Qlima S 2320 Manuel D'utilisation page 184

NOTE ON ADDING REFRIGERANT
Some systems require additional charging depending on pipe lengths. The standard pipe length varies
according to local regulations. For example, in North America, the standard pipe length is 7.5m (25').
In other areas, the standard pipe length is 5m (16'). The refrigerant should be charged from the service
port on the outdoor unit's low pressure valve. The additional refrigerant to be charged can be
calculated using the following formula:
ADDITIONAL REFRIGERANT PER PIPE LENGTH
Connective Pipe
Length (m)
< Standard pipe length
> Standard pipe
length
For R290 refrigerant unit, the total amount of refrigerant to be charged is no more than: 387g (<=9000-
tu/h), 447g(>9000Btu/h and <=12000Btu/h), 547g(>12000Btu/h and <=18000Btu/h), 632g(>18000Btu/h and
<=24000Btu/h).
CAUTION
DO NOT mix refrigerant types.
K
ELECTRICAL AND GAS LEAK CHECKS
Before Test Run
Only perform test run after you have completed the following steps:
• Electrical Safety Checks - Confirm that the unit's electrical system is safe and operating properly
• Gas Leak Checks- Check all flare nut connections and confirm that the system is not leaking
• Confirm that gas and liquid (high and low pressure) valves are fully open
Electrical Safety Checks
After installation, confirm that all electrical wiring is installed in accordance with local and national regu-
lations, and according to the lnstallation Manual.
BEFORE TEST RUN
Check Grounding Work
Measure grounding resistance by visual detection and with grounding resistance tester. Grounding resist-
ance must be less than 0.10.
NOTE: This may not be required for some locations in the US.
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184
Air Purging
Method
Vacuum Pump
Liquid Side: Ø 6.35 (ø 0.25")
R32:
(Pipe length – standard length) x 12g/m
(Pipe length – standard length) x 0.13oZ/ft
R290:
(Pipe length – standard length) x 10g/m
Vacuum Pump (Pipe length – standard length) x 0.10oZ/ft
R410A:
(Pipe length – standard length) x 15g/m
(Pipe length – standard length) x 0.16oZ/ft
R22:
(Pipe length – standard length) x 20g/m
(Pipe length – standard length) x 0.21oZ/ft
Additional Refrigerant
N/A
Liquid Side: Ø 9.52 (ø 0.375")
R32:
(Pipe length – standard length) x 24g/m
(Pipe length – standard length) x 0.26oZ/ft
R290:
(Pipe length – standard length) x 18g/m
(Pipe length – standard length) x 0.19oZ/ft
R410A:
(Pipe length – standard length) x 30g/m
(Pipe length – standard length) x 0.32oZ/ft
R22:
(Pipe length – standard length) x 40g/m
(Pipe length – standard length) x 0.42oZ/ft