Worcester Greenstar Highflow 440CDi User Manual

PRE-
INSTALLATION
INSTALLATION & SERVICING INSTRUCTIONS
6
CLEANING PRIMARY SYSTEMS
CLEANING PRIMARY SYSTEMS
CAUTION: ISOLATE THE MAINS SUPPLIES BEFORE STARTING ANY WORK
AND OBSERVE ALL RELEVANT SAFETY PRECAUTIONS.
IMPORTANT: All the following pre-installation sections must be read and
requirements met before starting boiler or flue installation.
8 716 115 219c (03.2010)
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 appliance
will invalidate the appliance warranty.
BEFORE CLEANING THE SYSTEM:
ENSURE THE SYSTEM AND PIPEWORK ARE
IN GOOD WORKING ORDER.
USE 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
IMPORTANT: ARTIFICIALLY SOFTENED
WATER MUST NOT BE USED
TO FILL THE CENTRAL
HEATING SYSTEM.
Fill the system with cold mains water to
the recommended pressure and check for
leaks.
Open all drain cocks and drain the system.
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.
Run the boiler and system at normal
operating temperature in accordance with
the manufacturer's instructions.
Drain and thoroughly flush the system to
remove the flushing agent and any debris.

Worcester Greenstar Highflow 440CDi Specifications

General

Model	Greenstar Highflow 440CDi
Category	Boiler
Output	40kW
Domestic Hot Water Output	40kW
ERP Rating	A
Fuel Type	Natural Gas
Central Heating Flow Temperature Range	30°C to 80°C
Warranty	5 years