Honeywell S8600 User manual

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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APPLICATION
Theseignitionmodulesprovideignitionsequence,flame
monitoring and safety shutoff for intermittent pilot central
furnaces and heating appliances. S8600 and S8660 mod-
els provide up to 1.0 A pilot and 1.0 A main valve current
rating. S8610 and S8670 provide up to 1.0 A pilot and 2.0
Amainvalvecurrentrating. Minimumambienttemperature
rating is -40  F [-40  C]. Maximum ambient rating is +175 
F [+79  C] for S8600, S8660 and for S8610, S8670 used
with 1.0 A or less main valve. Maximum ambient rating for
S8610, S8670 used with 1.0 to2.0 A main valve is +165  F
[+74  C]. See Table I for a summary of other differences
between models.
TABLE 1—INTERMITTENT PILOT IGNITION MODULES.
a
If established flame is lost, all models restart ignition trial.
PLANNING THE INSTALLATION
Intermittent pilot systems are used on a wide variety of
centralheating equipment and onheatingappliances such
as commercial cookers, agricultural equipment, industrial
heating equipment and pool heaters. Some of these appli-
cations may make heavy demands on the controls, either
becauseoffrequentcycling,orbecauseofmoisture,corro-
sivechemicals,dust or excessive heat in the environment.
In these situations, special steps may be required to pre-
vent nuisance shutdowns and premature control failure.
TheseapplicationsrequireHoneywellResidentialDivision
Engineering review; contact your Honeywell Sales Repre-
sentative for assistance.
FREQUENT CYCLING
These controls are designed for use on space heating
appliances that typically cycle 3 to 4 times an hour during
theheatingseasonandnotatallduringthecoolingseason.
Inanapplicationwithsignificantlygreatercyclingratesand
closertoyear-rounduse,werecommendmonthlycheckout
because the controls may wear out more quickly.
WATER OR STEAM CLEANING
Once a module or gas control has been wet, it may
operateunreliablyandmustbereplaced.Iftheapplianceis
likely to be cleaned with water or steam, the controls and
associatedwiringshouldbecoveredsowaterorsteamflow
cannot reach them. The controls should be high enough
above the bottom of the cabinet so they will not be subject
tofloodingorsplashingduringnormalcleaningprocedures.
If necessary, shield the controls to protect them from
splashing water.ANEMA 4enclosure isrecommended for
the ignition module; see the Electronic Ignition Service
Manual, form 70-6604.
HIGH HUMIDITY OR DRIPPING WATER
Over time, dripping water or high ambient humidity can
create unwanted electrical paths on the module circuit
board,causingthemoduletofail. Never installanappliance
where water can drip on the controls.
In addition, high ambient humidity can cause the gas
control to corrode, and finally to fail.
Wheretheappliancemaybeinstalledinahumidatmos-
phere,makesureaircirculationaroundthemoduleandgas
control is adequate to prevent condensation. It’s also im-
portant to regularly check out the system. A NEMA 4
enclosure may be needed; see the Electronic Ignition
Service Manual, form 70-6604.
INTERMITTENT PILOT MODULES
S8600, S8610, S8660, S8670
MODEL
IGNITER-
SENSOR
TYPE
TYPE
OF GAS
PREPURGE
TIMING
100
PERCENT
SHUTOFF
LOCKOUT
TIMING
IGNITION
SEQUENCEa
S8600A,
S8610A
Separate
Natural
None
No
No
Spark on until pilot
lightoff or manual
shutoff; pilot valve
open until manual
shutdown.
S8600F,
S8610F
Combination
S8600B,
S8610B
Separate
Natural
or LP
None
Yes, at
lockout
15 or 90
sec. max.,
as ordered
Spark on until
lightoff or lockout;
pilot valve closes
on lockout.
S8600H,
S8610H
Combination
S8600M
Combination
Natural
or LP
None
Yes, at 90
sec. max.
No,
continuous
retry
Spark and pilot gas
on until shutoff.
After 5 min. min.
(6 min. nom.) delay,
ignition starts again.
Ignition, wait, retry
repeats until pilot
lights or system is
shut down manually.
S8660D,
S8670D
Combination
Natural
or LP
45 sec.
Yes, at
lockout
15 or 90
sec. max.,
as ordered
Ignition trial follows
prepurge; sparkon
until lightoff or
lockout; pilotvalve
closes on lockout.

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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CORROSIVE CHEMICALS
Corrosivechemicalscanalsoattackthemoduleandgas
control and eventually cause a failure. Where chemicals
maybeusedroutinelyforcleaning,makesurethecleaning
solution cannot reach the controls. Where chemicals are
likely to be suspended in air, as in some industrial and
agricultural applications, protect the ignition module from
exposure with a NEMA 4 enclosure; see the Electronic
Ignition Service Manual, form 70-6604.
DUST OR GREASEACCUMULATION
Heavy accumulation of dust or grease may cause the
controls to malfunction. Where dust or grease may be a
problem,providecoversforthemoduleandthegascontrol
INSTALLATION
WHEN INSTALLING THIS IGNITION SYSTEM…
1. Read these instructions carefully. Failure to follow
themcoulddamagethecomponentsorcauseahazardous
condition.
2. Check the ratings given in the instructions and onthe
components to make sure they are suitable for your appli-
cation.
3. Installer must bea trained, experienced service tech-
nician.
4. After installation is complete, check out component
operation as provided in these instructions.
that will limit environmental contamination. A NEMA 4
enclosureisrecommendedfortheignitionmodule;seethe
Electronic Ignition Service Manual, form 70-6604.
HEAT
The controls can be damaged by excessively high
temperatures. Make sure the maximum ambient tempera-
ture at the control locations will not exceed the rating of the
control. If the appliance normally operates at very high
temperatures,insulation,shielding,andaircirculationmay
be necessary to protect the controls. Proper insulation or
shielding should be provided by the appliance manufac-
turer; make sure adequate air circulation is maintained
when the appliance is installed.
• In many such applications, particularly commercial
cooking, the equipment operates 100,000-200,000
cyclesperyear.Suchheavycyclingcanwearoutthe
gas control in one to two years. A normal forced air
furnace, for which the controls were originally in-
tended, typically operates less than 20,000 cycles
per year.
• Exposure to water, dirt, chemicals, and heat can
damagethemodule orthegascontrolandshutdown
thecontrol system.ANEMA 4enclosurecanreduce
exposure to environmental contaminants. See Elec-
tronic Ignition Service Manual, form 70-6604.
Themaintenanceprogramshouldincluderegularcheck-
out of the system as outlined under Checkout, page 11.
Maintenancefrequencymustbedeterminedindividually
for each application. Some considerations are:
• Cyclingfrequency.Appliancesthatmaycyclemore
than 20,000 times annually should be checked
monthly.
• Intermittent use. Appliances that are used seasonally
should be checked before shutdown and again be-
fore the next use.
PERFORM PREINSTALLATION SAFETY INSPECTION
The preinstallation checks described in ANSI Standard
Z21.71 on page 19 must be done before the replacement
module is installed. If a condition which could result in
unsafe operation is detected, the appliance should beshut
off and the owner advised of the unsafe condition. Any
potentially unsafe condition must be corrected before pro-
ceeding with the installation.
Maintenance Requirements in Severe Environments
Regular preventive maintenance is important in any
application, but especially so in commercial cooking, agri-
cultural, and industrial applications because:
• = Consequence of unexpected shutdown. Where the
cost of an unexpected shutdown would be high, the
system should be checked more often.
• Dusty, wet, or corrosive environment. Since these
environments can cause the controls to deteriorate
more rapidly, the system should be checked more
often.
Any control should be replaced if it does not perform
properly on checkout or troubleshooting. In addition, re-
place any module if it is wet or looks like it has ever been
wet. Protective enclosures as outlined under “Planning the
Installation” arerecommended regardless ofcheckout fre-
quency.
MOUNT IGNITION MODULE
Select a location close enough to the burner to allow a
short (3 ft. [0.9 m] max.), direct cable route to the igniter.
Ambient temperature at the module must be within the
range listed under APPLICATION, page 1. The module
must be protected from water, moisture, corrosive chemi-
cals and excessive dust and grease.
FIRE OR EXPLOSION HAZARD
MAY CAUSE PROPERTY DAMAGE, SEVERE
INJURY OR DEATH
Donotattempttotakethemoduleapartortoclean
it. Improper reassembly and cleaning may cause
unreliable operation.
1. Disconnectpowersupplybeforebeginningwiring
to prevent electrical shock or equipment damage.
2. If a new gas control is to be installed, turn off gas
supply before starting installation. Conduct Gas
Leak Test according to gas control manufac-
turer’s instructions after the gas control is in-
stalled.
3. If module must be mounted near moisture or
water, provide suitable waterproofenclosure.
CAUTION
WARNING
CAN CAUSE SERIOUS INJURY OR DEATH.
1. The ignition module can malfunction if it gets
wet,leadingtoaccumulationofexplosivegas.
• Never install where water can flood, drip or
condense on module.
• Never try to use a module that has been
wet—replace it.
2. Liquefied petroleum (LP) gas is heavier than
air and will not vent upward naturally.
• Do not light pilot or operate electric
switches,lights,orappliances untilyouare
sure the appliance area is free ofgas.
WARNING

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Werecommendmountingthemodulewiththeterminals
down to protect them from dripping water and dust. It can
alsobe mountedwith the terminalsoneitherside.DONOT
MOUNT with terminals pointing up. Fasten securely with
four No. 6-32 machine or No. 8 sheetmetalscrews.
MOUNT THE SYSTEM CONTROLS
Mount any required controls, such as the gas control,
spark igniter, flame sensor, thermostat, limit and trans-
former according to manufacturer’s instructions.
WIRE THE SYSTEM
Connect Ignition Cable
Use Honeywell ignition cable or construct an ignition
cable that conforms tosuitable national standards such as
Underwriters Laboratories Inc. See Tables 2 and3.
TABLE 2—HONEYWELL PREASSEMBLED IGNITION
CABLES (UL STYLE 3257).
CABLE
PART
NUMBER
LENGTH
MODULE
END
IGNITER END
394800-30
30 in.
1/4 in. quick
connect,
insulated
Rajah connec-
tor receptacle,
90 deg. rubber
boot
394801-30
30 in.
1/4 in. quick
connect,
insulated
Rajah connec-
tor receptacle,
straight rubber
boot
TABLE 3—RECOMMENDED IGNITION CABLE FOR
FIELD ASSEMBLY.
CABLE
TYPE
VOLTAGE
RATING (rms)
TEMPERATURE
RATING
C
F
UL Style 3217
10,000
150
302
UL Style 3257
10,000
250
484
Cablemustbenolongerthan36in.[0.9m].Toconstruct
a cable, fit one end of ignition cable with 1/4 in. diameter
Rajah connector receptacle and the other with a 1/4 in.
female quick connect. Protect both ends with insulated
boots.
NOTE:Thecablemustnotrun incontinuous contactwitha
metal surface or spark voltage will be greatly reduced.
Use ceramic or plastic standoff insulators as required.
To install:
1. Connect one end of the cable to the male quick
connect SPARK terminal on the ignition module.
2. Connect the other end of the cable to the igniter or
igniter-sensor stud on the pilotburner/igniter-sensor.
Connect Vent Damper
The D80B Vent Damper can be used with all ignition
modules, although the Molex plug provided on some mod-
ules simplifies wiring connections when used with the D80D
Plug-In Vent Damper. Once a module with vent damper
plughaspoweredaventdampercircuit,itcannotbeused
ina gassystem without avent damper.Anon-replaceable
fuse in the module blows on initial power-up. Once this fuse
has blown the module won’t work unless the vent damper
is connected.
To connect the plug-in model to D80D:
1. Removetheplugfromtheterminalstripontheignition
module case and discard.
2. Usingthewiringharnesssupplied,insertthematching
pin plug into receptacle on case and other end to vent
damper.
To connect the D80B, follow the wiring diagrams sup-
plied with the vent damper or see Fig. 7 for typical connec-
tions.
Connect Ignition Module
1. Connectremainingsystemcomponentstotheignition
module terminals as shown in the appropriate wiring dia-
gram, Figs. 1 to 10.
• Fig. 1 is a basic circuit for a heating only atmos-
pheric burner with S8600F,H,M; S8610F,H;
S8660D or S8670D.
• Fig. 2 shows S8600F,H,M; S8610F,H with vent
damperplugin aheatingonlyatmosphericburner
systemwithD80Dventdamper. Never useavent
damper in an LP gas system or in a fan-assisted
combustion system.
• Figs. 3 and 4 show S8600A,B; S8610A,B with
separate sensor and igniter, with and without the
D80D vent damper.
• Figs.5-10showS8600F,H,M;S8610F,H;S8660D;
andS8670Dinavarietyofsystems,withalternate
connections for modules with vent damper plug.
Remember, however, that a vent damper should
notbeusedinanfan-assistedcombustionsystem
oranLPgassystemandthattheventdamperplug
must not be removed except to connect the mod-
ule to a D80D with the plug-in cable. S8600A,B;
S8610A,Bcanbesubstitutedinthesedrawingsby
simplyconnectingtheigniterandsensorasshown
in Figs. 3 and 4.
2. Refer to heating appliance manufacturer’s instruc-
tions for wiring auxiliary controls.
3. Adjust thermostat heat anticipator to match system
current draw. The current draw equals the total current
required for the ignition module (0.2 A)plus the gas control
and any other auxiliary equipment in the control circuit.
Connect Gas Control
Use No 18 gauge solid or stranded wire. Use 1/4 in.
female quickconnects formoduleconnections. Connectto
gas control terminals as shown in wiring diagrams, using
terminals appropriate to the gas control.
IMPORTANT
1. As shown in the wiring diagrams, a common ground is
required on:
a. The pilot burner mounting bracket,and
b. The GND(BURNER) terminal on the ignition module.
Failure to use the GND(BURNER) termi- nal may result in
intermittent loss of spark and/or loss of flame current
sensitivity.
2. Make sure the transformer has adequate VA. The ignition
module requires at least 0.2 A at 24 Vac. Add the current
draws of all other devices in the control circuit, including
thepilotandmainvalves inthegascontrol,andmultiplyby
24 to determine the total VA requirement of these
components. Add this total to 4.8 VA (for the ignition
module). The result is the minimum transformer VA
rating. Use a Class II transformer if replacement is re-
quired.
1. Check the wiring diagram furnished by the appli-
ance manufacturer, if available, for circuits differ-
ing from the wiring hookups shown. Carefully
follow any special instructions affecting the gen-
eral procedures outlined below.
2. Disconnect the power supply before making wir-
ing connections to prevent electrical shock or
equipment damage.
CAUTION

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24V OPEN. DO NOT REMOVE VENT DAMPER PLUG.
OPERATOR OPERATOR
THERMOSTAT
2
LIMIT
CONTROLLER
Q345, Q346,
Q348, Q362, Q381
PILOT BURNER/
IGNITER-SENSOR
PILOT BURNER
GROUND
L1
(HOT)
L2
1
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3 MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND
LEG TO TRANSFORMER.
5 FOR MODULE WITH TH-W TERMINAL AND VENT DAMPER PLUG, CONNECT THERMOSTAT TO TH-W. LEAVE
M1175C
Ground Control System
The igniter, flame sensor and ignition module must
shareacommongroundwiththemainburner.Usethermo-
plasticinsulated wire withaminimumratingof105  C[221 
F] for the ground wire; asbestos insulation is not accept-
able. If necessary, use a shield to protect the wire from
radiant heat generated by the burner. Connect the ground
wire as follows:
1. Fit one end of the ground wire with a female 1/4 in.
quick-connect terminal and connect it to the male quick-
connect GND(BURNER) terminal on the ignition module.
2. Strip the other end of the wire and fasten it under the
igniter bracket mounting screw. If necessary, use a shield
to protect the ground wire from radiant heat.
3. The burner serves as the common grounding area. If
thereisnotgoodmetal-to-metalcontactbetweentheburner
and ground, run a lead from the burner toground.
NOTE: “Earth” ground is not required.
REPLACING MODULE WITH TH-R, TH-W TERMINALS
On modules that do not have a vent damper plug, the
thermostat must be connected between the transformer
and the 24V terminal on the module. To change out a
module with TH-R, TH-W terminals:
1. Remove the wires from the 25V(2) and TH-R termi-
nals on the old module. Connect these two wires with a
solderless connector.
2. Tag and remove the remaining wires from the old
module.
3. Removetheoldmoduleandmountthenewoneinthe
same location.
4. Reconnect the remaining wires as shown in Table 4.
5. Increase the thermostat anticipator setting by 0.2 A.
TABLE 4—TERMINAL CROSS REFERENCE.
Fig. 1—S8600F,H,M; S8610F,H; S8660D; S8670D connections in a heating system with an atmospheric burner
4
MAIN
PILOT COM VALVE
3
5
PILOT GAS
SUPPLY
DUAL VALVE COMBINATION
GAS CONTROL
2ND
1ST
SPARK
5 VENT
DAMPER
PLUG (OPT)
GND 24V (OPT)
TH-W
24V
GND
MV MV/PV PV (BURNER)
S8600F,H,M; S8610F,H; S8660D; S8670D
TERMINAL ON
OLD MODULE:
TERMINAL ON
NEW MODULE:
25 V (1)
24 V (GND)
TH-W
24 V
MV
MV
MV/PV
MV/PV
PV
PV
GND (Burner)
GND (Burner)

5
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Fig. 2—S8600F,H,M; S8610F,H with a vent damper plug in a heating system with an atmospheric burner and a D80D
vent damper.
M1176D
5 REMOVE PLUG ONLY IF USING VENT DAMPER.
FUSEBLOWSONSTARTUPWHENPLUGISREMOVED;
THEN MODULE WILL OPERATE ONLY WHEN VENT
DAMPER IS CONNECTED.
PILOT BURNER
GROUND
PILOT GAS
SUPPLY
Q345, Q346,
Q348, Q362, Q381
PILOT BURNER/
IGNITER-SENSOR
1
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
L1
(HOT)
L2
3 MAXIMUM CABLE LENGTH 3 FEET [0.9 METERS].
LIMIT
4
CONTROLLER
2 ALTERNATE LIMIT CONTROLLER LOCATION.
D80D VENT
DAMPER
2
DUAL VALVE COMBINATION
GAS CONTROL
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
THERMO-
STAT
1ST 2ND
OPERATOR OPERATOR
MAIN
VALVE
PILOT COM
3
197516A
WIRING
HARNESS
SPARK
DAMPER
PLUG
5 VENT
24V
GND 24V TH-W
S8600F,H,M; S8610F,H
GND
MV MV/PV PV (BURNER)
PILOT GAS
SUPPLY
LIMIT
CONTROLLER
GROUND
IGNITER
1
L2
L1
(HOT)
4
3
MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
5 FOR MODULE WITH TH-W TERMINAL AND VENT
DAMPER PLUG, CONNECT THERMOSTAT TO TH-W.
LEAVE 24V OPEN. DO NOT REMOVE VENT DAMPER PLUG.
M1186C
SENSOR
ANDOVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
2
DUAL VALVE COMBINATION
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS GAS CONTROL
OPERATOR OPERATOR
THERMOSTAT
2ND
1ST
MAIN
PILOT COM
VALVE
3
5
5 VENT
DAMPER
PLUG (OPT) SENSE SPARK
GND 24V (OPT)
TH-W
24V
S8600A,B; S8610A,B
GND
MV MV/PV PV (BURNER)
Fig. 3—S8600A,B; S8610A,B connections in a heating system with an atmospheric burner.

6
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Fig. 4—S8600A,B; S8610A,B with vent damper plug in an atmospheric burner heating system with a D80D vent
damper.
PILOT GAS
SUPPLY
5 REMOVE PLUG ONLY IF USING VENT DAMPER.
M1185D
LIMIT
CONTROLLER
GROUND
IGNITER
1
L2
L1
(HOT)
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
4
3 MAXIMUM CABLE LENGTH 3 FEET [0.9 METERS].
D80D VENT DAMPER
SENSOR
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
2
DUAL VALVE COMBINATION
GAS CONTROL
THERMOSTAT
197516A
WIRING
HARNESS
1ST 2ND
OPERATOR OPERATOR
MAIN
VALVE
PILOT COM
3
SENSE SPARK
5
VENT
DAMPER
PLUG
24V
GND 24V TH-W
S8600A,B; S8610A,B
GND
MV MV/PV PV (BURNER)
M1177C
L2 L1
(HOT)
1
PILOT GAS
SUPPLY
COMBUSTION
1
AIR BLOWER
MOTOR
GROUND
5 FOR MODULE WITH TH-W TERMINAL AND VENT
DAMPER PLUG, CONNECT THERMOSTAT TO TH-W.
LEAVE 24V OPEN. DO NOT REMOVE VENT DAMPER PLUG.
PILOT
BURNER
Q345, Q346,
Q348, Q362, Q381
PILOT BURNER/
IGNITER-SENSOR
LIMIT
CONTROLLER
L2
L1
(HOT)
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3 MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
4
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
1ST 2ND
OPERATOR OPERATOR
2
DUAL VALVE COMBINATION
GAS CONTROL
COMBUSTION
AIR BLOWER
RELAY
THERMOSTAT
AIR
PROVING
SWITCH
MAIN
PILOT COM VALVE
3
5
SPARK
5 VENT
DAMPER
PLUG (OPT)
GND 24V (OPT)
TH-W
24V
GND
MV MV/PV PV (BURNER)
S8600F,H,M; S8610F,H; S8660D; S8670D
Fig. 5—S8600F,H,M; S8610F,H; S8660D; S8670D connections in a heating system with power-assisted
combustion.

7
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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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S8600F,H,M;S8610F,H;S8660D; S8670D
5 VENT
GND 24V TH-W DAMPER
MV MV/PV PV (BURNER) GND 24V (OPT) PLUG (OPT) SPARK
5
3
PILOT COM
GROUND
MAIN
VALVE
STAGE 1
MAIN VALVE
STAGE 2
THERMOSTAT
AIR
PROVING
SWITCH
1ST
OPERATOR 2ND
OPERATOR
2
Q345, Q346,
Q348, Q362,
TWO STAGE DUAL VALVE
COMBINATION GAS CONTROL
COMBUSTION
AIR BLOWER
RELAY
4
Q381PILOT
BURNER/
IGNITER-
SENSOR
PILOT
BURNER
GROUND
PILOT GAS
SUPPLY
LIMIT
CONTROLLER
1 L1 L2
L1 L2
(HOT) 1
COMBUSTION
AIR BLOWER
MOTOR
(HOT) M1178C
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3
MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND LEG TOTRANSFORMER.
5
FORMODULEWITHTH-WTERMINAL ANDVENTDAMPERPLUG,CONNECT THERMOSTATTOTH-W. LEAVE
24V OPEN. DO NOT REMOVE VENT DAMPERPLUG.
Fig.6—S8600F,H,M; S8610F,H; S8660D; S8670Dconnections ina heatingsystem with atwo-stage gas
control and power-assisted combustion.
R W2 W1

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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S8600F,H,M;S8610F,H;S8660D; S8670D
5 VENT
GND 24V TH-W DAMPER
MV MV/PV PV (BURNER) GND 24V (OPT) PLUG (OPT) SPARK
PILOT
COM
MAIN
VALVE
5
END SWITCH
N.O. N.C.
3
D80B
1ST 2ND
OPERATOR OPERATOR
DUAL VALVE COMBINATION
GAS CONTROL
1K2
1K1
R
Q345, Q346,
Q348, Q362, Q381
PILOT BURNER/
IGNITER-SENSOR
PILOT
BURNER
GROUND
PILOT GAS
SUPPLY 4
1K3
1 2 3 4 5
6
L2
L1
(HOT)
1
TRANSFORMER
LIMIT 2
CONTROLLER
THERMOSTAT
OR
CONTROLLER
LIMIT
CONTROLLER
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3 MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND LEG TOTRANSFORMER.
5 FORMODULEWITH TH-W TERMINAL AND VENT DAMPER PLUG, CONNECT THERMOSTAT TOTH-W.
LEAVE 24V OPEN. DO NOT REMOVE VENT DAMPERPLUG.
6 COLORS REFER TO WIRE HARNESS, IF USED.
M1180C
Fig. 7—S8600F,H,M; S8610F,H; S8660D; S8670D in a heating system with an atmospheric burner and a
D80B vent damper.
1K
BLACK
MOTOR
ORANGE
RED
YELLOW
BLUE

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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S8600F,H,M; S8610F,H; S8660D;S8670D
GND 24V TH-W
DAMPER
MV MV/PV PV (BURNER)
GND 24V (OPT)
PLUG (OPT) SPARK
PILOT COM
5 3
MAIN
VALVE
1ST 2ND
OPERATOR OPERATOR
DUAL VALVE COMBINATION
GAS CONTROL
L2 L1
(HOT)
1
R8239
THERMOSTAT
R G
W Y
L1
(HOT)
L2
1
COMBUSTION
AIR BLOWER
Q345, Q346,
Q348, Q362,
Q381PILOT
BURNER/
IGNITER-
SENSOR
PILOT
BURNER
GROUND
PILOT GAS
SUPPLY
LIMIT
CON-
TROLLER
FAN
CENTER
4
R C
W G Y
MOTOR
COMBUSTION
AIR BLOWER
RELAY
COIL
FAN
MOTOR
FAN
CONTROL
C H
2 AIR PROVING
SWITCH
1
POWER SUPPLY. PROVIDE DISCONNECTMEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2
ALTERNATE LIMIT CONTROLLER LOCATION.
3
MAXIMUM CABLE LENGTH 3 ft [0.9m].
4
CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
5
FORMODULE WITH TH-W TERMINAL AND VENT DAMPER
PLUG, CONNECT THERMOSTAT TO TH-W. LEAVE
24VOPEN. DO NOT REMOVE VENT DAMPER PLUG.
M1182C
Fig. 8—S8600F,H,M; S8610F,H; S8660D; S8670D connections in a heating-cooling system with power-
assisted combustion.
PRESSURE
CONTROLLER
COOLING
CONTROL
L

10
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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S8600F,H,M; S8610F,H; S8660D; S8670D
4 VENT
GND 24V TH-W
DAMPER
MV MV/PV PV (BURNER)
GND 24V (OPT)
PLUG (OPT) SPARK
PILOT COM
4 3
MAIN
1ST 2ND
VALVE
OPERATOR OPERATOR
DUAL VALVE COMBINATION
1K
GAS CONTROL
D80D
1K1
N.C.
N.O.
4
D80 MOTOR
C.
1K3
3
1K2
2 1
Q345, Q346,
Q348, Q362,
Q381PILOT
BURNER/
IGNITER-
SENSOR
PILOT
BURNER
GROUND
PILOT GAS
SUPPLY
CABLE
2
L1
(HOT)
1
BLUE
YELLOW
G
L1
5
BLACK
TP
1K
ORANGE
B R
L8148J
1K1
1K3
Z W T
TV
1K2
AUTO
MANUAL
SWITCH
C1
FAN
MOTOR
L2
L2
B3 B2 B1 C2
M1181C
THERMOSTAT
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 CUT PLUG OFF MODULE END OF D80D WIRE HARNESS, CONNECT LEADWIRE COLORS AS SHOWN.
3 MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 FOR MODULE WITH TH-W TERMINAL AND VENT DAMPER PLUG, CONNECT THERMOSTAT TO TH-W.
LEAVE 24V OPEN. DO NOT REMOVE VENT DAMPER PLUG.
5 LEAVE TP-Z AND Z-W JUMPERS IN PLACE.
Fig. 9—S8600F,H,M; S8610F, H; S8660D; S8670D connections in a hydronic heating sytem with a
D80D vent damper.

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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V
V
V
Fig. 10—S8600F,H,M; S8610F,H; S8660D; S8670D connections in a commercial water heater control system.
CHECKOUT
Check out the gas control system:
• At initial installation of the appliance.
• Aspart of regular maintenance procedures. Mainte-
nance intervals are determined by the application.
See PLANNING THE INSTALLATION, page 1, for
more information.
• As the first step in troubleshooting.
• Any time work is done on the system.
STEP 1: Perform Visual Inspection.
❏ With power off, make sure all wiring connections are
clean and tight.
❏ Turn on power to appliance and ignition module.
❏ Open manual shutoff valves in the gas line to the
appliance.
❏ Dogasleak test ahead ofgascontrolif pipinghas been
disturbed.
GASLEAKTEST:Paintpipejointswithrichsoapandwater
solution. Bubbles indicate gas leak. Tighten joints to stop
leak. Recheck with soap and water.
STEP 2: Review Normal Operating Sequence and Module
Specifications.
❏ See OPERATION, page 12, and APPLICATION,
page 1.
STEP 3: Reset the Module.
❏ Turn the thermostat to its lowest setting.
❏ Wait one minute.
AsyoudoSteps4and5,watchforpointswhereoperation
deviates from normal. Refer to Troubleshooting Chart to
correct problem.
STEP 4: Check Safety Shutoff Operation.
This step applies to lockout and continuous retry modules
only.
❏ Turn gas supply off.
❏ Setthermostat orcontroller aboveroom temperature to
call for heat.
❏ Watch for spark at pilot burner either immediately or
following prepurge. See device label.
❏ Time spark from start to shutoff. See devicelabel.
On S8600M, wait 6 min. nom. Ignition sequence should
start again followed by shutoff after 90 sec. max.
❏ Openmanualgascockandmakesurenogas isflowing
to pilot or main burner.
❏ Set thermostat below room temperature and wait one
minute before continuing.
STEP 5: Check Normal Operation.
❏ Set thermostat or controller above room temperature to
M1179A
GROUND
PILOT GAS
SUPPLY
3 MAXIMUM CABLE LENGTH 3 ft [0.9 m].
4 CONTROLS IN 24V CIRCUIT MUST NOT BE IN
GROUND LEG TO TRANSFORMER.
5 DO NOT REMOVE VENT DAMPER PLUG.
6 REMOVE JUMPER AND CONNECT SENSE
TERMINAL ON TWO ROD APPLICATION ONLY.
L1 L 2
(HOT)
1
1 POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION AS
REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
4
DUAL VALVE COMBINATION
GAS CONTROL
L8100
2
ECO
CONTROLLER
OPERATOR OPERATOR
MAIN
VALVE
COM
2ND
PILOT
1ST
3
6
5
SPARK
SENSE
VENT
DAMPER
PLUG
24V TH-W
GND 24 (OPT)
GND
M MV/P PV (BURNER)
4
S8610
U
FAILURE TO HEED THESE WARNINGS MAY
CAUSE FIRE OR EXPLOSION WITH PROPERTY
DAMAGE, INJURY, OR LOSS OF LIFE.
1. If you smell gas or suspect a gas leak, turn off
gas at manual service valve and evacuate the
building. Do not try to light any appliance, do
nottouchany electricalswitch ortelephone in
the building until you are sure no spilled gas
remains.
2. Gas leak test must be done as described in
Steps 1 and 5 below on initial installation and
any time work is done involving the gas pip-
ing.
WARNING

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44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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call for heat.
❏ Make sure pilot lights smoothly when gas reaches the
pilot burner.
❏ Make sure main burner lights smoothly without flash-
back.
❏ Make sure burner operates smoothly without floating,
lifting, or flame rollout to the furnace vestibule or heat
buildup in the vestibule.
OPERATION
Module operation can be conveniently divided into two
phasesforS8600,S8610andthreeforS8660,S8670. The
phases are
• Prepurge (S8660, S8670 only)
• Trial for ignition (all models)
• Main burner operation (all models)
Figs. 11 and 12 summarize the normal operating se-
quences of the modules.
❏ If gas line has been disturbed, complete gas leak test.
GAS LEAK TEST: Paint gas control gasket edges and all
pipeconnectionsdownstreamofgascontrol,includingpilot
tubing connections, with rich soap and water solution.
Bubbles indicate gas leaks. Tighten joints and screws or
replace component to stop gas leak. Recheck with soap
and water.
❏ Turn thermostat or controller below room temperature.
Make sure main burner and pilot flames goout.
PREPURGE (S8660,S8670 ONLY)
When the S8660 is used in a fan-assisted combustion
system, the combustion air blower starts on a call for heat.
On proof of airflow, the air proving switch closes and
energizes the S8660, S8670. When the module is used in
an atmospheric system, the call for heat energizes the
module.
In either case, the module first initiates a 45 sec. delay
toallowsystemprepurge.Afterprepurge,themodulestarts
the pilot ignition sequence.
START
STAGE 1
TRIAL FOR
IGNIITION
3
Pilot burner lights.
Module senses
flame current.
PILOT BURNER OPERATION
Pilot burner does not light.
OR Module Response
S8600A,F
S8610A,F
Ignition spark continues, pilot
valve remains open until system
is reset
S8600B,H
S8610B,H
After 15 or 90 seca system
locks out; must be
manually reset.
S8600M
After 90 sec.a system shuts off;
after 5 minutes min. (6 minutes
nom.), module restarts trial for
ignition; ignition trial, shutoff, wait
sequence repeats until pilot lights
or call for heat ends.
a Shutoff/lockout timing is stamped on module
STAGE 2
MAIN BURNER
OPERATION
END
POWER INTERRUPTION
System shuts off, restarts when power is
restored.
PILOT FLAME FAILURE
Main valve closes.
Module starts trial for ignition.
M1172B
Fig. 11—S8600, S8610 normal operating sequence.
6 THERMOSTAT (CONTROLLER)
SATISFIED
Valves close, pilot and main
burners are off.
5 MAIN BURNER OPERATION
Module monitors pilot flame
current.
4 FLAME CURRENT SENSED
Spark generator off.
Second valve operator (main)
opens.
2 SPARKGENERATORPOWERED
Firstvalve(pilot)operator opens
1 1THERMOSTAT (CONTROLLER)
CALLS FOR HEAT

13
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Pilot burner does not light.
TRIAL FOR IGNITION
Pilot Ignition
Followingprepurgetiming(S8660,S8670),oronthecall
for heat (S8600, S8610), the module energizes the first
main valve operator. The first main valve opens, which
allows gas to flow to the pilot burner. At the same time, the
electronic spark generator in the module produces an over
10,000 volt spark pulse output. The voltage generates a
sparkattheigniter(S8600A,B;S8610A,B)origniter-sensor
(S8600F,H,M; S8610F,H; S8660; S8670) that lights the
pilot.
If the pilot does not light, or the pilot flame current is not
atleast 1.0  Aandsteady, the modulewillnotenergize the
second (main) valve and the main burner will not light.
S8600A,F; S8610A,F will continue to spark as long as the
thermostat calls for heat, or until the pilotlights.
Safety Lockout (S8600B,H; S8610B,H; S8660D;S8670D)
These modules provide 100 percent shutoff and safety
lockout. A timer in these models starts timing the moment
thetrialforignitionstarts.Ignitionsparkcontinues only until
the timed trial for ignition period ends. Then the module
goes into safety lockout. Lockout de-energizes the first
mainvalveoperatorandcloses thefirstmain(pilot)valve in
thegas control, stoppingpilot gas flow. The control system
must be reset by setting the thermostat below room tem-
perature for one minute or by turning off power to the
module for one minute.
Safety Shutoff with Continuous Retry (S8600M)
TheS8600Mprovides100percentgasshutoff,followed
byretryforignition.Operationonignitionfailureisthesame
aslockoutmodules,exceptthatatimerstarts timing imme-
diately following shutoff. Six minutes nom. (five minutes
min.) after shutoff, the module restarts the ignition se-
quence.Theignitiontrial,shutoff,waitsequencecontinues
until either the pilot lights or the thermostat is set below
room temperature to end the call for heat. The module can
alsoberesetbysettingdownthethermostatforoneminute.
MAIN BURNER OPERATION
Whenthepilot flame isestablished,aflamerectification
circuitiscompletedbetweenthesensorandburnerground.
The flame sensing circuit in the module detects the flame
current, shuts off the spark generator and energizes the
secondmainvalveoperator.Thesecondmainvalveopens
and gas flows to the main burner, where it is ignited by the
pilot burner. On lockout models, the flame current also
holds the safety lockout timer in the reset (normal) operat-
ing condition.
Whenthecallforheatends,bothvalveoperatorsarede-
energized, and both valves in the gas controlclose.
Fig. 12—S8660, S8670 normal operating sequence.
OR After 15 or 90 seca , system
locks out; must be manually reset.
a Lockout timing is
stamped on module.
Pilot burner lights.
S8660, S8670 senses flame
current.
THERMOSTAT
CALLS FOR HEAT
1
START
STAGE 1
PREPURGE
2
PREPURGE
Combustion air blower starts.
STAGE 2
TRIAL FOR IGNITION
3
SPARK GENERATOR POWERED
First valve (pilot) operator opens.
4
PILOT BURNER OPERATION
END
7 THERMOSTAT SATISFIED
Valves close, pilot and main
burners are off.
M1171B
POWER INTERRUPTION
System shuts off, restarts when power is
restored.
PILOT FLAME FAILURE
Main valve closes.
S8660, S8670 starts trial for ignition.
STAGE 3
MAIN BURNER
OPERATION
6
MAIN BURNER OPERATION
Module monitors pilot flame
current.
5 FLAME CURRENT SENSED
Spark generator off.
Second valve operator (main)
opens.

14
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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TROUBLESHOOTING
❏ Energize the module and immediately touch oneend of
thejumper firmly to the GND terminalonthemodule. Move
the free end of the jumper slowly toward the SPARK
terminal until a spark is established.
❏ Pull the jumper slowly away from the terminal and note
the length of the gap when sparking stops. Check table
below.
Perform the checkout on page 11 as the first step in
troubleshooting.Thenchecktheappropriatetroubleshoot-
ing guide (Fig. 14 or 15) and the schematic diagram (Figs.
16-17)topinpointthecauseoftheproblem. Iftroubleshoot-
ing indicates an ignition problem, see Ignition System
Checks below to isolate and correct the problem.
Following troubleshooting,perform thecheckoutproce-
dure (page 11) again to be sure system is operating
normally.
IGNITION SYSTEM CHECKS
STEP 1: Check ignition cable.
Make sure:
❏ Ignition cable does not run in contact with any metal
surfaces.
❏ Ignition cable is no more than 36 in. [0.9 m]long.
❏ Connections to the ignition module and to the igniter or
igniter-sensor are clean and tight.
❏ Ignition cable provides good electrical continuity.
STEP 2: Check ignition system grounding. Nuisance shut-
downs are often caused by a poor or erratic ground.
❏ A common ground, usually supplied by the pilot burner
bracket, is required for the module and the pilot burner/
igniter-sensor.
• Check for good metal-to-metal contact between the
pilot burner bracket and the main burner.
• Check the ground lead from the GND(BURNER)
terminal onthemoduletothe pilotburner.Makesure
connections are clean and tight. If the wire is dam-
agedordeteriorated,replaceitwithNo.14-18gauge,
moisture-resistant,thermoplastic insulated wire with
105  C [221  F] minimum rating.
— Check the ceramic flame rod insulator for cracks
or evidence of exposure to extreme heat, which
canpermitleakagetoground.Replace pilot burner/
igniter-sensor and provide shield ifnecessary.
— If flame rod or bracket are bent out of position,
restore to correct position.
STEP 3: Check spark ignition circuit. You will need a short
jumper wire made from ignition cable or other heavily
insulated wire.
❏ Close the manual gas valve.
❏ Disconnecttheignitioncable at the SPARK terminal on
the module.
STEP 4: Check pilot and main burner lightoff.
❏ Set the thermostat to call for heat.
❏ Watchthepilotburnerduringtheignitionsequence.See
if:
• Ignition spark continues after the pilot is lit.
• The pilot lights and the spark stops, but main burner
does not light.
• S8600B,H,M;S8610B,H;S8660D;S8670Donly:The
pilotlights,thesparkstopsandmainburnerlights,but
the system shuts down.
❏ If so, ensure adequate flame current as follows.
• Turn off furnace at circuit breaker or fuse box.
• Clean the flame rod with emery cloth.
Fig. 13—Examples of unsatisfactory pilot flames.
Whenperformingthefollowingsteps,donottouch
stripped end of jumper or SPARK terminal. The
ignition circuit generates over 10,000 volts and
electrical shock can result.
IMPORTANT
1. Thefollowing service procedures are provided as
a general guide. Follow appliance manufacturer’s
service instructions if available.
2. On lockout and retry models, meter readings
between gas control and ignition module must be
taken within the trial for ignition period. Once the
ignition moduleshuts off,lockoutmodels mustbe
reset by setting the thermostat down for at least
one minute before continuing. On retry models,
wait for retry or reset at the thermostat.
3. If any component does not function properly,
makesure itiscorrectlyinstalledandwiredbefore
replacing it.
4. The ignition module cannot be repaired. If it mal-
functions, it must be replaced.
5. Only trained, experienced service technicians
should service intermittent pilot systems.
WARNING
ARC LENGTH
ACTION
No arc or arc less
than 1/8 in. [3 mm]
Checkexternalfuse,ifprovided.
Verify power at module input
terminal.
Replace module if fuse and
power ok.
Arc 1/8 in. [3 mm]
or longer.
Voltage output is okay.

15
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• Makesureelectrical connectionsarecleanandtight.
Replace damaged wire with moisture-resistant No.
18 wire rated for continuous duty up to 105  C [221 
F].
• Checkforcrackedceramicinsulator,whichcancause
short to ground, and replace igniter-sensor if neces-
sary.
• At the gas control, disconnect main valve wire from
the TH or MV terminal.
• Turnonpowerandsetthermostattocallforheat.The
pilot should light but the main burner will remain off
because the main valve actuator isdisconnected.
• Checkthepilotflame.Makesureitisblue,steadyand
envelops 3/8 to 1/2in.[10to13mm]ofthe flamerod.
See Fig. 13 for possible flame problems and their
causes.
• If necessary, adjust pilot flame by turning the pilot
adjustment screw on the gas control
clockwise to decrease or
counterclockwise to increase pilot flame. Fol-
lowing adjustment, always replace pilot adjustment
cover screw and tighten firmly to assure proper gas
control operation.
• Set thermostat below room temperature to end call
for heat.
❏ Recheck ignition sequence as follows.
• Reconnect main valve wire.
• Set thermostat to call for heat.
• Watch ignition sequence at burner.
• If spark still doesn’t stop after pilot lights, replace
ignition module.
• Ifmainburner doesn’t lightorifmainburnerlightsbut
systemlocksout,checkmodule,groundwireandgas
control as described in appropriate troubleshooting
chart, Fig. 14 or 15.
START
NO
YES NO
NO
YES
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
POWER TO MODULE?
(24V NOMINAL)
NOTE: If S86XXB,H,D,J goes into lockout, reset system. For S86XXC,M,U,J,K, wait 6 min.
nom. for retry or reset system.
CALL FOR HEAT ENDS
SYSTEM SHUTS OFF?
SYSTEM RUNS UNTIL
CALL FOR HEAT ENDS?
Check continuity of ignition cable and ground wire.
NOTE: If ground is poor or erratic, shutdowns may occur occasionally even though operation is normal at
the time of checkout.
Check that pilot flame covers flame rod and is steady and blue.
If checks are okay, replace module.
NOTE: If S86XXB,H,D,J goes into lockout, reset system. For S86XXC,M,U,J,K, wait 6 min.
nom. for retry or reset system.
SPARK STOPS WHEN
PILOT IS LIT?
Check continuity of ignition cable and ground wire.
Clean flame rod.
Check electrical connections between flame rod and module.
Check for cracked ceramic flame rod insulator.
Check that pilot flame covers flame rod and is steady and blue.
Adjust pilot flame.
If problem persists, replace module.
Spark okay?
Pull ignition lead and
check spark at module.
TURN GAS SUPPLY OFF.
TURN THERMOSTAT
(CONTROLLER) TO CALL
FOR HEAT
Check line voltage power, low voltage transformer, limit controller, thermostat (controller) and wiring. Also,
check air proving switch on combustion air blower system (if used) and that vent damper (if used) is open and
end switch is made.
Before troubleshooting, familiarize yourself with the startup and checkout procedure.
NOTE: Models with TH-W terminal (7) must have call for heat 24 Vac supply connected to the TH-W terminal.
Models with no TH-W terminal must have call for heat 24 Vac supply connected to 24V terminal (6).
TROUBLESHOOTING
ENDS
Check for proper thermostat (controller) operation.
Remove MV lead at module; if valve closes, recheck temperature controller and wiring; if not, replace gas
control.
MAIN BURNER LIGHTS?
Check for 24 Vac across MV-MV/PV terminals. If no voltage, replace module.
Check electrical connections between module and gas control. If okay, replace gas control or gas control
operator.
Check that all manual gas valves are open, supply tubing and pressures are good, and pilot burner orifice
is not blocked.
Check electrical connections between module and pilot operator on gas control.
Check for 24 Vac across PV-MV/PV terminals on module. If voltage is okay, replace gas control; if not,
replace module.
NOTE: It may be necessary to recycle the call for heat to clear the pilot supply tubes of air.
Check ignition cable, ground wiring, ceramic insulator and gap, and correct.
Check boot of the ignition cable for signs of melting or buckling. Take protective action to shield cable and
boot from excessive temperatures.
SPARK ACROSS
IGNITER/SENSOR GAP?
(S8660, S8670, S8680
HAVE 45 SECOND [NOMINAL]
PREPURGE BEFORE SPARK
STARTS.)
On models with vent damper plug, make sure vent damper
has not been installed, then removed. Replace vent damper
if necessary.
On other models, replace module.
TURN GAS SUPPLY ON
AND RECYCLE CALL
FOR HEAT
PILOT BURNER LIGHTS?
YES
Repeat procedure until troublefree operation is obtained.
Fig. 14—S8600, S8610 troubleshooting guide.

16
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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Fig. 15—S8660, S8670 troubleshooting guide.

17
69-0463
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
Website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 e-mail: [email protected]
2
LIMIT
ON-OFF
L1
(HOT) L2
CONTROLLER SWITCH
1
THERMOSTAT OR
CONTROLLER
2
24V
TRANSFORMER
24V
24V
(GND)
2K1
SPARK
DRIVE
CIRCUIT
ARC
GAP
1K
LOW
VOLTAGE 2K
POWER
SUPPLY 3K
3
FLAME
DETECTOR
CIRCUIT
RELAY
DRIVERS
HYBRID CIRCUIT
TIMING
CIRCUITS
SPARK
IGNITER
SENSOR
GND
(BUR-
NER)
BURNER
GROUND
MAIN
1K1 1K2 3K2
VALVE
MV
PILOT
MV/
PV
2K 3K1
VALVE
PV
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3K RELAY ON 100 PERCENT SHUTOFF MODELS ONLY. ON NON-SHUTOFF MODELS, PV AND MV
WIRED AS FOLLOWS.
TO 24V TO 24V (GND)
MAIN
INTERNAL WIRING
1K1
2K2
1K2
VALVE
MV
PILOT
VALVE
PV
MV/
PV
EXTERNAL WIRING
M1165C
Fig. 16—Representative schematic for S8600F,H, M; S8610F,H. See Fig. 1 for hookup. S8660 and S8670
are similar except the timing circuit includes a purge timer. See Fig. 6 for hookup.
3

18
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
Website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 e-mail: [email protected]
2
LIMIT ON-OFF
L1
(HOT) L2
CONTROLLER SWITCH
1
THERMOSTAT OR
CONTROLLER
2
24V
TRANSFORMER
24V
24V
(GND)
2K1
SPARK
DRIVE
CIRCUIT
ARC
GAP
SENSE
SENSOR
1K
LOW
VOLTAGE 2K
POWER
SUPPLY 3K
3
FLAME
DETECTOR
CIRCUIT
RELAY
DRIVERS
HYBRID CIRCUIT
TIMING
CIRCUITS
SPARK
IGNITER
GND
(BUR-
NER)
BURNER
GROUND
MAIN
1K1 1K2 3K2
VALVE
MV
PILOT
MV/
PV
2K 3K1
VALVE
PV
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2 ALTERNATE LIMIT CONTROLLER LOCATION.
3K RELAY ON 100 PERCENT SHUTOFF MODELS ONLY. ON NON-SHUTOFF MODELS, PV AND
3 MV WIRED AS FOLLOWS.
TO 24V
MAIN
TO 24V (GND) INTERNAL WIRING
EXTERNAL WIRING
1K1
2K
1K2
VALVE
MV
PILOT
VALVE
PV
MV/
PV
M1166C
Fig. 17—Representative schematic for S8600A,B; S8610A,B. See Fig. 3 for hookup.
2

19
69-0463
44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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ANSI STANDARDS
EXHIBIT A
RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING
APPLIANCE INSTALLATION AS A PRELIMINARY STEP TO APPLYING
AN AUTOMATIC INTERMITTENT PILOT SYSTEM
The following procedure is intended as a guide to aid
indeterminingthatanapplianceisproperlyinstalled and
is in a safe condition for continuing use.
This procedure is predicated on central furnace and
boiler installations equipped with an atmospheric gas
burner(s) and not of the direct vent type. It should be
recognized that generalized test procedures cannot
anticipate all situations. Accordingly, in some cases,
deviation from this procedure may be necessary to
determine safe operation of the equipment.
a. This procedure should be performed prior to any
attempt at modification ofthe appliance ortheinstal-
lation.
b. If it is determined there is a condition which could
result in unsafe operation, the appliance should be
shut off and the owner advised of the unsafe condi-
tion.
Thefollowing stepsshould befollowed inmaking the
safety inspection:
1. Conduct a Gas Leakage Test of the appliance
piping and control system downstream of the shutoff
valve in the supply line to the appliance.
2. Visually inspectthe ventingsystem forproper size
andhorizontal pitch and determine there is no blockage
orrestrictions,leakageorcorrosion orotherdeficiencies
which could cause an unsafe condition.
3. Shut off all gas to the appliance and shut off any
other fuel-burning appliance within the same room. Use
the shutoff valve in the shutoff valve in the supply line to
each appliance.
4. Inspect burners and crossovers for blockageand
corrosion.
5. Applicable only to warm air heating appliances.
Inspect heat exchangers for cracks, openings or exces-
sive corrosion.
6. Applicable only to boilers. Inspect for evidence of
water or combustion product leaks.
7. Insofar as is practical, close all building doors and
windows and all doors between the space in which the
appliance is located and other spaces of the building.
Turn on clothes dryers. Turn on any exhaust fans, such
as range hoods and bathroom exhausts, so they will
operate at maximum speed. Do not operate a summer
exhaust fan. Close fireplace dampers. If, after complet-
ing steps 7 through 12, it is believed sufficient combus-
tionairisnotavailable,referto1.3.4oftheNationalFuel
Gas Code (Z223.1) for guidance.
8. Placeinoperationtheappliancebeinginspected.
Follow the lighting instructions. Adjust thermostat so
appliance will operate continuously.
9. a. Determinethatthepilotisburning properlyand
that main burner ignition is satisfactory by inter-
ruptingandre-establishingtheelectrical supplyto
the appliance in any convenient manner.
b. Determinemanifold pressureinorderto match
input after the new control is installed.
a. Visuallydeterminethatmainburnergasisburn-
ing properly; i.e., no floating, lifting or flashback.
Adjust the primary air shutter(s) asrequired.
b. Ifapplianceisequippedwithhighandlowflame
controlorflamemodulation,checkforpropermain
burner operation at low flame.
11. Test for spillage at the draft hood relief opening
after 5 minutes of main burner operation. Use a draft
gauge, the flame of a match or candle, or smoke from a
cigarette, cigar or pipe.
12. Return doors, windows, exhaust fans, fireplace
dampers and all other fuel-burning appliances to their
previous conditions of use.
13. Applicable only to warm air heating appliances.
Check both limit controller and fan controller for proper
operation. Limit controller operation can be checked by
temporarily disconnecting the electrical supply to the
blower motor and determining that the limit control acts
to shut off the main burner gas.
14. Applicable only to boilers:
a. Determinethatthecirculatingwaterpumpsare
in operating condition.
b. Test low water cutoffs, automatic feed con-
trols,pressure andtemperature limit controlsand
relief valves in accordance with the
manufacturer’s recommendations and instruc-
tionstodetermine theyareinoperatingcondition.
EXHIBIT A OF ANSI STANDARD Z21.71 FOR AUTOMATIC INTERMITTENT PILOT IGNITION SYSTEMS FOR FIELD
INSTALLATION

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
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EXHIBIT B
PROCEDURE FOR INSTALLING AUTOMATIC INTERMITTENT PILOT SYSTEMS
Prior to beginning this procedure, a preliminary ex-
amination of the appliance and the automatic intermit-
tent pilot system should be made to determine that the
automatic intermittent pilot system can be properly
applied to the appliance.
Thisprocedure isintended as aguidetoaidinsafely
installing a listed automatic intermittent pilot system on
an existing listed appliance equipped with an atmos-
pheric gas burner(s) and not of the direct vent type.
This procedure is based on the assumption that the
history of the specific installation has been one of safe
and satisfactory operation.
This procedure is predicated oncentral furnace and
boiler installations, and it should be recognized that
generalizedprocedurescannotanticipateallsituations.
Accordingly, in some cases, deviation from this proce-
dure may be necessary to determine safe operation of
the equipment.
Thefollowingstepsshouldbefollowedinmaking the
modifications:
1. Perform a safety inspection of the existing appli-
ance installation. See Exhibit A for a recommended
procedure for such a safety inspection.
2. Shut off all gas and electricity to theappliance.To
shutoffgas,usetheshutoffvalveinthesupplylinetothe
appliance. Do not use the shutoff valve which is pro-
vided as part of a combination control.
3. Install the automatic intermittent pilot system in
strict accordance with the manufacturer’s installation
instructions.
4. Turn on all gas and electricity to theappliance.
5. Determine that the appliance transformer has
adequate capacity by following the steps outlined be-
low:
a. Computetheapproximatecurrentdrawbyadding
the current draw of the automatic intermittent pilot
system to (1) the current draw of the associated
valving, and (2) the current draw of any relays or
other devices operated by the transformer.
b. Multiplythetotalcurrentdrawascomputedabove
by 24 V to determine the total VA (volt-ampere)
required.
c. The total VA (volt-ampere) required should be
equaltoorlessthan theVAratingofthetransformer.
d. If the total VA (volt-ampere) required is greater
thantheVAratingofthetransformer,thetransformer
must be replaced with a Class 2 transformer of
adequate rating.
6. Check the heat anticipator in the comfort thermo-
stat to determine if it is properly adjusted to the current
draw of the control system. Follow the thermostat
manufacturer’s instructions.
7. Make certain wiring connections are tight and
wiresarepositionedandsecured sotheywill notbeable
to contact high temperature locations.
8. Conduct a Gas Leakage Test of the appliance
piping and control system downstream of the shutoff
valve in the supply line to the appliance.
9. a. Adjust the thermostat to its highest tempera-
turesetting,andtestmanifoldpressureandadjust
the pressure regulator to match original input as
required (refer to Exhibit A, step 9b).
b. Visually determine that main burner is burning
properly; i.e., no floating, lifting or flashback. Ad-
just the primary air shutter(s) as required.
10. If the appliance is equipped with high and low
flamecontrolorflamemodulation,checkforpropermain
burner operation at both high and low flame.
11. Determine that the pilot is igniting and burning
properly and that main burner ignition is satisfactory by
interrupting and re-establishing the electrical supply to
the appliance in any convenient manner. Make this
determination with the appliance burner both cold and
hot. Perform this step as many times as is necessary to
satisfy yourself that the automatic intermittent pilot sys-
tem is operating properly.
12. Test the pilot safety device (1) to determine if it is
operating properly, and (2) for turndown characteristics
accordingtothemanufacturer’s installationinstructions.
No adjustments should be made other than those rec-
ommended by the system manufacturer.
13. Sequence the appliance through at least three
operating cycles.
14. Applicable only to furnaces. Check both the limit
controller and the fan controller for proper operation.
Limit control operation can be checked by blocking the
circulating air inlet or temporarily disconnecting the
electrical supply to the blower motor and determining
that the limit controller acts to shut off the main burner
gas.
15. Applicable only toboilers.
a. Determinethatthecirculatingwaterpumpsare
in operating condition.
b. Test low water cutoffs, automatic feed water
controls, pressure and temperature limit control-
lers and relief valves in accordance with the
manufacturer’s recommendation to determine
they are in operating condition.
16. Add the labels (see 1.6.1-n and -o) on the appli-
ance.
EXHIBIT B OF ANSI STANDARD Z21.71 FOR AUTOMATIC INTERMITTENT PILOT IGNITION SYSTEMS FOR FIELD
INSTALLATION.