Honeywell T7100D Product Data Download | Manualshive

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PRODUCT DATA

® U.S. Registered Trademark
Copyright © 1999 Honeywell Inc. • • All Rights Reserved

T7100D,E,F Microelectronic

Commercial Thermostats and

Q7100A,C,D Subbases

APPLICATION

The T7100 Microelectronic Commercial Thermostats and
Q7100 Subbases provide electronic control of 18 to 30 Vac
single zone heating, ventilating and air conditioning
(HVAC) equipment.

FEATURES

•

Minimum off time for cooling compressor and
heat pumps.

•

Field configurable (select models) for:
—

°

F or

°

C temperature display;

— automatic or manual changeover;
— electric or conventional heat fan operation.

•

Up to two light emitting diodes (LEDs) for easy
reference.

•

Remote temperature sensor and setback timer
capability (select models).

•

System test simplifies troubleshooting.

Contents

Application ........................................................................... 1
Features .............................................................................. 1
Specifications ......................................................................

2

Ordering Information ...........................................................

2

Installation ........................................................................... 3
Wiring .................................................................................. 5
Settings ...............................................................................

6

Installer Setup .....................................................................

7

Installer Self-Test ................................................................. 10
Operation ............................................................................ 12
Wiring Diagrams .................................................................. 13
Troubleshooting Guide ........................................................ 15

68-0163-3

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Summary of Contents for T7100D

Page 1: ...m off time for cooling compressor and heat pumps Field configurable select models for F or C temperature display automatic or manual changeover electric or conventional heat fan operation Up to two light emitting diodes LEDs for easy reference Remote temperature sensor and setback timer capability select models System test simplifies troubleshooting Contents Application 1 Features 1 Specifications...

Page 2: ...00 Models See Table 1 Table 1 T7100 Thermostat Models aDepends on the model Q7100 Models See Table 2 Table 2 Q7100 Subbase Models aDepends on the model Electrical Rating Input Power 18 to 30 Vac 50 60 Hz Load Rating See Table 3 Table 3 Maximum Amperes at 18 to 30 Vac Relay Running A Inrush A Heat 02 to 1 5 3 5 at 200 000 cycles Cool 02 to 1 5 7 5 at 100 000 cycles Fan Reversing Valve Emergency Hea...

Page 3: ...lation Location Subbase Without Remote Mounted Temperature Sensor Install the subbase about 5 ft 1 5m above the floor in an area with good air circulation at average temperature See Fig 2 Do not install the subbase where it can be affected by drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or appliances concealed pipes and chimneys unheated uncoole...

Page 4: ...T7100 Q7100 Thermostat Subbase Fig 7 Nine T7047C Sensors providing temperature averaging network for T7100 Q7100 Thermostat Subbase Subbase Installation The subbase can be mounted horizontally on the wall or on a 2 in x 4 in wiring box 1 Position and level the subbase for appearance only The thermostat functions properly even when not level 2 Use a pencil to mark the mounting holes See Fig 8 3 Rem...

Page 5: ...OUNTING HOLES MOUNTING SCREWS M6531 WALL ANCHORS 2 Fig 9 Proper wiring technique Table 4 Terminal Designations and Descriptions M4826 FOR WRAPAROUND INSERTION STRIP 7 16 IN 11 MM FOR STRAIGHT INSERTION STRIP 5 16 IN 8 MM Standard Terminal Designations Typical Connection Function Terminal Type B Heating changeover valve or damper Output 24V powered contact D D Remote setback timer Input Dry contact...

Page 6: ...uto 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 See Fig 11 NOTE Always press the keys with your fingertip or similar blunt tool Sharp instruments like a pen or pencil point can damage the keyboard Temperature Settings The default setpoint for heat is 70 F 21 C and for cool is 78 F 25 5 C Press the incr...

Page 7: ... Fig 13 LCD display of all segments Fig 12 Set Installer Setup lockout DIP switch 1 on back of thermostat INSTALLER SETUP NOTE For most applications the thermostat factory settings do not need to be changed Review the factory settings in Table 6 and if no changes are necessary go to the Installer System Test section The Installer Setup is used to customize the thermostat to specific systems Instal...

Page 8: ...ms 08 8 cph factory setting for conventional systems 09 9 cph used for electric heat systems Output stages of cooling T7100F only 08 02 Two stages of cool 00 or 01 00 No cooling 01 One stage cooling Cooling cycle rate T7100F only 09 04 Stage 1 at 4 cph 03 03 3 cph 10 04 Stage 2 at 4 cph Changeover T7100F only 12 00 System setting key is operational 01 or 02 01 Heat Cool Off no Auto 02 Auto only De...

Page 9: ...3 04 4 minute minimum off time for the compressor 00 01 02 03 or 05 Minimum number of minutes 0 thru 5 the compressor is off between calls for the compressor Temperature range stops in heating T7100F only 34 90 Highest heating setpoint allowed 40 89 Temperature range 1 F increments for heating setpoint Temperature range stops in cooling T7100F only 35 45 Lowest cooling setpoint allowed 46 99 Tempe...

Page 10: ...NOTE Press and hold the increase and decrease keys together for three seconds to exit the Self Test The Self Test times out after five minutes without any key presses Thermostat Information 1 Press the Information i key to access the thermostat information M6792A TEST NUMBER Test Number Self Test Description 10 19 Heating equipment can be turned on and off 20 29 Emergency heat Q7100C only equipmen...

Page 11: ...stem fan remain on 13 Stage three heat turns on Stage one and stage two heat remain on 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 models of Q7100C subbase i 20 Change from heating to emergency heating equipment Self Test 21 Emergency heat turns on System fan also turns on 20 Emergency heat tu...

Page 12: ...tly before the room temperature reaches the setpoint to keep the heat remaining in the ductwork from overheating the room In severe weather a conventional control with a heat anticipator tends to turn off the system too soon so the effective setpoint is somewhat below the setpoint In very cold weather the difference between setpoint and effective control point can be 5 F or 6 F 2 C or 3 C with a c...

Page 13: ... when using the Override key a remote setback timer or a occupancy sensor When using the override feature the temperature settings change according to the Installer Setup 27 setting When the Override key select T7100F models is pressed the thermostat temporarily changes from the comfort setpoint to the temporary setpoint by the amount set in Installer Setup 27 See Table 11 Pressing the key a secon...

Page 14: ...TO THE D TERMINAL DO NOT PARALLEL SEVERAL THERMOSTATS FROM A SINGLE SOURCE UNLESS ISOLATION RELAYS ARE USED POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED EM HT RELAY DOES NOT CYCLE TO TURN OFF THE EM HEAT GO TO SYSTEM SELECTION AND CHOOSE HEAT IF O B INPUT IS REQUIRED JUMPER W1 TO Y 1 M15324B COMPRESSOR CONTRACTOR FAN RELAY D O G Y X1 COOL CHANGEOVER VALVE HEAT CHANGEOV...

Page 15: ...s in the Off position if so set to the On position Check wiring between thermostat and HVAC equipment and replace any broken wires and tighten any loose connections If 24 Vac is present proceed with troubleshooting Temperature display is incorrect Room temperature display has been reconfigured Enter Installer Setup 37 and reconfigure the display Thermostat is configured for F or C display Enter In...

Page 16: ...oes not come on No power to the thermostat Check that X terminal is connected to the system 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 if so reset the circuit breaker Check if the system fuse is blown if so replace the fuse Check if the system switch at the equipment is in the Off position if so set to the On positio...

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