EN-3
Connecting wires and the ground wire
• Use a solid or stranded wire.
Connecting Cable: AWG16 or AWG14
Power Supply Cable: AWG12
• Use a copper wire.
• Follow local electrical codes.
• Use a double insulated cable with 600V insulation.
Valve shaft cap tightening torque
Torque
Liquid side 17.7±2.1 ft·lbf (24±3 N·m)
Gas side
22.9±2.1 ft·lbf (31±3 N·m)
Service port cap tightening torque
Torque
8.1±0.74 ft·lbf (11±1 N·m)
4 CONNECTING THE CABLE TO THE OUTDOOR UNIT
Power Supply
Cable
Connecting Cable
Power supply cable
4.7 inch(120 mm)
3.9 inch(100 mm)
Ground Wire
Ground Wire
3.9 inch(100 mm)
In case using solid wires
Stripping length: 0.7 inch (18 mm)
Be sure to make the wire hook-shaped.
In case using stranded wires
Stripping length: 0.3 inch (8mm)
For power supply cable, securely clamp a round
terminal to each end of the stripped wire.
0.7 inch(18 mm)
Copper Wire
0.3 inch(8 mm)
Copper Wire
Round terminal
3.1 inch(80 mm)
Fig.1
Cable Cover
Gauge manifold
Compound
gauge
Stop valve
(gas side)
Service port
Vacuum pump
Lo
Hi
Stop valve
(liquid side)
hose
Hexagon wrench
Valve shaft cap
OPEN
4mm
Service port
(1) Strip the copper wires. (Fig.1)
(2) Remove the Cable Cover. (Fig.2)
(3) Attach the Conduit Connector to Expansion Valve Angle with
lock nut. (Fig.3)
(4) Adjust the length of Connecting Cable. Then connect it to
Terminal Board. (Fig.4)
(5) Insert Connecting Cable and Power Supply Cable into Cable
Holder by Hook. (Fig.5)
(6) Be sure that the terminal connections are as speci
fi
ed.(Fig.6)
(7) Attach the Cable Cover with the screws. (Fig.2)
(8) Double-check that the Connecting Cable is securely in place.
Fig.2
3 AIR REMOVAL
Perform air removal using a vacuum pump.
Use a vacuum pump, gauge manifold and hoses exclusively for R410A.
(1) Remove both valve shaft caps of the stop valves.
(2) Remove the service port cap of the stop valve (gas side).
(3) Connect the gauge manifold hose to the service port and the vacuum pump.
Be sure that the hose end to be connected to the service port has a valve
core pusher.
(4) Open the gauge manifold valve and turn on the vacuum pump for 10-15
minutes.
Make sure the compound gauge reads -0.1 MPa(-76 cmHg)(-30 in. Hg).
(5) Close the gauge manifold valve.
(6) Turn off the vacuum pump.
Leave as it off for 1-2 minutes and make sure the needle of the compound
gauge does not go back.
(7) Open the stop valve (liquid side) 90° counterclockwise by turning the
hexagon wrench. Close it after 5 second, and check for gas leakage.*
(8) Disconnect the gauge manifold hose from the service port.
(9) Fully open the stop valve (liquid side) with hexagon wrench.
Turn all the way up to contact.
(10) Fully open the stop valve (gas side) with hexagon wrench. Turn all the way
up to contact.
(11) Firmly tighten the service port cap and both valve shaft caps with a torque
wrench at the speci
fi
ed tightening torque.
* Check the pipe connections for gas leak using a leakage detector or soapy
water. Regarding leakage detector, use high-sensitivity type designed specially
for R410A.
Cable Holder
AE-X2M20RU_3_LANG.indb EN-3
AE-X2M20RU_3_LANG.indb EN-3
2013-12-19 21:01:19
2013-12-19 21:01:19
