Electrical Connection; Safety Precautions; External Connection - Gree LSQWRF35VM/NhA-M Service Manual

(3) Fastening
The insulating tube is just required to be bundled and fastened at the supporting bracket.

3.5 Electrical connection

3.5.1 Safety precautions

• The electricians should be licensed.
• The air conditioning is Class I appliances and should be grounded reliably.
• The grounding resistance should comply with the national standards covered in GB 50169
• The yellow-green line is for grounding. Do not use it for other purpose or cut it off or fixed with the
self-tapping screw, other wise it would lead to electric shocks.
• The power supply should be reliably grounded and do not connect the ground line to a) running water
lines; b) gas lines; c) blow-off lines; d) other unreliable places.
• Do not make the power lines and communication lines entwined and arrange them separately with a
distance no less than 20cm, otherwise it would lead to abnormal communication.
• Do not wire improperly power lines and communication lines. When the power line is wired to the
communication port, it would make the main board burnt out.

3.5.2 External connection

Follow the wiring diagrams below to complete control output connections.
■ LSQWRF35VM/NhA-M
Note: the output control lines of the AC contactors for the running indicator, water pump 1, water pump
2, auxiliary electric heater 1, auxiliary electric heater 2 can be wired to the corresponding wiring board
of all units, while those for the error indicator and external passive contact switch should be wired to the
corresponding wiring board of all units.
Unit Installation
NOTE
37