Operating instructions

1104UESAGBEN, page 19/31

Figure 13

LC1

Figure 14

LC3

Figure 15

Positioning LC1/LC3

8.3.3 Fan motor overload protection

The fan motor is equipped with an internal thermal overload protection of the auto-

matic reset type. In case the motor should fail to run it may be because of improper

voltage characteristics. Make certain that the correct voltage is available at the motor.

If a limit control needs

replacing, use only the

factory authorized re-

placement part for the

size of heater.

For limit locations, see

ﬁ gure 16a.

8.3.2 Limit controls

WARNING

Never bypass the limit

controls, hazardous

conditions could result.

All units are equipped with temperature activated limit controls. The controls are fac-

tory set and non-adjustable. If either setpoint is reached, the corresponding limit con-

trol will interrupt the electric power to the gas valve. These safety devices provide

protection in the case of motor failure or lack of airﬂ ow due to restrictions. (For loca-

tions, see ﬁ gure 17.)

LC1

LC3