T26S-18C Johnson Controls Thermostat

Datasheet

The Johnson Controls T26S-18C LINE VOLTAGE Thermostat; Thermostat; HTG/CLG; SPDT LINE VOLT;HORZ OR VERT UNIV. (SEE: EMSU-90-06)

The T26 standard model thermostats provide SPDT control for heating, cooling, or heating and cooling applications. The T26 has a thermoplastic cover with an Allen-head locking screw to discourage unauthorized tampering. The thermostat consists of a liquid filled sensing element, which has excellent sensitivity to surrounding air temperature changes. Coupled with a highly efficient diaphragm and lever mechanism, the element operates an enclosed narrow differential Pennswitch. An adjusting knob and easy-to-read dial allow quick selection of the desired setpoint. The thermostat is supplied with the faceplate installed for vertical mounting and knob adjustment. However, a horizontal faceplate is enclosed for horizontal mounting and knob adjustment if desired.

Operating Differential

The operating temperature differential of any selfcontained thermostat depends on the following:

• the velocity of air over the thermostat
• the rate of temperature change to which the thermostat is subjected
• the current flowing through the thermostat (amperage load)
• whether the thermost