Sears Official Manual for Furnaces: Key Models Information

++

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					DISCONNECTBEFORESERVICING						_.
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				LP PRESSURE . .		COPPER CONDUCTORS			>	+40 0
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P14

1TO21NSERIES

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1.

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_ER/E_DEL

_ _ _

1.

Ifanyoftheoriginalequipmentwireisreplacedusewirerated

105°C.

SPEEDTAP

CODE

COLOR

CODE

HUM

24VAC

-

-

....

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-<

-

-

2.

Useonlycopperwirebetweenfl]edisconnectswitchandthefumace

....

--L--

P1 10

140 SEC

BLAC K

BK

,

LP PRESS SWITCH I.unctJon

_.. .

box

•....

BLAC.

.,

-

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3.

to

furnace

sheet

metal

for control to

BLOE

BL II

.=;L:_I/'

[+'_;DELSONL'D'

..is

wire mus, _e connec,e_

ORANGE

MHI

BROWN

BR

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P+8

NOTE #8

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4.

provename.

only.

BLUE

MLO

GREEN/YELLOWGRN/YII

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......

Symbols

are electrical representation

ORANGE

O

L_

GAS

L

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5.

not depicted as shown in the legend.

and are

RED

LO

WHITERED

WR

y

CPU

VALVERELAY

P1 2

_

BV_ -- 'I

mmO

100J1 18

Solid lines inside

circuit board

are printed circuJt board traces

6.

Replaceonlywitha5ampfuse.

are for average

conditions,

see

YELLOW

Y

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(FIELDINSTALLED)

E_

IBBI

7.

Slower

motor speed selec(Jons

_

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m

J

installation instructions for detail ....

pti

peed

selection.

.

_

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r

0

140

8.

Factory

connected

when LP Pressure

Switch

and BVSS (Chimney

--

LOW

VOLTAGE

FACTORY

_

--

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vAGASE )_

P1 ;7

_--_

80 S EC

Adapter

A

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t instal!ed.

....._

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z +"r_ -IT

9.

seconds,

cooling

or heat pump

90 seconds.

140,

and 180)

LOW

VOLTAGE

FIELD

p

Blower of Fdelay,

gas heating

selec_ons

are (60, i00,

10. Ignition

lockout will occur after four consecutive

unsuccessful

trials

for

LINE

VOLTAGE

FACTORY

oS-

=

//

**

NOTE #3

LINE

VOLTAGE

F IE LD

ignition.

Controlwillauto-reset

after

three hours.

__

CONDUCTOR

ON CONTROL

_ _

_

,I_)P1

3

SENSOR

11. Blower

motor and inducer motor

contain

internal

auto-reset

thermal

--

_o_

,1_)

P1 1

NOTE #12

overload switch es.

J U NC T I O N

O

UNMARKED

TERMINAL

I

_"

I.

13. Depending on model, P4 inducer motor leads may be in a single connector

IICONTROL BOARD

330709-101 REV,B

12. Flameor b,_._sensor:quick connecters.0.7 RA D.C. minimum,

2.0 - 4.0

pA nominal.

_

CONTR

OL

TE R MI NAL

I_,P1

9

2