Honeywell Thermostat T4098 User Manual - Honeywell Thermostat Manual Download

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Sunday, April 5, 2020

Honeywell Thermostat T4098 User Manual

T4098A,B Deluxe Electric Heat Thermostats PRODUCT DATA FEATURES ¥ Controls both fan-forced and baseboard electric heaters. ¥ Temperature-responsive, vapor-filled dual diaphragm sensing element provides 2°F (1°C) sensitivity with minimum droop. ¥ Replaces virtually all standard wall-mounted line voltage thermostats. ¥ Includes long-lasting Micro Switchª mechanism. ¥ Color-coded leads allow easy installation. ¥ Protective cover door opens to provide access to setpoint knob. ¥ Attractive sloped faceplate allows easy viewing of temperature. GENERAL ¥ Classic styling. The T4098A,B Deluxe Electric Heat Thermostats provide high performance line voltage direct control of resistance-rated electric heating equipment. CONTENTS General ............................................................................... 1 Features .............................................................................. 1 Specifications ...................................................................... 2 Ordering Information ........................................................... 2 Installation ........................................................................... 3 Settings and Adjustments ................................................... 4 Checkout ............................................................................. 6 Operation ............................................................................ 6 Copyright © 1996 Honeywell Inc. ¥ ¥ All Rights Reserved 68-0146-3 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS Electrical Ratings (Noninductive Resistive Loads): SPECIFICATIONS 22A at 120/208/240 Vac, 60 Hz. 19A at 277 Vac, 60 Hz. IMPORTANT The Specifications given in this publication do not Wiring Connections: include normal manufacturing tolerances. Therefore, 6 in. (150 mm) leads suitable for connecting to aluminum this unit may not exactly match the listed wiring if approved special service CO/ALR connectors are specifications. Also, this product is tested and used. calibrated under closely controlled conditions, and some minor differences in performance can be Sensing Element: expected if those conditions are changed. For exact Vapor-filled dual diaphragm. engineering specifications, contact your Honeywell sales representative. Setpoint Adjustment: Knurled knob on front of thermostat. TRADELINE¨ Models Differential: TRADELINE¨ models are selected and packaged to provide 2°F (1°C), nonadjustable. ease of stocking and handling and also maximum replacement value. See Table 1 for TRADELINE¨ model Dimensions: specifications. See Figs. 1 and 2. Table 1. Thermostat Specifications. Mounting: Temp. Mount directly on vertical 2 x 4 in. outlet box, or on 4 x 4 in. Model Rating outlet box using ring adapter (ordered separately). Number Switching F¡ (C¡) Finish Includes Approvals: T4098A Spst; 50¡ to 90¡ Classic Cover Underwriters Laboratories Listed: File No. E47434, Guide makes (10¡ to 30¡) beige or thermometer, No. XAPX. single line Premier temperature Canadian Standards Association Listed: File No. LR1322. break on Whiteª range stops, Canadian Standards Association Performance Certified: temperature and locking C273.4. fall. cover. T4098B Dpst; 50¡ to 90¡ Classic Cover Accessories: makes (10¡ to 30¡) beige or thermometer, 272804A Range Stop and Locking Screw Assembly. Includes double line Premier temperature locking cover screws, Tinnerman clips, wrench, and range break with Whiteª range stops, stops—two plastic pins to insert inside cover for field- setting knob and locking selection of minimum and maximum temperature settings. in OFF cover. position. ORDERING INFORMATION When purchasing replacement and modernization products from your TRADELINE¨ wholesaler or distributor, refer to the TRADELINE¨ Catalog or price sheets for complete ordering number or specify. 1. Model number. 2. Switching. 3. Type of finish. 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 Relations Honeywell, 1885 Douglas Drive North Minneapolis, Minnesota 55422-4386 In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. 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. 68-0146—3 2 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS FRONT VIEW SIDE VIEW 2-5/8 (67) CAUTION 1. Disconnect power supply to prevent electrical shock or equipment damage. 2. If connecting with aluminum conductors, use CO/ ALR solderless wire connectors to avoid fire hazard. 2-1/8 3. Do not remove thermostat cover until wiring is 4-1/2 (54) (115) complete to avoid damaging the sensing element. 4-1/2 (115) Location Install a vertical outlet box that is used to mount the thermostat about 5 ft (1.5m) above the floor in an area with good air circulation at room temperature. 1 2-7/8 (73) 1-3/4 M5790 Do not install the thermostat where it may be affected by: (25) (45) —drafts or dead spots behind doors, in corners or under cabinets. Fig. 1. T4098 dimensions in in. (mm). — hot air from convectors. —radiant heat from sun or appliances. — concealed pipes and chimneys. RECYCLING NOTICE — unheated (uncooled) areas such as an outside wall behind the thermostat. If this control is replacing a control that contains mercury in a sealed tube, do not place your old control in the trash. Wiring and Mounting Contact your local waste management authority for instructions regarding recycling and the proper CAUTION disposal of an old control containing mercury in a 1. Handle the thermostat with care to avoid sealed tube. damaging the sensing element or control. 2. Use a separate limit control in the heating appliance. L2 INSTALLATION T4098A 2 1 3 L1 L1 When Installing this Product… (HOT) 1. Read these instructions carefully. Failure to follow these instructions could damage the product or cause a T1 hazardous condition. 2. Check the ratings on the product to make sure the product is suitable for your application. 3. Installer must be a trained, experienced service technician. 4 4. After installation is complete, check out product ELECTRIC operation as provided in these instructions. HEATER 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD WARNING PROTECTION AS REQUIRED. HIGH VOLTAGE CONTROL. 2 USE SPECIAL SERVICE CO/ALR SOLDERLESS CONNECTORS ELECTRICAL SHOCK HAZARD. WHEN CONNECTING ALUMINUM CONDUCTORS OR A FIRE HAZARD MAY RESULT. Follow local codes and ordinances when installing this thermostat. Improper handling can cause serious 3 BREAKS AND REMAKES BELOW -31¡F(-35¡C); NORMALLY THERMALLY ACTIVATED. BREAKS ON A TEMPERATURE RISE; injury or death. MAKES ON A TEMPERATURE FALL. 4 USE A SEPARATE LIMIT CONTROL IN THE HEATING APPLIANCE. M5813B Fig. 2. Typical wiring connections for T4098A. 3 68-0146—3 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS L2 2 T4098B WALL 1 3 6 L1 L1 L2 (HOT) RED WIRE 5 THERMOSTAT BASE T1 T2 4 ELECTRIC OUTLET HEATER BOX 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 2 USE SPECIAL SERVICE CO/ALR SOLDERLESS CONNECTORS WHEN CONNECTING ALUMINUM CONDUCTORS OR A FIRE HAZARD MAY RESULT. 3 BREAKS AND REMAKES BELOW -31¡F(-35¡C); NORMALLY MOUNTING THERMALLY ACTIVATED. BREAKS ON A TEMPERATURE RISE; SCREWS (2) MAKES ON A TEMPERATURE FALL. M5794 4 USE A SEPARATE LIMIT CONTROL IN THE HEATING APPLIANCE. 5 BREAKS AT POSITIVE OFF ONLY; NOT THERMALLY ACTIVATED. Fig. 4. Mounting thermostat to outlet box. 6 DO NOT CONNECT GROUNDED CONDUCTORS (NEUTRAL) ON 120V OR 277V CIRCUITS. INSULATE AND TAPE, OR CUT OFF RED WIRES IF UNUSED. M5814B New Applications Fig. 3. Typical wiring connections for T4098B. ᕡ Disconnect the power supply to prevent electrical shock or equipment damage. All wiring must comply with local electrical codes and ordinances. IMPORTANT ᕢ Run the line voltage wiring to the thermostat location. If locking cover feature is desired, insert the locking ᕣ Do not remove the T4098 Thermostat Cover. Using wire cover clip in the thermostat base before mounting connectors approved for No. 12 wires, make line the thermostat on the wall. See Fig. 7. voltage connections directly to the leadwires on the thermostat. See Figs. 2 and 3 for typical wiring Replacement Applications connections. ᕡ Disconnect power to thermostat to prevent electrical ᕤ Prebend and push the solid wires into the outlet box. shock or equipment damage. All wiring must comply ᕥ While holding the thermostat base with one hand, use with local electrical codes and ordinances. the other hand to remove the thermostat cover by ᕢ Remove the old thermostat from the wall; be careful not grasping the bottom cover edge and pulling outward to damage the wiring insulation. away from the thermostat base. ᕣ Check the old wire insulation for cracks, nicks or fraying. ᕦ Mount the thermostat on the outlet box as shown in Apply approved electrical tape to insulate wires or Fig. 4. Secure the thermostat by tightening the two replace wires as necessary. mounting screws. ᕤ Do not remove T4098 Thermostat Cover. Using wire connectors approved for No. 12 wires, make line voltage connections directly to the leadwires on the SETTINGS AND ADJUSTMENTS thermostat. See Figs. 2 and 3 for typical wiring connections. ᕥ Prebend and push the solid wires into the outlet box. Calibration ᕦ While holding the thermostat base with one hand, use The T4098 Thermostats are calibrated at the factory using the other hand to remove the thermostat cover by precise instruments under closely controlled conditions. grasping the bottom cover edge and pulling outward Recalibration should not be necessary. Allow the thermostat away from the thermostat base. to operate for several hours before checking the calibration. ᕧ Mount the thermostat on the outlet box as shown in The T4098 Thermostat vapor-filled dual diaphragm sensing Fig. 4. Secure the thermostat by tightening the two mounting screws. element is affected by barometric pressure and altitude. Temperature deviations of 1°F (0.5°C) are normal. If the thermostat is mounted in a suitable location (as instructed in the Location section) and still appears out of calibration, check calibration as follows. 68-0146—3 4 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS Check Calibration THERMOSTAT ᕡ Turn the setting knob clockwise until the switch makes BASE (clicking sound). The heating equipment and fan start. ᕢ No recalibration is necessary if the thermostat switch makes with the thermostat setting at the same temperature as indicated on the thermometer. ᕣ If the thermostat setting differs from the thermometer, DUAL-DIAPHRAGM record the temperature difference and recalibrate as SENSING ELEMENT instructed in the Recalibration Procedure section. Recalibration Procedure ᕡ Note the temperature difference between the SETTING DIAL temperature setting and the thermometer. ᕢ Remove the thermostat cover. ᕣ With the thermostat cover removed, note the location of the temperature setting knob. ᕤ Remove the clear plastic knurled setting knob. See Fig. 5. ᕥ Turn the temperature setting dial the required number of degrees for calibration (so thermostat temperature setting and thermometer are the same). ᕦ Replace the knob on the setting dial. ᕧ Replace the thermostat cover and recheck the calibration. CLEAR PLASTIC KNURLED M5793 Setting Range Stops SETTING KNOB Use the range stops (included) to limit the maximum and Fig. 5. Calibrating thermostat. minimum temperatures that may be set. ᕡ Move the thermostat setting knob to the desired maximum temperature. INSIDE VIEW ᕢ Remove the thermostat cover. OF THERMOSTAT ᕣ Adjust the knob indicator tab between the range stop COVER positions to prevent interference. ᕤ Insert the range stop pins in the desired positions on the back of the thermostat cover. See Fig. 6. ᕥ Make sure pins are completely seated before replacing the thermostat cover. ᕦ Replace the thermostat cover and check the range INSERT PINS INTO TEMPERATURE stops. F 6 0 0 7 20 C 16 STOP POSITIONS. 1 5 4 2 0 2 0 Locking Cover 8 8 The thermostat cover may be locked using the locking cover 2 screws included. Locking the cover prevents unauthorized tampering of the thermostat temperature setting. ᕡ Remove the thermostat cover. ᕢ Insert the locking cover clip (included) into the slot on the back of thermostat base as shown in Fig. 7. ᕣ Using an Allen wrench, insert the locking cover screw into the clip. Secure the screw in place until it is flush with the thermostat base. M5800 Fig. 6. Setting range stops. 5 68-0146—3 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS THERMOSTAT BASE CHECKOUT LOCKING COVER IMPORTANT CLIP Make sure that all wiring connections are secure before beginning checkout. 50 70 90 THERMOSTAT COVER After thermostat installation is complete, check operation as follows: 60 ᕡ Move the thermostat setting knob clockwise until the 70 switch makes (clicking sound); the electric heater starts. 50 8 ᕢ Move the setting knob fully counterclockwise; the switch 0 breaks and the electric heater stops. 90 ᕣ Allow the thermostat to operate for several hours to ¡F determine the appropriate temperature setting. Adjust the setting as necessary. OPERATION LOCKING COVER SCREW The T4098 Thermostat provides precise temperature control of resistance-rated electric baseboard heating equipment with minimum droop. The T4098 controls room temperature within 2 F (1 C), regardless of the load of the baseboard heater. ALLEN WRENCH ° ° The vapor-filled dual diaphragm sensing element is more M5799 sensitive to temperature changes than a bimetal sensor. This accuracy, usually associated with low voltage thermostats, is Fig. 7. Locking cover. now available for line voltage control. Electric heat thermostats are often affected by the heat generated in the control. Temperature control points may vary or droop 2° to 4°F (1° to 3°C) depending on the load demand; however, temperature settings are adjusted to provide offset. The T4098 provides precise control with minimum droop. This allows better control of room temperatures from day-to-night and season-to-season while saving energy. 68-0146—3 6 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS 7 68-0146—3 T4098A,B DELUXE ELECTRIC HEAT THERMOSTATS Home and Building Control Home and Building Control Helping You Control Your World Honeywell Inc. Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 155 Gordon Baker Road Golden Valley, MN 55422 North York, Ontario M2H 2C9 Printed on recycled paper containing at 68-0146—3 C.H. Rev. 4-96 Printed in U.S.A. least 10%8 post-consumer paper fibers. www.honeywell.com/building/components

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