VRF MULTI SYSTEMScoolink-bg.com/wp-content/uploads/2018/12/MHI-vrf_multi... · 2018. 12. 26. · 80...

80

The complete control of technology is one of the pillars of MHI. KXZ models with VRF-T technology are an example: high-performance systems thanks to operating flexibility, high energy efficiency and easy installation.

Centralised management makes it possible to reduce electricity costs, thus saving in comparison with traditional systems.

KXZ can meet the needs of an increasing number of applications in the commercial and industrial sectors.

VRF MULTI SYSTEMS

81

NEW

Line-up outdoor units 82

In heat pump KXZ SYSTEM 86

KXZ MICRO COMPACT series 100

KXE6 MICRO LARGE CONNECTION series 102

KXZP MICRO SMART series 104

KXZ ADVANCED series 106

KXZX Hi-COP series 114

Heat recovery KXZ SYSTEM 118

KXZR 3-PIPE series 124

KXZRX Hi-COP series 130

Line-up indoor units 137

Indoor units 138

Post-treatment modular unit 166

EEV-KIT 168

Water cooled KXZW WATER series 132

VRF Multi systems

82

KXZ MICRO COMPACT

KXZP MICRO SMART

KXZ ADVANCED

KXZX Hi-COP

KXE6 MICRO LARGE CONNECTION

NEW

OUTDOOR HEAT PUMP UNITS

11.20 kW 14.00 kW 15.50 kW4HP 5HP 6HP

FDC112KXZEN1 FDC140KXZEN1 FDC155KXZEN1FDC112KXZES1 FDC140KXZES1 FDC155KXZES1

22.40 kW 28.00 kW 33.50 kW8HP 10HP 12HP

FDC224KXE6 FDC280KXE6 FDC335KXE6

22.40 kW 28.00 kW8HP 10HP

FDC224KXZPE1 FDC280KXZPE1

28.00 kW 33.50 kW 40.00 kW 45.00 kW 47.50 kW 50.00 kW 56.00 kW10HP 12HP 14HP 16HP 17HP 18HP 20HP

FDC280KXZE1 FDC335KXZE1 FDC400KXZE1 FDC450KXZE1 FDC475KXZE1 FDC500KXZE1 FDC560KXZE1

61.50 kW 67.00 kW 73.50 kW 80.00 kW 85.00 kW 90.00 kW 95.00 kW 100.00 kW 106.00 kW 112.00 kW22HP 24HP 26HP 28HP 30HP 32HP 34HP 36HP 38HP 40HP

FDC615KXZE1 FDC670KXZE1 FDC735KXZE1 FDC800KXZE1 FDC850KXZE1 FDC900KXZE1 FDC950KXZE1 FDC1000KXZE1 FDC1060KXZE1 FDC1120KXZE110+12 12+12 12+14 14+14 14+16 16+16 17+17 18+18 18+20 20+20

FDC280KXZE1FDC335KXZE1

FDC335KXZE1 FDC335KXZE1










FDC1200KXZE1 FDC1250KXZE1 FDC1300KXZE1 FDC1350KXZE1 FDC1425KXZE1 FDC1450KXZE1 FDC1500KXZE1 FDC1560KXZE1 FDC1620KXZE1 FDC1680KXZE114+14+14 14+14+16 14+16+16 16+16+16 17+17+17 17+17+18 18+18+18 18+18+20 18+20+20 20+20+20

FDC400KXZE1 FDC400KXZE1 FDC400KXZE1










22.40 kW 28.00 kW 33.50 kW8HP 10HP 12HP

FDC224KXZXE1 FDC280KXZXE1 FDC335KXZXE1

45.00 kW 50.00 kW 56.00 kW 61.50 kW 67.00 kW16HP 18HP 20HP 22HP 24HP

FDC450KXZXE1 FDC500KXZXE1 FDC560KXZXE1 FDC615KXZXE1 FDC670KXZXE18+8 8+10 10+10 10+12 12+12

FDC224KXZXE1FDC224KXZXE1





73.50 kW 80.00 kW 85.00 kW 90.00 kW 95.00 kW 100.00 kW26HP 28HP 30HP 32HP 34HP 36HP

FDC735KXZXE1 FDC800KXZXE1 FDC850KXZXE1 FDC900KXZXE1 FDC950KXZXE1 FDC1000KXZXE18+8+10 8+10+10 10+10+10 10+10+12 10+12+12 12+12+12

FDC224KXZXE1FDC224KXZXE1FDC280KXZXE1






VRF Multi systems

83

KXZRX Hi-COP

KXZR 3-PIPE

KXZW WATER

NEW

NEW

OUTDOOR HEAT RECOVERY UNITS

22.40 kW 28.00 kW 33.50 kW8HP 10HP 12HP

FDC224KXZRE1 FDC280KXZRE1 FDC335KXZRE1

40.00 kW 45.00 kW 47.50 kW 50.00 kW 56.00 kW 61.50 kW 67.00 kW14HP 16HP 17HP 18HP 20HP 22HP 24HP

FDC400KXZRE1 FDC450KXZRE1 FDC475KXZRE1 FDC500KXZRE1 FDC560KXZRE1 FDC615KXZRE1 FDC670KXZRE1

73.50 kW 80.00 kW 85.50 kW 90.00 kW 95.00 kW 100.00 kW 106.00 kW 112.00 kW26HP 28HP 30HP 32HP 34HP 36HP 38HP 40HP

FDC735KXZRE1 FDC800KXZRE1 FDC850KXZRE1 FDC900KXZRE1 FDC950KXZRE1 FDC1000KXZRE1 FDC1060KXZRE1 FDC1120KXZRE112+14 14+14 14+16 16+16 17+17 18+18 18+20 20+20

FDC335KXZXRE1FDC400KXZXRE1









FDC450KXZRXE1 FDC500KXZRXE1 FDC560KXZRXE1 FDC615KXZRXE1 FDC670KXZRXE18+8 8+10 10+10 10+12 12+12

FDC224KXZRE1FDC224KXZRE1






FDC735KXZRXE1 FDC800KXZRXE1 FDC850KXZRXE1 FDC900KXZRXE1 FDC950KXZRXE1 FDC1000KXZRXE18+8+10 8+10+10 10+10+10 10+10+12 10+12+12 12+12+12

FDC224KXZRE1FDC224KXZRE1FDC280KXZRE1






22.40 kW 28.00 kW 33.50 kW8HP 10HP 12HP

FDC224KXZWE1 FDC280KXZWE1 FDC335KXZWE1


FDC450KXZWE1 FDC500KXZWE1 FDC560KXZWE1 FDC615KXZWE1 FDC670KXZWE18+8 8+10 10+10 10+12 12+12

FDC224KXZWE1FDC224KXZWE1






FDC730KXZWE1 FDC775KXZWE1 FDC850KXZWE1 FDC900KXZWE1 FDC950KXZWE1 FDC1000KXZWE18+8+10 8+10+10 10+10+10 10+10+12 10+12+12 12+12+12

FDC224KXZWE1FDC224KXZWE1FDC280KXZWE1







FDC1200KXZRE1FDC1250KXZRE1FDC1300KXZRE1FDC1350KXZRE1FDC1425KXZRE1FDC1450KXZRE1FDC1500KXZRE1FDC1560KXZRE1FDC1620KXZRE1FDC1680KXZRE114+14+14 14+14+16 14+16+16 16+16+16 17+17+17 17+17+18 18+18+18 18+18+20 18+20+20 20+20+20











VRF Multi systems

INDOOR WATER COOLING UNITS

84

KXZ ADVANCED

KXZ MICRO COMPACT KXZP MICRO SMARTKXE6 MICRO LARGE CONNECTION

KXZX Hi-COP

KXZRX Hi-COP

KXZR 3-PIPE NEW

NEW

NEW

OUTDOOR UNITS - DESIGN FLEXIBILITY

Power can be connected to outdoor units

* When connecting the indoor units in the FDK, FDFL, FDFU or FDFW series, the power of the connectable indoor units cannot exceed 130%.

HP 4 5 6kW 11.2 14.0 15.5EER 4.44 3.54 2.98COP 4.36 3.83 3.62max no. connectable IU 8 10 10power of the connectable IUs (%) 80%~150%

HP 8 10 12kW 22.4 28.0 33.5EER 4.00 3.46 3.41COP 4.15 3.84 3.71max nr. connectable IU 15 19 22power of the connectable IUs (%) 50%~150%*

HP 8 10kW 22.4 28.0EER 4.00 3.56COP 4.67 4.33max nr. connectable IU 8 8power of the connectable IUs (%) 50%~120%

HP 10 12 14 16 17 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60kW 28.0 33.5 40.0 45.0 47.5 50.0 56.0 61.5 67.0 73.5 80.0 85.0 90.0 95.0 100.0 106.0 112.0 120.0 125.0 130.0 135.0 142.5 145.0 150.0 156.0 162.0 168.0EER 3.87 3.74 3.65 3.22 3.40 3.58 3.37 3.80 3.74 3.69 3.65 3.41 3.22 3.40 3.58 3.47 3.37 3.65 3.48 3.34 3.22 3.40 3.46 3.58 3.50 3.43 3.37COP 4.33 4.15 4.21 4.00 4.08 4.15 3.95 4.23 4.15 4.18 4.21 4.10 4.00 4.08 4.15 4.04 3.95 4.21 4.13 4.06 4.00 4.08 4.10 4.15 4.08 4.01 3.95max nr. connectable IU 24 29 34 39 41 43 48 53 58 63 69 73 78 80 80 80 80 80 80 80 80 80 80 80 80 80 80power of the connectable IUs (%) 50~130%

HP 8 10 12 16 18 20 22 24 26 28 30 32 34 36kW 22.4 28.0 33.5 45.0 50.0 56.0 61.5 67.0 73.5 80.0 85.0 90.0 95.0 100.0EER 4.50 4.03 3.86 4.50 4.24 4.03 3.94 3.85 4.30 4.15 4.03 3.96 3.91 3.86COP 4.50 4.61 4.47 4.50 4.55 4.60 4.54 4.46 4.53 4.57 4.61 4.57 4.51 4.46max nr. connectable IU 29 37 44 60 53 59 65 71 78 80 80 80 80 80power of the connectable IUs (%) 80~200% 80~160%

KXZKXZX

Connectable power: 130% (KXZ)Connectable power: 160%~200% (KXZX)

HP 16 18 20 22 24 26 28 30 32 34 36kW 45.0 50.4 56.0 61.5 68.0 73.5 80.0 85.0 90.0 96.0 101.0EER 4.37 3.99 3.79 3.61 3.48 4.16 4.02 3.84 3.69 3.56 3.46COP 4.87 4.63 4.52 4.30 4.13 4.76 4.71 4.58 4.39 4.24 4.11max nr. connectable IU 60 53 59 65 70 78 80 80 80 80 80power of the connectable IUs (%) 80~200% 80~160% 80~130%

HP 8 10 12 14 16 17 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60kW 22.4 28.0 33.5 40.0 45.0 47.5 50.0 56.0 61.5 67.0 73.5 80.0 85.0 90.0 95.0 100.0 106.0 112.0 120.0 125.0 130.0 135.0 142.5 145.0 150.0 156.0 162.0 168.0EER 4.35 3.79 3.47 3.46 3.11 3.20 3.29 3.05 2.88 2.62 3.47 3.46 3.27 3.11 3.21 3.29 3.16 3.06 3.46 3.33 3.21 3.11 3.21 3.23 3.29 3.20 3.13 3.06COP 4.84 4.52 4.12 4.09 3.95 4.10 4.10 3.90 3.80 3.60 4.11 4.10 4.03 3.95 4.09 4.12 4.00 3.90 4.10 4.05 4.00 3.95 4.10 4.10 4.11 4.03 3.97 3.91max nr. connectable IU 29 37 44 53 60 50 53 59 65 71 78 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80 80power of the connectable IUs (%) 50~200% 50~160% 50~130%

VRF Multi systems

85

KXZW WATER

HP 8 10 12 16 18 20 22 24 26 28 30 32 34 36kW 22.4 28.0 33.5 45.0 50.0 56.0 61.5 67.0 73.0 77.5 85.0 90.0 95.0 100.0EER 5.30 4.87 4.12 5.30 5.09 4.87 4.49 4.11 5.14 5.00 4.86 4.62 4.38 4.12COP 5.90 6.18 5.95 5.90 6.04 6.18 6.05 5.95 5.98 6.08 6.17 6.10 6.02 5.96max nr. connectable IU 22 28 33 44 50 56 61 67 72 78 80 80 80 80power of the connectable IUs (%) 50~150%

OUTDOOR UNITS - DESIGN FLEXIBILITY

Power can be connected to outdoor units

VRF Multi systems

86

› Refrigerant temperature control

› High efficiency

› High COP values

› 34% energy savings

› Compact design

› Design flexibility

› Fast installation

› Ease of maintenance

› Minimum operating costs

"Innovative technology for evolutionary standards in the air conditioning of industrial and commercial environments"

Functional control and innovative components make this system technology more efficient

VRF Multi systems KXZ seriesHeat pump

COP 4.6 KXZX

87

WIDE RANGE

THE SYSTEM Mitsubishi Heavy Industries' KXZ heat pump series with VRF-T technology is distinguished by the possibility of controlling the refrigerant temperature in the various stages of operation, improving the performance levels compared to traditional systems. KXZ is a unique system that provides an excellent performance both cooling and heating. Maximum level of design flexibility, reduction of energy consumption and advanced operating functions, centralised management of system and above all Hi-COP (KXZX), complete the profile of the KXZ series, which ensures reliability and efficiency over time.

APPLICATION IN NZEB SOLUTIONKXZ system with VRF-T technology is particularly suitable for applications on buildings constructed according to ZEB logic. In fact, the “zero-energy” buildings, realized according to ZEB logic, have the characteristics of reducing the energy consumption, but also of producing the required energy by renewable energy sources, since their goal is the self-sufficiency. To construct ZEB buildings, it is essential that energy efficiency is put as a priority condition since the construction project, taking into consideration all the components that contribute to the final result: heating, cooling, photovoltaic systems and domestic hot water, until the energy management of the entire structure. To achieve this result, one of the main application solutions is constituted by heat pumps, such as those of KXZ system with VRF-T technology.

WHY CHOOSE THE KXZ – VRF-T SYSTEM? HERE ARE 4 GOOD REASONS.

1. ENERGY SAVINGS UP TO 34%With VRF-T technology, refrigerant temperature control during the condensation and evaporation phases in the refrigerant system ensures energy savings up to 34% in cooling mode during the partial loads, compared to the traditional VRF models.

Traditional system cooling operation

Room temperature

Set temperature

Energy savings: Max 34%Room temperature

Set temperature

Compressor

Low pressure target

Control of the temperature difference

Compressor

Low pressure target

Constant level

In a traditional system, the refrigerant target pressure to be maintained is constant. As soon as room temperature reaches the temperature set by the user, the compressor is forced to decrease and increase the rpm by on-off cycles that affect the overall efficiency and performance.

KXZ system cooling operation with activation of VRF-T mod

With the new VRF-T, the refrigerant target pressure to be maintained is not constant, but adjusts proportionally to the difference between the room temperature and the desired temperature. This allows the Inverter compressors to modulate the rpm without ever stopping, thus expressing the maximum efficiency for a global energy saving operation.

Indoor units.16 types of units for a total of 91 models.The variety of types and capacities ensures an offer capable of meeting all the design and installation requirements.

Outdoor units.Up to 80 connectable indoor units. 5 product lines from 8 to 60HP (22.4~168.0 kW): Micro Compact, Micro Smart, Advanced, HiCOP and Water. Mitsubishi air conditioners with VRF-T technology all have double vertical fan and three-phase power supply. They can be installed also in twin combination, with only one refrigerant circuit. The total splitting distance reaches 1000 m.

VRF Multi systems KXZ series

88

2. COMPACT DESIGN, FOR EASY INSTALLATION

10~60HP (KXZ)

DC Inverter fan motor

Tetrahedral structure of heat exchanger

High efficiency heat exchanger with anti-corrosion Blue Fin

Dual condensate drain

New Scroll Multi-Port compressors, all Inverter. No On/Off

New vector Inverter control

3. NEW ELECTRICAL WINDING FOR THE COMPRESSOR, FOR HIGH PERFORMANCE AND EFFICENCY

The new compacted design of the motor winding significantly improves the electrical performance, which results in increased efficiency, especially in partial loads with a consequent increase in seasonal efficiency.

4. DC INVERTER COMPRESSOR, FOR HIGH SCOP

The multi-port discharge system of the compressor guarantees better volumetric performance. Optimisation of the pressure control, in particular to the medium compressor operation frequencies, with consequent improvement to seasonal efficiency performance.All KXZP/KXZ/KXZX outdoor units use DC Inverter compressors only, and no on/off compressor.

Discharge port

In the case of KXZP (8/10HP); KXZ (10/12/18/20HP) and KXZX (8HP)

Multi-port discharge

Adjustment of compression phase with multi-port discharge that ensures a greater efficiency

Total efficiency

* Used for KXZP SMART power 8/10HP; KXZ ADVANCED power 10/12/17/18/20HP and KXZX Hi-COP power 8HP and KXZR both standard and Hi-COP.

Supp

lied p

ower

New concentrated windings*

Windings distributedin standard mode

Increasein seasonal average

efficiencyCompressor speed

Heat pumpVRF Multi systems KXZ series

89

KXZ

manifold distributor

EXCHANGER EXCHANGER

NEW REFRIGERANT DISTRIBUTORThe new configuration composed of distributor and capillary has optimized the diffusion of refrigerant in the new heat exchanger, with a further increase in the total efficiency of system and a decrease in the possibility of icing on heat exchanger, with consequent reduction in defrost time.

Oil balance pipe

OIL LEVEL CONTROLMitsubishi oil level adjustment technology for the combination of two or three outdoor units allows operation with constant balancing, maintaining the units' performance and guaranteeing a long system life.

POWER OUTPUT CONTROLThe power output can be controlled and selected by the function of power cut through RC-EX3, remote control, to obtain a greater energy saving. The 5-step power control (100-80-60-40-0%) is available, that can be programmed in hour intervals, every week.

INVERTER CONTROL (VECTOR)The use of a new vector inverter control, allows the user to:• Increasetheresponsespeedofcompressorsatlowandhigh

speed.•Re-createexactlythesinusoidalwaveformofthevoltage

applied.• Increasetheefficiencyofcompressorsatlowspeedandpartial

loads.

Powe

r sup

ply

Operation time

NEW FAN DESIGN

New fan blades with serrated edges that treat a greater air volume, offering low resistance to air and reducing energy consumption.

Serrated edges

DC FAN MOTOR

The use of DC fan motors can help achieve excellent efficiency, with an increase higher than 60% compared to the previous models.

Rotor (squirrel cage ofconductor material)

Stator (coil)

Rotor (permanent magnet)

Stator (coil)


previous

90

ADVANTAGES FOR DESIGNERS

The system design phase requires flexible and advanced solutions, able to respond to each manufacturing solution.Below is a list of all the points that make KXZ - VRF-T a system equipped with all the advantages that meet new design standards.

1. HIGH SPLITTING LENGTH, FLEXIBLE DESIGN 1000 m [10~60HP

(KXZ series)]

The splitting height difference between indoor units has been increased up to 18 m, permitting the placement of indoor units on three additional storeys. The farthest indoor unit (160 m) or the total length (1000 m) contribute to the flexible design of the system.

Total length: 1000 m

max. 10 m

To the first branch: max 130 m

From the first branch pipe to the furthest IU: 90 m*

max. 5 m

Outdoor unit max. 0.4 m

Splitting height difference 50 m (outdoor unit higher) -> 70 m**40 m (outdoor unit lower)

Max height difference between IUs 18 m

Furthest indoor unit

160 m

Indoor unit

Indoor unit

Indoor unit

Thanks to the significant reduction in the weight and overall plan dimensions, the KXZ and KXE6 (Lc) MICRO outdoor units can be easily transported in a lift capable of containing 6 people (if permitted by the condominium regulations), with a consequent reduction in costs, time and working procedures.The outdoor units in the KXZ and KXZX series have a functional base, which makes it easier to lift and transport them to the place of installation. They are also characterised by the same overall plan dimensions, which facilitates the installation of the machines in series as well as optimising times and procedures for maintenance and replacement of each unit.

Lift

2. EASY TRANSPORT & INSTALLATION

H 1675 x L 1080 x D 480


91

1080 mm

970 mm

KXE6 Micro (Lc) KXZP SMART

480 mm

1505 mm

1675 mm

KXE6 Micro (Lc) KXZP SMART

221 kg

165 kg

-20° C

-15° C

+15.5° C

+50° C

-20° C

-15° C

+15.5° C

+46° C

3. WIDE OPERATING RANGE, FLEXIBLE DESIGN

The KXZP series enables operation in heating mode with an outdoor temperature limit of -20°C and a cooling range up to 50°C.This series allows for a more flexible system design, considering a heating range at low temperature conditions down to -20°C, and a cooling range up to 46°C.

KXZP

KXZ/KXZX

HEATING

Cooling

HEATING

Cooling

4. BLUE FIN FUNCTION, AGAINST CORROSION OF THE HEAT EXCHANGERS

The particular coating of the heat exchanger louvers guarantees perfect resistance to corrosion and deterioration caused by atmospheric agents.

5. COMPACT DESIGN

10% less23% less

10% less

25% less

6. EXTERNAL STATIC PRESSURE UP TO 35 PA

9. ADDITIONAL FUNCTIONS:

• POWER DEMAND FUNCTION The outdoor unit's rated power can be decreased.•SEASONAL OPTION A summer/winter season function change can be set.• OUTPUT SIGNAL OPTION Indicates start-up signal or error signal.

7. FUNCTION OF OUTDOOR FAN MOTORS

Function with pressure head useful for ducting.

8. AUTOMATIC FUNCTION FOR REDUCED WEAR

The outdoor units with multiple compressors are subject to wear. This automatic function balances the automatic operation of compressors, depending on the hours of operation.


92

8~60HP

Inverter

KXZ KXZP SMART

1. MONITORING FUNCTION

Thanks to a simple navigation menu, the displays on the outdoor unit boards are able to show all the vital parameters of the unit and any error messages for prompt intervention.

Connect a PC to the RS 232C port, available on the board, to monitor and save all the historical data of system for assistance and control activities. Our Mente PC software must be installed on the PC.

2. BACK UP FUNCTION, OPERATION RESTORED

The unit uses Inverter compressors only.In the event that one of them malfunctions, the unit can however operate at reduced capacity.

In multiple combinations of high capacity of two or three outdoor units, unit malfunction does not affect total operation of the system, which will continue to operate in a partial manner.

3. EASY ACCESS TO THE ELECTRICAL BOX FOR EASY MAINTENANCE

Inverter service and maintenance are now easier thanks to the new control box with a structure of 3 levels (KXZ) and 2 levels (KXZP SMART) with a hinged connection.

Running Compressor failure

KXZ: 18 and 20HP

Unit failure

Combination of two or three outdoor units

ADVANTAGES FOR INSTALLERS

Installing KXZ units in a system means having an installation able to satisfy the most varied requirements, thanks to useful functions and important features which make the life of the system easier to manage, during both installation and maintenance.


93

4. IMPROVED PRACTICALITY

Position of pipes:1) From the front2) To the right3) Below4) From the back

New holes for thread insertion, to prevent falls

Service panel maintenance

Clear rain cover

Unit installation and maintenance of unit are easier thanks to the reduced number of fixing screws on the service panel (from 5 to 2).

5. GAS TESTING FUNCTION

This function provides for a procedure capable of verifying whether the amount of refrigerant gas contained inside the system is correct. The positive side to this is evident, as it optimises the use of gases that are harmful to the environment, as required by current legislation.

6. AUTO-ADDRESSING FUNCTION

Simply power the unit and this automatic function will facilitate intelligent connection between multiple units.

7. ADDITIONAL FUNCTIONS

•Simplifiedtestprocedure

•Simplifiedfunctionforwiring

•Easyfunctionforrefrigerantinstallationandmaintenance

•Theunit'sdistinguishingfeatureisthatofbeingEasy Service, as it permits easy maintenance, easy electronic check and feedback by the protection system in case of malfunctions


94

1. REDUCED COSTS

Cost reduction is an advantage that relates to several aspects: - Savings in management costs- Savings in maintenance costs- Savings on annual consumption thanks to high energy

efficiency

2. COMPLETE SOLUTION

The only system for heating, cooling and management control that can fit any solution.

3. MAXIMUM RELIABILITY

- Well-tested systems in every condition- After-sales service and service network always available- Prompt availability of spare parts

4. INTEGRATION & BUILDING AUTOMATION

The KXZ- VRF-T system boasts integration with home automation systems or Building Automation for easier and more uniform management.

5. BEST ENERGY CLASS

Being in heat pump, the use of KXZ- VRF-T improves building energy classifications with higher scores, thus increasing building value.

A complete system in terms of comfort and smart control, that can be customised to meet the needs of all types of buildings, stores or housing solutions.KXZ with VRF-T technology, designed with integration in mind, is an ideal system because it allows end users to achieve maximum energy efficiency as well as manage several systems, with ease of use guaranteed by leading control standards.


ADVANTAGES FOR USERS

95

HEAD8-371-2/1B

REFRIGERANT CONNECTIONS

VRF-T systems are manufactured to the highest standards of quality and reliability and it is therefore essential for the installation procedures and materials to have the same qualitative features, to ensure trouble-free long-term operation. It is advisable to use high quality copper refrigerant piping, in coils or in straight, semi-rigid lengths. The copper piping should be chosen considering the higher operating pressure of R410A refrigerant gas and the increased pressure circulating in the system produced by reverse cycle operation. All materials used must comply with European standards (EN 12735). The branch pipe kits supplied must be used to connect the indoor units and the manifold kits must be used to connect the outdoor units (if necessary). It is forbidden to use standard accessories (elbow pipes, T-joints etc.). The branch pipes must be installed according to manufacturer guidelines and must allow a continuous flow of refrigerant in accordance with European standard E378:2017.All connecting welds must be made under slight nitrogen pressure to prevent the oxidation of the inner surface of the copper pipes. During installation, no accidental entry of condensate, dust or any other contaminant must be permitted. Once installation is complete, a leak test must be carried out to check for refrigerant leaks with pressurised nitrogen. The ends of the pipe must be bent and welded and an appropriate service valve affixed.

Additional refrigerant chargeOnly R410A refrigerant gas must be used, and this must be added by weight using an electronic meter. The amount of additional refrigerant must be carefully calculated according to the manufacturer’s guidelines, defined by the length and diameter of each section of the system piping.

Single outdoor unit

Refrigerant piping system with manifold kit Refrigerant piping system with branch pipe kit

KXZ ADVANCED - KXZX HiCOP


Combined outdoor units

Refrigerant piping system with branch pipe kit

Refrigerant oil compensation pipe

Set of outdoor unit branch pipesOutdoor unit Set of branch pipes

2 units (for 615 ~ 1120) DOS-2A-3(B)3 units (for 1200 ~ 1680) DOS-3A-3


DOS-2A-3(B)

96

DIS-22-1G(1B)/DIS-180-1G(1B) HEAD6-180-1G(1B)

DIS-371-1G(1B)/DIS-540-3 DOS-2A-3(B)/DOS-3A-3


HP 10 12 14 16 17 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60Liquid side Furthest IU

= 90 mø 12.7 ø 15.88 ø 19.05 ø 22.22

Gas side ø 22.22 ø 28.58 ø 34.92

Liquid sideGas side

YES

NO

NO

vertical

horizontal

floor

floor

floor

floor

First branch pipe of the indoor unitTotal capacity of indoor units

Set of branch pipes

Set of manifoldsModel Branch pipes

~179 DIS-22-1G(1B) HEAD4-22-1G(1B) Max. 4 units180~370 DIS-180-1G(1B) HEAD6-180-1G(1B) Max. 6 units371~539 DIS-371-1G(1B) HEAD8-371-2(1B) Max. 8 units540~ DIS-540-3 HEAD8-540-3 Max. 8 units

Branch pipes Manifolds

YES


REFRIGERANT CONNECTIONS

Refrigerant oil compensation pipe

Refrigerant piping system with manifold kit

HEAD8-540-3

DOS-2A-3(B)


97

ELECTRICAL CONNECTIONSVRF MHI systems require highly simplified electrical connections to the indoor units, thanks to a control circuit that uses 2 non-polarised conductors. The supply system has wiring that can be connected on the front, right, left or rear of the outdoor unit. For three-phase outdoor units and single phase indoor units, a separate power supply must be used. The interaction between the outdoor unit and indoor unit takes place via the control device only.

Outdoor unit power supply: three-phase, 4 wires, 380~415V Separated power supply system

Outd

oor u

nitEarth leakagebreaker

Circuitbreaker Ground

A Main power supply cable (4 wires)B Signal lines - Superlink (2 wires)C Indoor units power cable (2 wires)D Cables for the wired remote control (2 wires)

Earth leakagebreaker

Circuitbreaker

Indoor unit

wired remote control

Indoor unit power supply: single phase 220~240V

CAUTION: if the RCD is dedicated solely to protecting against leakage to earth, it will be necessary to install a circuit breaker.

The maximum number of indoor units that can be connected to a signal line is 128, and it is possible to create groups of outdoor and/or indoor units connected to the same outdoor unit or to separate outdoor units, as long as they are connected to the same signal line. The signal line can also be connected by adopting the method described below (multiple connectors).

0.75 mm2 1.25 mm2~1000 mm YES YES

1000~1500 mm YES NO

Signal line

IMPORTANT: A loop connection of the signal lines is NOT ALLOWED

A loop cannot be formed with the signal, therefore the section of the connection indicated with ........is not permitted

Length (m) Type of cables100~200 0.5 mm2 x 2 wires

~300 0.75 mm2 x 2 wires~400 1.25 mm2 x 2 wires~600 2.0 mm2 x 2 wires

Single outdoor unit


OU signal terminal board

IU signal terminal board

The signal lines have no polarity therefore the connections listed below are permitted

Network connectors

Signal lines

Refrigerant lines

The signal line is 5 VDC and uses 2 non-polarised conductors marked A1 and B1. AB connects the outdoor unit to the indoor unit and vice versa. For the signal line with 2 conductors, use shielded cables measuring 0.75 or 1.25 mm2. Earth the shield on all the indoor and outdoor units.

If using combined outdoor units, connect:• Thesignallinebetweenindoorand

outdoor units, and the signal line between outdoor units that belong to the same

refrigerant line, to A1 and B1;• Thesignallinebetweenoutdoor

units belonging to a different refrigerant line to A2 and B2.

The specifications for the connection between the wired remote control and the indoor units (XY connection) are 0.3 mm2 x 2 wires. The maximum permitted length is 600 m. If the length exceeds 100 m, refer to the table.

Wired remote control

OU

IU

OUOUOU

IUIUIU

OU

IU

OU OU

IU IU

IU IU IU

OU OU OU OU

IU

IU

IU

IU


98

4545

5656

7171

2828

5656

total314

total198

It is possible to fix the operation mode of the system (cooling or heating) using a switch (SW3-7) on the outdoor unit PC board: this enables the user to decide the operation of the system inside the building (e.g. cooling only in summer/heating only in winter), to avoid unnecessary energy waste. It is also possible to wire the control switch to a remote location (inside the building), in a control room, or even linked to an ambient thermostat.

FIXED COOLING MODE/FIXED HEATING MODE (SUMMER/WINTER SWITCH)

Priority operating mode selection You can select the following priority operation modes (for the whole

system).

1. The first unit's operating mode commands the operating mode (default setting).

The system operates according to the mode selected by the majority of units in operation, taking into consideration the greater capacity between the sum of units in cooling mode and those in heating mode. The minority operating mode is set to fan mode automatically.

“Majority” operating mode

In “Master” function, if you select the cooling mode, the units set in heating mode switch to fan mode automatically.

“Master” operating mode

Operating modecooling capacity

45+45+56+56+56+56

Cooling mode

Fan mode

Operating modeheating capacity71+71+28+28

Fan mode

Heating mode

Cooling mode Heating mode "Master" mode: cooling

"Master" mode: cooling

OPERATING MODE

2. The last unit's operating mode determines the operating mode for whole system.

3. “Majority” operating mode4. “Master” operating mode


99


100

Connects up to 10 indoor units/150% capacity

FDC 112 KXZEN1/ZES1 11.2 kW single phase/three-phaseFDC 140 KXZEN1/ZES1 14.0 kW single phase/three-phaseFDC 155 KXZEN1/ZES1 15.5 kW single phase/three-phase

› Maximum energy efficiency: COP 4,36 (4HP)› Scroll DC Inverter compressor on all units› DC Inverter fan motors › 4 sound levels in Silent mode› New PCB cooling system: A refrigerant pipe branch passes to

the base of the PCB to prevent overheating

Diagrams and measurements


Indoor unit

Indoor unit

Outdoor unit

* The total length of piping, liquid side ø9.52 mm (3/8") should be 50 m or less.

Total length 100 m

Height difference:30 m top OU15 m bottom OU

Furthest IU: 70 m*

Operating range

terminal board

intake

intake

outlet(Service space)

All measurements are in mm.

A Service valve (gas side) ø 15.88 (5/8”) (flare fitting)B Service valve (liquid side) ø 9.52 (3/8”) (flare fitting)C Piping outputD Condensate drain ø 20 x 3 holesE Fixing bolt holes M10 x 4 holesF Cable output ø 30 x 3 holes

DimensionsExample of installation

1 2 3L1 open open 500L2 300 5 openL3 150 300 150L4 5 5 5

Notes:(1) The unit should not be surrounded by walls on

any side(2) Secure the unit using anchor bolts(3) In case of exposure to strong wind, direct the unit so

that the air expulsion grille is at 90° in relation to the prevailing wind direction

(4) Allow at least 1 m clearance above the unit(5) If there are obstacles in front of the air expulsion

grille, the height must not exceed the height of the unit

(6) The label with the installation data is positioned in the bottom right corner of the front panelMinimum installation space

HP 4 5 6Liquid side

Furthest IU =

101

1. EU Delegated Regulation No.626/2011 on the labelling indicating the energy consumption of air conditioners.2. EU Regulation No.206/2012 - N.2281/2016 - Value measured according to harmonised standard EN14825.3. Value measured according to harmonised standard EN14511.4. Refrigerant leakage contributes to climate change. When released into the atmosphere, refrigerants with a lower global warming potential (GWP) contribute less to global warming than those with a higher GWP. This appliance contains a

refrigerant with a GWP of 2088. If 1 kg of this refrigerant fluid were released into the atmosphere, therefore, the impact on global warming would be 2088 times higher than 1 kg of CO2, over a period of 100 years. Under no circumstances should the user try to intervene on the refrigerant circuit or disassemble the product. Always contact qualified personnel if necessary.

VRF Multi systems KXZ MICRO COMPACT series

KXE6 NEW KXZ4HP 6 units → 8 units5HP 8 units → 10 units15H6 8 units → 10 units2

Increased number of connectable IU

1. max capacity

102

Up to the first branch pipe:max 130 m

From the first branch pipe to the furthest IU: 90 m* Furthest IU 160 m


Indoor unit

Indoor unit

Indoor unit

Outdoor unit

* With length difference between the furthest indoor unit and the nearest one from the first branch pipe < 40 m.

Total length 510 m


FDC224KXE6 FDC280KXE6 FDC335KXE6A Service valve (gas side) ø 19.05 (3/4”) (flare fitting) ø 19.05 (3/4”) (flare fitting) ø 19.05 (3/4”) (flare fitting)B Service valve (liquid side) ø 9.52 (3/8”) (flare fitting) ø 9.52 (3/8”) (flare fitting) ø 12.7 (1/2”) (flare fitting)C Piping output 4 holes 4 holes 4 holesD Hole for condensate drain ø 20 x 4 holes ø 20 x 4 holes ø 20 x 4 holesE Fixing bolt holes M10 x 4 holes M10 x 4 holes M10 x 4 holes

F Electrical connection outletø 30 x 2 holes (front)

ø 45 (side)ø 30 x 2 holes (rear)

ø 30 x 2 holes (front)ø 45 (side)

ø 30 x 2 holes (rear)

ø 30 x 2 holes (front)ø 45 (side)

ø 30 x 2 holes (rear)

G Connecting position of the local pipe (gas side) ø 19.05 (3/4”) (brazing) ø 22.22 (7/8”) (brazing) ø 25,4 (1”) (brazing)

Dimensions Example of installation1 2 3

L1 open open 1500(500)*1

L2 300 5 openL3 300 300 300L4 250(5)*2 250(5)*2 250(5)*2

Notes:(1) The unit should not be surrounded by walls on any side(2) Secure the unit using anchor bolts The anchor bolt must not

protrude more than 15 mm.(3) In case of exposure to strong wind, direct the unit so that the

air expulsion grille is at 90° in relation to the prevailing wind direction

(4) Allow at least 1 m clearance above the unit(5) If there are obstacles in front of the air expulsion grille, the height

must not exceed the height of the unit(6) The label with the installation data is positioned in the bottom

right corner of the front panel(7) Connect the service valve with the local pipe using the

connection pipe (gas side only)(8) The mark shows the position for the local pipe connection (gas

side only)

terminal board

intakeintake

outlet(Service space)

Minimum installation space

*1 The Figure in () shows the applicable value when the flexible flow adapter is installed.

*2 On condition of setting as it is specified in (), it is necessary to ensure 250 mm for L4 dimension when the compressor is replaced (i.e. if unit is moved).

Connect up to 22 indoor units/150% capacity

FDC 224 KXE6 22.4 kW three-phaseFDC 280 KXE6 28.0 kW three-phaseFDC 335 KXE6 33.5 kW three-phase

› 1 DC Inverter compressor (8 ~ 10 HP), 1 3D Scroll compressor (12 HP)

› High split: up to 510 m in total and with a maximum distance between the OU and the furthest IU of 160 m

Operating range

Diagrams and measurements

All measurements are in mm.

Outdoor unit

VRF Multi systems KXE6 MICRO LARGE CONNECTION seriesHeat pump

103

HP 8 10 12Liquid side Furthest IU

=

90 mø 12.7

Gas side ø 22.22 ø 28.58

Refrigerant connections Branch pipes Manifolds

2. EU Regulation No.2281/2016 - - Value measured according to harmonised standard EN14825.3. Value measured according to harmonised standard EN14511.4. Refrigerant leakage contributes to climate change. When released into the atmosphere, refrigerants with a lower global warming potential (GWP) contribute less to global warming than those with a higher GWP. This appliance contains a


VRF Multi systems KXE6 MICRO LARGE CONNECTION series

Models FDC224KXE6 FDC280KXE6 FDC335KXE6Nominal Cool. capacity (T=35°C) kW 22.40 28.00 33.50Cool. power consumption (T=35°C) kW 5.60 8.09 9.82Annual energy consumption in Cool. kWh/aSeasonal energy efficiency index in Cool. SEER2 6.55 6.03 5.77Rated energy efficiency coefficient in Cool. EER3 4.00 3.46 3.41Nominal Heat. capacity (T=7°C) kW 25.00 31.50 37.50Heat. power consumption (T=7°C) kW 6.03 8.21 10.12Annual energy consumption in Heat. kWh/aSeasonal energy efficiency index in Heat. SCOP2 4.55 4.54 4.49Rated energy efficiency coefficient in Heat. COP3 4.15 3.84 3.71Power Three-phase 380~415V 50HzRated current in Cool. A 9.25 13.22 15.87Rated current in Heat. A 9.85 13.41 16.36Sound pressure level dB(A) 59 60 61Sound power level dB(A) - - -External dimensions (hxlxd) mm 1675x1080x480Exterior appearance (Munsell colour) Stucco white (4.2Y7.5 / 1.1) equivalentNet weight kg 221 221 224Refrigerant circuit/Compressor type and qty. GTC5150NH40K×1 GTC5150NH40K×1 GTD5160NH40K×1Motor kW 3.81 5.22 7.25Starting method In line, direct

Indoor System Units Number of connectable IU from 1 to 15 from 1 to 19 from 1 to 22Total connectable capacity 112 ~ 336 140 ~ 420 167 ~ 502Crankcase heater W 33 33 33Refrigerant circuit/Heat exchanger Pipes finned and grooved internallyRefrigerant control Electronic expansion valveRefrigerant/GWP4 R410A/2088 R410A/2088 R410A/2088Quantity kg 11.50 11.50 11.50Tons of CO2 equivalent 24.01 24.01 24.01Refrigerant oil l 1.7 (M-MA32R) 1.7 (M-MA32R) 1.7 (M-MA32R)Defrost control Microcomputer controlledAir treatment/Fan type and quantity Axial fan x 2Motor W 144x2Starting method DirectAir flow (Standard) m3h 12000Shock and vibration absorption Rubber vibration absorber (for compressor)Safety devices Compressor overheating protection, overcurrent protection, power transistor overheating protection, abnormal high pressure protection

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 3/8” (9.52) Liquid side ø 3/8” (9.52) Liquid side ø 1/4” (12.7)Gas side ø 3/4” (19.05) Gas side ø 7/8” (22.22) Gas side ø 1” (25.4)Joining method Liquid line flare/Gas line brazingCondensate drain Holes for drain ø20x4Piping insulation Necessary (on both sides, liquid and gas)Accessories - - -

DIS-22-1G/1BDIS-180-1G/1B

DIS-371-1G/1B HEAD4-22-1G/1B HEAD6-180-1G/1BHEAD8-371-2/1B

8~12 HP (22.4~33.5 kW)

104

Up to the first branch pipe: max 90 m

From the first branch pipe to the furthest IU: 40 m

Furthest IU 120 m


Indoor unit

Indoor unit

Indoor unit

Outdoor unit

Total length 150 m


intake

intake

outlet (Service space)

Minimum installation space

terminal board

Piping accessory(only for model FDC 280 KXZPE1)

Dimensions Example of installation1 2 3

L1 open open 500L2 300 5 openL3 150 300 150L4 250(5)* 250(5)* 250(5)*

* It is necessary to ensure 250 mm for L4 dimension when the compressor is replaced.


FDC 224 KXZPE1 22.4 kW three-phaseFDC 280 KXZPE1 28.0 kW three-phase

› Maximum energy efficiency: COP 4.67 (8 HP)

› Only DC Inverter compressors


› Compressor speed control

Operating range

Diagrams and measurementsAll measurements are in mm.

Ref. ItemA Gas side pipe fitting ø 19.05 (3/4”) (flare)B Liquid side pipe fitting ø 9.52 (3/8”) (flare)C Hole for draw-out cable (front - side) ø 30 x 2 holesD Hole for draw-out cable (front - side) ø 45 x 2 holesE Hole for draw-out cable (rear) ø 50F Pipe / cable draw-out port 4 holesG Condensate drain ø 20 x 3 holesH Fixing bolt hole M10 x 4 holes

Notes:(1) The unit should not be surrounded by walls on any side(2) Secure the unit using anchor bolts The anchor bolt must not

protrude more than 15 mm.(3) In case of exposure to strong wind, direct the unit so that

the air expulsion grille is at 90° in relation to the prevailing wind direction

(4) Allow at least 1 m clearance above the unit(5) If there are obstacles in front of the air expulsion grille, the

height must not exceed the height of the unit(6) The label with the installation data is positioned in the

bottom right corner of the front panel(7) Connect the service valve with the local pipe using the

connection pipe (gas side only) (The accessory pipe is used for FDC280KXZPE1 only)(8) Concerning the fixing of the accessory pipe, please refer to

the attached installation manual

VRF Multi systems KXZP MICRO SMART series

Outdoor unit

Heat pump

105

HEAD4-22-1G/1B HEAD6-180-1G/1B

DIS-22-1G/1BDIS-180-1G/1B

Branch pipes ManifoldsRefrigerant connections

HP 8 10Liquid side Furthest IU

=

90 mø 12.7

Gas side ø 22.22 ø 28.58

VRF Multi systems KXZP MICRO SMART series



Models FDC224KXZPE1 FDC280KXZPE1Nominal Cool. capacity kW 22.40 28.00Cool. power consumption kW 5.60 7.87Seasonal energy efficiency index in Cool. SEER2 6.65 6.68Rated energy efficiency coefficient in Cool. EER3 4.00 3.56Nominal Heat. capacity kW 22.40 28.00Heat. power consumption kW 4.80 6.47Seasonal energy efficiency index in Heat. SCOP2 4.34 4.50Rated energy efficiency coefficient in Heat. COP3 4.67 4.33Power Three-phase- 380-415V 50HzRated current in Cool. A 9.2 12.9Rated current in Heat. A 7.9 10.6Sound level dB(A) 60 63External dimensions (hxlxd) mm 1505×970×370 1505×970×370Exterior appearance (Munsell colour) Stucco white (4.2Y7.5 / 1.16) equivalent Stucco white (4.2Y7.5 / 1.16) equivalentNet weight kg 165 165Refrigerant circuit/Compressor type and qty. GTC5150NC40FK×1 GTC5150NC40FK×1Starting method Direct, in line Direct, in line

Indoor System Units Number of connectable IU from 1 to 8 from 1 to 8Total connectable capacity 112 ~ 268 140 ~ 336Crankcase heater W 33*1 33*1Refrigerant circuit/Heat exchanger Pipes finned with Blue fin treatment and grooved internally Pipes finned with Blue fin treatment and grooved internallyRefrigerant control Electronic expansion valveRefrigerant/GWP4 R410A/2088Quantity kg 8.9 8.9Tons of CO2 equivalent 18.58 18.58Refrigerant oil l 1.45 (M-MA32R) 1.45 (M-MA32R)Defrost control Micro -computerised Micro -computerisedAir treatment/Fan type and quantity Axial fan x 2 Axial fan x 2Motor W 86×2 86×2Starting method Direct DirectAir flow (Standard) m3h 7800 8700Available static pressure Pa Max 35Shock and vibration absorption Rubber vibration absorber (for compressor)Safety devices Compressor overheating protection/overcurrent/power transistor overheating protection/abnormal high pressure protection

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 3/8” (9.52)Gas side: ø19.05 (3/4”) (ø22.22 (7/8”) Gas side: ø22.22 (7/8”) (ø25.4 (1”) (ø28.58 (1 1/8”)Joining method Gas side: brazing / Liquid side: flareCondensate drain Drain holes: ø20 × 3pcs.Piping insulation Necessary (on both sides, liquid and gas)Accessories - -

8~10HP (22.4~28.0 kW)

106


FDC 280 KXZE1 28.0 kWFDC 335 KXZE1 33.5 kW

› Maximum energy efficiency: COP 4.33 (10HP)



* When connecting the indoor units in the following series: FDK, FDFL, FDFU or FDFW, the power of the connectable indoor units cannot exceed 130%.

VRF Multi system KXZ ADVANCED seriesHeat pumpModular outdoor units



Models FDC280KXZE1 FDC335KXZE1Nominal Cool. capacity kW 28.00 33.50Cool. power consumption kW 7.24 8.96Seasonal energy efficiency index in Cool. SEER2 7.25 7.38Rated energy efficiency coefficient in Cool. EER3 3.87 3.74Nominal Heat. capacity kW 31.50 37.50Heat. power consumption kW 7.28 9.04Seasonal energy efficiency index in Heat. SCOP2 4.89 4.85Rated energy efficiency coefficient in Heat. COP3 4.33 4.15Power Three-phase- 380-415V 50HzRated current in Cool. A 11.9 14.6Rated current in Heat. A 12 14.8Sound level dB(A) 57 61Outdoor(?) dimensions (hxlxd) mm 1690×1350×720Exterior appearance (Munsell colour) Stucco white (4.2Y7.5 / 1.16) equivalentNet weight kg 272 272Refrigerant circuit/Compressor type and qty. GTC5150NC47LF×1Motor kW 4.76*1 5.94*1Starting method Direct, in line

Indoor System Units Number of connectable IU from 1 to 24 from 1 to 29Total connectable capacity* 140 ~ 364 168 ~ 435Crankcase heater W 33*1 33*1Refrigerant circuit/Heat exchanger Pipes finned with Blue fin treatment and grooved internallyRefrigerant control Electronic expansion valveRefrigerant/GWP4 R410A/2088Quantity kg 11.00 11.00Tons of CO2 equivalent 22.97 22.97Refrigerant oil l 2.25 (M-MA32R)Defrost control Micro -computerisedAir treatment/Fan type and quantity Axial fan x 2Motor W 386×2Starting method DirectAir flow (Standard) m3h 13200 16800Available static pressure Pa Max 50Shock and vibration absorption Rubber vibration absorber (for compressor)Safety devices Compressor overheating protection/overcurrent/power transistor overheating protection/abnormal high pressure protection

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 3/8” (9.52) Liquid side φ12.7 (1/2”)Gas side ø 7/8” (22.22) Gas side: ø25.4 (1”) (ø22.22 (7/8”))Joining method Gas side: brazing / Liquid side: flareCondensate drain Drain holes: ø20 × 10pcs., ø45 x 3pcs.Piping insulation Necessary (on both sides, liquid and gas)Accessories - -

10~12HP (28.0~33.5 kW)

107

Operating rangeTotal length: 1000 m

Outdoor unit


Indoor unit

Indoor unit

Indoor unitFrom the first branch pipe to the furthest IU: 90 m*

* With difference of length between the farthest indoor unit and the nearest one from the first branch pipe < 40 m (MAX 85 m)** Comply with installation conditions. For details, refer to the Technical Manual.

Furthest IU 160 m


Splitting height difference50 m (outdoor unit higher) –> 70 m**40 m (outdoor unit lower)


rearView of refrigerant connections

References for the dimensions of the holes of the fixing boltsIncoming air

D (bottom)

C (front)C (right)

D (right)

C (rear)

D (front)

Label with instructions

Box for power cable wiring

Box for signal cable wiring

7-segment displayinspection hole

D (left)

Drain pipe

Notes:(1) Secure the unit using anchor bolts(2) Allow at least 2 m clearance above the unit(3) The adhesive label with the installation data should be positioned under the front panel (right side)(4) The inlet openings for the electrical and refrigerant connections are pre-cut (open using a cutter)(5) For the piping inlet, use the ø 88 hole(6) Use the fixing holes (M10) indicated with “L” and “J” when replacing an outdoor unit belonging to the old series(7) Connect the refrigerant oil compensation pipe (“K”) when using in combination with the outdoor unit

Ref. Item FDC280KXZE1 FDC335KXZE1A Gas side pipe fitting ø 22.22 (7/8”) (brazing) ø 25.4 (1”) (brazing)B Liquid side pipe fitting ø 9.52 (3/8”) (flare) ø 12.7 (1/2”) (flare)C Refrigerant pipe outlet ø88 (or ø100)D Power cable inlet ø 50 (right - left - front), slot 40 x 80 (at bottom)F Fixing bolt hole M10 x 4 holesG Condensate drain pipe connection ø 45 x 3 holesH Condensate drain ø 20 x 10 holesK Refrigerant oil compensation pipe connection ø 9.52 (3/8”) flareL Opening for movement 230 x 60

Example of installationDimensions 1 2

L1 500 openL2 10(30) 10(30)L3 100 100L4 10(30) openH1 1500 openH2 unlimited unlimitedH3 1000 unlimitedH4 unlimited open

Installation spaces

H3

H4H1Intake

Intake

H2

Intake

VRF Multi system KXZ ADVANCED series

108


FDC 400 KXZE1 40.0 kWFDC 450 KXZE1 45.0 kWFDC 475 KXZE1 47.5 kW

› Maximum energy efficiency: COP 4.21 (14 HP)



FDC 500 KXZE1 50.0 kWFDC 560 KXZE1 56.0 kW

Modular outdoor units

Heat pumpVRF Multi system KXZ ADVANCED series

* When connecting the indoor units in the following series: FDK, FDFL, FDFU or FDFW, the power of the connectable indoor units cannot exceed 130%. 2. EU Regulation No.2281/2016 - - Value measured according to harmonised standard EN14825.3. Value measured according to harmonised standard EN14511.4. Refrigerant leakage contributes to climate change. When released into the atmosphere, refrigerants with a lower global warming potential (GWP) contribute less to global warming than those with a higher GWP. This appliance contains a


Models FDC400KXZE1 FDC450KXZE1 FDC475KXZE1 FDC500KXZE1 FDC560KXZE1Nominal Cool. capacity kW 40.00 45.00 47.50 50.00 56.00Cool. power consumption kW 10.96 13.98 13.98 13.97 16.62Seasonal energy efficiency index in Cool. SEER2 6.66 6.36 6.84 7.29 6.45Rated energy efficiency coefficient in Cool. EER3 3.65 3.22 3.40 3.58 3.37Nominal Heat. capacity kW 45.00 50.00 53.00 56.00 63.00Heat. power consumption kW 10.69 12.50 13.00 13.49 15.59Seasonal energy efficiency index in Heat. SCOP2 4.23 4.36 4.31 4.58 4.30Rated energy efficiency coefficient in Heat. COP3 4.21 4.00 4.08 4.15 4.04Power Three-phase- 380-415V 50HzRated current in Cool. A 17.5 22.4 22.6 22.6 26.9Rated current in Heat. A 17.5 20.4 21 21.8 25.8Sound level dB(A) 62 61 61 62 66External dimensions (hxlxd) mm 2048x1350x720Exterior appearance (Munsell colour) Stucco white (4.2Y7.5 / 1.16) equivalentNet weight kg 317 317 370 370 370Refrigerant circuit/Compressor type and qty. GUC5185ND47Vx1 GTC5150NC47LFx2Motor kW 7.32*1 9.32*1 4.64*2 4.91*2 5.36*2Starting method Direct, in line

Indoor System Units Number of connectable IU from 1 to 34 from 1 to 39 from 1 to 41 from 1 to 43 from 1 to 48Total connectable capacity* 200 ~ 520 225 ~ 585 238 ~ 617 250 ~ 650 280 ~ 728Crankcase heater W 40*1 40*1 33*2 33*2 33*2Refrigerant circuit/Heat exchanger Pipes finned with Blue fin treatment and grooved internallyRefrigerant control Electronic expansion valveRefrigerant/GWP4 R410A/2088Quantity kg 11.50 11.50 11.50 11.50 11.50Tons of CO2 equivalent 24.01 24.01 24.01 24.01 24.01Refrigerant oil l 2.9 (M-MA32R) 4.2 (M-MA32R)Defrost control Micro -computerisedAir treatment/Fan type and quantity Axial fan x 2Motor W 386×2Starting method DirectAir flow (Standard) m3h 16800 16800 16800 16800 18600Available static pressure Pa Max 50Shock and vibration absorption Rubber vibration absorber (for compressor)Safety devices Compressor overheating protection/overcurrent/power transistor overheating protection/abnormal high pressure protection

Diameter cooling/refrigerant pipes mm (inch) Liquid side φ12.7 (1/2”)Gas side: ø25.4 (1”) (ø28.58 (11/8”)) Gas side: φ28.58 (11/8”)Joining method Gas side: brazing / Liquid side: flareCondensate drain Drain holes: ø20 × 10pcs., ø45 x 3pcs.Piping insulation Necessary (on both sides, liquid and gas)Accessories - - - - -

14~20HP (40.0~56.0 kW)

109

Operating rangeTotal length: 1000 m

Outdoor unit


Indoor unit

Indoor unit

Indoor unitFrom the first branch pipe to the furthest IU: 90 m*

* With difference of length between the farthest indoor unit and the nearest one from the first branch pipe < 40 m (MAX 85 m)

** Comply with installation conditions. For details, refer to the Technical Manual.

Furthest IU 160 m



rear

View of refrigerant connections


D (bottom)

C (front) C (right)

D (right)

C (rear)

D (front)





D (left)

Drain pipe

C (bottom)

Installation spaces

Intake

Intake


Ref. Item FDC400KXZE1 FDC450~560KXZE1A Gas side pipe fitting ø 25.4 (1”) (brazing) ø 28.58 (11/8”) (brazing)B Liquid side pipe fitting ø 12.7 (1/2”) (flare)C Refrigerant pipe outlet ø 88 (or ø 100)D Power cable inlet ø 50 (right - left - front), slot 40 x 80 (at bottom)F Fixing bolt hole M10 x 4 holesG Condensate drain pipe connection ø 45 x 3 holesH Condensate drain ø 20 x 10 holesK Refrigerant oil compensation pipe connection ø 9.52 (3/8”) flareL Opening for movement 230 x 60



Intake

H2H4

H1

H3

VRF Multi system KXZ ADVANCED series


110


max. 10 m (equalisation pipe oil)



max. 0.4 m


Outdoor unit

max. 5 m

Indoor unit

Indoor unit

Indoor unit


Furthest IU 160 m




FDC 615 KXZE1 (FDC280+FDC335) 61.5 kWFDC 670 KXZE1 (FDC335+FDC335) 67.0 kW




Operating range

Combinations

* When connecting the indoor units in the following series: FDK, FDFL, FDFU or FDFW, the power of the connectable indoor units cannot exceed 130%. 3. Value measured according to harmonised standard EN14511.



Models FDC615KXZE1 FDC670KXZE1

CombinationsFDC280KXZE1 FDC335KXZE1FDC335KXZE1 FDC335KXZE1

- -Power supply Three-phase- 380-415V 50HzNominal Cool. capacity kW 61.50 67.00Cool. power consumption kW 16.2 17.92Rated energy efficiency coefficient in Cool. EER3 3.80 3.74Nominal Heat. capacity kW 69.00 75.00Heat. power consumption kW 16.32 18.08Rated energy efficiency coefficient in Heat. COP3 4.23 4.15Rated current in Cool. A 26.50 29.20Rated current in Heat. A 26.80 29.60

Indoor System Units Number of connectable IU from 2 to 53 from 2 to 58Total connectable capacity* 308 ~ 799 335 ~ 871Net weight kg 544 544

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 1/2” (12.7)mm (inch) Gas side: ø28.58 (1.1/8”)Oil equalisation mm (inch) ø 3/8” (9.52)

22~24HP (61.5~67.0 kW)

111


FDC 735 KXZE1 (FDC335+FDC400) 73.5 kWFDC 800 KXZE1 (FDC400+FDC400) 80.0 kWFDC 850 KXZE1 (FDC400+FDC450) 85.0 kWFDC 900 KXZE1 (FDC450+FDC450) 90.0 kW




FDC 950 KXZE1 (FDC475+FDC475) 95.0 kWFDC 1000 KXZE1 (FDC500+FDC500) 100.0 kWFDC 1060 KXZE1 (FDC500+FDC560) 106.0 kWFDC 1120 KXZE1 (FDC560+FDC560) 112.0 kW





max. 0.4 m


Outdoor unit

max. 5 m

Indoor unit

Indoor unit

Indoor unit


Furthest IU 160 m



Operating range

Combinations




Models FDC735KXZE1 FDC800KXZE1 FDC850KXZE1 FDC900KXZE1 FDC950KXZE1 FDC1000KXZE1 FDC1060KXZE1 FDC1120KXZE1

CombinationsFDC335KXZE1 FDC400KXZE1 FDC400KXZE1 FDC450KXZE1 FDC475KXZE1 FDC500KXZE1 FDC500KXZE1 FDC560KXZE1FDC400KXZE1 FDC400KXZE1 FDC450KXZE1 FDC450KXZE1 FDC475KXZE1 FDC500KXZE1 FDC560KXZE1 FDC560KXZE1

- - - - - - - -Power supply Three-phase- 380-415V 50HzNominal Cool. capacity kW 73.50 80.00 85.00 90.00 95.00 100.00 106.00 112.00Cool. power consumption kW 19.92 21.92 24.94 27.96 27.96 27.94 30.59 33.24Rated energy efficiency coefficient in Cool. EER3 3.69 3.65 3.41 3.22 3.40 3.58 3.47 3.37Nominal Heat. capacity kW 82.50 90.00 95.00 100.00 106.00 112.00 119.00 126.00Heat. power consumption kW 19.73 21.38 23.19 25 26 26.98 29.44 31.9Rated energy efficiency coefficient in Heat. COP3 4.18 4.21 4.10 4.00 4.08 4.15 4.04 3.95Rated current in Cool. A 32.10 35.00 39.90 44.80 45.20 45.20 49.50 53.80Rated current in Heat. A 32.30 35.00 37.90 40.80 42.00 43.60 47.60 51.60

Indoor System Units Number of connectable IU from 2 to 63 from 2 to 69 from 2 to 73 from 2 to 78 from 2 to 80 from 2 to 80 from 2 to 80 from 2 to 80Total connectable capacity* 368 ~ 955 400 ~ 1040 425 ~ 1105 450 ~ 1170 475 ~ 1235 500 ~ 1300 530 ~ 1378 560 ~ 1456Net weight kg 589 634 634 634 740 740 740 740

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 5/8” (15.88) Liquid side: ø19.05 (3/4”)mm (inch) Gas side: ø31.75 (1.1/4”) (ø34.92 (1.3/8”) Gas side: ø38.1 (1.1/2”) (ø34.92 (1.3/8”)Oil equalisation mm (inch) ø 3/8” (9.52)

26~40HP (73.5~112.0 kW)

112


FDC 1200 KXZE1 (FDC400+FDC400+FDC400) 120.0 kWFDC 1250 KXZE1 (FDC400+FDC400+FDC450) 125.0 kWFDC 1300 KXZE1 (FDC400+FDC450+FDC450) 130.0 kWFDC 1350 KXZE1 (FDC450+FDC450+FDC450) 135.0 kWFDC 1425 KXZE1 (FDC475+FDC475+FDC475) 142.5 kW




FDC 1450 KXZE1 (FDC475+FDC475+FDC500) 145.0 kWFDC 1500 KXZE1 (FDC500+FDC500+FDC500) 150.0 kWFDC 1560 KXZE1 (FDC500+FDC500+FDC560) 156.0 kWFDC 1620 KXZE1 (FDC500+FDC560+FDC560) 162.0 kWFDC 1680 KXZE1 (FDC560+FDC560+FDC560) 168.0 kW



* With difference of length between the farthest indoor unit and the nearest one from the first branch pipe < 40 m (MAX 85 m)** Comply with installation conditions. For details, refer to the Technical Manual.

max. 0.4 m


Outdoor unit

max. 5 m

Indoor unit

Indoor unit

Indoor unit


Furthest IU 160 m



Operating range

Combinations



Models FDC1200KXZE1 FDC1250KXZE1 FDC1300KXZE1 FDC1350KXZE1 FDC1425KXZE1 FDC1450KXZE1 FDC1500KXZE1 FDC1560KXZE1 FDC1620KXZE1 FDC1680KXZE1

CombinationsFDC400KXZE1 FDC400KXZE1 FDC400KXZE1 FDC450KXZE1 FDC475KXZE1 FDC475KXZE1 FDC500KXZE1 FDC500KXZE1 FDC500KXZE1 FDC560KXZE1FDC400KXZE1 FDC400KXZE1 FDC450KXZE1 FDC450KXZE1 FDC475KXZE1 FDC475KXZE1 FDC500KXZE1 FDC500KXZE1 FDC560KXZE1 FDC560KXZE1FDC400KXZE1 FDC450KXZE1 FDC450KXZE1 FDC450KXZE1 FDC475KXZE1 FDC500KXZE1 FDC500KXZE1 FDC560KXZE1 FDC560KXZE1 FDC560KXZE1

Power supply Three-phase- 380-415V 50HzNominal Cool. capacity kW 120.00 125.00 130.00 135.00 142.5 145.00 150.00 156.00 162.00 168.00Cool. power consumption kW 32.88 35.9 38.92 41.94 41.94 41.93 41.91 44.56 47.21 49.86Rated energy efficiency coefficient in Cool. EER3 3.65 3.48 3.34 3.22 3.40 3.46 3.58 3.50 3.43 3.37Nominal Heat. capacity kW 135.00 140.00 145.00 150.00 159.00 162.00 168.00 175.00 182.00 189.00Heat. power consumption kW 32.07 33.88 35.69 37.5 39 39.49 40.47 42.93 45.39 47.85Rated energy efficiency coefficient in Heat. COP3 4.21 4.13 4.06 4.00 4.08 4.10 4.15 4.08 4.01 3.95Rated current in Cool. A 52.50 57.40 62.30 67.20 67.80 67.80 67.80 72.10 76.40 80.70Rated current in Heat. A 52.50 55.40 58.30 61.20 63.00 63.80 65.40 69.40 73.40 77.40

Indoor System Units Number of connectable IU from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80Total connectable capacity* 600 ~ 1560 625 ~ 1625 650 ~ 1690 675 ~ 1755 713 ~ 1852 725 ~ 1885 750 ~ 1950 780 ~ 2080 810 ~ 2106 840 ~ 2184Net weight kg 951 951 951 951 1110 1110 1110 1110 1110 1110

Diameter cooling/refrigerant pipes mm (inch) Liquid side: ø19.05 (3/4”)mm (inch) Gas side: ø38.1 (1.1/2”) (ø34.92 (1.3/8”)Oil equalisation mm (inch) ø 3/8” (9.52)


42~60HP (120.0~168.0 kW)

114

FDC 224 KXZXE1 22.4 kWFDC 280 KXZXE1 28.0 kWFDC 335 KXZXE1 33.5 kW




Connect up to 44 indoor units/200% capacity Connects up to 80 indoor units/160% (FDC 450 KXZE1 200%) capacity

Combinations 16~36HP (45.0~67.0 kW)

FDC 450 KXZXE1 (FDC224+FDC224)FDC 500 KXZXE1 (FDC224+FDC280)FDC 560 KXZXE1 (FDC280+FDC280)FDC 615 KXZXE1 (FDC280+FDC335)FDC 670 KXZXE1 (FDC335+FDC335)FDC 735 KXZXE1 (FDC224+FDC224+FDC280)FDC 800 KXZXE1 (FDC224+FDC280+FDC280)FDC 850 KXZXE1 (FDC280+FDC280+FDC280)FDC 900 KXZXE1 (FDC280+FDC280+FDC335)FDC 950 KXZXE1 (FDC280+FDC335+FDC335)FDC 1000 KXZXE1 (FDC335+FDC335+FDC335)

45.0 kW50.0 kW56.0 kW61.5 kW67.0 kW73.5 kW80.0 kW85.0 kW90.0 kW95.0 kW100.0 kW





max. 0.4 m


Outdoor unit

max. 5 m

Indoor unit

Indoor unit

Indoor unit


Furthest IU 160 m



Operating range

CHARACTERISTICS Hi-COP

› High efficiency

› Low consumption

› High energy savings

VRF Multi system KXZX Hi-COP series


Heat pump

FDC 224 KXZXE1 FDC 280~335 KXZXE1

8~12 HP (22.4~33.5 kW)

115

* When connecting the indoor units in the following series: FDK, FDFL, FDFU or FDFW, the power of the connectable indoor units cannot exceed 130%.

Combinations


Models FDC224KXZXE1 FDC280KXZXE1 FDC335KXZXE1Nominal Cool. capacity kW 22.40 28.00 33.50Cool. power consumption kW 4.98 6.95 8.68Seasonal energy efficiency index in Cool. SEER2 7.58 7.27 7.41Rated energy efficiency coefficient in Cool. EER3 4.50 4.03 3.86Nominal Heat. capacity kW 25.00 31.50 37.50Heat. power consumption kW 5.56 6.83 8.39Seasonal energy efficiency index in Heat. SCOP2 4.86 4.91 4.86Rated energy efficiency coefficient in Heat. COP3 4.50 4.61 4.47Power Three-phase- 380-415V 50HzRated current in Cool. A 8.7 11.7 14.7Rated current in Heat. A 9.6 11.7 14.3Sound level dB(A) 56 56 62External dimensions (hxlxd) mm 1690×1350×720 2048×1350×720Exterior appearance (Munsell colour) Stucco white (4.2Y7.5 / 1.16) equivalentNet weight kg 280 325 325Refrigerant circuit/Compressor type and qty. GTC5150NC47LF×1 GUC5185ND47V×1Motor kW 3.23*1 4.60*1 5.72*1Starting method Direct, in line

Indoor System Units Number of connectable IU from 1 to 29 from 1 to 37 from 1 to 44Total connectable capacity* 180 ~ 448 224 ~ 560 268 ~ 670Crankcase heater W 33*1 40*1 40*1Refrigerant circuit/Heat exchanger Pipes finned with Blue fin treatment and grooved internallyRefrigerant control Electronic expansion valveRefrigerant/GWP4 R410A/2088Quantity kg 11 11.5 11.5Tons of CO2 equivalent 22.97 24.01 24.01Refrigerant oil l 2.25 (M-MA32R) 2.9 (M-MA32R)Defrost control Micro -computerisedAir treatment/Fan type and quantity Axial fan x 2Motor W 386×2Starting method DirectAir flow (Standard) m3h 13200 13200 16800Available static pressure Pa Max 50Shock and vibration absorption Rubber vibration absorber (for compressor)Safety devices Compressor overheating protection/overcurrent/power transistor overheating protection/abnormal high pressure protection

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 3/8” (9.52) Liquid side ø 3/8” (9.52) Liquid side φ12.7 (1/2”)Gas side: ø19.05 (3/4”) Gas side ø 7/8” (22.22) Gas side: ø25.4 (1”) (ø22.22 (7/8”))Joining method Gas side: brazing / Liquid side: flareCondensate drain Drain holes: ø20 × 10pcs., ø45 x 3pcs.Piping insulation Necessary (on both sides, liquid and gas)Accessories - - -



* When connecting the indoor units in the following series: FDK, FDFL, FDFU or FDFW, the power of the connectable indoor units cannot exceed 130%.3. Value measured according to harmonised standard EN14511.

Models FDC450KXZXE1 FDC500KXZXE1 FDC560KXZXE1 FDC615KXZXE1 FDC670KXZXE1 FDC735KXZXE1

CombinationsFDC224KXZXE1 FDC224KXZXE1 FDC280KXZXE1 FDC280KXZXE1 FDC335KXZXE1 FDC224KXZXE1FDC224KXZXE1 FDC280KXZXE1 FDC280KXZXE1 FDC335KXZXE1 FDC335KXZXE1 FDC224KXZXE1

- - - - - FDC280KXZXE1Power supply Three-phase- 380-415V 50HzNominal Cool. capacity kW 45.00 50.00 56.00 61.50 67.00 73.50Cool. power consumption kW 10 11.8 13.9 15.6 17.4 17.1Rated energy efficiency coefficient in Cool. EER3 4.50 4.24 4.03 3.94 3.85 4.30Nominal Heat. capacity kW 50.00 56.0 63.0 69.00 75.00 82.50Heat. power consumption kW 11.1 12.3 13.7 15.2 16.8 18.2Rated energy efficiency coefficient in Heat. COP3 4.50 4.55 4.60 4.54 4.46 4.53Rated current in Cool. A 17.50 20.00 23.50 26.40 29.30 29.40Rated current in Heat. A 19.20 21.20 23.30 26.00 28.60 31.40

Indoor System Units Number of connectable IU from 2 to 60 from 2 to 53 from 2 to 59 from 2 to 65 from 2 to 71 from 3 to 78Total connectable capacity* 360 ~ 900 400 ~ 800 448 ~ 896 492 ~ 984 536 ~ 1072 588 ~ 1176Net weight kg 560 605 650 650 650 885

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 1/2” (12.7) Liquid side ø 5/8” (15.88) Liquid side ø 1/2” (12.7) Liquid side ø 5/8” (15.88)mm (inch) Gas side: ø28.58 (1.1/8”) Gas side: ø31.75 (1.1/4”) (ø34.92 (1.3/8”)Oil equalisation mm (inch) ø 3/8” (9.52)

Models FDC800KXZXE1 FDC850KXZXE1 FDC900KXZXE1 FDC950KXZXE1 FDC1000KXZXE1

CombinationsFDC224KXZXE1 FDC280KXZXE1 FDC280KXZXE1 FDC280KXZXE1 FDC335KXZXE1FDC280KXZXE1 FDC280KXZXE1 FDC280KXZXE1 FDC335KXZXE1 FDC335KXZXE1FDC280KXZXE1 FDC280KXZXE1 FDC335KXZXE1 FDC335KXZXE1 FDC335KXZXE1

Power supply Three-phase- 380-415V 50HzNominal Cool. capacity kW 80 85.0 90 95.0 100.0Cool. power consumption kW 19.3 21.1 22.7 24.3 25.9Rated energy efficiency coefficient in Cool. EER3 4.15 4.03 3.96 3.91 3.86Nominal Heat. capacity kW 90.0 95.0 100 106.0 112.0Heat. power consumption kW 19.7 20.6 21.9 23.5 25.1Rated energy efficiency coefficient in Heat. COP3 4.57 4.61 4.57 4.51 4.46Rated current in Cool. A 32.90 35.60 38.40 41.00 43.70Rated current in Heat. A 33.50 35.20 37.40 40.10 42.80

Indoor System Units Number of connectable IU from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80 from 3 to 80Total connectable capacity* 640 ~ 1280 680 ~ 1360 720 ~ 1440 760 ~ 1520 800 ~ 1600Net weight kg 930 975 975 975 975

Diameter cooling/refrigerant pipes mm (inch) Liquid side ø 5/8” (15.88)mm (inch) Gas side: ø31.75 (1.1/4”) (ø34.92 (1.3/8”) Gas side: ø38.1 (1.1/2”)Oil equalisation mm (inch) ø 3/8” (9.52)

116


rear

View of refrigerant connections

References for the dimensions of the holes of the fixing bolts

Incoming air

D (bottom)

C (front) C (right)

D (right)

C (rear)

D (front)





D (left)

C (bottom)

Drain pipe

Installation spaces

H3

H4H1Intake

Intake

Intak

e

H2

Intake


Ref. Item FDC224KXZXE1A Gas side pipe fitting ø 19.05 (3/4”) (brazing)B Liquid side pipe fitting ø 9.52 (3/8”) (flare)C Refrigerant pipe outlet ø 88 (or ø 100)D Power cable inlet ø 50 (right - left - front), slot 40 x 80 (at bottom)F Fixing bolt hole M10 x 4 holesG Condensate drain pipe connection ø 4 5 x 3 holesH Condensate drain ø 20 x 10 holesK Refrigerant oil compensation pipe connection ø 9.52 (3/8”) flareL Opening for movement 230 x 60




Heat pumpVRF Multi system KXZX Hi-COP series

FDC 224 KXZXE1

117


rearView of refrigerant connections


D (bottom)

C (front) C (right)

D (right)

C (rear)

D (front)





D (left)

C (bottom)

Drain pipe

Installation spaces

H3

H4H1Intake

Intake Intak

e

H2

Intake


Ref. Item FDC280KXZXE1 FDC335KXZXE1A Gas side pipe fitting ø 22.22 (7/8”) (brazing) ø 25.4 (1”) (brazing)B Liquid side pipe fitting ø 9.52 (3/8”) (flare) ø 12.7 (1/2”) (flare)C Refrigerant pipe outlet ø 88 (or ø 100)D Power cable inlet ø 50 (right - left - front), slot 40 x 80 (at bottom)F Fixing bolt hole M10 x 4 holesG Condensate drain pipe connection ø 45 x 3 holesH Condensate drain ø 20 x 10 holesK Refrigerant oil compensation pipe connection ø 9.52 (3/8”) flareL Opening for movement 230 x 60




FDC 280~335 KXZXE1

118

VRF Multi system KXZR 3-PIPE seriesHeat recovery

Simultaneous heating and coolingThese heat recovery systems work with 3 interconnecting pipes and therefore are commonly referred to as "3-pipe" systems. These systems offer both heating and cooling in a single indoor unit, based on the room conditions/requirements. The systems incorporate a highly sophisticated air conditioning control for multiple indoor areas, regardless of the cooling or heating needs, for applications where the building orientation (N, S, E, W) may result in a heat increase/loss on different sides of the same building.The range starts from a cooling capacity of 22.4 kW and goes up to 20HP with a cooling capacity of 56.0 kW. The outdoor units can also be combined in "pairs" or in "triple combination", reaching 60 HP/168.0 kW on a single system.

During defrost or during automatic compressor protection, activated every hour during heating, the heating operation stops and restarts temporarily after a specific time interval. The series is equipped with the same automatic compressor protection even in cooling mode. During this protection period, only the air flow is active and the cooling operation restarts at the end of a specific time interval.

DESIGN FLEXIBILITYTotal power of the indoor units

HP KXZR8~16 200%

17~34 160%36~60 130%

HP KXZRX16 200%

18~34 160%36 130%

• Where total power is higher than 130%, an additional refrigerant charge is required on site.

* With 8-34HP systems, if one or more of the FDK, FDFL, FDFU and/or FDFW series are connected to the system, the total power of the indoor units cannot exceed 130%.

Connectable indoor unitsIt is possible to connect up to 80 indoor units to the outdoor unit of greater power size. 16 different types of indoor units are available, visible or recessed, in different sizes, for a total of 91 overall possibilities.

Heat recovery systems

The KXZR series has an an extensible system design, considering a heating range at low temperature conditions down to -20°C, and a cooling range up to 46°C (previous model: 43°C).

HEATING

Cooling

The interconnection piping system has a unique arrangement with two of the interconnecting pipes passing through an PFD distribution controller and the third tube connected directly to each indoor unit from the main pipe path. This reduces installation times and the number of braze-welded connections on the site. The PFD distribution controllers are available for single connection or as a 4-way combined PFD connection, with each connected unit characterised by independent cooling or heating.

Outdoor unit

Wide operating range

CompressorAccumulator

Balanced cooling and heating operationReceiver

High pressure gas

Low pressure gas

Indoor unit Indoor unit Indoor unit Indoor unit

Flow divider

This model is not suitable for the use of annual cooling operations, for example for the server room, especially in areas where the outdoor air temperature falls below 5°C. In case of mixed operation in cooling and heating with outdoor air temperature lower than 5°C, the cooling power can decrease with respect to the operating power in cooling mode only.

NEW

119

VRF Multi system KXZR 3-PIPE seriesHeat recovery

Continuous control of the heating power reduces compressor frequency by modulating it at the minimum speed for a longer period of time. The total number of defrost cycles is considerably reduced, increasing the total power delivered and ensuring high comfort.

Improved cooling capacity at low outdoor temperatureThe small partitions of the exchanger and the internal pressure control allow the outdoor unit to operate in cooling mode even in low ambient temperature conditions, for greater capacity in very low environmental conditions (-5°C) compared to the previous model.

2-partition heat plate exchanger

KXZRE1

Exchanger resizing allows for better control of the pressure at low load regimes.

In the previous model, in the presence of a strong heating demands and simultaneous low cooling demands in low ambient temperature conditions, the pressure control is adjusted to maintain a greater heating power compared to a sufficient cooling power.The new heat exchanger and pressure control adopted in the KXZR series has simultaneously improved its capacity for both heating and cooling power *. * The cooling system has priority for the required heating mode compared to a very low cooling demand, where most of the indoor units are used in heating mode.

previous model

KXZRE1

Time

During simultaneous cooling and heating at an outside temperature of -5°C.

Continuous heating up to 5 hours without outside temperature constraints

CONTINUOUS HEATING POWER CONTROL

Delivery air temperature in the cooled room

Output temperature from indoor units °C

defrost defrost defrost

Traditional control


defrost defrost

Continuous control of heating power and overall increase of supplied power


Imperceptible temperature oscillation

300 minutes

Previous mode

The 4-partition heat exchanger reduces dimensions.

120

DIS-22-1-RG(RB)DIS-180-1-RG(RB)

DOS-2A-3-R

Single outdoor unit

YES

vertical

horizontal

floor

floor

floor

floor

NO

NO

YESBranch pipes Manifolds

HP 8 10 12 14 16 17 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60Liquid side

Furthest IU = 90 m

ø 12.7 ø 15.88 ø 19.05 ø 22.22Intake gas ø 22.22 ø 28.58 ø 34.92Delivery gas ø 15.88 ø 19.05 ø 22.22 ø 28.58

If the longest distance (measured between the outdoor unit and the furthest indoor unit) is 90 m or more (actual length), change the size of the main pipe according to the following table.

Even if the longest distance exceeds 90 m (actual length), it is not necessary to change the size of the exhaust gas pipes.

Heat recoveryVRF Multi system KXZR 3-PIPE series

REFRIGERANT CONNECTIONSVRF-T systems are manufactured to the highest standards of quality and reliability and it is therefore essential for the installation procedures and materials to have the same qualitative features, to ensure trouble-free long-term operation. It is advisable to use high quality copper refrigerant piping, in coils or in straight, semi-rigid lengths. The copper pipi

Date post:	02-Feb-2021
Category:	Documents
Upload:	others
View:	4 times
Download:	0 times

VRF MULTI SYSTEMScoolink-bg.com/wp-content/uploads/2018/12/MHI-vrf_multi... · 2018. 12. 26. · 80...

Documents