Compressor; Lubrication; Replacing Compressor - Carrier 50FC 04 Series Service And Maintenance Instructions

6 Ton Std Tier Hot gas Reheat R-410A CHARGING CHART
(Unit must run on Sub-cooling mode)
59.9 140
Add Charge if Above the Curve
48.8 120
37.7 100
26.6 80
Remove Charge if Below the Curve
15.5 60
4.4 40
-6.7 20
150 200 250 300
1034 1379 1723 2068
Compressor Discharge Pressure, [psig/Kpa]
Fig. 31 — Cooling Charging Chart — 6 Ton with
Hot Gas Reheat (Humidi-MiZer

COMPRESSOR

Lubrication

The compressor is charged with the correct amount of oil at the
factory.
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in damage to
components.
The compressor is in a R-410A refrigerant system and uses a
polyolester (POE) oil. This oil is extremely hygroscopic,
meaning it absorbs water readily. POE oils can absorb
15 times as much water as other oils designed for HCFC and
CFC refrigerants. Avoid exposure of the oil to the atmosphere.
350 400 450 500 550 600
2413 2758 3102 3447 3792 4136
48TC003192 rev. A
® System) Option
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.
FIRE, EXPLOSION HAZARD
Failure to follow this warning could result in death, serious
personal injury and/or property damage.
Never use non-certified refrigerants in this product. Non-
certified refrigerants could contain contaminates that could
lead to unsafe operating conditions. Use ONLY refrigerants
that conform to AHRI Standard 700.

Replacing Compressor

NOTE: Only factory-trained service technicians should remove
and replace compressor units.
INSTALLATION SITE DAMAGE
Failure to follow this caution can result in damage to
equipment location site.
R-410A refrigerant contains polyolester (POE) oil that can
damage the roof membrane. Caution should be taken 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.
18
WARNING
WARNING
CAUTION