Storage Tank; Ordering Replacement Parts; Troubleshooting - Carrier 19XR Series Installation, Operating And Maintenance Instructions

The pumpout oil separator comes pre-charged with 13 oz of
ISO viscosity 220 POE (Polyol Ester) oil. The pumpout com-
pressor is approved for use with ISO viscosity 220 POE oil or
ISO viscosity 68 POE oil. The pumpout compressor is also fac-
tory precharged with POE oil.
Oil should be visible in the pumpout compressor sight glass
both during operation and at shutdown. Always check the oil
level before operating the pumpout compressor. Before adding
or changing oil, relieve the refrigerant pressure through the ac-
cess valves.
Relieve refrigerant pressure and add oil to the pumpout unit
as follows:
1. Close service valves 2 and 4.
2. Run the pumpout compressor in Automatic mode for one
minute or until the vacuum switch is satisfied and com-
pressor shuts off.
3. Move the pumpout selector switch to OFF. Pumpout
compressor shell should now be under vacuum.
4. Oil can be added to the shell with a hand oil pump
through the access valve in the compressor base.
SYMPTOM
Compressor Does Not Run Main power line open
Compressor Cycles On
High-Pressure Control
Unit Operates Too Long
System Noises
Compressor Loses Oil
Copyright 2004 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 211 Catalog No. 531-984
Book 2
Tab 5a
Table 7 — Troubleshooting
PROBABLE CAUSE
Loose terminal connection
Improperly wired controls
Low line voltage
Compressor motor defective
Seized compressor
High level gage alarm
High-pressure control erratic in action
Discharge valve partially closed.
Air in system
Condenser scaled.
Condenser water pump or fans not
operating.
Isolation valves partially open
Piping vibrations
Insufficient compressor oil
Leak in system
Plugged or stuck compressor oil return check
valve
Liquid refrigerant carries oil out of
compressor
Motor shutdown on internal thermal protection
high temperature cutout.
Printed in U.S.A.
NOTE: Compressor access valve has a self-sealing fitting
which will require a hose connection with a depressor to open.
Storage Tank —
To prevent moisture and contaminants
from entering the storage tank, maintain positive pressure in
the tank when not transferring refrigerant. Leak test the storage
tank periodically.
Ordering Replacement Parts —
formation must accompany an order for Carrier-specified parts:
• machine model number and serial number
• name, quantity, and part number of the part required
• delivery address and method of shipment

TROUBLESHOOTING

Information on troubleshooting for the PPS System is in-
cluded in Table 7.
Replace fuse or reset circuit breaker.
Check connections.
Check wiring and rewire.
Check line voltage; determine location of voltage drop.
Check motor winding for open or short. Replace compressor if
necessary.
Replace compressor.
Check refrigerant level and remove excess.
Check capillary tube for pinches. Set control as required.
Open valve.
Purge system.
Clean condenser.
Start pump or fans.
Close valves.
Support piping as required. Check for loose pipe connectors.
Add oil.
Locate and repair leak.
Repair or replace valve.
Check to ensure only refrigerant vapor enters compressor suction
line. Add oil as necessary.
High temperature cutout should reset within 120 minutes.
Form 19XR-6SI Pg 16 7-04A
The following in-
REMEDY
5-04 Replaces: 19XB-1SI