White Rodgers 1F89-11 Thermostat User Manual
Contents
1. Lev eling is for appearance only and will not affect thermo stat operation If you are using existing mounting holes or if holes drilled are too large and do not allow you to tighten base snugly use plastic screw anchors to secure subbase 9 Push excess wire into wall and plug hole with a fire resistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation NON ELECTRIC HEAT SYSTEMS Read the following information before clipping the non electric heat jumper If you are unsure of your application contact a qualified serviceperson If your emergency or auxiliary system is non electric gas oil etc and will energize the blower then jumper W904 on the back of the thermostat base mustbe cut see fig 1 W904 CUT FOR NON ELECTRIC AUX ce F ER BATTERY CUTOUT FOR ARMCHAIR DEMONSTRATION O Screw anchors Mounting holes 7 Figure 2 Thermostat base If your emergency or auxiliary heat system is electric and requires that the thermostat energize the fan circuit do not cut jumper W904 O B TERMINAL SWITCH SELECTION The O B switch on this thermostat is factory set to the O position This will accommodate the majority of heat pump applications which require the changeover relay to be energizedin COOL If the thermostat you are replacing or the heat pump being installed with this thermostat require the B terminal to energize the changeover2. system off move the SYSTEM switch to OFF The FAN switch controls the fan operation When the FAN switch is set to AUTO the fan will cycle with the Heat Pump When the FAN switch is set to ON the fan will run continuously regardless of SYSTEM switch position
3. OR 6 HOURS AND THE SYSTEM HAS NOT BEEN OPERATIONAL FOR AT LEAST 5 MINUTES Before you begin operating your thermostat you should be familiar with its features and with the display and the location and operation of the thermostat buttons Your thermostat consists of two parts the thermostat cover and the base To remove the cover gently pull it straight out from the base To replace the cover line up the cover with the base and press gently until the cover snaps onto the base THE THERMOSTAT BASE Other than the 4 and buttons the following are located behind the door on the bottom of the thermostat cover see fig 6 Pull the door down to open it The Thermostat Buttons and Switches Red arrow Raises temperature setting O Blue arrow Lowers temperature setting 3 FAN switch ON AUTO SYSTEM switch COOL OFF HEAT EMER The Display 6 HEAT is displayed when the SYSTEM switch is in the HEAT position COOL is displayed when the SYS TEM switch is in the COOL position COOL or HEAT is displayed flashing when the compressor is in lockout mode OFF is displayed when the SYSTEM switch is in the OFF position 6 Displays current room temperature 7 EMERGENCY is displayed when the system switch is in the EMER position Displays current set temperature OPERATING FEATURES Now that you are familiar with the thermostat buttons and display read the following information to learn about the man
4. Temperature Range 45 F to 90 F 7 C to 32 C Operating Ambient Temperature Range 32 F to 105 F WHITE RODGERS DIVISION EMERSON ELECTRIC CO 9797 REAVIS ROAD ST LOUIS MISSOURI 63123 5398 BE Printed in U S A DESCRIPTION e F C convertibility Temperature range 45 to 90 F e Eight terminals for single or two transformer systems O B terminal for heat pump systems Armchair Demonstration Capability PRECAUTIONS To prevent electrical shock and or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete Do not use on circuits exceeding specified volt age Higher voltage will damage control and could cause shock or fire hazard Do not short out terminals on gas valve or pri mary control to test Short or incorrect wiring will damage thermostat and could cause personal injury and or property damage SPECIFICATIONS Operating Humidity Range 0 to 90 RH non condensing Shipping Temperature Range 40 F to 150 F APPLICATIONS For use with Heat pump systems with up to two stages heat one stage cool DO NOT USE WITH e Millivolt systems e Systems exceeding 30 VAC and 1 5 amps e 3 wire zoned hydronic heating systems PART NO 37 5741A Replaces 37 5612B 9636 INSTALLATION REMOVE OLD THERMOSTAT 1 Shutoff electricity atthe main fuse box until installation is complete Ensure that electrical power is discon nect
5. WHITE RODGERS 1F89 11 Non Programmable Electronic Digital Heat Pump Thermostat INSTALLATION AND OPERATION INSTRUCTIONS Operator Save these instructions for future use FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND OR PROPERTY DAMAGE Your new White Rodgers Digital Heat Pump Thermostat uses the technology of a solid state microcomputer to provide precise temperature control This thermostat of fers you the flexibility to set heating and cooling tempera tures that fit your needs Features Simultaneous heat and cool temperature storage e LCD continuously displays set point and room tem perature This thermostat is intended for use with a 24 volt system do not use this thermostat with a millivolt or line voltage system If in doubt about whether your wiring is millivolt line or low voltage have it inspected by a qualified heating and air conditioning contractor or electrician Do not exceed the specification ratings All wiring must conform to local and national electrical codes and ordinances This control is a precision instrument and should be handled carefully Rough handling or distorting compo nents could cause the control to malfunction ELECTRICAL DATA Electrical Rating 20 to 30 VAC 50 60 Hz or D C 0 05 to 1 5 Amps Load per terminal 1 5 Amps Maximum Total Load All terminals combined THERMAL DATA Setpoint
6. ating system will stop immediately and the first stage will stop within three to four minutes Cooling System To prevent compressor and or property dam age if the outdoor temperature is below 50 F DO NOT operate the cooling system 1 Move SYSTEM switch to COOL position 2 Press E to adjust thermostat setting below room temperature The blower should come on immediately on high speed followed by cold air circulation How ever if the fan is running but the compressor is not running and the word COOL is flashing the compres sor lockout feature is operating see Lockout Bypass Optiontotemporarily overridethe compressorlockout feature during testing 3 Press H to adjust temperature setting above room temperature The cooling system should stop oper ating LOCKOUT BYPASS OPTION FOR QUALIFIED SERVICE TECHNICIANS USE ONLY OPERATORS SHOULD NOT USE THIS FEA TURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE OR PERSONAL INJURY COMPRESSOR SHORT TERM CYCLE PROTECTION This thermostat has a built in short term 5 minute time delay During this 5 minute period the thermo stat will lock out the compressor to allow head pres sure to stabilize If you want to override this feature while testing thermostat operation move the SYS TEM switch to OFF position for 6 to 10 seconds then back to the desired mode DO NOT USE THE LOCKOUT BYPASS OPTION UNLESS THE COMPRESSOR OIL HEATERS HAVE BEEN OPERATIONAL F
7. ed 2 Remove the front cover of the old thermostat With wires still attached remove wall plate from the wall Ifthe old thermostat has a wall mounting plate remove the thermostat and the wall mounting plate as an assembly 3 Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat 4 Disconnect the wires from old thermostat one ata time DO NOT LET WIRES FALL BACK INTO THE WALL 5 Install new thermostat using the following procedures ATTACH THERMOSTAT BASE TO WALL 1 Remove the packing material from the thermostat 2 If necessary cut the non electric heat jumper see NON ELECTRIC HEAT SYSTEMS Check the set ting of the O B switch see O B TERMINAL SWITCH SELECTION 3 If you want to review the thermostat features before mounting the thermostat on the wall see ARMCHAIR DEMONSTRATION 4 Gently pull the thermostat cover straight off the base Forcing or prying on the thermostat will cause damage to the unit 5 Check that the system switch is in the OFF position Connect wires beneath terminal screws on base using appropriate wiring schematic see figs 3 through 5 6 Place base over hole in wall and mark mounting hole locations on wall using base as a template 7 Move base out of the way Drill mounting holes 8 Fasten base loosely to wall as shown in fig 2 using two mounting screws Place a level against bottom of base adjust until level and then tighten screws
8. gram for two transformer systems with safety circuits in BOTH systems ADJUSTABLE ANTICIPATION The first stage has anticipation that can be set to 2 5 or 4 cycles per hour for heating or cooling The second stage heat has a fixed anticipation To change the first stage anticipation in the HEAT mode place the SYSTEM switch inthe OFF position While holding the H button move the SYSTEM switch to HEAT The display will show S for slow factory setting or F for fast Release the A button when the desired anticipation setting is displayed CHECK THERMOSTAT OPERATION If at any time during testing your system does not operate properly contact a qualified serviceperson Fan Operation 1 Turn on power to the system 2 Move SYSTEM switch to OFF position 3 Move FAN switch to ON The blower should begin to operate 4 Move FAN switch to AUTO position The blower should stop within a short period of time Heating System 1 Move SYSTEM switch to HEAT position If the auxil iary heating system has a standing pilot be sure to light it 2 Press H to adjust thermostat setting to 90 and hold for five seconds Both stages of the heating system should begin to operate However if the word HEAT is flashing the compressor lockout feature is operating see Lockout Bypass Option to temporarily override the compressor lockout feature during testing 3 Press N to adjust temperature setting below room temperature The auxiliary he
9. it or Safety Switches MONITOR SWITCH A Contactor Stage 2 Hot 120 VAC Is Neutral TWO COMMONS MUST TRANSFORMER Changeover Relay is energized in COOL when O B switch is in the O position BE JUMPERED TOGETHER Changeover Relay is energized in HEAT when O B switch is in the B position Figure 4 Typical wiring diagram for two transformer systems with NO safety circuits Polarity must be observed If the HOT side of FAN ON MALF the second transformer is jumpered to the Thermostat O COMMON side of the first transformer a short Control gt will be made Damage to equipment will occur FAN FAN Circuit AUTO AUTO EMERGENCY when power is restored Heat Emer 6 O Beene SYSTEM Limit or Limit or Safety HoT Safety Switches SYSTEM Switches Y NE VAC NEUTRAL Emergency MONITOR Relay SWITCH 4 Contactor Stage 2 SIE Y MX Two COMMONS MUST Limit or Auxiliary Heating Transformer The accessory relay scheme is required when safety circuits exist in both systems I RELAY N O ACCESSORY i 1 CONTACT I COMMON Limit or BE JUMPERED TOGETHER Safety Safety Switches Switches HOT Changeover Relay is energized in COOL when OJB switch is in the O position Changeover Relay is energized in HEAT when O B switch is in the B position COMMON Pl zo VAC NEUTRAL Heat Pump Transformer Figure 5 Typical wiring dia
10. relay in HEAT the O B switch must be moved to the B position ARMCHAIR DEMONSTRATION Armchair Demonstration is a unique feature that allows you to review your thermostat features before being mounted on the wall If you wish an Armchair Demonstration of your thermo stat temporarily hold a new 9 volt battery against the wires in the battery cutout on the back of the thermostat base for approximately 45 seconds This will provide a charge that will last approximately 30 to 45 minutes to allow the thermostat to be observed The following wiring diagrams show typical terminal the original manufacturer s instructions identification and wiring For proper installation refer to Relay contacts shown are thermostatically operated Thermostat Control Circuit FAN AUTO Heat or Cool SYSTEM MONITOR SWITCH Emergency Relay Aux Emer Relay Stage 2 Hot Changeover Relay is energized in COOL when O B switch is in the O position Neutral Changeover Relay is energized in HEAT when O B switch is in the B position TRANSFORMER Figure 3 Typical wiring diagram for single transformer systems If safety circuits are in Thermostat only one of the systems Control remove the transformer FAN Circuit of the system with NO AUTO ehr Heat safety circuits or Cool THERMOSTAT SYSTEM CUT AND TAPE OFF SYSTEM Emergency Relay Lim
11. y features of the thermostat TEMPERATURE SET POINT Press or until the display shows the temperature you want F C CONVERTIBILITY Press H and E but tons until the temperature display is in Celsius C To display Fahrenheit F repeat the process TEMPERATURE DISPLAY ADJUSTMENT Your new thermostat has been accurately set in our fac tory However if you wish you may adjust your new thermostat temperature display to match your old thermostat This can be accomplished within a 4 range as follows OPERATION o o EMER MALF FANON__AUTO OFE_HEAT irs Figure 6 Thermostat display buttons and switches 1 Place the SYSTEM switch in the OFF position 2 While holding the button move the SYSTEM switch to HEAT or COOL Release the u button when the display shows only the current tem perature 3 Press or to adjustthe displayed temperature to your desired setting 4 Thethermostatwill resume normal operation within two minutes RESET BUTTON see fig 2 resets the thermostat to the factory setting This button can be used to reset the thermostat if it has been subjected to a voltage spike and has become scrambled or frozen SETTING YOUR THERMOSTAT This thermostat is easy to operate Set the SYSTEM switch to HEAT COOL or EMERgency Press H or u until the temperature to maintain is shown on the right side of the display To turn the
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