Indoor Unit Wiring - Mars Comfort-Aire Century VCD24 SA Series Installation Manual

INDOOR UNIT WIRING

CAUTION
• While connecting the wires, please strictly follow the wiring diagram.
• The refrigerant circuit can become very hot. Keep the interconnection cable away from the
copper tube.
Step 1: Prepare the cable for connection.
1. Using wire strippers, strip the insulating jacket
from both ends of the signal cable to reveal
about 15cm (5.9") of the wire.
2. Strip the insulation from the ends of the wires.
Step 2: Open the front panel of the
indoor unit.
Using a screwdriver,remove the cover of the
electric control box on your indoor unit.
Step 3: Connect the wires to the
terminals.
1.
Thread the power cable and the signal cable
through the wire outlet
2.
Match the wire colors/labels with the labels
on the terminal block. Firmly screw the wires
of each wire to its corresponding terminal.
Refer to the Serial Number and Wiring
Diagram located on the cover of the electric
control box.
Wiring diagram
Type A
Class2 wire
Power
wire
TO POWER SOURCE
OR OUTDOOR
Installation and Operation Manual - VCDxxSA
Type B
Class2 wire
WARNING
ISOLATE THE POWER SUPPLY LEADS
AND COMMUNICATION LEADS BY THE
STRAIN RELIF AND KEEP POWER SUPPLY
LEADS AWAY FROM COMMUNICATION
LEADS.
3. Clamp down the cable with the cable clamp.
The cable must not be loose or pull on the
u-lugs.
4. Reattach the electric box cover.
5. Clamp down the cable with the cable clamp.
The cable must not be loose or pull on the
u-lugs.
6. Reattach the electric box cover
CAUTION
• While connecting the wires, please strictly
follow the wiring diagram.
• The refrigerant circuit can become very
hot. Keep the interconnection cable away
from the copper tube.
33
S
Power
wire
TO OUTDOOR