Installation manual

54
16 Technical data
Boiler type C13, C33, C53
Description Unit ISOTWIN CONDENS F 35 E
Gas category ll
2H3P
Heating
Heating output at 80°C/60°C (P) kW 7.6
- 28
Efficiency calculated on net calorific value at
80/60°C
% 95.8
- 97.8
Heating output at 50°C/30°C (P) kW 8.6
- 30.6
Efficiency calculated on net calorific value at
50/30°C
% 107
Minimum
calorific flow rate (Q min) kW 8
Maximum
calorific flow rate (Q max) kW 28.6
Heating
minimum flow rate l/h 500
Maximum
heating temperature C° 80
Minimum
heating temperature C° 22
Expansion
vessel, useful capacity l 12
Expansion
tank initial pressure bar 0.75
Maximum
system capacity at 75°C l 240
Safety
valve, maximum service pressure (PMS) bar 3
Domestic
hot water
Heating output (P) kW 7.6
- 33.2
Minimum calorific flow rate (Q min) kW 8
Maximum
calorific flow rate (Q max) kW 34.2
Minimum
hot water temperature °C 38
Maximum
hot water temperature °C 63
Specific
flow rate (D) (ΔT 30°C) l/min 21
Threshold
flow rate l/min 0
DHW
storage vessel l 42
DHW
storage vessel heat up time min 6
T
ime to reheat 70% of the storage to 60°C min 4
Maximum
supply pressure bar 16
T
emp./pressure relief valve operating pressure bar 7
T
emp./pressure relief valve operating temperature °C 90
Cold
water flow rate regulator l/min 16
Safety
valve, maximum service pressure bar 10
Minimum
operating pressure bar 0.7
Maximum
operating pressure bar 10