Wiring - ActronAir Cascade URC-071AS Installation Manual

8. Wiring

Safety Precautions
WARNING
• Be sure to disconnect the power supply before working
on the unit.
• All electrical wiring must be done according to local and
national regulations.
• Electrical wiring must be done by qualified technician.
Improper connections may cause electrical malfunction,
injury and fire.
• Connect the power cable to the terminals and fasten it
with a clamp. Unsecured connection may cause fire.
• Make sure that all wiring is done correctly and the
control board cover is properly installed. Failure to do
so can cause
overheating at the connection points, fire, and
electrical shock.
• Ensure that main supply connection is made with
contact of gap at least 3mm (0.118")
CAUTION
• Make sure you earth the unit. Improper earthing may
cause electrical shock.
• DO NOT connect the unit with the power source until
all wiring and piping is completed.
• Make sure that you do not cross your electrical wiring
with your signal wiring, as this can cause distortion and
interference or unit malfunction.
Follow these instructions to prevent distortion when the
compressor starts:
• The unit must be connected to its individual sub-circuit.
Ensure sub-circuit mains are of adequate size to ensure
minimal voltage drop at supply terminals.
• No other equipment should be connected to the same
power circuit.
• The unit's power information can be found on the rating
sticker on the product.
TAKE NOTE OF FUSE SPECIFICATIONS
The air conditioners 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: T5A/250VAC, T10A/250VAC, etc.
Super Slim Four-Way Cassette
Outdoor Unit Wiring
WARNING
Before performing any electrical or wiring work, turn off
the main power to the system.
1. Prepare the cable for connection
a. You must first choose the right cable size before
preparing it for connection.
b. Using wire strippers, strip the rubber jacket from
both ends of signal cable to reveal about 15cm of the
wires inside.
c. Strip the insulation from the ends of the wires.
d. Using a wire crimper, crimp u-lugs on the ends of
the wires.
NOTE
While connecting the wires, please strictly follow the
wiring diagram (found inside the electrical box cover).
2. Remove the electric cover of the outdoor unit. If there
is no cover on the outdoor unit,disassemble the bolts
from the maintenance board and remove the
protection board. (See fig 8.1)
3. Connect the fork-lugs to the terminals Match the wire
colours / labels with the labels on the terminal block,
and firmly screw the u-lug of each wire to its
corresponding terminal.
4. Clamp down the cable with designated cable clamp.
6. Reinstall the cover of the electric control box.
Page 17
Cover
Screws Fig. 8.1