Lincat Opus 700 Series User guide

SPARE PARTS DIAGRAM FOR
First Choice Group
Blakeney Way, Kingswood Lakeside
Cannock, Staffs, WS11 8LD
TEL: [phone] FAX: [phone]
Email: [email protected]
Web: www.firstchoice-cs.co.uk
Medium Duty Gas Steamer
Opus 700 Range

© 2008 LINCAT LIMITED, WHISBY ROAD, LINCOLN, LN6 3QZ
ALL DIMENSIONS IN mm
UNLESS OTHERWISE
STATED
MATERIAL
DRAWN BY
AREA m
SCALE
DATE ECN
DATE
TITLE
DWG No.
REVISION
2
GRAIN ALONG X AXIS U.O.S. BURR SIDE DOWN U.O.S.
THIRD ANGLE PRO ECTION
SHEET
OF
GENERAL TOLERANCE u 0.4mm
NTS(A3)
Kevin Hanson
03.03.08
3096
21.01.07 OG7502 E PLODED
DRAWING
ST 12
FRONT ACCESS PANEL
LOWER DOOR HINGE BAR
MID FRONT FACIA
LE42
LE42
LE42
LE42
KN206
KN206
DRIP TRAY
TOP DOOR ASSEMBLY
BOTTOM DOOR ASSEMBLY
LH SHELF RACK ASSEMBLY
RH SHELF RACK ASSEMBLY
HI132
HI132
HI132
HI132
UPPER BACK
LOWER BACK
TOP
INSULATION (TOP PIECE)
WATER RESEVOIR
LID
WATER RESEVOIR
WATER OUTLET
FS01
LEVEL SWITCH
FC10
INLET PIPE
WATER INLET
WELDED/RIVETED ASSEMBLY
CAN NOT BE DIS-ASSEMBLED
VENT PIPE ASSEMBLY
DRAIN TAP ASSEMBLY
IG38
SW67
SO22
SOLENOID
INLET PIPE
TH73
SAFETY STAT
MC01
MAGNETIC DOOR CATCH
VA20
GAS VALVE
BATTER PLATE
BATTER PLATE
18925
DRAIN LATCH
CO13
18955
BU55
CO20 TH77
OPERATING STAT
PE02
CV01
CHECK VALVE
TA29
SE37
DOOR SEAL
A
DETAIL A
PI08
PILOT BODY
TC40
THERMOCOUPLE
TC41
THERMOPILE
E57 (NG)
E56 (LP)
PILOT IN ECTOR
E153 (NG)
E98 (LP)
BURNER IN ECTOR
BU77
BURNER

IS468 ECN3639
User, Installation, Servicing and Conversion
Instructions
OG7502 and OG7504
Opus 700 Medium Duty Gas
Atmospheric Steamers

IS468 ECN3639
2
Dear Customer,
Thank you for purchasing this Lincat product.
This is just one of over 450 different items of catering equipment available
which is constantly being extended and improved. Details are available from
your local distributor or direct from us.
Used for the purposes for which it is intended, and with careful maintenance
as outlined in this User Guide, your Lincat product will give you years of
trouble free service.
IMPORTANT INFORMATION
Please read all of the safety and operating instructions carefully before using
this product. Please pay particular attention to all sections of this User Guide
that carry warning symbols and notices.
WARNING!
This is a Warning symbol. This symbol is used throughout the user guide
whenever there is a risk of personal injury. Ensure that these warnings are read
and understood at all times.
CAUTION!
This is a Caution symbol. This symbol is used throughout the user guide
whenever there is a risk of damaging your Lincat product. Ensure that these
warnings are read and understood at all times.
NOTE:
This is a Note symbol. This symbol is used throughout the user guide to provide
additional information, hints and tips.
NOTE

IS468 ECN3639
3
CONTENTS
Contents Page
Customer Information………………………………………………………. 2
Warnings and Precautions………………………………………………… 3
Technical Data……………………………………………………………….. 4
Commissioning………………………………………………………………. 5
Check List of Enclosures………………………………………………….. 5
Installation…………………………………………………….……………… 6-7
Conversion of Gas Types………………………………………………….. 7
User…………………………………………………………………………….. 8-10
Servicing ……………………………………………………………………… 11
Component Replacement ………………………………………….….…... 12-14
Spare Parts List……………………………………………………….……... 15
Fault Finding………………………………………………………………..... 16-18
Service information…………………………………………………………. 19
Guarantee………………………………………………………….……….…19
WARNINGS AND PRECAUTIONS
It is mandatory that all appliances are installed, commissioned and serviced by a
qualified and competent person as defined by the regulations in force in the country
of installation.
Failure to comply will invalidate the warranty.
WARNING!
This appliance must be installed by a competent installation engineer in accordance with
the installation instructions, and should conform to the following requirements:
Do not obstruct or block the appliance flue.
Installation must include sufficient ventilation to prevent the occurrence of unacceptable
concentrations of substances harmful to health in the room in which they are installed.
It is recommended that this appliance is sited under an extraction canopy for the removal of
combustion products
After operation, some parts of the appliance will remain hot for a period of time. Please take
care to avoid accidental burns.
This appliance is for professional use only and must only be used by qualified people.
CAUTION!
All equipment must be earthed to prevent shock.
Do not connect directly to any flue, ducting or mechanical extraction system.
Installation should allow for a sufficient flow of fresh air for gas combustion.
Parts which have been protected by the manufacturer or his agent must not be adjusted by
the installer or user.

IS468 ECN3639
4
TECHNICAL DATA
Model
OG7502
OG7504
Dimensions
Overall height (mm)
1600
Width (mm)
630
600
Depth (mm)
950
750
Weight (kg)
123 kg (Nett)
110 kg (Nett)
Usable oven capacity w x d x h (mm)
545 x 680 x 720
545 x 480 x 720
Oven shelf size (mm)
650 x 530
434 x 530
Heat Input
Total heat input Natural (Gross)
13.0 kW
Total heat input Propane (Gross)
13.0 kW
Connection and Operating Pressures
Gas inlet connection
½” BSPT Male
Supply Pressure - Natural
20 mbar
Operating Pressure - Natural
16 mbar
Supply Pressure - Propane
37 mbar
Operating Pressure - Propane
25 mbar
Gas Consumption
Total gas rate –Natural
1.24 m3h-1
Total gas rate –Propane
0.93 kg h-1
Water Connection
Inlet Connection
15mm
Pressure
20 –1000kPa (0.2 –10bar)

IS468 ECN3639
5
NOTE
COMMISSIONING
PREPARATION
Remove all packaging and protective coatings prior to installation.
VENTILATION
The area in which this equipment is to be installed should have sufficient fixed ventilation to
comply with local legislation requirements. It is recommended that a room, or internal
space, be provided with a minimum free area of 4.5cm2per kW (3,400Btu/hr) of total heat
input.
CHECK LIST OF ENCLOSURES
Please ensure the following items are included with this piece of equipment:
Model
OG7502
OG7504
Tick
Warranty Card
1
User Instructions
1
SERIAL NUMBER
Each appliance manufactured at Lincat has a unique identifying number found in
the top right hand corner of the data plate, located behind the lower door on the LH
chassis leg. Please record that number in the space provided should it be required
for future reference.
Serial Number
MARK OF CONFIDENCE
Every single product that leaves our factory bears a serial plate showing the
assembler’s initials. It’s a mark of confidence we have in our people and our
manufacturing process.

IS468 ECN3639
6
INSTALLATION
SITING
The installer must ensure that all regulations are met and that there is an unobstructed
minimum distance of 400mm from the top of the flue to the ceiling, which must be of non-
combustible material.
The appliance should be installed on a level surface ensuring the unit is stable and firmly
located. It should be well lit, draught free and positioned to minimise the possibility of
accidental touching.
Any partitions, walls or kitchen furniture in close proximity must be of non-combustible
materials and not be closer than 100mm from the sides and rear. A minimum clear space
of 600mm to the front to allow for safe operation.
WATER SUPPLY AND CONNECTION
Install in accordance with BS EN 1717 and the National Water Regulations in Use.
Connection is at the rear of the unit via a 15mm compression fitting with check valve.
When making the connection to the appliance an isolating cock should be fitted into the
supply line close to the unit, for emergency shutdown or servicing purposes.
It is recommended that the overflow pipe at the rear of the unit be connected to a drain.
GAS SUPPLY AND CONNECTION
Connection is at the rear of the unit via a 1/2" G male thread.
Connection shall comply with local regulations. The gas supply hose or tubing should be
periodically examined and replaced as necessary.
When making the connection to the appliance an isolating cock should be fitted into the
supply line close to the unit, for emergency shutdown or servicing purposes.
1 OF 1
GAS 1/2" BSPT
WATER INLET
15mm COMPRESSION
OVERFLOW
PIPE - 15mm
Fig. 1

IS468 ECN3639
7
INSTALLATION (cont.)
SUPPLY PRESSURES
To gain access to the gas pressure test nipple open the lower compartment door. The
nipple is situated on the control valve.
Remove the blanking screw and attach a pressure gauge to the boss of the test
nipple.
Light the burner.
With main burner at maximum adjust the onboard governor to 15mbar for Natural
gas and 25mbar for Propane gas.
Fig. 2
OPERATIONAL CHECK
Although all Lincat products are functionally checked during manufacture, commissioning
must include an operational check of all controls.
Light the unit several times as per instructions, checking for correct and smooth
operation.
CONVERSION OF GAS TYPES
WARNING: This unit is supplied ready for installation to the supply specified at the
time of ordering. Should conversion be necessary, please follow the instructions
below.
Conversion of this appliance must only be carried out by a qualified gas engineer.
Remove main burner jets and aluminium washer. Do not re-use washer. Care
must be taken not to cross thread the jets when refitting.
Remove pilot jet and fit replacement.
Remove data plate & sticker from the unit and replace with data plate and sticker
supplied.
For Natural to Propane Gas only: remove the gas control regulator screw and
replace the spring (with the one provided). Carefully re-assemble.
Re-set the burner pressure (see table below) via the burner test nipple and the gas
controls governor. Replace the governor cap on completion.
Test unit for gas soundness.
Model
Gas
Pressure
Injector

Mark
Part No.
Regulated
OG7502
OG7504
G20
20 mbar
Main
2.80
280
JE153
16 mbar
Pilot
41
JE57
G31
37 mbar
Main
2.00
200
JE98
25 mbar
Pilot
30
JE56
PRESSURE TEST POINTS
TP THTP TH
PILOT
OUT IN
GOVENOR ADJUSTMENT
SCREW

IS468 ECN3639
8
USER INSTRUCTION
APPLIANCE USE
This appliance is only for professional use and should only be used by qualified personnel.
Ensure that the person responsible understands how to light, safely operate, clean and
shutdown the appliance and is made aware of the position and operation of the isolating
valves (gas, water & electricity) in the event of an emergency.
CONTROLS
1 OF 1
6
4
8
1
3
2
8
7
Fig. 3
1) Drain Valve (Drip Trough)
2) Re-Set Button (Safety Cut-Out Thermostat)
3) Drain Valve (Oven Chamber)
4) Piezo Ignitor
5) Control Knob
6) Burner/Pilot Viewing Hole
7) Check Valve c/w Tap
8) Water Inlet Tap
WATER LEVEL
1 OF 1
WATER LEVEL
INDICATION
NOTE:-
SHELF ORIENTATION
(BARS RUN FRONT-BACK)
Fig. 4

IS468 ECN3639
9
USER INSTRUCTION (cont.)
LIGHTING SEQUENCE
Please ensure that the gas and water isolation valves for the appliance are turned to
the ‘OPEN’ or ‘ON’ position before attempting to light the appliance.
DO NOT OPERATE WHEN TANK IS EMPTY.
Open the lower compartment door to gain access to the controls.
Check water level is between indicator marks (see Fig. 4).
Push in the control knob, then rotate anti-clockwise to the “pilot” position (2) and
keep depressed.
Ignite the pilot by depressing the piezo ignition switch (3).
(If the pilot fails to ignite, turn the control knob to the “OFF” position and repeat).
After ignition, hold the knob in for approximately 20 seconds to ensure that the pilot
has established correctly.
Release the knob and fully turn anti-clockwise to the “ON” position (4).
Note: The control valve is fitted with a step opening ignition device which reaches full rate
after approximately 10 seconds.
Caution: The re-start interlock device prevents the appliance from re-igniting until the flame
supervision device has interrupted the gas flow. After this stage it is possible to re-ignite the
appliance.
Standby: Turn the control knob (6) clockwise to the “pilot” position.
Note: Should the safety cut-out thermostat (2) operate during normal use the unit will shut
down. To re-light the unit re-set the safety cut-out thermostat by depressing the red re-set
button (2). The re-set button is located behind the lower compartment door at the rear of
the appliance (see Fig. 3).
SHUT DOWN
To turn the unit off completely, slightly depress the control knob and rotate to the “OFF”
position (1), indicated by. Close gas and water isolating valves. Drain tank (see Fig. 6)
and thoroughly dry inside of tank.
Warning: When operating the gas control valve behind the door, care must be taken to
avoid accidentally touching internal surfaces, which become hot during normal operation.
1 OF 1
1
24
3
Fig. 5

IS468 ECN3639
10
USER INSTRUCTION (cont.)
DRAINING OVEN CHAMBER
Before draining it is recommended that the appliance is allowed to cool.
To drain, turn the water supply off and place a suitable receptacle beneath the valve. Push
catch to the left (Fig. 6) and open drain handle (Fig. 7).
FILTER
Fig. 6 Fig. 7 Fig. 8
OPENING THE STEAMER DOOR WHEN HOT:
IMPORTANT –Do not fully open door when steamer is hot. First, slacken off door
handle and allow steam to vent around door opening. Wait at least 15-20 seconds
before slowly opening door fully. This precaution prevents a sudden discharge of
steam into the operators’ face. Always open door slowly and in two stages.
CLEANING
It is recommended that the appliance be drained and cleaned at the end of each
working day in order to prevent any build-up of sediment and/or grease.
Ensure the appliance is cool and the gas and water supplies are isolated before
commencing cleaning.
Open drain taps, remove oven furniture, filter (Fig. 8) and clean all inner surfaces
using a warm detergent solution.
Rinse and dry thoroughly.
After use wash the unit down with warm detergent solution.
Ensure the Cavity Filter (Fig.8) is removed and cleaned on a daily basis or as and
when required.
Keep the Cavity Face and Door Seal clean, to ensure a good steam seal. Following
this procedure will also prolong the life of the seal.
APPLIANCE USE
Do not use any products containing chlorine or hydrochloric acid to clean stainless
steel surfaces.
Do not clean the appliance using a water jet.

IS468 ECN3639
11
SERVICING
For information on authorised service agents please see the section at the end of
these instructions.
ROUTINE SERVICE
1) Carry out a general check of the installation paying particular attention to the following:-
has the unit been installed using the correct gas hose?
does the unit have a safety chain?
does the unit have separate isolation valves for gas and water?
2) Check all components for correct operation and replace where necessary, following the
appropriate instructions.
3) Visually check the burner operation, closely observe the flame picture and look for
evidence of debris or damage. Remove burner (see page 12) and clean or replace as
necessary.
4) Visually check the injectors and replace (see page 12) or clean as necessary (clean
using a brush with nylon bristles or similar). Avoid using metal reamers or wire as this
may damage or increase the orifice size.
5) Check the burner pressure and adjust where necessary with the unit in full operation, at
the test nipple located on the valve (See page 7).
6) Check the alignment of the thermocouple and electrode within the pilot assembly. Adjust
if necessary.
7) Ensure that the flue is clear.
8) Ensure that all water carrying components are sound and free from leaks.
9) Check correct operation of the float valve.
10) Carry out a gas soundness check.

IS468 ECN3639
12
COMPONENT REPLACEMENT
Ensure that the gas, water and electricity supplies to the unit have been turned off
before removing or dismantling any components.
Control Valve
Undo the thermocouple and remove thermopile wires (noting their position).
Disconnect the gas supply, burner feed and pilot pipes.
Remove the 4 screws securing the valve to the chassis.
Remove brass fittings from the old valve and fit these to the replacement valve.
Note: Replacement valves are not fitted with the brass fittings.
Re-assemble in the reverse order.
Perform gas soundness test of circuit prior to operation of appliance.
Burner & Injector
Remove the Stainless Steel cover secured by 4 screws.
Remove the Mild Steel cover plate secured by 7 screws.
At this stage the injector (with its washer) can be removed using a 12mm spanner.
Remove the nut (using an 8mm spanner) securing the RH side of the burner.
Undo the thermocouple using a 10mm spanner.
Disconnect the ignitor lead from the electrode.
Undo the pilot pipe using a 10mm spanner taking care not to lose the pilot
injector.
Undo the gas supply coupling to the burner.
Undo the 2 screws below the LH side of the burner.
The burner together with the pilot assembly can now be withdrawn.
Re-assemble in the reverse order.
Perform gas soundness test of circuit prior to operation of appliance.
Pilot Assembly
Proceed as described above.
Once the burner, together with the pilot assembly has been removed, the pilot
assembly can be removed from the burner by undoing the 2 fixing screws.
Re-assemble in reverse order.
Perform gas soundness test of circuit prior to operation of appliance.
Thermocouple
Remove the Stainless & Mild Steel covers secured by 4 & 7 screws respectively.
Undo thermocouple from the valve body using a 9mm spanner.
Undo thermocouple from the pilot assembly using a 10mm spanner.
Re-assemble in reverse order.
Thermopile
Remove the Stainless & Mild Steel covers secured by 4 & 7 screws respectively.
Disconnect wires from valve (noting their position).
Undo thermopile from pilot assembly using a 10mm spanner.
Re-fit components.
Perform gas soundness test of circuit prior to operation.

IS468 ECN3639
13
COMPONENT REPLACEMENT (cont.)
Ignitor Electrode
Remove the Stainless & Mild Steel covers secured by 4 & 7 screws respectively.
Disconnect wire from electrode.
Undo electrode from pilot assembly using a 10mm spanner.
Re-assemble in reverse order.
Thermostat
Working in the oven chamber remove the oven furniture and disconnect the
thermostat phial from its holder.
In the lower chamber undo the 2 screws securing the hinged drop-down panel.
Undo the 2 screws securing the thermostat to its bracket.
Disconnect the wires (noting their position).
Remove the upper back panel secured with 12 screws.
Withdraw the phial through its gland.
Re-assemble in reverse order.
Ensure that the thermostat phial is not kinked –has no sharp bends and is
correctly located in its holder.
Safety Thermostat
Working in the oven chamber remove the oven furniture and disconnect the
thermostat phial from its clip (taking note of its position).
Working from the rear of the appliance remove both back panels.
Undo the 2 screws securing the thermostat bracket to the cabinet.
Undo the 2 screws securing the thermostat to the bracket.
Disconnect the wires (noting their position).
Withdraw the phial through its gland.
Re-assemble in reverse order.
Ensure that the thermostat phial is not kinked –has no sharp bends and is
correctly located in its holder.
Piezo Ignitor
In the lower chamber, undo the front 2 screws securing the lower hinged drop-
down panel.
Disconnect the ignitor lead.
Undo locknut and remove piezo ignitor.
Re-assemble in reverse order.
Float Valve
Remove both back panels.
Lift off the reservoir cover plate (secured by a single screw) and the inner cover.
Disconnect the water hose.
Undo the outer fixing nut and lift away, together with the ball float.
Re-assemble in reverse order.

IS468 ECN3639
14
COMPONENT REPLACEMENT (cont.)
Ball Float
Proceed as above.
Unscrew the ball float from the valve arm boss.
When replacing ensure that the same geometry is maintained.
Re-assemble in reverse order.
Lower Compartment Door
Open door and remove 2 screws securing top trim to chassis.
Lift door away, together with securing trim taking care not to lose door bushes.
Re-assemble in reverse order.
At this stage the door is reversible.
Upper Compartment Door
Open door.
Remove the two screws securing the upper hinge to the door, whilst taking the
weight of the door.
The door can be lifted away. Take care not to lose door bushes.
Re-attach the hinge to the door and remove the opposite hinge.
At this stage the door is reversible.
1 OF 1
REMOVE TWO SCREWS

IS468 ECN3639
15
SPARE PARTS LIST
Description
OG7502
OG7504
Shelf
SH116
SH126
Shelf Rack
SH117
SH118
Door Bush
BU72
Oven Burner
BU77
Check Valve
CV03
Float Valve
FL29
Ball Float
FL30
Ignitor Lead
IG18
Piezo Ignitor
IG35
Thermocouple Interrupter
IN08
Burner Injector (Natural)
JE153
Burner Injector (Propane)
JE98
Pilot Injector (Natural)
JE57
Pilot Injector (Propane)
JE56
Magnetic Catch
MC01
Pilot Burner
PI08
Door Seal
SE38
-
Door Seal (after 01/08/13)
-
SE42
Governor Spring (Propane)
SP65
Thermocouple
TC40
Thermopile
TC41
Safety Thermostat
TH109
Operating Thermostat
TH106
Valve
VA20

IS468 ECN3639
16
FAULT FINDING
Explanation of the Control System
The gas circuit in this Steamer is operated by two millivolt systems.
The first consists of an interrupted thermocouple, the pilot burner and the gas control.
Heat from the pilot flame acting on the thermocouple generates a 15-20mV electrical
potential.
This millivolt system connected to the gas control operates the first solenoid that allows gas
to the pilot burner. The over temperature stat is included in this system which operates via
the interrupted thermocouple.
The first solenoid operates as the safety device which shuts down in the event of a
thermocouple failure or if the over temperature stat goes open circuit.
The secondary millivolt system consists of a thermopile acting through the gas control via
the control thermostat.
Heat from the pilot flame acting on the thermopile generates a 500-700mV electrical
potential.
This millivolt system connected to the gas control operates the secondary solenoid that
passes gas to the main burners.
The system is interrupted by the control thermostat as it cycles, thereby opening and
closing the gas supply to the main burners.
The following trouble shooting flow charts are designed to give assistance on the most
probable cause of failure of the gas circuit.
Use the step by step instructions to quickly pinpoint problems and the advice to help in
taking the appropriate action to rectify them.
Piezo Ignitor not sparking
Is there a short in the High Tension
Lead.
Replace Electrode.
Yes.
If no spark is generated at all,
replace Piezo Ignitor.
No.
Has Electrode Insulator Fractured.
No
Yes.
Replace Lead.

IS468 ECN3639
17
Pilot burner will not light or stay lit
Main burner will not light
FAULT FINDING (cont.)
Are the thermocouple/Interrupter
connections secure.
Check supply.
Yes.
Is there gas at the pilot when
holding control knob in the
pilot position.
No.
Tighten connection.
No
Yes.
Very little.
Check overtemperature
stat for open circuit.
If all of the above are OK the
control valve may be faulty.
Check pilot jet for
blockage and clean where
necessary.
Check supply.
Check thermocouple
voltage (minium 15mV).
Is the gas control set to the on position.
No
Yes.
Check output (200-400mV) from
thermopile while the pilot is in
operation.
If reading is lower replace
thermopile.
No.
Set to on position and retry.
No
Yes.
Yes.
Has the limit stat
operated.
Replace thermostat
and retry.
Is there continuity
through thermostat.
Re-set limit stat and
retry
Are the
thermopile/thermocouple
connections correct and
tight.
Correct and retry.
No.
Yes.
Is the pilot flame
impinging on the
thermopile.
Yes.
No.
Rectify and retry.

IS468 ECN3639
18
FAULT FINDING (cont.)
Wiring Diagrams
11 11 11 11
1100 1100 700 700
GAS MILLIVOLT CIRCUIT
P-P P-P P-P P-P
56
7
8
VA20
TH73
TH77
IN08
B
B
BB
BB
B
B
THERMOPILE
WIRES
Fig. 7