FireBird Enviromax Systems C20 User Manual

Boiler Model C20 + C26 C35 C44
Heat Output kW 15-20/20-26 26-35 35-44
Max. BTU/h (‘000) 50-90 90-120 120-150
CONNECTIONS
Heating Flow 22 mm dia. 28 mm dia. 1
1
/
2
” BSP
Heating Return 1” BSP 1” BSP 1
1
/
2
” BSP
Mains Cold Feed (Copper) 15 mm dia. 15 mm dia. 15 mm dia.
Hot Water Delivery (Copper) - - -
Drain Off Valve
1
/
2
” BSP
1
/
2
” BSP
1
/
2
” BSP
Safety Pressure Valve Outlet (Copper) 15 mm dia. 15 mm dia. 15 mm dia.
Condensate Trap 22 mm dia. plastic 22 mm dia. plastic 22 mm dia. plastic
CIRCULATING PUMP 25/60 25/60 25/80
Integral Expansion Vessel Normal Capacity 12 litres 12 litres 18 litres
Expansion Vessel Pre-charge Pressure 1 bar 1 bar 1 bar
Low Pressure Water Switch?   
Filling Loop Included?   
WATER CONTENT
Boiler 24 litres 24 litres 45 litres
Primary Tank -- -
FLUE (Indoor Boilers)
Balanced Flue Assembly 125 (5”) mm dia. 125 (5”) mm dia. 150 (6”) mm dia.
Conventional Flue Assembly 80 id. mm dia. 80 id. mm dia. 100 id. mm dia.
Max. Low Level Flue Length 1.5m 1.5m 1.5m
Max. High Level Flue Length 6m 6m 6m
Max. Vertical Level Flue Length 6m 6m 6m
HEATING SYSTEM (SEALED) Fit in accordance with BS 7074 Part 1, BS 5449, OFTEC standards and all other relevant legislation.
Max. Operating Pressure 2.5 bar
Max. System Pressure Cold 1.5 bar
Min. System Pressure Cold 0.5 bar
Preset Pressure Relief Valve 3 bar
MAINS WATER SUPPLY PRESSURE Min. 1 bar - Max. 10 bar (for user comfort, we recommend pressure at tap to be between 2 and 5 bar).
Limescale excess:When over 150/200 ppm, fit appropriate scale reducer.
WATER SIDE RESISTANCE 20kW 26kW 35kW
Flow Rate To Give A Nominal Output At 10K Differential
Flow Rate Measured 1642 kg/h 2135 kg/h 2874 kg/h
Waterside Resistance 0.18 mbar 0.18 mbar 0.18 mbar
Flow Rate To Give A Nominal Output At 20K Differential
Flow Rate Measured 870 kg/h 1131 kg/h 1523 kg/h
Waterside Resistance 0.19 mbar 0.19 mbar 0.19 mbar
PRESSURE JET OIL BURNERS Riello RDB 2.2R
FUEL Diesel 35 Second Gas Oil
ELECTRICAL SUPPLY 230V AC 50Hz 5A
TEMPERATURE CONTROL
Boiler Central Heating Control 60˚C - 80˚C
Boiler Safety Limit 110˚C
Over-run - Fixed 87˚C
2
3
2.1 TECHNICAL SPECIFICATIONS - SYSTEM BOILER
Model Output Weight Dimensions(mm)
Enviromax kW kg H W D A B C E F G I J
System C20 15-20 143 847 442 610 753 - 157 94 124 - 336 75
System C26 20-26 146 847 442 610 753 - 157 94 124 - 336 75
System C35 26-35 149 847 442 610 753 - 157 94 124 - 336 75
System C44 35-44 235 1048 660 852 914 232 154 100 125 111 485 86
C
B
H
W
A
I
J
F
G
E
D
Front View Side View
W
F
H
Top View
C
E
J
I
D
A
System C20, C26 & C35
System C44
Front View Side View
Top View
Use of copper pipe is recommended for a minimum of 1 metre off the boiler.

FireBird Enviromax Systems C20 Specifications

General

Brand	FireBird
Model	Enviromax Systems C20
Category	Boiler
Language	English