10 TEST OPERATION
Check and test operation
Be sure to test the piping connections for gas leak.
• Check the flare nut connections, valve stem cap connections
and service port cap connections for gas leak with a leak
detector or soap water.
Test operation
• To test the system, push and hold RESET button for 10 sec. (There will be one short beep.)
11 INSTALLATION/SERVICING TOOLS
Tools
Tools
Gauge manifold
Charge hose
Electronic balance
for refrigerant
charging
Torque wrench
(nominal diam. 1/2,
5/8)
: Newly prepared (They are special requirements for R410A, separated from those for R22.)
" : Existing tools are available.
For the details of the tools, refer to the Installation manual of the outdoor unit.
Applicable to R22 model
"
• Service port cap connection
• Valve stem cap connection
Tools
"
Flare tool (clutch
type)
Gauge for
–
projection
adjustment
"
Vacuum pump
adapter
Gas leakage
detector
23
Flare nut connections
(Indoor unit)
Flare nut connections
(Outdoor unit)
Applicable to R22 model
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EN