Aprilaire 8353 Thermostat User Manual
Contents
1. Place COOL OFF HEAT In OFF position COOL OFF HEAT 3 Cocococo FAN AUTO ON 3 Place FAN AUTO ON switch Into AUTO position Cc 4 Remove the cover using a coin or screwdriver Figure 2 5 Place thermostat against the wall at desired location Make sure wires will feed through opening on base of thermostat 6 Mark placement of mounting holes See Fig 3 Set base aside Figure 3 n MOUNTING HOLES 7 Drill the marked holes using a 3 16 drill bit Note Enclosed plastic anchors do not require a drilled hole for drywall 8 Tap plastic anchors into the wall 9 Align base with plastic anchors and feed wires through opening See Fig 4 Figure 4 10 Secure base to wall with supplied screws 11 Connect wires to terminal strip Refer to wiring diagrams on other side of this sheet Make sure wire connections are secure 12 Place fan option switch into either the ELEC or GAS position depending upon the type of furnace Refer to Figure 5 Figure 5 FAN OPTION SWITCH Elec Controls m Gas fan delay M 13 Install two AA ENERGIZER brand batteries or equivalent into battery compartment Be sure to match positive ends of batteries with positive battery terminals in the battery compartment The display will show as follows 14 Replace cover onto thermostat by snapping in2. HEAT winter settings NOTE Both summer and winter programs use the same time settings ex Your thermostat is now programmed for summer and winter operation It will follow the four settings MORN DAY EVE NITE for weekday operation and two settings MORN and NITE for weekend operation Adjust the program at any time by following the steps as outlined above Begin Programmed Operation 1 Place FAN AUTO ON switch FANVAUTO ON Into AUTO Cs pe VD Coc c c5 c COOL OFF HEAT CE SUMMER 2 Place COOL OFF HEAT switch Into COOL or HEAT Depending upon the season COOL OFF HEAT 0G 3 Press PROG MAN button until indicator is in PROG position ee Ca Aprilaire iT PROG MAN DC c c2c 5 e gt PROG MAN Temporary Program Override To temporarily increase or decrease temperature Press Vor A rilaire m Aprilaire MAN J v AM SET PROG MAN COOL OFF HEAT FAN AUTO ON Cc Ccccoco5 ao The thermostat will automatically return to the program at the next scheduled setting change or after four hours Manual Operation Manual operation allows continuous override of the program settings 1 Press PROG MAN until indicator is in MAN position m Aprilaire Re PROG AP PROG MAN gt MAN COCoO 0co as c 22 2 Press V or Ato adjust v temperature settin
3. heating shutdown if temperature exceeds 90 F 32 C Replacing Existing Thermostat 1 Turn off power to heating and cooling system 2 Remove cover of old thermostat to expose wires Do not disconnect wires Fig 1 3 Label wires per Table 1 Table 1 Old Label New Label Description M 4 RH R5 or R RH Heat Transformer hot side V or RC RC Cooling Transformer hot side Y or Y6 Y Cooling control H W or 4 WwW Heating control For G G Fan control relay C Y or None Either cooling control or common side of trans former 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 cap the wire and tuck into the wall If it is the cooling control connect to the Y terminal 4 After labeling wires remove wires from terminals 5 Remove existing thermostat base from wall 6 Refer to the following section for instructions on how to install thermostat Figure 1 Aa Installing the Model 8353 Thermostat NOTE For new installations mount thermostat on inside wall 4 5 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 places will affect thermostat operation 1 Turn power off to the heating and cooling systems 2
4. 8 257 8801 Monday Friday 7 45 am 5 00 pm CST Wiring Diagrams The following is just a sample of the most common types of HVAC sys tems Refer to your systems installation manual for wiring information HEAT COOL HEAT ONLY 4 WIR 3 WIRE SINGLE TRANSFORMER SINGLE TRANSFORMER Factory Installed jumper J gt 0 0S DIMI Factory Installed T H E R M Oo S T A F HEAT ONLY 2 WIRE SINGLE TRANSFORMER SWIRE SINGLE TRANSFORMER NOTE Remove factory installed jumper NOTE Remove factory installed jumper E Ee Control His A 4o0o0zumid HEAT COOL 5 WIRE TWO TRANSFORMER HEATING NOTE Cut center of factory installed jumper and bend back Transformer NOTE Both transformers must be in phase COOLING Transformer Limited Warranty Your Research Products Corporation Aprilaire Thermostat unit is expressly warranted for two 2 years from date of installation to be free from defects in materials and workmanship Research Products Corporation s exclusive obligation under this warranty shall be to supply without charge a replacement for any thermostat which is found to be defective within a two 2 year period and which is returned together with the date of installation no later than thirty 30 days after said two 2 year period by you to either your original supplier or to Research Products Corporation Madison Wisconsin 53701 THIS WARRANTY SHALL NOT OBLI
5. GATE RESEARCH PRODUCTS CORPO RATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CON TRASTED TO DEFECTS IN THE THERMOSTAT ITSELF IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PAR TICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID TWO YEAR PERIOD RESEARCH PRODUCTS CORPORATION S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES OTHER THAN DAMAGES FOR PERSONAL INJURIES RESULTING FROM ANY BREACH OF THE AFORE SAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED THIS LIMITED WARRANTY IS VOID IF DEFECT S RESULT FROM FAILURE TO HAVE THIS THERMOSTAT INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above exclusion or limitations 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 ep RESEARCH PRODUCTS corporation PO BOX 1467 MADISON WI 53701 1467 Products For Better Indoor Air Quality B2202517 REV 12 00 12
6. gs Reset To reset the thermostat to factory pre programmed conditions press the reset button located directly to the right of the display RESET BUTTON To Test Thermostat WARNING DO NOT SHORT JUMPER ACROSS TERMINALS OF GAS VALVE OR SYSTEM CONTROL TO TEST OPERATION THIS WILL DAM AGE THE THERMOSTAT AND VOID YOUR WARRANTY CAUTION Do not switch system to cool if the temperature is below 50 F 10 C This can damage the air conditioning system and cause personal injury COOL OFF HEAT 1 Place the COOL OFF HEAT switch into the COOL position CD 2 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 NOTE There is a built in 5 minute delay on break for compressor protection A second attempt to turn on the air conditioning will result in a 5 minute delay in compressor activation 3 Put the COOL OFF HEAT switch into COOL OFF HEAT the OFF position The air conditioning system should turn off The fan may a continue to run for a short period of time COOL OFF HEAT 4 Put the COOL OFF HEAT switch into the HEAT position 5 Press the button until the temperature setting is at least 3 degrees above room temperature The heating system should turn on The fan may not turn on immediately depending upon the fan delay built into the furnace 6 Put the COOL OFF HEAT switc
7. h COOL OFF HEAT into the OFF position The heating system should turn off Once again the fan may have a delay 7 Putthe FAN AUTO ON switch FAN AUTO ON to the ON position The blower RM fan should turn on 8 Put the FAN AUTO ON switch FAN AUTO ON to the AUTO position The blower mm fan should turn off CC Troubleshooting Symptom Remedy Thermostat does not turn on system Check Wiring see INSTALLATION Check fuse Replace with 2 amp Slo Blo fuse if fuse has opened Thermostat turns on and off too frequently Increase Temperature Differential see PROGRAMMING Display is blank flashing or constant LO BAT Replace batteries Weekend Program follows four adjustment settings Verify that day of week is set correctly see PROGRAMMING System fan does not operate properly Move fan option switch to either gas or electric to match system see INSTALLATION Time shown on display is not the current time of day Change time of day setting see PROGRAMMING Thermostat does not follow program Thermostat in MANUAL mode see PROGRAMMING Thermostat may not have been programmed in HEAT or COOL position Verify program Check AM PM indicators at time of day and programmed time changes see PROGRAMMING Verify program and day of week is correct see PROGRAMMING If problems with thermostat cannot be solved call Technical Support 60
8. rilaire ELECTRONIC THERMOSTATS l MODEL 8353 Em Ta Electric Gas fA rr CE Users Manual Installation and Programming Installation Guide IMPORTANT SAFETY INFORMATION WARNING e Always turn off power at the main power source by unscrewing fuse or switching circuit breaker to the off position before installing removing cleaning or servicing thermostat e Read all of the information in this manual before installing or programming this thermostat e This is a 24V AC low voltage thermostat Do not install on voltages higher than 30V AC e All wiring must conform to local and national building and electrical codes and ordinances e 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 Features Four setpoints for weekday programming two setpoints for weekend comfort Two AA ENERGIZER brand batteries retain program memory even during power outages Low battery indicator Fahrenheit Celsius display option Programmable from 45 F 4 C to 90 F 32 C Accuracy within 1 degree Adjustable temperature differential 1 3 degrees Maintains summer and winter programming Low temperature freeze protection While in heat mode thermostat will mechanically turn on heat if temperature drops to 40 F 4 C even if batteries are missing or drained Automatic
9. to place 15 Turn on power to system Test thermostat as described in the following section Programming Guide Set Time of Day Day of Week Temperature Differential 1 Press amp Hold SET Press PROG MAN Release simultaneously SET PROG MAN COC coo o c COC 2 Press V or A to change Time of Day 3 Press 4 Press SET v Co COC To Change Day of Week 5 Press 6 Press SET v C COC To change Temperature Differential The Temperature Differential is Factory preset at 1 This means that whenever the room temperature changes by one full degree from the temperature setting the system will turn on If the system turns on too often increase the temperature differential 7 Press SET to finish Changing Fahrenheit F to Celsius C Press and Hold SET Press SET E C 0 Release both simultaneously Setting Daily Programming 1 Place COOL OFF HEAT switch in COOL position COOL OFF HEAT CD Seco es c SET PF ICC 2 Press SET e 3 Press Vor A to change pv MORN time in 30 minute CIC intervals 4 Press SET C Aprilaire SET PI J CX I Soco c 5 Press V or A to change CIC MORN temperature aia 6 Repeat Steps 2 5 for DAY EVE and NITE COOL OFF HEAT 7 Press SET to finish 8 Shift COOL OFF HEAT switch to HEAT position 9 Repeat steps 2 7 to program
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