Bedienungsanleitung Honeywell TB7980 (Seite 4 von 6) (Englisch)

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4.2 Application Types

The following table shows the different thermostat applications and

their corresponding settings in the configuration menu.

4.3 Output 1

Output 1 is used to control a damper. It controls heating when the

thermostat is in heat mode or cooling when the thermostat is in cool

mode.

Set the following configuration parameters:

• Default mode

• Output type (TB7980 models only)

• Minimum opening

• Opening time (TB6980 models only)

4.3.1 Default Mode / Output Type

The default mode (heat/cool) is used for the following:

• The default mode is the thermostat’s mode at power-up.

• The default mode is the active mode when the N.O. changeover

contact is open (see section 5.4.2).

• When configured as a contact (see section 4.5), Output 3 controls

either heating or cooling depending on whether the default mode

is set to heat or cool respectively.

The following table shows the different default modes, the different

output types for Output 1, and their corresponding settings in the

configuration menu.

4.3.2 Minimum Opening

The minimum damper opening can be set between 0 and 50 %.

Note: It is not recommended to set the minimum damper opening to

0 % (fully closed) when a duct heater is connected to Output 2 or 3.

4.3.3 Opening time (TB6980 models only)

The damper opening time can be set between 80 and 160 seconds.

4.4 Output 2 (models TB6980B and TB7980B)

Output 2 controls heating only, regardless of the thermostat’s mode.

When the thermostat is in heat mode, Output 2 is activated as soon

as Output 1 reaches its full capacity. When the thermostat is in cool

mode, Output 2 is activated when the measured temperature drops

below the setpoint.

The following table shows the output types for Output 2 and their

corresponding settings in the configuration menu.

Note: If 0-4 is selected, set the SW6 switch to Triac. If 5-8 is

selected, set the switch to Analog (see section 4.7)

Menu setting Description

Internal

sensor

To control the ambient temperature using the internal

(built-in) sensor

1Room

To control the ambient temperature using the

50014156-002 temperature sensor (the internal sensor

is not used)

2 Air return

To control the temperature at the air return using the

50014157-001 temperature sensor (the internal sensor

is not used)

3 Air supply

To control the temperature at the fresh air supply using

the 50014157-001 temperature sensor (the internal

sensor is not used)

Automatic

changeover

To control the ambient temperature using the internal

sensor. The 50014157-001 temperature sensor is used

for automatic changeover. See section 5.4.1.

Limited

cooling

To use the outdoor air for cooling whenever possible.

The 50014157-001 temperature sensor is used to

measure the outdoor air temperature. The internal

temperature sensor measures the room temperature

which is then compared with the setpoint. If the room

temperature is lower than the setpoint, the air intake

damper remains closed. If the room temperature is

higher than the setpoint, the latter is then compared with

the outdoor temperature. If the fresh air temperature is

lower than the setpoint by more than 3°C (5.4°F), the

damper opens to allow cool air in.

Menu setting TB7980 models TB6980 models

Cool / 0-10 V analog

(max. of 10 min. refresh)

Cool

(24 V tri-state floating)

Heat / 0-10 V analog

(max. of 10 min. refresh)

Heat

(24 V tri-state floating)

Cool / 2-10 V analog

(max. of 10 min. refresh)

Heat / 2-10 V analog

(max. of 10 min. refresh)

Menu setting Description

0 Not used

1 24 VAC pulsed (triac) / 1 sec. cycle

24 VAC pulsed (triac) / 10 min. cycle / direct action

(e.g., N.C. thermal valve)

24 VAC pulsed (triac) / 10 min. cycle / reverse action

(e.g., N.O. thermal valve)

24 VAC pulsed (triac) / 15 min. cycle (e.g., mechanical

relay such as R841)

5 0-10 V pulsed / 1 sec. cycle

0-10 V analog / 1 sec. refresh

(e.g., SCR controlled device such as a re-heater)

7 0-10 V analog / max. of 10 min. refresh (e.g., valve)

8 2-10 V analog / max. of 10 min. refresh (e.g., damper)

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