Honeywell TB7600 User Manual

TB7600 Series Communicating

TB7600 Series

Thermostat

TB7600 Series

Thermostat with

Occupancy Sensor

RTU/Heat Pump Thermostats

FOR COMMERCIAL HVAC APPLICATIONS

INSTALLATION INSTRUCTIONS

APPLICATION

The TB7600 Series PI thermostat family is specifically designed for single stage and multi-stage control of heating/ cooling equipment such as rooftop and self-contained units. The TB7600 Series are communicating thermostats with models available in BACnet® MS/TP and ZigBee® wireless mesh protocols and can be easily integrated into a WEBs-AX building automation system based on the NiagaraAX® platform. The product features an intuitive, menu-driven, back-lit LCD display, which walks users through the programming steps, making the process extremely simple. Accurate temperature control is achieved due to the product’s PI time proportional control algorithm, which virtually eliminates temperature offset associated with traditional, differential-based thermostats.

Depending on the model, up to three remote sensor inputs are available. All models contain a SPST auxiliary switch,

economizer function and a discharge air sensor input. For more advanced applications, an economizer control logic has been integrated onto the thermostat for use with proportional damper economizer actuators.

Thermostats equipped with an occupancy sensor cover provide advanced active occupancy logic, which will automatically switch occupancy levels from Occupied to Unoccupied as required by local activity being present or not. This advanced occupancy functionality provides advantageous energy savings during occupied hours without sacrificing occupant comfort. All thermostats are PIR ready and can be ordered with or without Honeywell occupancy sensor. The occupancy sensor cover is available to order separately if a PIR is needed at a later time.

which can be used to control lighting or disable the

FEATURES

• Available in BACnet MS/TP and ZigBee wireless protocols

• Backlit LCD display with dedicated function menu keys for simple operation

• Built in default profile set-up for easier start up and commissioning

• Fully integrated advanced occupancy functionality with a PIR accessory cover on some models

• Non-volatile EEPROM memory prevents loss of parameters during power outage

• Programmable smart fan operation can provide energy savings during night mode

• Password protection to minimize parameter tampering

• Three levels of keypad lockout to limit access to change user parameters such as setpoints, system mode, etc.

• Gas/oil or electric system compatibility for all type of applications

• SPST auxiliary output can be used for lighting and/or economizer override

• 0 to 10 Vdc economizer output for more retrofit opportunities

— Built in dry bulb economizer logic using outdoor temperature sensor — Input for supply/mixed air temperature sensor

• Support single and two stages heat pump with one auxiliary heat stage

• Remote indoor averaging sensing with 2, 3, 4, 9 or 16 sensors

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TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

• Remote discharge air sensor input

• Automatic frost protection to prevents costly freeze damage

• Anti short cycle and minimum on/off run time protection to reduce wear and maximizes life span of mechanical equipment

• Two programmable digital inputs for added flexibility can be use to monitor filter status, activate a remote temporary occupancy switch, and/or used as a general purpose service indicator

• 7 day programmable models, 2 or 4 events for use in non-networked applications*

• Six hour reserve prevents the need to reprogram day/time on programmable models after a power outage

Heat Pump Model Specific Features

• Selectable single or dual stage compressor stages

• High balance point locks out auxiliary heating when outside air temperature is above set value, low balance point locks out heat pump compressor operation when outside air temperature is below the set value

• Comfort/economy mode maximizes heat pump use before turning on auxiliary heating

• Compressor/auxiliary interlock adds flexibility by locking out heat pump operation during auxiliary heating to prevent high pressure trip when the coil is downstream of the auxiliary heat source

* Use programmable models only when installing as standalone thermostats that may eventually be added to a WEBs-

AX network. When a programmable thermostat is added to a network, schedules should be applied through the WEBStation-AX.

TB7600 Series Model Selection

Occupancy

Product Number Description Outputs Scheduling

BACnet Models

TB7600A5014B Single Stage RTU 1H/1C No

TB7600A5514B Single Stage RTU 1H/1C No X

TB7600B5014B Multi-stage RTU 2H/2C No

TB7600B5514B Multi-stage RTU 2H/2C No X

TB7600H5014B Heat Pump 3H/2C No

TB7600H5514B Heat Pump 3H/2C No X

TB7605B5014B Economizer RTU 2H/2C No

TB7605B5514B Economizer RTU 2H/2C No X

TB7652A5014B Single Stage RTU 1H/1C Yes

TB7652A5514B Single Stage RTU 1H/1C Yes X

TB7652B5014B Multi-stage RTU 2H/2C Yes

TB7652B5514B Multi-stage RTU 2H/2C Yes X

TB7652H5014B Heat Pump 3H/2C Yes

TB7652H5514B Heat Pump 3H/2C Yes X

TB7656B5014B Economizer RTU 2H/2C Yes

TB7656B5514B Economizer RTU 2H/2C Yes X

Wireless Models

TB7600A5014W Single Stage RTU 1H/1C No

TB7600A5514W Single Stage RTU 1H/1C No X

TB7600B5014W Multi-stage RTU 2H/2C No

TB7600B5514W Multi-stage RTU 2H/2C No X

TB7600H5014W Heat Pump 3H/2C No

TB7600H5514W Heat Pump 3H/2C No X

TB7605B5014W Economizer RTU 2H/2C No

TB7605B5514W Economizer RTU 2H/2C No X

TB7652A5014W Single Stage RTU 1H/1C Yes

TB7652A5514W Single Stage RTU 1H/1C Yes X

TB7652B5014W Multi-stage RTU 2H/2C Yes

TB7652B5514W Multi-stage RTU 2H/2C Yes X

TB7652H5014W Heat Pump 3H/2C Yes

TB7652H5514W Heat Pump 3H/2C Yes X

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Sensor

TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

CAUTION

Fig. 1. On/Off mechanical control vs.

PI electronic control.

Product Number Description Outputs Scheduling

Sensor

Occupancy

TB7656B5014W Economizer RTU 2H/2C Yes

TB7656B5514W Economizer RTU 2H/2C Yes X

Accessories

TB-CHGOVR-1014 Changeover Sensor 10K NTC Type 2

TB-DUCT-1014 Duct Sensor 10K NTC Type 2

TB-MA-1014 Mixed Air Sensor 10K NTC Type 2

TB-ODA-1014 Outdoor Air Sensor 10K NTC Type 2

TB-PIR-RTU RTU Occupancy Sensor Cover

TB-RA-1014 Wireless Remote Antenna Base

TB-RP5000W Wireless Repeater for TB7XXX Series Wireless

Thermostats

TB-VWG-APP-1014 TB7XXX Series Wireless Communication Card

TB-WALL-1014 Room Sensor 10K NTC Type 2

TB-WALLOVR-1014 Room Sensor with Override 10K NTC Type 2

1 Use programmable models only when installing as standalone thermostats that may eventually be added to a WEBs-

AX network. When a programmable thermostat is added to a network, schedules should be applied through the WEBStation-AX.

2 Thermostats ordered without an occupancy sensor cover can be retrofitted with an occupancy sensor cover later if

needed.

More Information

We recommend downloading the appropriate integration reference document (wireless or BACnet) and if installing thermostats with occupancy sensor covers, then also downloading the PIR Application Guide before you begin installation. All documentation is available on http://customer.honeywell.com. — BACnet Integration Manual for TB7600 Series Thermostats (Form No. 63-4523) — Wireless Installation & Integration Reference Guide for TB7200, TB7300, and TB7600 Thermostats

(Form No. 63-4522)

— PIR Application Guide for TB7600 Series Thermostats (Form No. 63-4525)

Theory of Operation

The TB7600 uses a proprietary adaptive logic algorithm to control the space temperature. This algorithm controls the heating/air conditioning system to minimize overshoot while still providing comfort. It provides exceptional accuracy due to its unique PI time proportioning control algorithm, which virtually eliminates temperature offset associated with traditional, differential-based on/off thermostats.

INSTALLATION AND WIRING

ON/OFF THERMOSTATS WASTE ENERGY

TEMPERATURE

PI ELECTRONIC CONTROLS DO NOT WASTE ENERGY

SETPOINT (COMFORT TEMPERATURE)

TIME

M16927

Mounting Locations

• Do not install on an outside wall.

• Must be installed away from any heat source.

• Should not be installed near an air discharge grill.

• Should not be mounted in direct sun radiation.

• Nothing must restrain vertical air circulation to the thermostat.

• Wall surface must be flat and clean.

IMPORTANT

• If replacing an old thermostat, label the wires before removal of the old thermostat.

• Electronic controls are static sensitive devices. Discharge yourself properly before manipulation and installing the thermostat.

• Short circuit or wrong wiring may permanently damage the thermostat or the equipment.

• Anti-short cycling can be set to 0 minutes for equipment that has an anti-cycling timer. Do not set to 0 unless the equipment has an internal anti-cycling timer or damage to equipment can occur.

• All TB7600 Series thermostats are to be used only as operating controls. Whenever a control failure could lead to personal injury and/or loss of property, it becomes the responsibility of the user to add safety devices and/or alarm system to protect against such catastrophic failures.

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TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

Fig. 2. Remove cover of thermostat

Fig. 3. Location of PCB retaining tabs and

mounting screws

Fig. 4. Terminal blocks

Thermostat Installation

1. Open up by pulling on the bottom side of thermostat.

(Fig. 2)

2. Remove wiring terminals.

3. Open the thermostat PCB to the left by pressing the PCB

retaining tabs. (Fig. 3).

4. Pull cables 6 inches out of the wall.

5. Thread cable through the central hole of the base.

6. Align the base and mark the location of the two mounting

holes on the wall. Install proper side of base up.

7. Install anchors in the wall.

8. Insert screws through the mounting holes on each side of

the base and mount base on wall. (Fig. 3).

9. Gently swing back the circuit board back to the base and push on it until the tabs lock it in place.

°C

°F

M21300

PCB RETAINING TABS

M21301

10. Strip each wire 1/4 inch.

11. Wire the terminals. See Table 1 for terminal descriptions and

wiring diagram.

12. Gently push back excess cable into hole.

13. Install wiring terminals in correct location (Fig. 4).

TOP LEFT 5 POLE CONNECTOR

BOTTOM 8 POLE CONNECTOR

14. Reinstall the cover (top first).

15. Install security screw on the bottom, center of the thermostat

cover.

Wiring Identification and Screw Terminal Arrangement

Table 1. Terminal identification

Multistage 1H/1C

Model Number

TB7656B TB7605B TB7652B TB7600B TB7652A TB7600A TB7652H TB7600H

Model Number

Programmable Yes No Yes No Yes No Programmable Yes No

Top left terminal block

Y2 X X X X Y2 X X Y1 XXXXXXY1 XX G XXXXXXG XX

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Heat Pump

TOP RIGHT 3 POLE CONNECTOR

M21302

TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

Model Number

Multistage 1H/1C

TB7656B TB7605B TB7652B TB7600B TB7652A TB7600A TB7652H TB7600H

Model Number

Heat Pump

Programmable Yes No Yes No Yes No Programmable Yes No

RC XXXXXXRC XX C XXXXXXC XX

Top right terminal block

RH XXXXXXRH XX W1 XXXXXXW1 XX W2 X X X X O/B X X

Bottom terminal block

Econo X X Aux XXXXXXAux XX DI1 XXXXXXDI1 XX DI2 XXXXXXDI2 XX RS XXXXXXRS XX Scom XXXXXXScom XX OS XXXXXXOS XX MS XXXXXXMS XX

5 POLE LEFT TOP CONNECTOR

8 POLE BOTOM CONNECTOR

D1 D2

3 POLE LEFT TOP CONNECTOR

Scom

RH W1

W2 O/B

M16928

Fig. 5. Screw terminal arrangement

NOTES:

— If auxiliary output is used to toggle occupancy of the electronic control card inside the equipment, configure

the relay parameter (Aux cont) to the N.O. setting. A second relay can be added for additional functionality of the occupancy output.

— If the same power source is used for the heating stages, install jumper across RC and RH. Maximum current

is 2.0 amps.

— Economizer output uses a half bridge rectifier. Reference of the control signal is the common of the power

supply of the thermostat (terminal C).

— Electromechanical contacts are to be used with the digital inputs. Electronic triacs cannot be used as mean of

switching for the input. The switched leg to the input for the input to activate is terminal C (common).

— The transformer of the unit provides power to the thermostat and the additional loads that will be wired to the

thermostat.

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TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

Detailed Wiring Diagrams for Selected Models

DI1

DIGITAL INPUT #1

DIGITAL INPUT #2

DI2

Scom

COOL

STAGE 2

THERMOSTAT INTERNAL WIRING

SYSTEM WIRING

COMPRESSOR

STAGE 2

THERMOSTAT INTERNAL WIRING

SYSTEM WIRING

COOL

STAGE 1

COMPRESSOR

FAN

STAGE 1

24 VAC

JUMPER J1

HEAT

STAGE 1

HEAT

STAGE 2

0-10 VDC

ECONOMIZER

ACTUATOR

24V

COM

FIELD CONTACTS

AUXILIARY

OUTPUT

REMOTE

ROOM

SENSOR

Fig. 6. TB7656B5x00(x) 2 Heat/2 Cool/Economizer/Programmable

DIGITAL INPUT #1

DIGITAL INPUT #2

JUMPER J1

AUXILIARY

HEAT

REVERSING

O/B

VALV E

AUXILIARY

FIELD CONTACTS

OUTPUT

DI1

DI2

REMOTE

ROOM

SENSOR

FAN

24 VAC

Scom

REMOTE

OUTDOOR

SENSOR

REMOTE

OUTDOOR

SENSOR

REMOTE

MIXED AIR

SENSOR

M16929

REMOTE

MIXED AIR

SENSOR

M16930

Fig. 7. TB7652H5x00(x) Heat pump/Programmable

Sensor Wiring for all Thermostat Models

Remote mount outdoor temperature sensors must be10 Kohm NTC @ 77 F.

Remote sensors can be used for:

• Various averaging combinations (3 thermistors with 2 dip switches are provided with each sensor)

• Optional occupancy led

• Optional override key

Table 2. Temperature vs. Resistance for 10 Kohm NTC thermistor (R

= 10KW±3%, B

25°C

ºF ºC Kohm ºF ºC Kohm ºF ºC Kohm ºF ºC Kohm ºF ºC Kohm

-40 -40 324.3197 -4 -20 94.5149 32 0 32.1910 68 20 12.4601 104 40 5.3467

-31 -35 234.4009 5 -15 71.2430 41 5 25.1119 77 25 10.0000 113 45 4.3881

-22 -30 171.3474 14 -10 54.1988 50 10 19.7390 86 30 8.0694 122 50 3.6202

-13 -25 126.6109 23 -5 41.5956 59 15 15.6286 95 35 6.5499 131 55 3.0016

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= 3975K±1.5%)

25/85°C

TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

REMOTE WIRING 1 SENSOR

TB7600 SERIES THERMOSTAT

Scom

DIP SWITCHES S2-1 = ON S2-2 = ON

EITHER D1 OR D2 CAN BE USED ON THE TB7600 FOR CONNECTION FROM THE DI ON THE WALL MODULE WITH OVERRIDE.

TB-WALLOVR-1014 TB-WALL-1014

Scom

AUX

DIP SWITCHES

S1 = ON S2 = ON

TB7600 SERIES THERMOSTAT

Scom

DIP SWITCHES S2-1 = ON S2-2 = ON

DIP SWITCHES S1 = ON S2 = ON

Scom

Fig. 8. Wiring example of single remote wall mounted room sensor

REMOTE WIRING 2 SENSORS

TB7600 SERIES THERMOSTAT

Scom

DIP SWITCHES S2-1 = OFF S2-2 = ON

TB-WALLOVR-1014 TB-WALL-1014

DIP SWITCHES S1 = OFF S2 = ON

TB-WAL-1014 AND TB-WALLOVR-1014 CAN BE MIXED AND MATCHED

TB-WAL-1014 AND TB-WALLOVR-1014 ARE TO BE WIRED IN PARALLELL ENSURE THE DIP SWITCH SETTING IS CORRECT IN EACH REMOTE SENSOR

EITHER D1 OR D2 CAN BE USED ON THE TB7600 FOR CONNECTION FROM THE DI ON THE WALL MODULE WITH OVERRIDE.

Scom

AUX

TB-WALL-1014

DIP SWITCHES S1 = OFF S2 = ON

Scom

TB7600 SERIES THERMOSTAT

Scom

DIP SWITCHES S2-1 = OFF S2-2 = ON

TB-WALLOVR-1014

Scom

AUX

DIP SWITCHES S1 = OFF S2 = ON

TB-WALLOVR-1014

Scom

AUX

DIP SWITCHES S1 = OFF S2 = ON

TB7600 SERIES THERMOSTAT

Scom

DIP SWITCHES S2-1 = OFF S2-2 = ON

Fig. 9. Wiring examples of two remote wall mounted room sensors for averaging applications

REMOTE WIRING 3 SENSORS

TB7600 SERIES THERMOSTAT

Scom

DIP SWITCHES S2-1 = OFF S2-2 = OFF

EITHER D1 OR D2 CAN BE USED ON THE TB7600 FOR CONNECTION FROM THE DI ON THE WALL MODULE WITH OVERRIDE.

TB-WALLOVR-1014

Scom

AUX

DIP SWITCHES S1 = OFF S2 = OFF

TB-WALL-1014

Scom

DIP SWITCHES S1 = OFF S2 = OFF

TB-WALL-1014

Scom

DIP SWITCHES S2-1 = OFF S2-2 = OFF

TB7600 SERIES THERMOSTAT

Scom

TB-WALLOVR-1014

Scom

AUX

TB-WALLOVR-1014

DIP SWITCHES S1 = OFF S2 = OFF

Scom

AUX

Fig. 10. Wiring examples of three remote wall mounted room sensors for averaging applications

TB-MA-1014 MIXED AIR TEMPERATURE SENSOR WITH JUNCTION BOX.

This sensor can be used for:

• Remote return air temperature sensing with the sensor mounted on the return air duct.

• Outside air temperature sensing with the sensor installed in the fresh air plenum.

• Supply air temperature sensor

TB-ODA-1014 OUTDOOR AIR TEMPERATURE SENSOR

This sensor can be used for:

• Outside air temperature sensing with the sensor installed directly exposed to the elements.

• Sensor uses a water resistant NEMA 4 ABS enclosure for outdoor applications

REMOTE WIRING 1 SENSOR REMOTE WIRING 4 SENSORS

10 K SENSOR

Scom

DIP SWITCHES S1 = OFF S2 = ON

M16997

TB-WALL-1014

DIP SWITCHES S1 = OFF S2 = OFF

M16996

TB-WALL-1014

DIP SWITCHES S1 = OFF S2 = ON

Scom

M16998

10 K SENSOR

Scom

ScomRSScomMSScom

OR OR

ScomRSScomMSScom

OR OR

Fig. 11. Wiring for TB-MA-1014 and TB-ODA-1014 Sensors

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M16999

TB7600 SERIES COMMUNICATING RTU/HEAT PUMP THERMOSTATS

Fig. 12. Heat pump, multistage

and single stage models buttons

and display

THERMOSTAT USER INTERFACE

The thermostat features a two-line, eight-character display. There is a low-level backlit level that is always active and can only be seen at night. To turn on the back light to high level, press any key on the front panel. The back lit display will return to low level when the thermostat is left unattended for 45 seconds.

When left unattended, the thermostat has an auto scrolling display that shows the actual status of the system. Use the MenuScro in the configuration menu to lockout the scrolling display and to only present the room temperature and conditional outdoor temperature to the user. With this option enabled, no local status is given on the system mode or occupancy.

Each item is scrolled one by one with the back lighting in low level mode. Pressing any key will cause the back light to come on to high level. When left unattended for 10 seconds after changes are made, the display will resume automatic status display scrolling.

Table 3. Sequence and possible display options

Room Temp

RoomTemp x.x °C or°F

YES NO MENU

Manual scroll of each menu item is achieved by pressing the Yes (scroll) key repetitively. The last item viewed will be shown on the display for 30 seconds before returning to automatic scrolling. Temperature is automatically updated when scrolling is held.

Outdoor air temperature display is only enabled when outdoor air temperature sensor is connected.

• A maximum range status display of 122 F (50 C) indicates a shorted sensor. Associated functions, such as mode lockouts and economizer function are automatically disabled.

• A minimum range status -40 F (-40 C) is not displayed and indicates a opened sensor or a sensor not connected. Associated functions, such as mode lockouts and economizer function are automatically disabled.

If alarms are detected, they will automatically be displayed at the end of the status display scroll. During an alarm message display, the back lit screen will light up at the same time as the message and shut off during the rest of the status display. Two alarms maximum can appear at any given time. The priority for the alarms is as follows:

• Frost ON: Indicates that the heating is energized by the low limit frost protection room temperature setpoint 42 F (5.6 C)

• SetClock: Indicates that the clock needs to be reset. There has been a power failure which has lasted longer than 6 hours

• Service: Indicates that there is a service alarm as per one of the programmable digital input (DI1 or DI2)

• Filter: Indicates that the filters are dirty as per one of the programmable digital input (DI1 or DI2)

• Fan lock: Indicates that the heating and cooling action are locked out due to a defective fan operation

Three status LEDs on the thermostat cover are used to indicate the status of the fan, a call for heat, or a call for cooling. See Table 4 for more details.

LED

operation

Fan LED on When G Fan terminal operates When G Fan terminal operates When G Fan terminal operates

Heating LED on

Cooling LED on

Heat pump models

When Y1 and/or W1 terminal(s) operate in heating mode

When Y1 terminal operate in cooling mode

M16916

*Network value only

TB76xxH

Table 4. LED Status

Multistage and single stage models

TB7600A, TB7652A, TB7600B and

When W1 terminal operate in heating mode

When Y1 terminal operate in cooling mode

for the auto-scroll display

Clock status

Monday

12.00 AM

Sys mode auto

Sys mode off

Sys mode heat

Sys mode cool

Sys mode emergenc

TB7652B

System

mode

Schedule

status

Occupied Outdoor

Occupied hold

Unoccup SetClock

Unoccup hold

Override Fan lock

Outdoor

x.x °C or°F

Multistage economizer models

TB7605B and TB7656B

When W1 terminal operate in heating mode

When Y1 terminal operate in cooling mode and or economizer output is in function

Tem p*

Alarms

Service

Frost ON

Filter

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+ 16 hidden pages

Honeywell TB7600 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

APPLICATION

FEATURES

TB7600 Series Model Selection

Theory of Operation

INSTALLATION AND WIRING

Mounting Locations

Thermostat Installation

Sensor Wiring for all Thermostat Models

THERMOSTAT USER INTERFACE