Scroll compressor replacement – Trane INTELLIPAK ™ ™ ™ ™ ™ Commercial Single-Zone Rooftop Air Conditioners with CV or VAV Control User Manual
Page 107
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Service & Maintenance (Continued)
Figure 5-1
Belt Tension Measurement and Deflection Ranges
Deflection Force (Lbs.)
Super
Steel Cable
Belts
Gripbelts
Gripnotch
Gripbelts
Cross Small P.D
Section
Range
Min.
Max.
Min.
Max.
Min.
Max
3.0 -3.6
3
4 1/2
3 7/8
5 1/2
3 1/4
4
A
3.8 - 4.8
3 1/2
5
4 1/2
6 1/4
3 3/4
4 3/4
5.0 - 7.0
4
5 1/2
5
6 7/8
4 1/4
5 1/4
3.4 - 4.2
4
5 1/2
5 3/4
8
4 1/2
5 1/2
B
4.4 - 5.6
5 1/8
7 1/8
6 1/2
9 1/8
5 3/4
7 1/4
5.8 - 8.8
6 3/8
8 3/4
7 3/8
10 1/8
7
8 3/4
Deflection Force (Lbs.)
358
358 Gripnotch
Belt
Gripbelts
Belts
Cross Small P.D
Section
Range
Min.
Max.
Min.
Max.
4.4 - 8.7
------
------
10
15
5V
7.1 - 10.9 10 1/2
15 3/4
12 7/8
18 3/4
11.8 - 16.0
13
19 1/2
15
22
Compressor Bracket
Do Not Remove
TOP VIEW
Minimum 18" straight unobstructed
piping between the Suction Filter/Drier
and the first Oil Separator Tee.
Oil Separator Tee
Common Suction Line from Evaporator
30 Ton Compressor Pair Illustrated
Scroll Compressor Replacement
The compressor manifold system was purposely designed
to provide proper oil return to each compressors. The refrig-
erant manifold system must not be modified in any way.
Note: Altering the compressor manifold piping may
cause oil return problems and compressor failure.
Should a compressor replacement become necessary and
a suction line filter drier is to be installed, install it a mini-
mum of 18 inches upstream of the oil separator tee. See
Figure 5-2.
Anytime a compressor is replaced, the oil for each com-
pressor within the manifolded set must be replaced.
The scroll compressor uses Trane OIL-42 without substitu-
tion. The appropriate oil charge for a 9 and 10 Ton scroll
compressor is 8.5 pints. For a 14 and 15 Ton scroll com-
pressor, use 13.8 pints.
Note: Do Not release refrigerant to the
atmosphere! If adding or removing refrigerant is
required, the service technician must comply with
all Federal, State and local laws. Refer to general
service bulletin MSCU-SB-1 (latest edition).
Figure 5-2
Suction Line Filter/Drier Installation