Connect Signal Cable - CANVAC T-Series Installation Manual

INDOOR UNIT INSTALLATION
STEP 6: CONNECT SIGNAL CABLE
The signal cable enables communication between the
indoor and outdoor units. You must first choose the right
cable size before preparing it for connection.
Cable Types
lndoor Power Cable (if applicable): H05VV-F or H05V2V2-F
Outdoor Power Cable: H07RN-F
Signal Cable: H07RN-F
Minimum Cross-Sectional Area of Power and Signal Cables
Rated Current of
Appliance (A) Sectional Area (mm
>3 and ≤6
>6 and ≤10
>10 and ≤16
>16 and ≤25
> 25 and ≤32
> 32 and ≤40
CHOOSE THE RIGHT CABLE SIZE
The size of the required power supply cable, signal cable,
fuse, and switch is determined by the maximum current of
the unit. The maximum current is indicated on the name-
plate located on the side panel of the unit. Refer to this
nameplate to choose the right cable, fuse, or switch.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioner's circuit board (PCB) is designed with
a fuse to provide overcurrent protection. The specifications
of the fuse are printed on the circuit board, such as:
Indoor unit:
T5A/250VAC
Outdoor unit:
T20A/250VAC
T30A/250VAC
NOTE: The fuse is made of ceramic.
1. Prepare the cable for connection:
• Using wire strippers, strip the rubber jacket
from both ends of signal cable to reveal about
40mm (1.57in) of the wires inside.
• Strip the insulation from the ends of the wires.
• Using wire nippers, crimp u-type lugs on the
ends of the wires.
PAY ATTENTION TO LIVE WIRE
While crimping wires, make sure you clearly distinguish
the Live ("L") Wire from other wires.
Nominal cross-
)
2
0.75
1
1.5
2.5
4
6
fig 3.9
2. Open front panel of the indoor unit.
3. Using a screwdriver, open the wire box cover
on the right side of the unit, then open the terminal
block cover. This will reveal the terminal block.
4. Unscrew the cable clamp below the terminal
block and place it to the side.
5. Facing the back of the unit, remove the plastic
panel on the bottom left-hand side.
6. Feed the signal wire through this slot, from
the back of the unit to the front.
7. Facing the front of the unit, match the wire
colors with the labels on the terminal block,
connect the u-lug and firmly screw each
wire to its corresponding terminal.
WARNING!
DO NOT MIX UP LIVE AND NULL WIRES
This is dangerous and can cause the air conditioning
unit to malfunction.
8. After checking to make sure every connection is
secure, use the cable clamp to fasten the signal
cable to the unit. Screw the cable clamp down
tightly.
9. Replace the wire cover on the front of the unit, and
the plastic panel on the back.
WARNING
ALL WIRING MUST BE PERFORMED STRICTLY IN ACCORD-
ANCE WITH THE WIRING DIAGRAM LOCATED ON THE
BACK OF THE INDOOR UNIT 'S FRONT PANEL.
NOTE ABOUT WIRING
THE WIRING CONNECTION PROCESS MAY DIFFER
SLIGHTLY BETWEEN UNITS.
49
EN
Terminal block
Wire cover
Screw
Cable clamp
The Wiring Diagram is
located on the inside of the
indoor unit's wire cover.