Mitsubishi Electric Thermoscreens VRF HP Installation, Operation & Maintenance Instructions Manual

Mitsubishi Electric Thermoscreens VRF HP Installation, Operation & Maintenance Instructions Manual

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ErP2015
compliant
VRF HP HEAT PUMP RANGE AIR CURTAINS
INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
For use with City Multi (VRF) systems
PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION
Thermoscreens Ltd
St. Mary's Road Nuneaton
Warwickshire England
CV11 5AU
English
Email:
sales@thermoscreens.com
Tel: +44 (0) 24 7638 4646
Fax: +44 (0) 24 7638 8578
www.thermoscreens.com
T9901075-2-3 UK
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  • Page 1 ErP2015 compliant VRF HP HEAT PUMP RANGE AIR CURTAINS INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS For use with City Multi (VRF) systems PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE ATTEMPTING INSTALLATION Thermoscreens Ltd St. Mary’s Road Nuneaton Warwickshire England CV11 5AU English Email: sales@thermoscreens.com Tel: +44 (0) 24 7638 4646...
  • Page 2: Table Of Contents

    Thermoscreens / Mitsubishi Electric City Multi (VRF) HP Heat Pump Air Curtain System CONTENTS Page Air Curtain System Schematics Design Information Unpacking the Air Curtain INSTALLATION Installation of the Air Curtain Figure 1 – Dimensions of VRF HP Air Curtain...
  • Page 3: City Multi (Vrf) Hp Heat Pump Air Curtain System

    The City Multi Y Series Heat Pump Air Curtain system consists of :-  one or more Thermoscreens VRF HP Heat Pump (heating and cooling) Air Curtains *  one or more Mitsubishi Electric City Multi Y/WY-Series Compressor Units ...
  • Page 4 The City Multi R2/WR2-Series heat recovery system with Heat Pump Air Curtain(s) consists of :-  one or more Thermoscreens VRF HP Heat Pump (heating and cooling) Air Curtains *  one or more Mitsubishi Electric City Multi R2/WR2-Series Compressor Units ...
  • Page 5: Design Information

    Electric City Multi (VRF) system using a Mitsubishi PAR-31MAA or PAR-U02MEDA Remote Controller or a Mitsubishi Electric BMS or Centralised Controller. Refer to a Mitsubishi Electric agent if the air curtain is to be controlled via a Building Management System (BMS) or Centralised Controller.
  • Page 6 NB. The defrost cycle auxiliary heater should not be site enabled during commissioning on R2, WY and WR2 systems. On R2 systems the LEV in the air curtain closes during system defrost and defrost does not occur on WY and WR2 systems. Point of Information: If used, an auxiliary defrost heater may seem counter-productive for a heat pump system.
  • Page 7 An alternative is to have a manual shut-off valve fitted into the refrigerant pipework to the air curtain. The air curtain is designed only for use with a Mitsubishi Electric City Multi (VRF) system for use on R410A. The complete Thermoscreens air curtain / Mitsubishi Electric heat pump system, including fridge pipework, wiring, controls, etc.
  • Page 8: Unpacking The Air Curtain

    Twin LEV Kit – P200 units If anything is missing or damaged please contact your place of purchase immediately. There will also be a 'City Multi (VRF) heat pump system' supplied by Mitsubishi Electric. The Installer will also need to supply and install the following:-...
  • Page 9 Mitsubishi Electric refrigeration contractor. IMPORTANT This Heat Pump Air Curtain is intended only for use with a Mitsubishi Electric City Multi (VRF) system, for use on R410A. These instructions must be read in conjunction with the separate Mitsubishi Electric City Multi (VRF) instructions.
  • Page 10: Installation Of The Air Curtain

    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 Recommended 250mm min.
  • Page 11 Recommend 250 minimum for pipes 20mm hole on top for pumped condensate disposal (if cooling) T9901075-2-3 UK Page 11 of 38...
  • Page 12: Mitsubishi Electric Compressor Unit

    This must be carried out before connection of any electrical and controls cables and in accordance with the Instructions that come with the Mitsubishi Electric City Multi system. This work must only be undertaken by a Mitsubishi Electric approved Contractor.
  • Page 13 With P140 index air curtains although a maximum P140 Index is possible from 1 pair of ports it is recommended that 2 pairs of ports on the BC Controller are used to achieve the correct output, contact Mitsubishi Electric for advice. Pipework from P200 Index air curtains (see Table 2) must go to 2 pairs of ports on the BC Controller to achieve the correct output.
  • Page 14: To Gain Access Inside The Air Curtain

    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).
  • Page 15: Electrical Supply And Wiring To The Air Curtain

    Connect to terminals Earth, L1 and N with a 1- phase electrical supply. Connect a Mitsubishi Electric PAR-31MAA Remote Controller to terminals 1 and 2 on the air curtain, or a PAR-U02MEDA to terminals M1 and M2. Connect the M-Net 2-core cable to terminals M1 and M2 on the air curtain –...
  • Page 16 Connect to terminals Earth, L1, L2, L3 and N with a 3-phase electrical supply. Connect a Mitsubishi Electric PAR-31MAA Remote Controller to terminals 1 and 2 on the air curtain, or a PAR-U02MEDA to terminals M1 and M2.
  • Page 17 Yellow Blue Black 230V Black rectangle indicates moveable head of dip switch T9901075-2-3 UK Page 17 of 38...
  • Page 18 Yellow Blue Black MOVE VIOLET NEUTRAL WIRE FROM TERMINAL 14NO TO TERMINAL A2 FOR DEFROST HEATER TO WORK 230V Black rectangle indicates moveable head of dip switch T9901075-2-3 UK Page 18 of 38...
  • Page 19 Speed Adjust 230V AC Relays CONT GND A/T 230V Black rectangle indicates moveable head of dip switch T9901075-2-3 UK Page 19 of 38...
  • Page 20 Speed Adjust 230V AC Relays CONT GND A/T MOVE VIOLET NEUTRAL WIRE FROM TERMINAL 14NO TO TERMINAL A2 FOR DEFROST HEATER TO WORK 230V Black rectangle indicates moveable head of dip switch T9901075-2-3 UK Page 20 of 38...
  • Page 21: Par-31Maa Remote Controller

    Thermoscreens) must be supplied and fitted by the installer. This is wired to terminals 1 and 2 on the air curtain using 2-core cable. Refer to the Mitsubishi Electric instructions that come with the PAR-31MAA remote controller for the installation and wiring of the controller.
  • Page 22 This will stop the air curtain cooling if the condensate drain tray is in danger of flooding, bringing up an error code on the Mitsubishi Electric system (air curtain fans will continue to operate). Other indoor units on the same City Multi system are unaffected if the air curtain condensate alarm occurs.
  • Page 23: Air Curtain Checks

    Thermoscreens Air Curtain. This provides control and communication between the Mitsubishi Electric City Multi system and the Air Curtain Indoor Unit. It is held in place by a fixing screw located in the left-hand end panel of the air curtain under the left-hand plastic end cap.
  • Page 24 Ensure cables are not trapped inside and refit the retaining screw. If not already done wire a Mitsubishi Electric PAR-31MAA Remote Controller to terminals 1 and 2, or a PAR-U02MEDA Remote Controller to terminals M1 and M2 (see Wiring Diagram for details).
  • Page 25: Selecting The Fan Speeds Of The Air Curtain (Ac Fans)

    AC Fans 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.
  • Page 26: Setting The Fan Speeds Of The Air Curtain (Ec Fans)

    EC Fans Setting the Fan Speeds of the Air Curtain – If EC fans are fitted in the air curtain there is a speed control PCB fitted inside the unit with adjuster knobs to set the High, Medium and Low fan speeds available from the PAR- 31MAA or PAR-U02MEDA remote controller.
  • Page 27: Starting The Heat Pump System

    R410A. Switch on electrical power to the Mitsubishi Electric compressor unit and other City Multi system components. Wait 30 seconds and switch on electrical power to the air curtain at the local isolator.
  • Page 28 If the end user is to operate the air curtain with a Remote Controller it can be set-up to monitor room air temperature at the controller instead of return air temperature at the air inlet of the air curtain. If this is required see the Mitsubishi Electric remote controller instructions for details.
  • Page 29: Filter Dirty Indicator

    NB.The filter dirty interval feature on the Mitsubishi Electric remote controller is not available. The indicator states are outlined below:...
  • Page 30 Replace the bottom access panel, air inlet grilles (with filters) and plastic end caps (see ‘To gain access inside the Air Curtain’, page 14). Power-up both the Mitsubishi Electric City Multi system and the Air Curtain and re-check the operation of the unit.
  • Page 31: Hand-Over To End-User

    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.
  • Page 32: User Instructions For The Air Curtain

    USER INSTRUCTIONS FOR THE AIR CURTAIN To Switch On and Off: Turn the air curtain ON by pressing the ON/OFF Button on the PAR-31MAA (or PAR- U02MEDA) Remote Controller and the air curtain fans will start within a few seconds. As set up by the Commissioning Technician the air curtain will operate in Heat mode, automatically heating as required, with a target temperature of 24°C - all other buttons on the Remote Controller are locked out.
  • Page 33 ONLY if the Filter Dirty Indicator shows PERMANENT RED Reset the Filter Dirty Indicator after cleaning by a quick press of the Reset Button. NB.The filter dirty interval feature on the Mitsubishi Electric remote controller is not available. Servicing the Air Curtain...
  • Page 34 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 (VRF HP1500DXE and VRF HP2000DXE units) and slide the panel...
  • Page 35 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.
  • Page 36: Fault Finding

    Possible Cause Action Required Electrical power is not switched on to Switch on power to all the Mitsubishi Electric City Multi system components in the heat pump and at the local electrical isolator next to system and wait for system to...
  • Page 37 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.
  • Page 38 If alterations are made to the machinery without prior consultations with us, this declaration becomes invalid. Designation of Equipment : THERMOSCREENS HEAT PUMP AIR CURTAINS used with a MITSUBISHI ELECTRIC CITY MULTI HEAT PUMP SYSTEM Series Type : VRF HP1000 DXE; VRF HP1000R DXE; VRF HP1500 DXE;...
  • Page 39 Related Links Model Number: VRF HP2000 DXE Premier Inn, City Multi VRF (R2 Series), London The Co-operative, City Multi VRF (R2 Series), London VRF HP DXE Heat Pump Air Curtain Instructions (T9901075-2-3 UK) VRF HP1000-2000 (R)â DXE (HO) Product Information Sheet VRF HP1000-2000(R) DXE (HO) Declaration of Conformity...

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