Potterton Powermax HE 150 User Manual

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 3OFF 2OFF 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.

Potterton Powermax HE 150 Specifications

General

Fuel Type	Gas
Efficiency	90%
Efficiency Rating	A
ERP Rating	A
NOx Emissions	Class 5
Central Heating Flow Temperature Range	30 - 80 °C
Warranty	2 years
CH Output (kW)	15
Mounting	Wall-mounted

Summary

Quick Guide to the Controls

Control Panel Overview

Details status display, reset button, indicator lights, and temperature control.

Programmer Functions

Explains programmer display, day, time, and control status.

External System Controls

Mentions room thermostat and its role in central heating.

About Safety

Benchmark Installation, Commissioning and Service Record Log Book

Explains the Benchmark initiative for improved installation standards.

CORGI Registration

Information on CORGI registered installers and verification.

Installation & Service Requirements

Requirements for installation, competence, earthing, and casing.

Guarantee Information

Details about the boiler guarantee and service call charges.

Boiler Description

Describes the boiler type, operation, and efficiency.

How your boiler Works

Boiler System Operation

Explains boiler controls, central heating, and hot water systems.

Optional Immersion Heater

Details the optional immersion heater and its reset.

Things you need to be aware of

System Operation and Maintenance

Covers air locks, pressure, flue, freezing, condensate, cleaning, and external controls.

Safety and Emergency Procedures

Details safety discharge pipes and emergency actions for gas/water leaks.

How to set the Programmer

Setting the Programmer for Built-in Times

Shows default ON/OFF times for CH and HW for weekdays/weekends.

Using the HW and CH 'SELECT' Button

Explains how to select OFF, TIMED, ONCE, or ON modes.

Using the 'ADVANCE' Button

How to advance CH timing to the next ON or OFF period.

Programmer Memory Backup

Explains power failure backup and battery replacement.

Programmer Setting Procedures

Normal Operation

Describes normal display and programme options.

Setting the Time & Day

Step-by-step guide to setting the current time and day.

Setting the On/Off Times

Guide to setting custom ON/OFF times for heating and hot water.

Basic Troubleshooting

Boiler not working

Checks for gas, electricity, and programmer settings.

Programmer not working

Checks for display issues and ADVANCE button function.

C.H. System Pressure

Describes pressure indicators, low pressure, and high pressure faults.

Fault/Information Display Codes

Lists display codes (P, A, E) and their meanings/actions.

Customer Support Contact

Key Support Contacts

Provides contact numbers for Technical and Service departments in GB and IE.

Other Contact Points

Lists contact details for General Enquiries, Sales, Literature, and Spares.