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Installing item 8625 thermostat, Warning, Figure 2 – Robertshaw 8625-1 User Manual

Page 3

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WARNING:

In heat pump applications, do not connect anything to the W1
terminal. When switched to HP mode, W1 is connected internally
to Y1 on the thermostat. Connect AUX heat to the W2/E terminal.

1. Turn off power to heating and cooling system.

2. Remove cover of old thermostat to expose wires. Do not

disconnect wires. (See Figure 1)

3. Label wires per the Wiring Table.

4. After labeling wires, remove wires from terminals.

5. Remove existing thermostat base from wall.

6. Refer to the following section for instructions on how to

install thermostat.

Figure 1

Installing Item 8625 Thermostat

NOTE: F

OR NEW INSTALLATIONS

,

MOUNT THERMOSTAT ON AN INSIDE WALL

, 4-5

FEET

ABOVE THE FLOOR

. D

O NOT INSTALL BEHIND A DOOR

,

IN A CORNER

,

NEAR AIR VENTS

,

IN DIRECT SUNLIGHT

,

OR NEAR ANY HEAT OR STEAM GENERATING FIXTURES

. I

NSTALLATION

AT THESE PLACES WILL AFFECT THERMOSTAT OPERATION

.

1. Turn power off to the heating and cooling systems.

2. Place EMER-HEAT-OFF-COOL in OFF position.

3. Place AUTO

ON switch

into AUTO position.

4. Remove the cover using a coin

or screwdriver (see Figure 2).

5. Place thermostat against the

wall at desired location. Make
sure wires will feed through
opening on base of thermostat.

3

heat o

ff co

ol

hold

vac

prog

run/s

et

hold

temp

cloc

k

set

auto

on

MON

°

F

select

set

select

set

hold

vac

prog temp

MON

°

F

on

auto

cool

off

emer heat

MON

°

F

on

auto

cool

off

emer heat

Figure 2

!

110-1166 6/8/05 9:15 AM Page 3