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Test Operation
SiUS28-902_a
43
Test Operation
1.1.3 Check Operation
* During check operation, position the front panel in full view so as to avoid incorrect readings.*
Check operation is mandatory for normal unit operation.
(When the check operation is not executed, alarm code "
U3
" will be displayed.)
On completion of test operation, LED on outdoor unit P.C.B. displays the following.
H3P ON: Normal completion
H2P and H3P ON: Abnormal completion
→
Check the indoor unit remote controller for
abnormal display and correct it.
Malfunction code
In case of an alarm code displayed on remote controller:
Check on operation
ü
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þ
ì
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Press and hold the TEST
bu
tton (BS4) on o
u
tdoor
u
nit
P.C.B. for 5 seconds.
The test operation is started a
u
tomatically.
The follo
w
ing j
u
dgements are cond
u
cted
w
ithin 15 min
u
tes(a
b
o
u
t 30
min
u
tes at the maxim
u
m).
• Check for incorrect
w
iring.
• Check that the stop
v
al
v
e is closed.
• The system performs a self check to a
u
tomatically determine pipe
length.
The follo
w
ing indications are cond
u
cted
w
hile in test operation.
• LED lamp on o
u
tdoor
u
nit P.C.B. H2P flickers (test operation)
• Remote controller Indicates “Under Centralized Control” on
u
pper
right.
(For normal completion)
(For abnormal completion)
h
h
H1PH2P H3P H4PH5P H6P H7P
h
k
k
k
h
h
h
h
h
h
h
h
Malfunction
code
Nonconformity during installation
Remedial action
E3
The shutoff valve of an outdoor unit is left
closed.
Open the gas-side shutoff valve and the liquid-side shutoff valve.
Refrigerant overcharge
Recalculate the required amount of refrigerant from the piping
length and correct the refrigerant charge level by recovering any
excessive refrigerant with a refrigerant recovery machine.
E4
The shutoff valve of an outdoor unit is left
closed.
Open the gas-side shutoff valve and the liquid-side shutoff valve.
Insufficient refrigerant
Check if the additional refrigerant charge has been finished
correctly.
Recalculate the required amount of refrigerant from the piping
length and add an adequate amount of refrigerant.
F3
Refrigerant overcharge
Recalculate the required amount of refrigerant from the piping
length and correct the refrigerant charge level by recovering any
excessive refrigerant with a refrigerant recovery machine.
The shutoff valve of an outdoor unit is left
closed.
Open the gas-side shutoff valve and the liquid-side shutoff valve.
Insufficient refrigerant
Check if the additional refrigerant charge has been finished
correctly.
Recalculate the required amount of refrigerant from the piping
length and add an adequate amount of refrigerant.
F6
Refrigerant overcharge
Recalculate the required amount of refrigerant from the piping
length and correct the refrigerant charge level by recovering any
excessive refrigerant with a refrigerant recovery machine.
U2
Insufficient supply voltage
Check to see if the supply voltage is supplied properly.
U3
If a check operation has not been
performed.
Perform a check operation.
Summary of Contents for SkyAir FCQ18PVJU
Page 1: ...Split System Air Conditioners SkyAir Inverter R 410A Heat Pump 60Hz P Series SiUS28 902_a...
Page 44: ...Other Control SiUS28 902_a 37 Function...
Page 81: ...SiUS28 902_a Troubleshooting by Remote Controller Troubleshooting 74...
Page 185: ...SiUS28 902 Precautions for New Refrigerant R 410A Precautions for New Refrigerant R 410A 178...