4500 Thermostat Installation Instructions
3-4
If you are installing the 4500 in a heat only system, the setup will look like
Figure 4 below.
R
Heat (W)
Fan (G)
R
Heat (W)
Fan (G)
PREMISES
THERMOSTAT
4286
PHONE
MODULE
IN
OUT WG
4500
THERMOSTAT
68 53
HVAC
System
Figure 4. 4500 Thermostat with Heating System Only
Some heating systems, such as the forced-air type, have a fan (connections
are shown). Other heat-only systems may not include a fan, in which case
the fan connections are not used.
If you are installing the 4500 in a cooling only system, the setup will look like
Figure 5 below.
Rc
Cool (Y)
Fan (G)
Rc
Cool (Y)
Fan (G)
PREMISES
THERMOSTAT
4286
PHONE
MODULE
IN
OUT YG
4500
THERMOSTAT
78 54
HVAC
System
Figure 5. 4500 Thermostat with Cooling System Only