IMPORTANT: All the following
CAUTION: ISOLATE THE MAINS SUPPLIES BEFORE STARTING ANY WORK AND OBSERVE ALL RELEVANT SAFETY PRECAUTIONS.
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 appliance 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.
2 | Open all drain cocks and drain the | PRE- INSTALLATION |
CLEANING THE PRIMARY SYSTEM: |
| |
1 | Fill the system with cold water and |
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| check for leaks. |
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system.
3Close drain cocks and add a suitable flushing agent compatible with aluminium at the correct strength for
the system condition in accordance with the manufacturer's instructions.
The PH value of the system water must be less than 8 or the appliance guarantee will be invalidated.
Circulate the flushing agent before the boiler is fired up.
4Run the boiler/system at normal operating temperature as directed by the manufacturer of the flushing agent.
5Drain and thoroughly flush the system to remove the flushing agent and debris.
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INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
