Aube Technologies TH150 Series manual Operation

4.5 Output 3 (models TH150-1A2T and TH150-1F2T)

The following table shows the output types for Output 3 and their corresponding settings in the configuration menu.

Menu setting Description

0Not used

124 VAC pulsed (triac) / 1 sec. cycle

(e.g., 24 V SSR such as Aube relays RT850 or RT850T)

224 VAC pulsed (triac) / 10 min. cycle / direct action (e.g., N.C. thermal valve)

324 VAC pulsed (triac) / 10 min. cycle / reverse action (e.g., N.O. thermal valve)

424 VAC pulsed (triac) / 15 min. cycle (e.g., mechanical relay such as Aube relays RC840 or RC840T)

5N.O. contact (The contact closes when Output 1 reaches or exceeds set percentage. See section 4.1.)

When any setting between 1 and 4 is selected, Output 3 controls heating only, regardless of the thermostat’s mode.

When setting 5 is selected, Output 3 controls heating or cooling depending on whether the default mode has been set to heat or cool respectively (see section 4.3.1). For example, if the default mode has been set to heat mode, the contact remains opened when the thermostat is in cool mode. When the thermostat is in heat mode, the contact closes when Output 1 reaches a percentage of its capacity, set via the configuration menu.

4.6 Minimum and Maximum Setpoints

The minimum and maximum setpoints are factory-set at 10°C (50°F) and 35°C (95°F). The maximum setpoint can be set between 35°C (95°F) and (minimum setpoint + 1). The minimum setpoint can be set between 10°C (50°F) and (maximum setpoint - 1).

4.7 DIP Switches

Three switches at the back of the control module are used to select various options.

Temperature Display (SW1)

Selects the desired temperature display (°C or °F).

Access Mode (SW2)

Selects the operation mode (NORM) or the configuration mode (MENU).

•Place the switch to MENU to access the configuration menu.

•Place the switch to NORM for normal display.

Output 2 Type (SW6)

Sets Output 2 type (Analog or Triac).

WARNING: Place the switch according to the type of device (Ana- log or Triac) connected to Output 2. Failure to do so can result in thermostat damage.

5. Operation

5.1 Power-Up

Upon power-up, the thermostat undergoes a series of test before displaying the actual temperature.

Note: On the TH150-1F and TH150-1F2T models, at power-up, the message OPEN appears at the top of the screen during the calibra- tion of the damper opening. This can last up to 3 minutes.

5.2 Backlight

To turn the backlight on, press any button. The display will illuminate for 12 seconds.

5.3 Temperature Display and Setting

The thermostat usually displays the actual temperature. To view the

setpoint, press once on one of the buttons. The setpoint appears for 5 seconds and is indicated by the display. During the setpoint display, press one of the buttons to change it.

Note: The temperature setpoint is automatically increased or decreased by 1°C (2°F) when the controller switches to heating mode or to cooling mode respectively. For example, if the setpoint is at 25°C (77°F) in heating mode, it will become 26°C (79°F) in cool- ing mode and will return to 25°C (77°F) when the controller is back in heating mode.

5.4 Output Display

The bar graph represents the voltage for an analog out- put or the duty cycle for a triac output. The bar graph usually shows Output 1 power (% of damper opening).

To view Output 2 or 3, press Override for 2 seconds to enter the diagnostic mode. Press Override momentarily to switch between the three output graphs. To exit the diagnostic mode, press Override for 2 seconds or wait for 1 minute for the mode to exit automatically.

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