01-12
Check Item Check contents Judgement Present Status
Ref. circuit name _______________________, Ref. address ________(00
99)
Power
Source
Outdoor Unit
Actual Power Supply (V)
Between L1-L2 / L1-L3 / L2-L3
< 3N, 3Wire + ground, 60Hz >
AC (208 - 230V)
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
&
RB Unit
Actual Power Supply (V)
< 1, 2Wire + ground, 60Hz >
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 _______ (RB 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 displa y “AM 1 2:00” will a ppea r
Yes / No
Check Wired RC (2-wire) display screen
Judgment : La ngua ge selection screen will a ppea r
Yes / No
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
IU address _______ (RB address ________ )
Yes No
AC (208 - 230V) 10%
Overview of system operation check procedure
Step-1: Connect Service Tool PC to the VRF VR-II system.
Do scaning of refrigerant system which should be commissioned.
Step-2: Compare the number of installed units (OU, RB Group 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 RB unit SV status and 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, in order of RB group number, from cool to heat.
- Check the RB unit SV status and 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 1/2
1-3 Check Items After Power ON
1-3-1 Power source check sheet
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