The
WW Expr
ess Boilers AR18 Regular
is a high ef
ficiency
condensing, fully automatic, wall mounted gas appliance for use with
natural gas.
The appliance incorporates a microprocessor based, fully modulating pre-
mix gas control system with direct burner ignition.
The
AR18 Regular
pr
ovides central heating at outputs between 5.9 kW
(20,100 BTU/h) and 19.3 kW (65,900 BTU/h).
Heat output is controlled according to demand by the fully modulating
pre-mix burner control.
The appliance incorporates frost protection. However this is not
operational when the main switch on the appliance is in the off position,
or the electrical supply to the appliance is isolated.
Gas Consumer Council
The Gas Consumer Council (GCC) is an independent or
ganization which
protects the interests of gas users. If you need advice, you will find the
telephone number in your local directory under 'Gas'.
2
SAFETY
Read these user manual instr
uctions or the user label (fitted on the
decorative front panel) carefully before attempting to operate the
appliance. Comply with all applicable warnings. Do not interfere with
any sealed components and use the appliance only in accordance with
these instructions.
CURRENT GAS SAFETY (INSTALLATION AND
USE) REGULATIONS OR THE RULES IN FORCE.
It is the law that all gas appliances ar
e installed by a competent person
in accordance with the above regulations. Failure to install
appliances correctly could lead to prosecution. It is in your own interest,
and that of safety, to ensure that the law is complied with.
If the appliance is damaged, turn off the appliance and consult a
CORGI registered installer.
If it is known or suspected that a fault exists on the appliance it
MUST
NOT
be used until the fault has been r
ectified by a competent person.
2.2
ELECTRICAL SUPPLY
This appliance must be ear
thed.
Supply: 230V ~ 50Hz fused at 3A.
The method of connection to the mains supply must facilitate complete
isolation of the appliance. Either a 3A fused three pin plug and
unswitched shuttered socket outlet, or a 3A fused double pole switch
having a 3 mm contact separation in both poles, serving only the boiler
(and its external controls), may be used.
2.3
CLEARANCES AND VENTILATION
It is not necessar
y to have a purpose provided air vent in the room or
internal space in which a room-sealed appliance is installed.
Cupboard or compartment ventilation is not necessary for a room-sealed
appliance providing that the minimum clearances are maintained.
1
INTRODUCTION
3
BOILER LOGBOOK
A Logbook is supplied with your appliance and is situated at the r
ear of
the installation and service manual. This Logbook should be completed
by your installer to verify that the correct installation and commissioning
procedure was followed.
Failure to complete the Logbook may result in difficulties should a
problem rise with your appliance during the guarantee period.
This Logbook forms part of the industry's Benchmark code of practice
for the installation, commissioning and servicing of central heating
systems. All CORGI Registered Installers carry a CORGI ID card and
have a registration number. Both should be recorded in your Logbook.
You can check your installer is CORGI registered by calling CORGI on
01256 37230.
2.1
4
OPERATING INSTRUCTIONS
Refer to Fig. 1
1)
Switch on the electrical supply
2)
T
urn the CH control knob to the midpoint between minimum and
maximum setting. The display changes from '
o
' to ' '
3)
Ensur
e that all secondary controls, e.g. programer, room thermostat
are calling for heat
4)
The display changes to '
H
'. When the bur
ner has lit there will be a
small dot appearing in the bottom right corner of the display
5)
If the bur
ner fails to light the fan will stop. Initially this may be due to
air in the gas supply. The boiler will automatically have five attempts at
ignition. After the five attempts it may be necessary to RESET the boiler
by turning the control knob to the RESET/STANDBY position and back to
‘ON’ within TWO seconds, then repeat (2).
4.1
TO LIGHT THE BOILER
