Honeywell Thermostat T694A User's Manual
Contents
1. Accessories When replacing old style T451A T651A use a wallplate to cover previous wall marks This wallplate is packaged with the T651A2028 SUPER TRADELINE model For T451 applications see Accessories 1 Before mounting thermostat connect system wiring to proper terminals at rear of thermostat Follow equip ment manufacturer instructions or refer to Fig 4 for typical system hookup 2 Remove cover assembly from thermostat Attach thermostat to junction box with two screws provided Re place cover assembly See Fig 3 3 Use 1 16 hex Allen wrench to install Allen locking cover screw Fig 3 Mounting T451A T651A 220213 WALLPLATED ACCESSORYO OPTIONAL O COVERS OLD T651A0 WALL MARKS WHENO INSTALLING NEW T651A TABS HOLDO COVER ASSEMBLYO AT TOP SNAPO IN AT BOTTOM MOUNTINGO SCREWS 2 USE 2x40 JUNCTIONO BOX M6131 T694A B D F THERMOSTATS Fig 5 All T694A B D F Thermostats mount vertically on a 2 x 4in or4 x 4 in junction box See Fig 5 Use 2 x 4 in cover plate with 4 x 4 in junction box 1 Before mounting connect system wiring to proper color coded leads at rear of thermostat Follow equipment manufacturer instructions or refer to Figs 6 9 for typical system hookups T451A T651A T694A B D F INSTALLATION 2 Remove thermostat cover assembly Attach thermo stat to junction box with two screws provided Replace thermostat cover assemb2. Vertical faceplate with Fahrenheit scale and ther ment value TRADELINE model specifications are the mometer same as those of standard models except as noted below Horizontal faceplate with Fahrenheit scale and ther mometer SUPER TRADELINE MODEL AVAILABLE Blank vertical faceplate T651A2028 Light Duty Line Voltage Thermostat Blank horizontal faceplate Wallplate FEATURES Adjustable range stops Temperature scale range 35 F to 95 F Locking cover screw Spdt switch breaks heating contacts and makes cooling contacts on temperature rise STANDARD MODELS Model Changeover Number Application System Switch Switch Fan Switch T451A2007 Heating only T451A2015 Heating only with positive OFF T651A2028 Heating cooling T694A2002 Heating cooling OFF position breaks ON OFF HI MEDIUM LO fan circuit T694B2001 Heating cooling OFF position breaks ON OFF HEAT COOL HI MEDIUM LO cooling and fan circuits T694D2009 Heating cooling Heating circuits isolated ON OFF HEAT COOL HI MEDIUM LO from cooling circuits OFF position breaks all control circuits except heat T694F2007 Heating cooling Heating circuits isolated ON OFF HEAT COOL HI MEDIUM LO from cooling circuits OFF position breaks all power to fan and thermostat With thermometer Ordering Information When purchasing replacement and modernization products fro
3. Honeywell Home and Building Control Honeywell Inc 1985 Douglas Drive North Golden Valley MN 55422 Printed in U S A Home and Building Control Honeywell Limited Honeywell Limit e 740 Ellesmere Road Scarborough Ontario MIP2V9 Helping You Control Your World QUALITY IS KEY
4. than four amps If a wider differential range is T652A for AUTO OFF switching in heating only or unacceptable use a T6051 Heavy Duty Line Voltage cooling only applications Thermostat for a smaller differential range 220124A Faceplate vertical Fahrenheit scale with thermometer Pilot Duty 125 VA 220124B Faceplate vertical Celsius scale with ther 7 2A Resistive heating contacts only mometer 220124C Faceplate horizontal Fahrenheit scale with TEMPERATURE SETTING RANGE 35 F to 95 F 2 C thermometer to 35 C with range stops removed 220124D Faceplate horizontal Celsius scale with ther mometer STORAGE TEMPERATURE 40 F to 150 F 40 C to 220125A Faceplate horizontal Fahrenheit scale with 66 C out thermometer 220125B Faceplate vertical Fahrenheit scale without FIXED DIFFERENTIAL 2 F 1 C thermometer 220125C Faceplate horizontal Celsius scale without SWITCHING ACTION thermometer T451 Spst Contacts make on temperature fall 220125D Faceplate vertical Celsius scale without ther T651 Spdt Heating contacts break and cooling contacts mometer make on temperature rise 220126A Faceplate horizontal blank concealed setpoint T694 Spdt Heating contacts break and cooling contacts without thermometer make on temperature rise 220126B Faceplate vertical blank concealed setpoint without thermometer FIELD WIRING CONNECTIONS No 10 screw terminals 220213 Wallplate covers old T451A T651
5. A wall marks on T451A T651A color coded leads on T694 models when installing new T451A T651A 199242 Wallplate covers old T694 wall marks when DIMENSIONS See Figs 1 and 2 installing new T694 Supplied with SUPER TRADELINE model T651A Fig 1 T451A T651A mounting dimensions in in mm 40 50 60 70 80 90 45 bee c us eu 15n 170 22 160 320 24 14 11890 _ p 160 M6130 3 63 2051 4 T451A T651A T694A B D F INSTALLATION Fig 2 T694A B D F mounting dimensions in in mm SYSTEM ON 70 4 71 8 124 290 lt 4550 2H 125 85 T694B SHOWN lt 1 130 320 36 N WARNING Do not use on electric heat Possible fire hazard if T694A B D used on electric heat T694F can be used on electric heat WHEN INSTALLING THIS PRODUCT 1 Read these instructions carefully Failure to follow them could damage the product or cause a hazardous condition 2 Check the ratings given in the instructions and on the product to make sure the product is suitable for your application 3 Installer must be a trained experienced service technician 4 After installation is complete check out product op eration as provided in these instructions N CAUTION Disconnect power supply before making wiring connecti
6. Honeywell T451A T651A T69 4A BDF Light Duty Line Voltage Thermostats T451 T651 T694 Thermostats provide on off control of valves fans motors contactors electric heat elements duct furnaces and fan coil units in heating cooling systems Switching subbases pro vide manual control of heating cooling and fan T694B D F E 1451A provides heating control only E T651A provides heating and cooling control E T694A B D F supplied with switching subbase to pro vide manual control of heating cooling and fan E Q473A B switching subbase available for T451A T6514 Bl Automatic cooling anticipator for 120 208 240 and 277 Vac ll Thermostats use spst or spdt snap switches activated by bimetal sensor E T451A T651A mount on standard vertical or horizon tal junction box ll Options include adjustable range stops locking cover concealed setpoint locking setpoint positive off con trol cover thermometer CONTENTS SDECIICAHONS Mie rete trates erences 2 Ordering Information eese p TnstallatiQny Ses e TS 4 Checkout cre EET ETT 7 J H Rev 9 92 Honeywell Inc 1992 Form Number 63 2051 4 T451A T651A T694A B D F SPECIFICATIONS ORDERING INFORMATION Specifications SUPER TRADELINE MODEL Automatic cooling anticipator for 120 208 240 and TRADELINE models are selected and packaged to provide 277 Vac ease of stocking ease of handling and maximum replace
7. ly Fig 4 T652A in heating cooling system HOT M6134 Fig 5 Mounting T694A B D F COVER PLATE TABS HOLDO COVER ASSEMBLYO AT TOP SNAPO IN AT BOTTOM MOUNTINGO SCREWS 2 USE 2x4 OR 4x40 JUNCTION BOX T694B SHOWN M6135 63 205 1 4 T451A T651A T694A B D F INSTALLATION Fig 6 T6944A in heating cooling system with Fig 8 T694D with isolated switching for heating independent valve and fan circuits and cooling L1 HOT L2 See eM pono s or PANI SUMMER CHANGEOVER SWITCH HEAT COOL N POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED N POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED A SPST SWITCH M6132 Fig 7 T694B connected for positive off switch Fig 9 T694F with positive off position ing in COOL position L1 ido HOT AN L2 L2 coe pun me nee YEL HEAT COOL HEAT COOL A POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD N POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED PROTECTION AS REQUIRED M6136 After the thermostat is wired and mounted perform the following system checkout procedure T451 T651 IN HEATING APPLICATION 1 Close disconnect switch if used 2 Adjust setpoint above room temperature and check that heating system turns on 3 Adjust setpoint below room temperature and check that heating s
8. m your TRADELINE wholesaler or your distributor refer to the TRADELINE Catalog or price sheets for complete ordering number or specify 1 Order number 2 Accessories if desired 3 Order additional components and system accessories separately If you have additional questions need further information or would like to comment on our products or services please write or phone 1 Your local Honeywell Home and Building Control Sales Office check white pages of your phone directory 2 Home and Building Control Customer Satisfaction Honeywell Inc 1885 Douglas Drive North Golden Valley MN 55422 4386 612 951 1000 In Canada Honeywell Limited Honeywell Limitee 740 Ellesmere Road Scarborough Ontario M1P 2V9 International Sales and Service offices in all principal cities of the world Manufacturing in Australia Canada Finland France Germany Japan Mexico Netherlands Spain Taiwan United Kingdom U S A T451A T651A T694A B D F SPECIFICATIONS ELECTRICAL RATINGS A FINISH Brushed champagne gold and dark pewter face Voltage Vac plate beige and brown case a aA UNDERWRITERS LABORATORIES INC Listed Full Load 8 4 Locked Rotor 48 24 ACCESSORIES 7 7 Q473A2006 Switching Subbase Use with T651A for Wider temperature differential ranges can occur when HEAT OFF COOL manual system switching used in cooling applications with current draws that are Q473B2005 Switching Subbase Use with T451A more
9. ons to prevent electrical shock and equip ment damage Use copper wire only LOCATION Select the same location as control to be replaced or select a new location about 5 ft 1 5 m above the floor on an inside wall where there is good air circulation at average room temperature 3n 76 M6129 Installation Do not install the thermostat where it may 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 uncooled areas behind the thermostat such as an outside wall WIRING AND MOUNTING Disconnect power supply before making wiring connec tions to prevent electrical shock and equipment damage All wiring must comply with applicable electrical codes ordinances and regulations Use copper wire only Make sure that thermostat electrical rating is sufficient for current requirements of controlled equipment and that listed volt age matches power supply T451A T651A THERMOSTATS Fig 3 T451A T651A Thermostats mount vertically on a 2 x 4 in or 4 x 4 in junction box See Fig 3 Use 2 x 4 in cover plate with 4 x 4 in junction For horizontal mounting the appropriate horizontal faceplate is required Horizontal with thermometer and horizontal blank faceplates are packaged with the T651A2028 SUPER TRADELINE model For additional faceplates or T451 applications see
10. ystem turns off 4 Adjust thermostat for desired room temperature IN COOLING APPLICATION 1 Close disconnect switch if used 2 Adjust setpoint below room temperature and check that cooling system turns on 3 Adjust setpoint above from temperature and check that cooling system turns off 4 Adjust thermostat for desired room temperature NOTE Wider temperature differential ranges can occur when used in cooling applications with current draws that are more than four amps If a wider differential range is unacceptable use a T6051 Heavy Duty Line Voltage Thermostat for a smaller differential range T451A T651A T694A B D F CHECKOUT Checkout T694 NOTE System switch must be in ON position to check out system 1 Close the disconnect switch if used and press HEAT switch adjust setpoint above room temperature and check that heating system turns on 2 Adjust setpoint below room temperature and check that heating system turns off 3 Press COOL switch adjust setpoint below room temperature Check that cooling system turns on and fan runs continuously 4 Press fan LO MED HI switches and check that fan control operates properly 5 Adjust setpoint above room temperature and check that cooling system turns off Fan operates continuously 6 Adjust thermostat for desired room temperature If questions arise regarding this product contact your distributor or local Honeywell representative 63 2051 4
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