(2) 16847 EA57 Medium Torque Drive Motor 

(1) HK20627 EA71 High Torque Drive Motor (on some models)

(1) 16281 (C7027A) Scanner, UV, Honeywell

(2) HK 33251 – KS84447812 Combustion air, Air Purge Pressure Switches

(1) HK70344 – KS84447832 Primary Air Pressure Switch

(1) KS84447802 Exhaust Fan Interlock Pressure Switch 

(1) KS84447822 – Secondary Air Pressure Switch (Non-VFD)

(1) HK47783x_ _ _ Spark Assembly – **NOTE** Consult APS for last three digits depending on burner model number

Other Suggested Critical Parts – Many depend on Fuel used

(1) HK39466 Impeller, TBA36/15 (Oil/RFO/LP) – Need to know Rotation and Motor Type (TEFC or ODP)

(1) 1668_ Oil Micro Valve **NOTE* Consult APS for last digit depending on burner model number

(1) 1693_ LP Micro Valve **NOTE* Consult APS for last digit depending on burner model number

(1) Maxon Oil Valve – 8730 Series Oil Proof of Closure Safety Shut off valve – 3/4″ or 1″ threaded

(1) Maxon LP Valve – 8100 series Pneumatic Proof of Closure Safety Shut off Valve – 3/4″ threaded

(1) Maxon Gas Valve – 5000 Series Proof of Closure Safety Shut off Valve – 3″ threaded or 4″ flanged

(1) Barksdale Gas Hi/Low Pressure Switch (0-10 psi)

(1) 303133 – Ashcroft Pressure Hi/Low Pressure Switch – 0-200 psi (Oil) and 0-300 psi (LP)

(1) Primary Air/Fuel Nozzle, Oil/RFO

(1) Deflector for above Oil Nozzle

(1) Screw for above deflector plate