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LEGIONNAIRES' DISEASE
An anti-Legionella function is present in the software but is default turned OFF. See this manual for the program-
ming options.
Safety valve
Hot water could be released when the safety valve is opened. This can result in severe personal injury.
Before operating the safety valve manually, check that it will discharge in a safe place. If water does not
flow freely from the end of the discharge pipe, turn the gas supply and power off and a call a qualified
person to determine the cause. Refer to the safety valve manufacturer's instructions for inspection and
maintenance requirements.
DO NOT apply a closing valve or any other form of narrowing between the water heater and the safety valve, be-
cause this might disturb the correct functioning of the safety valve.
Lochinvar will supply a correctly sized safety valve with the unvented kit for the complete system based on indi-
vidual project requirements.
Water heater
All models
The EFW water heater and tank should be installed by a skilled installer according to all applicable standards and
regulations for tap water installations. Use the next scheme as guideline. When multiple water heaters and tanks
are applied, every combination has to be equipped with its own safety valve.
Typical system layout
12
Safety valves
1" Safety Valve rated @ 7 bar
E93.1804.014
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