Dean D50 Series, Installation, Operation & Maintenance Manual

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3.7 ADJUSTMENTS / ADAPTATION
TO DIFFERENT GASES:
a. Proper operation of appliances
requires operator to scrupulously
respect the following adjustments in
terms of:
1. gas inputs and pressures, air
adjustment;
2. voltage and polarities of electrical
power supply.
b. Dean gas fryers are manufactured to
use the type of gas and pressure
specified on the rating plate. When
changing gas,
adaptation must be
performed by qualified personnel.
Failure to use qualified personnel will
void the Dean warranty.
3.8 GAS INPUTS:
a. Nominal Qn Heat Input is:
D50G: 20 kW.
D60G: 25 kW.
b. Inputs for different gases are as follows:
D50G D60G
G20
Natural Gas
(Type H)
20 mbar: 2,11 m
3
/ hr. 20 mbar: 2,64 m
3
/ hr.
G25
Natural Gas
(Type L)
25 mbar: 2,46 m
3
/ hr. 25 mbar: 3,07 m
3
/ hr.
G31
Propane 37 mbar: 1,55 kg / hr. 37 mbar: 1,93 kg / hr.
G31 Propane 50 mbar: 1,55 kg / hr. 50 mbar: 1,93 kg / hr.
3.9 CHART: ADJUSTMENT TO DIFFERENT GASES
GASES AND PRESSURES
SUPPLY (1) G20
20 mbar
G25
25 mbar
G31
37 mbar
Diameter and markings of
injectors
1,90 mm 1,90 mm 1,28 mm
Burner
"blue" marking "blue" marking "red" marking
Pilot TJ024 TJ024
TJ013
"red"
(2) Gas pressure at the
regulator (mbar)
12,0 17,5 2,2
NOTE: Outlet gas pressure must be controlled with precision 5 to 10 minutes after appliance is
operating.
(1) – (2): For controls and adjustments, please refer to "gas valve" illustration.
(Pilot : adjustment of flame’s volume may be achieved by acting on the screw that is mounted on the
gas valve).