
PRO TH4110B Programmable Thermostat
5
Typical 1H/1C system: 1 transformer
Typical 1H/1C system: 2 transformers
Power supply. Provide disconnect means and overload protection as required.
Factory-installed jumper. Remove for 2-transformer systems only.
Use either
O
or
B
terminals for changeover valve.
Use a small piece of wire (not supplied) to connect
W
and
Y
terminals.
Set fan operation switch to
Heat Pump
(see page 6) and configure for heat pump (see pg. 8).
Remove jumper
Wiring diagrams
Typical 1H/1C heat pump system
Typical heat-only system
Typical heat-only system with fan
Typical cool-only system
Содержание PRO TH4110B
Страница 1: ...Installation Guide TH4110B Programmable Thermostat ...
Страница 15: ......