ESIE16-03B
|
Part 2. Troubleshooting
2.4. Component checklist
22/08/16
|
Version 1.1
Page 53
SA R32 Sky-Air RZAG-L
2.4.2.5. High pressure switch
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 (refer to
"Basic removal" on page 67
).
4. Disconnect the high pressure switch connector from applicable PCB.
5. Recover the refrigerant.
6. Pressurize the refrigerant circuit at 41.7 bar with nitrogen.
7. Measure the switch contacts between high pressure switch connector: pins 1-2; the switch must be open.
8. Replace the high pressure switch if the contact is not open (refer to
"Replacing high pressure switches" on page 86
).
9. Lower the refrigerant circuit pressure to 30 bar.
10. Measure the switch contacts between high pressure switch connector: pins 1-2; the switch must be closed.
11. Replace the high pressure switch if the contact is not closed (refer to
"Replacing high pressure switches" on page 86
).
Technical specification
Description
The high pressure switch has a normally closed contact. If the
pressure exceeds 41.7 (+0 / -1) bar the contact will open; if the
pressure drops below 32 (±2) bar the contact will close.
The high pressure switch is a safety component that stops the
compressor if overpressure is detected in the refrigerant circuit.
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
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 ...