3
- 23
2WAY SYSTEM
Outdoor Unit Repair Procedures
3
7. Charging Compressor Oil
7-3. Charging Additional Compressor Oil (after replacing compressor)
The rated amount of oil is pre-charged in the compressors as given below:
When replacing a faulty compressor, be sure to first measure the amount of remaining oil in the compressor.
Charge additional new oil equal to the difference in the remaining oil and the rated amount as listed above.
For example: Type of replaced compressor: C-SDN453H8B
Remaining oil in the removed compressor: 2.2
Additional oil to be charged: 2.2 (remaining oil in the removed compressor) – 1.7 (rated oil amount) = 0.5
* If the result is a negative amount (remaining oil in the removed compressor is less than the rated amount), it is not
necessary to discharge the extra oil from the system.
For the method used for additional oil charging after compressor replacement, refer to “7-1. If Refrigerant Has
Already Been Charged to Outdoor Unit.”
The oil absorbs moisture readily. This work must be completed quickly.
CAUTION
High-pressure outlet port
(for ø7.94mm-dia connector)
Low-pressure outlet port
(for ø7.94mm-dia connector)
Oil balance tube service port
(for ø7.94mm-dia connector)
Gas tube service port
(for ø7.94mm-dia connector)
10HP / 12HP type
Oil
Manifold gauge
Hi
Lo
Vacuum pump
Fig. 13
Model name
Compressor model
Q'ty
Pre-charged amount of oil (liters)
U-8ME1E8
C-9RVN393H0S
1
1.9
U-10ME1E8
C-9RVN273H0F
1
1.9
C-SDN453H8B
1
1.7
U-12ME1E8
C-9RVN273H0F
1
1.9
C-SDN523H8B
1
1.7
U-14ME1E8
C-9RVN393H0S
1
1.9
C-SDN453H8B
1
1.7
U-16ME1E8
C-9RVN393H0S
1
1.9
C-SDN523H8B
1
1.7
U-18ME1E8
C-9RVN393H0S
1
1.9
C-SDN453H8B
2
1.7
U-20ME1E8
C-9RVN393H0S
1
1.9
C-SDN523H8B
2
1.7
SM830186-00̲2WAY ECO-i.indb 23
SM830186-00̲2WAY ECO-i.indb 23
2010/12/08 14:27:40
2010/12/08 14:27:40