Wiring Diagrams; Troubleshooting; Warning - Bryant 355BAV Service And Maintenance Instructions

32°F MINIMUM INSTALLED
AMBIENT OR FREEZE
PROTECTION REQUIRED
Fig. 17 --- Freeze Protection
CAUTION
!
UNIT DAMAGE HAZARD
Failure of plastic components may occur.
Do not use ethylene glycol (Prestone II antifreeze/coolant or
equivalent automotive type).
6. Replace drain connection cap and clamp to inducer hous-
ing.
7. Replace main furnace door.
8. Propylene glycol need not be removed before restarting
furnace.

WIRING DIAGRAMS

See Fig. 15, 16 and 21 for the Deluxe 4- -Way Multipoise Furnace
wiring diagrams.

TROUBLESHOOTING

Use the troubleshooting guide, the status code LED on the
furnace control and the component test to isolate furnace
operation problems.
A more detailed troubleshooting guide is available from your
distributor.
For an explanation of status codes, refer to service label located
on back of main furnace door. (See Fig. 20.)
The furnace control stores all status codes for a period of 72
hours, regardless of 115- -v or 24- -v power interruption.
NOTE: Removing blower access panel opens blower access
panel door switch and terminates 115- -v power to furnace control.
Before removing blower access panel or turning off 115- -v power,
look into blower access panel sight glass for current LED status.
1. To retrieve status code, proceed with the following:
NOTE: NO thermostat signal may be present at furnace control
and all blower time delay periods must be completed.
a. Leave 115- -v power to furnace turned on.
b. Remove main furnace door.
c. Look into blower access panel sight glass for current
LED status code.
d. Remove blower access panel.
e. Turn setup switch SW1- -1 to ON position. (See Fig.
16 or 21 for location.)
f. Manually close blower access panel door switch. Use a
piece of tape to hold switch closed.
!
ELECTRICAL
OPERATE HAZARD
A93058
Failure to follow this warning could result in electrical
shock, personal injury, or death.
Blower access panel door switch opens 115- -v power to
furnace control. No component operation can occur
unless switch is closed. Caution must be taken when
manually closing this switch for service purposes.
g. The AMBER LED will flash the status codes in the
order of occurence. Record status codes until status
code 11 flashes (1 short and 1 long).
h. After status code #11 flashes, the status codes will
repeat until setup switch SW1- -1 is turned off.
i. Remove tape to release blower access panel door
switch and replace blower access panel.
j. Operate furnace through 1 heat cycle to test for proper
operation and check LED status.
k. If furnace is operating properly and LEDs indicate
proper operation, replace main furnace door.
2. Status codes are erased after 72 hours or they can be
manually erased by performing the following procedure:
a. Leave 115- -v power to furnace turned on.
b. Remove main furnace door.
c. Look into blower access panel sight glass for current
LED status code.
d. Remove blower access panel.
e. Turn setup switch SW1- -1 to ON position. (See Fig.
16 or 21 for location.)
f. Jumper thermostat terminals R, W/W1, and Y/Y2 on
furnace control.
g. Manually close blower access panel door switch. Use a
piece of tape to hold switch closed.
12

WARNING

SHOCK, UNIT MAY NOT