3-1
SECTION 3
Installing the 4500 Thermostat••••••••••••••••••••••••••••••••••••••••••
In This Section
♦ General
♦ Mounting and Installation
♦ Wiring Connections
♦ Step-by-Step Installation Instructions
♦ Setting the DIP Switch
♦ Setting the Fan Control Pins
••••••••••••••••••••••••••••••••••••••••••
General Information
The 4500 is controlled by a four-wire interface from the 4286 VIP Module and
is powered by 12VDC auxiliary power from the 4286 (which in turn is
powered by the control panel).
The 4500 has separate loops for heat, cool and fan, which connect to the
existing home HVAC system wiring.
There are up to five wires that connect the 4500 to the existing thermostat at
the premises. The user can then switch between the 4500 and the existing
thermostat using the ACTIVE/BYPASS switch previously described.
The 4500 can be used in most applications where ordinary low voltage
thermostats are used. It cannot be used for control of electric heat pumps or
line voltage systems (with 110VAC control lines). Line voltage systems can be
converted to low voltage systems with the addition of a 24 volt transforme r
and a relay to control the 110 volt power. These components are available
from home supply stores and other suppliers of heating system components.
Conversion of a 110VAC system to a 24VAC system requires a licensed
electrician
.