Refrigerant Piping - Blueridge BMKH09-15YN4GA Installation Manual

INSTALLATION OF REFRIGERANT PIPING
Step 5
Piping Connections to Outdoor Unit
C UTION
Use refrigeration grade tubing ONLY. No other type of tubing may be used.
Use of other types of tubing will void manufacturer's warranty. Make sure
there is enough piping to cover the required length between the outdoor
and indoor unit.
Piping Preparation
• Do not open service valves or remove protective caps from tubing ends until all
connections are made.
• Keep tubing free of dirt, sand, moisture and contaminants.
• Insulate each refrigerant pipe and condensate hose with minimum 3/8" (10 mm) wall
thermal pipe insulation.
NOTE: Insulate condensate hose to prevent sweating which may cause water stains
or wall damage.
• Bind refrigerant pipes, condensate hose and interconnecting wire together with cable
ties at 12 inch intervals.
Piping and Drain Hose Connections to Indoor Unit
NOTE: For maximum serviceability, it is recommended to have refrigerant pipe flare
connections and the drain connection on the outside.
1. Feed refrigerant pipes, drain hose and interconnecting wires
assembly through wall hole from outdoor to the indoor space.
2. Set the indoor unit on mounting bracket. Allow the indoor
unit to hinge on the top of the mounting bracket. Do not
lock down bottom of unit to mounting bracket.
3. Adjust the length of the interconnecting wires so that it can
easily reach the indoor unit electrical control box. Route and
fit the interconnecting wires into back side of indoor unit.
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