Connecting The Tubes; Piston Assembly - BONAIRE B009RS Installation Manual

D C - R
UAL YCLE EFRIGERATED
Unit Installation
2. Before brazing wrap a wet cloth around pipes next to the indoor unit to prevent hot pipes
from melting foam insulation in the unit. Make sure the flame or heat from the flame does
not contact the unit casing or wiring, or damage will occur
3. Heat the pipe up as per the illustration
4. Use nitrogen gas for flowing though
piping during pipe brazing. If oxygen,
acetylene or fluorocarbon gas is used, it
will cause an explosion or poisonous gas.
5. Use a regulator valve when nitrogen gas
flowing is performed during brazing. The
gas pressure should be maintained within
0.03 to 0.05Mpa. If an excessively high
pressure is used, it will cause an
explosion.

Connecting the tubes

1. Connect and tighten the flare nuts to the
refrigeration valves on the outdoor unit and
to the male connectors of the indoor unit.
2. Coat the flared surfaces lightly with
refrigeration oil to improve sealing.
3. Two spanners of the correct size should be
used. A holding spanner should be used on
the back-up nut and a tightening spanner
(Torque spanner recommended) on the flare
nut.
Tighten the flare nut with the tightening
4.
spanner while ensuring the holding spanner
remains securely in place.
Note: First manually tighten the flare nuts,
and then use wrenches. See table for
torque tightening values.
5. Check for leaks. Use leak detect solution
or soap solution for leak testing. An
electronic leak detector is recommended.
IMPORTANT
If the recommended tightening procedure is not followed and the fitting is
subsequently damaged or the thread stripped it will NOT be covered by our
manufacturer's warranty. Any service calls required to repair this fault may be
deemed chargeable to the Dealer/Installer.

Piston Assembly

Should you need to remove or
check either of the pistons during
installation, please ensure that
they are correctly refitted as per
the following diagrams.
Installation Instructions
C C
OOLING OMPONENT
Indoor Unit
Piston
Assembly
Toque Values
Description
Flare Sizes 9.58mm
(⅜")
Torque (N.M.) 40-45
Tube (Inches)
15.88mm 19.05mm
(⅝") (¾")
70-75 80-85
Outdoor Unit
Piston
Assembly
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