E G O User`s Manual H
Contents
1. a me L ie Q Q i B amp te E a A e NM __ u Begog scot oom J nae Figure 4 Mark placement of mounting holes Figure 4 Set base aside If mounting on drywall tap plastic anchors into wall NOTE Enclosed plastic anchors do not require a drilled hole for drywall If mounting on a surface other than drywall drill the marked holes using a 3 16 5mm drill bit Align base with plastic anchors and feed wires through opening Secure base to wall with supplied screws NOTE The thermostat will mount horizontally on a single gang junction box Strip end of wires 5 16 8mm if needed 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 Transformer te sac Bavac 4 gt awoz mmr HEAT ONLY 2 WIRE SINGLE TRANSFORMER Transformer Hot 120 VAC 28 VAC HEAT PUMP WITH COOL ACTIVE REVERSING VALVE Transformer Hot 120 VAC 24 VAC NOTE When switched to HP mode Wt is connected internally to Y1 HEAT ONLY 3 WIRE SINGLE TRANSFORMER APHWMOEUMIA COOL ONLY 3 WIRE SINGLE TRANSFORMER Transformer Hot 20 VAC2. If this thermostat REPLACES a thermostat 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 Wiring Table Old Terminal New Label Description M W Rh Re R 24VAC hot side R5 Vor 5 C XorB C 24VAC transformer common side Y or Y6 Yl 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 THIS THERMOSTAT REQUIRES A 24 VAC COMMON WIRE FOR PROPER OPERATION NOTE ON SOME OLDER MODELS THE C TERMINAL CAN BE EITHER THE COOLING CONTROL OR THE COMMON SIDE OF THE TRANSFORMER CHECK FURNACE WIRING DIAGRAM TO VERIFY C TERMINAL IF IT IS THE COMMON SIDE OF THE TRANSFORMER CONN
3. 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 filter 7 Pressthe VV to return to normal operation Check Filter Reset Once the filter timer has expired CHECK FILTER will turn on and stay on To clear the message and reset 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 The display will transition to the temperature scale display as described in the previous section CHECK FILTER ml L1 ume E CHECK FILTER 3 No further input is needed With
4. 24 vac 4A gt PaAawoz mmr HEAT PUMP WITH HEAT ACTIVE REVERSING VALVE Transformer Hot 120 VAC 24 vac NOTE When switched to HP mode W1 is connected internally to Y1 TERMINAL LEGEND 8401 EQUIPMENT TO CONNECT REQ TERMINAL FUNCTION 24VAC hot connection Yes For input of 24VAC hot connection 24VAC common connection Yes For input of 24VAC common side of 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 o di ul ej CO T O i ig 9 rus E wor vw NON HP HP a ecco um wm HP OPTION SWITCH ELECTRIC GAS SWITCH Feat pumpi switch Selects fan control Figure 5 13 Make sure wire connections are secure 14 Push excess wire back through openin
5. 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 continuously 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
6. DIGITAL 8 4 1 NON PROGRAMMABLE THERMOSTAT E 0 amp GAS ELECTRIC OIL HEAT PUMP 1 Heat 1 Cool User s Manual Quick Start Installation f haw 110 1087 Application The Robertshaw 8401 is a single stage thermostat designed to control 24 VAC gas or electric heating and cooling systems or single stage heat pump The 8401 requires the use of a common wire Features 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 amp Recycling Thermostat
7. ECT TO THE C TERMINAL AX 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 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 8401 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 heat off cool 9 auto on Figure 2 3 4 5 10 11 12 Remove the cover using a coin or screwdriver Figure 3 Set aside Figure 3 Place thermostat against the wall at desired location Make sure wires will feed through opening Figure 4 on base of thermostat Mounting Holes
8. g 15 Set the Electric Gas switch to either GAS for a gas oil heating system or ELEC for an electric heating system Figure 5 16 Set the HP option switch to either the HP for heat pump or NON_HP for furnace applications Figure 5 17 Replace thermostat cover by snapping into place 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 cool 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
9. in 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 LLL RESET switch Q NON HP HP ELEC GAS sooo ml mm J 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 System fan does not operate properly Move Electric Gas switch to either gas or electric 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 c
10. onsumer 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 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
11. 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 1087 11 NOTES
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