4.6
PRESSURE GAUGE
The pr
essure gauge on the control fascia panel indicates the central
heating system pressure. If the normal running pressure is seen to
decrease from the original installation pressure of around 1 bar (cold)
over a period of time, then there may be a water leak. In this event
consult a CORGI registered installer.
Do not attempt to fir
e the boiler if the pressure has reduced
to zero from the original setting.
T
o ensure continued efficient operation of the appliance, it is recommended
that it is checked and serviced as necessary at regular intervals. The
frequency of servicing will depend upon the particular installation
conditions and usage but in general once a year should be adequate. It is
law that any service work must be carried out by a competent person such
as British Gas or other CORGI registered personnel.
GENERAL CARE
The fr
ont panel, being a powder coated white finish should be cleaned
with a damp cloth and mild detergent. Do not use abrasive cleaners.
ROUTINE SERVICING
WARNING
If a gas leak is suspected or exists, tur
n the gas OFF at the
incoming mains (adjacent to the meter). Do not operate any
electrical switches. Do not operate any electrical appliances.
Open all windows and doors. Do not smoke. Extinguish all
naked lights. Phone the Transco 24 hour emergency number
immediately on 0800 111 999.
(Do not call from a mobile phone).
The boiler is fitted with a condensate trap.
The condensate drain point must not be modified or blocked
(see section 4.6 of the installation manual).
Like all condensing boilers this appliance will produce a
plume of condensation from the flue terminal. This is due to
the high efficiency and hence low flue gas temperature of
the boiler. It is normal and not a fault indication.
5
6
7
PLUMING FROM TERMINAL
8
4.3
TO TURN THE BOILER OFF
For shor
t or long periods
Switch the pr
ogrammer and/or room thermostat switch to the
OFF
position.
Note:
The appliance is fitted with a fr
ost protection device. In the event
of very cold conditions, the pump may operate and the boiler light for a
few minutes to protect the appliance from potential frost damage. This
can only function if the gas and electricity supplies are maintained and
the control knob on the appliance is set to the ‘STANDBY’ position.
This function automatically operates the boiler when the heating system
water reaches temperatures below 5°C.
If either the gas or electricity services are to be isolated during a period
when frost is likely, the water circuits must be drained.
4.4
BOILER OVERHEAT PROTECTION
The appliance is fitted with two water temperatur
e thermisters located on
the flow and return pipes. In the event of overheating, the boiler will shut
down and the digital display will show '
1
'. Allow the boiler to cool, then
briefly turn the control knob fully anti-clockwise to the RESET/STANDBY
position and then back to 'ON' within TWO seconds.
If the fault persists, consult a CORGI registered installer.
4.5
DIAGNOSTIC DIGITAL DISPLAY
Refer to Fig. 2
If the digital display shows an er
ror code between
1
and
4
the boiler is in
lockout condition
To RESET the boiler turn the control knob fully anti-clockwise to the
RESET/STANDBY position and then back to 'ON' within TWO seconds.
For faultfinding, refer to the diagnostic chart shown on the previous page,
together with the notes given in sections 8.1, 8.2, 8.3 and 8.4 of the
boilers installation manual.
S E R V I C E H E L P L I N E : 0 1 9 2 6 8 3 4 8 3 4
03/07 751188
Manufactured for William Wilson by Halstead Boilers Limited.
Halstead Boilers Limited, 20/22 F
irst Avenue, Bluebridge Industrial Estate, Halstead, Essex C09 2EX.
Enquiries Line: 01224 877522. Service Helpline: 01926 834834.
Halstead Boilers is continuously improving its products and may therefore change specifications without prior notice.
The statutory rights of the consumer are not affected.
