Specifications

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Alarms

It is not a requirement to fit an alarm on the system, but it is recommended. The alarm will

act as a warning to the customer if the SCWS should operate. The alarm should be fitted

to the SCWS discharge pipe and should register an increase in temperature when the

SCWS is in operation. The customer should be notified that if this SCWS system/alarm is

continually operating that measures should be taken to stop the overheating of the

appliance. Measures to take are as follows:

1) Close all the air controls, including the tertiary and thermostatic air controls

2) Run hot water tap to remove some of the hot water in the cylinder (if fitted)

The customers should also be made aware that if there is constant operating of the

SCWS, they should contact the installer to diagnose any problems with the system.

N.B. A boiler that is too large for the required heat load will trigger the SCWS too often and

should therefore be replaced by a boiler that is better suited to the heating load.

It is mandatory to fit the safety components below when running a

closed/pressurised system. Failure to install these components will void your

guarantee and warranty, and risk the possibility of damage, to the extent of the

boiler exploding.

Table of required safety components

MS10-11C Issue 2 17

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