Climate Center in Partnership with GEA Searle BMO & BMIE Installation and Maintenance Instructions ( )

Transcription

1 Climate Center in Partnership with GEA Searle BMO & BMIE Installation and Maintenance Instructions ( )

2 Part umber: Date: 27/2/203 Issue: 2

3 Contents Health and Safety Before Installation During Installation & Maintenance Pipework Brazing Planning the installation Locating the condensing unit How to gain access to the condensing units Locating the Evaporator How to gain access to the evaporators Installing the units Mounting the condensing unit on a wall bracket Mounting the evaporator on a wall bracket Pipework Installation Pipework Sizing Pipework Supports and Routing Brazing Expansion Valve Phial Location Drainage... 5 Electrical SUPPLY & function Cable Sizing Cable connection/termination Power entry to the condensing units Power entry to the evaporators Optional fan speed controller Pressure testing Low Pressure Leak Test High Pressure Leak Test R407C Pressure limits Evacuation R407c Charging Electronic Controller Controller operating limits Controller set-point adjustment Controller operation Defrost Controller alarm output & fault signals Evaporator energy saving (Standard Setting)... 7 Part umber: Date: 27/2/203 Issue: 2

4 9.7 Master / slave wiring Free Cooler Connection PCB Connections Commissioning Final Checks Scroll Rotation... 9 Maintenance Every 3-6 months Every 2 months When ecessary Interconnecting Pipe Sizing Chart Wiring Diagrams BMO00- Wiring Diagram BMO20- Wiring Diagram BMO50- to 300- Wiring Diagram BMO50-3 to Three Phase Wiring Diagram BMI All EVAPORATORS Wiring Diagram Physical Data BMI / BMO Guarantee Part umber: Date: 27/2/203 Issue: 2

5 This document has been designed to help you and make the installation easier, please read the points below to be familiar with the units and the installation. HEALTH AD SAFETY This concerns the hazards, which may be encountered when installing and maintaining the equipment. It is therefore important that these instructions are followed. Upon receipt, the units should be visually inspected and the supplier notified of any damage or shortages within seven days from receipt of the unit. Care must be taken when removing the packaging and during installation, to prevent the finished surfaces being damaged. Units are not portable and are only for permanent installation. CAUTIO All work on the unit must be carried out by qualified personnel only. The installation and maintenance manual must be kept with the unit at all times. Ensure that the instruction manual is understood before installation. Ensure working environment is suitable. Use suitable PPE (Personal Protection Equipment) as per site regulations and as appropriate for the task. It is the responsibility of the person performing the task and their employer to ensure that all suitable PPE is provided and worn at all times. Detailed below is some of the suggested PPE during installation and commissioning of the unit. Head protection Foot Protection Hand Protection High Visibility Clothing Eye Protection. BEFORE ISTALLATIO Ensure that: a) The voltage, working fluid and the maximum working pressures stated on the product nameplates are suitable for the proposed working environment. b) The units are to be operated solely for cellar type cooling applications, and are put into operation as per this manual. c) The proposed method of mounting is adequate to support the total operational weight of the unit, which can be found on the unit nameplate. d) The working environment is safe and suitable for the work required to install the product..2 DURIG ISTALLATIO & MAITEACE Ensure that: a) The units are installed and maintained by qualified personnel only. b) The electrical supply is isolated and secured from accidental re-connection. c) Electrical connections to the unit should be made in accordance with IEE regulations and with attention to local laws and legislation. Part umber: Date: 27/2/203 Issue: 2

6 .3 PIPEWORK Interconnecting refrigerant lines installed between the condensing unit and evaporator must be blown through with nitrogen to remove any particles of dirt, debris or moisture as in accordance with good refrigeration practice. This will avoid clogging or damage to the solenoid valve and expansion valve. Care should be taken when completing this to avoid any personal injury..4 BRAZIG A suitably qualified engineer should carry out brazing to a high standard of refrigeration practice. Engineer should ensure that: a) The working area is adequately ventilated. b) Appropriate PPE must be worn. c) The evaporator drain tray is removed before brazing. d) The temperature of any coil with coated fins does not exceed 50 C during brazing as toxic fumes will be produced. e) Care should be taken to avoid any direct flames being applied to the casework, and controls or any area away from that being brazed. Part umber: Date: 27/2/203 Issue: 2

7 2 PLAIG THE ISTALLATIO 2. LOCATIG THE CODESIG UIT To ensure optimum performance, the condensing unit should be situated to give uniform air distribution across the coil. a) Obstructions to airflow should be minimised. Coils should ideally be shaded from the sun. b) Consideration should also be given to servicing and airflow, please see the diagram below. 750mm Min Clearance Above The Unit 50mm Min Clearance behind the Unit 500mm Min Clearance LHS of the Unit 000mm Min Clearance Front of the Unit 500mm Min Clearance RHS of the Unit c) If units are roof mounted it is recommended that isolation material is used between the feet of the unit and the roof itself. The unit should also be installed level and on a firm platform. 2.2 HOW TO GAI ACCESS TO THE CODESIG UITS a) Loosen, but do not remove, the screws marked * the lid will now open, and can be latched in the open position. b) Lift the corner of the end panel slightly to take the load of the door from the corner of the unit. c) The panel can now opened and can be lifted off completely if required. Part umber: Date: 27/2/203 Issue: 2

8 2.3 LOCATIG THE EVAPORATOR The evaporator has a draw-through airflow direction and is designed for either ceiling mounting or wall mounting, using the optional wall mounting kit (C.C. pt. no ). Locate the evaporator as follows: 50mm Clearance 400mm Clearance 275mm Rear Clearance 2000mm Air Off Clearance Air Flow Part umber: Date: 27/2/203 Issue: 2

9 2.4 HOW TO GAI ACCESS TO THE EVAPORATORS Remove the screws in the large end panel behind the electrical fascia, and then remove the two screws in the rear of the drain tray. With the drain tray slid back the end panel access is significantly improved and the unit will be easier to lift into position. DO OT braze the pipework connections with the drain tray in place. 3 ISTALLIG THE UITS 3. MOUTIG THE CODESIG UIT O A WALL BRACKET a) Check the intended wall is strong enough to support the total operational weight of the unit, including the refrigerant charge. b) Use the straight upright rails to mark out the drilling positions on the wall. Ensure the rails are vertically aligned and parallel to each other, and horizontally level to each other. Space the rails at 690mm apart. c) Drill all holes for M8 or M0 fixings as appropriate. (c) d) Assemble the angle brackets to the uprights using M8 fixings provided, and fix securely to the wall using suitable wall fixings. (b) e) Lift the unit into position and fix at all 4 feet positions with M8 fixings provided. (a) Part umber: Date: 27/2/203 Issue: 2

10 3.2 MOUTIG THE EVAPORATOR O A WALL BRACKET a) Check the intended wall is strong enough to support the total operational weight of the unit, including the refrigerant charge. b) The 2 brackets should be spaced according to the unit size. See sketch above (e.g. 590mm for fan unit). c) Use the angled bracket with straight side against the wall, to mark out the drilling positions. Ensure that the rails are installed as above such that unit is mounted horizontally. d) Drill all holes for M8 or M0 fixings. (c) e) Use suitable wall fixings securely fix the angle brackets to the wall. f) Fix the rails to the angle brackets with the M8 fixings provided, fix at all 4 positions & tighten securely. (b) g) Screw in the M8 fittings into the rails leaving a gap. h) Lift the evaporator unit into position with the 4 fixings protruding through the keyhole slots. (a) i) Push the evaporator back so the fixings are firmly located in the small end of the keyhole slots and tighten securely at all 4 positions. j) Use a spirit level to ensure the unit is level in both directions. Use spacers as required to ensure the fall of the drain pan is maintained to the rear of the unit. Part umber: Date: 27/2/203 Issue: 2

11 6m Maximum Lift Swan neck at centre of lift 4 PIPEWORK ISTALLATIO Pipework to and from the unit should be selected to suit the application and not the connection size of the unit. Pipework should be supported independently from the condensing unit and evaporator in a way that prevents the transmission of vibration between the units. 4. PIPEWORK SIZIG Pipework runs up to a maximum of 30m are permissible between the BMO and BMIE units. Each installation must be evaluated for the total equivalent pipe run length, including equivalent lengths for bends, additional fittings and vertical lifts etc. Please refer to the interconnecting pipe sizing chart for a full selection. Page PIPEWORK SUPPORTS AD ROUTIG Pipework should be supported independently from the evaporator in a way that prevents the transmission of vibration to the units. Suction line must be insulated. At contractor s discretion, liquid and suction lines might be run and clamped resting against each other, and insulated within the same insulation tube to increase sub-cooling and improve performance. A maximum of 6m vertical lift is allowed. Any vertical lift of the suction line must be accommodated with a Swan eck in the pipe work to assist in oil return and prevent liquid flood back during off cycle, please refer to the diagram right. A refrigerant filter drier is fitted in the BMIE unit s inlet pipework. During installation it is important that the pipework is not left open to atmosphere any longer than necessary as moisture will be absorbed by the drier reducing its normal system drying capacity. The pipework bungs should only be removed just before brazing of the pipework is started. Upper Level Unit = = Lower Level Unit 4.3 BRAZIG Additionally to health and safety instructions, engineer should ensure: a) All pipe cuts are clean and any swarf is removed. b) Dry nitrogen is purged through system during brazing to minimise oxidisation. c) Wet rags are used on all components close to brazing operations, and heat shields are used to protect the units. 4.4 EXPASIO VALVE PHIAL LOCATIO A suitably sized thermostatic expansion valve is fitted to the evaporator with an external equalising line fitted to the suction header. The expansion valve phial is coiled, but not clamped to the suction line pipework. This should be fitted to the suction stub once the interconnecting pipework has been installed. Ensure the phial is positioned as per the diagram below, at the 3 or 9 o clock position for /2" & 5/8 pipe, and at the 4 or 8 o clock position for 3/4" size pipe and above. Do not mount the phial on the top or bottom of the pipe, and ensure the full length of the phial is in contact with the pipe, and not mounted across any uneven area such as where it may be swaged or brazed. Part umber: Date: 27/2/203 Issue: 2

12 9 o clock 3 o clock 8 o clock 4 o clock 4.5 DRAIAGE The evaporator drain tray is fitted with a 3/4" BSP condensate connection. This MUST be connected to a trapped drain line system. It is not acceptable to allow the condensate to drain directly to the cellar floor, due to the potential Health and Safety hazard. 5 ELECTRICAL SUPPLY & FUCTIO CAUTIO: Both the condensing unit and evaporator should be fed from the same supply. If separate supplies are used, ensure they are from the same phase. Otherwise a potential of 45 Volts will occur between the units. Always ensure that the electrical supply to the unit is isolated before opening any panel. 5. CABLE SIZIG Cable sizes should be selected to suit the application, adhering to the latest IEE and BSE60204 standards. It is recommended that SWA cable is used, and the armour braiding is suitable secured in the gland, terminated and earthed correctly at its point of entry into the units. The BMIE and BMO unit power connections are suitable for cables up to 4mm 2. For cables larger than this it is recommended that the larger incoming cable be terminated at a wall mounted junction box or isolator close to the unit, and a reduced size cable used to connect to the unit. 5.2 CABLE COECTIO/TERMIATIO There is no interconnecting wiring between the evaporator and condensing unit. They operate independently on a pump down control system. All Evaporators and Single-phase Condensing units require a Live, eutral and Earth supply. Three-phase condensing units require a Three-Phase, eutral and Earth supply. The electrical supply to the unit must be taken from a correctly sized (and motor rated) main circuit breaker or fuse box, corresponding to the condensing unit, evaporator and evaporator heater currents. Part umber: Date: 27/2/203 Issue: 2

13 5.3 POWER ETRY TO THE CODESIG UITS There are 3 power entry points marked **, above the pipe connections, at the rear of the unit, and in the base of the unit. Ensure any cables are routed clear of the compressor, pipework and crankcase heater, see sketch below. The power supply cable should be properly fitted through a gland at its entry point to the unit. The supply cores in the cable should be securely connected into the incoming side of the unit isolator. For 3ph units ensure the Phase and eutral connections are properly connected to the correct isolator terminals. 5.4 POWER ETRY TO THE EVAPORATORS The power entry points are on the back left hand side of the evaporator shown below (**). The cable should be suitable secured in a gland, and earthed to the stud provided. The supply L & cable cores should be routed into the control box via the conical grommet. For access to the control box the 6 fascia display screws should be removed and the connecting lead to the fascia display should be carefully disconnected. The supply L & cores should be connected to the 2 way power terminal on the larger PCB, as shown. Part umber: Date: 27/2/203 Issue: 2

14 Earth L 240V Supply 5.5 OPTIOAL FA SPEED COTROLLER An optional fan speed controller is available for the BMO condensing unit (C.C. pt. no ) The fan speed controller should be fitted as follows: a) Isolate the power supply to all units. b) Open the BMO unit lid and front cover. c) Locate the spare liquid line schraeder connection inside the BMO unit. d) Oil the female connection of the fan speed controller, and screw on hand tight to the schraeder connection. e) Using 2 spanners in a scissor motion, tighten the controller to the connection. f) Leak test the connection. g) Using a 3-core cable sized correctly to allow for the run on the site, wire the fan speed controller plug noting the core colours or numbers and which plug terminal they are connected to. (ote: the controller is double insulated, and does not require an earth connection.) h) Wire the other end of the 3-core cable to the control panel terminals, ensuring the link between terminal X3 and X4 is removed. (Please see wiring diagram on pages 22 onwards). i) Check all wiring connections are correct, and restore the power. j) Check the fan starts correctly and is speed controlled. k) The controller is factory set to maintain 9 BarG condensing pressure, and needs to be adjusted. Turn the brass screw adjacent to the plug connection inwards to increase the set pressure, and outwards to decrease the set pressure. It is recommended that a condensing pressure of 5 BarG is set on the controller. Check the condensing pressure with a gauge set connected to the liquid line schraeder valve. Part umber: Date: 27/2/203 Issue: 2

15 6 PRESSURE TESTIG 6. LOW PRESSURE LEAK TEST Both condenser and evaporator units have been strength & leak tested, dehydrated and filled with a holding charge of "dry air" during manufacture. After installation, the entire system should be leak tested before evacuation as follows: a) Release the holding charge of dry air. b) Pressurise the system with itrogen to the maximum R407C LP pressure =4 BarG. c) Check the whole system for leaks, if a leak is found, release the test pressure and repair the leak, then repeat test from the start. d) When complete, fully front seat the suction service valve to close off the low-pressure switch, and compressor suction. 6.2 HIGH PRESSURE LEAK TEST a) Pressurise the High side of the system with itrogen to the maximum R407C HP pressure = 26 BarG. b) Ensure the solenoid in the Evaporator remains closed. c) Check the whole system for leaks, if a leak is found, release the test pressure and repair the leak, then repeat test from the start. WARIG: Wear Safety Goggles when performing the leak testing, and ensure all other personnel are excluded 6.3 R407C PRESSURE LIMITS All the BMO condensing units have auto reset pressure switches fitted. On the liquid side, the high-pressure switch will cut unit out at 26 Bar. There is a 6 Bar differential; i.e. pressure is required to fall to 20 Bar before unit will cut back in. On the suction side, the low-pressure switch will cut unit out when pressure falls to 2.0 Bar i.e. during pump down mode. The pressure must rise to 3.0 Bar before unit will cut back in. 7 EVACUATIO The entire system should be evacuated prior to charging as follows: a) Connect a gauge manifold to the /4" flare connections on each service valve. Check the service valves are fully back seated to ensure the pipe and service connection is fully open. b) Connect a vacuum pump to the service port on the gauge manifold, and ensure all paths are open. c) Evacuate the system to below 225 microns (0.3 mbar). The pump should be isolated and the system pressure monitored. A rapid continuous rise would indicate a leak in the system. d) During the evacuation process the crankcase heater should be turned on, by energising the power supply to the unit. WARIG! DO OT MEGGER TEST OR START THE COMPRESSOR WHILST UDER A VACUUM. 8 R407C CHARGIG It is good practice to charge the system immediately after evacuation. When using R407C refrigerant the system MUST be charged with a liquid and EVER with gas. While the unit is under a vacuum liquid can be charged into the line via the schraeder point. The main charging process should be completed during commissioning process. Depending on ambient conditions any remaining charge can be added into the suction service schraeder using a liquid expansion charging device, connected via a gauge set creating a pressure drop as liquid charging into the suction connection is not permitted under any circumstances at the condensing unit. Part umber: Date: 27/2/203 Issue: 2

16 Charge should be added whilst the system is running close to normal operating conditions. Condensing: 42 o C Air On: 27 o C 5K TD TEV Compressor Air On: 0 o C Evaporating: 2 o C 8K TD 5K Super Heat The system when correctly charged should have a virtually bubble free sightglass, and adequate superheat at the compressor suction. Once the system is fully charged, operate for one hour at conditions close to design. The BMIE evaporator expansion valve superheat is factory set to 5K (approx.). Superheat should be checked. If adjustment is necessary, remove cap from expansion valve and adjust using small flathead screwdriver. A ½ turn anticlockwise will reduce superheat. Allow system to settle for at least 0 minutes after each adjustment. If after charging the unit is left with the power supply turned off, the crankcase heater should be switched on for a minimum of 3 hours before the unit is started. This will ensure that the compressor sump is free from liquid refrigerant. If a leak occurs in the system the R407C blend may be altered enough to cause undesirable operation of the evaporator TEV. It is important to assess how much charge remains in the system. If this is more than 2/3 s of the original charge the system can be topped up with R407C liquid refrigerant as normal after repairing the leak. If this is less than 2/3's of the original charge, the remaining refrigerant should be recovered and the system recharged with new refrigerant, once the leak has been repaired. The recovered refrigerant should not be reused. 9 ELECTROIC COTROLLER 9. COTROLLER OPERATIG LIMITS The BMIE controller has a setpoint operating range of 4 to 32 C (ormal operation range 0-3 C.) For operating temperatures below 8 C, a defrost sensor should be fitted (C.C. pt. no ). There are 2 LEDs to indicate controller state. There is a 5 minute anti-cycle timer which is operational immediately on power up. 9.2 COTROLLER SET-POIT ADJUSTMET Important: Upon powering up the cooler allow it to run for 5 seconds before adjusting the set point. If the power must be turned off to reset the controller leave it off for 5 seconds to ensure a proper reset. There are two buttons for operating controller. Press both buttons simultaneously for 5 seconds to enter set mode, the display flashes the set point when in set mode. Use the Left button to reduce the set-point and use the Right button to increase the set-point. Part umber: Date: 27/2/203 Issue: 2

17 9.3 COTROLLER OPERATIO In set mode cooling and heater are disabled and the anti-cycle timer is reset stopping any cooling for 5 minutes. Control mode is re-established if no button is pressed for 3 seconds and revised set-point is accepted. In control mode the display shows the space temperature. In set mode the display shows the set-point. The controller will initiate either cooling or heating according to the following: Cooling is switched on when the space temperature is 2 C above the set-point. (Bottom LED on) Cooling is switched off when the space temperature is C below the set-point. (no LED s on) Heating is switched on when the space temperature is 3 C below the set-point. (Top LED on) Heating is switched off when the space temperature reaches the set point. (no LED s on) Both LED s are illuminated during defrost. 9.4 DEFROST If the required set point is below 8 C the BMIE unit will require regular defrosting. To enable defrost an additional sensor must be fitted as follows (C.C.no ). a) Turn off the evaporator power supply, and remove the front cover panel. b) Feed the sensor wire through the rear of the junction box. c) Connect the two sensor wires to the two terminals marked Defrost Bead on the power PCB. d) Ensure the jumper next to the fuse on the power PCB is connected across the bottom two pins in the lower C position; see section 8.6 for more details. e) Replace the front cover panel. f) Feed the sensor out of the rear of the unit, and place between two of the fins of the evaporator coil in the lower left hand corner, approximately 00mm in from the right and 00mm up from the bottom of the coil. g) Gently form the two fins over and around the sensor to secure it, so it can accuratley sense the coil temperature. Fit the defrost bead between 2 coil fins, Ease the fins around the bead to seal & hold in place Part umber: Date: 27/2/203 Issue: 2

18 With the defrost sensor fitted the controller will initiate an off-cycle defrost every 4 hours. During defrost, cooling is stopped and all fans run, (both LED s illuminated). Defrost is terminated after: a) 30 minutes Or b) If the defrost sensor temperature rises C above the set point. To Complete a Successful defrost: The evaporator coil should be inspected after initially operating for 2 to 24 hours. If any ice remains after defrost has terminated, relocate the defrost sensor to the position where the ice remains. The coil should be fully defrosted before cooling is started again. ote: The defrost timings are not adjustable. 9.5 COTROLLER ALARM OUTPUT & FAULT SIGALS If the space temperature is outside the limits of or+2 C of the set point for 30 minutes the alarm will be initiated and the display will show HI. The alarm will automatically reset once the space temperature is within the control band. Alarm output o A 2-volt relay can be connected between the Alarm 'SIG and the '+2 V' connections on the top 6 way connector to energise alarm sirens and/or lamps. o Any relay used must have a coil rated at 2 volts with a maximum running current of 50mA. Alarm signal codes o If either the air or defrost sensor fails the display will flash a fault signal alternately with the air temperature. o The signal will latch, and will not un-latch until the power is reset. Fault signals are: P/OC = Air on sensor Open Circuit, P/SC = Air on sensor Short Circuit, P2/OC = Defrost sensor Open Circuit, P2/SC = Defrost sensor Short Circuit, If a defrost sensor fault occurs the set point will be limited to 8 C minimum until the fault is resolved, even if set lower. If an air sensor fault occurs the heating and cooling functions are disabled. 9.6 EVAPORATOR EERGY SAVIG (STADARD SETTIG) The BMIE controller when supplied is set to energy saving mode (jumper in the upper position marked S ). C Mode Continuous Fan Mode S Mode Single Fan Mode Part umber: Date: 27/2/203 Issue: 2

19 Where one fan will run continuously while the unit has no cooling demand, when cooling is required both fans run continuously. This setting will help reduce energy consumption significantly on a unit where more than fan is fitted. Unit Off Cycle S Mode Cooling S Mode Off Cycle C Mode Cooling C Mode BMIE37 / 48 Fan Fan Fan Fan BMIE 68 / 89 BMIE 04 / 33 Fan Fan Fan Fan Fan 2 Fan 2 Fan 2 Fan 2 Fan Fan Fan Fan Fan 2 Fan 2 Fan 2 Fan 2 Fan 3 Fan 3 Fan 3 Fan 3 The controller can be set to have both fans running in the off cycle mode if required by following these steps refer to the image above. (ote: This will increase energy consumption.) o o o o Turn off and isolate the power to the BMIE unit, Remove the front cover from the controls facia. Find the small jumper between the fuse and earth screw. Move the jumper to the upper two pins marked C. (Jumper in the lower position marked C ). ote that energy saving mode should not be used in conjunction with off-cycle defrost. 9.7 MASTER / SLAVE WIRIG When using 2 BMIE evaporators connected to the same BMO condensing unit, the controllers MUST be linked together to run in unison as follows: a) One BMIE evaporator must be selected to be Master and the other BMIE the Slave. b) Isolate the electrical supply to all units c) Open the slave BMIE controller front fascia and remove the display lead plug from the power pcb board, (the slave display will no longer illuminate or function). d) Connect a 3-core cable to the Master/Slave connection on the top LH corner of the power pcb board, and route out the back of the unit. e) Open the master BMIE controller front fascia, and connect the 3 core cable to the Master/Slave connection, ensuring the cores are matched to the same terminals on both boards. f) Leave the display lead connected on the Master BMIE. g) Re-assemble the controller fascia s 9.8 FREE COOLER COECTIO If a BFC (Free Air Cooler) is to be installed then the jumper setting shown in the below image will need to be set to Free Cooler (YES). Then a two core cable will need to be connected from the terminal block to the Terminals Free Cooling Fitted Yes Free Cooling OT Fitted o Part umber: Date: 27/2/203 Issue: 2

20 9.9 PCB COECTIOS 0 COMMISSIOIG 0. FIAL CHECKS Prior to starting the system, final checks should be made to the wiring, ensuring all connections are correct and tight. Before operating unit for first time, check that all guards, motors, mountings and electrical covers are secure, and that all necessary terminal block links are added/removed and that fans rotate freely. 0.2 SCROLL ROTATIO Important: Scroll compressors will only compress in one rotational direction. Three-phase compressors will rotate in either direction depending upon phasing of the power to T, T2 and T3. Verify that the compressor rotation is correct by checking the suction pressure drops and the discharge pressure rises when the compressor runs. If the compressor rotation is incorrect it will be very noisy, and current draw is substantially reduced. Correct the rotation by swapping over any two of the supply phases. MAITEACE WARIG! THE UIT MUST BE ELECTRICALLY ISOLATED BEFORE MAITEACE WORK IS UDERTAKE The following routine maintenance is required:. EVERY 3-6 MOTHS The condenser should be cleaned to ensure correct operation of the condensing unit. When the condenser coil is obstructed by dirt or rubbish, the unit will experience high condensing temperatures which will result in higher running costs, loss of compressor efficiency and ultimately overheating of the compressor and/or condenser fans..2 EVERY 2 MOTHS Check security of fixings, especially the fan and motor mountings. Check refrigerant pipeline for damage and leaks. Check evaporator and condenser motors (fans should rotate freely). Check the tightness of the liquid and suction service valves. Part umber: Date: 27/2/203 Issue: 2

21 .3 WHE ECESSARY For both the evaporator and condenser, clean the fins, guard and general casework. Care must be taken when cleaning the fins to prevent damage. It is recommended that a soft brush and mild detergent solution be used. High-pressure spray washing of the unit must not be undertaken, as damage to fins and fin coatings, and components will occur. Low-pressure spray washing using specialist coil cleaning solutions is recommended. 2 ITERCOECTIG PIPE SIZIG CHART The pipework sizes below are suited for the nominal duty of the BMIE and BMO matched together as shown in the table on page 2 Pipework should be selected based on the total equivalent run length of the interconnecting pipe between the two units, and not the dimensional length. Additional equivalent lengths for all bends, and vertical rises etc should be added to the basic run lengths to achieve the Equivalent run lengths. If the equivalent run length exceeds the 0m setting use 20m, and if the run exceeds 20m use 30m, do not up rate or interpolate the readings below. For systems using 2 BMIE evaporators on one BMO condensing unit, select the BOLD figure for the pipe size from the condensing unit to the tee. Select the ITALIC figure for the pipe size from the tee to each evaporator see the table page 2. Use pipe sizing in Italic From Tee to Evaporators Use pipe sizing in Bold From Condenser to Tee Part umber: Date: 27/2/203 Issue: 2

22 Condensing Unit Connections Evaporator Cellar Temperature 4 C Cellar Temperature 0 C 0m 20m 30m 0m 20m 30m Model Suction Liquid Model Suct Liq Suct Liq Suct Liq Suct Liq Suct Liq Suct Liq BMO-00- /2" BMI /2" 5/8" 5/8" /2" 5/8" 5/8" BMO-00- /2" BMI /2" 5/8" 5/8" /2" 5/8" 5/8" BMO-20-3/4" BMI /8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-20-3/4" BMI /8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-20-3/4" 2xBMI /2" /2" 5/8" /2" 5/8" 5/8" 5/8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-50-/3 3/4" BMI /8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-50-/3 3/4" BMI /8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-50-/3 3/4" BMI /8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-50-/3 3/4" 2xBMI /2" 5/8" 5/8" /2" 5/8" 5/8" 5/8" 3/4" 3/4" 5/8" 3/4" 3/4" BMO-200-/3 3/4" BMI /4" 3/4" 7/8" 3/4" 7/8" 7/8" BMO-200-/3 3/4" BMI /4" 3/4" 7/8" 3/4" 7/8" 7/8" BMO-200-/3 3/4" 2xBMI /2" 5/8" 5/8" /2" 5/8" 5/8" 3/4" 3/4" 7/8" 3/4" 7/8" 7/8" BMO-250-/3 3/4" BMI /4" 7/8" 7/8" 3/4" 7/8" 7/8" BMO-250-/3 3/4" BMI /4" 7/8" 7/8" 3/4" 7/8" 7/8" /2" BMO-250-/3 3/4" 2xBMI /8" 5/8" 3/4" 5/8" 3/4" 3/4" 3/4" 7/8" 7/8" 3/4" 7/8" 7/8" /2" BMO-300-/3 3/4" BMI /4" 7/8" 7/8" 3/4" 7/8" /8" /2" BMO-300-/3 3/4" BMI /4" 7/8" /8" 3/4" 7/8" /2" /8" /2" BMO-300-/3 3/4" BMI /4" 7/8" /8" /2" 3/4" 7/8" /2" /8" /2" BMO-300-/3 3/4" 2xBMI /8" 3/4" 3/4" 5/8" 3/4" 3/4" 3/4" 7/8" 7/8" 3/4" 7/8" /8" /2" BMO /8" /2" BMI /8" /8" /8" /2" 7/8" /8" /2" /8" /2" BMO /8" /2" 2xBMI /8" 3/4" 7/8" 5/8" 3/4" 7/8" 7/8" /8" /2" /8" /2" 7/8" /8" /2" /8" /2" BMO /8" /2" BMI /8" /8" /2" /8" /2" 7/8" /8" /2" /8" /2" BMO /8" /2" 2xBMI /4" 3/4" 7/8" 3/4" 7/8" 7/8" 7/8" /8" /2" /8" /2" 7/8" /8" /2" /8" /2" BMO is the same as the BMO Part umber: Date: 27/2/203 Issue: 2

23 ISOLATOR COMP CABLE SIZE 2.5mm K COMP CABLE SIZE 2.5mm L S C R CR 7.5uF COMPRESSOR O K /C COMPRESSOR SUMP/SEPARATOR HEATERS COMPRESSOR DIRECT O LIE REMOVE LIK WHE OPTIOAL FA SPEED COTROL IS FITTED 3 2 FA CR2 3uF BK WHT CODESER COOLIG FA OPTIOAL FA SPEED COTROLLER KEY, 2, 3 ETC = WIRE UMBER X, X2 ETC = TERMIAL UMBER BK = BLACK WIRE B = BROW WIRE BL = BLUE WIRE WHT = WHITE WIRE CR = COMP RU CAPACITOR CS = COMP START CAPACITOR HP = HP SWITCH LP = LP SWITCH CR2 = FA RU CAPACITOR A, 2 ETC = TERMIAL O COMPOET 3 WIRIG DIAGRAMS Electrical supply to units should be isolated before removing panels. The BMO wiring diagram is located on the inside of front panel. The BMIE wiring diagram is located on the inside of the RH end cover. 3. BMO00- WIRIG DIAGRAM BL B 5 2 OTES...SUPPLY CABLE SIGLE PHASE POWER SUPPLY 230V 50Hz 2...ALL COECTIOS MUST FOLLOW LOCAL ELECTRICAL CODES. 3...ALL CABLE COECTIOS MUST BE CHECKED PRIOR TO COMMISSIOIG 4...SUPPLY SHOULD BE EABLED FOR 3 HOURS BEFORE STARTIG TO ESURE THAT LIQUID REFRIGERAT IS EXPELLED FROM COMPRESSOR. 5A FUSE RELAY CS 2uF X HTR 6 HP LP >P <P BK BL X2 BK BL X3 3 A A2 K 3 X3 LIK X4 4 ITERAL MOTOR PROTECTOR FITTED TO ALL COMPRESSORS X5 WHT UIT FAS MAX OP CURRET START CAP BMO A RU CAP 2 uf 7.5 uf Part o A iss 02 Part umber: Date: 27/2/203 Issue: 2

24 PHASE ISOLATOR COMP CABLE SIZE 2.5mm K COMP CABLE SIZE 2.5mm L CR S COMPRESSOR O K /C COMPRESSOR CRAKCASE HEATER COMPRESSOR DIRECT O LIE REMOVE LIK WHE OPTIOAL FA SPEED COTROL IS FITTED 3 2 FA CR2 3uF BK WHT CODESER COOLIG FA OPTIOAL FA SPEED COTROLLER KEY, 2, 3 ETC = WIRE UMBER X, X2 ETC = TERMIAL UMBER BK = BLACK WIRE B = BROW WIRE BL = BLUE WIRE WHT = WHITE WIRE CR = COMP RU CAPACITOR CR2 = FA RU CAPACITOR HP = HP SWITCH LP = LP SWITCH A, 2 ETC = TERMIAL O COMPOET 3.2 BMO20- WIRIG DIAGRAM BL B R C OTES...SUPPLY CABLE SIGLE PHASE POWER SUPPLY 230V 50Hz 2...ALL COECTIOS MUST FOLLOW LOCAL ELECTRICAL CODES. 3...ALL CABLE COECTIOS MUST BE CHECKED PRIOR TO COMMISSIOIG 4...SUPPLY SHOULD BE EABLED FOR 3 HOURS BEFORE STARTIG TO ESURE THAT LIQUID REFRIGERAT IS EXPELLED FROM COMPRESSOR IMPORTAT : WHE OPTIOAL START KIT IS FITTED CHECK ALL WIRIG COECTIOS ARE CORRECT BEFORE POWERIG UP THE UIT. 5A FUSE 5 RELAY 2 CS OPTIOAL START RELAY OPTIOAL START CAPACITOR X 6 HTR HP LP >P <P BK BL X2 BK BL X3 3 A A2 K 3 X3 LIK X4 4 ITERAL MOTOR PROTECTOR FITTED TO ALL COMPRESSORS X5 WHT UIT FAS UIT FLC (A) START CAP* RU CAP BMO uF 35uF 0.6A *START CAP WITH OPTIOAL START KIT OLY Part o A iss 03 Part umber: Date: 27/2/203 Issue: 2

25 Part umber: Date: 27/2/203 Issue: 2 PHASE ISOLATOR K L COMP CABLE SIZE 2.5mm COMP CABLE SIZE 2.5mm R CR S C COMPRESSOR O OTES...SUPPLY CABLE SIGLE PHASE POWER SUPPLY 230V 50Hz 2...ALL COECTIOS MUST FOLLOW LOCAL ELECTRICAL CODES. 3...ALL CABLE COECTIOS MUST BE CHECKED PRIOR TO COMMISSIOIG 4...SUPPLY SHOULD BE EABLED FOR 3 HOURS BEFORE STARTIG TO ESURE THAT LIQUID REFRIGERAT IS EXPELLED FROM COMPRESSOR. 5...IMPORTAT : WHE OPTIOAL START KIT IS FITTED CHECK ALL WIRIG COECTIOS ARE CORRECT BEFORE POWERIG UP THE UIT. 5A FUSE 5 RELAY 2 CS OPTIOAL START RELAY OPTIOAL START CAPACITOR X 6 K /C HTR COMPRESSOR SUMP/SEPARATOR HEATERS HP >P LP <P BK BK X2 BL BL X3 3 A K A2 3 COMPRESSOR DIRECT O LIE X3 LIK X4 4 L FA CODESER COOLIG FA ITERAL MOTOR PROTECTOR FITTED TO ALL COMPRESSORS REMOVE LIK WHE OPTIOAL FA SPEED COTROL IS FITTED 3 2 OPTIOAL FA SPEED COTROLLER BMO uF 40uF BMO uF 50uF BMO uF 50uF BMO uF 55uF UIT FAS UIT FLC (A) START CAP* RU CAP *START CAP WITH OPTIOAL START KIT OLY KEY, 2, 3 ETC = WIRE UMBER X, X2 ETC = TERMIAL UMBER BK = BLACK WIRE BL = BLUE WIRE WHT = WHITE WIRE CR = COMP RU CAPACITOR HP = HP SWITCH LP = LP SWITCH A, 2 ETC = TERMIAL O COMPOET Part o A iss BMO50- TO 300- WIRIG DIAGRAM

26 ISOLATOR K R COMP CABLE SIZE 2.5MM COMP CABLE SIZE 2.5MM S L L T L3 COMPRESSOR O 5A FUSE OTES...SUPPLY CABLE 3 PHASE & EUTRAL POWER SUPPLY 400V ± 0%-3PH-50HZ. 2...ALL COECTIOS MUST FOLLOW LOCAL ELECTRICAL CODES. 3...ESURE CORRECT PHASE ROTATIO.(B, BK, GY). 4...ALL CABLE COECTIOS MUST BE CHECKED PRIOR TO COMMISSIOIG 5...SUPPLY SHOULD BE EABLED FOR 3 HOURS BEFORE STARTIG TO ESURE THAT LIQUID REFRIGERAT IS EXPELLED FROM COMPRESSOR. 6...FAILURE TO COMPLY WITH THE ABOVE MAY IVALIDATE WARRATY. X HTR 6 K /C COMPRESSOR SUMP/SEPARATOR HEATERS HP LP >P <P BK BL X2 BK BL X3 3 A A2 K 3 COMPRESSOR DIRECT O LIE X3 LIK X4 4 L FA CODESER COOLIG FA ITERAL MOTOR PROTECTOR FITTED TO ALL COMPRESSORS REMOVE LIK WHE OPTIOAL FA SPEED COTROL IS FITTED 4 L FA 3 2 CODESER COOLIG FA 2 (IF FITTED) OPTIOAL FA SPEED COTROLLER UIT FAS UIT FLC (A) BMO-50-3 BMO BMO BMO BMO BMO BMO KEY, 2, 3 ETC = WIRE UMBER X, X2 ETC = TERMIAL UMBER BK = BLACK WIRE BL = BLUE WIRE WHT = WHITE WIRE HP = HP SWITCH LP = LP SWITCH A, 2 ETC = TERMIAL O COMPOET PART O A ISS BMO50-3 TO THREE PHASE WIRIG DIAGRAM Part umber: Date: 27/2/203 Issue: 2

27 3.5 BMI ALL EVAPORATORS WIRIG DIAGRAM Part umber: Date: 27/2/203 Issue: 2

28 Model umber BMIE BMIE BMIE BMIE BMIE BMIE Model umber BMO-00- BMO-20- BMO-50- BMO-50-3 BMO-200- BMO BMO-250- BMO BMO-300- BMO BMO BMO Min Main Fuse /MCB Min Main Fuse /MCB Total Unit FLC (A) Total Unit FLC (A) Conn Sizes Inlet ODS Supply Outlet ODS 5/8" 3/4" 3/4" 7/8" 7/8" /8" 230V ph 50 Hz 230V ph 50 Hz 230V ph 50 Hz 45V 3ph 50 Hz 230V ph 50 Hz 45V 3ph 50 Hz 230V ph 50 Hz 45V 3ph 50 Hz 230V ph 50 Hz 45V 3ph 50 Hz 45V 3ph 50 Hz 45V 3ph 50 Hz ominal Air Volume m3/s Compressor Max FLC LRA Fan FLC (Total) (A) Start Cap (uf) 2.0 /A /A /A /A /A /A /A /A /A /A /A Fan SC (Total) Run Cap (uf) /A 45 /A 50 /A 55 /A /A /A (A) Fan Capacitor (uf) Conn Sizes Suction Conn (FLR) /2" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 7/8" 7/8" Liquid Conn (FLR) /2" /2" Heater Amps 230V / 50Hz ominal Air Volume m3/s Height +30mm for Drain Conn. Fan FLC (Total) (A) (mm) Fan SC (Total) (A) Depth (mm) Fan Cap (uf) Length (mm) Height (mm) Depth (mm) Mounting Positions Depth (mm) Length inc Vv s (mm) Width (mm) Dry Weight (kg) Mounting Positions Depth (mm) Width (mm) Dry Weight (kg) PHYSICAL DATA BMI / BMO Part umber: Date: 27/2/203 Issue: 2

29 5 GUARATEE Failure to install set up or put to work any part of the equipment in a manner specified in the installation and maintenance instructions could invalidate the guarantees. Part umber: Date: 27/2/203 Issue: 2

30 The Wolseley Center Harrison Way Spa Park Royal Leamington Spa CV3 3HH Phone: +44 (0) For further information please contact your nearest Climate Center branch GEA Searle Davis Way, ewgate Lane, Fareham Hampshire, PO4 AR Phone: +44 (0) Website: Please refer to the website: Part umber: Date: 27/2/203 Issue: 2