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INSTALLATION INSTRUCTIONS
Insulation
• HP gas pipe, suction gas pipe, and liquid pipe should be
heat insulated separately.
• The insulation material for the hot gas and suction
lines should withstand a temperature of 248°F (120°C).
The liquid line insulation should be able to withstand
temperatures over 158°F (70°C).
• The material thickness should be over 1/2", when
ambient temp. is 86°F (30°C), and the relative humidity
is over 80%, the material thickness should be over 3/4".
• The material should fit over the pipe closely without
gap, then be wrapped with adhesive tape. The
communication wire should not run together with the
insulation material and should be spaced at least 8
inches.
Liquid pipe
Secure the refrigerant pipe.
• The refrigerant lines will expand and contract during
operation so it is important that they be supported
properly.
• Support lines every 7 to 10 ft.
• Check leakage on the pipe connections when
installation is finished.
• When checking leakage of refrigerant or reinstalling the
system, make sure to turn the compressor off and then
disconnect the pipe.
• Do not operate the compressor in condition of
unconnected pipe, refrigerant leakage and incorrectly
connected pipe. If not it may cause air to flow into
compressor and lead an explosion or malfunction.
• If there's any possibility of small animals entering the
pipe from outlet, then block it.
Electric Wiring and Applications (Cont.)
Power
Model
Source
MVHP072ME2CA
MVHP096ME2CA
208/230V~
MVHP120ME2CA
60Hz 3PH
MVHP144ME2CA
MVHP072ME4CA
MVHP096ME4CA
460V~
MVHP120ME4CA
60Hz 3PH
MVHP144ME4CA
24
Communication wire
over 8 inches
Adhesive tape
Gas pipe
Pipe insulation
Each model
Maximum load
Circuit
circuit breaker
current (A)
breaker (A)
30
40
38
50
41
60
56
80
16
20
20
25
22
30
30
40
Electric Wiring and Applications
1. Please follow all national and local electric codes. All
wiing materials should comply with local and national
codes. All work should be done by professional
electricians.
2. Power supply must be provided at the rating plate level.
Fluctuations in the power supply must be less than 2%
phase to phase. Outdoor and indoor units must have
their own dedicated power supply.
3. Electrical connections from disconnects to equipment
should be properly secured.
4. Power conductors should be sized in accordance with
national and local codes. Equipment must be properly
grounded to earth through the circuit breaker panel.
5. Equipment electrical circuits must be protected by the
properly sized breaker per codes.
6. Do not add filter capacitors to the power supply
servicing this equipment.
7. Follow these installation instructions when wiring the
equipment to avoid injury or accidents.
8. The unit must be reliably grounded to meet the national
requirements.
9. All electrical installations must be carried out by
professionals in accordanve with local laws, regulations,
and corresponding instructions.
Power Control Cabinet
Circuit breaker
Outdoor 1
Leakage current
Minimum sectional
(mA) response
area of power line AWG
(A)
time (S)
40
50
60
80
30mA, below
20
0.1s
25
30
40
Circuit breaker
Circuit breaker
Circuit breaker
Outdoor 2
Outdoor 3
Minimum sectional
area of earthing line
(mm
)
AWG (mm
2
7(10)
7(10)
7(10)
7(10)
7(10)
7(10)
3(25)
5(16)
9(6)
9(6)
9(6)
9(6)
9(6)
9(6)
7(10)
7(10)
)
2
31-5000572 Rev. 1
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