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ServiceTraining Course
Mobile Diesel Heaters GRY-D / GRY-I
Rev. No. 3 January 24, 2011
2
GRY-I Indirect-fired Diesel Heaters
• GRY-I 15 WE GRYP 15 AP• GRY-I 25 WE GRYP 25 AP• GRY-I 40 WE GRYP 40 AP
3
GRY-D Direct-fired Diesel Heaters
• GRY-D 15 WE GRYP 15• GRY-D 20 HE GRYP 20 M• GRY-D 20 WE GRYP 20• GRY-D 28 WE GRYP 28• GRY-D 40 WE GRYP 40• GRY-D 60 WE GRYP 60 PV
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GRY-I General Assembly
Combustion Chamber
Fuel Tank
Burner Head
Motor
CompressorExhaust Pipe
Fan
5
GRY-DGeneral Assembly
Combustion Chamber (open)
Fuel Tank
Outlet Flame Shield
Burner Head
Motor
Compressor
Fan
6
Fan Motor Assembly
Motors
70 W 2800 rpm 2 poles GRY-D 15100 W 2800 rpm 2 poles GRY-D 20150 W 2800 rpm 2 poles GRY-D 28 GRY-I 15 250 W 2800 rpm 2 poles GRY-D 40/60 GRY-I 25/40
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Fuel Circuit The fuel circuit is composed of : fuel tank fuel suction hose fuel filter (air compressor) (air valve) (air hoses) nozzle holder (combustion head) nozzle
GRY-D 15 WU GRY-I Models & GRY-D 60
GRY-D Models (except 15 and 60)
Nozzle Holder
Nozzle Holder
Nozzle
Nozzle
Nozzle
Nozzle Holder
Air Fuel
Air Fuel
BurnerHead
BurnerHead
BurnerHead
Fuel
AirAir Cutoff Valve
FuelFilter
FuelFilter
FuelFilter
VentPipe
VentPipe
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Air Compressor Assembly
Pressure Adjustment Valve
Inlet Filter
Gasket
Cover Plate
Stator
Rotor
BladeCouplingAir Line to Nozzle
PressurePort Cap
Filter Casing
Outlet Filter
Rear Guard
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Rotary Compressor
Stator RotorBlade Joint
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Air compressorInlet (Low Pressure) Filter
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Air compressorOutlet (High Pressure) Filter
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Burner Assembly(old and new design)
Old
New
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Burner AssemblyIgnition Electrode
Combustion Head
Fuel Nozzle
NozzleHolder
Safety Thermostat
SwirlBlades
14
Combustion Head (current design)
Air
Fuel
O-ring Seal
15
SpringWashers
Rubber Seal
Washer
Combustion Head (old design)
16
Nozzle & Nozzle Holder
O-ring
Fuel Inlet
Air Inlet
17
Syphon Nozzle
vs.Standard
Nozzle
STANDARD NOZZLE
Pressurized FUEL Inlets
Turbulence Chamber
SYPHON NOZZLE
Tangential Channels
Pressurized FUEL InletsNozzle Orifice
Pressurized AIR Inlets
Turbulence ChamberTangential Channels
Fuel InletPressurized AIR Inlets Nozzle Orifice
Fuel Inlet
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Burner Head on Combustion Chamber
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GRY-D 15 Combustion Head
Nozzle Holder
Nozzle AirFuel
BurnerHead
FuelFilter
VentPipe
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GRY-I Combustion chamber detail
21
GRY-I Fuel Filter and Air Valve
Fuel Filter
Air Valve
Vent Hole
Air Valve
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Safety ControlsFlame Sensor and Thermostat
• Flame Sensor (Photoresistor)– Detects false flame signals or anticipated ignition– Checks flame failure at ignition– Checks flame failure during operation
• Safety thermostat (Limit Control, OPTIONAL for USA models)
Flame Sensor
Limit Control
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Line Fuse
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Principle of OperationGRY-D
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Principle of OperationGRY-I
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Ignition SequenceGRY-D 15/20/28/40
SW
M
T
PH
F
T1 T2
PS6 sec
M
0 secXX secwork endSW
MT
SWITCHMOTORTRANSFORMER
PH PHOTOCELLF FLAMEPS AIR PRESSURE SWITCH
T1 START TIMET2 WORK TIME
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Ignition Sequence GRY-D 60 & GRY-I 15/25/40
SW
M
T
PH
SV
F
T1 T2 T3 T4
PS10 sec 16 sec 45 sec
M
0 secXXwork endSW
MT
SWITCHMOTORTRANSFORMER
SV AIR SOLENOID VALVEPH PHOTOCELLF FLAMEPS AIR PRESSURE SWITCH
T1 PREVENTILATION TIMET2 START TIMET3 WORK TIMET4 POST-VENTILATION TIME
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Wiring Diagrams
29
Wiring Diagrams
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GRY-D GRY-IService
Procedures
31
Rotor-Stator Clearances
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Correct Stator vs. Rotor Positioning
0.5 mm (0.2”) spacer plate
Stator Fixing Screws
33
Air pressure adjustment
Pressure Gauge
Pressure Adjusting Screw
34
GRY-DAppearance of front disc
BAD COMBUSTION GOOD COMBUSTION
35
Ignition Electrode Gap
36
Electronic control boards
GRY-D
GRY-I
37
Pressure Adjustment Valve
Nut
ScrewSpring
Ball
Gasket
38
Air Ducting(Indirect Heaters only)
GRY-I 25&40 WU Max Duct Lenght ~ 8 m (25 ft)GRY-I 15 WU Max Duct Lenght ~ 6 m (20 ft)
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Draining Fuel from Tank
40
Fuel Suction Hose
Bottom Spacer (important!)
Hose
Gasket
41
Tank Cap
42
Typical Air Temperatureson Direct and Indirect Heaters
43
Service & Maintenance Equipment
Measuring devicesElectric Multimeter (V, A, )
PC Flame Sensor Tester Kit
Pressure Gauge Kit (incl. hose and fitting)
Smoke Index Tester