Carrier T-326 manual Thermostat Control

Move the ON/OFF switch to the ON position. A green light will illuminate indicating that the controller has power. At the same time the evaporator fans will operate in either Low, Medium or High speed, depending on the Fan Speed switch location.

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2

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1Face Plate

2Green Light

3Rocker Switch, 2 Position, ON/OFF

4Rocker Switch, 3 Position, LOW--MED--HIGH

5Thermostat Control (Potentiometer)

Figure 2-2 Switch Assembly (TEMPCON) 2.3.2 Fan Speed Switch -- 3 Speed

The evaporator fan speeds can be adjusted by pushing the rocker switch to the desired position:

a.H = High Speed

b.M = Medium Speed

c.L = Low Speed

When the evaporator fan speed switch is positioned at the desired speed, a signal is sent to the corresponding fan speed relay located on the electrical circuit board.

2.3.3 Thermostat Control

The thermostat control potentiometer has an operating range of 60 to 85 degrees F.

Rotate the potentiometer switch knob to the right (clockwise) for maximum cooling. Rotate the potentiometer switch knob to the left (counterclockwise) for less cooling.

11T--326