18-AC51D1-10E-EN
9
STEP 2
- Remove the pressure tap cap and
valve cores from both service valves.
STEP 3
- Purge the refrigerant lines and indoor
coil with dry nitrogen.
STEP 4
- Wrap a wet rag around the valve body
to avoid heat damage and continue the dry nitro-
gen purge.
Braze the refrigerant lines to the service valves.
For units shipped with a field-installed external
drier, check liquid line filter drier’s directional flow
arrow to confirm correct direction of refrigeration
flow (away from outdoor unit and toward evapo-
rator coil) as illustrated. Braze the filter drier to
the Liquid Line.
Continue the dry nitrogen purge. Do not remove
the wet rag until all brazing is completed.
Important: Remove the wet rag before stopping
the dry nitrogen purge.
Note:
Install drier in Liquid Line.
NOTE:
NOTE:
Precautions should be taken to avoid
Precautions should be taken to avoid
heat damage to basepan during brazing. It is
heat damage to basepan during brazing. It is
recommended to keep the flame directly off of
recommended to keep the flame directly off of
the basepan.
the basepan.
3-4” from valve
Summary of Contents for 4TTR4018-060
Page 25: ...18 AC51D1 10E EN 25 PRINTED FROM D158513P01 018L Models PRINTED FROM D158515P01 060L Models...
Page 26: ...26 18 AC51D1 10E EN Section 17 Wiring Diagrams 018N 019N 024N 025N 042N 049N Models...
Page 27: ...18 AC51D1 10E EN 27 018N 019N 024N 025N 042N 049N Models...
Page 28: ...28 18 AC51D1 10E EN PRINTED FROM D157362P05 REVB 030N 036N 048N Models...
Page 29: ...18 AC51D1 10E EN 29 PRINTED FROM D157362P05 REVB 030N 036N 048N Models...
Page 30: ...30 18 AC51D1 10E EN 060N Models...
Page 31: ...18 AC51D1 10E EN 31 060N Models...
Page 34: ...34 18 AC51D1 10E EN 060L Models...
