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07-01-2010, 10:04 PM #1
'emergency' operation on Daikin VRV
Good evening gents,
Been working on an old R22 'K' series VRV.
model: RSEY10KJW1.
Having problems with the inverter side of unit; inverter comp seized.
So, I've set the 'emergency' switch to on at the main pcb. Set all 7 fan coils to heat and ramped the temperatures up to 32.
Unfortunately the VRV does not want to run. No fault codes showing on R/C's.
I powered down the VRV prior to using the emergency switch.
As far as I know, this should be the only adjustment required to operate the VRV on standard comp.
Any other ideas?
regards,
Jase
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07-01-2010, 11:56 PM #2
Re: 'emergency' operation on Daikin VRV
Hi Jase,
That unit will only operate in emergency when all indoors are thermo on, are you 100% sure that all connected indoor units were:
1/ Switched on
2/ Set to heating mode
3/ Set point increased to ensure thermo on
If the unit still fails to operate, check calibration of the outdoor ambient thermistor (Th1).
-5 C = 85kOhms
0 C = 65kOhms
5 C = 51kOhms
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