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11/07/00
Thermocouple circuit
Principle circuit
1.7 TECHNICAL DATA
1.8 ELECTRICAL DIAGRAM
KEY:
PRINCIPLE CIRCUIT
I ON/OFF Switch
TR Water temperature thermostat
TS Flue gas safety thermostat
S Max. water temperature light
VG Double gas electrovalve
THERMOCOUPLE CIRCUIT
TA High limit thermostat
TC Flame detection thermocouple
MODEL
220-34
300-44
400-44
STORAGE CAPACITY
litre
220
300
400
NOMINAL INPUT
Kcal/h
29.420
37.840
37.840
KW
34,0
44,0
44,0
NOMINAL OUTPUT
Kcal/h
25.880
33.530
34.590
KW
30,1
39,0
40,2
COMBUSTION EFFICIENCY
%
88.5
88.6
91.4
WATER EFFICIENCY
%
845
84.2
86.5
TIME TO RECOVER AT 40°C (inlet cold water 15°C)
min
13
14
18
CONTIN. OUTPUT AT 40°C (inlet cold water 15°C)
lt/hr
988
1.274
1.309
INJECTORS - PRINCIPAL BURNER
N°
4
4
4
GAS INPUT RATE G20 20 mbar (NATURAL GAS)
m3/h
3,60
4,65
4,65
INJECTOR DIAMETER
mm
2,60
3,00
3,00
INJECTOR PRESSURE
mbar
10,5
10,5
10,5
GAS INPUT RATE G30/31 29 mbar (LPG)
kg/h
2,68
3,46
3,46
INJECTOR DIAMETER
mm
1,50
1,75
1,75
INJECTOR PRESSURE WITH G30 (BUTANE)
mbar
28,0
28,0
28,0
INJECTOR PRESSURE WITH G31 (PROPANE)
mbar
36,0
36,0
36,0
PILOT BURNER INJECTOR DIAMETER (G20)
PILOT BURNER GAS RATE (G20)
mm
W
0,40
190
0,40
190
0,40
190
PILOT BURNER INJECTOR DIAMETER (G30/31)
PILOT BURNER GAS RATE (G30/31)
mm
W
0,21
142
0,21
142
0,21
142
VOLTAGE SUPPLY
volts
220-240
220-240
220-240
FREQUENCY SUPPLY
Hz
50
50
50
TOTAL POWER CONSUMPTION
w
7
7
7
MAX WATER PRESSURE
bar
6
6
6
WEIGHT
kg
160
202
243