Power & Control Connections
Single Phase Systems
Three Phase Systems
Wiring-up the Unit
Electrical terminations should be made onto the screw terminal side of the indoor and outdoor unit terminal blocks.
Wiring Requirements
Power supply – Connection of isolation power supply to the outdoor unit.
Interconnecting Wiring – Power and signal cables run between outdoor and indoor unit.
Controls Wiring – Connections between wall mounted controller and indoor unit.
Details of the fuse ratings and cable requirements are given on page 10.
Terminations
Details of cable terminations and interconnections are shown above.
Note:- A wiring diagram is located within both the indoor unit and the outdoor units.
SPECIAL NOTES :
REFER TO KIT INSTRUCTIONS FOR ELECTRICAL CONNECTION OF SITE OPTION KITS !
DO NOT MEGA OR FLASH TEST WITH ELECTRONIC PCB’S IN CIRCUIT
INDOOR AND OUTDOOR UNITS SHOULD HAVE LOCAL ELECTRICAL ISOLATORS.
Eaton-Williams
Low Temperature DX Cassette
Page 11
QLC/ICU
Document 0412124
Issue 2.1 05/06
E
L
N
E
N
F
L
2
C
H
FS
FS
PL
PN
1
PE
E
N
L
C
E
L
1
N
E
N
F
L
2
C
H
FS
FS
PL
PN
1
S
PE
E
N
L
C
S
Power
Feed
Power
Feed
QLC10
ICU40
SINGLE PHASE
QLC15/20
ICU55/80
SINGLE PHASE
E
N
E
N
F
L
2
C
H
FS
FS
PL
PN
1
PE
E
N
C
S
R
H
Power
Feed
QLC15/20
ICU80
THREE PHASE
L
1
L
2
L
3
L
1
L
2
L
3
Only required if
heater is wired up for
three phase
