ErP compliant HP HEAT PUMP RANGE AIR CURTAINS INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS For use with Mr Slim Outdoor 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 Mr Slim HP Heat Pump Air Curtain System CONTENTS Page Air Curtain System Schematics Design Information Unpacking the Air Curtain 3 5 8 INSTALLATION Installation of the Air Curtain Figure 2 – Dimensions of HP Air Curtain Mitsubishi Electric Outdoor Unit Refrigerant Pipework To gain access inside the Air Curtain Electrical Supply and Wiring to the Air Curtain Wiring Diagram 1 (Defrost Cycle Auxiliary Heater disabled - as supplied) Wiring Diagram 2 (Defrost Cycle Auxiliary
Thermoscreens / Mitsubishi Electric Mr Slim HP Heat Pump Air Curtain System with Weather Compensation Control or Discharge Air Temperature Control) Air Curtain is supplied set-up to operate on either of these control modes Permanent electrical supply (from local switched spur) S2, S3 communication link with outdoor unit Permanent electrical supply (from local switched spur) 1-phase for air curtain as supplied, 3-phase only if defrost cycle auxiliary heater is needed (site change then required to air curt
Thermoscreens / Mitsubishi Electric Mr Slim HP Heat Pump Air Curtain System with Inlet Air Temperature Control or Room Air Temperature Control Air Curtain is modified during commissioning to operate on these control modes Permanent electrical supply (from local switched spur) S2, S3 communication link with outdoor unit Permanent electrical supply (from local switched spur) 1-phase for air curtain as supplied, 3-phase only if defrost cycle auxiliary heater is needed (site change then required to air curta
DESIGN INFORMATION AS SUPPLIED the air curtain operates on a 1 phase electrical supply (1L+N+E) from a local switched spur which provides power for fans and controls. There is an integral defrost cycle auxiliary heater located inside the air curtain but this is ‘disabled’ as supplied.
The air curtain can also be set up on site during commissioning to operate under Inlet Air Temperature Control or Room Air Temperature Control and is then used with a Mitsubishi Electric PAR-30 MAA Remote Controller.
be located inside the right hand end of the air curtain or in a remote location outside of the unit if required. It must be of sufficient capacity, see Page 19, self priming and capable of providing the appropriate suction head so the pump will lift condensate out of the air curtain, particularly if it is in a remote location. There are two hole penetrations at the right hand end of the air curtain for condensate pipework to pass through, see Figure 2, Page 11.
UNPACKING THE AIR CURTAIN The following items are supplied and packaged within the air curtain box :HP Heat Pump Air Curtain Wall Brackets and Fixing Bolts Please note, plastic end caps are supplied loose to be fitted during installation for if air curtain is to be wall mounted Remote 3-Speed Fan Switch If remote fan speed control is required by the end user NB Industry standard is to have High/Low fan speed control via a door switch or single speed set at commissioning If anything is missing or damag
The installer may also need to supply and install the following optional items:Door Switch – for energy efficient, noise friendly, fan speed control, Door open – Higher fan speed Door shut – Lower fan speed Condensate Pump – self priming with cooling mode detection, alarm system and pump overrun Example Switch only Gives industry standard fan speed control – see wiring diagrams on Pages 16 & 17 and text on Pages 18 & 22 for more information If Air Curtain is to be operated in COOL mode and gravity drain
INSTALLATION OF THE AIR CURTAIN The air curtain is designed to be surface mounted inside a building and located horizontally over a doorway. It must not be installed on the outside of the building, or built into a cabinet or recessed in anyway. Location The air curtain must be mounted so the discharge grille is located up to 3.2m maximum above floor level and as close to the doorway as possible. It must be installed level or condensate may leak out if used for cooling.
T9901085-1-3 UK 20mm hole on top for pumped condensate disposal (if cooling) 225 M 45 45 K 45 1.5m only F H 200 45 105 50 M (mm) L 45 - 8 in. 875 570 in. 5 8 80 334 258 299 7 204 952 1904 2 in. 1 80 K (mm) 2 in. 359 1 359 253 267 333 J (mm) 442 I (mm) H (mm) in. 222 5 182 5 F (mm) 8 699 E (mm) in.
Mitsubishi Electric Outdoor Unit The Mitsubishi Electric Mr Slim 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. Air Curtain Air Curtain Parameters Maximum Maximum Maximum Maximum Effective Mr Slim Cooling Air Volume Noise Width of Outdoor Unit Heating Output Output Flow Rate Level Airstream (kW) (kW) (m3/h) dB(A) @3m (m) HP1000 DXE PUHZ-RP71 8.3 7.
To gain access inside the Air Curtain To gain access for connection of the electrical supply, controls wiring and to work on the unit during commissioning, remove the air inlet grilles and the bottom access panel. First remove the plastic end caps at each end of the unit, if already fitted, by pulling off to the side (see picture). Then remove each inlet grille in turn with its filter by unfastening the quarter-turn Philips Head fastener at the bottom corner of the grille. Use a Philips No.
Electrical Supply and Wiring to the Air Curtain This must be carried out AFTER the connection of the refrigerant pipework. All electrical wiring and connections MUST be carried out by a competent qualified electrician in accordance with the latest edition of the IEE wiring regulations and/or local statutory regulations.
2) If the defrost cycle auxiliary heater is to be enabled during site commissioning (400V/3ph/50Hz electrical supply from separate local isolator), see Wiring Diagram 2, Page 17 Connect to terminals Earth, L1, L2, L3 and N with a 3phase electrical supply. Connect terminals S2 and S3 from the outdoor unit to terminals S2 and S3 on the air curtain – Communication link between outdoor unit and the air curtain.
K1 DEFROST CYCLE AUXILIARY HEATER All other dips- OFF For Inlet Air or Room Control, PAR-30: SW1-2, 1-3, ON Red Red Black Thermistor (TH5) - Factory fitted RC Violet Violet Thermistor (Discharge Air or Inlet Air) - Factory fitted FILTER INDICATOR PCB CONTACTOR 21 11 A1 (2m unit only) Fan motor 2 1 1 230v AC RELAY Fan motor 1 22 24 12 14 A2 Blue Blue (Neutral) Brown (High) Grey Violet ~ Orange Red (Low) Blue (Neutral) Brown (High) Grey Violet ~ Orange Red (Low) Brown 0 Blue 6
K1 All other dips- OFF Red Red Black Red Red Violet Violet FILTER INDICATOR PCB CONTACTOR Thermistor (Discharge Air or Inlet Air) - Factory fitted Thermistor (Liquid) - Factory fitted Black RC Black CONDENSATE ALARM Closed Circuit = Alarm (Compressor Stops) Fan Control Yellow A1 13NO K1 A2 14NO 21 11 A1 (2m unit only) Fan motor 2 1 Blue (Neutral) Brown (High) Grey Violet ~ Orange Red (Low) Blue (Neutral) Brown (High) Grey Violet ~ Orange Red (Low) 1 230v AC RELAY Fan motor 1
Wiring of Air Curtain Fan Speed As delivered the air curtain is link wired to operate on a single fan speed at its medium speed, see picture opposite. Current thinking for air curtain technology, however, is to have a Door-Switch wired to switch the unit between a Higher fan speed - Door Open and a Lower fan speed - Door Closed. This is both energy efficient and noise friendly.
Diaphragm type. It is recommended that the condensate pump has the facility so it only operates when the air curtain is in cooling mode by detection of water in the drain tray or by detecting a cooling differential in the airflow. It should also have a pump overrun to empty the drain tray as much as possible when the air curtain is switched off. We recommend the Blue Diamond rotary diaphragm type with cooling signal sensor (drainStik) manufactured by Charles Austen Pumps Ltd. (www.miniblue.co.uk).
COMMISSIONING THE AIR CURTAIN Ensure that the electrical supply to the Mitsubishi Electric Outdoor Unit and, if applicable, the 3-phase 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. If the defrost cycle auxiliary heater has been enabled check that the thermal overheat cutout switch(s) has not ‘tripped’. Press the reset button at the top of the unit (2 on a HP2000 DXE unit).
Dip Switch Settings and Air Temperature Sensor Position As supplied the air curtain is set-up to be operated under Weather Compensation Control (HEATING ECO) or Discharge Air Temperature Control (HEATING) and the air temperature sensor (marked red) is located in a temperature pocket in the air discharge plenum of the unit.
Selecting the Fan Speeds of the Air Curtain The fan motor(s) in the air curtain is a 5-speed motor and fan speeds can be re-selected at commissioning to suit the installation, both to suit the outdoor environmental conditions and for indoor noise levels.
The table below provides guidance as to how the fan speeds can be set. WARNING: There are two motors on the HP2000DXE model, make sure both motors are wired up in exactly the same way or the motors will overheat with possible damage. Fan Speed Motor Speed Tapping Maximum air curtain mounting height (air curtain as delivered) (see Wiring Diagram 1, Page 18 or Wiring Diagram 2, Page 19) (m) HIGH (black wire) MEDIUM (blue wire) LOW (yellow wire) 1 – (Highest speed) 3.2 2 2.8 3 2.4 4 2.
Starting the Heat Pump System Carry out a final inspection to ensure that all wiring is in accordance with Wiring Diagram 1 on Page 16 or wiring Diagram 2 on Page 17 and that all connections have been properly made. Ensure that the refrigerant system is complete, there are no leaks and there is sufficient charge of refrigerant R410A. Switch on electrical power to the Mitsubishi Electric outdoor unit and the local electrical supply to the air curtain.
For the Air Curtain to be used for Weather Compensation Control (HEATING ECO mode) with a PAR-W21MAA Remote Controller, the Heating Curve and Function Limits must now be set-up as follows :Refer to PAR-W21MAA diagram, Figure 3, and typical heating curve in Figure 4 and set up the Heating Curve: Air Curtain Discharge Air Temperature (during heating curve set-up) Outdoor Air Temperature (during heating curve set-up) F 40°C I 15°C A E G Figure 3 C D J NB.
40 2 Heated Air Curtain Figure 4 Weather Compensation Control (HEATING ECO mode) typical heating curve Air Curtain 30 Discharge Air Target Temp. (°C) 20 Ambient Air Curtain 4 1 -5 0 3 5 10 15 20 Outdoor Air Temperature (°C) In case of difficulty refer to the Mitsubishi Electric instruction booklet that comes with the PAR-W21MAA Remote Controller, Section 7 – Initial Setting, Page 22. Check the operation of the air curtain in Weather Compensation Control (HEATING ECO mode).
If the Air Curtain is set-up for :- Inlet Air Temperature Control or Room Air Temperature Control (air curtain has been modified during commissioning) with a PAR-30MAA Remote Controller, BMS or Centralised Controller :Switch the Mode Button on the PAR-30MAA Remote Controller to ‘HEAT’ and adjust the target temperature to 28°C maximum setting using the + Temp. Button.
If the air curtain is to be operated from a BMS System or Centralised Controller this should be configured so that the air curtain can only operate in HEAT or FAN mode if it is not fitted with a condensate disposal system. The air curtain should only be configured to operate in COOL mode if it is fitted with a condensate disposal system. Switch off the electrical power to the Air Curtain and the Mitsubishi Electric Outdoor Unit.
The factory set default schedule is suitable for most applications. However, the actual frequency of cleaning required will depend on the environment. Two alternative filter indicator schedules are available, and can be selected by changing the ‘jumper’ position (marked 1, 2 or 3) on the Filter Indicator PCB.
Hand-over to End-User Before leaving site it is important that there is a 'Hand-Over Meeting' to hand-over the heat pump system and air curtain installation to the end user or their representative. This should include a full and clear explanation of how the system operates and a demonstration showing the air curtain running. Be sure to explain the Filter Indicator Schedule, that the air inlet grilles and air filters must be regularly vacuum cleaned and the unit serviced at regular intervals.
USER INSTRUCTIONS FOR THE AIR CURTAIN For Weather Compensation Control (HEATING ECO mode) or Discharge Air Temperature Control (HEATING mode) To Switch On and Off: Turn the air curtain ON by pressing the ON/OFF Button on the PAR-W21MAA Remote Controller and the air curtain fans will start within a few seconds. If a 3-Speed Fan Switch is fitted adjust the fan speed to suit using the slider switch.
USER INSTRUCTIONS FOR THE AIR CURTAIN For Inlet Air Temperature Control or Room Air Temperature Control To Switch On and Off: Turn the air curtain ON by pressing the ON/OFF Button on the PAR-30MAA Remote Controller and the air curtain fans will start within a few seconds. If a 3-Speed Fan Switch is fitted adjust the fan speed to suit using the slider switch.
SERVICING THE AIR CURTAIN Vacuum Clean the Air Inlet Grilles / Filters (Fortnightly, 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 grilles. This is important to minimise the build-up of dust and lint on the air filters inside the inlet grilles which will affect the performance of the air curtain.
Remove the air filters from the air inlet grilles by gently prizing them free as shown. Gently vacuum clean and refit the filters into the curved air inlet grilles. The filters are durable but may need to be replaced after a number of service intervals. To remove the bottom access panel unfasten the access panel securing screws, one at each end, plus two in the centre (HP1500 DXE and HP2000 DXE units) and slide the panel out forwards (see picture).
Using a 10mm spanner loosen the two bolts, one at each end of the air discharge opening, by 2 turns. Do not remove these two bolts completely. Remove the row of fixing screws along the whole length of the drain tray (see picture). The drain tray now hinges down along its front edge and the inside surface of the tray can be cleaned. Remove all debris and deposits from the coil face, drain tray, outlet pipe, condensate hoses and the condensate disposal system. Check there are no kinks in condensate hoses.
Fault Finding If the Thermoscreens Heat Pump Air Curtain System does not operate as expected refer to the fault finding table below: Symptom Possible Cause Action Required Switch on power to Mitsubishi Electric Outdoor Unit and wait for system to boot-up Switch on air curtain using the PAR-W21 or PAR-30 Remote Air curtain is not switched On Controller, BMS System or Centralised Controller Air Curtain fans are not wired to Wire in the wire link or a 3operate, no wire link on fan terminals in Speed Fan Swi
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.
