Tel: +353 (0)94-9034914 Fax: +353...

@ A4SDS-UK(Structural Design Solutions) Ltd,BRIDGE HOUSE, 25-27 THE BRIDGE,WEALDSTONE, HARROW, HA3 5AB.

Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20


Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20


Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20


Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20


Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20


Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20


Tel: +353 (0)94-9034914 Fax: +353 (0)94-9034698

LidL UK GmbH

1:20

APPENDIX 2: VentilationSystemDesign

NFK- Lidl UK Description of Heating & Cooling Control Systems

ENGIE Deutschland GmbH 1 Branch Office Dresden Business Unit Facility Services EN_2015-1 LOF Functional Description Lidl Food Stores_v3.2

Functional description of food store BMS using Priva (Lidl Foodstores UK - NFK) Description of Heating & Cooling Control Systems

1. Content of the control system The control system is based on the product of Priva company. The hardware is built into a separate control cabinet. Emergency switches exist on the DDC-modules in the control cabinet for commissioning and in fault case. The system can be operated and monitored via internet which is connected to the Lidl network. The staff can monitor and operate the system in a limited way via the PC in the back office and via the touchpanel in the managers office. Data exchange between DCC-unit and the internet is via L-Box, which is also installed in the control cabinet. All consumption measurement units are connected via M-BUS to the L-Box. The following control parts are carried out by the BMS:

- Cooling and air conditioning control of sales area - Switching on of the door air curtain - lighting control of sales area (including cash point area) - lighting control of car park lighting - lighting control of advertisement - Consumption recording - Temperature recording of warehouse and IT room - Temperature recording of fridge units - fault message management

2. Ventilation system cashpoint / sales area 2.1. Signals and control parameters: Main control zone 1: temperature cash point (supplied via ventilation and air conditioning zone 1) TC1

T (set point-heating) = 21 °C ±1K T (night) > 17°C

T (set point-cooling) = 23 °C ±1K T (night) non

Alarm limit min 20 ° C for 1h; max 24 ° C for 1 h Alarm output to the BMS

Main control zone 2: temperature sales area (supplied via ventilation and air conditioning zone 2) TC2

T (set point -heating) = 21 °C ±1K T (night) > 17°C

T (set point -cooling) = 23 ° C ±1K T (night) non

Alarm limit min 20 ° C for 1h; max 24 ° C for 1 h Alarm output to the BMS

Outside temperature: measured in the fresh air intake, Outside temperature when the air system is switched off

T3

Supply-air temperature zone 1 T4

T4 (limit value) > 12°C

Supply-air temperature zone 2 T5




exhaust-air temperature T6


Water temperature / heating/cooling – return forward line (indication only) TI7 Water temperature / heating/cooling - return line zone 1 (control variable) TC8

T (set point -heating) = 30°C

T (st point -cooling) = 12°C

room temperature warehouse 1 (indication only) TI9

room temperature IT-room (indication only) TI10 temperature backwall chiller 1 (indication only) TI11 temperature backwall chiller 2 (indication only) TI12 temperature chamber fruit & vegetable (indication only) TI13 temperature chamber meet (indication only) TI14 temperature freezer (indication only) TI15

temperature bakery (indication only) TI16 temperature warehouse 2 (indication only) TI17 temperature entrance area (indication only) TI18 Outside temperature: measured in fresh air ducting system, Outside temperature when the air system is switched on

T19

Carbon dioxide - sensor cash point

o Limit value (on) = 1,500 ppm o Limit value (off) = 1,400 ppm

S1

Relative humidity outside air, measured in fresh air ducting system

o Limit value (absolute humidity of outside air) = 11g/kg F1

Relative humidity sales area (indication only) FI2 Relative humidity bakery (indication only) FI3 Relative humidity fruit & vegatable (indication only) FI4 Relative humidity meat (indication only) FI5 2.2.variable actuator and control parameter Mixing pump P1 heating-/cooling register zone 1 / 0 to 10 volt M1 Mixing pump P2 heating-/cooling register zone 2 on/off M2



Cooling valve register zone 1 Y1 Heating-/cooling valve register zone 2 Y2 Heating valve register zone 1 Y3 Ventilator 1 supply-air unit 0 to 10 volt (double ventilators) Y51,Y52 Ventilator 2 supply-air unit 0 to 10 volt (double ventilators) Y61,Y62 Supply-air ventilator heat exchanger 0 to 10 volt Y7 Exhaust-air ventilator heat exchanger 0 to 10 volt Y8 Bypass damper heat exchanger 0 to 10 volt Y9 Exhaust-air damper heat exchanger open/close Y10 Fresh-air damper heat exchanger open/close Y11 Supply-air damper zone1 on/off Y12 Supply-air damper zone2 on/off Y13

Supply-air damper Heat recovery outside air AHU supply air on/off Y14 Supply-air damper Sales rear exhaust air on/off Y15 2.3.Fault and maintenance messages

- Pumps M1, M2 - Ventilators Y51, Y52,Y61,Y62, Y7, Y8 - Fire damper 1,2,3,4,5,6,7,8 - Fire alarm - Fire alarm control system fault - Signal Indruder alarm system is set - Signal Indruder alarm - Heating pump fault - Refrigeration system fault - ACU 1 IT-Room fault - ACU 2 IT-Room fault - Maintenance detector supply-air filter - Maintenance detector external-air filter - Maintenance detector exhaust-air filter - leakage detector/water detector fault IT-Room

2.4. Use of the ventilation system 2.4.1 Daily use -“open“ The opening hours are registered within a weekly time schedule.



The system runs in the „daily use mode“ if the display shows the status“ open“ or lead-/follow-up time from/to “open“ and heating or cooling is active. 2.4.2 Night-Weekend use – “closed“ The system runs in the “night-weekend-mode” as logic OR gate if:

the display shows the status “closed“

TC1 and/or TC2 < 17°C as well as the intrusion detection alarm equals to status L.

Generally the “night-weekend” mode is entirely active within the heating period (winter time)

The night cooling is activated within the summer period. Therefore, it has to be ensured that button “TC2 > 26°C” has to be activated which means that the temperature within the sales area exceeds 26 C. At the same time button “TC2 < 22°C” should be deactivated (temperature within the sales area is below 22°C).

2.4.3. Inventory mode / shock ventilation manually Via the touchpoint the “inventory” mode can be adjusted, as well as the ventilation can be operated manually.

“Inventory” - as long as this status is active the ventilation system runs in the „daily use“mode described in section 2.4.1.

“Shock ventilation” - as long as this status is active the ventilation system runs in the „daily use“ mode described in section 2.4.1 but with 100 % fresh (external) air.

2.5. Choice of operating status in order to adjust the temperature There are two choices

Heating period / winter time

Cooling period / summer time between these two operating modes is switched in automatic mode depending on the requirements from the sales floor. This should be kept a room temperature in the sales floor of between 20 ° C (21 ° C + -1K) to 24 ° C (23 ° C + -1K). Additionally there are two criteria to choose from at the user panel touchpoint or TCManager: a. Choose from the following buttons at the user panel touchpoint

Button “Heating“

Button “Cooling“

2.6. Requirements of media supply Heating or cooling water will be supplied by the heatpumps.

In case that heating is required (switching to heating mode), signal „L” displays equaling to the requirement to heat.

In case that cooling is required (switching to cooling mode), signal “L” displays equaling to the requirement to cool.



When heating or cooling energy is required in the store, the secondary pump MP11 released in the hydraulic station.

Additionally there will be an error message showing up at the cooling subsection equaling to “heating =0” or “cooling = 0“. 2.6.1 Shift procedure 1. Starts the system from a standstill, the selected mode is released directly and shortly thereafter the secondary pump MP11 is released 2. If the system is active and needs to be switched to another mode a switching procedure are complied with: 2.1 from heating mode: release heating OFF -> secondary pump MP11 remains for about 20 minutes in operation without supply of energy from the heat pump (storage discharge) until the storage temperature below 25 ° C -> Cooling release ON 2.2 from cooling mode: Cooling release OFF -> secondary pump MP11 remains for about 20 minutes in operation without supply of energy from the heat pump (storage discharge) until the storage temperature above 16 ° C -> heating release ON 2.7. Control parameters in case that carbon dioxide is within the target range 2.7.1. Heating operation There are different target values for day and/or night / weekend Case 1: Without fresh (external) air Criteria: T3 outside temperature < min(TC1,TC2) plus 8°C

Ventilators of the heat exchanger are in “off” mode.

Spring return dampers Y10,Y11,Y14,Y15 are in close mode

Control loop zone 1/ temperature TC1 via heating valve register Y3 -- Cooling valve register Y1 “CLOSED“

Control loop zone 2 / temperature TC2 via heating-/cooling valve register Y2

Supply-air damper (zone1 and zone 2) should be open if ventilators are running. Otherwise in a closed state.

Additional slow down regulation cycle --> Variable “rotational speed supply air fan 4 parallel“

Initial value: maximum rotational speed (10 volt)

If the control valves are 100%, the rotational speed is 100% as well

If the control valves are 25%, the rotational speed is 40%

Ventilation zone 1 + 2 only release if heating or cooling energy is requested from the store

In the case of both Hauser cooling station heat pumps are disturbed, must be switched in case 2 Case 2: With fresh (external) air Criteria: outside temperature T3 > min(TC1,TC2) plus 8°C Limit value observation: absolute humidity of outside air < limit value of absolute humidity In case that condition is not met, then back to case 1

Supply air facility is in “off“mode / exchange heater used its full capacity (100 %) by activating the respective o-damper, Spring return dampers Y10,Y11,Y14,Y15 are in open mode.



Bypass damper Y9 is at maximum outside air (100 %).

TC1 temperature can be controlled by using the rotational speed of the ventilation system. TC2 temperature will be ignored.

2.7.2. Cooling process Case 1 (Step2): Without fresh (external) air Criteria: T3 outside temperature >= max(TC1,TC2) minus 8°C

The exchange heater is switch off, Spring return dampers Y10,Y11,Y14,Y15 are in close mode.

There are the same rules as described in section 2.7.1. (heating operation) except for control loop zone 1 which will be used to regulate the cooling valve Y1. The cooling valve Y2 is switch off.

The limit values of the supply air temperature are not allowed to be exceeded.

Additional slow down regulation cycle --> Variable “rotational speed supply air fan 4 parallel“

Ventilation zone 1 + 2 only release if heating or cooling energy is requested from the store

In the case of both Hauser cooling station heat pumps are disturbed, must be switched in case 2 Case 2 (Step 1): With fresh (external) air Criteria: T3 outside < max(TC1,TC2) minus 8°C Limit value observation: absolute humidity of outside air < limit value of absolute humidity of internal air In case that condition is not met, then back to case 1

Supply air facility is in “off“ mode / exchange heater used its full capacity (100 %). Spring return dampers Y10,Y11,Y14,Y15 are in open mode.

Bypass damper Y9 is at maximum outside temperature (100 %).

TC1 temperature can be controlled by using the rotational speed of the ventilation system. TC2 temperature will be ignored.

Case 3: Passive cooling over night (precooling) Criteria: T3 outside < max(TC1,TC2) minus 8°C

Duration : in „close“ usage

Supply air system is in “off“ mode / exchange heater used its full capacity (100 %)

Spring return dampers Y10,Y11,Y14,Y15 are in open mode.

Bypass damper Y9 is at maximum outside temperature (100 %).

Rotational speed has to be always at maximum level (100%).

In case that the internal temperature is below 22°C for 15min the facility turns automatically off

In case that the difference between inside minus outside temperature is below 3°C the air system turns automatically off

2.8. Control elements (in case carbon dioxide does exceed its limit)

Entire heat exchange facility (including all dampers) is turned on. The bypass damper is at maximum level (100%).

The control loop will become slower and can be controlled via the rotational speed of the ventilation system.

The initial value of the rotational speeds is set up at 80%. In case that the rotational speed is below 10% the heat exchanger will automatically turn off.

Cases – Heating / Cooling with fresh (external) air



Is the exchange heater already in use the rotational speeds are limited to the lower edge of the target levels.

2.9. Cases of faults

- Fire alarm Ventilators and pumps and dampers switch off - Fault heating /cooling Ventilators and pumps and dampers switch off - Any Fire damper is closed Ventilators and pumps and dampers switch off - Fault pumps M1, M2 If only one pump is not working, this pump

will turn off If both pumps are not working, then ventilators and pumps will be turn off and dampers will be closed

- Fault Ventilators Y51,Y52, Y61, Y62 If only one ventilator is not working, this

ventilator will turn off If both pumps are not working, then ventilators and pumps will turn off and dampers will be closed

- Fault Ventilation Y7,Y8 If any ventilator is not working, then ventilators and dampers will be closed

- Fault leakage detector IT-Room there is any water leakage in the IT-Room - Fault from any ACU in the IT-Room ACU 1 or 2 IT-Room is in fault - Fault Heatpumps Hauser only if both heatpumps are faulty the recirc AHU is

switched off - Fault secondary pump M11 If the secondary pump M11 in the hydraulic station is

faulty the recirc AHU is switched off 3. Ventilation systems with self control 3.1. Door Heater /Air curtain (Sales Entrance) The system is running, when store is open and heating or cooling is on. Only switching on/off is carried out by the DCC system. Electrical heating has its own control and is included in the door air curtain. 3.2. Room Ventilation with its own control For the following rooms on first floor:

- Female Cloakroom - Female WC - Male Cloarkroom - Cleaners

and the following rooms on ground floor

- Cleaners - Baby change - Customer WC - Customer disabled WC - Cashroom - Fridge- anti-condensation - bakery with Customer WC and Customer disabled WC

Individual ventilation systems will be installed, which will be switched on/off by a light switch.



3.3. Air conditioning (heating and cooling) by company Mitsubishi For the following rooms:

- IT-Room - Staff Room - Manager’s office - Warehouse

will be heated or cooled by its own system of Mitsubishi company. This system has its own control (with room temperature sensor). For monitoring and recording purposes room temperature for

- warehouse and - IT-room

are connected to DCC/BMS. 4. Lighting control 4.1. 1/3 lighting control in the sales area Lighting is on if intruder alarm signal is “indistinct” (switched off) or if intruder alarm is activated. 4.2. 2/3 lighting control in the sales area 2/3 –lighting is on if

- Store is open including lead time. - or buttons “Inventory mode“ is switched on on the screen on the back office

4.3. Car park lighting Lighting is on if store is open including lead time and if brightness value of exterior lighting sensor is not exceeded. In addition lighting can be switched on/off via button “check mode exterior lighting” for testing purposes. In case of intruder alarm signal lighting will be switched on automatically. 4.4. Advertisement lighting Lighting is on if store is open including lead time and if brightness value of exterior lighting sensor is not exceeded. In addition lighting can be switched on/off via button “check mode exterior lighting” for testing purposes. In case of intruder alarm signal lighting will be switched on automatically. 5. Control of ACU’s IT-Room The ACU’s are only redundant in operation, not simultaneously. The ACU 1 is in operation Monday to Friday and the ACU 2 is in operation Saturday to Sunday. In case of failure of the active ACU a switchover to the other ACU takes place. 6. Determination of collective fault signal



The following collective fault signals will be created and monitored by the following individual fault signals: - Fault signal heating/cooling will be created out of: … fault heating / heat pump … fault cooling / heat pump … fault hydraulic pump ventilator zone 1 … fault hydraulic pump ventilator zone 2 - Fault signal ventilation will be created out of: … fault ventilation units Y51, Y52, Y61, Y62, Y7and Y8 … fault fire damper 1,2,3,4,5 and 6 - fault fire alarm will be created out of: … fault signal fire alarm control system - fault IT-Room will be created out of: … fault signal Leakage detector or any ACU in the IT-Room 7. Determination of operating hours Operating hours are determined and monitored in the BMS system for the following sections and devices :

- 1/3 - lighting - 2/3 – lighting - CP – lighting - heating pump - ventilation system - inventory mode

Dresden, the 03/31/2016

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DRAWING NO.

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APPENDIX 3: EvidenceofMembraneInstallation

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