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HAS EXTRA AIR SOLENOID AND TIMERS
FAN LIMIT SWITCH SETTINGS
MANUAL SELECTOR SWITCH
DIAL WHEEL
DIAL WHEEL
90° F, 120° F, AND 200° F SET POINTS 200° F, 120° F, AND 90° F SET POINTS
Similarly operating White Rogers and Honeywell fan limit controls respectively shown above. The
manual selector switch should be at
AUTOMATIC
for heating applications.
MANUAL
setting
can be used for constant air circulation with or without burner operation.
1. As the burner fires the heat exchanger temperature rises. The fan control starts the blower
motor at 120° F and sends heated air into the room.
2. After the burner cycles off the heated air will gradually cool to 90° F, the fan limit switch
will open and cut power to the blower motor.
3. If there is a malfunction and the heated air reaches 200° F, the control will cut the burner’s
power (amber light goes out) but the blower will continue to run trying to cool the
exchanger. This is a problem that needs corrected. It may be due to excessive restriction
of heated air from the heater, a failed blower motor, obstructed blower inlet, or too much oil
being fired in the chamber. Once the heated air is cooled sufficiently the burner will be
allowed to get power again (amber light on) and fire. This process will cycle repeatedly
until the problem is corrected or the room thermostat stops calling for heat
4. The 90°F and 120°F settings can be adjusted if there is unusual cycling of the blower. To
maintain warranty, consult your dealer on how to do this and get the flame sized properly.
Содержание 155
Страница 21: ...Page 21 of 21 APPLIES TO ALL HEATER MODELS EXCEPT MODEL 500 ...
Страница 23: ...Page 23 of 23 MODEL 500 HEATER ONLY 220 VAC FEED ...
Страница 27: ...Page 27 of 27 K5 Burner w Air Pump 1 of 2 Burner Drawing ...
Страница 28: ...Page 28 of 28 K5 Burner w Air Pump 2 of 2 Burner Drawing ...
Страница 29: ...Page 29 of 29 B5 Burner Drawing ...
Страница 30: ...Page 30 of 30 B5 Burner Drawing ...
Страница 33: ...Page 33 of 33 120 VOLT MODEL B5 TWO STAGE w AIR DELAY BURNER WIRING ...
Страница 34: ...Page 34 of 34 HAS EXTRA AIR SOLENOID AND TIMERS 120 VOLT MODEL B5 TWO STAGE w AIR DELAY BURNER WIRING ...
Страница 55: ...Page 55 of 55 BLUE CABINET MODEL 235 ...
Страница 63: ...Page 63 of 63 BURNERS ...
Страница 65: ...Page 65 of 65 BURNERS CONTINUED ...
Страница 67: ...Page 67 of 67 BURNERS CONTINUED ...