atMPORTANT
SAFETY
INFORMAT|ON
WARNTNG:
.
Always turn off
power
at main fuse
or circuit breaker
panel
before
installing, removing, cleaning, or servicing
thermostat.
.
Read all the
information in
this manual
before installing
this thermostat.
.
D0 NOT CONNECTT0 120VAC. This is
a 24 VAC
low-vottaoe
thermostat.
Do not install
on
voltages
higher
than
30 VAC.
-
.
All wiring must conform
to local and national
building
and electrical
codes and ordinances.
.
Do not short(jumperl
acrossterminals on the
gas
valve
or atthe
system
control to test
installation.
This will
damage the thermostat
and
void
the warranty.
.
Do not
connect
ground
to any terminal in this
unit.
Recycling
Thermostat
lf
this thermostat REPLACES
a thermostat
that contains
mercury,
D0 N0T discard the
old thermostat in
the regular trash.
MercurV
is harmful to humans
and the
environment. For this reason, do
not
open,
break,
or crush the mercury
cell.
lf mercury leaks from
a damaged cell, D0 N0T touch
or handle mercury
with bare
hands. Use
protective,
non-absorbent gloves
to
place
mercury
into a
sealable container. Fill the
container
with
sand or another
absorbent material and seal the
container completely-
Return
the mercury or mercury
products,
in
a sealed container, to
Invensys Climate
Controls or a local recycling center for
proper
disposal. lf
you
have any
questions,
call Robertshaw technical
support
at
1
-800-445-8299.
Invensys Climate Controls
28C Leigh Fisher Blvd.
El Paso,
TX 79906
Attn: Mercury
Recycling Center
Step 1: Replacing Existing
Thermostat
Wiring Table
Old Terminal New Label Description
R, V-VR or VR-R
24VAC, return
Y, YI, M
Compressor relay
{Stage
1
)
0orR
Reversing valve
(cool
active)
Reversing valve
(heat
active)
ForG
Fan control
relay
2"d
stage
cooling circuit
W2,
W-U or
E 2"' stage heating control
or
emergency heating for
heat
pumps
C,XorB
24 VAC, transformer
common
side
LorX
System monitor
WorWl 1st stage heat
-
non heat
pump
1{0TE:
THIS THERM0STAT REOUIRES A 24 VAC COMMON WIRE FOR PR0PER OPERATI0N.
1{0TE:
0l{ S0ME 0LDER M0DELS, THE C IERMII{A| CAli 8E EITHER THE C00tlllc C0l{TR0t
0R
THE
COMMOI{ SIOE OF THE TRAI{SFORMER. CHECK FURI{ACE WIRII{G DIAGRAM TO VERIFY
C
IERMII{AL.
IF IT IS THE COMMOI{ SIDE
OF THE InAI{SFORMER,
COIIIIECT TO THE C TERMIiIAL.
a
TMP0RTANT
SAFETY tNFORMATION
WARNTNG:
In
heat
pump
applications, do not
connect anything to the Wl
terminal. When
switched to HP mode, Wl is connected internally
to
Yl on the thermostat. Connect AUX heat
to the WZE terminal.
1.
Turn off
power
to heating
and cooling
system.
2.
Remove cover of old
thermostatto expose wires. Do not
disconnectwires.
(See
Figure'l)
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
ltem 8625 Thermostat
NOTE: Fon NEW
tNsTALlATroNs, MoUNT THERMosTAT
oN AN
lNstDE wlLL, 4-5 rrrr
ABovE THE FLooR. Do
NoT
rNsTAtL
BEHTND A DooR,
rN A
coRNER, NEAR AtR vENTs,
IN DIRECT SUNLIGHT/
OR
NEAR ANY
HEAT OR STEAM GENERATING FIXTURES. INSTALIATIOI'
AT THESE PLACES WILL AfFECT IHERMOSTAT OPERATION.
110-1101
As an ErurRev
SIAR@
partner,
Climate
Controls
Americas
has determined
that
this thermostat
product
meets
the
Elrenoy
Srnn'
guidelines
for
energy
efficiency"
Application
The Robertshaw
8625
is
a
multi-stage
thermostat designed to control
24 VAC heat
pump
systems.
Features
.
Large
back lit display.
.
Four
preprogrammed
Eruenoy
Srnn@ setpoints for each day ofthe week.
.
Adjustable
1" stage temperature
differential: 1.0"Fto 3.0'F
(0.5'C
to
1.5.C).
.
Adjusta
ble 2"d stage temperature differentia
l:
1 .0'F
to 6.0'F
(0.5"C
to
3.0"c).
.
Adiustable 2"d stage delay
(10-40
minutes).
.
Energy Efficient Recovery
(EERTM).
.
Residual cooling for
added air conditioning efficiency.
.
Zone comoatible
as master thermostat.
.
FahrenheiVCelsius
display option.
.
Programmable
from 45"F
(4"C)
to
90"F
(32'C).
.
Accuracywithin
t 1 degree.
.
Separate heating and cooling
programs.
GAS ELECTRIC
5-2DayProgrammable
2
Heat I 2Cool
User's Manual
Quick
Start
Installation
and
Programming
YI
1. Turn
power
offto
the heating and cooling systems.
Place EMER-HEAT-0FF-C001
in
0FF
position.
Place
*
AUTo-oN switch
into AUT0
position.
Remove
the cover using a coin
or screwdriver
(see
Figure 2).
Place thermostat against the
wall at desired location. Make
sure
wires will feed through
opening on
base
ofthermostat
tigwe 2
waE
W1
tr
(12 pages)
(64 pages)
(12 pages)
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