Bryant 369RAN Manual Do Utilizador
d. If purging takes longer than 15 sec and no flame has
been established, burner stops. Push reset button on front
of primary control to restart burner.
of primary control to restart burner.
e. For detailed information on operation of primary control,
refer to instructions included with furnace.
After all the setup procedures mentioned above have been com-
pleted, the burner should be allowed to operate and an inspection
mirror should be used to observe the flame pattern at tip of nozzle.
Any irregularities such as burning to 1 side or pulsating flame
patterns should be corrected by changing nozzle.
pleted, the burner should be allowed to operate and an inspection
mirror should be used to observe the flame pattern at tip of nozzle.
Any irregularities such as burning to 1 side or pulsating flame
patterns should be corrected by changing nozzle.
III.
FAN ADJUSTMENT CHECK
This furnace is equipped with a 4-speed direct-drive motor to
deliver a temperature rise within range specified on rating plate,
between return and supply plenums, at external duct static pressure
noted on rating plate.
deliver a temperature rise within range specified on rating plate,
between return and supply plenums, at external duct static pressure
noted on rating plate.
WARNING:
When operating furnace in heating mode,
static pressure and temperature rise (supply-air tempera-
ture minus return-air temperature) must be within those
limits specified on rating label. Failure to follow this
warning could lead to severe furnace damage.
ture minus return-air temperature) must be within those
limits specified on rating label. Failure to follow this
warning could lead to severe furnace damage.
Adjust fan speed ACCORDING TO OIL INPUT SELECTED so
that temperature rise is within rise range specified on rating plate.
(See Table 11.) Consult wiring diagram for speed changes on
direct-drive motor.
that temperature rise is within rise range specified on rating plate.
(See Table 11.) Consult wiring diagram for speed changes on
direct-drive motor.
To adjust fan off time, set DIP switches on control board to obtain
desired timing. (See Fig. 5.)
desired timing. (See Fig. 5.)
IV.
LIMIT CONTROL CHECK
After furnace has been in operation for at least 15 minutes, restrict
return-air supply by blocking filters or closing return registers and
allow furnace to shut down on high limit. The burner should shut
off, and main blower should continue to run.
return-air supply by blocking filters or closing return registers and
allow furnace to shut down on high limit. The burner should shut
off, and main blower should continue to run.
Remove restriction, and burner should come back on in a few
minutes.
minutes.
V.
FOR YEAR-ROUND AIR CONDITIONING
This furnace is designed for use in conjunction with cooling
equipment to provide year-round air conditioning. The blower has
been sized for both heating and cooling, however, fan motor speed
may need to be changed to obtain necessary cooling airflow.
equipment to provide year-round air conditioning. The blower has
been sized for both heating and cooling, however, fan motor speed
may need to be changed to obtain necessary cooling airflow.
VI.
HEATING
The blower speed is factory set to deliver required airflow at
normal duct static pressure.
normal duct static pressure.
VII.
COOLING
The blower speed may be field adjusted to deliver required airflow
for cooling application. (See Table 12.)
for cooling application. (See Table 12.)
VIII.
CONSTANT BLOWER SWITCH
This furnace is equipped with a constant low-speed blower option.
Whenever room thermostat is not calling for heating or cooling,
blower runs on low speed in order to provide air circulation. If
constant blower option is not desired, the rocker switch on top of
cabinet may be used to turn off constant speed.
Whenever room thermostat is not calling for heating or cooling,
blower runs on low speed in order to provide air circulation. If
constant blower option is not desired, the rocker switch on top of
cabinet may be used to turn off constant speed.
MAINTENANCE
WARNING:
The ability to properly perform mainte-
nance on this equipment requires certain expertise, me-
chanical skills, tools, and equipment. If you do not
possess these, do not attempt to perform any maintenance
on this equipment other than those procedures recom-
mended in the User’s Manual. FAILURE TO FOLLOW
THIS WARNING COULD RESULT IN POSSIBLE
DAMAGE TO THIS EQUIPMENT, SERIOUS PER-
SONAL INJURY, OR DEATH.
chanical skills, tools, and equipment. If you do not
possess these, do not attempt to perform any maintenance
on this equipment other than those procedures recom-
mended in the User’s Manual. FAILURE TO FOLLOW
THIS WARNING COULD RESULT IN POSSIBLE
DAMAGE TO THIS EQUIPMENT, SERIOUS PER-
SONAL INJURY, OR DEATH.
WARNING:
Before performing any service functions,
unless operations specifically require power to be on,
make sure all utilities are turned off upstream of appli-
ance. Failure to comply with this warning will cause a fire
hazard and/or bodily harm.
make sure all utilities are turned off upstream of appli-
ance. Failure to comply with this warning will cause a fire
hazard and/or bodily harm.
WARNING:
To avoid personal injury, make sure elec-
trical supply power is off before servicing. Failure to
follow this warning could lead to electrical shock, fire, or
death.
follow this warning could lead to electrical shock, fire, or
death.
I.
GENERAL
In order to keep this furnace in good operating condition and to
maintain its warranty, the furnace MUST be serviced on an annual
basis. This servicing includes a nozzle change, a burner inspection,
a visual check of tube passages through flue outlet and cleanout
ports, and a visual inspection of combustion chamber when burner
is removed.
maintain its warranty, the furnace MUST be serviced on an annual
basis. This servicing includes a nozzle change, a burner inspection,
a visual check of tube passages through flue outlet and cleanout
ports, and a visual inspection of combustion chamber when burner
is removed.
Depending on above inspection, service could also include a
cleaning and vacuuming of heat exchanger tubes and possibly the
heat exchanger drum section.
cleaning and vacuuming of heat exchanger tubes and possibly the
heat exchanger drum section.
Removal of any heat exchanger components which are sealed by
gaskets requires replacement of gasket.
gaskets requires replacement of gasket.
TABLE 10—BURNER INPUT AND NOZZLE SIZE
FURNACE
INPUT
(BTUH)
FIRING
RATE
GAL/HR (US)
RIELLO OIL BURNER
PUMP
PRESSURE
(PSIG)
No. 40
Series Model
Nozzle
70,000
0.50
F3
0.40 - 70A
160
91,000
0.65
F3
0.50 - 70W
170
105,000
0.75
F3
0.65 - 70W
135
119,000
0.85
F5
0.75 - 70B
130
140,000
1.00
F5
0.85 - 70W
140
154,000
1.10
F5
1.00 - 70W
125
TABLE 11—SPEED SELECTION
UNIT
SIZE
FURNACE
INPUT
(BTUH)
RECOMMENDED
BLOWER
SPEED
036105/
060120
70,000/119,000
Med-Low
91,000/140,000
Med-High
105,000/154,000
High
Fig. 5—Fan Off Time DIP Switch Settings
(Black Box Represents Switch Position)
A95115
1
2
60 Sec
1
2
90 Sec
DELAY OFF DIP SWITCH SETTINGS
1
2
1
2
1
2
120 Sec
1
2
150 Sec
—10—