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ESIE16-03B
|
Part 2. Troubleshooting
2.4. Component checklist
22/08/16
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Version 1.1
Page 47
SA R32 Sky-Air RZAG-L
2.4.2. Outdoor unit
2.4.2.1. 4-way valve
1. Switch off the Daikin unit via the user interface.
2. Switch off the Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required.
4. Loosen the screw and remove the coil from the 4-way valve (refer to
"Replacing 4-way valve coil" on page 75
).
5. Unplug 4-way valve connector from applicable PCB.
6. Switch on the Daikin unit via the user interface, start cooling/defrost operation.
If the temperature after the heat exchanger drops, proceed with next step.
If the temperature after the heat exchanger rises, the 4-way valve is stuck in heating position, replace the 4-way valve body
(refer to
"Replacing 4-way valve body" on page 73
).
If the temperature after the heat exchanger does not rise, check the refrigerant pressure by connecting a manifold to one of
the service ports.
-
If no pressure is measured, perform a pressure test and fix any leaks.
-
If pressure is measured, the 4-way valve is stuck in the middle, confirm by determining the position of the 4-way valve as
described below and replace the 4-way valve (refer to
"Replacing 4-way valve body" on page 73
).
7. While listening to the 4-way valve, place a round permanent magnet on the core of the solenoid valve. If you do not hear the
4-way valve switching, it must be replaced (refer to
"Replacing 4-way valve body" on page 73
).
1. Switch off Daikin unit via the user interface.
2. Switch off Daikin unit with the field supplied circuit breaker.
3. Remove plate work when required.
4. Switch on the Daikin unit, start heating operation.
Technical specification
Description
-
The 4-way valve directs the super heated refrigerant discharged
from the compressor to the indoor heat exchanger in case of heat-
ing operation or to the outdoor heat exchanger in case of defrost-
ing and cooling operation.
Location
Piping diagram
Wiring diagram
Switch box
Component overview of unit
See
"Outdoor unit" on
page 117
.
See
"Outdoor unit" on
page 115
.
See
"Outdoor unit" on
page 122
.
See
"Outdoor unit" on page 119
.
Check procedure
Mechanical check
W
ARNING
: R
ISK
OF
F
IRE
When reconnecting a connector to the PCB, do not apply force, as this may damage the connector or connector pins of
the PCB.
C
AUTION
- R
ISK
OF
LIQUID
ENTERING
THE
COMPRESSOR
To prevent damage to the compressor the step below must only be done once.
Electrical check
Содержание RZAG100L7V1B
Страница 14: ...ESIE16 03B Part 1 Introduction 1 4 How to use Page 14 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...
Страница 60: ...ESIE16 03B Part 2 Troubleshooting 2 5 Other capacity range Page 60 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...
Страница 98: ...ESIE16 03B Part 5 Appendix Page 98 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...