Introduction
Important - Installation, Commissioning, Service &
Repair
This appliance must be installed in accordance with the
manufacturers instructions and the regulations in force.
Read the instructions fully before installing or using
the appliance.
In GB this must be carried out by a competent person as
stated in the Gas Safety (Installation & Use) Regulations.
Definition of competence: A person who wor
k
s for a Gas
Safe registered company and holding current certificates
in the relevant A
C
S modules, is deemed competent.
In IE this must be carried out by a competent person as
stated in I.S.
81
3. "Domestic Gas Installations".
Read the instructions fully before installing or lighting the
boiler.
P
romax 24 Store is a floor standing condensing
combination boiler which incorporates a hot water store
to provide domestic hot water (DHW) and central heating
(
C
H). The DHW temperature is user adjustable (e.g. for
summer/winter operation). Operation is automatic and the
fully modulating pre-mixed burner ensures that gas is
burned cleanly and efficiently within the condensing heat
exchanger. An advanced burner control includes flame
monitoring, pressure monitoring and other safety
features, plus status and diagnostic displays which are
large and easy to read.
Installation of this boiler as an unvented hot water system
falls within the scope of the Building Regulations
1
99
5
(
P
art G). These require that installation of an unvented
system shall be notified to the local authority Building
C
ontrol Department; also that the wor
k
must be carried
out by a competent person as defined in the Approved
Document G3. The above requirements do not apply if
hot water is obtained via an open vented feed tan
k
.
Samples of the
P
romax Store gas boilers have been
examined by DVGW Technologies
L
imited, a EU Notified
Body. The range is certified to comply with the essential
requirements of the Gas Appliance Directive 90/396/EE
C
,
the
L
ow Voltage Directive
7
2/23/EE
C
and shows
compliance with the Electro Magnetic
C
ompatibility
Directive
8
9/336/EE
C
, the Boiler Efficiency Directive
92/42/EE
C
and are therefore permitted to carry the
C
E
Mar
k
.
Operation
The boiler control wor
k
s on the principle of “hot water
priority” so the central heating output may be
temporarily delayed if the hot water temperature
drops below the selected temperature e.g. after
drawing a hot bath. The selected temperature is
user adjustable in the range 4
5
° to 6
5
°
C
To suit conventional radiator based central heating
systems, the boiler will normally provide a flow
temperature of around
8
0 °
C
. The boiler control
automatically responds to lower central heating loads
by reducing the boiler output (which saves wasteful
on-off cycling).
This boiler must be installed into a sealed
(pressurised) primary system.
P
rovision is made for fitting both room and frost
thermostats if required.
Note:
The boiler has its own
in-built frost protection which will see
k
to prevent the
boiler temperature dropping below
5
°
C
For summer operation the user can switch off the
central heating at the control panel.
Visible Pluming
The efficient condensing operation of
P
romax Store
will naturally cause condensate to form in the flue
pipe and pluming of the condensing gases will be
visible during all but the most favourable atmospheric
conditions. In installations with long flue runs, some
condensate may be discharged from the terminal.
The flue terminal must, therefore, be sited to avoid
nuisance from either phenomenon.
Delivery & Kits Available
Promax Store
boilers are delivered in three pac
k
ages
(
1
) the heat engine and unvented accessory
k
it, (2)
the hot water cylinder and (3) the flue
k
it. The flue
k
it
must be ordered/specified additionally to the boiler.
Health and Safety Information for the Installer
and Service Engineer
Under the
C
onsumer
P
rotection Act
1
9
87
and Section
6 of the Health and Safety at Wor
k
Act
1
9
7
4, we are
required to provide information on substances
hazardous to health.
This boiler does not contain substances harmful to
health; it does not contain asbestos. Small quantities
of adhesives and sealants used in the product are
cured and present no
k
nown hazards.
Checklist of supplied components:
C
old water control pac
k
including:
Expansion Vessel
Expansion Vessel Brac
k
et
Expansion Vessel Braided Hose with Seals
P
ressure Reducing Valve (2.
5
bar)
P
ressure Relief Valve (
8
bar)
Nuts and Olives
Tundish
Brac
k
et
9
© Baxi Heating UK Ltd 2015