Radio Thermostat CT30 Install Manual
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Radio Thermostat CT30 Install Manual

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See also: Operating Manual
Install Guide CT30
Caution
• Your thermostat is a precise instrument, handle it with care.
• Turn off electricity to the HVAC system before installing or
servicing thermostat or any part of the system.
• Do not turn electricity back on until work is completed.
• Do not short (jumper) across electric terminals at the control
on the furnace or air conditioner to test the system. This may
damage the thermostat.
• All wiring must conform to local codes and ordinances.
• This thermostat is designed for use with 3AA alkaline batteries
and/or 24 volt AC C wire (or a 12-24 AC or DC source) and
millivolt gas systems. Each thermostat relay load should be
limited to 1.0 amp; higher amperage may cause damage to the
thermostat.
Caution
prevent damage to the furnace, air conditioner, and thermostat,
disconnect the power supply
can be done at the circuit breaker.
To avoid electrical shock and to
before beginning work. This
designed for
top cover
Reset
button
HVAC
selections
switches
Save
Energy
button
PM
RAD IO
1
Power Grid
LINK
status
indicator
TAR GET TEM P
bottom
cover
Wire
terminals
DAY
AUT O
F
CO OL
MENU
button
PROG
butto
Touch screen
ENGLISH
1
PG
Mode
button
Fan
button
n

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Summary of Contents for Radio Thermostat CT30

  • Page 1 Install Guide CT30 designed for Caution • Your thermostat is a precise instrument, handle it with care. top cover Reset • Turn off electricity to the HVAC system before installing or button servicing thermostat or any part of the system.
  • Page 2 A new location will require moving your wiring. For new installations and for re-locating the CT30 - follow the guidelines listed below: • Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the floor, and in a room that is used often.

  • Page 3: Remove Old Unit

    REMOVE OLD UNIT Switch OFF electricity to the HEATING and COOLING systems. Then follow these steps: • Remove cover from old thermostat. Most are snap-on types and simply pull off. Some have locking screws on the side or front. These must be loosened. DO NOT remove wires. Note the letters printed near the terminals.

  • Page 4: What Wires Do You Have

    HVAC system makers. IMPORTANT: The CT30 runs on 3 AA alkaline batteries and/or the C wire if available. If you do not have a C wire you can run a new wire from the HVAC or use a standard 12-24V [AC or DC] wall transformer.
  • Page 5 Find the step-by-step diagram for your • Select the referenece C W RH Go To Page 13 page with your wiring F r o m from 2 Wire F u r n a c e HVAC Heat diagram and set-up C W RH G C W Y RH G C W Y RH RC G...

  • Page 6: Connect Your Wires

    NOTE: If you wish you can mount the CT30 to the wall first, and then connect the wires. • The CT30 can be externally powered with a power source rated from 12V to 24V, AC or DC, at 300ma or greater. If used, connect to the C and RH terminals (no polarity).
  • Page 7 2. Position CT30 for best appearance. 3. Attach the CT30 to the wall with the screws provided. 4. If you are mounting the CT30 to sheet rock or if you are using the old mounting holes, use the plastic anchors provided.

  • Page 8: Hvac Selection

    • With all the wires connected it is time to turn the AC power back on. Do this at the breaker you used to switch it off. The CT30 will power-up in the control OFF mode. Your CT30 is not configured to...
  • Page 9 Caution Special Battery Warning Always replace the batteries as soon as the “Low Batt” flashes. The thermostat is a battery powered device, you must be responsible to replace batteries before they run out. Failure to replace batteries can result in overheating or excessive cooling of your house. •...

  • Page 10: Heat And Cool

    NOTE: For 2 stage systems your CT30 can recover from a temperature setback in 2 ways: 1] Fast Recovery - This uses your 2nd stage to bring the house to Target Temperature. This may use slightly more energy. 2] Efficient Recovery -This uses the 2nd stage to bring your house to w/in a few degrees of the Target and then uses the 1st stage to go the last bit.

  • Page 11: Test Installation

    Test Installation Follow these procedures to verify you have correctly installed the CT30. TO CHECK FAN (If you connected the G wire): Press the fan button to tur the fan ON. Verify that air is blowing from the system. Press the fan button again to return to AUTO.
  • Page 12 Congratulations, you have successfully installed your unit. Please proceed to the OPERATING Guide to initialize the CT30. IMPORTANT: If you have labeled and connected your wires and followed the correct HVAC setup, and your system still does not operate, contact technical support at Mode support@radiothermostat.com or call 1-877-602-5028 8am-...
  • Page 13 Step-by-step wiring diagrams 2 Wire Heat GAS MILLIVOLT or 24VAC system STEP 1 - Connect the R (or RH) wire to the RH terminal. This connects the heat power. STEP 2 - Connect the W wire to the W terminal. This connects the heat. STEP 3 - Set HVAC selections switches to NORMAL and GAS RADIO POWER Your heater is now connected to the 3M-30.
  • Page 14 W Y RH G 4 Wire Heat/Cool STEP 1 - Connect the W wire to the W terminal. This connects the heat. STEP 2 - Connect the Y wire to the Y terminal. This connects the cooling compressor. STEP 3 - Connect the RH or R wire to the RH terminal. This connects the power. STEP 4 - Connect the G wire to the G terminal on the Thermostat.
  • Page 15 4 Wire Heat Pump (heat/cool) without Auxiliary Heat STEP 1 - Connect O wire to the O or B wire to the B terminal. This connects the change-over valve. If you have both O and B - connect the O wire to the O terminal. WARNING: DO NOT connect B to B terminal (see wire reference under Trane for B wire terminal).
  • Page 16 2 Stage Heat and 2 stage Cool STEP 1 - Connect the W wire to the W terminal. This connects the 1st stage of HEAT. STEP 2 - Connect the W2 wire to the W2 Terminal. This connects the 2nd stage of HEAT. STEP 3 - Connect the Y wire to the Y terminal.

  • Page 17: Wire Reference Chart

    Wire Reference Chart Possible Wires What they control R or V or VR RH and RC Single power for HEAT and COOL RH or 4 RH Power for HEAT (RH not connected to RC jumper clip removed) RC Power for COOL (RH not connected to RC jumper clip removed) W Heat control W2 2nd stage HEAT or heat pump auxiliary heat W3 3rd stage HEAT or 2nd stage of 2 stage auxiliary heat...
  • Page 18 Lennox Heat Pump V or VR or R RH Power for HEAT M or Y Y COOL control Y or W or W2 W2 2nd stage HEAT F or G G Fan control R or O X or X2 Trane Products [American Standard] C 24VAC power (to power thermostat ) W or W1 W2 2nd stage HEAT...
  • Page 19 Notes on your system...

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