Johnson Controls YVAHP072B31S, Руководство по обслуживанию

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Service Manual
2-7
OPERATION
3. Before Operation
Power is turned on. Apply power to the outdoor unit(s) at least 12 hours prior to operation of the
system for preheating of the compressor oil. Make sure that the outdoor unit is not covered with
snow or ice. If it is, remove it by using hot water that is approximately 122
o
F (50
o
C).
If the water temperature is higher than 122
o
F (50
o
C), it will cause damage to plastic parts.
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If the main switch is not turned OFF, electricity is consumed because the oil heater is always energized
during compressor stopping.
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that the system be checked by your service contractor.
NOTICE
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Ɣ Do not leave a window or a door open.
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Ɣ Attach a curtain or a blind to a window.
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Ɣ Use a circulator if warm air stays around the ceiling.
Comfort will be increased. Contact your distributor for details for using a circulator.
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o
downward.
Ɣ Turn OFF the main power source if the indoor unit is not to be used for a long period.
The standby electricity charges will have to be paid even if the indoor unit is unused.
3.1 Working Range
This heat pump air conditioner has been designed for the following temperatures. Operate the heat pump air
conditioner within this range.
Temperature
Maximum Minimum
Cooling
Operation
Indoor 89
o
F DB/73
o
F WB (32
o
C DB/23
o
C WB) 69
o
F DB/59
o
F WB (21
o
C DB/15
o
C WB)
Outdoor 118
o
F DB (48
o
C DB) * 14
o
F DB (-10
o
C DB) *
Heating
Operation
Indoor 80
o
F DB (27
o
C DB) 59
o
F DB ( 15
o
C DB)
Outdoor 59
o
F WB (15
o
C WB) * -4
o
F WB (-20
o
C WB) *
DB: Dry Bulb, WB: Wet Bulb
* The temperature may change depending on the outdoor unit.