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5.13 WALL THERMOSTAT WIRING
The furnace must be connected to a thermostat. You can use the one provided with the unit or use one that is
already installed in your home. The thermostat must be installed on an inside wall and located where it is not
likely to be affected by the draft coming from an air outlet. It must be installed at a minimum of 55 inches above
the floor. It is recommended to connect the thermostat to the furnace with a seven or eight threads wire
connecting terminals Rc, Rh (connect only one of the two terminal R if there is a jumper between Rc and Rh in
the thermostat), C, W, Y, G and O. If the thermostat is using a dry contact (powered by batteries), it is not
necessary to connect the C (common) terminal to the thermostat. Refer to the electrical diagram.
If you want to provide power to the thermostat, note that the connections may differ depending on the
thermostat: Some thermostats need Rc and C while others require Rh and C (in this case, verify the need for a
jumper between Rc and Rh in the thermostat user manual). No jumper is required with the thermostat supplied
with the furnace as the Rc and Rh are already connected together. Also, some thermostats have only the letter
R. In this case, R refers to Rh. (Connect only one of the two terminals R if there is a jumper between Rc and Rh
on the thermostat). Refer to the wiring diagram.
Summary of Contents for CADDY ALTERNA II
Page 83: ...83 12 EXPLODED VIEWS AND REPLACEMENT PARTS...
Page 84: ...84 SECTION A SECTION B...
Page 85: ...85 SECTION C SECTION D...
Page 86: ...86 SECTION E SECTION F...
Page 87: ...87 SECTION G SECTION H...
Page 88: ...88 SECTION I SECTION J...
Page 89: ...89 SECTION K SECTION L...
Page 90: ...90 SECTION M SECTION N...
Page 91: ...91 SECTION O...
Page 92: ...92 HARNESS SECTION...
Page 93: ...93...
Page 94: ...94 TELECOMMUNICATION WIRES SECTION...
Page 95: ...95...
Page 96: ...96...
Page 97: ...97...
Page 101: ...101 13 GENERAL ELECTRIC DIAGRAM...
Page 104: ...104 15 3 HOT WATER OPTION 15 4 24V ADDITIONAL EQUIPMENT 15 5 AIR CONDITIONING DAMPER...
Page 105: ...105 15 6 HUMIDIFIER 15 7 HEAT PUMP...