Firebird Enviromax Condensing Range
3
17
3.2 - KITCHEN
Boiler Model C20/26 C35 C44/58 C73
Max Heat Output Kw 20/26 35 44 / 58 73
Btu/h (‘000) 68/89 119 150 / 198 249
CONNECTIONS
Heating Flow 1”Bsp. 1”Bsp. 1
1
/
2
”Bsp 1
1
/
2
”Bsp.
Heating Return 1”Bsp. 1”Bsp. 1
1
/
2
”Bsp. 1
1
/
2
”Bsp.
Drain Off Cock
1
/
2
” Bsp.
1
/
2
” Bsp.
1
/
2
” Bsp.
1
/
2
” Bsp.
Condense Drain Off Connection. 22 mm PLASTIC 22 mm PLASTIC 22 mm PLASTIC 22 mm PLASTIC
WATER CONTENT
Water Content Boiler 24 24 43.5 54
FLUE (Indoor Boilers) Concentric Flue
Balanced Flue Assembly
(mm) 125 (5”) 125 (5”) 155 (6”) 170 (7”)
Conventional flue Socket. (mm) 130 id. 130 id. 155 id. 170 id.
Flue Draught Reqd.(Min WG.) 0.040” 0.040” 0.040” 0.040”
Conventional Flue
(Max WG.) 0.15” 0.15” 0.15” 0.15”
MAINS WATER SUPPLY Limescale excess:When over 150/200 ppm.Fit appropriate scale reducer.
Pressure Max 10 bar max (Fit pressure reducing valve as necessary)
Min 1 bar min. For user Comfort reduce pressure at tap to between 1 and 5 Bar.
TEMPERATURE CONTROL
Boiler Central Heating Control 60˚C - 80˚C +- 3˚C Boiler Safety Limit 110˚C +- 3˚C
HEATING SYSTEM (SEALED) Fit in accordance with BS 7074 Part 1,BS 5449,OFTEC Standards,etc
Boiler Test Pressure 4.5 Bar Safety Valve Operating Pressure 3 Bar
WATER SIDE RESISTANCE
Flow Rate To Give A Nominal Output At 10k Differential Flow Rate To Give A Nominal Output At 20k Differential
Flow Rate Measured
(Kg h
-1
) 2874.24 Flow Rate Measured(Kg h
-1
) 1522.92
Waterside Resistance (mbar) 0.18 Waterside Resistance (mbar) 0.19
Pressure Jet Oil Burners RIELLO RDB 2.2 up to C35 & RIELLO RDB 4.2 up to C58 - C73
Fuel C2 Kerosene
Electrical Supply 230v.AC 50Hz To be fused at 5amp.
Copper Pipe Not Plastic to be used for a minimum of 1 metre off the boiler
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