Servicing the thermostat system on-time adjustment – Honeywell CT1801 User Manual
Page 22

22
69-0395—2
Servicing The Thermostat
System On-Time Adjustment
If the thermostat seems to cycle the heating
system too fast or too slow, adjust the heating
system on-time by moving the anticipator
setting lever one indicator mark at a time (Fig. 6).
A higher setting will increase heating system on-
time length; a lower setting will decrease heating
system on-time length. Observe the heating
system operation after each adjustment.
The heat anticipator must be correctly set. An
incorrect setting can result in room temperature
swings or burn out the anticipator, which would
void the thermostat warranty.
IMPORTANT:
Most hot water systems require a
setting of 1.3 times the valve current rating.
ANTICIPATOR
SETTING LEVER
ANTICIPATOR
SCALEPLATE
M9616
Fig. 6—Heat anticipator setting.
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