Householder Information
IMPORTANT!
Your boiler must be commissioned in order to:
- Validate your warranty
- Ensure the boiler has been installed correctly and avoid premature failure
- Set the boiler to its optimum efficiency. Operating conditions for the boiler will vary from site to site, your
commissioning engineer has specialised equipment to check the oil pressure and analyse the exhaust gases for
temperature, smoke and carbon dioxide content.
Your installer will organise the commissioning of your boiler. Should you experience any difficulty locating an
engineer, our service department may be able to provide you with details of an engineer in your area.
“Benchmark” Installation, Commissioning and Service Record Log Book
Please ensure that your installer has completed all sections of the log book (found at the back of this manual).
The log book will be required in the event of any warranty work. Ensure that the service record is completed.
Warranty
Your HRM boiler is under warranty for 2 years from the date of installation.
Warranty Conditions
- The boiler must be installed and commissioned in accordance with our handbook
- The boiler must not be repaired, modified or tampered with by any person not authorised by HRM
Extended Warranty
The “Benchmark” and warranty registration document at the end of this manual should be completed as
appropriate by your installer / engineer. This is your record that the boiler has been correctly installed in accordance
with our recommendations. Return the warranty registration document to HRM in order to qualify for a further 3 year
warranty of the heat exchanger – a total of 5 years.
Extended Warranty Conditions
- The boiler must be serviced annually and maintained in accordance with this handbook. The
“Benchmark” service log is located at the back of this manual
- This warranty is in addition to your statutory and other legal rights
After Sales Service
- If your boiler fails during the warranty period contact your installer, who will be able to identify the
cause of the problem. If appropriate, your installer will contact us.
- Under no circumstances should “in warranty” work be undertaken without authorisation from the HRM
service department
- If you are unable to contact your installer please contact our service department. Quoting your boiler’s
serial number when phoning – this can be found on the cover of this manual.
Standard X-ternal & System X-ternal
Handbook
Householder Information
IMPORTANT!
Your boiler must be commissioned in order to:
- Validate your warranty
- Ensure the boiler has been installed correctly and avoid premature failure
- Set the boiler to its optimum efficiency. Operating conditions for the boiler will vary from site to site, your
commissioning engineer has specialised equipment to check the oil pressure and analyse the exhaust gases for
temperature, smoke and carbon dioxide content.
Your installer will organise the commissioning of your boiler. Should you experience any difficulty locating an
engineer, our service department may be able to provide you with details of an engineer in your area.
“Benchmark” Installation, Commissioning and Service Record Log Book
Please ensure that your installer has completed all sections of the log book (found at the back of this manual).
The log book will be required in the event of any warranty work. Ensure that the service record is completed.
Warranty
Your HRM boiler is under warranty for 2 years from the date of installation.
Warranty Conditions
- The boiler must be installed and commissioned in accordance with our handbook
- The boiler must not be repaired, modified or tampered with by any person not authorised by HRM
Extended Warranty
The “Benchmark” and warranty registration document at the end of this manual should be completed as
appropriate by your installer / engineer. This is your record that the boiler has been correctly installed in accordance
with our recommendations. Return the warranty registration document to HRM in order to qualify for a further 3 year
warranty of the heat exchanger – a total of 5 years.
Extended Warranty Conditions
- The boiler must be serviced annually and maintained in accordance with this handbook. The
“Benchmark” service log is located at the back of this manual
- This warranty is in addition to your statutory and other legal rights
After Sales Service
- If your boiler fails during the warranty period contact your installer, who will be able to identify the
cause of the problem. If appropriate, your installer will contact us.
- Under no circumstances should “in warranty” work be undertaken without authorisation from the HRM
service department
- If you are unable to contact your installer please contact our service department. Quoting your boiler’s
serial number when phoning – this can be found on the cover of this manual.
Standard X-ternal & System X-ternal
Handbook
Contents Page
DESCRIPTION PAGE
Householder Information
Warranty Registration Document End Of Manual
Warranty 3
Extended Warranty 3
After Sales Service 3
Boiler Controls: Wallstar 4
System Wallstar 5
Wallstar Combi 6-7
Burner Lockout 8
Technical Specifications
Boiler Dimensions: Wallstar 9
Boiler Dimensions: System Wallstar 10
Boiler Dimensions: Wallstar Combi 11
Technical Specifications 12
Burner Settings 13
Boiler Installation
Regulations 14
Boiler Sizing 14
Refurbishing An Old System 14
System Protection 14
Boiler Location 15
Wall Construction 15
Flue Terminating Positions 16
Fuel Supply System 17
Oil Supply 17
Installation Procedure
Wallstar 18-23
System Wallstar 24-31
Wallstar Combi 32-40
Condensate Drain 41
Wiring Diagrams
Wallstar 42
System Wallstar 42
Wallstar Combi 43
Boiler Maintenance
Baffle Removal 44
Fault Diagnosis
Wallstar Combi 45
Wallstar Combi Components 46
Contacts
Tel No: 01953 455400
Fax No: 01953 454483
Email: info@hrmboilers.co.uk or technical@hrmboilers.co.uk
1
Standard Wallstar, System Wallstar &
Wallstar Combi Manual
Contents Page
DESCRIPTION PAGE
Householder Information
Warranty Registration Document End Of Manual
Warranty 3
Extended Warranty 3
After Sales Service 3
Boiler Controls: Wallstar 4
System Wallstar 5
Wallstar Combi 6-7
Burner Lockout 8
Technical Specifications
Boiler Dimensions: Wallstar 9
Boiler Dimensions: System Wallstar 10
Boiler Dimensions: Wallstar Combi 11
Technical Specifications 12
Burner Settings 13
Boiler Installation
Regulations 14
Boiler Sizing 14
Refurbishing An Old System 14
System Protection 14
Boiler Location 15
Wall Construction 15
Flue Terminating Positions 16
Fuel Supply System 17
Oil Supply 17
Installation Procedure
Wallstar 18-23
System Wallstar 24-31
Wallstar Combi 32-40
Condensate Drain 41
Wiring Diagrams
Wallstar 42
System Wallstar 42
Wallstar Combi 43
Boiler Maintenance
Baffle Removal 44
Fault Diagnosis
Wallstar Combi 45
Wallstar Combi Components 46
Contacts
Tel No: 01953 455400
Fax No: 01953 454483
Email: info@hrmboilers.co.uk or technical@hrmboilers.co.uk
1
Standard Wallstar, System Wallstar &
Wallstar Combi Manual
Boiler Controls – Standard Wallstar
Control Panel
Temperature Control Thermostat
The control thermostat regulates the temperature of the water within the boiler.
The recommended settings, governed by the control knob, are maximum for heating and hot water, and minimum for
hot water only.
Boiler Overheat (Limit) Thermostat
In the unlikely event the boiler overheats, the reset button will trip and cut the power supply to the boiler. Allow the
boiler to cool then press the reset button to reset the thermostat.
IMPORTANT - If overheating occurs regularly, consult your installation engineer. There may be a fault with the
central heating system.
Power Neon Lamp
The lamp is illuminated when there is power to the control thermostat and the control system (time clock) is
requesting heat.
Limit Neon Lamp
The lamp is illuminated when there is power to the controls, but the boiler has overheated. When the limit reset is
pressed this lamp should extinguish.
Lockout Reset Lamp
The lamp is illuminated when there is power to the controls, but the burner has not fired correctly. When the lockout
reset is pressed this lamp should extinguish. This lamp is also a reset button which provides an alternative to pressing
the reset on the burner itself.
4
Standard Wallstar, System Wallstar &
Wallstar Combi Manual
Boiler Controls – System Wallstar
Control Panel
Temperature Control Thermostat
The control thermostat regulates the temperature of the water within the boiler.
The recommended settings, governed by the control knob, are maximum for heating and hot water and minimum for
hot water only.
Boiler Overheat (Limit) Thermostat
In the unlikely event the boiler overheats, the reset button will trip and cut the power supply to the boiler. Allow the
boiler to cool then press the reset button to reset the thermostat.
IMPORTANT - If overheating occurs regularly, consult your installation engineer. There may be a fault with the
central heating system.
Power Neon Lamp
The lamp is illuminated when there is power to the control thermostat and the control system (time clock) is
requesting heat.
Limit Neon Lamp
The lamp is illuminated when there is power to the controls, but the boiler has overheated. When the limit reset is
pressed this lamp should extinguish.
Lockout Reset Lamp
The lamp is illuminated when there is power to the controls, but the burner has not fired correctly. When the lockout
reset is pressed this lamp should extinguish. This lamp is also a reset button which provides an alternative to pressing
the reset on the burner itself.
Pressure Gauge
The heating system should be pressurised to approximately 1 bar when cold. Check the pressure occasionally, as
loss of pressure may cause the boiler to overheat. Please refer to note 10 (Page 28) in the installation procedure
section for instructions on pressurising the system.
5
Standard Wallstar, System Wallstar &
Wallstar Combi Manual
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