Page 137
Troubleshooting Guides
Integrated (
Integrated (
700-
700-
2) Series
2) Series
8-31
#
3756780
- Revision D - July, 2005
SEALED SYSTEM TROUBLESHOOTING / DIAGNOSTICS TABLES
Before tapping the sealed system to check pressures, see the General Troubleshooting Guide which begins on page
9-2. Take note of problems “A” through “D”, “AA” and “BB” in the General Troubleshooting Guide, and be sure to
reference the “Pointers” in the first column under these problems. By initiating Diagnostic Mode and observing the
evaporator temperatures, it may be determined that it is unnecessary to tap the sealed system. If needed, the table
on the following page provides a quick reference for temperature/pressure correlation.
NOTE:
If entering the sealed system to check pressures, always use solder-on process valves. Do NOT use bolt-
on process valves as they are prone to leak.
NOTE:
Whenever servicing the sealed system, the high-side filter-drier must be replaced.
NORMAL OPERATING PRESSURES
PRESSURE INDICATIONS
If low-side pressure is
NORMAL
LOW
LOW
HIGH
HIGH
& high-side pressure is
NORMAL
LOW
HIGH
LOW
HIGH
possible problem is
MECHANICAL
(see General Troubleshooting Guide)
LEAK
RESTRICTION
INEFFICIENT COMPRESSOR
OVER CHARGE
Model
Normal Low-Side Pressures
Normal High-Side Pressures
700TC/I-2
700TR-2
700TF/I-2
700TF/I-2V
700BR-2
700BF/I-2
Refrigerator
Freezer
Upper Refrig.
Lower Refrig.
5 psi to 30 psi
4” vacuum to 5 psi
5 psi to 30 psi
5 psi to 30 psi
7” vacuum to 7 psi
7” vac. to 3 psi
(at 4000 RPM)
10 psi to 20 psi
3” vacuum to 2 psi
90 psi to 120 psi
90 psi to 120 psi
90 psi to 120 psi
90 psi to 120 psi
90 psi to 120 psi
90 psi to 120 psi
90 psi to 120 psi
90 psi to 120 psi