Hitachi RAC-25WSA RAC25WSA 用户手册
产品代码
RAC25WSA
CONTENTS
4
13.3.1
Procedures of Wiring
___________________ 13-7
13.3.2
Electrical Wiring for Indoor unit
___________ 13-8
13.3.3
Electrical Wiring for Outdoor unit
_________ 13-10
14
TROUBLESHOOTING
________________________ 14-1
14.1
PRECAUTIONS FOR TROUBLE SHOOTING
______ 14-3
14.1.1
MONOZONE RAC-25NPA / 35NPA /
50NPA
_________________________ 14-3
14.1.2
MULTIZONE RAM-36NP2A
______________ 14-3
14.1.3
MULTIZONE/MONO SPLIT RAM-53NP2A /
53NP3A / 68NP3A / 70NP4A , MONO SPLIT
RAF-50PXA/RAC-50FXA
RAF-50PXA/RAC-50FXA
_________________ 14-4
14.1.4
MULTIZONE RAM-90NP5A
______________ 14-4
14.1.5
MULTIZONE RAM-130NP6A
_____________ 14-5
14.1.6
MONO SPLIT RAK-18/25/35PSA / RAC-
18/25/35WSA , RAK-18/25/35PSAN / RAC-
18/25/35WSAN , RAK-18/25/35PSPA / RAC-
18/25/35WSPA
18/25/35WSAN , RAK-18/25/35PSPA / RAC-
18/25/35WSPA
_________________________ 14-5
14.1.7
MONO SPLIT RAK-18/25/35PPA / RAC-
18/25/35WPA , RAK-18/25/35/50PEA / RAC-
18/25/35/50WEA , RAF-25/35RPA / RAC-
25/35FPA
18/25/35/50WEA , RAF-25/35RPA / RAC-
25/35FPA
_________________________ 14-6
14.1.8
MONO SPLIT RAK-50/60/70PPA / RAC-
50/60/70WPA
_________________________ 14-6
14.1.9
MONO SPLIT RAF-50RPA / RAC-50FPA
___ 14-7
14.1.10
MONO SPLIT RAF-25/35PXA / RAC-
25/35FXA
_________________________ 14-7
14.1.11
MONO SPLIT RAD-50/60/70PPA / RAC-
50/60/70DPA
_________________________ 14-8
14.2
DISCHARGE PROCEDURE AND POWER SHUT
OFF METHOD FOR POWER CIRCUIT
___________ 14-9
14.2.1
MONOZONE RAC-25NPA / 35NPA /
50NPA & MULTIZONE RAM-36NP2A /
53NP2A / 53NP3A / 68NP3A / 70NP4A /
130NP6A & MONO SPLIT RAF-50PXA /
RAC-50FXA, RAD-50/60/70PPA / RAC-
50/60/70DPA
53NP2A / 53NP3A / 68NP3A / 70NP4A /
130NP6A & MONO SPLIT RAF-50PXA /
RAC-50FXA, RAD-50/60/70PPA / RAC-
50/60/70DPA
_________________________ 14-9
14.2.2
MULTIZONE RAM-90NP5A
______________ 14-9
14.2.3
MONO SPLIT RAK-18/25/35PSA / RAC-
18/25/35WSA, RAK-18/25/35PSAN / RAC-
18/25/35WSAN , RAK-18/25/35PSPA / RAC-
18/25/35WSPA
18/25/35WSAN , RAK-18/25/35PSPA / RAC-
18/25/35WSPA
________________________ 14-10
14.2.4
MONO SPLIT RAK-18/25/35PPA / RAC-
18/25/35WPA, RAK-18/25/35/50PEA / RAC-
18/25/35/50WEA , RAF-25/35PXA / RAC-
25/35FXA RAF-50RPA / RAC-50FPA
18/25/35/50WEA , RAF-25/35PXA / RAC-
25/35FXA RAF-50RPA / RAC-50FPA
______ 14-10
14.2.5
MONO SPLIT RAK-50/60/70PPA / RAC-
50/60/70WPA
________________________ 14-11
14.2.6
MONO SPLIT RAF-25/35RPA / RAC-
25/35FPA
________________________ 14-11
14.3
PRELIMINARY CHECK ON INDOOR/OUTDOOR
UNIT ELECTRICAL PARTS AND
REFRIGERATING
REFRIGERATING
___________________________ 14-12
14.3.1
Support Function of Failure Diagnosis
_____ 14-13
14.4
CHECKING THE INDOOR UNIT ELECTRICAL
PARTS
____________________________________ 14-14
14.4.1
No power is detected (no operation)
______ 14-14
14.4.2
Indoor fan does not operate (others are
normal) – RAK-25/35/50PXA, RAK-
18/25/35/50/70PPA, RAK-18/25/35/50PEA,
RAF-25/35/50RPA, RAF-25/35/50PXA, RAD-
50/60/70PPA
18/25/35/50/70PPA, RAK-18/25/35/50PEA,
RAF-25/35/50RPA, RAF-25/35/50PXA, RAD-
50/60/70PPA
________________________ 14-16
14.4.3
Air deflector does not move (others are
normal)
________________________ 14-16
14.4.4
Check the control P.W.B. (power circuit) –
RAK-25/35PXA, RAK-18/25/35PPA, RAK-
18/25/35/50PEA, RAF-25/35/50RPA, RAF-
25/35PXA
18/25/35/50PEA, RAF-25/35/50RPA, RAF-
25/35PXA
________________________ 14-16
14.4.5
Checking the remote controller
__________ 14-17
14.4.6
Outdoor unit does not operate (but receives
remote infrared signal)
__________________ 14-17
14.4.7
All systems stop from several seconds to
several minutes after operation is started (all
indicators are also off)
indicators are also off)
___________________ 14-18
14.5
CHECKING OUTDOOR UNIT ELECTRICAL
PARTS
____________________________________ 14-19
14.5.1
No operation or abnormal operation (RAC-
18/25/35WPA, RAC-18/25/35/50WEA, RAC-
25/35FPA, RAC-25/35FXA
25/35FPA, RAC-25/35FXA
_______________ 14-19
14.5.2
No operation or abnormal operation (RAC-
18/25/35WSA, RAC-25/35/50WXA, RAC-
50/60/70WPA, RAC-50FPA, RAC-50FXA,
RAC-50/60/70DPA
50/60/70WPA, RAC-50FPA, RAC-50FXA,
RAC-50/60/70DPA
_____________________ 14-21
14.6
CHECKING BETWEEN GAS LEAKAGE AND
COMPRESSOR FAULTY
______________________ 14-24
14.6.1
Troubleshooting procedure (No operation,
No heating or No cooling)
________________ 14-24
14.7
TROUBLESHOOTING WHEN INDOOR TIMER
LAMP BLINKS
______________________________ 14-25
14.7.1
MONOZONE / MULTIZONE indoor
_______ 14-25
14.7.2
MONO SPLIT INDOOR (RAK-25/35PXA,
RAK-18/25/35/50/60/70PPA, RAK-
18/25/35/50PEA, RAF-25/35/50RPA)
18/25/35/50PEA, RAF-25/35/50RPA)
_______ 14-26
14.7.3
MONO SPLIT INDOOR (RAK-18/25/35PSA,
RAK-18/25/35PSAn, RAK-18/25/35PSPA)
___ 14-27
14.7.4
MONO SPLIT INDOOR (RAK-50PXA)
_____ 14-28
14.7.5
MONO SPLIT INDOOR (RAF-25/35/50PXA)
________________________ 14-29
14.7.6
MONO SPLIT INDOOR (RAD-50/60/70PPA)
________________________ 14-30
14.8
TROUBLESHOOTING WHEN OUTDOOR LED
LAMP BLINKS
______________________________ 14-31
14.8.1
MONOZONE RAC-25NPA / 35NPA /
50NPA
________________________ 14-31
14.8.2
MULTIZONE
________________________ 14-32
14.8.3
COMMUNICATION ERROR DIAGNOSIS
MULTIZONE RAM- 53NP3A / 68NP3A /
70NP4A / 130NP6A
70NP4A / 130NP6A
____________________ 14-33
14.8.4
COMMUNICATION ERROR DIAGNOSIS
MULTIZONE RAM-90NP5A
______________ 14-34
14.8.5
MONO SPLIT(RAC-18/25/35WPA, RAC-
25/35WXA, RAC-25/35FXA)
______________ 14-34
14.8.6
MONO SPLIT (RAC-50WXA, RAC-50FXA
_ 14-35
14.8.7
MONO SPLIT (RAC-50/60/70WPA, RAC-
50/60/70DPA)
________________________ 14-36
14.9
CHECKING POWER MODULE
_________________ 14-38
14.9.1
RAC-25NPA, 35NPA, 50NPA & RAM-
36NP2A, 53NP2A, 53NP3A, 68NP3A,
70NP4A, 130NP6A
70NP4A, 130NP6A
_____________________ 14-38
14.9.2
RAM-90NP5A
________________________ 14-38
14.9.3
RAC-18/25WPA, RAC-25/35/50WXA, RAC-
25/35/50FXA
________________________ 14-39
14.9.4
RAC-35WPA
________________________ 14-39
14.9.5
RAC-50/60/70WPA, & RAC-50/60/70DPA
__ 14-40
14.10
THERMISTOR
______________________________ 14-41
14.10.1
Name and role of each thermistor
______ 14-41
14.10.2
Reference value for thermistor’s
resistance and temperature
______________ 14-41
14.10.3
Monozone Outdoor
_________________ 14-42
15
MISCELLANEOUS NOTE
______________________ 15-1
15.1.
INSTALLATION AT COLD REGIONS OR
SNOWFALL REGIONS.
________________________ 15-2
15.2.
INSTALLATION POINTS ON OUTDOOR UNITS IN
COLD OR SNOWFALL REGIONS.
_______________ 15-2
15.2.1.
Installation place of Cold and Snowfall
Regions
_________________________ 15-2
15.2.2.
Considerations to the Seasonal Winds and
Snowfall
_________________________ 15-2
15.2.3.
Considerations to Snowfall / Snow Buildup
__ 15-3
15.2.4.
Considerations to Sliding Snow from Roof
or SNOWFALL
_________________________ 15-4
15.2.5.
As to Proper Drainage of Defrosting
WATER
_________________________ 15-5