Toshiba MMK-AP0057HP-E1 Service Manual page 87

Tightening connection
Outer dia. of copper pipe
▼ Tightening torque of flare pipe connections
REQUIREMENT
Piping with outdoor unit
1111058602_EN.indd 20
CAUTION
Tightening torque
Heat insulation
Heat insulation for the pipes should be done
separately for the liquid side and gas side.
Because both of the liquid and gas side pipes
become a low temperature during cooling
operation, sufficient heat insulation should be
done to prevent condensation.
• Heat insulator with a heat resistance of 120°C or
more must be used for the gas side pipe.
Airtight test/Air purge, etc.
For airtight test,air purge, addition of refrigerant,
and gas leak check, follow the Installation Manual
attached to the outdoor unit.
Open fully valves of the outdoor
unit
Gas leak check
Check with a leak detector or soap water whether
gas leaks or not, from the pipe connecting section
or cap of the valve.
REQUIREMENT
Use a leak detector manufactured exclusively
HFC refrigerant (R410A, R134a, etc.).
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FILE NO. SVM-17046
Installation Manual
11/24/16 11:41 AM