Bryant FA4A - Manual (Page 16)

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Fig. l4"’A-Coil Component Lpç^tion
a. Attach jïiajiifüld/gage sfit to scrvict valves.
b. Front seat (dose) liquid tube service valve.
c. Start unit in cooling mode.
d. Run unit until vapor pressure reaches 5 psig (35kPa).
e. Turn off electrical supply to outdoor unit.
£ Front seat vapor service valve.
g, Recover any remalning .refrigerant.
NOTE: All outdoor unit coils will hold only factory-supplied
amount of refrigerant. Excess refrigerant;, such as in long-tube
applications, may cause compressor internal pressure relief valve
to open (indicated by sudden rise in vapor pressure) before vapor
pressure reaches 5 psig C35kPa), If this occurs, tiim riff electrical
supply to outdoor unit immediately, front seat vapor service valve,
and recover any remaining
refrigerant,
2. Turn off electrical supply to indoor unit.
3. Disconnect condensate drain tube,
4. Disconnect liquid and vapor tubes from indoor coil. Use a
tubing cutter to cut tubes.
NOTE; If a torch is used to unbrace tube set, protect fitting panel
with a wet cloth or braze shield, as necessary.
5. Remove coil access panel,
6. Remove clip securing fitting panel to condensate drain pan.
Remove fitting panel,
7. Remove any shipping dips, including horizontal pan clip,
and slide coil/condcnsatc pan assembly out of unit.
8. Upflow or Horizontal Applications Only—Remove hori­
zontal condensate drain pan from coij/condensate pan
assembly. (See Fig. 14.)
9- Remove 4 coil brackets. (See Fig. 14.)
10. Remove screws at delta plates and remove coil from vertical
condensate drain pan, (Sec Fig, 14,)
11. Horizontal Applications Only— Remove coil top seal
(attached with, 4 screws) and J-shaped tube from original
coil and install it in same position on new coil. (See Fig,
14.)
12. Place coil assembly in plastic condensate pan and secure
using 4 screws through delta plate, (See Fig- ,14.)
13. Horizontal andUpflow Applications Only—Attach 4 coil
brackets to coil/pan assembly. (See Fig. 14.)
14. Horizontal Applications only—Place horizontal conden­
sate pan into position on coil/pan assembly,
NOTE: Installation of horizontal cemdenfiate pan is not necessary
for upflow or downflow applications,
15. Slide complete assembly into unit,
16. Reinstall fitting panel and reconnect clip securing fitting
pane] to condensate drain pan.
17. Horizontal Applleotions Only — Reinstall horizontal pan
clip. Secure with 1 screw. (See Fig. 14.)
18. Reinstall coil access panel.
19. Reconnect liquid and vapor refrigerant tubes, and conden­
sate drain tube. Install Elter-drjer(s), if necessary.
20. Eyhcu^ate tube set and indoor coil, back seat (open) liquid
and vapor service valves.
21. Turn'bn electrical supplies to indoor and outdoor units.
22. Check system refrigerant charge and operation. See "Split-
System Residential Air Conditioners and Heat Pumps
Service Manual" for further information,
II. SLOPE COIL UNITS .
If it is determined that system does not have leaks and refrigerant
is not contaminated, proceed as follows:
1. Recover system refrigerant.
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