Fujitsu AB* A12GATH, Service Manual

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01-09
Check Item Check contents Judgement Present Status
Ref. circuit name _______________________, Ref. address ________(00 99)
Power
Source
Outdoor Unit
Actual Power Supply (V)
Between R-S / S-T / T-R
< 3, 4Wire + ground, 50Hz >
AC (380 - 415V) 10%
Incoming voltage per breaker
Master (V): R-S:_____ / S-T:____ / T-R:____
Slave -1 (V): R-S:_____ / S-T:____ / T-R:____
Slave -2 (V): R-S:_____ / S-T:____ / T-R:____
Indoor Unit
Actual Power Supply (V)
< 1, 2Wire + ground, 50Hz >
Incoming voltage per breaker
Breaker-1 (V): _______
Breaker-2 (V): _______
Breaker-3 (V): _______
_______
Check Contents Judgement Present Status
Ref. circuit name ________________________, Ref. address ________(00 99)
For each
refrigerant
system
Outdoor unit Check PCB- Lighting status
Master
LED101 (green light)
Judgment : must be ON
Yes / No
Note : LED102 (Red) must not be flash & must not be ON
7-SEG LED
Judgment : ‘Sn’ displayed
Yes / No
LED101: Yes No
7-SEG : Yes No
Slave-1
LED101: Yes No
7-SEG : Yes No
Slave-2
LED101: Yes No
7-SEG : Yes No
Indoor unit Check LED & RC display status
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
IU address _______
Indoor Unit
For Wall mounted, Universal, Celling & Small Cassette
Check IU operation LED & timer LED condition
Judgment : must be flashing alternately Yes / No
For Large Cassette and Duct type IU
Check Wired RC (3-wire) display screen
Judgment : Clock display “AM 12:00” will appear
Yes / No
Check Wired RC (2-wire) display screen
Judgment : Language selection screen will appear
Yes / No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
Yes No
AC (220 - 240V) 10%
Overview of system operation check procedure
Step-1 : Connect Service Tool PC to the VRF V-III system.
Do scaning of refrigerant system which should be commissioned.
Step-2 : Compare the number of installed units (OU and IU) with the System List data obtained from the Service Tool.
Step-3 : Operate all Indoor Units under Test Mode Cooling (Select Test mode either cool or heat based on ambient temperature.).
Step-3-1: During operation, check the IU thermistor value
Step-3-2: After 1-hour operation, check the Refrigerant System
Step-4 : After 1-hour Test run operation (excluding special operation),
Step-4-1: Switching the operation mode of IU from cool to heat.
- Check the IU thermistor value
Step-4-2: When all IUs run under heating, continue operation minimum 15min. And check the Refrigerant system
1-3-2 Error indication check sheet
1-3 Check Items After Power ON
1-3-1 Power source check sheet