Common Wiring - Pioneer DR024GHFD18HT2 Service Manual

8. WIRING DIAGRAM

8.3 Common Wiring

Wiring Diagram
W1
B
C
R
Y
G
Thermostat
NOTE:
(1) Do
not
connect
dashed
line
when
electric
heater
is
not
used.

(2) Wiring
must
be
performed
according
to
wiring
diagram
that
pasted
on
indoor
unit.
(3) The SI wire between the indoor and outdoor units is not indispensable, especially when the outdoor unit is connected to
an indoor unit of a different brand. It is more energy-saving when the outdoor unit is connected to an indoor unit of the
same brand by SI wire. However, it still can run without it.
(4) Since the thermostat is locally provided, the terminal block in the diagram may differ from the actual one. The letter Y is
the same as Y1.
Recommended Wire Size
Model
(Btu/h) Supply
208/230V
24K~60K
~/60Hz
Max. Running Current (A): REFER TO NAMEPLATE
NOTE:
1. Follow local codes and regulations when selecting field wires, and all the above are the minimum wire size.
2. When transmitting cable is longer than 262ft. (80m), a larger wire size should be selected.
3. Install main switch and ELB for each system separately. Select the high response type ELB that is acted within
second.
4. If auxiliary heater is required and already installed on indoor unit, power source cable should be installed separately
and the size should be selected in accordance with UL.
G R C W1 SI
Indoor Unit
Power Supply
ELB
Power
Rated
Current (A)
15
C B Y W SI
Outdoor Unit
L1 L2 PE
Power
Nominal
Source
Sensitive
Cable Size
Current
(mA)
30 3×16AWG
14
Power
(L1)(L2) ( )
Terminal
Panel
Power Supply
Transmitting Thermostat
Cable Size Signal Size
5×18AWG/
5×16AWG
6×18AWG
Fuse or Circuit
Breaker (A)
15


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