Enviromax System- Technical Information

 

ENVIROGREEN SYSTEM - TECHNICAL INFORMATION

Heat Output kW

12-20+20-26

26-35

36-44

CONNECTIONS

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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.

Drain Off Valve

½" BSP

½" BSP

½" BSP

Safety Pressure Valve Outlet (Copper)

15 mm dia.

15 mm dia.

15 mm dia.

Condensate Trap

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?

Yes

Yes

Yes

Filling Loop Included?

Yes

Yes

Yes

WATER CONTENT

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Water Content Boiler

24 litres

24 litres

45 litres

FLUE

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Balanced Flue Assembly

125 (5") mm dia.

125 (5") mm dia.

150 (6") mm. dia.

Max. Low Level Flue Length

1.5 m

1.5 m

1.5 m

Max. High Level Balanced Flue Length

6 m

6 m

6 m

HEATING SYSTEM (SEALED)

Fit in accordance with BS 7074 Part 1, BS 5449, OFTEC standards and all other relevant legislation.

Max. Operating Pressure

2 bar

Max. System Pressure Cold

1.5 bar

Min. System Pressure Cold

0.5 bar

Preset Pressure Relief Valve

3 bar

WATER SIDE RESISTANCE

Flow rate to give a nominal output at 10K differential

Flow Rate Measured:

1642 kg/h (12-20kW), 2135 kg/h (20-26kW), 2874 kg/h (26-35kW), 3613 kg/h (36-44kW)

Waterside Resistance: 0.18 mbar (12-35kW), 0.22 mbar (36-44kW)

Flow rate to give a nominal output at 20K differential

Flow Rate Measured:

870 kg/h (12-20kW), 1131 kg/h (20-26kW),   1523 kg/h (26-35kW), 2915 kg/h (36-44kW)
Waterside Resistance: 0.19 mbar (12-35kW), 0.24 mbar (36-44kW)

PRESSURE JET OIL BURNERS

ELCO FB 2 K LN 12-44kW

FUEL

Kerosene 28 Second Class C2

ELECTRICAL SUPPLY

230V AC 50Hz 5A

THERMOSTATS

Thermostats have an operating tolerance of + 4°C

Boiler Central Heating Control

60°C - 80°C

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Over-run - Fixed

87°C