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Potterton Powermax HE |
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The Potterton Powermax HE combines a condensing stainless steel heat engine, unvented Duplex stainless steel domestic hot water cylinder, pump and programmer in a single package - virtually 'a system in a box'. Installation is reduced to just seven pipework connections plus the flue, which is available in a wide range of options for freedom of siting the boiler and the flue terminal. |
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High performance central heating and hot water in one box. For a complete installation just add the flue kit, radiators, valves and pipework. |
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85 litre |
115 litre |
150 litre |
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| Price | £ | £ | £ |
| Powermax | Units | 85 litre | 115 litre | 150 litre |
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| Max Heat Input | kW | 25.8 | 25.8 | 25.8 |
| Max Output to CH (non condensing) | kW | 22.6 | 22.6 | 22.6 |
| Max Output to CH (condensing) | kW | 24.0 | 24.0 | 24.0 |
| Min Output to CH (non condensing) | kW | 6.7 | 6.7 | 6.7 |
| Min Output to CH (condensing) | kW | 7.6 | 7.6 | 7.6 |
| Automatic modulating of CH heat output | Yes | Yes | Yes | |
| Case height | mm | 1110 | 1270 | 1460 |
| Case width | mm | 550 | 550 | 550 |
| Case depth | mm | 600 | 600 | 600 |
| Built in programmer | 2-channel, pre=programmed, back lit display, battery back-up, separate times for HW & CH, advance button, CH off selector | |||
| User adjustable DHW temperature | Yes | Yes | Yes | |
| LED status/fault display | Yes | Yes | Yes | |
| Seasonal Efficiency (SEDBUK) Rating | %/Class | 90.5/A | 90.5/A | 90.6/A |
| Suitable for unventilated compartments | No | No | No | |
| Min effective high and low ventilation to room | cm2 | 80 | 80 | 80 |
| Min effective high and low ventilation to outside | cm2 | 40 | 40 | 40 |
| Min installation clearance above | mm | 250 | 250 | 250 |
| Min installation clearance front | mm | 75 | 75 | 75 |
| NOx class | 5 | 5 | 5 | |
| Max gas rate | m3/h | 2.55 | 2.55 | 2.55 |
| Inlet pressure | mbar | 20 | 20 | 20 |
| Fuel | Natural Gas | |||
| Secondary store capacity | litres | 85 | 115 | 150 |
| Secondary expansion vessel | 18 litre, pre-charge 2.5 - 2.7 bar (supplied separately) | |||
| Automatic bypass | Yes | Yes | Yes | |
| DHW temperature | °C | 45 to 65 | 45 to 65 | 45 to 65 |
| DHW flowrate 2 | l/min | 30 | 36 | 48 |
| Working pressure - Primary | bar | 09 - 2.5 | 0.9 - 2.5 | 0.9 - 2.5 |
| Working pressure - DHW | bar | 1.0 - 2.5 | 1.0 - 2.5 | 1.0 - 2.5 |
| Working pressure - Mains supply | bar | 1.0 - 16.0 | 1.0 - 16.0 | 1.0 - 16.0 |
| Pressure relief valve setting | bar | 3.0 | 3.0 | 3.0 |
| Temperature/press. Relief Valve | Pre-set 95°C, 10.0 bar opening | |||
| Lift weight top section | kg | 40 | 40 | 40 |
| Lift weight bottom section | kg | 40 | 41 | 43 |
| Full weight | kg | 175 | 208 | 246 |
| Gas | mm | 22- compression | ||
| CH flow & return | mm | 22- compression | ||
| DHW inlet & outlet | mm | 22- tube end | ||
| TPRV | mm | 22- compression from tundish | ||
| Condensate outlet | Flexible pipe 500mm long, (fits 21.5mm PP overflow systems) | |||
| Inlet control group | mbar | 22mm compression inlet & outlet set pressure 2.5 bar, PRV set 8.0 bar | ||
| Electric supply | V-Hz | 230-50 | 230-50 | 230-50 |
| Power consumption | W | 96 | 96 | 96 |
| Noise level | dBA | 48 | 48 | 48 |
| Optional immersion heater | 3 kW at 240V, BEAB approved | |||
| CH frost protection | Yes | Yes | Yes | |
| Concentric flue size | mm | 100 | 100 | 100 |
| Twin pipe flue size | mm | 60 | 60 | 60 |