Fri-Jado STG7 P User manual

USA
WWW.FRIJADO.COM Service Manual STG7 P Gas form 9123692 rev. 05/2013
MODELS
Programmable controls STG7 P
Gas types G20/25
SERVICE MANUAL
STG7 P GAS FIRED
ROTISSERIE OVEN
- NOTICE -
This manual is prepared for the use of trained Service Technicians and
should not be used by those not properly qualified. If you have atten-
ded training for this product, you may be qualified to perform all the
procedures in this manual.
This manual is not intended to be all encompassing. If you have not
attended training for this product, you should read, in its entirety,
the repair procedure you wish to perform to determine if you have
the necessary tools, instruments and skills required to perform the
procedure. Procedures for which you do not have the necessary tools,
instruments and skills should be performed by a trained technician.
Reproduction or other use of this Manual, without the express written
consent of Fri-Jado, is prohibited.
Model STG7 P Gas

Service Manual STG7 P Gas form 9123692 rev. 05/2013
Page 2

TABLE OF CONTENTS
Service Manual STG7 P Gas form 9123692 rev. 05/2013 Page 3
Versions
Version Issue date
dd/mm/yy
Remarks
02/2009 01/03/2012 First release.
07/2012 01/07/2012 Various adjustments.
02/2013 01/02/2013 Adjusting of power changed. Blower added in electric compart-
ment.
04/2013 01/04/2013 Adjusting power changed on pages 23 to 29. Trouble shooting ad-
justed.
05/2013 01/05/2013 Adjusting power changed on pages 23 to 29.

TABLE OF CONTENTS
Service Manual STG7 P Gas form 9123692 rev. 05/2013
Page 4
Index .......................................................................................................................................................... 4
General technical data.............................................................................................................................. 6
Programming instructions........................................................................................................................ 7
Removal and replacement of parts for the STG7 P Gas ....................................................................... 11
Right or left side panel........................................................................................................................ 11
Top cover .............................................................................................................................................. 11
Knob ..................................................................................................................................................... 11
Instrument panel ................................................................................................................................. 12
Tumble switch reset ............................................................................................................................. 12
Electric panel........................................................................................................................................ 12
Display .................................................................................................................................................. 13
Panel and keypad assembly ................................................................................................................ 13
Namepanel........................................................................................................................................... 13
Halogen lamp holder (customer side) ................................................................................................ 14
Halogen lamp holder (service side) .................................................................................................... 14
Power section....................................................................................................................................... 15
Safety thermostat ............................................................................................................................... 15
Main switch.......................................................................................................................................... 16
Blower motor....................................................................................................................................... 16
PT500 sensor......................................................................................................................................... 17
Drive motor.......................................................................................................................................... 17
Gas mixture blower ............................................................................................................................. 18
Gas burner safety control.................................................................................................................... 18
Gas control block ................................................................................................................................. 19
Ignition/Ionization set ......................................................................................................................... 19
Board speed control blower................................................................................................................ 19
Relay and base relay............................................................................................................................ 20
Rectifier ................................................................................................................................................ 20
Ring core transformers ........................................................................................................................ 20
Door adjustment (left side) ................................................................................................................. 21
Door glass inside.................................................................................................................................. 21
Door glass outside ............................................................................................................................... 21
Changing an orifice and air inlet........................................................................................................ 22
INDEX

TABLE OF CONTENTS
Service Manual STG7 P Gas form 9123692 rev. 05/2013 Page 5
Working of gas fired rotisserie .............................................................................................................. 23
Gas technical data................................................................................................................................ 24
Electrical tests and service procedures.................................................................................................. 25
PT500 sensor test ................................................................................................................................. 25
Keypad test .......................................................................................................................................... 25
Adjustment of board for speed/power regulation............................................................................ 26
Temporary bridging of reset switch ................................................................................................... 27
Gas block Honeywell type VK4115V................................................................................................... 28
Adjusting of the power for Natural gas and Propane ...................................................................... 29
Ignition/Ionization set ......................................................................................................................... 30
Control location................................................................................................................................... 31
Troubleshooting for the STG7 P Gas Rotisseries................................................................................... 32
Exploded views & partlists..................................................................................................................... 34
STG7 P Gas - sheet iron work .............................................................................................................. 34
STG7 P Gas - components .................................................................................................................... 36
Electrical diagrams.................................................................................................................................. 39
STG7 P Gas - circuit diagram ............................................................................................................... 39
STG7 P Gas - wiring diagram............................................................................................................... 40
STG7 P Gas - wiring diagram (till serial number 100054530) ............................................................ 41

GENERAL TECHNICAL DATA
Service Manual STG7 P Gas form 9123692 rev. 05/2013
Page 6
GENERAL TECHNICAL DATA
This manual covers the STG 7 P gas fired rotisserie ovens suitable for G 20/25 (natural gas).
• STG7–Ovenwithsevenspits(28to35chickens).
Alloftheinformation,illustrationsandspecicationscontainedinthismanualarebasedon
thelatestproductinformationavailableatthetimeofprinting.
Note: From Dec. 2008 on the gas pipe ends under the STG 7 instead of at the rear end.
A knee piece and an 8 inch nipple (NPT to BSP thread) are delivered with the unit.
Type STG 7
Power(W) 345
Gaspower(BTU-KW) 49.500-14.5
Fusesneededwithpowerconnection115V,1N~50…60Hz
(1phasewithzero) 1x15A
Standardplugfromfactory NEMA5-15
Netweight 204kg 450lbs
Grossweight 230kg 507 lbs
Height 1025mm 401/4inch
Width 985mm 383/4inch
Depth 850mm 331/2inch
Tools
• Standardsetoftools.
• Metricwrenches,socketsandhexsocketkeywrenches.
• Multi-meterandACcurrentclamptester.
• Temperaturetester.
• Insulationvaluetester(Megger).
• Toxicitymeter.
• Gaspressuremeter.
• FieldServiceGroundingKit.
TECHNICAL DATA

Temperature Display
Program indicators
Program keys
Buzzer key
Probe key
Temperature key
Up-Down key
Time key
Time display
Temperature hold indicator
Second step indicator
First step indicator
Start/Stop
Rotor key
Time of day
Program end
Second cooking step
First cooking step
Temperature hold process
8888888410 0030
Service Manual STG7 P Gas form 9123692 rev. 05/2013 Page 7
PROGRAMMING INSTRUCTIONS
When the main switch is tuned to “1” the
display lights up and the rotisserie is ON.
PROGRAMMING INSTRUCTIONS
DISPLAY AND KEYS
SETTING THE STG

888410 88881040 888p16 888815pr
888p01 8888prog 888000 88880040
888410 88880040 888000 88880030
Service Manual STG7 P Gas form 9123692 rev. 05/2013
PROGRAMMING INSTRUCTIONS
Page 8
Press and hold Time of
day key
Press Up or Down key
Release Time of day key
After the unit is
switched-on the time
display indicates: 15PR
Key 1:
1x = program 01
2x = program 06
3x = program 11
Key 2:
1x = program 02
2x = program 07
3x = program 12
Select Program number
Press both Up and Down
keys during 2 seconds
Press Cooking process
key
Cooking symbol lights
up
Press and hold the Time
key
Press Up or Down key
Press Grilling process key
Grilling symbol lights up
Press and hold the Time
key
Press Up or Down key
Press and hold the
Temperature key
Press Up or Down key
SETTING ACTUAL TIME 15 PROGRAMS
ENTERING A PROGRAM FIRST COOKING STEP (TIME)
SECOND COOKING STEP (TIME)FIRST COOKING STEP (TEMP.)

OPTIONAL SETTINGS
888350 88880030 888185 88880000
888185 88880000 888000 88880040
888350 88880046 888p01 88881055
Service Manual STG7 P Gas form 9123692 rev. 05/2013 Page 9
PROGRAMMING INSTRUCTIONS
Press Temperature Hold
process key
Temperature Hold
symbol lights up
Press and hold the
Temperature key
Press Up or Down key
Press Start / Stop key
On indicator lights up
Press Rotor key to start
turning the rotor
Press Rotor key again to
stop
Load the rotisserie with
products
Press and hold Tempera-
ture key
Press Up or Down key
Press program number
to load pre-set values
Press Rotor key
Heaters and front lamp
switch off
Rotor stops
On indicator is blinking
Process time in hold
Select a pre-defined
program
Press and hold Buzzer
key
Press Down key
SECOND COOKING STEP (TEMP.) TEMPERATURE HOLD
LOADING PROGRAM PROGRAM START & LOADING
INTERRUPTING ACTIVE PROGRAM SET ADDITIONAL BUZZER SIGNAL

888p01 88881030 888390 88880040
888390 88880035 888prh 88880059
888185 88880046
Service Manual STG7 P Gas form 9123692 rev. 05/2013
PROGRAMMING INSTRUCTIONS
Page 10
Select a pre-defined
program
Press and hold the
Program end key
Press Up key
Press and hold Tempera-
ture or Time key
Adjust temperature or
time with Up or Down
key
Select a pre-defined
program
Press Cooking, Grilling
or Temperature hold key
No time indication for
Temperature hold
Visible during process or
program selection
Press the Rotor key
Insert the probe in the
meat up to the core
Press Temperature sen-
sor key; after 20 seconds
the temperature reading
switches off
Under 40°C (104°F) the
display shows PRH
• Process indicators shows actual process.
After completion indicator switches off
• Time display shows remaining program
time which is the sum of the remaining
cooking and grilling time
• Temperature display indicates actual tem-
perature in the grill. Under 40°C(104°F)
the display shows PRH (preheat)When
remaining time reaches 0, the process
indicators and the On-indicatorswitches
off
SET PROGRAM END TIME DISPLAY SET TIME & TEMPERATURE
ADJUSTING ACTIVE PROGRAM
TEMPERATURE PROBE (OPTIONAL)
PREHEAT INDICATION
INDICATIONS DURING PROCESS