Care Of The Boiler; Cleaning Agents - Baxi Combi 133 HE Plus User Operating Instructions Manual

normal static &
operating pressure
below
normal
!
Fig. 3
Pressure Gauge
Refer to Page 10 for the definition
of a Competent Person.
above
normal

3.0 Care of the Boiler

3.1 Central Heating System Pressure
1. The water pressure in the central heating system is
indicated by the pressure gauge.
2. The normal operating pressure is in the range between 1
and 2·5 bar.
3. A pressure of 3 bar or greater indicates a fault The safety
pressure relief valve will operate at a pressure of 3 bar and
very hot water or steam will be discharged through the
pipe on the right hand side of the boiler, out of the
property and usually into a nearby drain. It is important that
a Competent Person is contacted as soon as possible.
4. If the pressure falls below 1 bar it may indicate a leak on
the central heating system.
The system must be re-pressurised by a Competent
Person.
3.2 Protection & Precautions
1. The boiler incorporates an integral frost protection
feature that will operate in both Summer and Winter
settings. If the boiler temperature falls below 4 °C, the
boiler will fire until a temperature of 15 °C is reached.
2. If a system frost thermostat has been fitted (your Installer
should have advised you), then to operate correctly and
protect your system, the gas and electricity must be left on
and the appliance set in the winter mode.
3. The boiler incorporates an integral pump protection
feature which continually monitors the time since the pump
last operated. To prevent seizure, the pump will be run for
around 1 minute if it has not been run in the last 24 hours.
3.3 Cleaning the Outercase
The painted panels should be wiped with a damp cloth and
then dried completely. DO NOT USE ABRASIVE

CLEANING AGENTS.

3.4 Spare Parts
1. Any repairs to the boiler will usually be the responsibility
of the Installer during the guarantee period after which
spare parts may be obtained through approved Baxi
stockists if required.
2. Quote the appliance name, model number and where
possible the part number when ordering spares. A short
parts list is included in the Installation and Servicing
Instructions.
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