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Hamworthy Heating Limited Wessex Modumax mk3 500001309-A
WESSEX MODUMAX Mk3
INSTRUCTIONS FOR USE
Note
:- This boiler is for use only on Natural Gas (2nd
Family)
I
2H
or LPG Propane
I
3P
. 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.
The boiler condense outlet shall not be modified or
blocked.
Electrical supply to the boiler MUST be suitably
earthed.
The boiler display screen provides various levels of access to view and change the performance parameters of
the boiler.
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
be displayed on the screen. A red LED is displayed constantly when a non-blocking fault is detected (following
correction of the fault, the LED goes off). The LED flashes when a blocking fault is detected (in this case, the
LED goes off after the fault has been corrected and the reset button on the interface
has been pressed),
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
Symbol
Function
1
RESET
2
DHW
3
Selection of Heating Mode
Automatic (time control)
Continuous ‘ Normal’ temperature
Continuous ‘ Reduced ‘ setback temperature
Standby - boiler off.
4
Rotary knob function control
5
ESC
6
OK
7
ON/OFF
8
INFO
9
Green LED (flame present)
10
Red LED (fault detected)
Figure 1 - Boiler Control Panel Fascia
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1
3
4
5
6
7
8
9
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