5
4000121771-2
Caution:
The boiler is installed as part of a sealed system
which must only be drained and filled by a competent person.
If the mains electricity and gas are to be turned off for any long
periods during severe weather, it is recommended that the
whole system, including the boiler, refer to diagram 1, should
be drained to avoid the risk of freezing. Make sure that, if fitted,
the immersion heater in the cylinder is switched off.
If in doubt, consult your servicing company.
• If the boiler loses water:
the pressure will be indicated
(a)
and the boiler ON indicator
(b)
will flash red indicating a fault.
Fill the system by the filling device
(c)
at the bottom of the boiler
until the pressure gauge reads 1.0 bar.
Reset boiler:
refer to diagram 2, switch On/Off to
( 0 )
, wait for
five seconds. Switch On/Off to
( I )
to reset the appliance.
The
Themaclassic plus
boiler is a wall mounted modulating
combination boiler with electronic ignition providing central
heating and instantaneous hot water.
The boilers are equipped with a litre domestic hot water
storage vessel that ensures maximum hot water temperature
stability during domestic demand.
The boiler is of the
II
2H3+
category for use with Natural Gas (G20)
as distributed in the United Kingdom, or Butane (G30), Propane
(G31) with the appropriate conversion kit.
The boiler has a fan assisted balanced flue which both discharges
the products of combustion to and draws the combustion air
from the outside of the room.
Both the central heating and domestic hot water temperature
are user adjustable.
Domestic hot water demand always has priority over heating
demand.
The boiler is designed for use as part of a sealed water central
heating system with fully pumped circulation. The pump,
expansion vessel and associated safety devices are all fitted
within the boiler.
The boiler can be installed against either an external wall or on
an adjacent inside wall, that is, the flue system will pass directly
to the rear or to either side to the terminal fitted on the outside
wall face.
This boiler may be installed in any room, although particular
attention is drawn to the installation of a boiler in a room
containing a bath or shower where reference must be made to
the relevant requirements.
Any electrical switch or boiler control utilising mains electricity
should be placed so that it cannot be touched by a person using
the bath or shower.
In GB this is the current I.E.E. WIRING REGULATIONS and
BUILDING REGULATIONS.
In IE reference should be made to the current edition of I.S.813
"Domestic Gas Installations" and the current ETCI rules.
These instructions should be carefully followed for the safe and
economical use of your boiler. The 'User Controls and Lighting'
section describes how to safely use the boiler.
Note:
The boiler serial number is marked on the data label
attached to the rear of the control box.
Flue options
There are various flue systems to choose from, for detailed
information refer to flue options guide, which is available
from your nearest stockist.
Accessories
A range of accessories are available.
For further information contact your supplier.
Draining and Filling
Appliance Introduction
Diagram 1
BOILER
DRAIN
VALVE
11900
➜
(c)
(a)
(b)
