Engineering Mode - TB Controls TC02 Operation & Maintenance Manual

Operations & Maintenance Manual
To change address use outer buttons to increase or decrease the address number, a
maximum of 8 can be set in one group.
The LCD Backlight is the illumination property of the display; this allows the display to be
read in poor light conditions. To alter the Back light „on period‟ use the outer buttons, the
period can be from 1 to 25 seconds „on‟ or „off‟

4.4.6. Engineering Mode

To enter engineering mode press and hold „+‟ and „-„ buttons for more than ten seconds.
The „mode‟ label will appear with stars "*mode*".
Pressing the mode button cycles through the readings and settings shown in quotes
below. Some settings are displayed or omitted according to which sensors are fitted.
Setpoints and outside temperature "OS xx C RS xx C RT xx C OT xx C". Where OS
is Off coil Setpoint, RS is Return air Setpoint, RT is Return air Temperature, OT is Outside
Temperature. This temperature display will remain until the mode button is pressed, or the
- button is pressed, in which case the Temperature and duty cycle are displayed. Pressing
the mode button from this display will return to original display.
Summer Off Coil Setpoint is displayed as "Summer OC xx C". Range 10 to 70 C.
Default 18 C
Winter Off Coil Setpoint is displayed as "Winter OC xx C". Range 10 to 70 C. Default
40 C
Summer Return Air Setpoint / Trip is displayed as "Summer Ret xx C" Range -40 to 40
C. Default 16 C. When the temperature reaches this value the heater turns off or is
setback by the „Return Air Setback‟ value. A negative value reverses the action, eg -10
would turn off or setback the heating at +10C or below. The minus is ignored for
calculations. In New Look mode (DIP 5 on) default is 18C.
Winter Return Air Setpoint / Trip is displayed as "Winter Ret xx C" Range -40 to 40 C.
Default 25 C. When the temperature reaches this value the heater turns off or is setback
by the „Return Air Setback‟ value. A negative value reverses the action, eg -10 would turn
off or setback the heating at +10C or below. The minus is ignored for calculations. In New
Look mode (DIP 5 on) default is 18C.
Summer Outside Air Setpoint is displayed as "Summer Out xx C" Range -40 to 40 C.
Default 20 C. In New Look mode (DIP 5 on) default is 10C.
Winter Outside Air Setpoint is displayed as "Winter Out xx C" Range -40 to 40 C.
Default 15 C. In New Look mode (DIP 5 on) default is 0C.
Stat Offset or Return Air setback is the temperature setting in degrees, which the
controller will use to adjust the output when it receives a signal from the Thermostat (Stat).
Or return air sensor. "Ret Setback xx C" change steps using the +/- buttons. 0 C to 30C.
0C is off.
Page 10 of 20
Doc: TC02 O&M
Final
Status: issue: 11 ©TB Controls 2011