Pg 1 english 1202-003-003 power grid status indicator top cover touch screen wire terminals mode button button menu reset button hvac selections switches bottom cover install guide ct101 caution • your thermostat is a precise instrument, handle it with care. • turn off electricity to the hvac system...
Pg 2 tools you will need a small phillips screwdriver and a drill with 3/16-in. (4.8mm) bit for wall mounts. Location replacement installations - mount the ct101 in place of the old thermostat. A new location will require moving your wiring. For new installations and relocating the ct101 - follow th...
Pg 2 pg 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 p...
Pg 4 what wires do you have? Make sure your wires are labeled. This may require you to find the ‘other end’ connection for each wire on your heating or air conditioning equipment and read the label there. Refer to the wire reference page at end of install section for better understanding of wire lab...
Pg 4 pg 5 find the step-by-step diagram for your system • select the referenece page with your wiring diagram and set-up information below. • the c-wire is optional but prefered for all installations [shown dotted in diagrams]. • hot water systems accessoroes are on page 16 • if your combination of ...
Pg 6 • “fan out” wires as illustrated with ct101 below the wall opening. As in the example: fan out the wires so that the c wire is above the c terminal, the w above the w. This allows the ct101 to fit snug to the wall. Caution do not allow wires to touch each other or parts on thermostat. • positio...
Pg 6 pg 7 mount the 101 to wall 1. Hold the ct101 against the wall, with the wires coming over the top; above terminal block. The ct101 will cover the hole in the wall. 2. Position ct101 for best appearance. 3. Attach the ct101 to the wall with the screws provided. 4. If you are mounting the ct101 t...
Pg 8 hvac selection • set the hvac type switch in the norm position if you have conventional natural gas, propane, oil, or electric heat. If you have a heat pump system set the hvac type switch to hp. They are located in the battery compatrment. • set the heat type switch in the gas position if you ...
Pg 8 pg 9 caution special thermostat battery cautions 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 cool...
Pg 10 hvac setup on screen important: make sure the ct101 is powered up and the mode is set to off. Hvac selection switches must be set first [pg 8]. • with mode in off press menu and touch hvac set up. • use +/- icons to select hvac set up number on screen. The lcd display will show your selection ...
Pg 10 pg 11 test installation follow these procedures to verify you have correctly installed the ct101. To check fan (if you connected the g wire): touch the fan icon on the home screen to turn the fan on. Verify that air is blowing from the system. Touch the fan icon again to return to auto. To che...
Pg 12 congratulations, you have successfully installed your unit. Please proceed to the operating guide to initialize the ct101. 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. Statement o...
Pg 12 pg 13 step-by-step wiring diagrams wires 3 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 - connect the c wire to the c terminal. Your he...
Pg 14 w y rh g wires 5 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...
Pg 14 pg 15 cool. Step 1 - connect the w, w2 wires to the w terminals. This connects the stages of heat. Step 2 - connect the y and y2 wires to the y terminals. This connects the stages of cool. Step 3 - step 5 - connect the rh or r wire to the rh terminal. This connects the power. Step 4 - connect ...
Pg 16 aux heat the ct101 can handle up to 2 stages of pump compression and 2 stages of aux heat. Step 1 - connect o wire to the o terminal or b wire to the b. This connects the change-over valve. If you have both o and b - connect only the o wire to the o terminal and do not connect b to b terminal ...
Pg 16 pg 17 wire reference table 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 rc power for cool (rh not connected to rc jumper clip removed) w w heat control w2 w2 2nd stage heat or he...
Pg 18 wire reference cont. Possible wires what they control 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 o x or x2 or c c trane products [american standard] b c 24vac power (to power thermostat) w or w1 w2 2nd stage ...
Pg 18 pg 19 fcc warning: changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Note: this equipment has been tested and found to comply with the limits for a class b digital device, pursuant to p...
