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.
Flushing
Agent
^WORCESTER
INSTALLATION & SERVICIN
6 720 611 927b (04/05)
Bosch
roup
INSTRUCTIONS FOR WORCESTER BOSCH
REENSTAR 25CDi/30CDi/35CDi/40CDi
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:
1
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