Owner manual

Operation 4-27

4. In the Heater Control Window (Figure 4-14), locate the loops (channels) for the heater and

cooler to be activated.

Item Description Item Description

1 Heater-Cooler Loop Set - ON 4 Temperature Set Point Column

2 Loop - OFF 5 Present Temperature Value Column

3 Channel (Loop) Name Column 6 Message Column

Figure 4-14 Activating the Thermal Control Assembly

5. Activate the TCA by double clicking the icons for the matching heater and cooler loops in the

On/Off column until the icons

turn yellow and red.

 NOTE If strict temperature control is not needed, you can activate the heater on the

TCA without activating the cooler. However, the heater must be activated in

order for the cooler to operate.

The thermal control assembly is operating properly if the following are observed:

• The Present Value (PV) column indicates the heater is heating up to, and stabilizing

at, the set point (SP).

• The Message column displays the message “OK.”

• The cooler air will come on to maintain the SP temperature (if activated).

6. If the heater is operating properly, click on

Exit to close the Heater Control Window. If it is

not operating properly, verify all connections and cooler air pressure. Call a service

technician if necessary.