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PORTABLE FORCED AIR HEATERS
OWNER’S MANUAL
RISCALDATORI MOBILI AD ARIA
FORZATA
MANUALE OPERATIVO
APPAREILS DE CHAUFFAGE
INDIVIDUELS À AIR FORCÉ
MANUEL D’UTILISATION
TRAGBARE HOCHDRUCK-
HEISSLUFTTURBINEN
BEDIENUNGSANLEITUNG
Heater Sizes: 20 and 30 KW
Portata dei riscaldatori: 20 e 30 KW
Production de la chaleur: 20 et 30 KW
Heizgerät-Größen: 20, 30 KW
Models - Modelli - Modèles - Modelle:
GK20, GK30
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108954
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PORTABLE FORCED AIR HEATERS OWNER’S MANUAL Heater Sizes: 20 and 30 KW Models: GK20 and GK30 IMPORTANT: Read and understand this manual before assembling, starting or servicing heater. Improper use of heater can cause serious injury. Keep this manual for future reference. TABLE OF CONTENTS SAFETY INFORMATION ............................................................ 2 PREVENTATIVE MAINTENANCE SCHEDULE ......................... 6 PRODUCT IDENTIFICATION ...........................................
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SAFETY INFORMATION 2 SAFETY INFORMATION WARNINGS • Never use heater where gasoline, paint thinner, or other highly IMPORTANT: Read this owner’s manual carefully and flammable vapors are present. completely before trying to assemble, operate, or ser- • Follow all local ordinances and codes when using heater. vice this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion, • Heaters used in the vicinity of tarpaulins, canvas, or similar electrical shock,
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PRODUCT IDENTIFICATION 3 3 UNPACKING ASSEMBLY PRODUCT IDENTIFICATION ASSEMBLY (FOR MODEL GK30 ONLY) Hot Air Handle Outlet These models are furnished with wheels and handles. Wheels, handles, Upper and the mounting hardware are found in the shipping carton. Shell Fan Guard Tools Needed • Medium Phillips Screwdriver Air Filter Lower End • 3/8" Open or Adjustable Wrench Shell Cover • Hammer 1. Slide axle through wheel support frame. Install wheels on axle. Fuel IMPORTANT: When installing wheels, po
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FUELS 4 VENTILATION THEORY OF OPERATION FUELS THEORY OF OPERATION The Fuel System: The air pump forces air through the air line. The WARNING: Use only kerosene or No. 1 fuel oil to air is then pushed through the burner head nozzle. This air causes avoid risk of fire or explosion. Never use gasoline, fuel to lift from the tank. A fine mist of fuel is sprayed into the naphtha, paint thinners, alcohol or other highly combustion chamber. flammable fuels. The Air System: The motor turns the fan. The
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OPERATION 5 5 STORING, TRANSPORTING, OR SHIPPING OPERATION STORING, TRANSPORTING, OR SHIPPING WARNING: Review and understand the warnings Note: If shipping, transport companies require fuel tanks to be in the Safety Information section, page 2. They are empty. needed to safely operate this heater. Follow all local codes when using this heater. 1. Drain fuel tank. Note: Some models have drain plug on underside of fuel tank. If so, remove drain plug to drain all fuel. If heater does not TO START
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PREVENTATIVE MAINTENANCE SCHEDULE 6 TROUBLESHOOTING PREVENTATIVE WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical MAINTENANCE SCHEDULE shock can occur. Item How Often How To Fuel tank Flush every 150-200 hours of operation or See Storing, Transporting, or Shipping, page 5 as needed Air output and lint filters Replace every 500 hours of operation or See Air Output, Air Intake, and Lint Filters, page 10 once a year Air intake filter Wash and dry w
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TROUBLESHOOTING 7 7 TROUBLESHOOTING Continued FAULT CONDITION POSSIBLE CAUSE REMEDY Motor starts and runs but heater does not 1. No fuel in tank 1. Fill tank with kerosene ignite (ON/OFF switch light remains on) 2. Pump pressure incorrect 2. See Pump Pressure Adjustment, page 10 3. Dirty fuel filter 3. See Fuel Filter, page 8 4. Obstruction in nozzle assembly 4. See Nozzle Assembly, page 11 5. Water in fuel tank 5. Drain and flush fuel tank with clean kerosene. See Storing, Transporting, or Shippi
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SERVICE PROCEDURES 8 SERVICE PROCEDURES Fuel Filter WARNING: Never service heater while it is plugged in, operating, or hot. Severe burns and electrical Fuel Line shock can occur. UPPER SHELL REMOVAL 1. Remove screws and lock washers along each side of heater using 5/16" nut-driver. These screws attach upper and lower shells together. 2. Lift upper shell off. 3. Remove fan guard. Upper Shell Upper Shell Side Cover Fan Guard Figure 9 - Fuel Filter Removal, Model GK20 Fuel Filter, Bushing, and Lo
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SERVICE PROCEDURES 9 9 SERVICE PROCEDURES Continued IGNITOR 1. Remove upper shell and fan guard (see page 8). 8. Carefully remove replacement ignitor from styrofoam packing. 2. Remove fan (see page 13). 9. Carefully guide ignitor into opening in nozzle adapter bracket. Do not strike ignitor element. Attach ignitor to nozzle adapter 3. Remove 4 side cover screws with a 5/16" nut driver. Remove bracket with screw using a 1/4" nut driver (see Figure 12). side cover (see Figure 9 or 10, page 8). Tor
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SERVICE PROCEDURES 10 SERVICE PROCEDURES Continued AIR OUTPUT, AIR INTAKE, AND LINT FILTERS Air Intake Filter 1. Remove upper shell (see page 8). Filter End Fan 2. Remove filter end cover screws using 5/16" nut-driver. Cover Guard 3. Remove filter end cover. 4. Replace air output and lint filters. 5. Wash or replace air intake filter (see Preventative Maintenance Schedule, page 6). 6. Replace filter end cover. 7. Replace fan guard and upper shell. Lint Filter IMPORTANT: Do not oil filters Air Output
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SERVICE PROCEDURES 11 11 SERVICE PROCEDURES Continued Combustion NOZZLE ASSEMBLY Chamber 1. Remove upper shell (see page 8). 2. Remove fan (see page 13). Nozzle Adapter 3. Remove fuel and air line hoses from nozzle assembly (see Fig- Bracket Nozzle/ ure 17 or 18). Adapter 4. Turn nozzle assembly 1/4 turn to left and pull toward motor to Air Line Hose Assembly remove (see Figure 19). Photocell Bracket 5. Place plastic hex-body into vise and lightly tighten. Fuel Line Hose 6. Carefully remove nozz
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SERVICE PROCEDURES 12 SERVICE PROCEDURES Continued 7. Check for debris in pump. If debris is found, blow out with FUEL AND AIR LINE REPLACEMENT AND compressed air. PROPER ROUTING 8. Install insert and rotor. 1. Remove upper shell (see page 8). 9. Check gap on rotor. Adjust to .076/.101 mm (.003"/.004") if 2. Remove side cover screws using 5/16" nut driver. needed (see Figure 24, page 13). 3. Remove side cover. Note: Rotate rotor one full turn to ensure the gap is .076/.101 mm 4. Inspect fuel an
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SERVICE PROCEDURES 13 13 SERVICE PROCEDURES Continued 13. Perform steps 1 through 6, page 12. Fan 14. Place fine grade sandpaper (600 grit) on flat surface. Sand ro- tor lightly in “figure 8” motion four times (see Figure 25). Setscrew 15. Reinstall insert and rotor. Fan 16. Perform steps 10 through 12, page 12. Gap Adjusting Flush Screw Motor .076/.101 mm Setscrew Shaft Motor Blade (.003"/.004") Gap Shaft Measured With Feeler Gauge Figure 26 - Fan, Motor Shaft, and Setscrew Location Figure 27 - Fa
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SERVICE PROCEDURES 14 WIRING DIAGRAM SERVICE PROCEDURES WIRING DIAGRAM Continued Installing the New Assembly Brown 1b CAUTION: Ignition control assembly contains Blue ON/Off Switch electrostatic components. Handle the assembly by Green-Yellow 1 the edges of the printed circuit board. Do not touch 1a any of the quick connect terminals or electronic Ignitor components. Photocell Green-Yellow 1. Align the five holes in the assembly with the five printed cir- cuit board supports in the side cover.
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SPECIFICATIONS 15 15 ACCESSORIES SPECIFICATIONS GK20 GK30 Output Rating (KW) 20 30 Fuel Use Only Kerosene or No. 1 Fuel Oil Fuel Tank Capacity (U.S. Gal./Liters) 5.0/18.9 9.0/34 Fuel Consumption (Gal. Per Hr./Liters Per Hr.) .52/1.97 .79/3.0 Electric Requirements 240 V/50 Hz (Same All Models) Amperage (Normal Run) 1.0 1.2 Hot Air Output (CFM/CMM) 225/6.4 425/12 Motor Speed (RPM) 2850 2850 ACCESSORIES Purchase accessories from your local dealer. AIR GAUGE KIT - HA1180 For all models. Special tool
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ILLUSTRATED PARTS BREAKDOWN 16 4 1 ILLUSTRATED PARTS BREAKDOWN 2 MODEL GK20 5 9-1 36 9-2 9-6 9-5 3 9 7 6 11 9-4 9-3 8 21 10 12 18 26 13 20 22 16 23 24 37 28 39 30 27 25 29 38 35 34 31 12-1 19 12-2 17 15 14 12-3 12-4 33 32 43 12-5 41 42 40 12-6 12-18 12-7 12-17 12-16 12-8 12-9 12-15 12-13 12-14 12-10 Motor and Pump Assembly 12-19 12-12 12-11 108954
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PARTS LIST 17 17 This list contains replaceable parts used in your heater. When ordering parts, be sure to PARTS LIST provide the correct model and serial numbers (from the model plate), then the part number and description of the desired part. MODEL GK20 KEY PART KEY PART NO. NUMBER DESCRIPTION QTY. NO. NUMBER DESCRIPTION QTY. 1 M51104-01 Handle 1 14 079673-07 Power Cord 1 2 098511-256 Upper Shell 1 15 M50400 Strain Relief Bushing 1 3 M11084-29 Screw, #10-16 x 3/4" 2 16 NTC-4C Hex Lock Nut, 1/4
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ILLUSTRATED PARTS BREAKDOWN 18 2 ILLUSTRATED PARTS BREAKDOWN 1 7-1 MODEL GK30 7-2 7-6 7-3 3 7-4 7-5 9 7 10 5 4 16 6 8 11 19 23 24 12 28 15 25 18 26 20 27 29 22 21 41 30 42 31 10-1 37 43 13 10-2 35 33 10-3 34 14 10-5 10-4 17 36 44 32 39 10-6 40 38 10-17 10-7 14 10-8 10-16 10-15 10-9 10-13 10-14 10-10 10-13 10-11 Motor and Pump Assembly 10-12 108954
