Emerson SZV22 用户手册
20
2008SSD-34
(5/08)
Single-Compressor Module
Maintenance
Back-seating
control valve
control valve
Oil pump, piston type,
high pressure
Designed to operate
up to 250 psig
Filter wrench
Alternate product:
Strap fi lter wrench
Charging hose
60" (1524mm)
Extension hose with valve
6" (152mm)
4.2 Maintenance
Tools
Figure 15 shows the tools needed for maintenance of the Compressor Module. Contact the Packager to
obtain a maintenance tool kit. These are typical air conditioning and refrigeration service tools.
obtain a maintenance tool kit. These are typical air conditioning and refrigeration service tools.
Figure 15 Maintenance Tools
CAUTION
When pressure is applied to the oil pump, the handle may extend rapidly.
Verify the Compressor Module pressure is 0 psig before removing the second-stage oil separator.
NOTE
One full stroke oil pump of the handle dispenses 1.6 oz. (47ml) of oil. Move the pump handle
slowly using long, slow, full strokes.
One full stroke oil pump of the handle dispenses 1.6 oz. (47ml) of oil. Move the pump handle
slowly using long, slow, full strokes.
NOTE
The hose fi ttings contain a core depressor that opens the Schrader valve when the fi ttings
are attached. A backseating control valve can be used to open the Schrader valves on the
Compressor Module.
The hose fi ttings contain a core depressor that opens the Schrader valve when the fi ttings
are attached. A backseating control valve can be used to open the Schrader valves on the
Compressor Module.
When the knob is turned fully counterclockwise, the core depressor is retracted and the
backseating control valve can be installed on a Schrader valve without loss of oil.
backseating control valve can be installed on a Schrader valve without loss of oil.
When the knob is turned clockwise, the core retractor is extended, opening the Schrader valve.