Bosch Worcester GREENSTAR CDi Series - PRE-INSTALLATION; CLEANING PRIMARY SYSTEMS

IMPORTANT: All the following Pre-Installation sections must be read and
requirements met before starting boiler or flue installation.
CAUTION: ISOLATE THE MAINS SUPPLIES BEFORE STARTING ANY WORK AND
OBSERVE ALL RELEVANT SAFETY PRECAUTIONS.
1
2
3
@
Valve
~
Flushing
Agent
~ORCESTER
Bosch Group
4
5
KEY
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR 25CDV30CDV37CDci42CD•
6 720 613 700a (2006/11)
CLEANING PRIMARY SYSTEMS
IMPORTANT: Debris from
the system can
damage the boiler and reduce efficiency.
Failure to comply with the guidelines for
the use of water treatment with the appli-
ance will invalidate the appliance warranty.
BEFORE CLEANING THE SYSTEM:
ENSURE
THE
SYSTEM AND PIPEWORK IS
IN GOOD WORKING ORDER
KEEP
THE EXISTING BOILER/
CIRCULATING PUMP
WHERE POSSIBLE
OR USE
A POWER FLUSHING MACHINE
TO
AID THE CLEANSING PROCEDURE
BEFORE INSTALLING A NEW BOILER.
CLEANING THE PRIMARY SYSTEM:
Fill the system with cold water and check
for
leaks.
2 Open all drain cocks and drain the system.
3
Close drain cocks
and add a suitable
flushing
agent at
the correct strength for
the system condition in accordance with
the manufacturer's instructions.
~ Circulate the flushing agent before the
boiler is fired up.
4 Run the boiler/system at normal operating
temperature
as directed by the manufacturer
of
the flushing agent.
5
Drain and thoroughly flush the system to
remove the flushing agent and debris.
CLEANING PRIMARY SYSTEMS