White Rodgers 1F72 User Manual

ATTENTION! This product does not contain mercury. How-
ever, this product may replace a unit which contains mercury.

Do not open mercury cells. If a cell becomes damaged, do not
touch any spilled mercury. Wearing non-absorbent gloves, take
up the spilled mercury and place into a container which can be
sealed. If a cell becomes damaged, the unit should be discarded.

Mercury must not be discarded in household trash. When the unit
this product is replacing is to be discarded, place in a suitable
container and return to White-Rodgers at 2895 Harrison Street,
Batesville, AR 72501-2117 for proper disposal.

www.white-rodgers.com

4

3

If your emergency or auxiliary system will energize the blower, then
jumper W906 on the thermostat base must be cut (see fig. 1).

If your emergency or auxiliary heat system requires that the
thermostat energize the fan circuit, do not cut jumper W906.

If you are unsure of your application, contact a qualified service
person.

°

°

The factory default setting for temperature display  is Fahrenheit.
If you want the temperature in Celsius, clip jumper W904.

The factory default setting is fast cycle, which cycles 1st stage at
approximately 1.2

°

F and 2nd stage 0.75

°

F. If you prefer slow

cycle, clip jump W905. The 1st stage and 2nd stage would be
1.5

°

F and 1.2

°

F respectively.

This thermostat  is set to operate with EMR. This causes the
thermostat to start the heating or cooling system early to have
the room temperature reach the program setpoint at the time
the period is to start.

To disable EMR, clip jumper W903 (see Fig. 1).

1. Remove the packing material from the thermostat. Gently pull

the cover straight off the base. Forcing or prying on the
thermostat will cause damage to the unit.

2. Connect wires beneath terminal screws on base using appro-

priate wiring schematic (see figs. 2 through 4).

3. Place base over hole in wall and mark mounting hole locations

on wall using base as a template.

4. Move base out of the way. Drill mounting holes.

5. Fasten base loosely to wall, as shown in fig. 1, using two

mounting screws. Place a level against bottom of base, adjust
until level, and then tighten screws. (Leveling is for appear-
ance only and will not affect thermostat operation.) If you are
using existing mounting holes, or if holes drilled are too large
and do not allow you to tighten base snugly, use plastic screw
anchors to secure subbase.

6. Push excess wire into wall and plug hole with a fire-resistant

material (such as fiberglass insulation) to prevent drafts from
affecting thermostat operation.

This thermostat does not require batteries to operate. The 2 “AAA”
alkaline batteries are for the thermostat to remember the pro-
gramming if AC voltage is lost. If the display shows BATT when
AC power is not present, the batteries are low and should be
replaced with fresh “AAA” Energizer

®

 alkaline batteries. To re-

place the batteries, install the batteries along the top of the base
(see fig. 1). The batteries must be installed with the positive (+)
ends to the right.

The O/B switch on this thermostat is factory set to “O” position.
This will accommodate the majority of heat pump applications,
which require the changeover relay to be energized in COOL. If
the thermostat you are replacing or the heat pump being installed
with this thermostat requires a “B” terminal, to energize the
changeover relay in HEAT, the O/B switch must be moved to the
“B” position.