Trane TXK, Installation Operation & Maintenance, Page: 26 / 30

MS-SVX10A-EN 26
Installation Outdoor Unit
Installing Connecting Pipe
1. The tapered end of the connecting pipe must
be in line with the corresponding connecting
side of the valve joint.
2. Using strength, manually tighten the nut of the
connecting pipe and with the use of a spanner,
tighten the hex nut. See Torque Table below.
Fitting pipes of
indoor unit
Hex nut
Fitting pipes
Torque wrench
Spanner
Hexagonal Nut Tightening Torque
(N . m)
6 dia. 15-20
12 dia. 50-55
Note: First, connect the connecting pipe to the
indoor unit and then connect it to the outdoor
unit. Avoid bending the pipes. Do not over-
tighten the joint as it could provoke leakage.
Cable Connection
1. Remove the right hand panel of the outdoor unit removing one
screw.
2. Remove the cable clamp and connect the power cable to the
terminal board. Secure the cables in place. The line sequence
must be consistent with the outdoor unit.
3. Replace the cable clamp to secure the power cable in place.
4. Confirm that lines are secure.
5. Replace the panel with the screw removed before.
Notes:
•
Wrong line connection may cause the failure of some
electrical componentes and parts.
•
When securing the lines in place, leave a certain degree of
freedom between the connection point and the securing point.
Cable
Clamp
Power
Cable
Power
Cable
Terminal Block - Outdoor Unit
Terminal Block - Indoor Unit
Cool/Heat
Model Diagram
WARNING!
√√√√√
Do not use mineral oil to lubricate the flare.
√√√√√
Avoid mineral oil from entering into the piping as this would
reduce the life time of the unit.
√√√√√
Always use R410A pressure rated copper; never install used
copper from other installations.
√√√√√
Do not attach a refrigerant drier to this unit.
√√√√√
The drying material may dissolve and damage the system.
√√√√√
The flares must be complete, have the correct collar height,
must be clean, and must be performed with a R410A flaring
tool.