Air Removal; Connecting The Cable To The Outdoor Unit - Sharp AE-X2M20RU Installation Manual

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 specifi 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.
Valve shaft cap tightening 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)
4

CONNECTING THE CABLE TO THE OUTDOOR UNIT

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.
Connecting Cable
4.7 inch(120 mm)
3.9 inch(100 mm)
Ground Wire
In case using solid wires
Stripping length: 0.7 inch (18 mm)
Be sure to make the wire hook-shaped.
0.7 inch(18 mm)
Copper Wire
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.
0.3 inch(8 mm)
Copper Wire
AE-X2M20RU_3_LANG.indb EN-3 AE-X2M20RU_3_LANG.indb EN-3
Service port cap tightening torque
Torque
8.1±0.74 ft·lbf (11±1 N·m)
Power supply cable
3.9 inch(100 mm)
3.1 inch(80 mm)
Ground Wire
Round terminal
Fig.1
Service port
Torque
(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 specifi ed.(Fig.6)
(7) Attach the Cable Cover with the screws. (Fig.2)
(8) Double-check that the Connecting Cable is securely in place.
Cable Holder
EN-3
Gauge manifold
Compound
gauge
Stop valve
(liquid side)
hose
Vacuum pump
Stop valve
(gas side)
Hexagon wrench
4mm
OPEN
Valve shaft cap
Cable Cover
Power Supply
Fig.2
Cable
Lo Hi
Service port
2013-12-19 21:01:19 2013-12-19 21:01:19