Read Panasonic CS-XE9CKE / CU-XE9CKE / CS-XE12CKE / CU-XE12CKE Service Manual online
B. Oxygen enrich control overview
Upon receiving ON signal from indoor unit, the outdoor vacuum pump, fan & 2 way valve will operate according to the various
protection control setting.
protection control setting.
C. Oxygen enrich protection control (O
2
supply level judgement)
1. Vacuum pump protection
•
•
•
• Base on outdoor air temp., Comp. top temp., the oxygen supply level is decided.
•
•
•
• Priority is given to the lower level.
•
•
•
• Vacuum pump operation cycle time = EOPMPS01.
•
•
•
• O
2
supply level change only after vacuum pump ON/OFF operation completed 1 cycle time if the new level is higher than
the present level.
•
•
•
• O
2
supply level change immediately if the new level is lower than the present level (avoid O
2
supply level hunting).
•
•
•
• Vacuum pump operate with ON/OFF timing according to O
2
supply level except during continuous running required by
freeze-up prevention control (F-2).
E.g. Oxygen supply level change timing (vacuum pump continuous running control, (C-2) not yet activated).
E.g. Oxygen supply level change timing (vacuum pump continuous running control, (C-2) not yet activated).
42
CS-XE9CKE CU-XE9CKE / CS-XE12CKE CU-XE12CKE
Click on the first or last page to see other CS-XE9CKE / CU-XE9CKE / CS-XE12CKE / CU-XE12CKE service manuals if exist.