Robertshaw 8625 User Manual download pdf (Page 2)

HEAT

ONLY

COOL ONLY

2-W|RE 3-W|RE

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SINGLETRANSFORMER

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HEAT/COOL

STAGE

6. Mark

placement

of mounting holes

(see

Figure 3). Set base aside.

7. Drillthe marked holes using a

3/16"

(5mm)

drill bit. N0TE: Enclosed

plastic

anchors do not

require

a drilled

hole for

drywall.

Wiring Diagrams

The

following is

just

a sample of the most common types of HVAC

systems. Refer

your

system's installation manual for wiring information.

HEAT/COOL

HEATOilLY

&WIRE }WIRE

STNGLE TRANSFoRMER

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HEAT PUMP WIRING

HEAT PUMP WITH

COOL

ACTIVE

REVERSIT{G VALVE

Test Thermostat

WARl{ll{G:

D0 NOT SHORT

(JUMPER)

ACR0SS TERMINAIS 0F GAS

VALVE OR SYSTEM

CONTROT

TO TEST

OPERATION. THIS WIII

DAMAGE THE THERMOSTAT AI{D VOID YOUR WARRAI{TY.

GAUTION:

D0 NOT SWITCH SYSTEM T0 C00t lF THE TEMPERATURE

BETOW

sO'F

(10'C).

THIS CAN DAMAGE THE AIR

COTIDITIONING

SYSTEM AI{D

CAUSE

PERS()NAT INJURY.

l. Place the

EMER-HEAT-0FF-C001 switch into

the

C00L

position.

The * will

be displayed.

2. Press

the

button until the temoerature

setting

least 3 degrees below the room

emer heat off

cool

temperature.

The air conditioning system should

turn

on within a

few

seconds.

NOTE: 0NGE THE

THERMOSTAT TURNS

OFF

WHEN ltl THE C00t MODE,

A BUITT IN s-MINUTE

DETAY PREVENTS THE SYSTEM FROM

TURNING ON

AGAIN. THIS PROTECTS

THE COMPRESSOR.

ADDITIONAT

TIME DELAY RELAY

IS REQUIRED. TO OVERRIDE THE

s-MI]{UTE DELAY FOR Ii{STATTATIOI{. PRESS THE RESET BUTTON.

Put the EMER-HEAT-OFF-C001

switch into the

0FF

position.

The air conditioning system

should turn off.

4. Put

the EMER-HEAT-0FF-C001switch

into the

HEAT

position.

The

d will be displayed.

5. Press the

button until the temoerature

setting is at least 3 degrees above room

emer heat off cool

temperature. The heating system should turn on. The fan may

not turn on immediately, depending on the fan delay built into

the furnace.

N0TE: lf HP is selected, the heat will not come on until the 5 minute

short cycle

protection

has expired.

6. Put the EMER-HEAT-0FF-C001 switch into the

EMER

position.

The 0

will be displayed.

Press the A button until the temDerature

setting is at least 3 degrees above room

emer heat

off cool

temperature. The secondary heating system

should

turn on.

NOTE: The

compressor

will not

turn

when in

emergency

heat mode.

Put the EMER-HEAT-OFF-Co01 switch into the

OFF

position.

The heating system

should

turn

off.

The

fan mav continue

to run for

a short

oeriod of time.

Figure

Mounting Holes

HP OPTION SWITCH

Heat

pump

switch.

Tap

plastic

anchors into

the wall.

Align base with

plastic

anchors and

feed wires through

opening

(see

Figure

3).

Secure base

to wall

with supplied screws.

Connect

wires to terminal strip. Refer to wiring

diagrams

page

Make sure wire connections are

secure.

Place Electric/Gas switch into either the ELEC or GAS

position

depending on the type of furnace

(see

Figure 3).

Place the HP option switch into either the N0N_HP or HP

position

depending on the type

system

you

are using

(see

Figure 3). Use

the HP

position

for heat

pumps

0NLY Use the NON_HP setting for

everything else.

Replace cover 0n thermostat by snapping into

place.

Turn on oower to svstem. Test thermostat as described in

the

section To Test Thermostat.

HEAT PUMP + AUx COOL

COOL

ACTIVE

REVERSING VALVE

i_-

-l:

-r{,

Eor

ELECTRIC/GAS

SWITCH

Selects fan control.

10.

11.

12.

13.

14.

emer heat off cool

Put the

The blo

show a

Put the

AUT0-0N switch into the 0N

position.

fan

should

turn on. The display will

AUfO-Otrt switch into the AUTo

oosition.

The blower fan should

turn 0ff.

/F\

tr a_l]l

|| t lt l

auto on

/:\

IrT-t I

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\-/

auto on

DIAGRAMS

HEAT PUMP WITH

HEAT

ACTIVE

BEVEBSING VALVE

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S?l15.f,l1$;,,

HEAT PUMP + AUX

HEAT

HEAT ACNVE

BEVERSING

VALVE

wer

1 2 3 4

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Robertshaw 8625 User Manual Page 2

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