HTW IX21D5 Serie Manuel D'installation page 73

SPLIT 1X1 IX21D5
If you will install the unit on a wall-mounted bracket, do the following:
CAUTION
Before installing a wall-mounted unit, make sure that the wall is made of solid brick, concrete, or
of similarly strong material. The wall must be able to support at least four times the weight of the
unit.
1. Mark the position of bracket holes based on dimensions in the Unit Mounting Dimensions chart.
2. Pre-drill the holes for the expansion bolts.
3. Clean dust and debris away from holes.
4. Place a washer and nut on the end of each expansion bolt.
5. Thread expansion bolts through holes in mounting brackets, put mounting brackets in position, and
hammer expansion bolts into the wall.
6. Check that the mounting brackets are level.
7. Carefully lift unit and place its mounting feet on brackets.
8. Bolt the unit firmly to the brackets.
TO REDUCE VIBRATIONS OF WALL-MOUNTED UNIT
If allowed, you can install the wall-mounted unit with rubber gaskets to reduce vibrations and noise.
5.4 CONNECT SIGNAL AND POWER CABLES
The outside unit's terminal block is protected by an electrical wiring cover on the side of the unit. A
comprehensive wiring diagram is printed on the inside of the wiring cover.
BEFORE PERFORMING ELECTRICAL WORK, READ THESE REGULATIONS
1. All wiring must comply with local and national electrical codes, and must be installed by a licensed
electrician.
2. All electrical connections must be made according to the Electrical Connection Diagram located on
the side panels of the indoor and outdoor units.
3. If there is a serious safety issue with the power supply, stop work immediately. Explain your
reasoning to the client, and refuse to install the unit until the safety issue is properly resolved.
4. Power voltage should be within 90-110% of rated voltage. Insufficient power supply can cause
electrical shock or fire.
5. If connecting power to fixed wiring, install a surge protector and main power switch with a capacity
of 1.5 times the maximum current of the unit.
6. If connecting power to fixed wiring, a switch or circuit breaker that disconnects all poles and has a
contact separation of at least 1/8in (3mm) must be incorporated in the fixed wiring. The qualified
technician must use an approved circuit breaker or switch.
7. Only connect the unit to an individual branch circuit outlet. Do not connect another appliance to
that outlet.
8. Make sure to properly ground the air conditioner.
9. Every wire must be firmly connected. Loose wiring can cause the terminal to overheat, resulting in
product malfunction and possible fire.
10. Do not let wires touch or rest against refrigerant tubing, the compressor, or any moving parts within
the unit.
11. If the unit has an auxiliary electric heater, it must be installed at least 1 meter (40in) away from any
combustible materials.
INSTALLATION MANUAL
5. OUTDOOR UNIT INSTALLATION
71
