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Honeywell S8700 Series, Руководство по установке

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S8700B,D-F,J-M DIRECT SPARK IGNITION CONTROLS

3

69-1299

Fig. 1. S8700 mounting dimensions in in. (mm).

Auxiliary Controls

Mount the spark igniter, flame sensor, temperature 
control, transformer, gas control and any other auxiliary 
controls according to the manufacturer’s instructions.

NOTE:

NOTE: Make sure the 24V system transformer 
is rated to handle both the S8700 current and 
the total gas valve current. 

WIRING 

General Precautions

1.

For circuits that differ from the diagrams in Fig. 2 
and 3, check the wiring diagrams from the heating 
appliance manufacturer, if available. Carefully fol-
low any special instructions that would affect the 
following general procedures.

2.

All wiring must comply with applicable electrical 
codes and ordinances.

3.

Disconnect the power supply before wiring to 
prevent electrical shock or equipment damage.

4.

When installing a separate  flame sensor, the 
sensor leadwire should be kept as short as 
possible and should not be allowed to rest against 
grounded metal surfaces.

5.

Ignition cable should not touch any metal surface 
or current carrying wires. It must not be more than 
6 ft (1.8m) long. See Table 2 for recommended 
ignition cable.

6.

Do not short valve terminals as this can damage 
the temperature controller, the transformer or the 
S8700 control.

Table 2. Recommended Ignition Cable.

Wiring the S8700 Control 

1.

Connect the system components to the S8700 
terminals as shown in the wiring diagrams, Fig. 2 
and 3. Refer to the heating appliance manufac-
turer’s instructions for wiring any other auxiliary 
controls.

2.

Adjust the temperature control heat anticipator (if 
provided) to match the system current draw. The 
current draw equals the total current required for 
the S8700 (0.15A) plus the gas valve and all other 
24V control loads (vent dampers, and prepurge 
relays). Gas valve must be designed for the DSI 
application.

NOTE:

NOTE: Use only recommended ignition cable 
(see Table 2), or equivalent, to connect the 
S8700 with the spark igniter. Cable must not 
run in continuous contact with a metal surface 
or spark voltage is greatly reduced; use 
ceramic standoff brackets if necessary. Cable 
length must not exceed 6 ft (1.8m).

Fig. 2. Typical wiring diagram for 

S8700D,F,K,M dual rod models.

M16233

13/16 (21)

1-1/8
(29)

2
(50)

2-13/16 (72)

3-15/16 (100)

3-3/8 (86)

3-3/8 
(86)

5/17 (7)

7/8 (23)

5-3/16
(130)

3/16 (4)

Cable Type

RMS Voltage 

Rating

Maximum 

Ambient 

Temperature 

Rating

F

C

UL Style 3257

10,000

482

250

Q347
SPARK
IGNITER

Q354 FLAME
SENSOR

BURNER

IGNITER AND
BURNER GROUND

L1 
(HOT)
L2

1

2

3

1

2

3

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD 
PROTECTION AS REQUIRED.

ALTERNATE LIMIT CONTROLLER LOCATION.

MAXIMUM IGNITER-SENSOR CABLE LENGTH: 6 FT (1.8 M).

S8700D,F,K,M CONTROL

ANY COMBINATION
GAS CONTROL
2.0A MAX.

TEMPERATURE
CONTOL

LIMIT CONTROLLER

TRANSFORMER

M16527

FLAME
SENSE

ALARM

VALVE

GND

VALVE (GND)
24 Vac (GND)
24 Vac

BURNER

(GND)

SPARK

ALARM, IF USED

Содержание S8700 Series

Страница 1: ...tput is positive phase one half wave rectified 24 Vac Spark Output 14 KV minimum into 25 picofarad capacitive load Environmental Ambient Operating Temperature 40 F to 175 F 40 C to 79 C Relative Humidity 5 to 95 at 95 F 35 C noncondensing Ignition Sequence Flame Sense Prepurge See Table 1 Ignition Trials to Lockout See Table 1 Trial for Ignition Times 4 6 6 6 11 1 or 21 1 second nominal available ...

Страница 2: ... to protect the control Proper insulation or shielding should be provided by the appliance manufacturer verify proper air circulation is maintained when the appliance is installed System Requirements S8700 system requirements Q347A Spark Igniter and Q354A Flame Sensor or a Q366 with separate spark igniter and flame sensor mounted on a common bracket Equivalent ignition hardware may be used Honeywe...

Страница 3: ...ontrol 1 Connect the system components to the S8700 terminals as shown in the wiring diagrams Fig 2 and 3 Refer to the heating appliance manufac turer s instructions for wiring any other auxiliary controls 2 Adjust the temperature control heat anticipator if provided to match the system current draw The current draw equals the total current required for the S8700 0 15A plus the gas valve and all o...

Страница 4: ...t System 1 Turn on the power and the gas supply 2 Set the temperature control to call for heat and watch for a spark at the igniter S8700B D E F models have no delay on start up S8700J K L M models have a predetermined delay on start up for prepurge Check that the system starts as follows Prepurge delay if provided spark turns on gas valve opens at once and burner ignites after gas reaches the mai...

Страница 5: ...the reset normal condition and interrupts the spark ignition circuit Should the current flow be interrupted i e flame out condition the spark will be re initiated immediately and a normal trial for ignition will occur If the main burner lights and proves a normal run will occur If the main burner does not light and prove the S8700 goes into lockout The S8700 keeps the gas control main valve open a...

Страница 6: ...gnition circuit do the following 1 Shut off the gas supply to the gas control 2 Be sure system power supply delivers proper volt age to the S8700 during the ignition cycle 3 Disconnect the ignition cable at the S8700 spark terminals to isolate the circuit from the spark igniter or igniter sensor Prepare a short jumper lead using heavily insulated wire such as ignition cable Fig 4 S8700B D J K one ...

Страница 7: ...y even though operation is normal at time of checkout Therefore if nuisance shutdowns have been reported be sure to check ground connections Electrical ground connections at the spark igniter or igniter sensor and the S8700 must be clean and tight If leadwire is damaged or deteriorated use only a No 14 or No 18 gauge moisture resistant thermoplastic insulated wire with 221 F 105 C minimum rating a...

Страница 8: ...ions as described in the following sections Fig 6 S8700D F K M dual rod flame current measurement Fig 7 S7800B E J L single rod flame current measurement Burner Flame The flame sensor must be constantly immersed in flame Check the burner flame conditions as shown in Fig 7 NOTE Note If the main burner flame is fluctuating or lifting off the main burner intermittent flame signals can be generated Ad...

Страница 9: ...ce or repair the troubleshooting sequence should be repeated until normal system operation is obtained NOTE When the appliance is in the lightoff mode ignition spark and the gas control are energized only during the trial for ignition which can last from four to 21 seconds depending on the S8700 model It will be necessary to recycle the call for heat to the control while performing this troublesho...

Страница 10: ...SPARK GAP IS NOT TOO SMALL OR TOO LARGE ALL OK REPAIR REPLACE AS NECESSARY REPAIR REPLACE AS NECESSARY IF S8700 GOES INTO LOCKOUT RESET SYSTEM CHECK FOR 24 VAC BETWEEN S8700 VALVE AND VALVE GND TERMINALS DURING TRIAL FOR IGNITION CHECK GAS SUPPLY GAS CONTROL AND GAS CONTROL WIRING REPAIR REPLACE AS NECESSARY IF S8700 GOES INTO LOCKOUT RESET SYSTEM CHECK ALL IGNITION CABLE BURNER GROUND WIRING AND ...

Страница 11: ...11 69 1299 ...

Страница 12: ...Home and Building Control Honeywell Inc Honeywell Limited Honeywell Limitée Honeywell Plaza 155 Gordon Baker Road P O Box 524 North York Ontario Minneapolis MN 55408 0524 M2H 3N7 Printed in U S A on recycled paper containing at least 10 post consumer paper fibers ...

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