Table of Contents
Advertisement
40
Operation
CAUTION
Compressor Damage!
Do not allow liquid refrigerant to enter the suction line. Liquid charge
at the liquid line only. Failure to follow all instructions could result in
equipment damage.
[ ] If operating pressures indicated an overcharge, slowly (to minimize oil
loss) recover refrigerant at the liquid line service valve.
Important: Do NOT release refrigerant to the atmosphere! Refer to latest
version of the general service bulletin MSCU-SB-1.
CAUTION
Freezing Temperatures!
Do not allow liquid refrigerant to contact skin. If it does, treat the injury
similar to frostbite. Slowly warm the affected area with lukewarm water
and seek immediate medical attention. Direct contact with liquid
refrigerant may cause minor or moderate injury.
[ ] Be sure that all remote sensing bulbs are properly installed in bulb wells
with heat transfer compound. Remote bulb capillary tubes must be secured
(i.e., protected from vibration and abrasion) and undamaged.
[ ] Inspect the unit. Remove any debris, tools and hardware. Secure all exte-
rior panels, including control and compressor access panels. Replace and
tighten all retaining screws.
Temporary Unit Shutdown and Restart (Not Servicing)
To shut down the unit for a short time:
1. Open the unit circuit breaker; then remove Control Circuit Fuse (FU) from
the main unit control panel. Once Control Circuit Fuse (FU) is removed,
re-close the unit disconnect switch. This will ensure that the compressor
2. Stop operation of the chilled water pump. Turn handle on pump starter
panel to "OFF".
To restart the unit after a temporary shutdown:
1. Restart the chilled water pump, by turning handle on pump starter panel
to "ON" position.
2. Open the unit circuit breaker; then reinstall Control Circuit Fuse (FU) in
the main control panel. Once fuse (FU) is installed, close the unit circuit
breaker.
CSRA-SVX01A-EN
Advertisement
Table of Contents
