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3

69-0685

Any time work is done on the system.

The following procedures cover the integrated furnace

control only; see individual component instructions for addi-
tional checkout procedures.

Check Normal Operation

Turn on power to the appliance, and reset the furnace

control by turning the thermostat to its lowest setting and
waiting at least 45 seconds.

Set thermostat to call for heat. Make sure integrated

furnace control sequences the system as indicated in Table
3.

Set thermostat below room temperature to end call for

heat. Burner should go out, induced draft fan should stop and,
after delay time, indoor fan should stop.

TABLE 3—S9201A1010 SEQUENCE ON NORMAL

HEATING CYCLE.

SETTINGS AND ADJUSTMENTS

THERMOSTAT ANTICIPATOR

Set the heat anticipator in the thermostat to 0.1 plus the

current draw of the gas control.

FAN OFF TIMING

The fan off delay time is factory set at 90 seconds. To

change it, first disconnect power, then turn the switch screws
in or out according to Table 2. IN means to turn down until
snug; OUT means to turn out one to one and one-half full
turns.

TABLE 2—INDOOR FAN-OFF DELAY

TIME SETTINGS.

FAN OFF DELAY TIME

SW 1

SW 2

60 sec. (factory setting)

In

In

75 sec.

In

Out

45 sec.

Out

In

90 sec.

Out

Out

CHECKOUT

Check out the control system:

At initial installation of the appliance.

As part of regular maintenance procedures.

As the first step in troubleshooting.

Check Safety Shutoff Operation

Shut off gas supply at manual gas valve ahead of appli-

ance.

Set thermostat to call for heat. System should operate as

indicated in Table 4.

Following lockout, open manual gas valve and make sure

no gas is flowing to burner.

TABLE 4—S9201A1010 SEQUENCE ON FAILURE

TO LIGHT.

FIG. 2—LADDER DIAGRAM OF S9201 INTEGRATED

FURNACE CONTROL.

1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND

OVERLOAD PROTECTION AS REQUIRED.

L1 (HOT)

LIMITS

LIMIT 

 SENSOR

S9201

GAS

CONTROL

C

G

Y

W

R

P1-8

P1-6

P1-3

P1-5

P1-2

P1-4

P1-9

PRESSURE
SWITCH

3K

24 VAC

COM

COM

24 VAC

24 VAC

120 VAC

CONTROL

TRANSFORMER

N

P2-3

IGNITER

INDUCED
DRAFT  MOTOR

P2-6

L1

P2-1

P2-4

5K1

3K1

4K1

4K2

COOL

HEAT

M2

M1

RUN CAPACITOR

N

N

INDOOR
BLOWER
MOTOR

BLOWER
DOOR SWITCH

1

L2

M1433A

4K

5K

6K

7K

6K1

7K1

P

R

E

PURG

E

(3

0

 SEC

O

N

D

S

)

IGNI

TER W

ARM

 UP

(3

6 SE

CO

NDS)

TR

IA

L FO

R IGNI

TI

O

N

(9

 SEC

O

N

D

S

)

NO

RMAL

 RUN

PE

RI

O

D

F

AN O

N

 DE

LAY

(30 SE

COND

S)

F

AN O

FF 

DE

LA

Y

(90/45

/60/75 SE

C.)

THERMOSTAT CALL FOR HEAT

PREPURGE

INDUCED DRAFT BLOWER ON

IGNITER ON

GAS CONTROL OPEN

PROOF OF FLAME

INDOOR BLOWER MOTOR, EAC ON

HUMIDIFIER* ON

1 SEC.

* IF HUMIDIFIER CONTROLLER IS CALLING FOR HUMIDIFICATION.

M888

P

REP

URG

E

(3

0 S

E

C

ONDS

)

IG

NITER WA

RM UP

(36 S

E

CONDS

)

TRI

A

L

 FOR

 I

G

NITI

O

N

(9

 S

E

C

ONDS

)

B

ETWE

E

N

 TRI

A

L

 P

URG

E

(3

0 S

E

C

O

NDS

)

THERMOSTAT 

1 SEC.

M889

IGNI

TER W

ARM

 UP

(3

6 SE

CO

NDS)

TRI

A

L

 FOR 

IG

NITI

ON

(9

 S

ECO

NDS

)

LO

CKO

UT

(I

MM

E

D

IA

TE)

PURGE, 

IGNITER 

WARM UP, 

IGNITION 

SEQUENCE 

REPEATS 

3 MORE 

TIMES

1 SEC.

CALL FOR HEAT

PREPURGE

INDUCED DRAFT 
BLOWER ON

IGNITER ON

GAS CONTROL 
OPEN

PROOF OF FLAME

INDOOR BLOWER 
MOTOR, EAC ON

HUMIDIFIER
ON

Содержание S9201A1010

Страница 1: ...ing Igniter surface area immersed in flame must not ex ceed1 4ofthegroundedareaimmersedinflame This would prevent flame sensing Igniter current draw at 132 Vac must not exceed 5 A 2 Check the ratings given in these instructions to make sure the integrated furnace control is suitable for your appli cation 3 Installer must be a trained experienced service techni cian 4 After installation is complete...

Страница 2: ...en burner and S9201 1 4 in male Transformer secondary quick connects Field 120 Vac Screw terminals Humidifier and electronic air cleaner 24 Vac Screw terminals Thermostat WIRING CAUTION 1 Check the wiring diagram furnished by the appli ance manufacturer if available for circuits differing from the general hookup shown Carefully follow anyspecialinstructionsaffectingthegeneralproce dures outlined b...

Страница 3: ...roubleshooting Check Safety Shutoff Operation Shut off gas supply at manual gas valve ahead of appli ance Set thermostat to call for heat System should operate as indicated in Table 4 Following lockout open manual gas valve and make sure no gas is flowing to burner TABLE 4 S9201A1010 SEQUENCE ON FAILURE TO LIGHT FIG 2 LADDER DIAGRAM OF S9201 INTEGRATED FURNACE CONTROL 1 POWER SUPPLY PROVIDE DISCON...

Страница 4: ...neral guide Follow appliance manufacturer s service in structions if available 2 All meter readings must be taken within the trial for ignition period Once the ignition period ends the system must be reset by setting the thermostat down for at least 45 sec before continuing 3 If any component does not function properly make sure it is correctly installed and wired before replac ing it 4 Staticdisc...

Страница 5: ...NS POWERED AND LIT YES YES YES YES NO NO INDOOR BLOWER MOTOR STARTS AFTER 30 SECONDS CHECK FOR 120 VAC ACROSS BLOWER MOTOR AND BLOWER MOTOR TERMINALS ON IFC REPLACE IFC IF WIRING TO BLOWER MOTOR IS OK M890 NOTE If IFC goes into lockout wait 30 seconds then reset system CHECK CONTINUITY OF GROUND WIRE NOTE IF GROUND IS POOR OR ERRATIC SHUTDOWN MAY OCCUR OCCASIONALLY EVEN THOUGH OPERATION IS NORMAL ...

Страница 6: ...ng You Control Your World Building Controls Division Building Controls Division Honeywell Inc Honeywell Limited Honeywell Limitée 1985 Douglas Drive North 740 Ellesmere Road Golden Valley MN 55422 Scarborough Ontario M1P 2V9 QUALITY IS KEY ...

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