Climate 5000 MS – 6720887246 (2018/04)
19
Air Evacuation
N=2 (one-twin models), N=3 (one-three models), N=4 (one-four
models), N=5 (one-five models). Depending on the length of connective
piping or the pressure of the evacuated system, you made need to add
refrigerant. Refer to table below for refrigerant amounts to be added:
ADDITIONAL REFRIGERANT PER PIPE LENGTH
Connective Pipe Length
(m)
Air Purging
Method
Additional Refrigerant
Pre-charge pipe length
(ft/m) (Standard pipe
length x N)
Vacuum Pump
N/A
More than (Standard
pipe length x N) ft/m
Vacuum Pump
Liquid Side: Ø 6.35 (Ø 1/4˝)
R32:
(Pipe length – standard length) x 12g/m
(Pipe length – standard length) x 0.13oZ/ft
R410A:
(Pipe length – standard length) x 15g/m
(Pipe length – standard length) x 0.16oZ/ft
Liquid Side: Ø 9.52 (Ø 3/8˝)
R32:
(Pipe length – standard length) x 24g/m
(Pipe length – standard length) x 0.26oZ/ft
R410A:
(Pipe length – standard length) x 30g/m
(Pipe length – standard length) x 0.32oZ/ft
Table 10.
NOTE:
The standard pipe length is 7.5m.
9.3
Safety and Leakage Check
Electrical Safety Check
Perform the electrical safety check after completing installation.
Cover the following areas:
1. Insulated resistance
The insulated resistance must be more than 2MО.
2. Earthing work
After finishing earthing work, measure the earthing resistance by
visual detection using the earthing resistance tester. Make sure the
earthing resistance is less than 4О.
3. Electrical leakage check (perform test while unit is on)
During a test operation after completed installation, the use the
electroprobe and multimeter to perform an electrical leakage check.
Turn off the unit immediately if leakage occurs. Try and evaluate
different solutions until the unit operates properly.
Gas Leak Check
1. Soap water method:
Apply a soap-water solution or a liquid neutral detergent on the
indoor unit connections or outdoor unit connections with a soft
brush to check for leakage of the connecting points of the piping. If
bubbles emerge, the pipes are experiencing leakage.
2. Leak detector
Use the leak detector to check for leakage.
NOTE:
The illustration is for example purposes only. The actual order of A, B,
C, D and E on the machine may be slightly different from the unit you
purchased but the general shape will remain the same.
Indoor unit
check point
Outdoor unit
check point
Fig. 32.
A, B, C, D are points for one-four type.
A, B, C, D and E are points for the one-five type.
