1 Service Training Course Mobile Diesel Heaters GRY-D / GRY-I Rev. No. 3 January 24, 2011
1
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 WU GRYP 50 AP• GRY-I 25 WU GRYP 90 AP• GRY-I 40 WU GRYP 135 AP
3
GRY-D Direct-fired Diesel Heaters
• GRY-D 15 WU GRYP 50• GRY-D 20 HU GRYP 80 M• GRY-D 20 WU GRYP 80• GRY-D 28 WU GRYP 100• GRY-D 40 WU GRYP 150• GRY-D 60 WU GRYP 210 PV
4
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
US Motors
70 W 3300 rpm 2 poles 10 µF GRY-D 15100 W 3300 rpm 2 poles 10 µF GRY-D 20150 W 3300 rpm 2 poles 20 µF GRY-D 28 GRY-I 15 250 W 3300 rpm 2 poles 30 µF GRY-D 40/60 GRY-I 25/40
7
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
8
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
9
Rotary Compressor
Stator RotorBlade Joint
10
Air compressorInlet (Low Pressure) Filter
11
Air compressorOutlet (High Pressure) Filter
12
Burner Assembly(old and new design)
Old
New
13
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
18
Burner Head on Combustion Chamber
19
GRY-D 15 Combustion Head
Nozzle Holder
Nozzle AirFuel
BurnerHead
FuelFilter
VentPipe
20
GRY-I Combustion chamber detail
21
GRY-I Fuel Filter and Air Valve
Fuel Filter
Air Valve
Vent Hole
Air Valve
22
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
23
Line Fuse
24
Safety ControlsAir Pressure Switch
25
Principle of OperationGRY-D
26
Principle of OperationGRY-I
27
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
28
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
29
Wiring Diagrams
30
Wiring Diagrams
31
GRY-D GRY-IService
Procedures
32
Rotor-Stator Clearances
33
Correct Stator vs. Rotor Positioning
0.5 mm (0.2”) spacer plate
Stator Fixing Screws
34
Air pressure adjustment
Pressure Gauge )
Pressure Adjusting Screw
35
GRY-DAppearance of front disc
BAD COMBUSTION GOOD COMBUSTION
36
Ignition Electrode Gap
37
Electronic control boards
GRY-D
GRY-I
38
Pressure Adjustment Valve
Nut
ScrewSpring
Ball
Gasket
39
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)
40
Draining Fuel from Tank
41
Fuel Suction Hose
Bottom Spacer (important!)
Hose
Gasket
42
Tank Cap
43
Typical Air Temperatureson Direct and Indirect Heaters
1200°F 300°F 190°F
3ft
5ft
250°F 140°F 100°F
3ft
5ft
600°F
44
Service & Maintenance Equipment
Measuring devicesElectric Multimeter (V, A, )
PC Flame Sensor Tester Kit
Pressure Gauge Kit (incl. hose and fitting)
Smoke Index Tester