Table of Contents
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Install Guide 3M-50
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 3 AA alkaline
batteries and/or 24 VAC 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
and to prevent damage to the furnace, air conditioner, and
disconnect the power supply
thermostat,
beginning work. This can be done at the circuit breaker.
1005-009-001
To avoid electrical shock
before
top cover
Reset
button
HVAC
selection
switches
Save
Energy
button
Power Grid
RAD IO
status
indicator
1
LIN K
TAR GET TEM P
bottom
cover
DAY
AUT O
PM
F
CO OL
Touch screen
ENGLISH
1
PG
Wire
terminals
Mode
button
Fan
button
MENU
butto
n
PROG
butto
n
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Table of Contents
Related Manuals for Filtrete 3M-50
Summary of Contents for Filtrete 3M-50
- Page 1 Install Guide 3M-50 Caution • Your thermostat is a precise instrument, handle it with care. top cover • Turn off electricity to the HVAC system before installing or Reset button servicing thermostat or any part of the system. HVAC • Do not turn electricity back on until work is completed.
- Page 2 A new location will require moving your wiring. For new installations and relocating the 3M-50 - 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 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 HVAC system makers. IMPORTANT: The 3M-50 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 system • 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 NOTE: If you wish you can mount the 3M-50 to the wall first, and then connect the wires. • The 3M-50 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 3. Attach the 3M-50 to the wall with the screws provided. 3M-50 4. If you are mounting the 3M-50 to sheet rock or if you are using the old mounting holes, use the plastic anchors provided. 5. Mark first and drill a 3/16-in.(4.8mm) hole for the insert at each screw location, then mount the unit.
- Page 8 • 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 3M-50 will power-up in the OFF mode. Your 3M-50 is not configured to operate...
- 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. •...
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Page 10: Efficient Recovery
NOTE: For 2 stage systems your 3M-50 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 within a few degrees of the Target Temperature and then uses the 1st stage to go the last bit. - Page 11 Test Installation Follow these procedures to verify you have correctly installed the 3M-50. TO CHECK FAN (If you connected the G wire): Press the fan button to turn the fan ON. Verify that air is blowing from the system. Press the fan button again to return to AUTO.
- Page 12 This thermostat runs on 3 AA batteries. The 3M-50 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). The 24VAC “C” wire is the other side of the 24VAC heating transformer and can be found where the other thermostat wires connect at the wall or at the furnace.
- Page 13 STEP 2 - Connect the W wire to the W terminal. This connects the heat. AC SYSTEM STEP 3 - Set HVAC selection switches to NORMAL and GAS. RADIO POWER Your heater is now connected to the 3M-50. Please Go To Page 6 C H B O W W Y Y...
- Page 14 If you have gas or oil heat, set the HEAT TYPE switch to GAS. REMOTE POWER If you have electric heat, set the HEAT TYPE switch to ELEC. Your HVAC system is now connected to the 3M-50. Thermostat C H B O W...
- Page 15 STEP 4 - Connect the G wire to the G. This connects the fan. POWER STEP 5 - Set HVAC selection switch to HEAT PUMP and set the HEAT. TYPE to ELEC. Your HVAC system is now connected to the 3M-50. C B O W W Y Y RH RC G A...
- Page 16 For Solenoid valve or Motor valve connect the wires based on diagrams below to the correct terminal on the 3M-50. USE ONLY IN HEAT MODE. The third wire on your valve may be called 6, Y, or G (see page 18).
- Page 17 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 Motor Driven Valves (heat ON) R or 5 RH (power) Y or G (the 3rd wire) W (heat OFF) W or 4 W (heat ON) Y or G or 6 (the 3rd wire) A (heat OFF) Customer support: Filtrete@radiothermostat.com 888-607-5824 or www.radiothermostat.com/filtrete...