Digital Thermostat Owners Manual
Contents
1. Digital Thermostat Owners Manual Model KJR 25B LCD Display Shows Time Day Temperature Program Number and other feature information as required Backlight key Up and Down Key Key for changing the Temperature f setting Also used for increasing CQ and decreasing selections in the ST Time Program and Span functions Measures and displays heating and cooling system operating time for Today Yesterday This Week Last Week or Total For entering Time M Kme as alL Hi i Fan Switch Fan switch for Automatic or Continuous fan operation EMER Mode Returns display to current f jl time and temperature wM Z Front Door Cover keys Open with one finger from left or right System Switch Selector switch for Heat Cool and Off FEATURES Structure of thermostat and explanation for the keypads For entering Time Measures and displays heating and cooling system operating time for Today Yesterday This Week Last Week or Total By monitoring your energy usage you can program the thermostat to optimize energy savings ime ENeR Ewer run EMER Mode Returns display to current time and temperature We are pleased you have selected one of our broad line of wall thermostat Our products are manufactured to high quality standards and are designed for years of service Read This Before Installing Thermostat OPERATION YOUR THERMOSTAT REP2. Aux system is operating 3 Adjust temperature setting to 2 C above room temperature The auxiliary heat system should begin to operate and the display should show STG1 2 4 Press to adjust the thermostat below room temperature The Aux heating system should stop operating Cooling System 1 Move SYSTEM switch to select the Cool mode 2 Press to adjust thermostat setting below room temperature The blower should come on immediately on high speed followed by cold air circulation The display should show STG1 3 Adjust temperature setting to 2 C below room temperature The second stage cooling should begin to operate and the display should show STG1 2 4 Press to adjust the temperature setting above room temperature The cooling system should stop operating CONFIGURATION MENU The step to enter the configuration menu 1 Set SYSTEM switch to OFF 2 Press both up and down system cool off heat keys for 5 seconds to enter configuration menu The display will show the first item in the configuration menu INSTALLER CONFIGURATION MENU Press up or down key to select S 2 Displayed Press Button Factory Comments Default n os no Single stage Multi stage Backlight Button per Heat Pump Single HP1 stage H P Heat Pump 2 stage 1 1 F Backlight Recovery enable Button RECO off Recovery disabled Span one stage 1 Backlight Button Span
3. or adaptor plate 3 Remove the front cover of the old thermostat With wires still attached remove wall plate from the wall If the old thermostat has a wall mounting plate remove the thermostat and the wall mounting plate as an assembly 4 Identify each wire attached to the old thermostat 5 Disconnect the wires from the old thermostat one at a time DO NOT LET WIRES FALL BACK INTO THE WALL 6 Install new thermostat using the following procedures WARNING Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause shock or fire hazard Do not short out terminals on gas valve or primary control to test Short or incorrect wiring will damage thermostat and could cause personal injury and or property damage Selector Switches Electric Gas Switch Fan Option la 5 a o OF heiser o 2 K2 o Elec Gas A Switch 8 amp j I 2 Figure 1 Electric Gas Switch Fan Option This thermostat is configured from the factory to operate a heat cool fossil fuel gas oil etc forced air system It is configured correctly for any system that DOES NOT require the thermostat to energize the fan on a call for heat If you system is an electric heat or heat pump system that requires the thermostat to turn on the fan on a call for heat locate the ELEC GAS switch on the back of the thermostat see fig 1 and switch it to the ELEC position This will allow the thermostat to energize th
4. toggled to SS1 or HP1 by pressing the up or down key In Multi stage configuration EMER mode is useless 2 Fast or Slow Crycle Selection one stage 3 Select Backlight function OFF or ON 4 Fast or Slow Crycle Selection two stage 5 Select F or C Readout Changes the display readout to Centigrade or Fahrenheit as required 6 Selects time format display 12hours or 24hours 7 Select Compressor Lockout COMP OFF or ON Selecting COMP ON will cause the thermostat to wait 4 minutes before turning on the compressor if the heating and cooling system loses power It will also wait 5 minutes minimum between cooling and heating cycles This is intended to help protect the compressor from short cycling Some newer compressors already have a time delay built in and do not require this feature Your compressor manufacturer can tell you if the lockout feature is already present in their system When the thermostat compressor time delay occurs it will flash the setpoint for about four minutes 8 This model must select 1 9 This model must select 1 to back factory Default Setting Day and Time qme The LCD will show this information when AA batteries are first installed The temperature 5 ee W will update after a few seconds un ILJ e During time and day setting mode the temperature displays will go blank Examples Set the Thermostat to the current time of 2 16 pm on Saturday Refer to the Steps below STEP 1 qme Pre
5. LACES Description KJR 25B Heat Pump No Aux or Emergency Heat Yes Heat Pump with Aux or Emergency Heat Yes Standard Heat amp Cooling Systems Yes Two Stage Heat amp Two Stage Cool Yes Standard Heat Only Systems Yes Millivolt Heat Only Systems Floor or Wall Yes Furnaces Standard Central Air Conditioning Yes Gas or Oil Heat Yes Electric Furnace Yes Hydronic Hot Water Zone Heat 2 Wires Yes Hydronic Hot Water Zone Heat 3 Wires No This Thermostat will NOT control 110 220Volt systems IMPORTANT 2 Read the entire installation section of this Owner s Manual thoroughly before you begin to install or operate your Thermostat This thermostat can be used for conventional or heat pump system Please configure the thermostat according to Configuration Menu before operation REMOVE THE MYLAR LABEL FORM THE LCD DISPLAY WINDOW INSTALLATION 3 All installation is normally performed at your thermostat COMPRESSOR PROTECTION 40 The thermostat provides a 4 minutes delay after shutting of the heating or cooling system before it can be restarted This feature will prevent damage to your compressor caused by rapid cycling Note that this delay also applies to the heating system control It does not provide a delay when there are power outages you can select the function on or off at the configuration TEMPERATURE RANGE 5 This thermostat can be programmed between 45 F and 95 F 7 C and 35 C However it will display room temper
6. UTO FAN DOES 1 Move Elec Gas selector to opposite position is NOT TURN ON in the correct position 2 There may be as much as 4 minute delay before the Heat or Cool system turns On wait and check Compressor protection delay 30 Check your circuit breaks and switches to ensure there is power to the system 4 Replace batteries 5 Make sure your furnace blower door is closed properly 6 Check the position of the Furnace or Heat Pump selector switches Normal O B ERRATIC DISPLAY 1 Move the battery out and then hold any key to release the rest energy Then place the battery again IF UNIT CONTINUES TO OPERATE IN THE OFF POSITION 1 Replace unit THERMOSTAT PERMANENTLY READS E1 E2 E3 EF 1 Replace unit
7. atures from 30 F to 99 F 0 C and 37 C HI will be displayed if the temperature is higher than 99 F 37 C and LO will be displayed if the temperature is lower than 30 F 0 C This thermostat will automatically cutoff in Heat mode if the temperature rises above 95 F 35 C and automatically cutoff in Cool mode if the temperature drops below 45 F 7 C NOTE if the thermostat measure a temperature over 99 F 37 C HI will be displayed on the LCD if the temperature is below 32 F 0 C and LO will be displayed on the LCD POWER FAILURE 60 Whenever the main power is interrupted or fails the battery power retains and current time This thermostat has permanent memory although you will have to reset your clock when there are power outages POWER SUPPLY 70 The thermostat shall be powered by 24 VAC and with batteries as backup BATTERY WARNING 8 Fresh alkaline batteries should provide about one year of service However when the batteries become drained BATT will alternate on the display with the current time When this message occurs install 2 new AA batteries You have approximately 1 minute to change the batteries and keep thermostat s clock Once the batteries have become too low to ensure proper operation your system will be turned off and the display will be cleared except for BATT flashing on the LCD display CAUTION Once only the BATT only display occurs th
8. e fan immediately on a call for heat If you are unsure if the heating cooling system requires the thermostat to control the fan contact a qualified heating and air conditioning service person When the thermostat is configured for Heat Pump the thermostat will always power the circulator fan on a call for heat in the HEAT mode The ELEC GAS switch must be set to match the type of Auxiliary heat your system uses for proper operation in the EMERgency mode All wiring diagrams are for typical systems only Refer to equipment manufacturers instructions for specific system wiring information Attach Thermostat Base to Wall 1 Remove the packing material from the thermostat Gently pull the cover straight off the base Forcing or prying on the thermostat will cause damage to the unit 2 Connect wires beneath terminal screws on base using appropriate wiring schematic see figs 2 through 4 3 Place base over hole in wall and mark mounting hole locations on wall using base as a template 4 Move base out of the way Drill mounting holes 5 Fasten base loosely to wall as shown in fig 1 using two mounting screws Place a level against bottom of base adjust until level and then tighten screws Leveling is for appearance only and will not affect thermostat 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 6 Push exc
9. e thermostat is shut A down and your system will no longer operate In this condition NOTE The backlight will not function when the thermostat is in low battery condition there is no temperature control of your dwelling NOTE If you plan to be away from the premises over 30 days we recommend that you replace the old batteries with new alkaline batteries prior to leaving INSTALLATION What You Need This thermostat includes two 8 slotted screws and two wall anchors for mounting To install your thermostat you should have the following tools and materials m Slotted Screwdriver s m Small Philips screwdriver m Hammer m Electric drill and 3 16 bit included CAUTION To prevent electrical shock and or equipment damage disconnect m Two1 5V AA size alkaline batteries electric power to system at main fuse or circuit breaker box until installation is complete Before removing wires from old thermostat s switching subbase label each wire with the terminal designation it was removed from 1 Shut off electricity at the main fuse box until installation is complete Ensure that electrical power is disconnected 2 Remove Old Thermostat A standard heat cool thermostat consists of three basic parts a The cover which may be either a snap on or hinge type b The base which is removed by loosening all captive screws c The switching subbase which is removed by unscrewing the mounting screws that hold it on the wall
10. ed on along with normal TE operation of your system In a normal gas or oil furnace the Fan will be turned on by your furnace after its warm up delay For electric heat air conditioning and heat pump operation the Fan will turn on with the system To run the Fan on continuously slide the Fan switch to the ON position Energy Monitor ener m The Energy monitor feature measures and stores D iO 26 Monday Last Week last Monday through Sunday and Total up to the amount of time the heating and air conditioning system operates Usage can be display for Today since 12 am Yesterday This Week since 999 Hrs By monitoring your energy usage you see how much the set back periods are saving To review energy usage press to cycle through Today Yesterday this Week Last Week and Total Press again to return to normal mode or wait 15 seconds for the display to return to normal mode You can also return to normal mode at any time by pressing RUN m For example This LCD display shows Today s usage to be 10 Hours oat 26 minutes m Press and hold for 3 seconds to reset the Energy Monitor s counters The display will blink and counters will be cleared to zero NOTE Clearing the Energy Monitor counter will also clear the Filter Monitor counter as Filter usage and Total Energy usage are the same Also clearing the filter Monitor counter will clear ALL Energy Monitor counters as well Filter Monitor Your thermostat also keep
11. em If you have a two transformer system cut and tape off one transformer If transformer safety circuits are in only one of the systems remove the transformer of the system with NO safety circuits If required replace remaining transformer with a 75VA Class Il transformer After disconnecting one transformer the two commons must be jumpered together Use the terminal output information below to help you wire the thermostat properly for your heat pump system After wiring see CONFIGURATION section for proper thermostat configuration THERMOSTAT TERMINALS HEAT PUMP SYSTEM Heat Pump 1 Heat Pump 2 L Malfunction C 24 Volt Common R 24 Volt Emergency hot E W1 Emergency Mode 1st stage W2 HP 1 and Emergency 2nd stage Y1 Heat and Cool mode 1st stage compressor Y2 No output 2nd stage compressor G Blower Fan Energized on call for Heat and Cool Set GAS ELEC switch for Emergency mode Energized in Cool Mode B Energized in Heat Emergency mode ae Ge l e Energized in Energized in Stage 2 Stage 1 vey emege Gomer Fam ee Mode Stage 1 Relay stage 2 Figure 5 Typical wiring diagram for single transformer multi stage systems CHECK THERMOSTAT OPERATION Note To prevent static discharge problems touch side of thermostat to release static build up before touching any keys If at any time during testing your system does not operate properly contact a qualified service
12. ery problem the thermostat will enter Error Mode In this condition the thermostat flashes E1 E2 E3 or E4 on the LCD display and shuts off your system To correct this problem replace the batteries with 2 new AA alkaline batteries even if you have recently Eg replaced them Move the battery out and then hold any key to release the rest energy Then place the battery again You will need confirm normal operation If Error Mode returns please call us for further information Led display information E1 Sensor Error E2 System switch Error E3 No use E4 E2 memory Error Warning Mode If the SYSTEM MONITOR SWITCH is close show the system have wrong the thermostat flashs E5 on the w 700 LCD display Auto Cut Off E 5 i Your thermostat will automatically cutoff in Heat mode if the room temperature rises above 95 F 35 C It will cutoff in Cool mode if the room temperature drops below 40 F 4 C Note that if your system has malfunctioned and no longer responds to thermostat controls the Auto Cut Off will have no effect TROUBLESHOOTING Problem Solution SCRAMBLED OR DOUBLE DISPLAY numbers over 1 Remove clear mylar sticker numbers NO DISPLAY 1 Check battery connections and batteries 2 Move the battery out and then hold any key to release the rest energy Then place the battery again ENTIRE DISPLAY 1 Replace Batteries DIMS A
13. ess wire into wall and plug hole with a fireresistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation _ Eg EN Mounting Mountin Hole g Hole SSS D Figure 2 Thermostat base Reversing Reversing 2nd Stage Valve Valve Compressor Fan Emergency Energized in Energized in Relay Heat Cool Mode Heat Compressor Aux Relay TRANSFORMER 3 Heat Class Current Limited Emergency Contactor Mode Relay Hot 420 VAC Neutral 24 vac Figure 3 Typical wiring diagram for single transformer heat pump systems Reversing Reversing 2nd Stage Valve falve Compressor Fan Energized in Energized in Relay vic CoolMode Heal Compressor Aux Relay Emergency Contactor Heat Mode Relay Limit or Safety Switches TRANSFORMER Class Current Limited Emergency Heat 24vac 120 VAC A Neutral Figure 4 Typical wiring diagram for two transformer heat pump systems with NO safety circuits Figure 5 Typical wiring diagram for two transformer heat pump systems with safety circuits in BOTH systems Heat Pump Terminal Outputs Refer to equipment manufacturers instructions for specific system wiring information You can configure the thermostat for use with the following heat pump system types HEAT PUMP TYPE 1 1 Single stage compressor system gas or electric backup This thermostat is designed to operate a single transformer syst
14. one stage 2 2 n ff Span one stage 3 Backlight BackLight on 2 4 F Button BackLight off Span Two Stage 1 Span Two Stage 2 Span Two Stage 3 Selects Compressor Lockout ON 2 This model must select 2 1 Just use for one stage system oo Display normal Use for another model FACT 0 1 to go back to factory 2 All the setting will go back to factory default default The configuration menu allows you to set certain thermostat operating Backlight Button Selects temperature Backlight display F Button Selects temperature display C Selects time format Backlight display 12hours HOUR 12 Button Selects time format display 24hours Selects Compressor Backlight Lockout OFF Button COMP OFF Backlight Button coola Backlight Button Oo characteristics to your system or personal requirements The configuration menu table summarizes the configuration options An explanation of each option follows Press Backlight button to change to the next menu item To exit the menu and return to the normal operation press Run key If no keys are pressed within fifteen Seconds the thermostat will revert to normal operation 1 Single Stage Multi stage or Heat Pump System Configuration This control can be configured for Heat Pump or two stage heat one stage cool multi stage operation The display indicates MS2 default for multi stage mode in the display The Multi stage configuration can be
15. person Fan Operation If your system does not have a G terminal connection skip to Heating System 1 Turn on power to system 2 Move FAN switch to ON position The blower should begin to operate 3 Move FAN switch to AUTO position The blower should stop immediately Heating System 1 Move system switch to heat mode If the auxiliary heating system has a standing pilot be sure to light it 2 Press to adjust thermostat setting to 1 C above room temperature The heating system should begin to operate The display should show STG1 However if the setpoint temperature display is flashing the compressor lockout feature is operating see Configuration menu item 5 3 Adjust temperature setting to 3 above room temperature If your system configuration is set at MS2 HP2 or HP1 the auxiliary heat system should begin to operate and the display should show STG1 2 4 Press to adjust the thermostat below room temperature The heating system should stop operating Emergency System EMER bypasses the Heat Pump to use the heat source wired to terminal E on the thermostat EMER is typically used when compressor operation is not desired or you prefer back up heat only 1 Press SYSTEM switch to select Heat mode then press EMER key EMER will show on the display 2 Press to adjust thermostat setting above room temperature The Aux heating system will begin to operate The display will show STG1 EMER to indicate that the
16. s a record of the number of hours your filter has been in use To maximize your FiLT system s performance and energy efficiency change or clear your filter regularly m When the total system run time for heat and cool reaches 500 hours you need clean or change your system s filter FILT will continue to flash until the counter is set back to zero m Press to review total filter usage The display will blink After 15seconds the display will return to normal mode or 4 iG cB The Filter Monitor will display up to 999 hours and 59 minutes of usage In FILT Then show the filter Monitor counter you can hit RUN to exit immediately this example the counter is at 410 Hours 26 minutes m To reset the Filter Monitor counter depress FILTER for 3 seconds The display will blink and the counter will be reset to zero NOTE Clearing the Filter Monitor counter will also clear ALL Energy Monitor counters as Filter usage and Total Energy usage are the same Also clearing the Energy Monitor counters will clear the Filter Monitor counter as well Keyboard lock The keyboard can be locked to prevent unauthorized LOCK jal WY e changes to the thermostat i To lock or unlock the keyboard press and hold run Key for 3 seconds The keyboard is locked when LOCK appears on the display m All keys are locked Any time a key is pressed LOCK will appear on the display for 1 second Backlighting _ Your
17. ss to enter time and day setting mode a The current hour and the AM PM indicator will eau be flashing Gd e Press up or down to change the Hour up or down to the current hour Note the AM PM indicator as the display will change at 12AM and 12PM STEP 2 Se e Press again to change from hour setting to i 200 minute setting The current minute will be AT A flashing RZ e Press up or down to change the Minute up or down to the current minute STEP 3 e Press again to change from minute setting to Sm Bg TIME A day setting The current days will be flashing e Press up or down to change the Day up or down to the current day STEP 4 TME e Press again to change back to the normal sat ib a w display Reviewing the Current Temperature Setting Current time and temperature S30 AY m Press less than 1 second mf nil m Set Temperature is shown above current room temperature OPERATION System Selector Switch The System Selector Switch on the front of the thermostat system determines the Operating mode of the thermostat You may select COOL OFF HEAT In order to take full advantage of Sool heat this thermostat s feature NOTE Anytime you install or remove the thermostat form the wallplate slide the System Selector to the OFF position to prevent the possibility of a rapid system On Off Fan Switch The Fan switch should normally be located in the AUTO gi position The Fan will be turn
18. thermostat has an electroluminescent lamp that backlights the display for easy viewing in the dark When any key is pressed the display is illuminated The display will remain illuminated for 8 seconds after the last key is pressed This allows the light to stay on if you need to operate several keys NOTE If the thermostat is in Low Battery warning condition the backlight will not operate Replace with 2 new AA alkaline batteries to restore the Backlight function Low Battery Warning Your thermostat has a two stage lower battery warning system When the batteries are first detected to be weak the first stage low battery warning is indicated by BATT flashing on the LCD display At your earliest convenience you need to replace the batteries with 3A TT 2 new AA alkaline batteries When the batteries become too weak for normal operation the thermostat enters the second stage low battery warning which shuts down the thermostat In this condition BATT flashes alone on the display and the thermostat will turn your system Off Your system will remain shut off until the batteries are replaced NOTE The thermostat will still keep the current Set Temperature and Filter run time in memory until new batteries are installed After confirming that new batteries have been inserted the thermostat will return to normal operation Error Mode If the thermostat is unable to control your system due to a 700 El an unexpected batt
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