PHVR RECESSED HEAT PUMP RANGE AIR CURTAINS INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS For use with Mr Slim units PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION Thermoscreens Ltd St. Mary’s Road Nuneaton Warwickshire England CV11 5AU Email: sales@thermoscreens.com Tel: +44 (0) 24 7638 4646 Fax: +44 (0) 24 7638 8578 www.thermoscreens.
Thermoscreens / Mitsubishi Electric Heat Pump Warm Air Curtain System Communications Link Manual On/Off Control and Permanent mains electrical supply (from local switched spur) for x Fans x Mitsubishi Electric Interface PCB x Defrost electric heaters (if used) Heat Setting Control Heat Pump Air Curtain Optional BMS Control Interface Board Mitsubishi Electric Outdoor Unit Manual Room Control Procon A32/M The Heat Pump Warm Air Curtain System consists of :• a Thermoscreens 'PHVR Air Curtain' fitted w
UNPACKING THE PHVR HEAT PUMP AIR CURTAIN The following items are supplied and packaged within the air curtain box. PHVR Recessed Heat Pump Air Curtain Manual Room Control Void Filter Air Discharge Air Discharge The Recessed Grille is packed in a separate box but comes with the air curtain:Recessed Grille with Filter If anything is missing or damaged please contact your place of purchase immediately Air Discharge Air Inlet There will also be a “Mr Slim Outdoor Unit” supplied by Mitsubishi Electric.
INSTALLATION OF THE HEAT PUMP AIR CURTAIN The air curtain is designed to be recessed within ceiling voids or bulkheads within a building and located horizontally over a doorway. It must not be installed outside of the building. The air curtain is intended for use as a heating only unit. Location The air curtain must be mounted so the recessed grille is between 1.8m minimum and 3.5m maximum above floor level and situated as close to the doorway as possible.
Ceiling Suspension Make the cut-out in the ceiling to the dimensions given in Figure 1, overleaf being as accurate as possible. The air curtain can be manoeuvred straight up through the ceiling cut-out. Alternatively the ceiling can be fitted after the air curtain is installed. Bear in mind it will be necessary to carry out pipework brazing operations above the air curtain once it is located in position. Ensure there is sufficient height clearance within the ceiling void to do this.
9901030-2 40-65mm CEILING LEVEL Alternative position for Electrical Supply and Control Wiring Inlets Clearance from side of unit for air to enter from ceiling void 1095 2290 800 1690 1655 445 N/A 1190 1155 445 B(mm) C(mm) Cut-Out Length(mm) in Ceiling Width(mm) 55 314 140 A Holes for M10 drop rods 4 for 1m unit, 6 for 1.
Fitting the Recessed Grille The recessed grille consists of a frame and grille core with filter attached to it. Fix the four fixing brackets to the grille frame using an M4 screw to fit each fixing bracket. Note which fixing brackets go where (see photo), there are two shapes. Less angled bracket More angled bracket Remove the grille core from the grille frame by unfastening the two conical bolts fitted at each end of the grille core using an 8mm spanner.
Mitsubishi Electric Outdoor Unit The Mitsubishi Electric Outdoor Unit is selected to match its refrigerant heat output to the size of the Air Curtain. See table below for size of outdoor unit to be used together with performance data for the air curtain. Heat Output (kW) Air Curtain Mr Slim Outdoor Unit @outdoor air 7/6°C db/wb Full Heat Half Heat Max. Air Volume Flow Rate Max. Noise Level (m3/h) dB(A) @3m PHV1000R DXE HO PUHZ-RP71VHA 8.6 5.34 1400 56 PHV1500R DXE LO PUHZ-RP71VHA 10.1 5.
manufactured in accordance with the Pressure Equipment Directive and the installation must be carried out to a good standard of workmanship. Use a heat sink on the copper pipes when brazing to reduce the transfer of heat to the inside of the air curtain where sensitive components are located.
Air Curtain PHV1000 DXE HO PHV1500 DXE LO PHV1500 DXE HO PHV2000 DXE LO PHV2000 DXE HO 230V/1ph/50Hz if defrost electric heaters are not used Rated Electrical Rated Current (A) Power Input (kW) 0.3 0.35 0.35 0.5 0.5 400V/3ph/50Hz if defrost electric heaters are required Rated Electrical Rated Current per Power Input (kW) phase (A) 1.3 1.8 1.8 2.7 2.7 4.8 7.8 7.8 9.5 9.5 7.8 12.7 12.7 15.7 15.
If a BMS or Centralised Controller is to be used instead of Manual Control it is not necessary to wire to terminals 1-4. NB. Do not install Manual Room Control and BMS/Centralised Control together as they can interfere with each other. Recommended wire size for electrical connections are as follows: 1 1.0mm2 2 2.5mm2 max for access 3 0.75mm2 Do not use cable size of more than 2.5mm2 or connecting the cable is difficult.
9901030-2 K1 1.3A for PHV1000DX 1.8A for PHV1500DX 2.7A for PHV2000DX L2 and L3 are not then needed L1 is then 230V/1ph/50Hz OPTIONAL LOW SPEED CONTROLLER PROCON A32/M 2-core double insulated flex (carries signal voltages) 1 2 A-CONTROL SUB INTERFACE E S1 S2 S3 3 4 Electrical Supply for Outdoor Unit 400V/3ph/50Hz or 230V/1ph/50Hz L1 L2 L3 N SITE WIRING WIRING DIAGRAM – PHVR RECESSED HEAT PUMP AIR CURTAIN K1 1m unit 3 x 1.5kW = 4.5kW 1.5m unit 3 x 2.5kW = 7.5kW 2m unit 3 x 3.
COMMISSIONING THE HEAT PUMP AIR CURTAIN Ensure that the electrical supply to both the Mitsubishi Electric Outdoor Unit and the local electrical supply to the Air Curtain are switched off. Air Curtain Checks Check that the components inside the air curtain are as shown in the picture below. Check that the thermal overheat cut-out switch has not ‘tripped’. Push down on the red button on the top of the thermal overheat switch - if it has tripped it will click back on.
BMS Control or Centralised Controller On the Mitsubishi Electric Interface PCB check that the BMS Fan-Run Connection is plugged into position CNX1 (as shown on previous page and wiring diagram).
required (see page 17). Refit the recessed grille core with air filter (see “To gain access inside the Air Curtain” page 9). Power-up both the Mitsubishi Electric Outdoor Unit and Air Curtain and re-check the operation of the unit. Manual Room Control On the Mitsubishi Electric Interface PCB the BMS Fan-Run Connection should be 'parked' at position CNX5 (green), see Wiring Diagram – Page 12.
Note 1: The set point and fan speed of the air curtain cannot be altered through the Manual Room Control. The set point is hard coded to 28ºC * via dip switch SW2 on the Mitsubishi Interface PCB in the air curtain. The fan speed is set manually at commissioning using the 3 speed fan switch inside the air curtain, as described above.
indicator schedules are available, and can be selected by changing the ‘jumper’ position (marked 1, 2 or 3) on the Filter Indicator pcb. Filter Indicator Schedule Jumper position Doublefrequency Default Halffrequency • • • • • • • • • • • • 1 23 1 23 1 23 Inlet grille vacuum interval 60 hrs 120 hrs 240 hrs Filter service interval 240 hrs 480 hrs 960 hrs To access the Filter Indicator pcb to change jumper position :- Switch off the electrical power to the Heat Pump Air Curtain.
switch SW2 on the Mitsubishi Interface PCB in the air curtain (see Page 14). It is vital they understand that the air curtain must not be run in COOL or AUTO mode. Ensure that all instructions and manuals are handed to the end user or their representative.
SERVICING THE HEAT PUMP AIR CURTAIN Vacuum Clean the Air Inlet Grilles / Filters (Weekly, or when the Filter Dirty Indicator shows PERMANENT RED) With the air curtain switched OFF, a vacuum cleaner with an extension tube and brush attachment at its end should be used to clean the face of the air inlet grille and the filter at the back of the grille. This is important to minimise the build-up of dust and lint on the air filter which will affect the performance of the air curtain.
The grille filter can now be unclipped from the grille and brushed and vacuum cleaned. Looking up inside at the front edge of the unit (the edge furthest from the doorway) there are 2 or 3 screws inset into the frame (see photo). Loosen each of these screws by 2 turns. Reach up and pull the metal retaining strip over to one side and remove the retaining strip. Pull the void filter outwards at the bottom and then remove from the air curtain. It can then be brushed and vacuum cleaned.
Fault Conditions If the Thermoscreens Heat Pump Warm Air Curtain System does not operate as expected refer to the fault finding table below: Symptom Possible Cause Electrical power is not switched on at both the Mitsubishi Electric Outdoor Unit and at the local electrical isolator next to the Thermoscreens Air Curtain Air curtain does not operate BMS Control: Air curtain is set to 'Off'.
Warranty If any problems are encountered with the heat pump warm air curtain please contact your Mitsubishi Electric Service Agent. Care has been taken in compiling these instructions to ensure they are correct, although Thermoscreens Ltd. disclaims all liability for damage resulting from any inaccuracies and/or deficiencies in this documentation. Thermoscreens Ltd. retain the right to change the specifications stated in these instructions. Thermoscreens Ltd St.
Thermoscreens Ltd St.
