Troubleshooting Honeywell S8600, High Voltage

ELECTRICAL (ELECTRONIC IGNITION IID)

Intermittent Pilot System

TROUBLESHOOTING HONEYWELL S8600

WARNING

HIGH VOLTAGE

For qualified Technicians ONLY

NOTE: Some heaters may be equipped with an ignition module that shuts off pilot gas if pilot fails to light. To reset, interrupt power to heater.

START

TURN GAS SUPPLY OFF.

TURN THERMOSTAT

(CONTROLLER) TO CALL

FOR HEAT

POWER TO MODULE

(24 V NOMINAL)

YES

SPARK ACROSS

IGNITER/SENSOR GAP

YES

TURN GAS SUPPLY ON

PILOT BURNER LIGHTS?

YES

SPARK STOPS WHEN

PILOT IS LIT?

YES

MAIN BURNER LIGHTS?

YES

SYSTEM RUNS UNTIL CALL FOR HEAT ENDS?

YES

NOTE: Before troubleshooting, familiarize yourself with the start-up and checkout procedure.

NO	Check line voltage power, low voltage transformer, limit controller, thermostat
	(controller) and wiring.

Pull ignition lead and check spark at module.

Spark Okay?

YES

•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.

		• Check that all manual gas valves are open, supply tubing and pressures are good,
NO
NO
		and pilot burner orifice is not blocked.
		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: If S8600H goes into lockout, reset system. Lockout is used on L.P.G. models.


NO	•	Check continuity of ignition cable and ground wire.
NO	•	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.


	•	Check for 24 Vac across MV-MV/PV terminals. If no voltage, replace module.
NO	•
	•	Check electrical connections between module and gas control. If okay, replace
	•
		gas valve or gas control operator, i.e. pilot gas valve, flow switch etc.

	NOTE: IF S8600H goes into lockout, reset system.
	NOTE: IF S8600H goes into lockout, reset system.

NO
	•	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.

CALL FOR HEAT ENDS

SYSTEM SHUTS OFF?

YES

TROUBLESHOOTING

ENDS

NO	•	Check for proper thermostat (controller) operation.
NO	•	Check for proper thermostat (controller) operation.
	•	Remove MV lead at module; if valve closes, recheck temperature controller and
		wiring; if not, replace gas valve.

Repeat procedure until trouble free operation is obtained.

105B specifications

Raypak 105B is a well-engineered boiler designed for various heating applications. Known for its efficiency and reliability, the Raypak 105B is a preferred choice among professionals in both residential and commercial settings.

One of the main features of the Raypak 105B is its compact design. Measuring in at a size that allows for easy installation, it is ideal for locations where space is at a premium. The unit's lightweight materials contribute to a reduced load on structural components of buildings, making it an efficient option for retrofits and new installations alike.

The Raypak 105B operates on advanced technology that ensures optimal performance and energy efficiency. The unit boasts a high thermal efficiency rating, which translates to lower operational costs for users. Its innovative control system monitors and adjusts the heating output, ensuring that the boiler operates at peak efficiency while maintaining comfort.

Another significant characteristic of the Raypak 105B is its built-in hydrostat. This feature automatically controls water temperature, providing a safeguard against overheating and improving overall safety. The unit's durable stainless steel heat exchanger enhances the longevity of the product while also resisting corrosion, a common issue in boiler systems.

In terms of environmental considerations, the Raypak 105B is designed to meet or exceed industry standards for emissions. This not only helps users comply with regulations but also contributes to a reduced carbon footprint. Additionally, the natural gas or propane options add versatility in terms of fuel choice, catering to a wide range of applications.

Ease of maintenance is another advantage offered by the Raypak 105B. The unit is designed to provide straightforward access to key components, minimizing operational downtime when servicing is needed. This thoughtful design element supports both residential and commercial needs, ensuring reliability in various settings.

In summary, the Raypak 105B stands out due to its compact design, high thermal efficiency, advanced control systems, and robust safety features. With its focus on longevity, ease of maintenance, and environmental compliance, the Raypak 105B continues to be a leading choice for efficient heating solutions in diverse applications. Its reputation for reliability makes it a trusted option for those in need of dependable heating solutions.