Potterton
Powermax HE
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gas boiler |
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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. |
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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- Three models to suit the
majority of situations, serving up to 2 bathrooms, an en-suite, a
cloakroom and a kitchen
- DHW flowrates up to 48
l/min - filling a bath in around 5 minutes
- Operates at water
pressures as low as 1.0 bar
- Rapid recovery of store
(15-20 mins)
- Output modulating down
to 6.7 kW for maximum efficiencyv
- Automatic by-pass for
systems with thermostatic radiator valves
- Integrated and pre-wired
7 day 3 period electronic programmer with battery back up
- On-board diagnostic
functions with LED display
- Built-in frost
protection
- User selectable hot
water store temperature
- Boiler heat exchanger
and storage cylinder in high quality stainless steel
- Cylinder guaranteed 10
years
- Optional back-up
electric immersion heater
- Comprehensive concentric
and twin pipe flue options
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85 litre |
115 litre |
150 litre |
Price |
£ |
£ |
£ |
CURRENTLY OUT
OF STOCK
Powermax |
Units |
85
litre |
115
litre |
150
litre |
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 |
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