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Honeywell S8660 - page 1
TABLE 1—INTERMITTENT PILOT IGNITION MODULES. IGNITER- 100 SENSOR TYPE PREPURGE PERCENT LOCKOUT IGNITION MODEL TYPE OF GAS TIMING SHUTOFF TIMING SEQUENCE a S8600A, Separate Natural None No No Spark on until pilot S8610A lightoff or manual S8600F, Combination shutoff; pilot valve S8610F open until manual shutdown. S8600B, Separate Natural None Yes, ...
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Honeywell S8660 - page 2
2 CORROSIVE CHEMICALS Corrosive chemicals can also attack the module and gas control and eventually cause a failure. Where chemicals may be used routinely for cleaning, make sure the cleaning solution cannot reach the controls. Where chemicals are likely to be suspended in air, as in some industrial and agricultural applications, protect the igniti ...
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Honeywell S8660 - page 3
We recommend mounting the module with the terminals down to protect them from dripping water and dust. It can also be mounted with the terminals on either side. DO NOT MOUNT with terminals pointing up. Fasten securely with four No. 6-32 machine or No. 8 sheetmetal screws. MOUNT THE SYSTEM CONTROLS Mount any required controls, such as the gas contro ...
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Honeywell S8660 - page 4
4 Ground Control System The igniter, flame sensor and ignition module must share a common ground with the main burner. Use thermo- plastic insulated wire with a minimum rating of 105 ° 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. ...
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Honeywell S8660 - page 5
5 69-0463 Fig. 3 — S8600A,B; S8610A,B connections in a heating system with an atmospheric burner. 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. Q345, Q346, Q348, Q362, Q381 PILOT BURNER/ IGNITER-SENSOR L1 (HOT) L2 THERMO- STAT 1 LIMIT CONTROLLER 2 4 MV MV/PV PV GND ( ...
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Honeywell S8660 - page 6
Fig. 5 — S8600F,H,M; S8610F,H; S8660D; S8670D connections in a heating system with power-assisted combustion. Fig. 4 — S8600A,B; S8610A,B with vent damper pl u g in an atmospheric burner heating system with a D80D vent damper. 6 MV MV/PV PV GND (BURNER) 24V GND 24V TH-W VENT DAMPER PLUG SPARK 5 S8600A,B; S8610A,B POWER SUPPLY. PROVIDE DISCONNEC ...
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Honeywell S8660 - page 7
Fig. 6 — S8600F,H,M; S8610F,H; S8660D; S8670D connections in a heating system with a two-stage gas control and power-assisted combustion. 7 69-0463 5 MV MV/PV PV GND (BURNER) 24V GND 24V TH-W (OPT) VENT DAMPER PLUG (OPT) SPARK 5 S8600F,H,M; S8610F,H; S8660D; S8670D PILOT BURNER GROUND PILOT GAS SUPPLY Q345, Q346, Q348, Q362, Q381PILOT BURNER/ IGN ...
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Honeywell S8660 - page 8
Fig. 7 — S8600F,H,M; S8610F,H; S8660D; S8670D in a heating system with an atmospheric burner and a D80B vent damper. 8 LIMIT CONTROLLER 5 MV MV/PV PV GND (BURNER) 24V GND 24V TH-W (OPT) VENT DAMPER PLUG (OPT) SPARK 5 S8600F,H,M; S8610F,H; S8660D; S8670D 3 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ALTERNATE LIMIT ...
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Honeywell S8660 - page 9
Fig. 8 — S8600F,H,M; S8610F,H; S8660D; S8670D connections in a heating-cooling system with power-assisted combustion. 9 69-0463 MV MV/PV PV GND (BURNER) 24V GND 24V TH-W (OPT) VENT DAMPER PLUG (OPT) SPARK 5 S8600F,H,M; S8610F,H; S8660D; S8670D POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ALTERNATE LIMIT CONTROLLER L ...
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Honeywell S8660 - page 10
Fig. 9 — S8600F,H,M; S8610F, H; S8660D; S8670D connections in a hydronic heating sytem with a D80D vent damper. 10 2 MV MV/PV PV GND (BURNER) 24V GND 24V TH-W (OPT) VENT DAMPER PLUG (OPT) SPARK 4 S8600F,H,M; S8610F,H; S8660D; S8670D POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. CUT PLUG OFF MODULE END OF D80D WIRE HA ...
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Honeywell S8660 - page 11
Fig. 10 — S8600F,H,M; S8610F,H; S8660D; S8670D connections in a commercial water heater control system. 11 69-0463 CHECKOUT Check out the gas control system: • At initial installation of the appliance. • As part of regular maintenance procedures. Mainte- nance intervals are determined by the application. See PLANNING THE INSTALLATION, page 1, ...
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Honeywell S8660 - page 12
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. ❏ If gas line has been disturbed, complete gas leak test. ...
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Honeywell S8660 - page 13
13 69-0463 TRIAL FOR IGNITION Pilot Ignition Following prepurge timing (S8660, S8670), or on the call 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 ...
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Honeywell S8660 - page 14
14 WARNING When performing the following steps, do not touch stripped end of jumper or SPARK terminal. The ignition circuit generates over 10,000 volts and electrical shock can result. ❏ Energize the module and immediately touch one end of the jumper firmly to the GND terminal on the module. Move the free end of the jumper slowly toward the SPARK ...
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Honeywell S8660 - page 15
15 69-0463 • Make sure electrical connections are clean and tight. Replace damaged wire with moisture-resistant No. 18 wire rated for continuous duty up to 105 ° C [221 ° F]. • Check for cracked ceramic insulator, which can cause short to ground, and replace igniter-sensor if neces- sary. • At the gas control, disconnect main valve wire fro ...
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Honeywell S8660 - page 16
Fig. 15 — S8660, S8670 troubleshooting guide. 16 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. If checks are okay, replace module. M1173C START Check line voltage power, low voltage transformer, limit controller, the ...
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Honeywell S8660 - page 17
17 69-0463 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. L1 (HOT) L2 1 24V TRANSFORMER LIMIT CONTROLLER ON-OFF SWITCH 24V 2 THERMOSTAT OR CONTROLLER 24V (GND) SPARK DRIVE CIRCUIT 2K1 FLAME DETECTOR CIRCUIT RE ...
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Honeywell S8660 - page 18
Fig. 17 — Representative schematic for S8600A,B; S8610A,B. See Fig. 3 for hookup. 18 L1 (HOT) L2 1 24V TRANSFORMER LIMIT CONTROLLER ON-OFF SWITCH 24V 2 THERMOSTAT OR CONTROLLER 24V (GND) 1K1 1K2 3K2 2K2 3K1 GND (BUR- NER) MV/ PV MV PV IGNITER BURNER GROUND 1 2 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. ALTERNATE L ...
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Honeywell S8660 - page 19
19 69-0463 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 in determining that an appliance is properly installed and is in a safe condition for continuing use. This procedure is ...
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Honeywell S8660 - page 20
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. This procedure is intended as a guide ...
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