Honeywell RA116A Manual de usuario

Otros manuales para RA116A

2

Este manual sirve para los siguientes modelos

2

Tabla de contenidos

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PROTECTORELAY

OIL

BURNER

CONTROLS

THESE

ONE-PIECE,

STACK-MOUNTED

OIL

BURNER

PRIMARY

CONTROLS

CYCLE

THE

BURNER

ON

THERMOSTAT

DEMAND

AND

SHUT

DOWN

THE

BURNER

ON

FLAME

LOSS

OR

SYSTEM

MALFUNC¬

TION.

□

Combine

a

Protectorelay

unit

for

cycling

the

burner

and

a

Pyrostat

flame

detector

for

sensing

temperature

changes

of

flue

gases

up

to

1000°

F

[556°

C],

□

RA116A

is

used

with

intermittent

ignition

burners

(formerly

called

constant

ignition

burners).

□

RA117A

and

RA817A

are

used

with

interrupted

ignition

burners

(formerly

called

intermittent

ignition

burners).

□

Used

with

line

voltage

or

24V

controllers.

□

Safety

switch

may

be

manually

tripped

on

all

models.

□

On

RA116A,

lockout

occurs

if

flame

is

not

re-es¬

tablished

during

safety

switch

timing.

□

On

RA117A

and

RA817A,

flame

or

power

failure

is

followed

by

a

one

minute

(approximate)

scavenging

period

and

one

attempt

to

re-establish

flame.

Lockout

occurs

if

flame

is

not

re-established.

□

Manual

reset

of

safety

switch

is

required

after

ignition

failure

completely

shuts

off

main

burner.

D.T.

3-91

Form

Number

68-0119

©Honeywell

Inc.

1991

RA116A

RA117A

RA817A

SPEgmiCM»ONS|Ml

:

W

;

-'1

-IMPORTANT-----

THE

SPECIFICATIONS

GIVEN

IN

THIS

PUBLICATION

DO

NOT

INCLUDE

NORMAL

MANUFACTURING

TOLERANCES.

THEREFORE,

UNITS

MAY

NOT

MATCH

THE

LISTED

SPECIFICATIONS

EXACTLY.

ALSO,

PRODUCTS

ARE

TESTED

AND

CALIBRATED

UNDER

CLOSELY

CONTROLLED

CONDITIONS,

AND

SOME

MINOR

DIFFERENCES

IN

PERFORMANCE

CAN

BE

EXPECTED

IF

THOSE

CONDITIONS

ARE

CHANGED.

SUPER

TRADELINE

MODELS

-

SUPER

TRADELINE

controls

offer

features

not

available

on

TRADELINE

or

standard

models,

and

are

designed

to

replace

a

wide

range

of

Honeywell

and

competitive

controls.

TRADELINE

MODELS

-

TRADELINE

controls

offer

features

not

available

TRADELINE

MODELS:

on

standard

models

and

are

designed

to

replace

a

wide

rai

16A

Stack

Mounted

Protectorelay

range

of

Honeywell

and

competitive

controls.

Special

TRADELINE

packaging

with

cross

refer¬

ence

label

and

TRADELINE

instruction

sheet.

SUPER

TRADELINE

MODELS

AVAILABLE:

RA117A

Stack

Mounted

Protectorelay

Special

SUPER

TRADELINE

packaging

with

cross

reference

label

and

SUPER

TRADELINE

in¬

struction

sheet.

STANDARD

MODELS

MODEL

NUMBER

TYPE

OF

IGNITION

24V

THERMOSTAT

IGNITION

RATING

INPUT

VOLTAGE

RA116A

Intermittent

ignition

3

(formerly

called

constant

ignition)

2-

wire

3-

wire

series

10

360

VA

120V/60HZ

RA117A

Interrupted

ignition

6

(formerly

called

intermittent

ignition)

2-

wire

3-

wire

series

10

550

VA

120V/60

Hz

RA817A

Interrupted

ignition

6

(formerly

called

intermittent

ignition)

2-wire

550

VA

110V/50

Hz

120V/60

Hz

220V/50

Hz

240V/60

Hz

«

Lockout

occurs

if

flame

is

not

re-established

during

the

safety

switch

timing.

b

Flame

or

power

failure

is

followed

by

a

one

minute

(approximate)

scavenging

period

and

one

attempt

to

re-establish

the

flame.

Lockout

occurs

if

flame

is

not

re-established.

ORDERING

^NFORMAT^O^^—

FOR

ORDERING

INFORMATION

WHEN

PURCHASING

REPLACEMENT

AND

MODERNIZATION

PRODUCTS

FROM

YOUR

TRADEUNE

WHOLESALER

OR

YOUR

DISTRIBUTOR,

REFER

TO

THE

TRADEUNE

CATALOG

OR

PRICE

SHEETS

FOR

COMPLETE

ORDERING

NUMBER,

OR

SPECIFY:

1.

Order

number.

TRADELINE

or

SUPER

TRADELINE.

2.

Input

voltage

and

frequency.

IF

YOU

HAVE

ADDITIONAL

QUESTIONS,

NEED

FURTHER

INFORMATION,

OR

WANT

TO

COMMENT

ON

OUR

PRODUCTS

OR

SERVICES,

PLEASE

WRITE

OR

PHONE:

1.

YOUR

LOCAL

HONEYWELL

RESIDENTIAL

AND

BUILDING

CONTROLS

DIVISION

SALES

OFFICE

(CHECK

WHITE

PAGES

OF

PHONE

DIRECTORY).

2.

RESIDENTIAL

AND

BUILDING

CONTROLS

CUSTOMER

SATISFACTION

HONEYWELL

INC.,

1885

DOUGLAS

DRIVE

NORTH

MINNEAPOUS,

MINNESOTA

55422-4386

(612)

542-7500

IN

CANADA:

HONEYWELL

CONTROLS

LIMITED

740

ELLESMERE

ROAD

SCARBOROUGH,

ONTARIO

M1P

2V9

INTERNATIONAL

SALES

AND

SERVICE

OFFICES

IN

ALL

PRINCIPAL

CITIES

OF

THE

WORLD.

AMBIENT

TEMPERATURE:

Operating:

0°

F

to

104°

F

[-18°

C

to

40°

C].

Shipping:

-40°

F

to

150°

F

[-40°

C

to

66°

C],

DIMENSIONS:

Refer

to

Fig.

1.

ELECTRICAL

RATINGS

(amperes):

Motor

Ratings

110V/50

Hz

220V/50

Hz

120V/60

Hz

240V/60

Hz

Full

Load

7.4

3.7

Locked

Rotor

44.4

22.2

ELEMENT

INSERTION

LENGTH:

Adjustable

from

3-1/2

to

5-1/2

inches

[89

to

140

millime-

MOUNTING

FLANGE:

Available

for

6

inch

[152

millimeter]

diameter

pipe

(refer

to

Fig.

2).

Can

also

be

flattened

for

flat-mounting

applica¬

tions.

24V

THERMOSTAT

HEAT

ANTICIPATOR

CURRENT:

0.4A.

LINE

VOLTAGE

THERMOSTAT

OR

CONTROLLER

(RA116A,

RA117A):

2

wire,

8A.

Requires

jumper

across

W

and

B

terminals.

Refer

to

Fig.

5

or

7.

SAFETY

SWITCH

TIMING:

75

Seconds

(nominal).

APPROVALS:

UNDERWRITERS

LABORATORIES

INCORPORATED

LISTED

(RA116A,

RA117A

ONLY):

File

Number

MP268,

Guide

Number

MCCZ.

ters].

The

RA116A

replaces

the

following

competitive

devices:

HONEYWELL

WHITE

RODGERS

GENERAL

ELECTRIC

GENERAL

PERFEX

R116A.B

603

A101B2

5200

R124A.B

611-1

CR7865

5300

R134A

611-31

R168A

611-33

R494A

615

RA116A.B

6L18

RA416A

RA816A,D

b

PENN

ITT

GENERAL

MERCOID

DETROIT

664

5200

JM

CA701

a

670

R96A102A

CA702

8

680

R96G102DC

a

A

Detroit

3-wire

thermostat

must

be

replaced

by

a

2-wire

thermostat

with

a

suitable

heat

anticipator.

b

When

replacing

a

model

having

an

F

or

O

terminal

to

power

a

clogged

filter

indicator

light,

provide

a

separate

transformer

for

the

light.

The

RA117A

replaces

the

following

competitive

devices:

HONEYWELL

WHITE

RODGERS

GENERAL

ELECTRIC

GENERAL

PERFEX

R116A,B

602

A101A2

5200

R117A

603

A101B2

5230

R123A,B

610-2

CR7856

5520

R124A.B

610-32

5525

c

R134A

611-1

R168A

611-31

R494A

615

RA116A.B

6L18

RA117A

RA416A

RA816A

RA817A.C

RA817A,C

b

»

c

DELCO

PENN

ITT

GENERAL

MERCOID

DETROIT

COA

664

5200

JM

CA701

a

COA-1

670

R96A102A

JM1

CA702

3

672

R96G102DC

680

682

a

A

Detroit

3-wire

thermostat

must

be

replaced

by

a

2-wire

thermostat

with

a

suitable

heat

anticipator.

b

When

replacing

a

model

having

an

F

or

O

terminal

to

power

a

clogged

filter

indicator

light,

provide

a

separate

transformer

for

the

light.

c

Do

not

use

RA117A

to

replace

this

control

where

timed

ignition

is

required

for

a

wall-flame

burner.

3

68-0119

|

%

■

IS

r

j

INSTALLATION

,

WHEN

INSTALLING

THIS

PRODUCT...

1.

R

e

a

d

these

instructions

carefully.

Failure

to

follow

them

could

damage

the

product

or

cause

hazardous

condition.

2.

Check

the

ratings

given

in

these

instructions

and

on

the

product

to

ensure

the

product

is

suitable

for

your

application.

3.

Ensure

the

installer

is

a

trained,

experienced

service

technician.

4.

After

completing

installation,

use

these

instructions

to

check

product

operation.

MOUNTING

(Refer

to

Fig.

2)

Followthe

mounting

instructions

supplied

bythefurnace,

boiler,

or

burner

manufacturer,

if

available.

Otherwise,

use

the

instructions

provided

below.

When

replacing

one

of

the

controls

listed

on

page

3,

identify

each

leadwire

as

it

is

removed

from

the

old

control

by

marking

the

wire

with

the

number

of

the

RA116A

or

RA117A

terminal

to

which

it

will

be

connected.

Refer

to

Table

1

and

2

to

translate

the

old

terminal

identifications

to

the

new

RA116A

or

RA117A

terminal

identifications.

TABLE

1—IDENTIFYING

TERMINALS

FOR

RA116A

REPLACEMENT.

TERMINAL

TERMINAL

IDENTIFICATION

IDENTIFICATION

ON

ON

OLD

CONTROL

NEW

RA116A

1,

LH,

or

HOTLINE

1

2,

LG,

or

LINE

2

3,

4,

M,

or

MOTOR

3

TABLE

2—IDENTIFYING

TERMINALS

FOR

RA11

7

A

REPLACEMENT.

_

TERMINAL

TERMINAL

IDENTIFICATION

IDENTIFICATION

ON

ON

OLD

CONTROL

NEW

RA117A

1,

LH,

or

HOTLINE

!

i

2,

LG,

or

LINE

2

3,

M,

or

MOTOR

3

4,

1,

or

IGNITION

4

If

the

position

of

the

old

control

was

satisfactory,

install

the

new

RA116A

or

RA11

7

A

in

the

same

location

as

the

old

one,

making

sure

to

insert

the

bimetal

element

the

same

distance

into

the

stack

as

the

old

element.

If

the

old

element

was

inserted

more

than

5-1

/2

inches

[140

millime¬

ters],

insert

the

new

control

5-1/2

inches

[140

millimeters]

into

the

stack.

If

the

position

of

the

old

control

was

not

satisfactory,

close

the

old

holes

tightly

with

a

metal

plate

and

follow

these

instructions.

1.

F

ollow

these

location

considerations.

CAUTION

1.

Do

not

bend

contact

arms

or

stops

on

the

Py

rostat

detector

mechanism

or

make

any

adjustments

other

than

those

given

in

the

instructions.

2.

Remove

the

cardboard

packing

behind

the

drive

shaft

lever

by

pushing

the

packing

up

and

pulling

it

straight,

out

over

the

top

of

the

lever.

Do

not

remove

packing

by

pulling

sideways.

3.

Ensure

all

wiring

complies

with

applicable

codes

and

ordinances.

4

A

DO

NOT

FORCE

THE

COLLAR

OF

THE

MOUNTING

FLANGE

PAST

THE

STOP.

M15

a

6A

FIG.

2—MOUNTING

AND

LOCATION

CONSIDERATIONS.

•

Locate

the

control

between

the

boiler

or

furnace

and

draft

regulator.

•

Locate

the

control

as

near

as

possible

to

the

boiler

or

furnace.

•

If

mounting

in

an

elbow,

locate

the

element

near

the

outer

curve

where

the

hottest

gases

flow.

•

Do

not

locate

the

element

where

the

temperature

may

exceed

1000°

C

[556°

C],

2.

Cut

a

1

-3/8

inch

[35

millimeter]

hole

in

the

stack

at

the

location

desired.

3.

Drill

two

holes

and

fasten

the

mounting

flange

using

the

screws

provided.

The

flange

should

fit

the

mounting

surface

snugly,

but

it

may

be

bent

to

fit

a

different

radius

stacker

flattened

to

fit

aflat

surface.

Do

not

force

the

collar

or

mounting

flange

past

the

stop.

4.

Insert

the

bimetal

element

at

the

center

of

the

stack

in

direct

path

of

the

hottest

flue

gasses.

5.

Tighten

the

lockscrew.

WIRING

Follow

the

appliance

manufacturer’s

instructions,

if

available.

Otherwise,

follow

the

wiring

diagrams

shown

in

Fig.

3

through

7.

WIRING

DIAGRAMS

L2A

RA116A

SERIES

10

THERMO¬

STAT

A

LI

A

(

H

°

T

)

H

IGNITION

1

*

1

1

r

j

OIL

VALVE

1

0

&

.©

0

1K1

:

1K2

ISLI

.SAFETY

.SWITCH

•HEATER

1K3

|_I

PYROSTAT

CONTACTS

A

POWER

SUPPLY.

PROVIDE

DISCONNECT

MEANS

AND

OVERLOAD

PROTECTION

AS

REQUIRED.

A

IF

USING

A

TWO-WIRE

THERMOSTAT.

TAPE

LOOSE

END

OF

RED

WIRE

(IF

NECESSARY).

A

USE

GREEN

TERMINAL

TO

CONNECT

CASE

TO

GROUND.

FIG.

3—RA116A

WIRING

DIAGRAM

WITH

A

24V,

3-

WIRE

THERMOSTAT.

5

68-0119

LINE

VOLTAGE

THERMOSTATOR

I

CONTROLLER

BURNER

.

MOTOR

(

I

I

1K2

IK

—

LT^J—

.SAFETY

.SWITCH

■

H

E

ATER

|_|

PYROSTAT

CONTACTS

A

POWER

SUPPLY.

PROVIDE

DISCONNECT

MEANS

AND

OVERLOAD

PROTECTION

AS

REQUIRED.

A

USE

GREEN

TERMINAL

TO

CONNECT

CASE

TO

GROUND.

M1&83

FIG.

4—RA116A

WIRING

DIAGRAM

WITH

A

LINE

VOLTAGE

THERMOSTAT

OR

CONTROLLER.

LI

L2

A

A

(

H

OT)

I

LINE

VOLTAGE

JL.

CONTROLLER

OR

I

6

I

-

THERMOSTAT

I

A

(HOT)

SERIES

10

THERMO¬

STAT

a

(HOT)

Ip

1K3

LX

J

[PYROSTAT

-j

CONTACTS

(COLD)

A

A

POWER

SUPPLY.

PROVIDE

DISCONNECT

MEANS

AND

OVERLOAD

PROTECTION

AS

REQUIRED.

A

USE

GREEN

TERMINAL

TO

CONNECT

CONTROL

CASE

TO

GROUND.

A

IP

USING

A

TWO-WIRE

THERMOSTAT,

TAPE

LOOSE

ENDS

OF

RED

WIRE

(IF

NECESSARY).

A

CONTACTS

BREAK

IN

SEQUENCE

ON

TERMPERATURE

RISE.

A

TO

REPLACE

AN

INTERMITTENT

IGNITION

DEVICE

(FORMERLY

CALLED

CONSTANT

IGNITION),

CONNECT

IGNITION

LEADWIRE

TO

TERMINAL

3,

INSTEAD

OF

TERMINAL4.

M15a2

FIG.

5—RA117A

WIRING

DIAGRAM

WITH

A

24V,

3-

WIRE

THERMOSTAT.

BURNER.

MOTOR

(

y

(J)

2K1

:

(HOT)

fni

SAFETY

►

SWITCH

►

HEATER

LXJ

[PYROSTAT

-J

CONTACTS

(COLD)

A

A

POWER

SUPPLY.

PROVIDE

DISCONNECT

MEANS

AND

OVERLOAD

PROTECTION

AS

REQUIRED.

A

USE

GREEN

TERMINAL

TO

CONNECT

CONTROL

CASE

TO

GROUND.

A

CONTACTS

BREAK

IN

SEQUENCE

ON

TERMPERATURE

RISE.

Ml

584

FIG.

6—RA117A

WIRING

DIAGRAM

WITH

A

LINE

VOLTAGE

THERMOSTAT

OR

CONTROLLER.

6

LI

A

POWER

SUPPLY.

PROVIDE

DISCONNECT

MEANS

AND

OVERLOAD

PROTECTION

AS

REQUIRED.

^

USE

GREEN

TERMINAL

TO

CONNECT

CASE

TO

GROUND.

^

CONTACTS

BREAK

IN

SEQUENCE

ON

TERMPERATURE

RISE.

Ml

581

FIG.

7—RA817A

WIRING

DIAGRAM.

OPERATION

The

schematic

diagrams

show

all

systems

in

the

idle

condition:

•

Burner

off,

no

call

for

heat.

•

Pyrostat

contacts

closed

(RA116A).

•

“Cold”contactsclosed,

"hot”contacts

open

(RA117A,

RA817A).

•

Safety

switches

closed.

•

All

relays

de-energized.

NORMAL

OPERATING

SEQUENCE

On

a

thermostat

(or

line

voltage

controller)

call

for

heat,

the

ignition,

oil

valve,

and

burner

motor

start.

The

safety

switch

begins

heating.

Afterthe

burner

flame

is

established,

the

stack

temperature

rises

and

expands

the

bimetal

detector

element.

The

Pyrostat

contacts

open

(RA116A)

or

the

"hot”

contacts

close

and

the

“cold”

contacts

open

(RA117A,

RA817A),

de-

energizing

the

safety

switch

heater.

The

ignition

circuit

de-energizes

(RA117A,

RA817A

only).

When

the

call

for

heat

is

satisfied,

the

system

returns

to

the

idle

condition.

IGNITION

FAILURE

Iftheburnerflameis

not

established

within

approximately

75

seconds

(nominal)

of

a

thermostat

(or

line

voltage

controller)

call

for

heat,

the

Pyrostat

contacts

(RA116A)

or

"cold”

contacts

(RA117A,

RA817A)

remain

closed.

During

that

time,

the

safety

switch

is

heated.

If

the

burner

flame

is

not

established

after

75

seconds

(nominal),

the

system

locks

out

and

cannot

be

started

again

until

the

safety

switch

is

manually

reset.

BURNER

FLAME

FAILURE

DURING

THE

RUNNING

CYCLE

RA116A

The

loss

of

burnerflame

reduces

the

stacktemperature,

closes

the

Pyrostat

contacts,

and

energizes

the

safety

switch.

If

the

burner

flame

is

not

re-established

within

the

75

second

(nominal)

safety

switch

timing,

the

system

locks

out

and

cannot

be

started

again

until

the

safety

switch

is

manually

reset.

RA117A,

RA817A

The

loss

of

burnerflame

reduces

the

stacktemperature,

opens

the

"hot”

contacts,

and

shuts

the

system

down

by

de-energizing

the

2K

burner

motor

relay.

After

a

one

minute

(approximate)

scavenging

period,

the

"cold”

con¬

tacts

close

and

energize

the

safety

switch

heater.

If

the

thermostat

(or

line

voltage

controller)

is

still

calling

for

heat,

the

Protectorelay

control

makes

one

attempt

to

restart

the

system.

If

the

burner

flame

is

not

re-established

in

75

seconds

(nominal),

the

system

locks

out

and

cannot

be

started

again

until

the

safety

switch

is

manually

reset.

POWER

FAILURE

DURING

THE

RUNNING

CYCLE

A

power

failure

shuts

off

the

ignition

and

burner

motor.

If

the

thermostat

is

still

calling

for

heat

when

power

is

restored,

the

stack

temperature

must

cool

and

return

the

system

to

the

idle

position.

Once

the

system

returns

to

the

idle

condition,

it

begins

the

normal

operating

sequence.

7

68-0119

STARTUP

AND

CHECKOUT

WARNING

FIRE

HAZARD

CAN

CAUSE

SEVERE

BURNS

Ensure

the

combustion

chamber

is

free

of

oil

or

oil

vapor

before

starting

system.

STEP

THE

PYROSTAT

DETECTOR

CONTACTS

The

detector

contacts

are

actuated

by

a

friction

clutch

that

is

mounted

on

a

rod

connected

directly

to

the

heat-

actuated

element.

Occasionally,

this

clutch

gets

“out

of

step”

after

a

long

period

of

idleness.

To

place

the

clutch

and

the

contacts

“in

step,”

1.

Remove

the

cover.

2.

Pull

the

lever

forward

1/4

inch

(Fig.

8).

3.

Slowly

release

the

lever.

4.

Replace

the

cover.

TACTS.

START

THE

SYSTEM

1.

Ensure

the

Pyrostat

detectors

are

in

step.

2.

Push

in

and

release

the

safety

switch

reset

button.

3.

Open

the

hand

valve

in

the

oil

supply

line.

4.

Set

the

limit

control

and

thermostat

to

call

for

heat.

5.

Close

the

line

switch.

The

burner

should

start.

CHECK

THE

SAFETY

FEATURES

Simulate

Flame

Failure:

1.

Follow

the

starting

procedure

to

turn

on

the

burner.

2.

Close

the

hand

valve

in

the

oil

supply

line.

3.

The

RA116A

locks

out

after

75

second

(nominal)

safety

switch

timing.

The

RA117A

and

RA817A

lock

out

after

one

minute

(approximate)

scavenging

period

and

75

second

(nominal)

safety

switch

timing.

4.

Reset

the

safety

switch

and

open

the

hand

valve

in

the

oil

supply

line.

Simulate

Ignition

Failure:

1.

Follow

the

starting

procedure

to

turn

on

the

burner,

except

do

not

open

the

oil

supply

hand

valve.

2.

Safety

switch

locks

out

after

75

second

(nominal)

safety

switch

timing.

Ignition

and

burner

motor

stops

and

oil

valve

closes.

3.

Reset

the

safety

switch

and

open

the

hand

valve

in

the

oil

supply

line.

Simulate

Power

Failure:

1.

Follow

the

starting

procedure

to

turn

on

the

burner.

2.

With

the

burner

running,

trip

the

circuit

breaker

or

remove

the

fuse

to

turn

off

power

to

the

system.

The

burner

should

stop.

3.

Restore

power.

The

burner

should

restart.

Check

the

Scavenger

Timing:

1.

Follow

the

starting

procedure

to

turn

on

the

burner.

2.

With

the

burner

operating

normally,

open

and

im¬

mediately

close

the

line

switch.

The

burner

should

stop

immediately.

3.

After

recycle

timing

(one

minute

approximately),

the

burner

should

restart

automatically.

ff

the

system

does

not

operate

as

described,

proceed

to

Troubleshooting.

To

completely

troubleshoot

an

oil

burner

installation,

check

the

burner,

ignition

transformer,

and

oil

primary

control

for

proper

operation

and

condition.

To

trifi

the

safety

switch,

move

the

safety

switch

lever

down

until

the

red

reset

button

pops

out.

Refer

to

Fig.

9.

The

burner

will

not

operate

until

the

safety

switch

is

reset

by

pushing

the

red

reset

button.

TRIP

SAFETY

SWITCH

BEFORE

OPERATING

BURNER

MAINTENANCE

Tripping

the

safety

switch

shuts

down

the

burner

but

does

not

disconnect

the

power

supply.

Turn

off

the

power

at

the

system

switch

or

the

circuit

breaker

before

servicing

the

control

system,

burner

motor,

oil

valve,

or

ignition

to

avoid

electrical

shock.

PUSH

LEVER

DOWN

TO

TRIP

SAFETY

SWITCH

D

FIG.

9—TRIPPING

AND

RESETTING

THE

SAFETY

SWITCH.

PRELIMINARY

STEPS

Before

checking

the

oil

primary

and

cad

cell,

check

out

the

following

parts

of

the

burner

and

ignition

systems.

Repair

or

replace

controls

as

indicated.

1.

Wiring

connections,

power

supply,

and

burner

motor

fuse.

Ensure

power

is

on

to

the

controls,

burner

motor,

and

ignition

transformer.

2.

Limit

switch.

3.

Ignition

transformer.

4.

Electrode

gap

and

position.

5.

Contacts

between

ignitiontransformer

and

electrode.

6.

Oil

pump

pressure.

7.

Oil

tubing

to

tank.

8.

Oil

nozzle.

9.

Oil

supply.

10.

Oil

filter.

If

the

system

is

still

not

operating

properly,

check

the

oil

primary

control

as

instructed

below.

CHECK

THE

OIL

PRIMARY

CONTROL

CAUTION

Since

troubleshooting

is

done

with

the

system

pow¬

ered,

observe

all

necessary

precautions

to

prevent

electrical

shock

or

equipment

damage.

Equipment

Required:

1.

Screwdriver

2.0

to

300

Vac

Voltmeter

3.

Insulated

Jumper

Wires

4.

Hard

Surface

Card

(such

as

a

business

card)

for

cleaning

contacts

68-0119

Burner

Does

Not

Start

When

Thermostat

Calls

For

Heat

PRELIMINARY

CHECKS

1.

Ensure

all

limit

switches

are

closed.

2.

Ensure

safety

switch

is

reset.

3.

Check

for

the

proper

line

voltage

at

the

oil

primary.

Proceed

as

follows

after

completing

the

preliminary

checks.

CORRECTIVE

ACTION

PROCEDURE

BURNER

STARTS

BURNER

DOES

NOT

START

1.

Jumper

the

thermostat

terminals:

•

Low

voltage

thermostat

at

oil

primary

•

Line

voltage

thermostat

at

thermostat

Trouble

in

the

thermostat

circuit.

Check

the

thermostat

and

wiring

connections.

!

Trouble

is

in

the

bimetal

detector

or

the

oil

primary.

Put

contacts

in

step

by

pulling

drive

shaft

lever

out

1/4

inch

and

releasing.

Refer

to

Fig.

8.

'

2.

Jumper

thermostat

terminals

to

start

burner.

Bimetal

detector

and

oil

primary

are

OK.

Clean

the

bimetal

detector

contacts

and

timer

contacts

(if

provided).

Go

to

step

3.

3.

Jumper

thermostat

terminals

to

start

burner.

Bimetal

detector

and

oil

primary

are

OK.

Go

to

step

4.

4.

Jumper

the

thermostat

terminals

and

jumper

the

normally

closed

contacts.

Reclean

the

bimetal

detector

contacts

again

and

recheck

by

jumpering

the

thermostat

terminals.

If

the

burner

starts,

bimetal

detector

and

oil

primary

are

OK.

Go

to

step

5.

5.

Jumper

the

thermostat

terminals

and

jumper

the

R

and

B

terminals

on

the

oil

primary.

Check

for

broken

wires,

loose

connections

between

the

bimetal

detector

and

the

control.

Repair

and

recheck

by

jumpering

the

thermostat

terminals.

Replace

the

bimetal

detector

if

necessary.

Replace

the

oil

primary

and

perform

Startup

and

Checkout

procedures.

Burner

Starts,

Flame

is

Established.

Then

Safety

Switch

Locks

Out

on

Safety.

PRELIMINARY

STEPS:

1.

Reset

the

safety

switch.

2.

Clean

bimetal

detector

contacts.

Proceed

as

follows

after

completing

the

preliminary

checks.

CORRECTIVE

ACTION

PROCEDURE

BURNER

KEEPS

RUNNING

BURNER

LOCKS

OUT

1.

Jumper

thermostat

terminals

to

start

burner.

•

Low

voltage

thermostat

at

oil

primary

•

Line

voltage

thermostat

at

thermostat

Bimetal

detector

and

oil

primary

are

OK.

•

Clean

the

drive

shaft,

remove

the

detector

and

clean

bimetal

element.

Replace

the

detector.

•

Check

the

detector

location.

If

the

stack

temperature

is

below

300°

F

[149°

C],

replace

the

bimetal

detector.

2.

Reset

the

safety

switch

and

jumper

the

thermostat

terminals

to

start

the

burner.

Bimetal

detector

and

oil

primary

are

OK.

Replace

the

oil

primary

and

perform

Startup

and

Checkout

procedures.

Honeywell

Inc.

U.S.A.:

1885

Douglas

Drive

N.

Golden

Valley,

MN

55422-4386

CANADA:

740

Ellesmere

Road

Scarborough,

Ontario

M1P

2V9

International

Sales

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in

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principal

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the

world.

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in

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