Honeywell t7100f Installation Instructions Manual

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Page 1

T7100F Microelectronic Conventional

69-0964-2

or Heat Pump Thermostat

INSTALLATION INSTRUCTIONS

APPLICATION

The T7100F Microelectronic Thermostat provides electronic control of 24 Vac commercial single zone heating, ventilating and air conditioning (HVAC) equipment. It is designed for use with the Q7100A Subbases for conventional heat/cool applications and the Q7100C Subbases for heat pump applications. The T7100F is field configurable for automatic or manual changeover between heating and cooling. All T7100F Thermostats require a common wire to supply power.

NOTE: When Q7100C Subbases are used, Installer

Setup Option must be set to 01 (heat pump).

RECYCLING NOTICE

If this control is replacing a control that contains mercury in a sealed tube, do control in the trash.

Contact your local waste management authority for instructions on recycling and the proper disposal of the old thermostat.

not

place your old

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow

the instructions can damage the product or cause a hazardous condition.

2. Check ratings given in instructions and on product to

make sure product is suitable for your application.

3. Installer must be a trained, experienced service

technician.

4. After completing installation, use these instructions

to check out the product operation.

Mounting and Wiring Q7100 Subbase

Refer to the subbase installation instructions for mounting and wiring information.

Setting Keypad Lockout Switch

The T7100F can be configured for keypad lockout to prevent changes to the temperature or system settings. DIP switch number 1, on the back of the thermostat, activates the lockout feature. See Fig. 1. The DIP switch must be set to the ON position (up) to activate the lockout feature. The factory setting is off (down). Be sure to set the switch before mounting the thermostat on the subbase. When the DIP switch is set to the ON position it disables all of the keys on the thermostat.

DIP 1 IS ON

BACK OF THERMOSTAT

Fig. 1. Setting keypad lockout DIP switch

Mounting Thermostat

Mount the thermostat on the Q7100 Subbase after the Q7100 is installed:

1. Engage tabs at the top of the thermostat and

subbase. Fig. 2.

2. Press lower edge of the case to close and latch.

(back of thermostat).

M10108

CAUTION

Electrical Hazard. Can cause electrical shock or equipment damage.

Disconnect power supply before installation.

X-XX UL

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

ENGAGE TABS AT TOP OF THERMOSTAT AND SUBBASE.

PRESS LOWER EDGE OF CASE TO LATCH.

M6799A

Fig. 2. Mounting thermostat on subbase.

NOTE: To remove the thermostat from the wall, first pull

out at the bottom of the thermostat; then remove the top.

Using Thermostat Keys

The thermostat keys are used to:

• Set temperature,

•Display present setting,

• Configure Installer Setup,

• Check Self-Test.

Select models have keys to:

• Temporarily override the temperature,

• Set the system operation,

• Set the fan operation.

See Fig. 3 for key information.

DISPLAY PRESENT SETTINGS AND SCROLL THROUGH INSTALLER SETUP (INFORMATION KEY)

CHANGE TEMPERATURE SETTING TEMPORARILY (SELECT MODELS)

INCREASE TEMPERATURE SETTING

DECREASE TEMPERATURE SETTING

SELECT FAN OPERATION

SELECT SYSTEM OPERATION

M6800B

Fig. 3. Thermostat key locations and descriptions.

SETTINGS

System and Fan Settings

System settings control the thermostat operation as follows:

Em Heat (Q7100C only): Emergency heat relay is on

continuously. Thermostat cycles highest stage of heat. Cooling system is off. Compressor is de-

energized. Heat: Thermostat controls the heating. Off: Both the heating and cooling are off. Cool: Thermostat controls the cooling. Auto: Thermostat automatically changes between

heating and cooling operation, depending on the

indoor temperature.

Fan settings control the system fan as follows:

On: Fan operates continuously. Auto: Equipment controls fan.

The system default setting is Heat and the Fan default setting is Auto. Use the keys to change to the desired settings.

Temperature Settings

The default setpoint for heat is 70°F (21°C) and for cool is 78°F (25.5°C). Press the increase ▲ or decrease ▼ key to change the setting. To change between heat and cool settings, press the Information i key until the setting to be changed appears.

Override Temperature Settings (Select Models)

The T7100 temperature settings can be overridden in three ways: — Using the T7100 Override key, acting as a toggle. — Using a remote setback timer. — Using an occupancy sensor.

The temperature settings change based on Installer Setup 27.

NOTE: Installer Setup 27 is factory set at zero degrees

so this setting must be changed for the temperature to change.

The Override key changes the current temperature temporarily to a preset offset. The remote timer and occupancy sensor open (temporary setpoint) or close (comfort setpoint) contacts according to the settings. See Table 1.

Always check the display to determine if the thermostat is controlling the comfort, temporary or remote setpoints. Temporary is displayed when the Override key is pressed or the occupancy sensor or remote setback timer is energized.

Table 1. Temperature override.

System

Setting

Comfort Setpoint

Installer Setup

27 Setting

Heat 68°F10°F58°F

Cool 74°F10°F84°F

Temporary

Setpoint

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

INSTALLER SETUP

NOTE: For most applications, the thermostat factory

settings do not need to be changed. Review the factory settings in Table 2 and if no changes are necessary go to the Installer Self-Test section.

The Installer Setup is used to customize the thermostat to specific systems. Some of the options include temperature display, remote sensing system, changeover, minimum equipment On time and minimum Off time. Installer modes are listed in numerical order in Table 2. It includes all the configuration options and the factory-settings available for the T7100F.

IMPORTANT

The Installer Setup must be set correctly for the HVAC equipment, thermostat and subbase to operate properly.

A combination of key presses are required to use the Installer Setup feature: — To enter the Installer Setup mode, press and hold the

Information i key with the increase ▲ and decrease ▼ keys until the first mode number is displayed. All display segments appear for approximately three seconds before the first mode number is displayed. See Fig. 4 and 5.

— To advance to the next Installer Setup mode, press

the Information i key.

— To change a setting, use the increase ▲ or decrease

▼ key.

— To exit the Installer Setup mode, press and hold the

Information i key until the display returns to normal (approximately three seconds). The display scrolls the mode numbers backward to get to the normal display. The Installer Setup mode is automatically exited if no key presses are made for five minutes.

Em Ht Temporary Setting Aux Ht

Repl

Wait

Batt

System Fan

Em HeatOffCool Auto Only

Heat Cool

Fig. 4. Display of all LCD segments.

MODE NUMBER DISPLAY (COLUMN 2 OF TABLE 2)

Fig. 5. Display of Installer Setup mode and setting.

CAUTION

Equipment Damage.

Damage can result when the system runs

without the fan.

Configure heat pump and electric heat systems

correctly in Installer Setup modes 01 and 02.

NOTE: Only configurable Mode Numbers are shown.

Remote

Room

%Humid

Outdoor

OnAuto

M4844

FACTORY SETTING OR OTHER CHOICE DISPLAY (COLUMN 3 OR 5 OF TABLE 2)

M10105

Table 2. Thermostat Installer Setup Options.

Mode Number (Press i key

Select

to change)

Application. 01 00 Conventional equipment

Fan operationa.0200Conventional applica-

Output stages of heating.

03 Depends

Factory-Setting

Display Description Display Description

application (Q7100A).

tions where equipment controls fan operation in heat mode.

on subbase.

Stages of heat. 01, 02, or0301—One stage of heat.

01 Heat pump application (Q7100C,D)

01 Electric heat applications where

Other Choices

(Press ▲ or ▼ key to change)

(fan operation is automatically selected so go to mode number

03).

thermostat controls fan operation in heat mode.

02—Two stages of heat. 03—Three stages of heat.

Heating cycle 04 Depends Stage 1. 03, 04, 03—3 cph used for hot water rate. 05 on model Stage 2. 06, 08 systems or high efficiency

06 Stage 3 (Q7100C only). or 09 furnaces. 07 Emergency heat

Mode 01 must be 00 to allow a selection in this mode.

(Q7100C only).

04—4 cph (factory setting for heat

pump systems).

06—6 cph used for conventional

systems.

08—8 cph (factory setting for

conventional systems).

09—9 cph used for electric heat

systems and is the factory setting for the emergency heat stage.

(continued)

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

Table 2. Thermostat Installer Setup Options (Continued).

Select

Output stages of cooling.

Mode Number (Press i key

to change)

08 02 Two stages of cool. 00 or 01 00—No cooling.

Factory-Setting

Display Description Display Description

Cooling cycle rate. 09 04 Stage 1. 03 3 cph.

10 04 Stage 2. Not used. 11 — — — — Changeover

(T7100F only).

12 00 System setting key is

operational.

01 or 02 01—Manual changeover

Not used. 13 — — — — Degree tempera-

ture display. Displaying

temperature.

14 00 Temperature is

15 00 Temperature is

displayed in °F.

displayed.

01 Temperature is displayed in °C.

01 Temperature is not displayed.

Not used. 16 - 18 — — — — Extended fan

operation in

heating

Extended fan operation in cooling.

Fan key adjustment.

Remote sensing. 22 00 Remote sensing not

Temperature averaging

network

19 00 No extended fan

20 00 No extended fan

21 00 Fan setting key is

operation after the call for heat ends.

operation after the call for cool ends.

operational.

activated.

23 00 Temperature averaging

disabled.

01 Fan operation is extended

01 Fan setting key is continuously in

01 Remote sensing activated.

01 Temperature averaging between

Not used. 24 — — — — Keypad lockout

level.

25 0 No lockout. 01 - 02 01—View setpoint only.

Not used. 26 — — — — Heating/cooling

override.

27 00 No temperature change

when override key is pressed.

01 - 15 °F the temperature setting is

Not used. 28 - 29 — — — — Deadband. 30 02 Heating and cooling

Interstage control point (select models).

31 01

(Conventional) or 02 (Heat pump).

Minimum On time. 32 02 2-minute minimum On

Minimum Off time for the compressor.

Mode 01 or 02 must be 01 to extend fan operation.

Mode 22 must be set to 01 and remote sensor(s) must be installed.

33 04 4-minute minimum Off

setpoints can be set no closer than 2°F.

Temperature has to change 1°F or 2°F before the system calls for the next stage.

time for heating and cooling.

time for the compressor.

03 - 10 Heating and cooling setpoints can

00 - 12 Temperature has to change the

00 or 01 No minimum On time or 1 minute

00, 01, 02, 03 or 05

Other Choices

(Press ▲ or ▼ key to change)

01—One stage of cool.

02—Auto only.

90 seconds after the call for heat ends.

90 seconds after the call for cool ends.

the Auto position.

local sensor and remote sensor(s) activated.

02—Lockout all keys.

changed when the override key is pressed. Temporary is displayed.

be set no closer than the chosen value.

chosen value before the system calls for the next stage.

minimum On time for heating and cooling.

Minimum number of minutes (0 thru 5) the compressor will be off between calls for the compressor.

(continued)

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

Table 2. Thermostat Installer Setup Options (Continued).

Mode Number

(Press i key

Select

Temperature range stops in heating (T7100F only).

Temperature range stops in cooling (T7100F only).

to change)

34 90 Highest heating setpoint

35 45 Lowest cooling setpoint

Not used. 36 — — — — Temperature

display adjustment.

Minimum Off times in heating.

37 00 No difference in

38 02 2-minute minimum Off

Factory-Setting

(Press ▲ or ▼ key to change)

Display Description Display Description

allowed.

displayed temperature and actual room temperature.

time.

40 - 89 Temperature range for (1°F

46 - 99 Temperature range for (1°F

01 - 06

00, 01, 03, 04 or 05

Other Choices

increments) heating setpoint.

increments) cooling setpoint.

01—Display adjusts to 1°F higher

than actual room temperature.

02—Display adjusts to 2°F higher

than actual room temperature.

03—Display adjusts to 3°F higher

than actual room temperature.

04—Display adjusts to 1°F lower

than actual room temperature.

05—Display adjusts to 2°F lower

than actual room temperature.

06—Display adjusts to 3°F lower

than actual room temperature.

Minimum number of minutes (0 thru 5) the heating equipment is off between calls for heat.

INSTALLER SELF-TEST

Use the Installer Self-Test to check the thermostat configurations and operation. Refer to Table 3 for a list of the available Self-Tests.

NOTE: The minimum Off time for compressors is

bypassed during the Installer Self-Test.

To start the Self-Test:

Press and hold the increase ▲ and decrease ▼ keys, at the same time, until two zeros appear. All segments of the LCD are displayed for three seconds before the two zeros appear. Refer to Fig. 6 and 7.

Em Ht Temporary Setting Aux Ht

Repl

Wait

Batt

System Fan

Em HeatOffCool Auto Only

Heat Cool

Fig. 6. Display of all LCD segments.

Remote

Room

%Humid

Outdoor

OnAuto

M4844

TEST MODE NUMBER

Fig. 7. Display of Test Mode number.

Table 3. Installer Self-Test Mode Tests.

Test

Number Self-Test Description

10-19 Heating equipment can be turned on and off. 20-29 Emergency heat (Q7100C only) equipment

can be turned on and off. 30-39 Cooling equipment can be turned on and off. 40-49 Fan equipment can be turned on and off. 60-69 Keyboard keys test. 70-79 Thermostat information including date code

and software versions is displayed.

Refer to Table 4 for the directions and results of the specific tests.

NOTE: Press and hold the increase ▲ and decrease ▼

keys for three seconds to exit the Self-Test mode. Self-Test times out after five minutes without any key presses.

M6792

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

Table 4. Installer Self-Test Options.

Key to

Press

Heating Equipment Self-Test

▲ 11 Stage-one heat comes on. When Installer Setup mode number 01 is 01 or mode number 02

▲ 12 Stage-two heat comes on. Stage-one heat and system fan remain on. ▲ 13 Stage-three heat comes on (heat pump configuration). Stage-one and stage-two heat remain

▼ 12 Stage-three heat turns off. ▼ 11 Stage-two heat turns off. ▼ 10 Stage-one heat and system fan turn off.

Emergency Heating Equipment Self-Test (with select Q7100C Subbase models)

▲ 21 Emergency heat comes on. ▼ 20 Emergency heat turns off.

Cooling Equipment Self-Test

▲ 31 Stage-one cooling and system fan come on. ▲ 32 Stage-two cool comes on. Stage-one cool and system fan remain on. ▼ 31 Stage-two cool turns off. ▼ 30 Stage-one cool and system fan turn off.

Fan Equipment Self-Test

▲ 41 Fan comes on. ▼ 40 Fan turns off.

KEY TEST

▲ 60 Displays 4. ▼ 60 Displays 3.

Override 60 Displays 5. System

Fan

Available on select models.

Test

Mode

Number Description

10 Enter heating equipment Self-Test.

is 01, the system fan is also energized.

on.

20 Change from heating to emergency heating equipment Self-Test.

30 Change from heating or emergency heating to cooling equipment self-test.

40 Change from cooling to fan equipment Self-Test.

60 Displays 2.

60 Displays 0.

Displays 1.

Thermostat Information

1. Press the Information i key to access the thermo-

stat information.

M4864

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2. Press the increase ▲ key to display the production

date code. The first two large digits are the month and the third digit is the last digit of the year. (Example: 026 = February 1996)

M4865

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

3. Press the increase ▲ key again to display the

software identification code. (Example: 02 = software ID code 2)

M4866

4. Press the increase ▲ key again to display the

software revision number. (Example: 001 = revision number 1)

M6787

5. Press the increase ▲ key again to display the

EEPROM identification code. (Example: 222 = EEPROM ID 222)

6. Press and hold both the increase ▲ and the

decrease ▼ keys, until the room temperature is displayed, to exit the Self-Test. The Self-Test times out after five minutes without any key presses.

TROUBLESHOOTING GUIDE

Symptom Possible Cause Action

Display does not come on.

Temperature display is incorrect.

Temperature settings will not change. (Example: Cannot set higher or cooling lower.)

Thermostat is not powered. • Check that X terminal is connected to the system

Thermostat microprocessor is locked up.

Room temperature display has been reconfigured.

Thermostat is configured for °F or °C display (select models).

transformer.

• Check for 24 Vac between X and R or RH terminals. — If missing 24 Vac:

— Check if the circuit breaker is tripped—reset the

circuit breaker.

— Check if the system fuse is blown—replace the

fuse.

— Check if the power switch on the HVAC equipment

is in the Off position—set to the On position.

— Check the wiring between the thermostat and the

HVAC equipment—replace any broken wires and tighten any loose connections.

— If 24 Vac is present, proceed with troubleshooting.

Remove the thermostat from the subbase for 2 minutes. After 2 minutes, replace the thermostat on the subbase.

Enter Installer Setup 37 and reconfigure the display.

Enter Installer Setup 14 and reconfigure the display.

Bad thermostat location. Relocate the thermostat. Display shows two dashes and

a degree sign. Upper or lower temperature

limits were reached.

heating

Installer Setup 22 is set for remote sensing and the sensor is missing or the circuit is open or shorted.

Check the temperature setpoints:

• Heating limits are 40 to 90°F (7 to 31°C).

• Cooling limits are 45 to 99°F (9 to 37°C).

M6788

(continued)

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T7100F MICROELECTRONIC CONVENTIONAL OR HEAT PUMP THERMOSTAT

TROUBLESHOOTING GUIDE (Continued)

Symptom Possible Cause Action

Heating does not come on.

Cooling does not come on.

Cooling does not come on (continued)

System On indicator is lit, but no heat is being delivered.

24V is present on all terminals.

No power to the thermostat. • Check that X terminal is connected to the system

Thermostat minimum Off time is activated and wait indicator is displayed.

System selection is not set to Heat.

No power to the thermostat. • Check that the X terminal is connected to the system

Thermostat minimum Off time is activated and wait indicator is displayed.

System selection is not set to Cool.

Fan operation set to 00 (conventional heat) when it should be set to 01 (electric heat).

Conventional heating equipment turns on the fan when the furnace has warmed up to a setpoint.

Heating equipment is not operating.

When thermostat is powered but is not connected to heating/cooling equipment, arc suppression will be present (24V ghost voltage)

transformer.

• Check for 24 Vac between X and R or RH terminals. — If missing 24 Vac:

— Check if the circuit breaker is tripped—reset the

circuit breaker.

— Check if the system fuse is blown—replace the

fuse.

— Check if the system switch at the equipment is in

the Off position—set to On position.

— Check wiring between the thermostat and the

HVAC equipment—replace any broken wires and tighten any loose connections.

— If 24 Vac is present, proceed with troubleshooting.

• Wait up to five minutes for the system to respond.

• Enter Installer Setup 38. Reconfigure minimum On time (if required).

Set system selection to Heat.

transformer.

• Check for 24 Vac between X and R or RC and Y terminals. — If missing 24 Vac:

— Check if the circuit breaker is tripped—reset the

circuit breaker.

— Check if the system fuse is blown—replace the

fuse.

— Check if the system switch at the equipment is in

the Off position—set to the On position.

— Check wiring between thermostat and HVAC

equipment—replace any broken wires and tighten any loose connections.

— If 24 Vac is present, proceed with troubleshooting.

• Wait up to five minutes for the system to respond.

• Enter Installer Setup 33. Reconfigure minimum Off time (if required).

Set system selection to Cool.

Enter Installer Setup mode number 02 and reconfigure the fan operation.

Wait a minute after seeing the On indicator and then check the registers.

Verify operation of heating equipment in Self-Test.

Connect heating/cooling equipment to the thermostat. Voltage will drop to zero.

69-0964–2

69-0964–2 D.S. Rev. 12-98 Printed in Taiwan R.O.C. www.honeywell.com/building/components