Thermo Products 30, OPB (24 Thermostat Anticipator Setting, Heat Anticipator Adjustment Scale

All installations and services must be performed by qualified service personnel.

2. Thermostat Anticipator Setting

Proper control of the indoor air temperature can only be achieved if the thermostat is calibrated to the heating and/or cooling cycle. Calibration will help to produce a more constant indoor temperature by adjusting the length of the heating/cooling cycle to fit the application. A vital consideration of this calibration is related to the thermostat heat anticipator.

The proper thermostat heat anticipator setting is 0.1 ampere. To increase the length of the cycle, increase the setting of the heat scale; to decrease the length of the cycle, decrease the setting of the heat scale.

Anticipators for the cooling operation are generally pre-set by the thermostat manufacturer and require no adjustment.

Anticipators for the heating operation are of two types, pre-set and adjustable. Those that are pre-set will not have an adjustment scale and are generally marked accordingly.

Thermostat models having a scale as shown in Figure 5 must be adjusted to each application.

Figure 5: Heat Anticipator Adjustment Scale

In many cases, this setting can be found in the thermostat installation instructions. If this information is not available, or if the correct setting is questioned, the following procedures should be followed:

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