Hamworthy PUREWELL VariHeat c User manual

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Hamworthy Heating Limited Purewell Variheat 500001168/B
PUREWELL VariHeat (c & he Models)
INSTRUCTIONS FOR USE
Note:- This boiler is for use on Natural Gas (2nd Family) I2H only. Only a competent person must carry
out any adjustments.
WARNING: All installations MUST conform to the relevant Gas Safety and Building Regulations.
It is law that all gas appliances are installed and maintained by competent persons in accordance with
the above regulations.
This appliance must only be used for the purpose and under the conditions, for which it is designed. This
appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instructions concerning use of the appliance by a person responsible for their safety. Children should be
supervised to ensure that they do not play with the appliance.
LIGHTING INSTRUCTIONS
Carry out the following procedure for each boiler.
1) Ensure the electrical mains supply to the boiler
module is switched on and that any external
controls are calling for heat (Time clock, BMS
etc.).
2) Use the Mode Button (3) to select the desired
operating mode.
3) The boiler should go through it’s sequence and
finish at the default screen shown above.
4) By using the Info button (10) the boiler status can
be viewed. To return to the default screen press
Mode button (3).
5) To change the clock time (24hrs) press ‘Prog’
button (6) or (7). Set the clock to the desired time
by pressing the value button (8) or (9). Having set
the time press the Mode button (3) followed by the
Info button (10).
6) To set/change the program timings, press ‘Prog’
button (6) or (7). To select the desired switching
times press the ‘Prog’button (6) or (7) scrolling
The boiler display screen provides various levels of access to view and change the performance parameters of
the boiler.
A code is used to access the various security levels of the program.
The User can change parameters relating to time clock, boiler program timings and boiler temperature setpoint.
In addition, the User can view performance data and reset specific lockouts. Should a lockout occur, a code will
flash alternatively with the time of day, indicating the fault.
Should a fault code appear which cannot be reset, or a fault code repeatedly occurs, contact Hamworthy
Heating for assistance. Do not continue to operate or use the boiler as this may cause damage to the con-
trols.
Button Function
1 Reset Lockouts
2 Not Used
3 Selection of Operating Mode
Automatic (time control)
Continuous ‘Normal’temperature
Continuous ‘Reduced ‘setback temperature
Standby - boiler off.
4 Adjustment of boiler or room temperature
5 Not used
6, 7 Selection of operating parameter
8, 9 Adjustment of parameter value
10 Select Information display screens
1) Boiler off - based on ‘On/Off’button
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5 1 6 7 8 9 10
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Hamworthy Heating Limited Purewell Variheat 500001168/B
For service or spares please contact:-
Hamworthy Heating Limited Phone Number 01202 662500
Wessex House Fax Number 01202 662522
New Fields Business Park Service 01202 662555
Stinsford Road Spares 01202 662525
Poole, Dorset BH17 0HH Technical 01202 662505
through the three switching periods. Adjust the on/
off time by pressing the value button (8) or (9).
Having set the time press the Mode button (3) to
return to the default screen.
7) To change the temperature set point press the flow
temperature button (4). To increase / reduce the
set point, press of the button (8) or (9) respectively.
This will change the set point in increments of 1.0°
C. Once the desired temperature has been
reached, store the setting by pressing the ‘Mode’
button (3).
Note: if the new set point is not entered, then the
system will revert to the original setting on the next
power off.
If no button is pressed for about 8 minutes, the screen
will automatically return to the default display.
Lockouts - should safety critical failures occur, a
lockout situation will result causing the boiler to
shutdown. An error code will be displayed on the
screen flashing alternatively with the time of day. The
error code provides an indication of the lockout.
Should a lockout occur, press the Reset button to
reset the lockout.
Should a Overheat lockout occur, the overheat
thermostat in the display facia will require re-setting.
The reset push button can be accessed by a hole in
the display facia. Use a pen or small screw driver to
depress the button. To reset an Overheat condition,
the boiler must be allowed to cool down.
If the problem persists, seek expert advice from your
installer or Hamworthy Heating Ltd.
Shutting Down the Boiler
To shut the boiler off for short periods i.e. 2 to 3 days,
carry out the following procedure for each module of
the boiler -
1) Push the Mode button (3) until the Standby mode
is selected
2) Alternatively the boiler can be put into setback
operation by selecting the ‘Reduced’mode.
Note:- During periods of intense cold weather, do not
switch off the boiler module electrical mains supply,
this will permit the system frost thermostat to function
and protect the system.
To shut the boiler off for longer periods i.e. during
summer periods, carry out the following procedure for
each module of the boiler -
1) Switch the boiler module off as described above.
2) Turn the main gas service valve off.
Note:- During periods of intense cold weather and
with the boiler shut down for prolonged periods, the
complete system should be drained (including the
boiler). A notice should be placed on the boiler
highlighting the fact that the system has been drained
down.
The gas service valve should not be used, except in
emergencies, or for long periods of shutdown or
during servicing.
Additional Safety Advice
1) Do not block or obstruct ventilation grilles.
2) Do not block or modify the condensate discharge.
3) If at any time a gas leak is suspected, turn OFF the
gas supply - DO NOT use a naked flame - contact
your nearest Gas Board immediately. Generally
their telephone number can be located under GAS
in your local telephone directory.
4) If you consider the boiler to be malfunctioning, turn
it OFF and seek expert advice.
5) To ensure safe and efficient operation at all times,
it is essential that the boiler is serviced regularly.
Contact your installer or Hamworthy Heating Ltd.
for advice.
6) Do not attempt to fire the boiler without first
checking for correct water circulation. Consult the
Installation Manual for information.
Cleaning
To keep the casing clean wipe with a damp cloth, do
not use abrasive cleaning materials. DO NOT use jets
or sprays of water when cleaning area around boiler
module controls fascia.
Note:- When cleaning the casing take care not to
touch the flue of the appliance as this could be at a
very high temperature and contact could cause injury.
Servicing
This appliance should be serviced on an annual basis,
preferably by a Hamworthy appointed person.