E G O User`s Manual H
Contents
1. Correct battery placement IS As NON HP HP scone yL coco Himi mm uap HP OPTION SWITCH Heat pump switch ELECTRIC GAS SWITCH Selects fan control Figure 5 13 Make sure wire connections are secure 14 Push excess wire back through opening 15 Setthe Electric Gas switch to either GAS for a gas oil heating system or ELEC for an electric heating system Figure 5 16 Setthe HP option switch to either the HP for heat pump or NON HP for furnace applications Figure 5 17 Install two AA Energizer brand batteries or equivalent into battery compartment as shown Figure 5 18 Replace thermostat cover by snapping into place 6 Step 3 Testing the Thermostat WARNING DO NOT SHORT JUMPER ACROSS TERMINALS OF GAS VALVE OR SYSTEM CONTROL TO TEST OPERATION THIS WILL DAMAGE THE THERMOSTAT AND VOID YOUR WARRANTY CAUTION DO NOT SWITCH SYSTEM TO COOL IF THE TEMPERATURE 1 IS BELOW 50 F 10 C THIS CAN DAMAGE THE AIR CONDITIONING SYSTEM AND CAUSE PERSONAL INJURY Place the HEAT OFF COOL switch into the COOL position The will be displayed Press the V button until the temperature setting is at least 3 degrees below the room temperature The air conditioning system should turn on within a few seconds heat off cool2. 2 mo Q NON HP HP oo Yr wi N feoejo timy ma J m Figure 4 Mark placement of mounting holes Figure 4 Set base aside 7 If mounting on drywall tap plastic anchors into wall NOTE Enclosed plastic anchors do not require a drilled hole for drywall 8 If mounting on a surface other than drywall drill the marked holes using a 3 16 5mm drill bit 9 Align base with plastic anchors and feed wires through opening 10 Secure base to wall with supplied screws NOTE The thermostat will mount horizontally on a single gang junction box 11 Strip end of wires 5 16 8mm if needed 12 Terminal screws are already loose and ready for wire insertion Insert wires into terminal strip Figure 4 matching the label to the corresponding terminal see Wiring Diagrams Tighten screws Wiring Diagrams HEAT COOL 4 WIRE SINGLE TRANSFORMER Factory Installed Hot 120 VAC HEAT ONLY 2 WIRE SINGLE TRANSFORMER Transformer Hot 120 VAC za VAC A gt PAwWoOzmImIA HEAT ONLY 3 WIRE SINGLE TRANSFORMER Factory Installed Jumper Transtormer Hot 320VAC 24 VAC Hd 4doozzozmrad COOL ONLY 3 WIRE SINGLE TRANSFORMER NOTE Remove factory installed jumper Transformer A gt PaAwozmmra HEAT COOL 5 WIRE TWO
3. Display is blank flashing or constant LOW BATT Replace batteries System fan does not operate properly Move Electric Gas switch to either electric or gas to match system see Installation section Thermostat does not display proper room temperature Check F C Fahrenheit Celsius setting See Changing Fahrenheit F to Celsius C If problems with thermostat cannot be resolved call Technical Support 800 445 8299 Monday Friday 7 30 AM 5 30 PM CST 10 Two Year Limited Warranty Climate Controls Americas warrants to the original contractor installer or to the original consumer user each new Robertshaw thermostat to be free from defects in materials and workmanship under normal use and service for a period of two 2 years from date of purchase This warranty and our liability does not apply to batteries or merchandise that has been damaged by misuse neglect mishandling alterations improper installation or use in a way other than in accordance with Climate Controls Americas recommendations and instructions Climate Controls Americas agrees to repair or replace at its option any thermostat under warranty provided it is returned within the warranty period postage prepaid with proof of the date of purchase Cost of thermostat removal or reinstallation is not the responsibility of Climate Controls Americas Repair or replacement as provided under this warranty is the exclusive remedy
4. NOTE ONCE THE THERMOSTAT TURNS OFF WHEN IN THE COOL MODE 3 Putthe HEAT OFF COOL switch into the OFF A BUILT IN 5 MINUTE DELAY PREVENTS THE SYSTEM FROM TURNING ON AGAIN THIS PROTECTS THE COMPRESSOR NO ADDITIONAL TIME DELAY RELAY IS REQUIRED TO OVERRIDE THE 5 MINUTE DELAY FOR INSTALLATION PRESS THE RESET BUTTON position The air conditioning system should turn off heat off cool Put the HEAT OFF COOL switch into the HEAT position The will be displayed Press the A button until the temperature heat off cool setting is at least 3 degrees above room temperature The heating system should turn on The fan may not turn on immediately depending on the fan delay built into the furnace NOTE If HP is selected the heat will not come on until the 5 minute 6 Putthe HEAT OFF COOL switch into the OFF short cycle protection has expired position The heating system should turn off The fan may continue to run for a short period of time heat off cool Put the V AUTO ON switch into the ON position The blower fan should turn on The display will show a s auto on Putthe 9 AUTO ON switch into the AUTO position The blower fan should turn off s auto on Step 4 Customizing the Thermostat Settings System Cool The thermostat controls the cooling Off The heating and cooling systems are off Heat The thermostat controls the heat Fan Auto Equipment controls the fan On The fan operates continuou
5. TRANSFORMER HEATING Transformer Hot 420 VAC Hot 120 VAC COOLING Transformer HEAT PUMP WITH COOL ACTIVE REVERSING VALVE Transformer H 4doozozmrd NOTE Make sure the HP switch is in the HP position NOTE Disconnect factory installed jumper CAUTION Both transformers must be in phase or damage to the equipment and thermostat may result 4PAanO0zmUmMIA HEAT PUMP WITH HEAT ACTIVE REVERSING VALVE NOTE Factory Installed Jumper NOTE Factory Installed Jumper Transformer d adoozznoumriad4 NOTE Make sure the HP switch is in the HP position TERMINAL LEGEND 8400 EQUIPMENT TO CONNECT TERMINAL FUNCTION 24VAC hot connection For input of 24VAC hot side of heat transformer 24VAC hot connection For input of 24VAC hot side of cool transformer Heat connection Energizes on a call for heating Compressor Connection Energizes on a call for cooling Heat active reversing valve Energizes when in the HEAT mode Cool active reversing valve Energizes when in the COOL mode Indoor fan connection Energizes with Y1 amp W1 terminals or with FAN option switched to the ON position This thermostat can be used as a heat only or cool only thermostat therefore it is not always necessary to use both Y and W The 0 and B terminals are accessory terminals that typically are used for heat pump applications
6. of the consumer Climate Controls Americas shall not be liable for any incidental or consequential damages for breach of any express or implied warranty on this product or under any other theory of liability Except to the extent prohibited by applicable law any implied warranty of merchantability or fitness for a particular purpose on this product is limited to the duration of this warranty Some states do not allow the exclusion or limitation of incidental or consequential damages or allow limitations on how long an implied warranty lasts so the above limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state For warranty returns send thermostat shipping prepaid to Climate Controls Americas Warranty Claims Department 515 S Promenade Corona CA 91719 INVENSYS Climate Controls Americas 191 E North Avenue Carol Stream Illinois 60188 United States of America 2004 Climate Controls Americas 110 1086 11 NOTES
7. DIAGRAM TO VERIFY C TERMINAL IF IT IS THE COMMON SIDE OF THE TRANSFORMER CAP THE WIRE AND TUCK INTO THE WALL IF IT IS THE COOLING CONTROL CONNECT TO THE Y TERMINAL 2 1 Turn off power to heating and cooling system Remove cover from old thermostat to expose wires Figure 1 3 Disconnect wires one at a time from existing terminals Use enclosed labels to mark existing wires Refer to cross references in the Wiring Table if existing wiring does not directly match the labels 4 Remove existing thermostat base from wall Figure 1 Step 2 Installing Model 8400 Thermostat NOTE FOR NEW INSTALLATIONS MOUNT THERMOSTAT ON INSIDE WALL FIVE FEET ABOVE THE FLOOR DO NOT INSTALL BEHIND A DOOR IN A CORNER NEAR AIR VENTS IN DIRECT SUNLIGHT OR NEAR ANY HEAT OR STEAM GENERATING FIXTURES INSTALLATION AT THESE LOCATIONS WILL AFFECT THERMOSTAT OPERATION 1 Turn power off to the heating and cooling systems 2 Place HEAT OFF COOL in OFF position Figure 2 3 Place amp amp AUTO ON switch into AUTO position Figure 2 E E S i uz E heat off cool auto on CE J Sa EA NS P Figure 2 4 Remove the cover using a coin or screwdriver Figure 3 Set aside Figure 3 5 Place thermostat against the wall at desired location Make sure wires will feed through opening Figure 4 on base of thermostat Mounting Holes Lt e
8. VEO een THERMOSTAT E 0 amp GAS ELECTRIC OIL HEAT PUMP 1 Heat 1 Cool User s Manual Quick Start Installation Robertshaw y 110 1086 Application The Robertshaw 8400 is a single stage thermostat designed to control 24 VAC gas or electric heating and cooling systems or single stage heat pump Features Low battery indicator Large back lit display Adjustable temperature differential 1 F to 3 0 F 0 5 C to 1 5 C Compressor short cycle protection Accuracy within 1 Zone system compatible as a master thermostat Permanent memory retention Fahrenheit Celsius display option Adjustable from 45 F to 90 F 7 C 32 C Quick wire terminal block AX IMPORTANT SAFETY INFORMATION WARNING Always turn off power at main fuse or circuit breaker panel before installing removing cleaning or servicing thermostat Read all the information in this manual before installing this thermostat DO NOT CONNECT TO 120 VAC This is a 24 VAC low voltage thermostat Do not install on voltages higher than 30 VAC All wiring must conform to local and national building and electrical codes and ordinances Do not short jumper across terminals on the gas valve or at the system control to test installation This will damage the thermostat and void the warranty Do not connect ground to any terminal in this unit Ge Recycling Thermostat If this thermostat REPLACES a ther
9. mostat that contains mercury DO NOT discard the old thermostat in the regular trash Mercury is harmful to humans and the environment For this reason do not open break or crush the mercury cell If mercury leaks from a damaged cell DO NOT touch or handle mercury with bare hands Use protective non absorbent gloves to place mercury into a sealable container Fill the container with sand or another absorbent material and seal the container completely Return the mercury or mercury products in a sealed container to Invensys Climate Controls or a local recycling center for proper disposal If you have any questions call Robertshaw technical support at 1 800 445 8299 Invensys Climate Controls 28C Leigh Fisher Blvd El Paso TX 79906 Attn Mercury Recycling Center Step 1 Replacing Existing Thermostat A IMPORTANT SAFETY INFORMATION WARNING In heat pump applications do not connect anything to the W1 terminal When switched to HP mode W1 is connected internally to Y1 on the thermostat Wiring Table Old Terminal New Label Description M W Rh R5 or 5 Rh Heat transformer hot side V or Rc Rc Cool transformer hot side Y or Y6 Y1 Cooling control H W or 4 w1 Heating control ForG G Fan control relay 0 0 Cool active reversing valve B B Heat active reversing valve NOTE ON SOME OLDER MODELS THE C TERMINAL CAN BE EITHER THE COOLING CONTROL OR THE COMMON SIDE OF THE TRANSFORMER CHECK FURNACE WIRING
10. r 7 Pressthe VV to return to normal operation Check Filter Reset Once the filter timer has expired i CHECK FILTER will turn on and stay CHECK FILTER NN on To clear the message and reset ic the timer 1 Press the A and V buttons and hold for 3 seconds CLr will appear in the time display 2 Press any key to clear the message 5 The display will transition to the LLI CHECK FILTER temperature scale display as described in the previous section 3 No further input is needed Within a few seconds the display will return to the normal operating mode Backlit Display This thermostat is equipped with a backlight to make nighttime temper ature adjustments quick and easy Press the V button to activate the backlight The backlight will turn off after about 10 seconds of inactivity Reset To reset the thermostat press the RESET button located above the upper left corner of the display le Q Q L m o ba D e u lr q V 0 o us NON HP HP H ee ur Step 5 Troubleshooting Symptom Remedy Thermostat does not turn on system Check wiring see Installation section Thermostat turns system on and off too frequently Increase temperature differential see Changing the Temperature Differential section
11. sly Temperature Differential The temperature differential is factory set at 1 0 F 5 C This means that whenever the room temperature changes by one degree Fahrenheit from the temperature setting the system will turn on If the system turns on too often increase the temperature differential Changing Fahrenheit F to Celsius C the Temperature Differential and the Filter Monitor 1 The thermostat is preset to display the temperature in degrees Fahrenheit US models or degrees Celsius Canadian E models The temperature display canbe 5E AL changed Press and hold both the A and V buttons for three seconds The display will flash either an F or C Release buttons Press the A or V button to switch the display 2 Wait five seconds or press and the display will switch to the differential setting 3 The display will read diFF The tempera ture differential is factory set at 1 0 F 0 5 C Press the A or V button to adjust the differential up or down gt pv e cn am am o n BE 4 Wait five seconds or press and the display will switch to the filter monitor setting 5 CHECK FILTER and the length of hours for the filter monitor will be displayed 6 Use the A or V to adjust the filter timer Soon from 0 OFF to 9900 hours NOTE The ILI CI filter timer is based on equipment run time Select the length of time based on the recommended service interval for your filte
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