Evacuation And Setting In Operation - BONAIRE B009RS Installation Manual

D C - R
UAL YCLE EFRIGERATED
Unit Installation
E
VACUATION AND SETTING IN OPERATION
a) Connect two charging hoses from the charging set to the outdoor unit as shown in the diagram
below.
b) Connect the centre hose of the charging set to a vacuum pump.
c) CAUTION - turn on the vacuum pump and make sure that the low pressure gauge reading
moves from 0 kPa to -100 kPa; then evacuate the system for a further 10 minutes.
If gauge needle does not move from 0 kPa to -100 kPa, this indicates a leak. Take the
following measures: tighten all connections; if leaking stops when the tubing connections are
tightened, proceed from step c. If leaking persists even after connections are tightened, detect
the leak and repair it; be sure to proceed only after all leaks have been eliminated.
d) Close the valves of both the gas and liquid sides of the charging set and turn off the vacuum
pump. Make sure that the gauge needle does not move for about 5 minutes.
e) Disconnect the charging hoses from the vacuum pump and from the service ports of both the
three-way valves.
f) Replace the service port and valve caps of both tree-way valves and tighten them with a torque
wrench; see table of torque values listed on the previous page.
CAUTION
When performing the following steps, avoid any exposure to the service valve ports; remember
that the system is under pressure.
g) Remove the valve caps from the service valves. Position both valves to "open" using a 5mm
Hex/Allen key wrench. Open each valve by rotating the centre spindle in an anti-clockwise
direction until fully back seated.
h) Replace valve caps of both service valves. Check for gas leakage with a leak detector or
soapy water.
1. Charging Set
2. Vacuum Pump
3. Outdoor Unit
4. Service Port
5. Valve Cap
6. 3-Way Gas Valve
7. 3-Way Liquid Valve
8. Valve Cap
9. Gas Flare Connection
10. Liquid Flare Connection
11. Indoor Coil
Installation Instructions
C C
OOLING OMPONENT
Page 17