MINI CHILLER INVERTER H6
EnglishCL25622 to CL25628
MUENR-H6 / MUENR-H6T(10, 12, 14, 16 kW)
www.mundoclima.com
Installation & Owner's manualand information requirements
The following symbols are used in this publication and inside the unit:
User
Installer
Assistance
Important
Prohibition
Danger voltage
Danger moving blades
Danger high temperatures
INDEX
70°C
A
I
U
General warnings 2
Fundamental safety rules 2
Description of standard unit 3
Dimensioned drawings 4
Installation 4
Hydraulic connections 6
Electrical connections 9
Operation limits 14
15
17
Checking and starting up the unit 18
Activating and deactivating the unit 18
Shutting down for long periods 23
Routine maintenance 23
Extraordinary maintenance 23
U I A
U I A
I A
I
I
I A
I A
I A
I A
I A
A
U I A
A
A
A
Disposal 25A
Troubleshooting 25I A
1
against freezing 14I AProtection the water circuit
17I A
Hydraulic data Important information for the
28U I A used refrigerant
Information requirements 29U I A
Refrigerant circuit 17I A
of first installationFailure diagnosis at the momentFilling with water
Operating characteristics 24I A
27I A Specifications
GENERAL WARNINGS
When operating equipment involving the use of electricityand water,a number of fundamental safety rules must be observed,namely:
This appliance is not intended for use by persons (including children) with reduced physical,sensory ormental capabilities, or lack of experience and knowledge, unless they have been given supervisionor instruction concerning use of the appliance by aperson responsible for their safety.
Do not touch the unit with bare feet or with wet or damp parts of the bodyDo not carry out cleaning operations without first disconnecting the system from the electricity supply.
Do not modify safety or regulation devices withoutauthorisation and instructions from the manufacturer.
Do not pull,detach or twist the electrical cablescoming from the unit,even when disconnected fromthe mains electricity supply.Do not open doors or panels providing access to the internal parts of the unit without first ensuring that themains switch is in the off position.
Do not introduce pointed objects through the airintake and outlet grills.
Do not dispose of,abandon or leave within reach ofchildren packaging materials (cardboard, staples,plastic bags, etc.) as they may represent a hazard.
The chiller appliances are supplied without the main switch.The power supply to the unit must be disconnected using a suitable main switch that must be supplied and installed by the installer.
Respect safety distances between the unit and other equipment or structures.Guarantee adequate space for access to the unit for maintenance and/or service operations;Power supply:the cross section of the electricalcables must be adequate for the power of the unitand the power supply voltage must correspond withthe value indicated on the respective units.All unitsmust be earthed in conformity with legislation inforce in the country concerned.
Hydraulic connections should be carried out asindicated in the instructions to guarantee correctoperation of the unit.Empty the water circuit or addglycol if the unit is not used during the winter.Handle the unit with the utmost care to avoid damage.
FUNDAMENTAL SAFETY RULES
U AI
U AI
2
This unit is designed to cool/heat water and must be
Incorrect installation,regulation and maintenance orimproper use absolve the manufacturer from allliability,whether contractual or otherwise,for damageto people,animals or things.Only those applicationsspecifically indicated in this list are permitted.Read this manual carefully.All work must be carriedout by qualified personnel in conformity withlegislation in force in the country concerned.
The guarantee is invalidated if the above instructions are not respected and if the unit is started up for the
first time without the presence of personnel authorised by the Company (where specified in thesupply contract) who should draw up a “start-up” report.
The documentation supplied with the unit must beconsigned to the owner who should keep it carefullyfor future consultation in the event of maintenance ofservice.
All repair or maintenance work must be carried outbythe Company’s Technical Service or qualifiedpersonnel following the instructions in this manual.The air-conditioner must under no circumstances bemodified or tampered with as this may create situations of risk.Failure to observe this conditionabsolves the manufacturer of all liability for resultingdamage.
used in applications compatible with its performancecharacteristics, i.e. residential or commercial applicationscombined with a fan coil unit, low temperature radiatorsand underfloor heating. It should never be used forunderfloor cooling, as doing so may damage the plateheat exchanger.
DESCRIPTION OF STANDARD UNITAI
1
5
7
8910
11
1213141516171819
2
34
6
1 Operation panel2 Water manometer3 Automatic discharge valve4 Axial-flow fan5 Differential pressure switch6 Condenser7 Accumulater8 Security discharge9 Electric expansive valve10 Plate heat exchanger11 Electrical panel12 High pressure switch13 4-ways valve14 Expansion tank15 Pump16 Low pressure switch17 Storage tank18 Compressor19 Water supply valve
3
These air cooled reverse-cycle chillers with axial-flow fansoperate with refrigerant fluid and are suitable for outdoorinstallation.They are factory tested and on site installation is limited towater and electrical connections.
STRUCTUREPanels and base are made from galvanised steel platepainted with epoxy powder to ensure total resistance toatmospheric agents.Condensate collection pan asstandard.
COMPRESSORSHermetic DC inverter compressor with crankcase heater and thermal cut-out .
EVAPORATORAISI 316 stainless steel plate type evaporator completewithelectric heater and water flow switch.Casing lined with anti-condensate closed cell neoprenecladding.
PUMPSThe units feature a pump with the moving parts in contactwith the water made from corrosion resistant materials,extra wear ring on the impeller,built-in capacitor for highstarting torque and automatic venting of impeller chamber.
PUMP ASSEMBLY Pump assembly with expansion tank,safety valve,auto-water replenishing assembly,pressure gauge and pump.
CONDENSING COILS Made from copper tubes and high surface area aluminiumfins.Condensing coil protection grills as standard.
FANSAxial-flow fans.DC motor with built-in thermal cut-out.Housed in aerodynamic tubes with accident prevention grill.
Device for operation with low outside air temperatures: continuous fan rotation speed control via condensing temperatures transducer.
POWER AND CONTROL ELECTRICAL PANELPower and control electrical panel constructed in accor-dance with IEC 204-1/EN60335-2-40.
OPTIONAL ACCESSORIES AND FUNCTIONS
- Additional pump- Remote alarm
- Remote shutdown (ON/OFF)- Remote cooling/heating
- Wire controller (CL92340)
Automatic discharge valve
DIMENSIONED DRAWINGS I
INSTALLATION
CHOICE OF INSTALLATION SITEBefore installing the unit, agree with the customer the sitewhere it will be installed,taking the following points intoconsideration:-check that the fixing points are adequate to support theweight of the unit;-payscrupulous respect to safety distances between the unit and other equipment or structures to ensure that airentering the unit and discharged by the fans is free tocirculate.
POSITIONINGBefore handling the unit,check the capacity of the liftingequipment used,respecting the instructions on the packaging.
Tomove the unit in the horizontal,make appropriate use ofa lift truck or similar,bearing in mind the weight distributionof the unit.To lift the unit,insert tubes long enough to allowpositioning of the lifting slings and safety pins in the feet onthe unit.
To avoid the slings damaging the unit,place protectionbetween the slings and the unit.Position the unit in thesite indicated by the customer.Place either a layer of rubber (min.thickness 10 mm) or vibration damper feet (optional) between the base and support surface.Fix the unit,making sure it is level and that there is easy access to hydraulic and electrical components.If the site of installation is exposed to strong winds,fix the unit adequately to the support surface using tie rods if necessary.If a heat pump unit is being installed,make sure the condensate is drained using the drain hose supplied as standard.Prevent leaves,branches or snow from accumulating around the unit.These could reduce the efficiency of the unit.
I
1327
900970
600
348
320
400
360
4
� � Since the gravity center of the unit is not at its physical center, so please be careful when lifting it with a sling.
Never hold the inlet of the outdoor unit to prevent it from deforming.
Do not touch the fan with hands or other objects.
Do not lean it more than 45 , and do not lay it sidelong.
Make concrete foundation according to the specifications of the outdoor units.
Fasten the feet of this unit with bolts firmly to prevent it from collapsing in case of earthquake or strong wind.
>60
cm
Fix with bolt
Single unit installation
>300
>600
>300
>200
0
(Wall or obstacle)
Maintainchannel
Air outlet
Air inlet
Air inlet
Parallel connect two units or above
>600
>2000
>300
Parallel connect the front with rear sides
>2000 >500 >3000 >3000 >300
All the pictures in this manual are for explanation purpose only. They may be slightly different from the air conditioner you
purchased (depend on model).The actual shape shall prevail.
INSTALLATION SPACE
5
>200
0
HYDRAULIC CONNECTIONS
The choice and installation of components is the responsi-bility of the installer who should follow good workingpractice and current legislation.Before connecting thepipes,make sure they do not contain stones,sand,rust,dross or other foreign bodies which might damage theunit.Construction of a bypass is recommended to enablethe pipes to be washed through without having to discon-nect the unit (see drain valves).The connection pipingshould be supported in such a way as to avoid it weighingon the unit.It is recommended that the following devicesare installed in the water circuit of the evaporator.
1.Two pressure gauges with a suitable scale (inlet andoutlet).
2.Two vibration damper joints (inlet and outlet).3.Two gate valves (normal in inlet and calibrating in outlet).4.A flow switch (inlet) or a differential pressure switch
(inlet-outlet).5.Two thermometers (inlet and outlet).6.An inlet filter as close as possible to the evaporator and
7. An energy-saving water tank.8. Additional pump.
positioned to allow easy access for routine maintenance.
A hydraulic safety valve shall be mounted in water system, which should open constantly. 9. The connecting line of flow switch, which mounted
outside the unit, should be connected in series with the pressure-difference switch, which mounted inside the unit.
1
Factory Connections Site Connections
A
F
WATER INLET
WATER OUTLET
3
4
7
2
5
6
8
9
10
10
11
12
14
13
11
6
9
9
1 Plate Heat Exchange2 Differential Pressure Switch3 Automatic Discharge Valve4 Expansion Tank5 Auto-watet replenishing6 Circulating Pump7 Pressure Gauge
8 Safety Valve9 Drain/Chemical Washing Valve10 Flexible Joint11 Thermometer12 Calibrating Valve13 Y-shaped Filter14 Water Flow Switch
7
7
6
AI
� �
The chillers must be providedwith a filling/top-upsystem connected to the return line and a drain cockin the lowest part of the installation.Installationscontaininganti-freeze or covered by specific legisla-tion must be fitted with hydraulic disconnectors.
The manufactureris not liable for obstruction,breakage or noise resulting from the failure to installfilters or vibration dampers.Particular types of waterused for fillingor topping up must be treated withappropriate treatment systems.For reference values,see the table.
FILLING THE INSTALLATION-Before filling,check that the installation drain cock is closed.-Open all installation and terminal air vents.-Open the gate valves.-Begin filling,slowly opening the water filling cock outside the unit.-When water begins to leak out of the terminal air ventvalves ,close them and continue filling until the pressuregauge indicates a pressure of 1.5 bars.
If the installation requires a useful head higher than thatobtained by installing a pump assembly and storage tank,it is recommended that an additional pump is installed on the unit. Provided the additional pump installed inside of unit(only model 12/14/16KW can be installed inside of unit), the pump must connected close to plate heat exchanger. Provided the pump installed outside of unit,the pump shall be connected at water pipe’s outlet.The pump can be easily installed on the unitby removing the pump connection pipe (see page 3). Connect to terminal PL,PN on the electrical panel.
SIZE AND POSITION OF CONNECTIONS
The installation must be filled to a pressure ofbetween 1 and 2 bars.It is recommended that this operation be repeatedafter the unit has been operating for a number ofhours.The pressure of the installation should bechecked regularly and if it drops below 1 bar,thewater content should be topped-up.Checkthe hydraulic tightness of joints.
EMPTYING THE INSTALLATION-Before emptying,place the mains switch in the “off ” position-Make sure the installation fill/top-up water cock is closed-Open the drain cock outside the unit and all the installationand terminal air vent valves.
If the fluid in the circuit contains anti-freeze,it shouldnot be allowed to drain freely as it is pollutant.Itshould be collected for possible reuse. When drainingafter heat pump operation,take care as the watermay be hot (up to 50°).
an all-pole disconnection device which has at least 3mm separation distance in all pole and a residual current device (RCD) with the rating of above 10mA shall be incorporated in the fixed wiring according to the national rule the appliance shall be installed in accordance with national wiring regulations.
EF
C D
BA
water outlet
auto-waterreplenishing orifice
security water inlet
discharge
Model A (mm)
B (mm)
C (mm)
D (mm)
E (mm)
F (mm)
Water inlet/outlet
(Ø)
Auto-water replenishing (Ø)
Security discharge (Ø)
300 195 155 105 68 105 R5/4 G1/2 G1/2 10 to 16kW
7
(1 1/4")
3 Auto-watet replenishing orifice4 Water outlet of safety Valve5 Wire hole
2 Water outlet (1 1/4")1 Water inlet (1 1/4")
� � kW is the unit for cooling capacity, L is the unit for (G)
Comfortable type air conditioner
G= cooling capacity×2.6L
Process type cooling
G= cooling capacity×7.4L
In certain occasion (especially in manufacture cooling process), for conforming the system water content requirement, it’s necessary to mount a tank equipping with a cut-off baffle at the system to avoid water short-circuit, Please see the following schemes:
Error Recommendation
Error Recommendation
Minimum chilled water flow The minimum chilled water flow is shown in the below table.
If the system flow is less than the minimum unit flow rate the evaporator flow can be recalculated, as shown in the diagram.
DESIGN OF THE STORE TANK IN THE SYSTEM
minimum water flow volume in the formula.
CHILLER WATER FLOW
Evaporator
Recirculation
For minimum chilled water flow rate
Maximum chilled water flow The maximum chilled water flow is limited by the permittedpressure drop in the evaporator. It is provided in the below
If the system flow is more than the maximum unit flow rate, bypass the evaporator as shown in the diagram to obtaina lower evaporator flow rate.
For maximum chilled water flow rate
Evaporator
Recirculation
Minimum and maximum water flow rates
Item Water flow rate(m3/h)
Model
1.541.72 2.11 1.93 2.36
2.24 2.73
1.89
Minimum Maximum
16kW
may cause much sediment, such as furring, sand, and so on.
water equipment before flowing into chilled water system. Ifsand and clay settle in the evaporator, circulation of chilled water may be blocked, and thus leading to freezing accidents;
dness of chilled water is too high, furring may occur easily,Therefore, the quality of chilled
analyzed before being used, such as PH value,conductivity, concentration of chloride ion, concentration of sulfide ion, and so on.
WATER QUALITY CONTROL
When industrial water is used as chilled water, little furring may occur; however, well water or river water, used as chilled water,
Therefore, well water or river must be filtered and softening
if harand the devices may be corroded. water should be
PH
Total hardness
Electrical conductivity less than 200 mV/cm (25C)
Sulfide ion
Chlorine ion
Ammonia ion
Sulfate ion
Silicon
Total iron
Sodium ion
Calcium ion
PH 6 - 8
less than 50 ppm
none
less than 50 ppm
none
less than 50 ppm
less than 30 ppm
less than 0.3 ppm
No requirement
less than 50 ppm
table.
- Before filling, check that the installation drain cock is closed. - Open all installation and terminal air vents. - Open the gate valves. - Begin filling, slowly opening the water filling cock outside
- When water begins to leak out of the terminal air vent valves,close pressure gauge indicates a pressure of 1.5 bars.
the unit.
FILLING THE INSTALLATION
EMPTYING THE INSTALLATION
- Before emptying, place the mains switch in the off position. - Make sure the installation fill/top-up water cock is closed. - Open the drain cock outside the unit and all the installation
and terminal air vent valves.
8
14kW
10kW12kW
ELECTRICAL CONNECTIONS
The unitary minichillers leave the factory already wired, and require the installation of an omnipolar thermal overload switch,a lockable mains disconnecting switch forthe connection to the mains power supply,and the connec-tion of the flow switch to the corresponding terminals.Allthe above operations must be carried out by qualified per-sonnel in compliance with the legislation in force.
For all electrical work,refer to the electrical wiring diagramsin this manual.You are also recommended to check:-that the characteristics of the mains electricity supply areadequate for the absorptions indicated in the electricalcharacteristics table below,also bearing in mind the pos-sible use of other equipment at the same time.
Power to the unit must be turned on only afterinstallation work (hydraulic and electrical) has beencompleted.All electrical connections must be carried out byqualified personnel in accordance with legislation inforce in the country concerned.Respect instructions for connecting phase, neutral and earth conductors.The power line should be fittedupstream with a suitable device to protect against short-circuits and leakage to earth, isolating the installation from other equipment.
Voltage must be within a tolerance of ±10% of therated power supply voltage for the unit (for threephase units,the unbalance between the phases must not exceed 3%).If these parameters are notrespected,contact the electricity supply company.For electrical connections,use double insulationcable in conformity with current legislation in thecountry concerned
An omnipolar thermal overload switch and a lock-able mains disconnecting switch,in compliance withthe CEI-EN standards (contact opening of at least3mm),with adequate switching and residual currentprotection capacity based on the electrical datatable shown below,must be installed as near aspossible to the appliance
The devices on the unit must be lockable.An efficient earth connection is obligatory.Failure toearth the appliance absolves the manufacturer ofall liability for damage.In the case of three phase units,ensure the phasesare connected correctly.
Do not use water pipes to earth the unit.
AI
ELECTRICAL PANELThe electrical panel is located inside the unit at the top ofthe technical compartment where the various componentsof the refrigerant circuit are also to be found.To access the electrical panel,remove the front panel ofthe unit by undoing the screws.
9
Electrical panel
AB
10
ELECTRICAL POWER CONNECTIONSThe Specification of Power
The power cord type designation is H07RN-F.
The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active(phase) conductors.
� �
For the functional connection of the unit,bring the powersupply cable to the electrical panel inside the unit and con-nect it to terminals L-N and respecting the (L) phase,(N) neutral and earth in the case of single phase units(220-240V~50Hz),or L1-L2-L3 phases,N neutral and PE earth in three phase units (380-415V 3N~ 50Hz).
Dealer provides power cord.
For MUENR-10/12-H6: For MUENR-12/14/16-H6T:
AC 220-240V 50Hz
L N
Residual CurrentCircuit-breaker
GND
Residual CurrentCircuit-breaker
GNDA B C N
NOTE: The outdoor units must be installed with an Residual Current Circuit-breaker near the power supply
and must be effectively earthed.
For MUENR-10/12-H6:
For MUENR-12/14/16-H6T:
31 2 64 5 7 8 9 10 11
Additional Wire Controller
ON/OFF Cooling - Heating K JR-120F1/BMK -ERemote Alarm
Remote RemotePUMP
AUXILIARY CONNECTIONSAll terminals referred to in the explanations below are tobe found on the terminal board inside the electrical paneland described as “installer terminals”.
MODEL
POWER
CIRCUIT BREAKER/FUSE (A)
POWER WIRING(mm2)
PHASE
FREQUENCY AND VOLT
40/35
220-240V~, 50Hz 380-415V~, 50Hz
1-PHASE
3x6.0
30/25
3-PHASE
5x4.0
MUENR-10-H6MUENR-12-H6
MUENR-12-H6TMUENR-14-H6TMUENR-16-H6T
31 2 64 5 7 8 9 10 11
Additional Wire Controller
ON/OFF Cooling - Heating K JR-120F1/BMK -ERemote Alarm
Remote RemotePUMP
� �
1 2
Additional pump
LN 220-240V
220-240VLN A1
A2AC contactor
Main control board
Additional pump terminal (1 - 2) only provides passive
Additional water pump must be controlled by the AC
a. Additional pump
d. Remote alarm
3 4
Main control board
Remote alarm terminal only provides passive
Current passing through the terminal interfaceshould less than 1.5A, other wise please useAC contactor to control load indirectly.
b. Remote shutdown (ON/OFF)
5 6
SWITCH If switch is closed, the unit will be stopped forcibly. Under this circumstance, anti-frozen protection and otherprotecion functions are still effective. If switch breaks, unit can run normally according settings.
switching signal.
If switch 2 is closed, the unit will shift to heating mode forcibly; If switch 2 breaks, the unit will shift to cooling mode forcibly.
c. Remote cooling / heating
SWITCH 2
7 8
e. Wire controller (optional CL92340)
9 10 11
PP Q E
The wired controller KJR-120F1/BMK-E is optional. Please use 3-core shielded wire to connect the wired
grounded.
parameters and inquiry, can’t be used to set mode and
controller and the shielding layer must be When connecting wired controller, outdoor unit control
used for display which can check panel is mainly
temperature.
Note:
Note:
Note:
Note:
contactor.
switching signal.
11
KJR-120F1/BMK-E
NOTE ● Remote shutdown and Remote cooling/heating is optional function. ● Choose this function by DIP switch SW4 or SW3.
(Factory default)
● When the remote control and wire controller used at the same time, the unit will carry out the last command of arbitrary terminal. ● Remote shutdown has the highest priority. In the status of remote shutdown, other controllers can’t start the unit.
ON ONWith remotecontrol
SW4 SW4
10/12-H6ON
SW3
12/14/16-H6T 10/12-H6 12/14/16-H6TON
SW3
Withoutremotecontrol
WIRING DIAGRAM
MUENR-10/12-H6
12
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12
34
31
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GREEN
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14
Air conditioner operating conditionsFor proper performance, run the air conditoner under the following temperature conditions
If air conditioner is used beyond the above conditions, safely protection features may come into operation
Thermal head min.- max. 4-6
Water circuit pressure (bars) 1-3
Max.storage temperature 55
Water and glycol solutions used as a thermal During winter leaving the unit unused, please drain water out completely from unit if no antifreeze werecharged into pipeline, or keep power on(at standbyor off status) and ensure that water is contained inside of unit.When ambient temperature lower 5 running cooling mode must be charged antifreeze. Refer to upper parameters for the charged volume.
vector in the place of water reduce the performanceof the unit. Multiply the performance figures by thevalues given in the following table.
FOULING FACTORSThe performance data given refer to conditions with cleanevaporator plates (fouling factor=1).For different foulingfactors,multiply the figures in the performance tables bythe coefficient given in the following table.
OPERATION LIMITS AI
Outdoor temperature: -5 ~Cooling operation
Water outlet temperature: 4 ~
Outdoor temperature: -15 ~Heating operation
If air conditioner is used beyond the above conditions, safely protection features may come into operation
Note: When the outdoor temperature is too low, the unit in standby mode will activate frost protection, forced to run pumps or forced heating operation to protect the unit water system.
����I�G M���
DELIVERY WATER TEMPERATURE
OUT
SIDE
AIR
TEM
PERA
TURE
35 54
-15
0
27
t(°C)
t(°C)40
C���G M���
DELIVERY WATER TEMPERATURE
OUT
SIDE
AIR
TEM
PERA
TURE
4 7 15 20
-5
35
46
t(°C)
t(°C)
Water outlet temperature: 30ºC~54ºC
Cooling capacitymodification
Power modification
Water resistance
Water flow modification
0 1.000 1.000 1.000 1.000 0.00010 0.9�4 0.99� 1.11� 1.019 -4.00020 0.973 0.995 1.26� 1.051 -9.00030 0.965 0.992 1.4�2 1.092 -16.00040 0.960 0.9�9 1.791 1.145 -23.00050 0.950 0.9�3 2.100 1.200 -37.000
Modification coefficient Quality ofglycol/%
Freezingpoint/
0 1.000 1.000 1.000 1.000 0.00010 0.976 0.996 1.071 1.000 -3.00020 0.961 0.992 1.1�9 1.016 -7.00030 0.94� 0.9�� 1.3�0 1.034 -13.00040 0.93� 0.9�4 1.72� 1.07� -22.00050 0.925 0.975 2.150 1.125 -35.000
Modification coefficientCooling capacity
modificationPower
modificationWater
resistanceWater flow
modification
Quality ofglycol/%
Freezingpoint/
If no glycol is added, the water must be drained out when there is a power failure.
PROPYLENE GLYCOL
ETHYLENE GLYCOL
PROTECTION THE WATER CIRCUIT AGAINST FREEZING AI
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
Exte
rnal
Sta
�c P
ress
ure
(KPa
)
Flow (m3/h)
Ⅲ���������
Ⅱ� ���������
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f1 capacity correction factorfk1 compressor power input correction factor
4.4 x 10-5
0.86 x 10-4
1.72 x10-4
-0.960.93
-0.990.98
-0.990.98
Fouling factors(m2 °C/W) f1
Evaporatorfk1 fx1
If the total water volume in the system is less than the value in the table above, the additional water tank is necessary in order to avoid the compressor On and Off frequently.The minimum size of the water tank is calculated as:Size of additional water tank(L) = Minimum water volume(L) - Actual water volume(L)
HYDRAULIC DATAI AUSEFUL PUMP HEAD CURVES (10 to 16 kW)
(*) To obtain the useful head of the installation,subtract the pressure drop of the plate heat exchanger.
Constant speed I,II.III
p/kPa
��
60
40
20
0
0
0
0
��
40
00 1 2 3 4
P 1/W
0.2 0.4 0.6 ��� 1.0 1.2 Q/l/s
Q/m3/h
16 Q/lgpm
1 2 3 40
2
4 � 12
4
6
�
4640 1/min
2970 1/min
1270 1/min
Max.
H/m
RS25/7.5 RKC1~230V-Rp1 1/4
Q/m3/h
15
HEAT EXCHANGER PRESSURE DROP (WATER SIDE)
MUENR-10-H6
MUENR-12-H6 / MUENR-12-H6T
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
Exte
rnal
Sta
�c P
ress
ure
(KPa
)
Flow (m3/h)
Ⅲ���������
Ⅱ� ���������
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MUENR-14-H6T
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
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ure
(KPa
)
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fx1 total power input correction factor
� �� �� �
16
MUENR-16-H6T
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
Exte
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Sta
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ress
ure
(KPa
)
Flow (m3/h)
Ⅲ���������
Ⅱ� ���������
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PUMP LED DIAGNOSIS AND SOLUTIONSThe pump has an LED operating status display. This makes it easy for the technician to search for the cause of a fault in the heating system.
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AI
1 Compressor2 4-Way Valve3 Accumulatior4 Air Side Heat Exchanger5 Electronic Expansion Valve6 Storage Tank7 Strainer8 Water Side Heat Exchanger (Plate Heat Exchange)
9 Differential Pressure Switch10 High Pressure Switch11 Low Pressure Switch12 Discharge Gas thermistor13 thermistor For Outdoor Temperature14 Thermistor For Evaporation In Heating (Thermistor For Condenser In Cooling)15 Thermistor For Plate Heat Exchange 116 Thermistor For Plate Heat Exchange 2
17 Thermistor For Water Outlet18 Thermistor For Water Inlet19 Automatic Discharge Valve20 Expansion Tank21 Circulating Pump22 Pressure Gauge23 Safety Valve24 Auto-watet replenishing
17
LP
HP
1 3
10
2
4
67 75
8
11
9
12
13
14
15
16
17
18
CoolingHeating
19 20
21
22 23
24A
AI REFRIGERANT CIRCUIT
�����������������������������������������������!�������������������� check for any of the following abnormalities before diagnosing possible error codes.�������"�����������������������������#$�������������������������� and between unit and user interface).�������&���������������'+;�������<��$�����
�������������������������������= =�����������������!���������� a possibility that there is air in the system, or the water level in the system is less than the required minimum.��������������������� is displayed on the user interface, check the wiring between the user interface and unit.
AI FAILURE DIAGNOSIS AT THE MOMENT OF FIRST INSTALLATION
1. Connect the water supply to the fill valve and open the valve.2. Make sure the automatic air purge valve is open (at least 2 turns).3. Fill with water until the manometer indicates a pressure of approximately 2.0 bar. Remove air in the circuit as much as possible using the air purge valves. Air present in the water circuit might cause malfunctioning of the backup heater.
Do not fasten plastic cover on the air purge valve at the topside of the unit when the system is running. Open air purge valve, turn anticlockwise at least 2 full turns to release air from the system.
During filling, it might not be possible to remove all air in the system. Remaining air will be removed through the automatic air purge valves during the first operating hours of the system. Topping up the water afterwards might be required.���&�������������������������������������������������<���� depending on the water temperature (higher pressure at higher water temperature). However, at all times water pressure should remain above 0.3 bar to avoid air entering the circuit.���&�������������������>������������������������������� pressure relief valve.���?�����@������������$���������������=����"���B�������������J���=
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FILLING WITH WATER
18
CHECKING AND STARTING UP THE UNIT
PREPARING FOR FIRST START UPRestarting after shutting down for long periodsThe chiller must be started up for the first time by theTechnical Service.Before starting up the chillers,make sure that:-All safety conditions have been respected-The chiller is adequately fixed to the surface it rests on-Functional distances have been respected;-Hydraulic connections have been carried out as indicated in the instruction manual-The water circuit is filled and vented.When draining afterheat pump operation,take care as the water may be hot;
-The water circuit valves are open-Electrical connections have been carried out correctly-Voltage is within a tolerance of 10% of the rated voltage for the unit-The unit is correctly earthed-All electrical and hydraulic connections are tight and havebeen completed correctly.
To complete the electrical connections:- Remove the inspection panel by unscrewing the five screws
- Use grommet Afor the electrical power cable andgrommet Bfor the other external wires.
AB
tes
123
3 To access the control panel,open the door:-remove the screw 1 and screw 2;-lift the door 3.
The front panel of the device functions as the user interface and is used to perform all operations relating to the device.I.Icon Description
ACTIVATING AND DEACTIVATING THE UNIT U AI
7.112 13 14 15 16
1718
11
7.2
19
2024
23
21
22
A
19
NO. Icon Description
Outside heat source running icon (Reserved)
Clock iconIt will display when finish setting the clock and be extinguished when the clock setting work is done.Timing on function icon will flicker when setting timing on. The icon will be constantly light when finish setting.
Timing off function icon will flicker when setting timing off. The icon will be constantly light when finish setting.Breakdown light iconWhen the unit is broken down or under protection, this icon will flicker and will be extinguished when malfunction and protection are eliminated.Compressor booting indicator iconWhen booting the compressor, this icon will be constantly light. It will be extinguished when the compressor is shut downE-heater booting indicator icon ReservedWhen booting the external E-heater, this icon will be constantly light. It will be extinguished when the external E-heater is shut down.Fan booting indicator iconWhen booting the fan, this icon will be constantly light. It will be extinguished when the fan is shut down.Water pump booting indicator icon When booting the water pump, this icon will be constantly light. It will be extinguished when the water pump is shut down.Auto-lock (unlock) function iconIf don't operate the controller in 60s, the keyboard will lock automatically. Press " " and " "
Temperature unit iconWhen the control panel displays temperature, this icon will be constantly light.
Cooling mode icon This icon will be constantly light when customers choose cooling mode.Heating mode iconThis icon will be constantly light when customers choose heating mode.Water pump mode iconThis icon will be constantly light when customers choose water pump mode.Force cooling iconThis icon will be constantly light when customers choose force cooling mode.Power off iconThis icon will be constantly light when customers choose Power off mode.Clock icon, the middle“ ” flicker once every 1s. It will display time when customers set the timer.
The last 2 digits of the nixie tube “ ” icon.If “ ” is constantly light, it will display the current inlet water temperature. Its unit is .When customers do water temperature set, icon will display the set water temperature. When checking, “ ” will display the result of checking.When water heating is broken down or in protection, “ ” display the error code and protection code.
11
12
13
15
14
16
17
Current unit iconWhen the control panel displays current, this icon will be constantly light.
18
Time format iconThe unit is 12-hour format. “ ”will be constantly light when it is forenoon.“ ” will be constantly light when it is afternoonFrequency unit iconIt will be constantly light when the control panel displays frequency of the compressor.ON/OFF and OK button1.Long press “ ” for 3S will power on or off the controller.2.Press “ ” to confirm the former operation when finishing the setting work.Mode choice function/Function choice/Back function button1.Mode choice function. Choose operation mode.2.Function choice. Long press it for 3s to enter function setting in the main interface.(Clock setting, Timing on and timing off setting)3.Back to the previous menu. Long press it for 3s to back to previous menu in the function setting interface. Top menu is the main interface.
19
21
22
20
7.1
7.2
simultaneously for 3s to unlock.
20
II.Control panel operation description
1) ON/OFF Operation mode one: Power off: Long press “ ” for 3s in the main interface. The panel displays “OFF” and other icons will be extinguished. The unit stops. Power on: When the display panel shows “OFF”, long press “ ” for 3s and wait for the unit to enter standby mode. Then power on the unit according to Operation mode two.
Operation mode 2: Power off: Press “ ” in the main interface to enter mode choice function and the icon which indicate the current mode will flicker. Press “ ” circularly to choose power off mode, “ ” will flicker at this moment. Press “ ” button to confirm the power off mode. By this time, “ ” will be constantly light and the unit stops. Power on: In the power off mode, press “ ” to enter mode choice functionn. Press “ ” circularly to choose one kind of “power on” mode, the mode
“ ” to enter timing on setting. At this moment, last 2 digits of the nixie tube display “01” which means the first group setting begins. Press “ ” to the next step. By this time, mode icon will flicker and press “ ” to choose timing on mode. Press “ ” to confirm your choice and go to the next step. By this time, the last 2 digits of the nixie tube will flicker and press “ ” or “ ” to adjust temperature and set the temperature of the inlet water. Press “ ” to confirm and move to the next step. By this time, the first 2 digits of the nixie tube will flicker and press “ ” or “ ” to adjust time of timing on. Press “ ” to confirm and switch to minute setting automatically. The last 2 digits of the nixie tube will flicker and press “ ” or “ ” to adjust minute setting of timing on.(minimal unit of minute adjustment: 15 minutes) . Press “ ” to confirm. The first group setting is finished and “ ” will be constantly light. When processing the second timing setting, repeat the 1-2 operation above. When the nixie tube displays “01” and flicker, press“ ” or “ ” to choose the timing on group. When the nixie tube displays “ 02 ” which means setting timing on function of the second group. Refers the timing on setting operation of group 1 to set that of group 2. ● Long press “ ” for 3s to return to the previous interface to reset the parameter during setting clock timing.
icon will flicker at the moment. Press “ ” to confirm the power on mode. The unit will run as the chosen mode when the mode icon will be constantly light.
NO. Icon Description
Up1.(Value increase)2.Forward to the previous interface.Down1.(Value decrease)2.Backward to the next interface.
23
24
3) Clock setting Long press “ ” for 3s to enter function interface. “ ” clock icon will flicker. Press “ ” to enter clock setting function. “ ” icon will be constantly light and the first 2 digits on nixie tube will flicker. Press “ ” or “ ” to set minute. Press “ ” when finish setting and “ ” will be extinguished.
4) Timing setting 1. Timing on setting Long press “ ” for 3s to enter function interface. “ ” clock icon will flicker. Press “ ” again to enter timing on function. “ ” will flicker and press
1-2 operation above. When the nixie tube displays “01” and flicker, press “ ” or “ ” to choose the timing off group. When the nixie tube displays “02”which means setting timing off function of the second group.
2.Timing off setting Long press “ ” for 3s in the main interface to enter function interface. Press “ ” circularly to enter timing off function. “ ” will flicker and press “ ” to enter timing off setting. At this moment, the last 2 digits of the nixie tube display “01” which means the first group setting begins. Press “ ” to the next step. By this time, the first 2 digits of the nixie tube will flicker and press “ ” or “ ” to adjust time of timing off. Press “ ” to confirm and switch to minute setting automatically. The last 2 digits of the nixie tube will flicker and press “ ” or “ ” to adjust minute setting of timing off. Press “ ” to confirm. The first group setting is finished and “ ” will be constantly light. When processing timing setting of group 2, repeat the
2) Mode choice and temperature settings Press “ ” in the main interface to enter mode choice function. The “Mode” icon will flicker. Click “ ” circularly to choose a mode. The circulating order is “Cooling mode”→“Heating mode”→“Water pump mode” →“Power off mode” → “Cooling mode”. The chosen mode will flicker. Press “ ”or “ ” to increase/decrease the temperature in the chosen mode. Press “ ” to confirm power off mode and the set temperature. Mode icon will be constantly light and the unit will run as the chosen mode. Press “ ” or “ ” in the main interface to increase/decrease the temperature in the chosen mode.
21
Refers the timing off setting operation of group 1 to setthat of group 2.
3.Cancel all timing on/off settings Long press “ ” for 3s to enter function interface. “ ” clock icon will flicker and press “ ” to choose the timing function. “ ” and “ ” flicker simultaneously means choosing to cancel all timing functions. Press “ ” to cancel timing settings. “ ” and “ ” both will be extinguished.
III.Functions of combination key 1.Force cooling Press “ ” and “ ” simultaneously for 3s in the main interface to enter into force cooling mode. The force cooling mode icon will be constantly light. Press “ ” button and “ ” button simultaneously for 3s to quit force cooling mode. The unit will enter power off mode automatically when quitting force cooling mode.
Quit parameter query function If there’s no operation in 20s when enter the
parameter query, it will quit automatically and return to the main interface. Press “ ” and “ ” simultaneously to quit parameter query manually.
2.Parameter query function To enter parameter query function Press “ ” and “ ” simultaneously for 3s to enter into the interface of parameter query function. At this moment, first 2 digits of the nixie tube will display sequence number and the last 2 digits is specific parameters. Press “ ” or “ ” to query the relative parameters. See query orders in Table 1-1.
Table.1-1 Query orders
3.Auto-lock (unlock) function If don’t operate the controller in 60s, the keyboard will lock automatically. Press “ ”and “ ” simultaneously for 3s to unlock.
Frequency
Mode
Display operating frequency when the unit is in cooling mode and heating mode.
0-Power off 1-water pump 2-cooling 3-heating 4-force cooling 5-force heating
No.
1
2
3
Content Remark
Wind speed level 0-Power off (1-7)
4 Total capacity requirements Capacity before revised (Force cooling displays 5)
6 Temp. set Cooling/heating temp. set
7 T3 Condenser temperature sensor
8 T4 Outdoor ambient temperature sensor
9 Tp Comp. Discharge temperature sensor
10 Tin Inlet water temperature sensor of plate heat exchanger
11 Tout Outlet water temperature sensor of plate heat exchanger
12 Tb1 Plate heat exchanger anti-freezing temperature sensor 1
13 Tb2 Plate heat exchanger anti-freezing temperature sensor 2
14 T6 Radiator surface temperature(reserved)
15 Unit operation current Unit operation current
16 Power supply voltage AD value Power supply voltage AD value
17 Opening of EXVModel
Version number
Step number *8
18
Err119
Err220
Err3
21
22
5 Capacity requirements after revised Capacity after revised (Force cooling displays 5)
(PCB has no such function)
(PCB has no such function)
(Operation panel has no such function)
(Operation panel has no such function)
4.Factory Reset: In main interface, long press “ENTER” for 3s, the unit will close and recovers to factory default mode.Display panel will display“OFF”
22
5.Error code and protection code shooting table:
Low pressure protection
Outdoor units current protection
E9
CP
CL
H0
E4
E5
E6
EA
Eb
C0
C1
F7
F8
PL
P1
EEPROM malfunction
Anti-idling protection of water pump
Low temperature protection in heating mode
Communication malfunction between the main controllingchip and IPDU
T3 T4 temperature sensor malfunction
Voltage protection
DC fan motor malfunction
Two times of E6 protection in 10 minutes(Recover when powering off)
Tin temperature sensor malfunction
Tout temperature sensor malfunction
Tb1 temperature sensor malfunction
Tb2 temperature sensor malfunction
Radiator high temperature protection
High pressure protectionP2
P3
IPM mode protection
Typhoon protection
Outdoor units anti-freezing protection
Flow switch malfunction
High temperature protection in heating mode
Defrosting
Oil return of compressor
P4
P5
P6
P8
Pb
C8
CH
dF
d0
d8
Compressor discharge temperature protection
Condenser high temperature protection
Evaporator high temperature protection in heating mode
Wired controller error code list KJR-120F1/BMK-E (CL92340):
EEPROM error code(Wire controller)
Two times of E6 protection in 10 minutes
Low temperature protection
in heating modeT3&T4 temperature sensor malfunction
Voltage protection
DC fan motor malfunction
EEPROM malfunction
5-minute error for heating mode fan
in area A
Tout temperature sensor malfunction
Tb1 temperature sensor malfunction
Tb2 temperature sensor malfunction
Flow switch malfunction
Communication malfunction between the main controlling chip and IPDU
Anti-idling protection of water pump
High temperature protection in heating mode
Tin temperature sensor malfunction
Typhoon protection
Radiator high temperature protection
Water inlet and outlet temp. difference too large protection
High pressure protection
Low pressure protection
Outdoor units current protection
Compressor discharge temp. Protection
Condenser high temperature protection
IPM mode protection
Outdoor units anti-freezing protection
E2 Communication error beetwen the wired controller and the chiller unit.
Remote contact ON/OFF is active
23
SHUTTING DOWN FOR LONG PERIODS
If it is previewed not to use the machine for long periodsAfter deactivating the chiller:-Make sure the model is in the Power off model " ", or alternatively disconnect the unit from the power supply.-Make sure the remote control switch is closed (if present) .-Close the water valves.
If there is a possibility that the outside temperaturemay drop below zero,there is the risk of freezing.The water circuit MUST BE EMPTIED AND SHUTOFF POWER (when draining after heat pump operation take care as the water may be hot)orantifreeze must be added in the proportionrecommended by the manufacturer.
Never perform any cleaning operations before having
CHEMICAL WASHINGYou are recommended to chemically wash the plate heatexchanger after every 3 years of operation.
REFRIGERANT GAS CONTENTThe chillers are filled R410A refrigerant gas and tested inthe factory.In normal conditions,there should be no needfor the Technical Assistance Service to intervene to checkthe refrigerant gas.However,over time,small leaks may
ROUTINE MAINTENANCE
Never perform any cleaning operations before having disconnected the unit from the mains power supply.If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.Regular maintenance is fundamental to maintain the efficiency of the unit both in terms of operation and energyconsumption.The Technical Assistance Service maintenance plan must be observed,with an annual service which includes the following operations and checks:-Filling of the water circuit-Presence of air bubbles in the water circuit-Efficiency of safety devices-Power supply voltage
-Power input-Tightness of electrical and hydraulic connections-Condition of the compressor contactor-Efficiency of the plate heat exchanger heater-Checking of operating pressure,superheating and subcooling-Efficiency of compressor heater-Cleaning of finned coil (*)-Cleaning of fan grills-Cleaning of condensate drain pan (if installed).(*) for “Heat pump” appliances,the checks are to be performed quarterly.For units installed near the sea,the intervals between maintenance should be halved.
EXTRAORDINARY MAINTENANCE
A
A
Adisconnected the unit from the mains power supply.
Draining of the circuit,causing the unit to function poorly. In thiscase, the leaks of refrigerant must be identified and repairedand the refrigerant circuit refilled.Proceed as follows- Empty and dry the entire refrigerant circuit using a
vacuum pump connected to the low and high pressuretap until the vacuometer reads about 10 Pa.Wait a coupleof minutes and check that this value does not rise to morethan 200 Pa.
-Connect the refrigerant gas cylinder or a filling cylinderto the low pressure line pressure gauge connection.
-Fill with the quantity of refrigerant gas indicated on therating plate of the unit..
-Always check the superheating and subcooling values.Inthe nominal operating conditions for the appliance,theseshould be between 5 and 10°C and between 4 and 8°Crespectively.
-After a couple of hours of operation,check that the liquidindicator indicates circuit dry (dry-green)
In the event of partial leaks,the circuit must becompletely emptied before being refilled.The R410a refrigerant must only be filled in theliquid state.Operating conditions other than nominal conditionsmay produce considerably different values.Seal testing or identification of leaks must only becarried out using R410a refrigerant gas, checkingwith a suitable leak detector.The refrigerant circuit must not be filled with arefrigerant other than that indicated on page 14.The use of a different refrigerant may cause seriousdamage to the compressor.Oxygen,acetylene or other inflammable orpoisonous gases must never be used in the refrige-rant circuit as they may cause explosion or poiso-ning.Oils other than those indicated on pages 14 mustnot be used.The use of different oils may causeserious damage to the compressor.
24
�
OPERATING CHARACTERISTICS AI
The set temperature refers to the set return water temperature or inlet temperature;In the event of a temporary power failure, when power returns, the mode set previously will be retained in the memory.
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If there is a possibility that the outside temperature may drop below zero,there is the risk of freezing.The water circuit MUST BE EMPTIED AND SHUT OFF POWER (when draining after heat pump operation take care as the water may be hot) or antifreeze must be added in the proportion recommended by the manufacturer.
������
����������������������������{�����|�}��℃ (default:12℃)If the set temperature is between 10~13℃, the compressor start and shut down according to the difference between the inlet temperature ����������������������������������
If the set temperature is between 14~20℃,the compressor start and shut down according to the difference between the inlet temperature ����������������������������������
�����������������������������{�������}��℃ (default:40℃)If the set temperature is between 35~44℃,the compressor start and shut down according to the difference between the inlet temperature ����������������������������������
If the set temperature is between 45~50℃,the compressor start and shut down according to the difference between the inlet temperature ����������������������������������
!��������""���"��������#���$In order to prevent the compressor frequent start and stop, the compressor must ensure that each start since the last stop since the minimum time of 300 seconds.
%���������������������#�����&��'�"'������������The electronic board includes two pumps control output. The pump 1 running 3 seconds, the pump 2 starts running. The pump 1 starts ��������������$����������������������������������������$������the compressor starts up and stops 120 seconds after the assembly shuts down.After the first 120 seconds of pump1 operation when the water flow meets the operating requirements, the water flow alarm functions are activated (differential pressure switch or flow switch). If the differential pressure switch (or flow switch) detects a continuous closure for 15 seconds, the unit can run normally, otherwise, it will shut down and �������+��������In the unit operation process, if the continuous 10 seconds to detect the differential pressure switch (or flow switch) is opened, the unit will �����������������������+��������
*��+���"���#��������For correct operation of the unit with different ambient temperatures, the microprocessor controls the fan speed based on the ambient temperature and the condensing or evaporation temperature as well as compressor frequency, thus enabling heat exchange to be increased and/or decreased, maintaining the condensing or evaporation temperature practically constant.
5��+��"�����7�����������������To prevent the water freezing and damaging the plate heat exchanger, the microprocessor will perform antifreeze protection program if the heat exchanger temperature or the water temperature below a certain temperature.���������������������������������������������������������������temperature or the outlet temperature sensor is less than 3℃, the compressor will shut down and the controller display Pb code, the water pump will continue to run until the heat exchanger �����������������������������������������������$�<���℃ and the unit will resume normal operation.$������������������������������$��������������������������������������������������������������������������������������℃, the controller display Pb code, the water pump will continue to run until the heat exchanger temperature or the inlet temperature sensor is above 15℃. If the heat exchanger temperature or the inlet temperature sensor continues to fall below 5℃, the unit will be forced heating operation, the compressor and the water pump will be running until the heat exchanger temperature or the inlet temperature sensor is above 15℃. ������������$������������������������������℃and the heat exchanger temperature or the inlet temperature sensor is less than 2℃, the electric exchanger temperature heating will turn on until the heat exchanger temperature or the inlet temperature sensor is above 7℃.
If the unit is likely to operate below 0℃, it is advisable to add antifreeze to the water system to prevent the unit from freezing the system in the event of a power cut off or failure.
8��+���������;�����������������������������������When the fin heat exchanger temperature over than 62°C, system will shut down, but not returns to normal operation until the temperature decreased less than 52°C.
<��������#�"�����������������������������If the compressor discharge temperature is more than 115℃,the compressor will be stop running until the temperature is lower than ��℃. The compressor starts with a 5 minute delay protection.
Tin-Ts
Tin-Ts
Tin-Ts
Tin-Ts
2
-1
on
off
2
-2
on
off
2
-2on
off
0
-4on
off
25
DISPOSALADo not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary
.
Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities.Contact you local government for information regarding the collection systems available.
If electrical appliances are disposed of in landfills or dumps,hazardous substances can leak into the groundwater and get into the food chain, damaging your health and well-being.
TROUBLESHOOTINGAI
No voltage
Supply voltage too low
Mains switch in OFF positionRemote switch (if present) in OFF positionControl panel set to OFFMain unit switch in OFF positionCompressor thermal solenoid switch OFF
- Check presence of voltage- Check safety systems upstream
tof he appliance
Check power line
Switch ON
Contactor coil faultyElectronic board faultyStart-up capacitor faulty (if present)Compressor faulty
Replace the component
FAULT CAUSE REMEDY
Check
Thermal cut-out tripped
Check
Check
Check
The compressor stopsdue to the activation ofthe protection devices
Excessive delivery pressureLow suction pressureLow voltageElectrical connections not sufficiently tightOperation outside permitted limits
Faulty operation of pressure switches
Check supply voltageCheck electrical insulation of windings
Replace the component
Insufficient outputInsufficient refrigerantSizing of unitOperation outside recommended limits
Noise and vibrations Contact between metal bodies
RepairWeak foundations
Tighten screwsLoose screws
Compressor noisy Liquid returning to compressorInadequate fixing
Reverse one phaseReversed phase (three phase units only)
The chiller does notstart up
26
FAULT CAUSE REMEDY
Low suction pressure(less than 5.0 bars)
Low utility water inlet temperatureLow external water inlet temperatureClogged water filterBlocked plate heat exchanger
Check
Low discharge pressure(less than 25 bars)
Low outside air temperatureLow water inlet temperature Check
Air in water circuit Vent air
Insufficient gas content Check
Moisture in the refrigerant circuit(liquid indicator - moisture yellow) Faulty fan control
Faulty fan control Check
High suction pressure(greater than 10 bars)
High outside air temperatureHigh inflow water temperature Check
High discharge pressure(greater than 36 bars)
High external water temperatureHigh water inlet temperature
Insufficient air flowInsufficient water flow
Check
Check fan operationCheck pump operation
Faulty fan regulation Check
Air in water circuit Ventair
Excessive refrigerant charge Check
27
SPECIFICATIONSAI16
���>�|�!��!���
14.5(3.5~15.5)
4700
7.7
3.10
16.0(3.7~17.0)
����
���
3.30
5900
10.1
R410A
3200
14
���>�|�!��!���
12.5(3.3~14.0)
3900
6.4
3.20
|���#���}|����
4250
7.0
3.25
5600
9.6
R410A
2900
12
���>�|�!��!���
11.2(3.1~12.0)
����
5.5
3.31
12.3(3.3~13.2)
3720
6.1
3.31
5200
���
R410A
����
12
220-240, 1, 50
11.2(3.1~12.0)
3500
15.4
3.20
12.3(3.3~13.2)
����
16.6
3.25
5200
26.0
R410A
����
10
220-240, 1, 50
10.0(2.9~10.5)
2950
13.0
3.39
11.0(3.1~12.0)
3140
|���
3.50
����
25.0
R410A
����
7
���#��|}����
2250
9.9
3.11
���#���}����
2500
11.0
3.20
3000
15.6
R410A
2500
5
���#|��}����
1550
���
3.23
6.2(2.1~7.0)
1900
���
3.26
����
14.6
R410A
2500
V-Ph-Hz
kW
W
A
W/W
kW
W
A
W/W
W
A
g
mm
mm
kg
°C
°C
Capacity
rated Input
rated current
EER
Model
Power supply
Cooling
Heating
Capacity
rated Input
rated current
COP
Max. input consumption
Max. input current
Type
Charged volume
Refrigerant type
/Quantity
Dimension (W×H×D)
Packing (W×H×D)
Net/ Gross weight
Ambient temp
Water inlet setting temp. range (default)
220-240, 1, 50 220-240, 1, 50
|�����������
1120×1100×435
�|��|
970×1327×400
|����|�������
110/121 111/122
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+��������|�}��°C(12°C�������������������}��°C(40°C)
28
IMPORTANT INFORMATION FOR THE USED REFRIGERANT AIThis product has the fluorinated gas, it is forbidden to release to air. {����������������{�|�J�������������?'�������GWP=Global Warming Potential
ModelRefrigerant/kg tonnes CO2 equivalent
2.502.50��������2.903.20
5.225.22��������6.06����
10kW12kW14kW16kW
5kW7kW
Factory charge
���������=
Frequency of Refrigerant Leak Checks
1) For equipment that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO2 equivalent or more,but of less than 50 tonnes of CO2 equipment,at least every 12 months, or where a leakage detection system is installed, at least every 24 months.
2) For equipment that contains fluorinated greenhouse gases in quantities of 50 tonnes of CO2 equivalent or more,but of less than 500 tonnes of CO2 equipment,at least every six months, or where a leakage detection system is installed, at least every 12 months.
3) For equipment that contains fluorinated greenhouse gases in quantities of 500 tonnes of CO2 equivalent or more,at least every three months, or where a leakage detection system is installed, at least every six months.
4) This air-conditioning unit is a hermetically sealed equipment that contains fluorinated greenhouse gases.
5) Only certificated person is allowed to do installation, operation and maintenance.
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Cooling - Information requirements for comfort chillers
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