Compressor; Lubrication; Replacing Compressor - Carrier WeatherMaster 50HCQ04-12 Service And Maintenance Instructions

Fig. 26 — Cooling Charging Chart — 50HCQD09
Fig. 27 — Cooling Charging Chart — 50HCQD12
Circuit A
Fig. 28 — Cooling Charging Chart — 50HCQD12

COMPRESSOR

Lubrication

The compressor is charged with the correct amount of oil at the
factory.
INSTALLATION SITE DAMAGE
Failure to follow this caution can result in damage to equip-
ment location site.
Puron (R-410A) refrigerant contains polyolester (POE) oil
that can damage the roof membrane. Caution should be tak-
en to prevent POE oil from spilling onto the roof surface.
The factory also recommends that the suction and discharge
lines be cut with a tubing cutter instead of using a torch to
remove brazed fittings.

Replacing Compressor

FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in death, serious
personal injury and/or property damage.
Never use air or gases containing oxygen for leak testing or
for operating refrigerant compressors. Pressurized mixtures
of air or gases containing oxygen can lead to an explosion.
16
Circuit B
CAUTION
WARNING