Power Supply Requirements; Piping Cutting And Flaring - Haier H-MRV Series Service Manual

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1.Power supply requirements:

Voltage: single-phase1PH,220-230V~,50Hz
Dedicated electrical cable should be installed by a qualified technician in accordance with the state
regulation for electrical engineering.
The power source must be grounded.
A circuit breaker must be installed
Electrical cables should be connected by “Y” method. Damaged or wornelectrical cable must be
replaced by authorized after sales agents.
The power plug should be connected as follows: L for live line, N for neutral line and
Connection parameters: H05RN-F 3G(1.0-1.5)mm
Signal parameters:
H05RN-F2X(0.75-1.5)mm (Shieded wire)
Cables for power supply, connection and signals are prepared by the owner.

2.Piping cutting and flaring

Be sure to carry out deburring after cutting with a pipe cutter.
Insert flaring tool to make a flare.
Flare tooling die
A
Correct
Installation inspection and test run:
Please operate unit according to this Manual.
Items to be checked during test run. Please made a ''
Are there any gas leakage?
How is insulation at piping connection carried out?
Are electric wires of indoor and outdoor unit firmly inserted into terminal block?
Is electric wiring of indoor and outdoor securely fixed?
Is drainage securely carried out?
Is earth line(grounding) securely connected?
Is power supply voltage abided by the code?
Is there any noise?
Is control display normal?
Is cooling operation normal?
Is room temp. regulator normal?
Liquid pipe
Gas pipe
Incorrect
Lean Damage of flare
Crack
>a__WcU[S^ <[c >a`V[e[a`Wc
Pipe diameter Size A (mm)
0.8 ~1.5
6.35mm(1/4")
12.7mm(1/2") 1.2 ~2.0
Partial Too outside
'' in '' ''
-87-
for grounding.