T9901075-2-3 UK
Page 15 of 38
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. (see also Wiring Diagrams 1 to 4)
A local isolator having a contact separation of at least 3mm on all poles must be fitted in
the 1 phase electrical supply (1L + N + E) to the air curtain and located in an accessible
position adjacent to the unit.
If the defrost cycle auxiliary heater is to be used the air curtain then requires a 3 phase
electrical supply (3L + N + E) to the air curtain instead of a 1 phase electrical supply. A
local isolator having a contact separation of at least 3mm on all poles must be fitted in the
3 phase electrical supply and located in an accessible position adjacent to the unit. The
defrost cycle auxiliary heater will need to be enabled during commissioning (see Section
‘Design Information’ – Page 5 and Section ‘Commissioning’ Page 23).
The appliance must be connected using cables having an appropriate temperature rating
(heat resistant).
Ensure that the supply cables, circuit breakers and other electrical installation equipment
are correctly sized for the air curtain being installed. See Table below.
A 25mm size cable gland or conduit connector should be used for the Electrical Supply
into the air curtain. See Figure 1, Page 11 showing where the electrical supply enters the
unit.
This appliance must be Earthed.
Wire in accordance either with
1)
or
2)
in the Table below:
Air Curtain
1)
Unit as supplied - defrost cycle
auxiliary heater is disabled
(230V/1ph/50Hz electrical supply from
separate local isolator)
2)
the defrost cycle auxiliary heater is
to be enabled during commissioning
(400V/3ph/50Hz electrical supply from
separate local isolator)
Rated Electrical
Power Input (kW)
Rated Current (A)
Rated Electrical
Power Input (kW)
Rated Current per
phase (A)
AC Fans EC Fans AC Fans EC Fans AC Fans EC Fans AC Fans EC Fans
VRF HP1000 DXE
0.2
0.3
0.8 1.2 4.7 4.8 7.3 7.7
VRF
HP1500
DXE 0.3 0.4 1.2 1.6 7.8 7.9 12.1
12.5
VRF
HP2000
DXE 0.35 0.45 1.4 1.9 9.35 9.45 14.4 14.9
1) Unit as supplied – defrost cycle auxiliary heater
is disabled, see Wiring Diagram 1 or 3
(230V/1ph/50Hz electrical supply from separate
local isolator)
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 – this is the
communication link between the City Multi system
and the air curtain.
