Wall boiler ANNA-NOVA
Wall boiler ANNA-NOVA
Gas double-circuit wall boiler "Anna nova" is intended for heating and hot water supply of municipal residential buildings and constructions.
We produce three versions of boilers "Anna-nova" constructively:
OK (with open combustion chamber and exhaust emission into the flue),
ZK (with closed combustion chamber and forced draft and exhaust emission through combined air duct/flue, which are two coaxial located pipes in outside wall of the heated building. The air for burning is suppled by one of these pipes, combustion products are emited by another.
"ZK-comfort" (such as ZK, but with the additional recuperator - condensation heat exchanger of "gas-water" type, in which the heat carrier from the return line of heating system takes the heat of leaving smoke fumes that is raised the efficiency and gives possibility to work in the condensation mode).
|Name||Units of measure||Values for "Anna-nova":|
|24 OK||24 ZK||24 ZK comfort||28 ZK||30 ZK comfort|
|Nominal heat power, ±5%||kW||27||27||25||31||31|
|Nominal heat productivity in 80/60 °C mode, ±5%||kW||24,3||28,2||30|
|Nominal heat productivity in 50/30 °C mode, ±5%||kW||-||26,9||-||33,3|
|Nominal gas pressure||Pa||1960|
|Nominal gas flow rate when t=20°C, atm.p. 760 mm m.c., Qn.r.=8000 kcal/m3||m3/hour||2,9||2,68||3,33|
|Coefficient of efficiency in 80/60°C mode, not less||%||92,0||97,2||92,0||97,0|
|Coefficient of efficiency in 50/30 °C mode, not less||%||-||107||-||107|
|Working pressure of the heat carrier, not more||MPa||0,3|
|Heat carrier temperature, not more||°C||85|
|Heta carrier temperature range on the boiler outlet, from - to||°C||35 - 80|
|Water flow rate for hot water production when t=35°C, ±5%||l/min||10||12|
|Water temperature range in the HWS system, from - to||°C||30 - 60|
|Maximal pressure in HWS system||ÌPa||0,6|
|Temperature of the combustion products on the outlet of the boiler, not less||°C||115||65||130||72|
|Electrical power, ±10%||W||90||120||150|
|Power supply data (voltage/frequency)||V/Hz||220/50|
|Overall dimensions (not more):|
|mass, not more||kg||33||33||33||43||47|
OK - open combustion chamber
ZK - closed combustion chamber
HWS - hot water supply
Overall dimensions are without combined flue size in ZK performance.