Falcon G3425 User guide

G3425, G3625, G3925,
G31225 and G31525 Chargrills
INSTALLATION and SERVICING
INSTRUCTIONS
The appliance must be installed and serviced by a qualified person as stipulated by the Gas
Safety (Installation & Use) Regulations.
IMPORTANT
The installer must ensure that the installation of the appliance is in conformity with these instructions and
National Regulations in force at the time of installation. Particular attention MUST be paid to:
Gas Safety (Installation & Use) Regulations
Detailed recommendations are contained in
Institute of Gas Engineers published documents:
IGE/UP1,IGE/UP/2
BS6173 and BS5440
Health And Safety At Work etc. Act
Local and National Building Regulations
Fire Precautions Act
These appliances have been UKCA/CE-marked based on compliance with the Gas Appliance
Regulations/Product Safety and Metrology Regulations for the Countries, Gas Types and Pressures as
stated on the data plate.
WARNING: TO PREVENT SHOCKS, ALL APPLIANCES WHETHER GAS OR ELECTRIC, MUST BE
EARTHED.
On completion of the installation, these instructions should be left with the Engineer-in-Charge for reference
during servicing. Further to this, The Users Instructions should be handed over to the User, having had a
demonstration of the operation and cleaning of the Appliance.
IT IS MOST IMPORTANT THAT THESE INSTRUCTIONS BE CONSULTED BEFORE INSTALLING AND
COMMISSIONING THIS APPLIANCE. FAILURE TO COMPLY WITH THE SPECIFIED PROCEDURES
MAY RESULT IN DAMAGE OR THE NEED FOR A SERVICE CALL.
PREVENTATIVE MAINTENANCE CONTRACT
To obtain maximum performance from this unit regular servicing of the appliance should be undertaken to
ensure correct operation, it is functioning as intended, and safe to use. We recommend servicing in
accordance with SFG20 Maintenance Schedules and as a minimum, after 2,500 hours of use, or annually,
whichever comes first and that a maintenance contract be arranged with an appointed service contact. Visits
may then be made at agreed intervals to carry out adjustments and repairs.
WEEE Directive Registration No. WEE/DC0059TT/PRO
At end of unit life, dispose of appliance and any replacement
parts in a safe manner, via a licensed waste handler.
Units are designed to be dismantled easily and recycling
of all material is encouraged whenever practicable.
Falcon Foodservice Equipment
HEAD OFFICE AND WORKS
Wallace View, Hillfoots Road, Stirling. FK9 5PY. Scotland.
Phone: [phone]
T100766 Ref. 10

SECTION 1 - INSTALLATION
UNLESS OTHERWISE STATED, PARTS WHICH HAVE BEEN PROTECTED BY THE MANUFACTURER ARE
NOT TO BEADJUSTED BY THE INSTALLER.
1.1 MODEL NUMBERS, NETT WEIGHTS andDIMENSIONS
Model
Width
mm)
Depth
(mm)
Height
(mm)
Weight
(kg)
G3425 Chargrill
400
770
455
83
G3625 Chargrill
600
770
455
143
G3925 Chargrill
900
770
455
205
G31225 Chargrill
1200
770
455
286
G31525 Chargrill
1500
770
455
348
1.2 SITING
The unit may be installed on a non combustible table, counter top or purpose designed floor
stand, available from Falcon. The unit must be installed on a firm, level surface in a well lit, suitably
ventilated position.
Appliances with castors must be installed in such a manner that takes into account manipulation and
the restrictions on site.
Models may be installed to within 175mm of a combustible wall at the back and sides.
Important
If a unit requires to be installed in suite formation with matching appliances, the instructions for all
units must be consulted to determine necessary clearance to any combustible rear wall or overlying
surface. Some models require greater clearance than others and the largest figure quoted in any
individual instruction will therefore determine the clearance for a complete suite of adjoining
appliances.
1.3 VENTILATION
Adequate ventilation must be provided to supply sufficient fresh air for combustion, to prevent the
occurrence of unacceptable concentrations of substances harmful to health in the room in which they
are installed, and allow easy removal of combustion products which may be harmful to health.
Recommendations for Ventilation of CateringAppliances are given in BS5440:2.
The fresh air requirement for this appliance is a rate of 3m³/hr per kW.
For multiple installations the requirements should be added together. Installation should be made
in accordance with local and/or national regulations that apply at the time. A competent qualified
installer must be employed.
The appliance flue discharges vertically at the rear. There must be no direct connection of the flue to
outside air or to a mechanical extraction system. Standing the appliance below a ventilated canopy is
the most suitable arrangement.
Care must be taken not to disturb the air for combustion admission and evacuation of products of
combustion on appliances fitted with open burners.
1.4 GAS SUPPLY
The incoming service must be of sufficient size to supply full heat input without excessive pressure
drop. A gas meter will be installed in the system by the gas supplier.Alternatively, if an existing meter
is to be utilised, this should be checked preferably by supplier to ensure that it will deal with the rate of
gas supply required.
This is particularly important when a number of units are being installed in a suite.
Installation pipework should be fitted in accordance with IGE/UP/2. The pipe size from meter to unit
must not be less than that of inlet connection, R¾ (¾" BSP male).
An isolating cock must be located close to the unit to facilitate shut-down during emergency or
routine servicing. The cock must be easily accessible to user. The installation must be tested for
gas tightness; details are given in IGE/UP/1.

If flexible tube is used, the gas supply tubing or hose shall comply with national requirements in force.
The flexible hose or tubing must not exceed 1.5M in length.
These will be periodically examined and replaced as necessary.
The adjustable governor supplied must be fitted to Natural Gas models only.
1.5 TOTAL HEAT INPUTS and PRESSURE ADJUSTMENT
Two burners at maximum position.
Adjustment pressure at test point on gas tap manifold should be 15mbar. (13.5mbar for G3625).
1.5.1 Burner Injector Sizes - Natural Gas I2H (20) (in mm)
Model/ No. of burners
1
2
3
4
5
G3425 Chargrill
Ø3.0
-
-
-
-
G3625 Chargrill
Ø2.5
Ø2.4
-
-
-
G3925 Chargrill
Ø2.6
Ø2.6
Ø2.6
-
-
G31225 Chargrill
Ø2.6
Ø2.6
Ø2.4
Ø2.5
-
G31525 Chargrill
Ø2.6
Ø2.4
Ø2.3
Ø2.4
Ø2.4
1.5.2 Burner Injector Sizes - Propane Gas I3P (37)(Amal Jet)
Model/ No. of burners
1
2
3
4
5
G3425 Chargrill
400
-
-
-
-
G3625 Chargrill
300
250
-
-
-
G3925 Chargrill
300
300
300
-
-
G31225 Chargrill
300
300
300
300
-
G31525 Chargrill
260
260
260
260
260
1.5.3 PILOT INJECTOR SIZES and Heat Input
(Natural I2H (20) and Propane I3P (37))
Gas type
Injector
Heat Output
Natural Gas
Polidoro G31.2
0.2kw
Propane Gas
Polidoro G25.1
0.2kw
1.6 HEAT INPUTS (Natural I2H (20)
Model
kW (net)
Btu/hr (gross)
M³/Hr
G3425
10.8
40,546
1.13
G3625
15
56320
1.57
G3925
26.3
98,737
2.75
G31225
31.8
119,386
3.32
G31525
37.2
139,659
3.88
HEAT INPUTS (Propane I3P (37)
Model
kW (net)
Btu/hr (gross)
M³/Hr
Kg/hr
G3425
10.8
40,546
0.43
0.84
G3625
15
56,320
0.60
1.16
G3925
26.3
98,737
1.05
2.04
G31225
31.8
119,386
1.27
2.47
G31525
37.2
139,659
1.48
2.9

1.61 Reduced Heat Inputs (Natural I2H (20)
Model
Burner Position Left to Right
1 (kW)
2 (kW)
3(kW)
4(kW)
5(kW)
G3425
7.56
G3625
5.62
5.11
G3925
6.19
6.19
6.19
G31225
6.19
6.19
5.11
5.62
G31525
6.19
5.11
4.68
5.11
5.11
1.61 Reduced Heat Inputs (Propane I3P (37)
Model
Burner Position Left to Right
1 (kW)
2 (kW)
3(kW)
4(kW)
5(kW)
G3425
7.78
G3625
6.18
5.16
G3925
6.18
6.18
6.18
G31225
6.18
6.18
6.18
6.18
G31525
5.36
5.36
5.36
5.36
5.36
1.7 SUPPLY PRESSURE (Natural I2H (20) and Propane I3P(37)Gas)
Model
Natural
Propane
All models
20
37
Burner pressure test point is located at appliance back panel upon gas valve manifold.
An adjustable governor (¾" BSP) is provided on Natural Gas units.
Governor Adjustment Pressure;
Gas type
mbar
inches w.g
Natural Gas I2H (20)
15
6
Natural Gas G3625, both burners on
13.5
5.4
Propane Gas I 3 P (37)
37
14.8
1.8 BURNER ADJUSTMENTS Burner Aeration
Burners are fitted with fixed injectors.Adjustable aeration is provided by means of a burner inlet shroud.
TypicalAeration
Natural Gas I2H (20) - Fully open
Propane Gas I3P(37)- 10mm gap
Figure 1

SECTION 2 - ASSEMBLYand COMMISSIONING
Note : Take care when removing cast iron components as they are heavy items
Grid Bar –7kg
Radiants –6kg
Burners –7kg
2.1 ASSEMBLY
2.1.1 Unpacking
Remove all packing material etc. and ensure burners are correctly located over injectors and at rear.
2.1.2 Positioning
Place unit in position and level using feet adjusters. To mount upon floor-stand, refer to details
supplied with stand. The unit is now ready for connection to gas supply.
Appliances with castors must be installed in such a manner that takes into account manipulation and
the restrictions on site.
2.2 CONNECTION TO THE GAS SUPPLY
With unit in position (see Section 1.2) connect to gas supply in accordance with Section 1.4. For
Natural Gas application, governor supplied must be fitted, adequately supported and positioned
accessibly to facilitate adjustment. (Never fit a governor to a Propane appliance). Purge installation
and check gas tightness see IGE/UP/1.
2.3 PRE-COMMISSIONINGCHECK
2.3.1 Setting the Natural Gas Pressure
Connect a suitable gauge to pressure test point located at unit back at RH side.
Light burners in accordance with procedure detailed in Section 2.4 of User Instructions.
Governor
On Natural gas units, adjust governor to produce required pressure. To achieve this, remove cap to
access adjustment screw and turn screw clockwise to increase pressure or vice-versa. Replace cap
when correct pressure has been established.
For all models (except G3625)*, burner pressure setting at test point with two burners on should be
15mB.
* (G3625 - Governor Setting is 13.5mbars with both burners running.)
2.3.2 Aeration Setting
Observe burner flames through inspection aperture and window. If adjustment is necessary, lift away
branding irons and radiants to access aeration adjustment cover. Having achieved optimum
performance, lock screw to secure cover in position.
Flame cones shall be stable and display good burner cross-lighting on both LOW and HIGH
settings. There should be no yellow tipping or flame lift.
Burner aeration has been set by Falcon and should not be altered unless absolutely necessary.
2.3.3 Gas Tightness
IMPORTANT: After installation, the engineer responsible should check that all
connections are gas tight and ensure satisfactory operation of unit before leaving the
premises.
2.4 INSTRUCTION TO USER
After installing and commissioning unit, hand User Instructions to user or purchaser, and ensure
that person(s) responsible understand how to light, clean and operate appliance. It is important to
ensure that the gas isolating cock location is made known to User, and procedure for operation in
an emergency be demonstrated.
I n s t r u c t User that unit and installation should be SERVICED and INSPECTED REGULARLY
as recommended by Falcon.
For continued safe and efficient operation, the U s e r should be made aware that any smell
emitting from the new appliance will quickly disappear.

SECTION 3 - SERVICING and CONVERSION
SERVICE INFORMATION
This unit carries an extensive mainland UK warranty. The warranty is in addition to and does not
change your statutory or legal rights.
The warranty policy can be found on our website which details the conditions of the warranty and the
exclusions.
https://www.falconfoodservice.com/info-centre/policy
Service calls to equipment under warranty will be carried out in accordance with the conditions of
sale.
Warranty calls can be made between 8:30 am and 5:00 pm weekdays only.
To ensure your warranty enquiry is handled as efficiently as possible, ensure you have the following
appliance information prior to calling us:
1. Model number –found on data plate
2. Serial number –found on data plate
3. Brief description of the issue
To contact Falcon for a warranty issue dial (UK only) 01786 455 200 and select Warranty
Issues from the menu.
IMPORTANT: TURN OFF GAS AT ISOLATING COCK and remove branding irons and
radiants Before carrying out any inspection, servicing or exchange of components.
After carrying out any servicing or exchange of gas carrying components - ALWAYS
CHECK FOR GAS TIGHTNESS!
When re-assembling, replace parts in reverse order to dismantling unless instructed otherwise.
3.1 CONVERSION TO OTHER GASES.
When converting between NATURAL and PROPANE gas, carry out the following:-
a) Change main injectors and pilot injectors to suit gas type (Refer to Sections 1.5.3 and 3.4).
b) Change gas valve (Refer to Section 3.6).
c) Remove governor when converting to PROPANE GAS. Fit governor when converting to NATURAL
GAS.
d) Check pressure settings (Refer to Sections 1.7 and 2.3.1).
e) Adjust burner aeration (Refer to Section 1.8).
f) Set low flame. Refer to Section 3.6 (m - q).
g) Check gas tightness.
h) Fit replacement label for appropriate gas.
3.2 REMOVAL OF CONTROL PANEL
Upper and lower panels are secured together. Remove jug and control knobs. Undo fixings on
underside of lower panel and top side of upper panel.
Remove top fixings from upper panel face. Disconnect spark igniter leads.

3.3 BURNERS
3.3.1 Main Burner
To access burners, lift away branding bars and remove cast radiants. Burners should be cleaned
periodically to maintain maximum performance.
Remove burner by raising rear slightly, and push back to clear injector.
Clean burner with a damp cloth. Burner ports should be cleared with a suitable metal broach. Shake
debris clear or blow it away with compressed air. When replacing, ensure rear pins are located
correctly. Check aeration adjustment. Refer to Sections 1.8 and 2.3.2
3.3.2 Pilot Assembly
Toremove, proceed as follows:-
a) Remove front facia panels as detailed in Section 3.2. Undo thermocouple securing nut and pull
copper capillary gently until thermocouple is completely removed.
b) Undo electrode.
c) Release tubing nut from pilot gas pipe. Take care not to lose injector removed with nut.
d) Undo fixings securing pilot assembly and remove complete assembly. Replace in reverse
order.
3.4 INJECTORS
To access, remove burners as detailed in Section 3.3.1. Undo injectors using a spanner. Soak in a
suitable solvent to remove debris and wipe with a soft rag.
DO NOT USE metal implements to clear an injector orifice. Check seals are clean before refitting
and that this is carried out in the correct order. Refer to Section 1.6.
After replacement, check that burner performance is in accordance with Sections 1.8 and 2.3.2.
3.5 THERMOCOUPLE
Toremove, proceed as follows -
a) Remove control panels as detailed in Section 3.2.
b) Undo tubing nuts at pilot assembly and gas control.
c) Manoeuvre thermocouple clear.
d) Replace in reverse order.
When replacing a thermocouple, coil excess in a similar manner to original, and take care not to
bend capillary sleeve to less than 12mm radius.
Take care not to over tighten at valve connection.
3.6 GAS Control Tap.
Toaccess gas control tap, remove control panel assembly as detailed in Section 3.2.
Toremove a gas control tap, proceed as follows:-
a) Undo nut that secures burner feed pipe to control.
b) Undo pilot tubing nut. (alternatively, easier accessed once tap is removed from float rail, taking care
not to strain flexi pipe)
c) Remove fixings that secure control to float rail.
d) Manoeuvre control to enable thermocouple removal.
e) Withdraw control.
Important: When replacing a control, ensure sealing gasket is in a serviceable
condition, and check gas tightness.
Set/check LOW FLAME as detailed in m) - q) below.

3.6.1 Tap Lubricating and Cleaning.
Toclean and lubricate a tap, proceed as follows:-
Plugs and bodies are machined in pairs and parts are not interchangeable. Always clean one tap at
a time.
f) Remove fixings which retain front securing plate whilst holding plate against internal spring pressure.
g) Carefully withdraw plate with operating spindle.
h) Withdraw exposed rod, spring, brass washer and sealing washer. Take care not to lose any of
these small parts.
k) Withdraw plug and clean with a soft rag at the same time as control body mating. Ensure grease
does not block plug hole or tap body holes - this will affect gas flow. Regrease plug sparingly with
an approved heat resistant grease. Re-assemble strictly in reverse order and take care with central
pin assembly. i.e. fit pin spring first followed by brass washer and sealing washer. When
inserting into plug, ensure sealing washer locates snugly in recess at plug hole bottom.
When re-assembling operating spindle, the niting pin should engage within plug slot. When
replacing control, ensure sealing gasket is in serviceable condition and check gas tightness. Take
care not to bend thermocouple capillary to less than 12mm radius.
m) LOW FLAME setting can be adjusted by means of a screw on control front (refer to Figure 2). If
necessary, adjust flame by following procedure:-
n) Turn adjusting screw fully anti-clockwise.
p) Light burner and turn to LOW setting.
q) Observe flame and if necessary turn screw very slightly to obtain a satisfactory condition. Turn
anticlockwise to increase flame and vice-versa. Aim to achieve 80% of maximum flame. On
multiple burner units, all burners must be adjusted in a similar fashion. Check basic flame
stability and that cross-lighting at low flow is satisfactory.
3.7 GOVERNOR
This applies to NATURAL GAS models ONLY.
The type of governor supplied is maintenance free. Check that blue dust cap covering vent is
fitted and in good condition as this protects the breather hole.
When fitting governor, ensure that direction arrow points toward unit inlet.
3.8 SPARK IGNITER
To access connections, open control panel assembly as detailed in
Section 3.2.
Toremove and replace:-
a) Disconnect igniter lead at rear of igniter.
b) Undo panel securing nut and remove igniter.
c) Replace in reverse order.
3.9 ELECTRODE
To access pilot, remove control panel assembly as detailed in
Section 3.2.
Toremove and replace:-
a) Disconnect igniter lead at electrode end.
b) Undo pilot assembly nut and remove electrode.
c) Replace in reverse order.
SECTION 4 - SPARES
When ordering spares, quote the unit type and serial number. This information will be found on data
plate located at rear of unit.
An identity label is also provided on front frame.