GSI Outdoors PNEG-630 - Manual (Page 2)

Portable Dryer Troubleshooting
1
Table Of Contents
Safety ..................................................................................................................................................................... 3
Safety Sign Off Sheet ............................................................................................................................................ 8
EMCS Portable Dryer (1993-1998)
Safety Voltage Check Points ................................................................................................................................. 9
Programming Instructions for EMCS Grain Dryers .............................................................................................. 10
EMCS Display Board ............................................................................................................................................ 11
Input/Output Board Identification .......................................................................................................................... 12
EMCS Switch Replacement.........................................................................................................................13
1100 Series Control Box Wiring ............................................................................................................................. 14
1100 Series Control Box Wiring (New) ................................................................................................................. 15
1200 Series Control Box Wiring ............................................................................................................................. 16
1200 Series Control Box Wiring (New) ................................................................................................................. 17
1100 Fan Lower Control Box Interconnect Strip ................................................................................................... 18
1200 Fan Lower Control Box Interconnect Strip .................................................................................................. 19
Upper Control Box External Wiring ....................................................................................................................... 20
Fan Housing and Vapor Hi-Limit Circuit ............................................................................................................... 21
Plenum Hi-Temperature Switch ............................................................................................................................ 22
Fixed Grain Hi-Limit .............................................................................................................................................. 23
Grain & Plenum Hi-Limit Circuit ........................................................................................................................... 24
Two Fan Plenum and Grain Limit Switch Wiring .................................................................................................. 25
Rear Discharge & Emergency Cooling Circuit ..................................................................................................... 26
Rear Discharge Mercury Switch ........................................................................................................................... 27
Adjustable Hi-Limit & Emergency Cooling Circuit ............................................................................................... 28
Motor Overloads .................................................................................................................................................... 29
Air Pressure Switch ............................................................................................................................................... 30
Air Pressure Switch Drawing ................................................................................................................................ 31
Out of Grain Safety Circuit .................................................................................................................................... 32
Out of Grain Safety Circuit Drawing ..................................................................................................................... 33
Upper Junction Box Wiring .................................................................................................................................... 34
Meter Roll Sensor .................................................................................................................................................. 35
Meter Roll Sensor Wiring ...................................................................................................................................... 36
Meter Roll Reversing ............................................................................................................................................. 37
Lower Junction Box Wiring ................................................................................................................................... 38
New Fenwal Board Wiring.......................................................................................................................... 39
New Fenwal Board Troubleshooting.............................................................................................................40
Flame Control Circuit ............................................................................................................................................. 41
Fan Burner Circuit for Canadian Models .............................................................................................................. 42
Conversion Diagram for C Series Dryers to a Switchable Hi/Low or On/Off Burner ......................................... 43
Fan 28 LP Hi/Low-On/Off .................................................................................................................................... 44
Fan 28 LP On/Off Burner with Mercoid ............................................................................................................... 45
Fan 28 NG Hi/Low-On/Off ................................................................................................................................... 46
Fan 28 NG On/Off Burner with Mercoid .............................................................................................................. 47
Fan 42 LP Hi/Low-On/Off .................................................................................................................................... 48
Fan 42 LP On/Off Burner with Mercoid ............................................................................................................... 49
Fan 42 NG Hi/Low-On/Off ................................................................................................................................... 50
Fan 42 NG On/Off Burner with Mercoid .............................................................................................................. 51
SCR Drive Circuit .................................................................................................................................................. 52
RTD Temperature Sensor ...................................................................................................................................... 53
Test Procedure for EMCS Dryers ......................................................................................................................... 54
Temperature Charts ............................................................................................................................................... 55
EMCS Troubleshooting Tips........................................................................................................................ 56