thermostat User's Manual

ManualsBrandsHoneywell ManualsThermostatZONEPRO TB6980

TB6980/TB7980 62-0238 400-150-005-B 3/23/06 1/6

1. Introduction

The TB6980/TB7980 digital thermostats provide proportional plus

integral individual space temperature control in zoned commercial

HVAC systems such as hydronic and pressure dependent VAV with

or without reheat. There are four different models:

Depending on the model, the thermostat can have up to three out-

puts that can be used for the following applications:

 Floating or Modulating damper/valve actuator control

 Damper/valve actuator control with duct reheat and auxiliary

heat (B models only)

 Hydronic systems (room control, perimeter heating and cool-

ing)

Accessories

 R841 family of electromechanical relays

 T7770A3002 remote room sensor

 50014156-002 remote room sensor

 32004800-001 bare thermistor

 50014157-001 duct temperature sensor

2. Installation

2.1 Mounting Instructions

n Remove the thermostat from its base by unscrewing the cap-

tive screw and tilting the bottom of the thermostat up. The

screw cannot be completely removed.

o Pass the wires through the center hole of the base and secure

the base to the wall or onto an electrical box.

p Wire the thermostat. See section 2.2 for terminal designations

and section 3 for typical wiring diagrams.

q Reinstall the thermostat onto its base and secure with the cap-

tive screw.

2.2 Terminal Designations

The designations of the terminals vary according to the particular

model of thermostat. Refer to the following table for the description

of each terminal.

• TB7980A (single output, modulating) • TB6980A (single output, floating)

• TB7980B (multiple output modulating) • TB6980B (multiple output, floating)

Configuration and status display

Heating mode

Temperature display

Output power display

Temperature

adjustment

button

Cooling mode

Override button

TERMINAL DESCRIPTION

24 VAC

COM

Power supply

AN1

COM

Output 1

TB7980 models

OPEN

CLOSED

TB6980 models

T2/AN2

T2/COM

Output 2 (TB6980B and TB7980B models)

Output 3 (TB6980B and TB7980B models)

COM

SENSOR

External sensor input. (For applications requiring

an external sensor, see section 4.2.)

COM

C-Over

Mode Changeover input (N.O. contact). See sec-

tion 5.4.2.

COM

NSB

Night Setback activation input (N.O. contact).

See section 5.5.

Note: To configure the terminals, see section 4.

TB6980/TB7980

Installation and User Guide

ZonePRO Thermostat

Summary of content (6 pages)

PAGE 1
TB6980/TB7980 Installation and User Guide ZonePRO Thermostat 1. Introduction The TB6980/TB7980 digital thermostats provide proportional plus integral individual space temperature control in zoned commercial HVAC systems such as hydronic and pressure dependent VAV with or without reheat.
PAGE 2
3. Typical Applications TB6980B TB7980B FIGURE 1: Damper control with electric reheat and auxiliary baseboard heating.
PAGE 3
4. Configuration 4.1 Configuration Menus (See following pages for explanations) NOTE: Factory settings are inside the shaded cells. TB7980A model Application (section 4.2) 0 1 2 3 4 5 Internal sensor Room Return Supply Auto changeover Limited cooling Default mode & Output 1 type (section 4.3.1) 0 Cool / 0-10V 1 Heat / 0-10 V 2 Cool / 2-10 V 3 Heat / 2-10 V NSB value (section 5.
PAGE 4
.2 Application Types The following table shows the different thermostat applications and their corresponding settings in the configuration menu.
PAGE 5
4.5 Output 3 (models TB6980B and TB7980B) 4.7 DIP Switches The following table shows the output types for Output 3 and their corresponding settings in the configuration menu. Three switches at the back of the control module are used to select various options. Temperature Display (SW1) Menu setting Description Selects the desired temperature display (°C or °F). 0 Not used 1 24 VAC pulsed (triac) / 1 sec. cycle Access Mode (SW2) 2 24 VAC pulsed (triac) / 10 min. cycle / direct action (e.g., N.C.
PAGE 6
5.4.2 Changeover Input The thermostat is in the default mode when the contact between terminals 9 and 11 is open and switches mode when the contact is closed. The default mode is set via the configuration menu . Mounting: - directly to drywall - single-gang NEMA standard 2-in x 4-in electrical box - double-gang NEMA standard electrical box with mounting plate Note: The changeover contact state is ignored if the thermostat is configured in automatic changeover or in limited cooling. 7. WARRANTY 5.