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4.OPERATING RANGE
(
1
)
POWER SUPPLY
(
2
)
OPERATION
5.ADDITIONAL REFRIGERANT CHARGE (R-22(oz))
Indoor unit
115V 60Hz 1[
208/230V 60Hz 1[
(3wires)
Min. 198V 208V 230V Max. 253V
Min. 103v—Max. 127V
Outdoor unit
MS09NW
MUM18NW
Models Rating Guaranteed Voltage
Function
Cooling
Indoor Outdoor
78% –
DB (˚F)
80
95
67
Standard temperature
Maximum temperature
Minimum temperature
Maximum humidity
WB (˚F)
67
71
57
DB (˚F)
95
115
67
WB (˚F)
–
–
–
Intake air
temperature
Condition
Model
Outdoor unit
precharged
(up to 25ft)
Refrigerant piping length (one way)
MS09NW✕2
MUM18NW
1 Ibs 14 oz ✕2
25ft 30ft 33ft 40ft 45ft 49ft
0 1 1 2 2 3
6.MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE
MSM18NW
Indoor unit A
MS09NW
Max. Length
49ft
❋Max. Height
difference 25ft
Indoor unit B
MS09NW
Outdoor unit
MUM18NW
Max. Length
49ft
7.PIPING PREPARATION
1 Table below shows the specifications of pipes commercially available.
2 Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.
3 Refrigerant bending radius must be 10cm or more.
Outside diameter Insulation
UNIT No. Pipe
inch thickness(in)
Insulation material
and
UNIT
For liquid 1/4 1/4 Heat resisting foam plastic
For gas 3/8 1/4 0.045 specific gravity
BA
OB202-1.qxp 26/9/97 11:07 AM Page 8