Daikin VRV IV+, Руководство по обслуживанию

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5 | Maintenance
Service manual
379
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
2 Clear the indoor unit heat exchanger from dust, leaves,… using a fin-comb or
compressed air/N
2.
CAUTION
Avoid bending or damaging the hair fins of the indoor unit heat exchanger during the
cleaning process.
Is the problem solved? Action
Yes No further actions required.
No Return to the troubleshooting of the
specific error and continue with the
next procedure.
5.4 Maintenance procedures for Branch Selector Boxes
5.4.1 To clean the cover plates
1 Clean the cover plates with a wet cloth.
NOTICE
To clean the plate work:
▪
Use water or compressed air, not warmer than 50° C.
▪
Do not use any cleaning agents or chemicals.
▪
Do not use pressurized water.
5.4.2 To check the general status of the Branch Selector Box
Prerequisite: Stop indoor unit operation via user interface, central controller, ...
Prerequisite: Turn OFF the power of the branch selector box.
Prerequisite: Turn OFF the respective circuit breaker.
1 Prior to cleaning, check installation space for oil drips. If found, check system
for signs of refrigerant shortage, check possible leaking points and repair as
needed.
2 Check if any other equipment interferes with the operation of the branch
selector box.
3 Clean the cover plates with a piece of wet cloth, see "5.4.1 To clean the cover
plates" [
4
379].
4 Open the branch selector box, see "3.15 Plate work" [
4
315].
5 Check the general status inside the cover plates.
6 Check the status of drain piping in case multi branch selectors.
7 Check the visual appearance of all components. Refer to component checks if
any irregularity is found.
8 Check the electrical connections. Tighten and secure the connections as
needed.
9 Check if power supply is in conform with legislation. See " "To check if the
power supply is conform with the regulations" [ 4 356]".
10 Check and tighten the power supply wiring on the dedicated terminal.