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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) I
2H
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
2 4
5 1 6 7 8 9 10
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