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Thermoscreens HP City Multi (VRF) Heat Pump Air Curtains can be used with Mitsubishi
Electric City Multi Y/WY-Series (Heat Pump) or City Multi R2/WR2-Series (Heat Recovery)
systems.
City Multi Y/WY-Series Heat Pump Air Curtain System
City Multi Y/WY-Series Heat Pump Air Curtain Schematic :-
Permanent electrical supply
(from local switched spur)
Mitsubishi Electric
VRF Compressor Unit
BMS
Control
Refrigeration pipework
Electrical cables
City Multi Y-Series System:-
Indoor Units and Air Curtains(s) all operate on heating at the same time, or all operate on
cooling at the same time.
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
a Mitsubishi Electric PAR-31MAA or PAR-U02MEDA Remote Controller
a door switch to change fan speeds; higher speed when the door is open, lower speed
when the door is closed (optional)
Mitsubishi Electric Indoor Unit(s)
up to 100% diversity]
* - supplied by Thermoscreens Ltd.
+
- Mitsubishi Electric items supplied by the installer
^
- supplied by the installer
T9901075-2-3 UK
Thermoscreens / Mitsubishi Electric
M-Net Comms Link from
Compressor Unit
Mitsubishi Electric
Indoor Units
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 curtain)
Heat Pump
Air Curtain
Control cables
BMS Control
^
+
[NB. Can be used on a full air curtain basis if required
On/Off
Mode change
Capacity control
3-Speed fan control
Temp. monitoring
Mitsubishi error
Mitsubishi Electric
PAR-31MAA
or PAR-U02MEDA
Remote Controller
Door Switch to change fan speeds
Door open - High; Door shut - Low
(optional)
+
+
Page 3 of 38
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