8
Rev. 12GB0712
SYSTEMA S.p.A.
AIRTIGHT GAS CONVECTORS
2.5 Pilot flame series technical
characteristics
THERMOSTAT CHARACTERISTICS
Electrical power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240 V 20 A
Work range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6° ÷ 30°C
Max. bulb temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42°C
Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .copper
Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .copper
f) Daily or weekly programmer (only on request): this
serves to program the device’s daily and weekly
operation cycles and is positioned on the control
e) Adjustment thermostat: this is a sensor-type ther-
mostat that permits the temperature to be adjusted
as required by the user for a comfortable room tem-
perature, and also permits the control of the starting
and switching off of the device from the control unit.
panel for access by the user for adjustment purpo-
ses.
TECHNICAL SPECIFICATIONS OF AIRTIGHT GAS CONVECTORS
PILOT FLAME THERMOCOUPLE SERIES MODELS
NON-VENTILATED
VENTILATED
K21 K28 K40 K55 K28V K40V K55V
RATED HEAT FLOW
kW 2 2,5 4 4,6 2,5 4 4,6
kcal/h 1720 2150 3440 3960 2150 3440 3960
WORKING HEAT OUTPUT
kW 1,8 2,2 3,5 4,1 2,2 3,6 4,1
kcal/h 1550 1900 3010 3530 1900 3100 3530
COMBUSTION EFFICIENCY
% 90,0 87,0 87,3 87,5 87,5 88,0 88,0
CATEGORY EFFICIENCY
1 1 1 1 1 1 1
INJECTOR PRESSURE
(power supply=20mbar)
Methane G20
mbar 13,2 12,0 12,5 14,0 12,0 12,5 14,0
INJECTOR PRESSURE
(power supply=25mbar)
Gas L - G25
mbar
-
INJECTOR PRESSURE
(power supply=29mbar)
GPL Butane - G30
mbar 28.9 28.8 28.9 29.0 28.8 28.9 29.0
INJECTOR PRESSURE
(power supply=37mbar)
GPL Propane - G31
mbar 36.6 36.8 36.7 36.5 36.6 36.7 36.5
BURNER INJECTOR DIA-
METER
Methane G20
mm 1,25 1,45 1,90 1,90 1,45 1,90 1,90
Gas L - G25
mm 1.25 1.45 1.90 1.90 1.45 1.90 1.90
GPL Butane - G30
mm 0.75 0.85 1.05 1.10 0.85 1.05 1.10
GPL Propane - G31
mm 0,75 0,85 1,05 1,10 0,85 1,05 1,10
MAX FUEL
CONSUMPTION
(0°C - 1013 mbar)
Methane G20
m
3
0,21 0,26 0,42 0,49 0,26 0,42 0,49
Gas L - G25
m
3
0.25 0.31 0.49 0.57 0.31 0.49 0.57
GPL Butane - G30
kg/h 0.158 0.197 0.315 0.363 0.197 0.315 0.363
GPL Propane - G31
kg/h 0,155 0,194 0,311 0,357 0,194 0,311 0,357
ELECTRICAL POWER SUPPLY
V -- -- -- -- 230 230 230
Hz -- -- -- -- 50 50 50
ELECTRICAL POWER (absorbed)
W -- -- -- -- 25 30 30
TREATED AMBIENT AIR FLOW
m
3
/h -- -- -- -- 150 240 270
HEATED AMBIENT VOLUME
m
3
36 44 70 82 48 78 88
FAN SPEED NUMBER
-- -- -- -- 2 2 2
OVERALL DIMENSIONS
Width
mm 420 420 560 560 420 560 560
Height
mm 615 615 615 615 615 615 615
Depth
mm 225 225 225 225 225 225 225
WEIGHT
kg 31 31 45 45 32 46 46
GAS FITTING DIAMETER
inc. (”) 1/2"- M 1/2"- M 1/2"- M 1/2"- M 1/2"- M 1/2"- M 1/2"- M
AIR-FUME COAXIAL
PIPE DIAMETERS
Air
mm 120 120 160 160 120 160 160
Fumes
mm 90 90 90 90 90 90 90
AIR-FUME MAX LENGHT
coaxial pipes
mm 500 500 500 500 500 500 500
TYPE OF EQUIPMENT
C11
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