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Smart temp 42158 Installation And Operation Manual

Programmable thermostat
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Installation and
Operation manual
PROGRAMMABLE
THERMOSTAT
Model 42158
1
42711-01 08-18-08

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Summary of Contents for Smart temp 42158

  • Page 1 Installation and Operation manual PROGRAMMABLE THERMOSTAT Model 42158 42711-01 08-18-08...

  • Page 3: Table Of Contents

    Table of Contents Important Information ........5 Tools Uninstalling the Existing Unit ......7 Installing the Thermostat ........ 12 installing the wall plate ........ 12 connecting the wires ........16 attaching the thermostat ......18 Settings............22 Methods of Operation ........26 manual operation ........

  • Page 4: Programmable Thermostat

    Programmable Thermostat Programmable Thermostat Model 42158 Model 42158 Congratulations! Thank you for choosing a Smart Temp programmable thermostat. Your new Smart Temp thermostat will provide years of reliable service and year-round energy savings. Please read this manual before beginning installation and save this booklet for complete...

  • Page 5: Important Information

    240V AC Switching. If 240V Switching is required an optional Smartpak-03 interface is required. Please contact your place of purchase or Smart Temp. If you are unsure what kind of heating and cooling system you have, please contact a qualified HVAC...

  • Page 6: Tools

    ToolS This thermostat includes two #8 slotted screws and two wall anchors for mounting. To install your new thermostat, you will need the following supplies: Flat-head screwdriver ..................Small Phillips-head screwdriver ..................Hammer ..................Electric drill and 3/16” bit ..................
  • Page 7 noTiCE! Do not disconnect the wires from the existing thermostat before reading these instructions. The wires must be labeled prior to removal to ensure proper reconnection.

  • Page 9: Uninstalling The Existing Unit

    uninSTalling ThE ExiSTing uniT 1. Turn the system power OFF from the existing thermostat. Turn the power to the HVAC system OFF at the main power panel or at the furnace. 2. Remove the existing thermostat cover to access the wires from the wall. (Some thermostats may have multiple covers, screws or other locking devices that must be removed or disengaged.)

  • Page 10: Air Conditioning

    if your e xisting label the wir thermosta t is mark ed... with this stick : RH / R / VR / 4 24 V o lt RC / V C 24 V o lt co ol air conditioning Y / C* / M / O com pressor W / H / B heating...
  • Page 11 uninSTalling ThE ExiSTing uniT, ConT. 4. Using the provided stickers, label each wire according to the chart. (If the terminals are not labeled, contact a qualified HVAC technician.) note: Wire colors do not always comply with standards, so wire color should be ignored.

  • Page 13: Installing The Thermostat

    3. If the existing holes do not match those on the Smart Temp 42158 wall plate, or if there are no existing holes, visually level the wall plate and mark the wall for two holes.
  • Page 15 inSTalling ThE ThErMoSTaT, ConT. 4. Remove the wall plate and drill two 3/16” holes where marked. 5. Tap the plastic anchors into the holes until they are flush with the wall. 6. Reposition the wall plate on the wall, pulling the wires through the opening.
  • Page 16 G RC RH Y/0 W/BY1 Ter m inal Shield...

  • Page 17: Connecting The Wires

    inSTalling ThE ThErMoSTaT, ConT. ConnECTing ThE WirES 1. Loosen, but do not remove, the terminal screws. note: a jumper wire has been provided, connecting the rC and rh terminals for Jum per systems that do not provide both an rh and rC wire.
  • Page 18 Thermostat Cover ENABLE RECOVER Y DISABLE System Switch SYSTEM TYP E FAN OPTION RH Y/O W/B Y1 W/BY/O RH RC...

  • Page 19: Attaching The Thermostat

    inSTalling ThE ThErMoSTaT, ConT. aTTaChing ThE ThErMoSTaT Lift the thermostat cover and set the SYSTEM switch and the switch to AUTO. 1. Locate the on the back of the thermostat. HE/HG switch Set the switch to (default) for gas furnace and oil burners.
  • Page 21 inSTalling ThE ThErMoSTaT, ConT. 4. Place the top of the thermostat over the two tabs on the wall plate. Press the thermostat onto the wall plate and press to snap the bottom tab into place. note: Do not force the thermostat onto the wall plate, as the terminal pins may be damaged.
  • Page 22 res et...

  • Page 23: Reset Button

    SETTingS The default setting of the thermostat is Celsius(C noTiCE: Changing ThiS SETTing Will rESET ThE ThErMoSTaT To faCTorY DEfaulT prograMS. (If no button is pressed for 5 seconds, the unit will return to the Normal Display mode.) To change to Faranheit (F 1.
  • Page 24 day/time...
  • Page 25 SETTingS, ConT. The default for this thermostat setting is in a 12 hour format. You can change the format to 24 hour format by pressing and then Day/Time Program. The aM/pM indicator will be off when the thermostat is in 24 hour mode. Setting day and time: 1.
  • Page 26 HEAT...

  • Page 27: Methods Of Operation

    METhoDS of opEraTion This thermostat gives you the ability to program up to 4 custom temperature settings per day or utilize pre-programmed settings. For manual operation instructions, see pages 28-31. To utilize the pre-programmed settings, see pages 32-33. To create custom programs, see pages 34-37.
  • Page 28 HEAT...

  • Page 29: Manual Operation

    METhoDS of opEraTion, ConT. 1. Manual opEraTion Many people prefer to operate their thermostats manually, adjusting settings as needed. You can either temporarily override the settings for the current program, or permanently override all settings and adjust temperatures manually. If you want to only override the current program: 1.
  • Page 30 HOLD syst e m heat coo l hold /retur n...
  • Page 31 METhoDS of opEraTion, ConT. Manual opEraTion, ConT. If you want to permanently override all settings and adjust the thermostat manually: 1. Press until the Hold icon appears. Hold/Return 2. Press and hold for one second to Down enter Manual Override mode. (Release the button when the display flashes.) 3.
  • Page 32 DEfaulT prograMS CharT Program 4 Heat : 16 Cool : 28 Program 3 Heat : 20 Cool : 26 Program 1 Heat : 20 Cool : 26 4 pm Program 2 Heat : 16 Cool : 29...

  • Page 33: Default Programs

    METhoDS of opEraTion, ConT. 2. DEfaulT prograMS This thermostat meets ENERGY STAR guidelines for energy efficiency. By using the pre-programmed settings, this thermostat can save you money by optimizing energy usage in heating and cooling. After setting the time and temperature scale, no additional action is needed to utilize the pre- programmed settings.
  • Page 34 syst e m pro gram heat coo l hold /retur n...

  • Page 35: Creating Custom Programs

    METhoDS of opEraTion, ConT. 3. CrEaTing CuSToM prograMS • Program times can be set in 10 minute increments. • Program temperature can be set in increments of 1 C (1 • After 15 seconds of inactivity during programming, the thermostat will return to Normal Display mode.
  • Page 36 M T W TH F HEAT COOL system program heat cool hold /return...
  • Page 37 METhoDS of opEraTion, ConT. 3. Press to change the hour. Press Down to save the hour and adjust the Program minute setting. 4. Press to change the minute. Down Press to save the minute setting and Program adjust the temperature. 5.
  • Page 38 FILTER filter...

  • Page 39: Icons And Features

    iConS anD fEaTurES 1. INDIGLO Night-Light - will backlight the ® display for easy viewing in the dark. Press any button to illuminate the light. (If no button is pressed after 5 seconds, the backlight will turn off.) note: if the thermostat shows a low Battery Warning, the backlight will not operate.
  • Page 40 HEAT COOL syst e m heat coo l res et...
  • Page 41 iConS anD fEaTurES, ConT. 3. Span setting mode – allows you to adjust the system ON/OFF cycle rate. The default setting is 2 (the system cycles ON or OFF when the temperature is within 0.5 C (1 above and below the set temperature.) The span setting can be adjusted if your system is cycling too fast or too slowly.
  • Page 42 COOL STAGE 1 STAGE 2...
  • Page 43 iConS anD fEaTurES, ConT. 4. Low battery warning – indicates two stages of battery power shortage. When the batteries are detected as weak, the icon will flash until new AA alkaline batteries are installed. If the batteries become too weak for normal operation, the thermostat enters the second battery power shortage mode.
  • Page 44 hold /retur n...
  • Page 45 iConS anD fEaTurES, ConT. 5. Auto recovery – allows heating and cooling systems to gradually recover from an energy-saving setpoint temperature to a comfort setpoint temperature. Auto recovery calculates the time needed to adjust the temperature to the next program setting. When the thermostat is in Auto Recovery mode, the display will flash alternating messages of RECO and the time.
  • Page 47 iConS anD fEaTurES, ConT. 6. Error mode – indicates an unexpected battery problem. The screen will flash an ERR message and shut your system off until the batteries are replaced with new AA alkaline batteries. You must Reset and reprogram the thermostat after replacing the batteries if the thermostat has entered Error mode.

  • Page 48: Temperature Range

    1. Temperature range 37 o C 0 o C 7 o C 35 o C Out of Range Out of Range Program Range "LO" "HI" Display Range < 0 o C > 37 o C 2. Compressor protection After the system stops running in cooling mode, there will be a 3.5 minute delay before it can be restarted to prevent compressor...

  • Page 49: Wiring

    Wiring...
  • Page 50 Wiring, ConT.
  • Page 51 Wiring, ConT.

  • Page 52: Troubleshooting

    TrouBlEShooTing 1. My display will not come on. 1 a. Check batteries and battery connections. 1 b. Reset the thermostat..................2. The auto fan feature will not operate properly. 2 a. Remove the thermostat from the wall plate and set the HG/HE switch to the correct position.
  • Page 53 TrouBlEShooTing 5. My heating or cooling will not turn on or off. 5 a. Check the Heat/Cool function switch to ensure it is set to the desired position. 5 b. Wait. There may be as much as a 4-minute delay before the system turns on or off to protect the compressor.
  • Page 54 TrouBlEShooTing 7. My system continues to operate when the thermostat is in the off position. 7 a. Replace unit..................8. The LCD screen permanently reads HI, LO, or ERR. 8 a. Replace unit..................9. How do I just operate my thermostat manually? 9 a.
  • Page 55 Is there help on the web? Yes. Visit http://www.smarttemp.com.au for more information or email us at support@smarttemp.om.au ................ Smart Temp Australia Pty Ltd Unit 20, 1488 Ferntree Gully Road Knoxfield Victoria 3180 Tel (03) 9763 0094 Fax (03) 9763 0098 info@smarttemp.com.au...

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