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Technical data
Technical data R3501 - R3505
9
R3501 R3502 R3503 R3504 R3505
Nominal heat output at 80-60ºC max/min
kW 613/175 717/204 811/231 906/258 1000/285
Nominal heat output at 75-60ºC max/min
kW 613/175 717/204 812/231 907/258 1001/285
Nominal heat output at 40/30ºC max/min
kW 624/195 730/228 826/258 923/288 1018/319
Nominal heat input Hi max/min*
kW 653/187 764/218 865/247 966/276 1066/305
Efficiency at 80/60ºC
% 93.8
Efficiency at 40/30ºC
% 95.5
Annual efficiency (NNG 75/60ºC)
% 102.2
Annual efficiency (NNG 40/30ºC)
% -
Standstill losses (T
water
= 70ºC) % 0.3
Max. condensate flow
l/h -
Gas consumption H-gas max/min (10,9 kWh/m
3
) m
3
/h 59.9/17.1 70.1/20.0 79.4/22.7 88.6/25.3 97.8/27.9
Gas consumption L-gas max/min (8,34 kWh/m
3
) m
3
/h 78.3/22.4 91.6/26.2 103.7/29.6 115.8/33.1 127.8/36.5
Gas consumption LPG. max/min (12,8 kWh/kg)
kg/h 51.0/14.6 59.7/17.1 67.6/19.3 75.5/21.6 83.3/23.8
Gas pressure H-gas
mbar 20
Gas pressure L/LL-gas
mbar 25
Gas pressure LPG
mbar 30/50
Maximum gas pressure
mbar 100
Flue gas temperature at 80/60ºC max/min
ºC 155/65
Flue gas temperature at 40/30ºC max/min
ºC 120/55
Flue gas quantity max/min*
m
3
/h 1287/368 1505/430 1703/487 1901/543 2099/600
CO
2
level main burner natural gas H/E/L/LL max/min % 10.0/9.3
CO
2
level main burner liguid gas P max/min % 11.0/11.0
CO
2
level pilot burner natural gas H/E/L/LL max/min % 10.0/10.2
CO
2
level pilot burner liguid gas P max/min % 11.0/11.2
NOx level max/min
mg/kWh 11.5/19.5
CO level max/min
mg/kWh 27.3/6.5
Max. permissible flue resistance max/min
Pa 150
Water volume
l 53 70 75 80 85
Water pressure max/min
bar 8/1
Max. water temperature (High limit thermostat)
ºC 100
Maximum temperature setpoint
ºC 90
Nominal water flow at dT=20K
m
3
/h 26,4 30,8 34,9 39,0 43,0
Hydraulic resistance at nominal water flow
kPa 37 25 30 35 40
Electrical connection
V 400
Frequency
Hz 50
Mains connection fuse
A 16 20
IP class
- IP20
Power consumption boiler max/min (excl. pump)
W 900 1270
Power consumption 3-step pump (optional)
W
Power consumption speed controlled pump (optional)
W 394 375 523 557 708
Weight (empty)
kg 740 840 950 1070 1200
Noise level at 1 meter distance dB(A) 64
Ionisation current minimum µA 6
PH value condensate - 3.2
CE certification code - CE-0063AR3514
Water connections
- DN65 PN16 DN80 PN16
Gas connection - R 2” DN65 PN16
Flue gas connection
mm 300 350 400
Air intake connection (for room sealed use)
mm 250 300 355
Condensate connection
mm 40
960 1000 1020 1400 1500
11


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