Cleaning Primary Systems - Bosch Worcester Greenstar CDi Conventional Series Instruction Manual

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
4
2
5
3
KEY
@
Valve
~
Flushing
Agent
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
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR 30CDI/40CDI Coc,ectlocal
~ORCESTER
6 720 614 556a (2007/07)
Bosch Group