User’s Instructions
Powermax HE
85, 115 & 150 Litre
Condensing Boilers with
Integrated Hot Water Storage
MAX0048A
Domestic
Hot Water
'ON' Indicator
Light (Green)
Mains 'ON'
Indicator
Light (Amber)
Burner 'ON'
Indicator
Light (Green)
Lock Out
Indicator
Light (Red)
Lock Out
Reset
Button
Integral Programmer
Controls
Domestic Hot Water
Temperature Control
Boiler ON- OFF
Switch
Central Heating
'ON' Indicator
Light (Green)
Status/Error Code
Display Window
MON
TIME ON 1 ON 2 ON 3
DAY
OFF 3
OFF 2
OFF 1
TUE WED THU FRI SAT SUN
OFF
TIMED
ONCE
ON
OFF
TIMED
ONCE
ON
A
P.M
Programmer
Display
Window
Quick Guide to the Controls
When the Powermax was installed, the Installer should
have -
left or given you these and other instructions including the
Benchmark Log Book and Potterton Warranty Envelope.
left the programmer showing the current day and time of
day.
Note:
The programmer has default On/Off time
periods for both Hot Water and Central Heating.
About the Control Panel
Status display
Window used to show either operating status e.g. central
heating or hot water, the selected hot water temperature, or
heating system pressure - see chart on Page 7.
Note:
The
display defaults to pressure P (in bar).
Operating errors or fault lock-out conditions are displayed
as E (number) or A (number) - see chart on Page 7.
Note:
Please record the fault code and the boiler Serial No. (see
page 8) when contacting the Service department.
Reset button
Use this button to scroll display when setting the desired
hot water temperature, or checking status or pressure. Use
also to re-start boiler after fault is repaired.
Amber neon
- indicates that the mains electricity
supply to the boiler is switched on.
Green neon
- indicates that the burner is lit and heating
either the Hot Water or Central Heating.
Red neon
- indicates that the boiler has gone to lock out
and needs to be reset by pressing the Lock-Out reset
button.
Hot water
- the temperature of the stored hot water can
be adjusted over the approximate range of 45 °C to 65
°C.
About the Programmer
The programmer display window will show the current
day, current time of day (12 hour clock) and control status
of both the Hot Water and Central Heating.
If the Central Heating is in a timed OFF period and you
wish to bring it on manually, just press the 'Advance'
button. Similarly if the system is ON and you wish to
switch it OFF, again, press the 'Advance' button.
The programmer settings can be changed to have
different On/Off times for both Hot Water and Central
Heating for each day of the week.
Other Controls
A room thermostat, if fitted, will further control central
heating operation.
