Daikin VRV IV+ Service Manual page 291

To check the HAP LED of the main PCB
To check if the correct spare part is installed
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
a Connector X37A
Is the measurement correct?
Yes
No
Prerequisite: First perform a power check of the main PCB, see
4
procedures" [ 290].
1 Locate the HAP LED on the main PCB.
a HAP LED
Does the HAP LED blink in regular
intervals (approximately 1 Hz)?
Yes
No
1 First perform all earlier checks of the main PCB, see
4
procedures" [ 290].
2 Visit your local spare parts webbank.
3 Enter the model name of your unit and check if the installed spare part
number corresponds with the spare part number indicated in the webbank.
a
Action
Return to "3.11.1 Checking
4
procedures" [ 290] of the main PCB
and continue with the next procedure.
Replace the main PCB, see
"3.11.2 Repair procedures" [
a
Action
Return to "3.11.1 Checking
4
procedures" [ 290] of the main PCB
and continue with the next procedure.
Replace the main PCB,
4
procedures" [ 293].
3 Components
|
4
293].
"3.11.1 Checking
"3.11.2 Repair
"3.11.1 Checking
Service manual
291