Page 1
ANSI A10.10-1998 CAN/CSA/ B140.0-03 AND CSA B140.8-1967 MODEL: KFA50H, KFA80H, KFA135H, KFA220H Before the first use of this heater, please read this USER’S MANUAL very carefully. This USER’S MANUAL has been designed to instruct you as to the proper manner in which to assemble, maintain, store, and most importantly, how to operate the heater in a safe and efficient manner.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! DANGER: IMPROPER USE OF THIS HEATER CAN RESULT IN SERIOUS INJURY OR DEATH FROM BURNS, FIRE, EXPLOSION, ELECTRICAL SHOCK AND/OR CARBON MONOXIDE POISONING. WARNINGS: 1. RISK OF INDOOR AIR POLLUTION! • Use this heater only in well ventilated areas. Provide at least a three-square foot (2,800 sq. cm.) opening of fresh outside air for each 100,000 BTU/hr.
Lower Shell Fuel Tank Fan Guard Cord Wrap Side Cover (80H Model Only) Lamp Pressure Gauge Thermostot Knob (80H Model Only) (80H Model Only) Fuel Gauge Fuel Cap Power/Reset Switch Power Cord (Piggy Back, 80H Model Only) Figure 1. KFA50H/KFA80H MODELS...
Page 4
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! Front Handle Upper Shell Hot Air Outlet Rear Handle Shell Lower Cord Wrap Fuel Gauge Fuel Cap Side Cover Pressure Gauge Lamp Fan Guard Thermostat Knob Room Temp. Display Power Cord (Piggy Back) Power/Reset Switch 10”...
Front Handle Rear Handle Handle Cord Wrap 50H No/80H Yes Hardware kit : HW-KFA1016 Figure 4. KFA50H/80H MODELS Cord Wraps Handle (KFA80H Model Only) Figure 5. KFA135H/220H MODELS Screws Flange Screws Nuts Cap Nuts S Bushings Cap Nuts L Wheels Cord Wraps (10”...
Page 6
Figure 6. (KFA80H Model only) 6) Secure cord wrap with the screws removed. For KFA135H/220H Models only (Assembly time for this product is 10 minutes) Tools Required •...
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! Screw Cap Nut S Front Handle Rear Handle Hot Air Outlet Cord Wrap Flange Screw Fuel Tank Flange Air Inlet Wheel Support Frame Threaded Axle Wheel Wheel Bushing Cap Nut L Figure 7. Assembling Handle, Wheel and Cord Wrap CAUTION: DO NOT OPERATE heater without support frame assembled to tank.
Internal Shut-Off Temp. Reset Temperature MODELS Plus/Minus 10 Degrees Plus/Minus 10 Degrees KFA50H 176˚F/80˚C 122˚F/50˚C KFA80H 158˚F/70˚C 104˚F/40˚C KFA135H 158˚F/70˚C 104˚F/40˚C KFA220H 194˚F/90˚C 140˚F/60˚C B. Electrical System Protection : This heater’s electrical system is protected by a fuse mounted to the PCB assembly that protects it and other electrical components from damage.
• 101 to 200 feet (30.8 to 61 meters) long, use 14 AWG conductor. 4. Turn “THERMOSTAT CONTROL knob” to desired setting (setting range : 40˚F ~ 110˚F) (KFA80H/135H/220H Models Only) 5. Push “BTU control Switch” to “High” level. (See Figure 8.) (KFA220H Model Only) 6.
Outlet PIGGYBACK POWER CORD WARNING : SHOCK HAZARD! • Always cover electric outlet when not in use. KFA80H/135H/220H Models only Figure 9. Piggyback Power Cord • Don’t plug and use a appliance more than 120V/60Hz 5A current in this outlet.
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 9. MAINTENANCE WARNING!! : NEVER SERVICE HEATER WHILE IT IS PLUGGED IN OR WHILE HOT! USE ORIGINAL EQUIPMENT REPLACEMENT PARTS. Use of third party or other alternate components will void warranty and may cause unsafe operating conditions.
Page 12
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! E.) NOZZLE Combustion Chamber REMOVE DIRT IN NOZZLE AS NEEDED (SEE PAGE 16). (For KFA50H /80H/135H Models Only) Screw Ignitor Wire - Remove upper shell (See page 10). - Remove fan blade (See page 10). - Remove fuel and air line hoses from nozzle adaptor.
Page 13
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! F.) SPARK PLUG CLEAN AND REGAP EVERY 600 HOURS OPERATION OR REPLACE AS NEEDED. (For KFA50H/80H/135H Models Only) - Remove upper shell (See page 10). Nozzle Adaptor - Remove fan (See page 10). Spark Plug - Remove ignitor wire from spark plug.
Page 14
- Stop heater (See Operation, page 8) KFA50H Model Only Pressure Gauge Pump Pressure MODEL High BTU level Low BTU level KFA50H 3.8 psi KFA80H 3.8 psi Relief Valve KFA135H 5.5 psi KFA80H/135H Models Only Pressure Gauge KFA220H 8.5 psi 6.5 psi...
5. Replace fuse with enclosed fuse. WARNING : FIRE HAZARD To avoid fire, Do not substitute with a higher or lower current rating. 6. Replace switch wires to power switch. 7. Replace side cover. NOTE : Specified fuse rating : AC 125/8A Fuse Holder Fuse KFA80H/135H/220H Models Screw Side Cover Power Switch Switch Wire Fuse Fuse Holder Figure 21. Replacing Fuse...
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 11. TROUBLESHOOTING GUIDE TROUBLE POSSIBLE CAUSE CORRECTIVE ACTION Heater ignites but MAIN PCB 1. Wrong pump pressure. 1. See Pump Pressure Adjustment, assembly shuts heater off after a 2. Dirty Air Output,Air Intake Page 13.
BLACK POWER LIMIT POWER FUSE SWITCH CONTROL PLUG 8A/125VAC BLACK BLACK AC120V GREEN 60Hz WHITE EARTH B) WIRING DIAGRAM (KFA80H/135H/220H Models) CONTROL PCB SPARK PLUG BLACK IGNITOR POWER LAMP BLACK (LED) ORANGE BLACK PUMP ROOM MOTOR WHITE SENSOR CAPACITOR GREEN...
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 14. EXPLODED PARTS DRAWING (KFA50H//80H/135H Models Only) NOTE : SPECIFY MODEL NUMBER AND PART NUMBER WHEN ORDERING PARTS. BURNER HEAD ASSEMBLY 22-7 22-8 22-3 22-5 22-1 22-2 22-4 22-6 20 21 MOTOR AND PUMP ASSEMBLY 25-2 25-5 25-6...
Page 20
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 15. PARTS LIST (KFA50H/80H/135H Models Only) PART NO. Quantity KEY NO. DESCRIPTION KFA50H KFA80H KFA135H Fuel Tank Assmebly 2151-0046-01 2151-0047-01 2151-0048-01 Fuel Drain-Bolt 4329-0072-00 Fuel Gauge 2156-0047-00 2156-0049-00 2156-0051-00 Fuel Filter Assmbly 2155-0005-00...
Page 21
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 15. PARTS LIST (KFA50H/80H/135H Models Only) PART NO. Quantity KEY NO. DESCRIPTION KFA50H KFA80H KFA135H 25-8 Rotor See SP-KFA1000 See SP-KFA1000 See SP-KFA1000 25-9 Blade See SP-KFA1000 See SP-KFA1000 See SP-KFA1000 25-10 Insert...
Page 22
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 14. EXPLODED PARTS DRAWING (KFA220H Model Only) NOTE : SPECIFY MODEL NUMBER AND PART NUMBER WHEN ORDERING PARTS. BURNER HEAD ASSEMBLY 18-8 18-3 18-7 18-1 18-5 18-2 18-4 18-6 22 10 MOTOR AND PUMP ASSEMBLY 21-2 21-5 21-6...
Page 23
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 15. PARTS LIST (KFA220H Model Only) PART NO. Quantity KEY NO. DESCRIPTION KFA220H Fuel Tank Assmebly 2151-0049-01 Fuel Drain-Bolt 4329-0072-00 Fuel Gauge 2156-0052-00 Fuel Filter Assmbly 2155-0001-00 Fuel Cap 2151-0041-00 Power Cord 3980-0275-00 Shell Lower 3111-0504-01 Flange Screw...
Page 24
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 15. PARTS LIST (KFA220H Model Only) PART NO. Quantity KEY NO. DESCRIPTION KFA220H 21-15 Output Filter See SP-KFA1005 21-16 End Filter Cover 3221-0076-00 21-17 Ball See SP-KFA1010 21-18 Spring See SP-KFA1010 21-19 Adjusting Screw See SP-KFA1010 21-20 Bolt Flange...
NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING! 15. PARTS LIST (WHEELS AND HANDLE) 1) KFA50H / KFA80H MODELS PART NO. KEY NO. DESCRIPTION QUANTITY KFA50H KFA80H Handle 3231-0073-00 3231-0073-00 Cord Wrap 3221-0041-00 2) KFA135H / KFA220H MODELS PART NO. KEY NO.
Page 26
Warranty LIMITED WARRANTY: This limited warranty is extended to the original retail purchaser of this Forced Air/Convection/Radiant Heater and warrants against any defect in materials and workmanship for a period of one (1) year from the date of retail sale.GHP Group, Inc., at it’s option, will either provide replacement parts or replace or repair the unit, when properly returned to the retailer where purchased or one of our service centers as directed by GHP Group,Inc., within one (1) year of retail purchase.
Page 27
WARRANTY REGISTRATION IMPORTANT: We urge you to fill out your warranty registration card within fourteen (14) days of date of purchase. You can also register your warranty on the internet at www.ghpgroupinc.com. Complete the entire serial number. Retain this portion of the card for your records.