45MAHAQ: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Step 4: Electrical Work Preparation
1. All wiring must comply with local and national electrical codes,
regulations and must be installed by a licensed electrician.
2. All electrical connections must be made according to the Electrical
Connection Diagram located on the panels of the indoor and outdoor
units.
3. If there is a serious safety issue with the power supply, stop work
immediately. Explain your reason to the homeowner that the safety
issue must be resolved prior to resuming and completing installation
4. Only connect the unit to an individual branch circuit outlet. Do not
connect another appliance to that outlet.
5. Make sure to properly ground the air conditioner.
6. 7. Every wire must be firmly connected. Loose wiring can cause the
terminal to overheat, resulting in product malfunction and possible fire.
7. Do not let wires touch or rest against refrigerant tubing, the compressor,
or any moving parts within the unit.
8. To avoid getting an electric shock, never touch the electrical
components soon after the power supply has been turned off. After
turning off the power, always wait 10 minutes or more before you
touch the electrical components.
Connect Signal and Power Cables
The signal cable enables communication between the indoor and outdoor
units. You must first choose the right cable size before preparing it for
connection.
NOTE: Choose the cable type according to the local electrical codes
and regulations. Be sure to select the right cable size
according to the Minimum Circuit Ampacity indicated on the
nameplate of the unit.
Connection Diagrams
Fig. 25 —Connection Diagram (115V)
Fig. 26 — Connection Diagram (208/230V)
1. Open and fix the panel position, then open the covers of the two lock
blocks, remove the screw, then hold both sides of the lower panel in the
place marked “PULL”, pull it upwards to release the buckles, then take
the lower panel down.
2. Open the wire box cover on the right side of the unit. This reveals the
terminal block.
3. Unscrew the cable clamp below the terminal block and place it to the
side.
4. Facing the back of the unit, remove the plastic panel on the bottom left-
hand side.
5. Feed the signal wire through this slot, from the back of the unit to the
front.
6. Facing the front of the unit, connect the wire according to the indoor
unit’s wiring diagram, connect the u-lug and firmly screw each wire to
its corresponding terminal.
7. 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.
8. Replace the wire cover on the front of the unit, and the plastic panel on
the back.
Before performing any electrical work, read these
regulations before performing any electrical or wiring
work, turn off the main power to the system.
WA RNING
All wiring must be performed strictly in accordance with
the wiring diagram located on the back of the Indoor Unit’s
front panel.
WA RNING
DO NOT MIX UP LIVE AND NULL WIRES
This is dangerous, and can cause the air conditioning unit
to malfunction.
WA RNING
CONNECTING
CABLE
OUTDOOR
TO INDOOR
9+]3K
<.`6N
/
1
<.`6N<.`6N
CONNECTING
CABLE
OUTDOOR
TO INDOOR
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