P
14
P
13
If you have a heat pump with
Auxiliary heat, the new sequential
staging will give you faster recovery
from set backs. The thermostat can
be configured for Electric aux or
gas/oil aux heat (see installation). If
the heat pump cannot maintain your
desired room temperature, the new
system allows the Aux heat to help
maintain your heat all the way to
your desired room temperature.
When using a heat pump with Auxiliary heat, if the heat pump is not working, you can
move the large jumper 3 from B (lower) HEAT PUMP position to the A (upper) AUX ONLY
position (reset is not necessary). The Auxiliary heat will then be your only source of heat.
When the heat pump is again operational, be sure to change jumper 3 back to the B
position as the Auxiliary heat is more expensive than the heat pump.
Heat Pump Features
This thermostat can be used with all millivolt and 24VAC heating and cooling systems.
It cannot be used with line voltage systems. This thermostat is digital and your desired
heat or cool temperatures can be easily be set on the large touch screen with the
UP/DOWN arrows. A minimum 4 minute off time protects heating and cooling systems
from damage.
This thermostat uses a new
technique called sequential
staging for more comfort with
faster reaction to requested
temperature changes.
3M-30 Features
HEAT PUMP/
AUX ONLY
Jumper
A
B
