Fri-Jado LDR 8s AC Gas User manual

- NOTICE -
This manual is prepared for the use of trained Service Technicians and should not be used by
those not properly qualied. If you have attended a training for this product, you may be
qualied to perform all the procedures in this manual.
This manual is not intended to be all encompassing. If you have not attended a 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.
SERVICE MANUAL
LDR 8 s Auto-Clean Gas
MODELS
LDR 8s AC Gas
WWW.FRIJADO.COM
Service Manual LDR 8s ACII form 9120934 rev. 02/2022

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TABLE OF CONTENTS
Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
EMPTY PAGEEMPTY PAGE

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TABLE OF CONTENTS
Service Manual LDR 8s ACII form 9120934 rev. 02/2022
Versions
Version Issue date
dd/mm/yy
Remarks
20220210 10-02-2022 First release
INDEX
Index .......................................................................................................................................................... 3
LDR 8s ac Installation .............................................................................................................................. 6
LDR 8s AC Gas, technical data............................................................................................................... 6
Required tools......................................................................................................................................... 7
Introduction ............................................................................................................................................. 8
Unpacking the unit .................................................................................................................................. 8
Location................................................................................................................................................. 10
Electrical supply .................................................................................................................................... 10
Legs / Castors........................................................................................................................................11
Tethering of the unit................................................................................................................................11
Power, Water and Drain connections LDR 8s ac ................................................................................. 12
Water Requirements ............................................................................................................................. 13
Gas connection ................................................................................................................................... 14
Gas pressure ....................................................................................................................................... 15
Flue gas analyser.................................................................................................................................. 16
Gas consumption .................................................................................................................................. 16
Connecting the drain tube..................................................................................................................... 17
Extraction of the rotisserie..................................................................................................................... 17
grease Collection .................................................................................................................................. 18
Test run ................................................................................................................................................. 18
Instructions for operators ...................................................................................................................... 18
LDR 8s ac on stand.............................................................................................................................. 19

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TABLE OF CONTENTS
Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
Software “s” controller (touch screen) ................................................................................................ 20
Switching On......................................................................................................................................... 20
Menu overview sw version 1.00.17...................................................................................................... 20
Running a cooking program ................................................................................................................ 21
Creating a cooking program ................................................................................................................ 22
Editing a cooking program .................................................................................................................. 22
Example of error message.................................................................................................................... 23
Audio volume and sound setting........................................................................................................... 23
The Cleaning program .......................................................................................................................... 24
Cleaning the touch screen (while in operation)..................................................................................... 24
Cleaning Process TDRac (3 cycles) ................................................................................................ 25
Pump and valves in action during cleaning........................................................................................... 26
I/O test ................................................................................................................................................. 28
Exchanging data with the USB drive..................................................................................................... 29
Updating software LDR ac (S-control) ............................................................................................... 31
Automatic cook correction..................................................................................................................... 32
Default parameters Version 1.00.34 LDR 8s-ac 208V ...................................................................... 33
Explanation of parameters .................................................................................................................... 37
Electrical tests ........................................................................................................................................ 41
Measuring the Blower motor ................................................................................................................ 41
Measuring the 160W lamp ................................................................................................................... 42
Measuring the Rotor (drive) motor ....................................................................................................... 43
Measuring the PT1000 sensor............................................................................................................. 43
Measuring the motor valve................................................................................................................... 44
Measuring the Pump............................................................................................................................ 44
Service procedures ................................................................................................................................ 45
Access to service parts LDR 8s ac ....................................................................................................... 45
Blower motor......................................................................................................................................... 47
Rotor drive motor .................................................................................................................................. 48
Trouble shooting .................................................................................................................................... 51
Overview of error codes TDRac............................................................................................................ 51
Trouble shooting by Symptom. ............................................................................................................. 52
Trouble shooting by part / function........................................................................................................ 55
Hydraulic overview................................................................................................................................ 59
Exploded views and partslists .............................................................................................................. 60
LDR 8s AC gas, Electrical parts ............................................................................................................ 60
LDR 8s AC gas, Partslist Electrical parts .............................................................................................. 61
LDR 8s AC gas, Electrical parts ............................................................................................................ 62
LDR 8s AC gas, Partslist Electrical parts .............................................................................................. 63
LDR 8s AC gas, Control panels ............................................................................................................ 64
LDR 8s AC gas, Partslist Control panels............................................................................................... 65
LDR 8s AC gas, Doors .......................................................................................................................... 66
LDR 8s AC gas, doors........................................................................................................................... 67
LDR 8s AC gas, Lighting and sensors .................................................................................................. 68
LDR 8s AC gas, Lighting and Sensors.................................................................................................. 69
LDR 8s AC gas Rotor............................................................................................................................ 70
LDR 8s AC gas, Partslist Rotor ............................................................................................................. 71
LDR 8s AC gas, Blower & Heating........................................................................................................ 72
LDR 8s AC gas, Partslist Blower & Heating .......................................................................................... 73
LDR 8s AC gas, Cleaning system ......................................................................................................... 74
LDR 8s AC gas, Partslist Cleaning system ........................................................................................... 75
LDR 8s AC gas, Sheet metal ................................................................................................................ 76
LDR 8s AC gas, Partslist sheet metal ................................................................................................... 77

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TABLE OF CONTENTS
Service Manual LDR 8s ACII form 9120934 rev. 02/2022
LDR 8s AC gas, Underframe................................................................................................................. 78
LDR 8s AC gas, Partslist Underframe................................................................................................... 79
Fasteners .............................................................................................................................................. 80
Electrical diagrams................................................................................................................................. 82
Circuit diagram LDR 8s ac .................................................................................................................... 82
Wiring diagram LDR 8s ac .................................................................................................................... 83
Overview of I/O board with interface board........................................................................................... 84

Page 6 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
LDR 8S AC INSTALLATION
LDR 8S AC GAS, TECHNICAL DATA
American models
ModelsLDR 8 s AC Gas
Dimensions approx. Width inch 52
Depth inch 38 ¼
Height inch 71½
Weight Gross lbs. 800
Net lbs. 690
Maximum ambient temperature °F 95
Sound pressure dB (A) < 70
Electrical installation Voltage V 1~ 208
Frequency Hz 50/60
Required power kW 0.9
Max. nominal current A 4.4
Plug NEMA 6 - 15P
Power cable Length inch 75
Water connection Aerated inch ¾ (1x)
Water pressure kPa 200 – 500
Acidity pH 7.0 - 8.0
Chlorides ppm <30
Hardness ¹ dH <4
Drain Open connection inch min. 1⅝
Gas System Refer to data plate
Power rating (max) BTU / KW 82.000 / 24
Connection Inch NPT ½
Gas specication Consumption ² Gas pressure min/max
Natural gas 2.2 mᶟ/hr 7”wc (17 mbar)/14”wc (35mbar)
1) See chapter “water requirements” for detailed information
2) At sea level 1013 mbar 20°C
Consult the identication plate to get the proper specications of the rotisserie. The electrical data may
vary from country to country.
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.

LDR 8s ac Installation
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Service Manual LDR 8s ACII form 9120934 rev. 02/2022
For proper installation Fri-Jado recommend having the following list of tools available during
installation:
• Standard set of tools.
• Metric wrenches, sockets and hex socket key wrenches.
• Multi-meter.
• AC current clamp tester.
• Temperature tester.
• Insulation value tester (Megger).
• Gas pressure meter.
• Gas consumption/ow meter.
• Field Service Grounding Kit.
• Flue gas analyzer (optional).
REQUIRED TOOLS

LDR 8s ac Installation
Page 8 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
INTRODUCTION
• Unpacking of the unit.
• Remove the pallet under the unit with the help of a fork lift.
• Put the unit on his location.
• Check if there is enough free space around the unit (see installation drawing).
• Check the electrical supply.
• Tethering of the unit.
• Connect the water.
• Connect drain.
• Grease collection.
• Make a test run on 220 °C (425°F).
• Give instructions to the operator.
UNPACKING THE UNIT
Immediately after unpacking the oven, check for possible shipping damage. If the oven is found to
be damaged, save the packaging material and contact the carrier.
The standard way to remove the oven from a pallet is with a fork lift.
The alternative way is explained on the next page.
Pictures may di󰀨er a little form reality and package might be from wood.
Do this with at least 2 people.
Dispose the packagaging according local legislation..

2
LDR 8s ac Installation
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Service Manual LDR 8s ACII form 9120934 rev. 02/2022
Cut straps, remove box and tempex. Remove screws (front 4x and back 4x)
Place the ramps in front of the pallet
and fasten them. Tilt the unit slightly and remove the front beam.
Tilt the unit the other way and remove
the beam at the back.. Carefully roll the unit onto the oor.
Fasten the ramps !Fasten the ramps !
Keep locked !Keep locked !
Keep locked !Keep locked !
Unlock and rotateUnlock and rotate
backwards !backwards !

980 mm
38 ½ ”
LDR 8s ac Installation
Page 10 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
Prior to installation, test the electrical service to assure that it agrees with the specications on the
machine data plate located on the right side panel near the controls. The connecting cable for the
unit must be equipped with an approved plug connection. If use is to be made of a permanent con-
nection, the connecting cable must be connected to a manual on/o󰀨 switch that is installed near
the unit in a clear visible manner.
Supply voltage 208V~
Required power 0,9 kW
Max. nominal current 4,4 A
ELECTRICAL SUPPLY
IMPORTANT: Make sure you lea-
ve su󰀩cient space around the ro-
tisserie to easily remove or insert
the rotor. If the base has (rotating)
wheels, the oor on which it rests
must be level.
LOCATION
The oven must be installed on a level surface. The
installation location must allow adequate clearances
for servicing and proper operation.
The oven must be protected against falling moisture !
The ambient temperature of the rotisserie must be
between 10 and 30 °C (50 and 86 °F).
Place the rotisserie, using a spirit level, at on a solid
surface. Mind the weight of the rotisserie!
The unit is factory default equiped with a 75 inch cord with NEMA 6-15P plug.

LDR 8s ac Installation
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Service Manual LDR 8s ACII form 9120934 rev. 02/2022
The LDR 8s AC is placed on a stand with 4 locking swivel castors.
LEGS / CASTORS
TETHERING OF THE UNIT
Warning: Safety standards require that, when this appliance is properly connected to the electrical
power supply using exible conduit, adequate means be provided to limit movement of the ap-
pliance without depending on or transmitting stress to the electrical conduit. This means that, as
part of the installation, the base or bottom unit of stacked models must be secured to the building
structure (typically either wall or oor) to limit the movement of the appliance and, thus, helping to
prevent damage to the conduit during cleaning, maintenance and service operations.
A tether bracket, as shown on the drawing below, is provided with the stand. Based on the routing
of the exible conduit, the bracket must be installed along with the caster to one corner of the base
using the hardware provided. The remaining open hole in the center of the tether bracket is to
be used to secure one end of the tether (locally supplied chain, cable, etc.). The other end of the
tether is to be secured to an anchoring point in the building structure.
Note: Length of tether must be shorter than the exible conduit to make sure that during appliance
movement, no stress is transmitted to the conduit.

1
3
4
25
LDR 8s ac Installation
Page 12 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
POWER, WATER AND DRAIN CONNECTIONS LDR 8S AC
The Power (electric and gas), water and drain connections can be found below the con-
troller side of the unit.
See the labels 1 untill 5
1 208V Mains cable 75” with Nema 6-15P Plug
2 Gas supply connection 1/2” NPT
3 Water supply hose G 3/4”, L= 1,1 mtr (43”)
Flush the tap before connecting
4 Drain hose Ø 33 x ø 25, L= 1,2 mtr
(Ø 1 5/16 x ø 1”, L= 47”)
See chapter “connecting the drain tube”
for further information.
5 Grease outlet valve.
1
2
3
4
5
Side view
Tether bracket

LDR 8s ac Installation
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Service Manual LDR 8s ACII form 9120934 rev. 02/2022
WATER REQUIREMENTS
The supplied tap water must have the following conditions:
1. Minimum pressure 200 kPa (2 bar)
2. Maximum pressure 500 kPa (5 bar)
3. Maximum water temperature 55 °C (130 °F)
4. Acidity pH 7.0 - 8.0
5. Chlorides less than 30 ppm
6. Use a sediment pre-lter or a strainer for the reduction of silica and other non-dissolved sedi-
ments.
Water hardness and descaling lters.
7. A descaling lter is advised when the hardness of the water is > 4° dH (4 Grains/Gal).
8. A descaling lter is mandatory when the hardness of the water is > 20° dH (20 Grains/Gal).
Note that the cleaning capacity of the cleaning tablets will decrease with harder water.
The by-pass of the descaling lter, if applicable, needs to be adjusted to zero.
Refer to the lters manual to determine the lter capacity. This lter capacity needs to be adjusted
in the manager parameters.

LDR 8s ac Installation
Page 14 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
GAS CONNECTION
1. All gas supply connections and any pipe joint compound used must be resistant to the action
of propane gases. Codes require a gas shuto󰀨 valve be installed in the gas line ahead of the
rotisserie.
2. With a gas conduit (not included) you can lead the gas connection to the main gas supply.
Connect the rotisserie to the gas line after leveling. Gas supply line must be at least the equi-
valent of 1/2“ (12.7 mm) iron pipe and capable of maintaining the required gas pressure during
full power. Make sure the pipes are clean and free of obstructions, dirt, and piping compound.
Note: After the piping has been checked for leaks, fully purge gas pipes to remove air. Disconnect
the rotisserie from the gas supply piping system during any pressure testing on the gas supply
piping system.
Note: Check all joints in the gas supply line for leaks prior to start up the rotisserie. You can use a
soap and water solution. Do not use an open ame.
3. The gas connection has an outside diameter of ½ inch. See position 2on the above chapter
“Power connection. The gas connection must be mounted by a registered installer.
4. The rotisserie must be installed so that the ow of combustion and ventilation air will not be
obstructed. Make sure there is an adequate supply of air in the room to allow for that required
combustion of gas of the rotisserie chamber.
5. Keep the space around the bottom and the ventilation opening in the top of the rotisserie free
from obstacles to guarantee a good air ow in the electrical compartment and combustion
chamber.
6. Appliance is for use only with the specic legs or casters specied by the manufacturer.
7. North American rotisseries must be installed conform local codes, or in the absence of local
codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Pro-
pane Installation Code, CSA B149.1, as applicable, including:
8. i) The appliance and its individual shuto󰀨 valve must be disconnected from the gas supply
piping system during any pressure testing of that system at test pressures in excess of ½ psi
(3.5 kPa).
9. ii) The appliance must be isolated from the gas supply piping system by closing its individual
manual shuto󰀨 valve during any pressure testing of the gas supply piping system at test pres-
sures equal to or less than ½ psi (3.5 kPa).
10.North American rotisseries must when installed be electrically grounded in accordance with
local codes, or in the absence of local codes, with the National Electric Code, NFPA 70, or the
Canadian Electrical Code, CSA C22.2, as applicable.
11. North American rotisseries equipped with casters must be installed with connectors that com-
ply with the Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 • CSA 6.16.
This connection must include a quick disconnect device that complies with the Standard for
Quick Disconnect Devices for Use With Gas Fuel, ANSI Z21.41 • CSA 6.9.
12.Adequate means must be provided to limit the movement of the appliance without depending
on the connector and quick-disconnect device or its associated piping to limit the appliance
movement. See chapter “Thethering of the unit.

LDR 8s ac Installation
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Service Manual LDR 8s ACII form 9120934 rev. 02/2022
The gas inlet pressure has to be according to the table on the technical data page. (Chapter 1)
The pressure can be checked on the gas block with a pressure meter like in the picture below.
Gas inlet: Inlet of gas after gas pressure reduction valve (max. 22“ H2O).
Pressure depending of gas type.
Gas outlet: Outlet of gas into gas mixture blower.
Coils: 2 Coils for the gas valves.
Inlet pressure: Measuring tube for gas pressure after reduction valve.
In order to measure loosen the screw on inside of the tube.
GAS PRESSURE
Measuring notes:
• Inlet pressure: During operation you measure the pressure of the setting of the reduction
• Outlet pressure: During operation you measure a pressure of zero.
You can use this measuring point also to check if the gas valves are opening. When you start up
the machine and the valve is not opened yet you measure a under pressure due to the suction of
the gas mixture blower and this pressure will be zero when the valve is opened.

LDR 8s ac Installation
Page 16 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
FLUE GAS ANALYSER
1. With the ue gas analyzer you can measure the exhaust gas on the rotisserie for toxicity. With the use
of a Testo 330-1LL you get the following measurements:
2. Values below are references and factory defaults.
RPM [min-1] CO2 [%] Power Hs in [kW] Power Hs in [BTU]
High load 6350 9,70 % 24 82000
Low load 2500 9,20 % 8,9 30368
Start load 4640 17,5 59030
GAS CONSUMPTION
1. With a ow meter you can measure the gas consumption/ow. See table on page 4.
2. To get an accurate consumption you have to do a measurement of 3-5 minutes. During this period the
rotisserie may not be turned o󰀨 and no other gas device on the same gas line may be active.

√X
√XX
LDR 8s ac Installation
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Service Manual LDR 8s ACII form 9120934 rev. 02/2022
CONNECTING THE DRAIN TUBE
An open draining system with a 110 mm (4 1/2”) funnel is recommended. The drain tube has an
outside diameter of 33 mm (1 5/16”).
• It is not allowed to make a closed connection!
• Make sure that the tube is not kinked and is sloping downwards to the drain funnel.
• The minimum inside diameter of the sewer pipe needs to be 40 mm (1 1/2”).
• A siphon in the customers sewer is highly recommended to prevent odors from coming out of
the sewer.
• See below examples.
The rotisserie must be located under an extraction hood which has adequate connection to an
exhaust duct and extends 8” beyond the rotisserie sides.
Clearance above the rotisserie ue should be adequate for the products to escape so that there
is no interference with the heat circulation in the rotisserie. Refer to ANSI/NFPA 96, ” Standard for
Ventilation Control and Fire Protection of Commercial Cooking Operations” (latest edition). The
LDR Gas produces about 600 cf water vapor per cycle.
Consider the following guidelines for the extraction hood:
• The minimum capacity of the extraction hood has to be 900 cfm
• The extraction hood has to extend minimum by 8” on all sides of the rotisserie
• The extraction hood has to have a free height, above the rotisserie, of a minimum of 16”
• The rotisserie has to be accessible for service purposes
• Flue connections should never be made directly to the rotisserie.
EXTRACTION OF THE ROTISSERIE
Possible lay outs of drain Faulty lay outs of drain

LDR 8s ac Installation
Page 18 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
After installation of the rotisserie the operator of the unit has to be instructed.
The instruction has to cover the following subjects:
• Programming and options.
• Working of the unit.
• Free space of unit for cooling of drive motor and blowers.
• Run through the user manual.
• How to run the cleaning program and placing cleaning tablets.
• Cleaning of the tablet dispenser and bottom lters after the cleaning program has nished.
• Periodical maintenance:
o Cleaning of fan plate every 3 months.
o Yearly maintenance by service agent.
• How to react for information or service calls.
INSTRUCTIONS FOR OPERATORS
The oven must be burned in to release any odours that might result from heating the new oven
surfaces. Operate the oven at maximum temperature setting of 220°C (425°F) for 30 minutes.
Smoke with an unpleasant odour will normally be given o󰀨 during this burn-in period.
TEST RUN
Place the bucket, which is delivered with the unit, inside the stand under the drain pipe.
It is also possible to put other containers in the underframe to collect the grease.
Note 1: In one run, 6 liters (1.5 gallon) grease can come out.
Note 2: The temperature of the grease can go up to 80 °C (176 °F).
Make sure that the container meets the above requirements.
GREASE COLLECTION

314
121
973 (38 1/4”)
860 (33 1/2”)
(723 28 7/16”)
1819 (71 1/2”)
1318 (52”)
782 30 3/4”)
>50 (2”)
1
8
9
6
1
3
4
1230 (48 1/2”)
1470 (58”)
895 (35 1/4”)
1845 (72 5/8”) >100 (4”)
66
>50 (2”)
25
1
3
4
2
5
LDR 8s ac Installation
Page 19
Service Manual LDR 8s ACII form 9120934 rev. 02/2022
LDR 8S AC ON STAND
Location of mains connection
Location of gas supply connection 1/2” NPT
Location of water connectionG 3/4” BSP
Location of drain hose OD Ø 33 mm (1 1/16”)
Location of fat drain
Minimum required space
Example of funnel
Sewer pipe ID ≥ Ø 40 mm (1 5/8”)
1
2
3
4
5
6
8
9

Page 20 Service Manual LDR 8s ACPKII form 9120934 rev. 02/2022
SWITCHING ON
SOFTWARE “S” CONTROLLER (TOUCH SCREEN)
Touch the screen
somewhere
Touch the ON /
OFF symbol
Main functions
Language
ON / OFF or stop program
Recipes menu
Home screen
Cleaning program
Help function
Settings
Wipe/clean touch screen
(locks screen for 60s.)
Recipes menu
Messages (under construction)
Manager and service settings (see below)
Log & maintenance menu
Help menu (under construction)
Clean screen. Locks the touch screen for 60
seconds.
About. Gives information about soft- and hard-
ware.
Screenshot. Only available with a wi connec-
tion.
The manager pin code can be chosen freely.
0000 = free access.
The service pin code is 4878.
Once the service menu is entered, also the ma-
nager menu is unlocked.
Once the manager or service menu is opened,
it stays unlocked for 30 minutes.
See parameter lists at the end of this chapter.
Home screen
MENU OVERVIEW SW VERSION 1.00.17
Pause
Extra time
Continue
Create recipe
Edit recipe
Conrm
Step back
Delete
Tap screen
Swipe
Other symbols