COMFORT-AIRE A-VFH30QB-1 Installation & Operation Manual page 19

Installation & Operation Manual - VFH-B 30/36/42 Series
Inverterflex Series
A-VFH42PB-1
4.4.2 Grounding Requirements
(1) This air conditioner is classified into the Class I applia nces. Its grounding must be reliable.
(2) The yellow-green line of the air conditioner is the ground line and can not be used for any other purpose, cut off
or attached by tapping screw; otherwise it will cause hazard of electric shock.
(3) (3) A ground terminal should be provided and the ground wire can not be connected to any of the following places.
1. Running water pipe 2. Sewage pipe 3. Gas pipe 4. Other places where the professional personnel think
unreliable.
1) Mi-wiring will result in malfunction. After the electrical wiring work, ensure the wire
between the connection and the fixed point has a small amount of slack.
2) Please follow all piping and wiring instructions.
3) The electric installation should be carried out by the technician as instructed by the local laws, regulations and
also this manual.
4) The installation location should be dry, and not exposed to direct sunlight or strong winds.
5) Install a breaker in the circuit that can shut off the main power supply of the system,
coupled with current leakage protection.
4.4.4 Wiring of the Power Cord
(1). Open the side plate.
(2). Connect the power cord to the terminals "L1" , "L2" and also the ground screw, and then connect the
wiring terminals "N(1),2,3 of the indoor unit to those of the outdoor unit correspondingly. Please use the green bonding
screw to connect the grounding wire. The location is shown in figure 13.
(3). Fix the power cord with wire clips.
(4). Feed the power cord through the rubber ring.
If the supply cord is damaged, it must be replaced by the manufacturer
or its service agent or a similarly qualified person in order to avoid a hazard.
Inverterflex Series
Fig 12
14
Tighten the green
bonding screw here
Figure 13