Daikin VRV IV+ Service Manual page 378

5 | Maintenance
5.3.2 To clean the cover plates
5.3.3 To clean the indoor unit heat exchanger
Service manual
378
12 Check if power supply is in conform with legislation. See
power supply is conform with the
13 Check and tighten the power supply wiring on the dedicated terminal.
14 Check the insulation on piping and refrigerant branches. Replace or fix
insulation where necessary.
INFORMATION
Depending on the setting of parameter 20-0 on the indoor unit remote controller, a
filter sign is indicated on the remote controller (or central controller if present). This
indicates that the time that was set by the parameter has passed and filter cleaning is
required. For more information, refer to installation manual for the indoor unit.
15 Remove the air filters. Clean the filter with a vacuum cleaner or water or
compressed air. When the filter is clogged and too dirty, use a soft brush and
natural detergent to clean it. Dry the filter in shade. You may need to remove
duct connections for ceiling duct type units. Refer to installation manual for
the indoor unit.
16 Make sure there is a filter on the air suction line for the indoor unit. Refer to
installation manual for the indoor unit.
INFORMATION
When air filters are not cleaned at regular intervals, dust begins to accumulate on
the indoor unit heat exchanger.
17 Check the indoor unit heat exchanger and clean him if necessary, see
"5.3.3 To clean
Normally this is not a required step if the unit is not exposed to oil mist alike
exhaust and
To clean the indoor unit heat exchanger it may be necessary to remove
bottom plate, side covers, drain pan, fan propeller and fan motor to gain
access to the indoor unit heat exchanger.
18 Check wireless remote controller battery (if present).
19 Log the maintenance in the log-book.
After outdoor unit and indoor unit (see
4
units" [ 377]) maintenance is performed, check the system via Service Checker for
normal operation. See "2.4 Symptom based
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.
1 Straighten the hair fins.
regulations" [
the indoor unit
when filters
"5.3 Maintenance procedures for indoor
troubleshooting" [
"To check if the
4
356].
4
heat exchanger" [
are cleaned regularly.
4 198].
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
378].