Carrier 38AQ034 User Manual
Page 8
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NOTES
1 All 3 outdoor fans must be operating
2 To be used with approved 40RR combinations only
3. Applies to all approved combinations.
Fig. 10 — Cooling Cycle Charging Chart, 40RR/38AQ034
Oil Charge (Table 1
) — Allow unit to run for about
20 minutes. Stop unit and check compressor oil level. Add
oil only if necessary to bring oil into view in sight glass.
Use
only
Carrier-approved
compressor
oil.
Approved
oils are:
Suniso 3GS
Capella B1
DuPont Synthetic
Refrigeration Oil (150 SSU only)
Zerol 150 (synthetic)
Do not reuse drained oil or use any oil that has been
exposed to atmosphere. Procedures for adding or remov
ing oil are given in Carrier Standard Service Techniques
Manual,Chapter 1, Refrigerants.
If oil is added, run unit for additional 10 minutes. Stop
unit and check oil level. If level is still low, add oil only
after
determining
that
piping
system
is
designed
for
proper oil return and that the system is not leaking oil.
Check Operation
of
all
safety
controls.
Replace
all service panels. Be sure that control panel cover is
closed tightly.