Approved Flue System; Installation Precautions - Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions

A F S
PPROVED LUE
The approved flue system is not suitable for use external to the building. If external routes cannot be avoided, a
flue system manufacturer must be consulted to supply a suitable alternative.
EF80 – EF120 Water heaters are supplied for connection to a concentric flue system. If twin pipe or conventional
flue is used, a conversion kit will be required.
EF150 & EF180 Water heaters are supplied for connection to a twin pipe or conventional flue system. If concentric
flue is to be used, a conversion kit will be required.
When used as a Type C (Balanced Flued) appliance, the approved, purpose designed adaptive flue system from Lochinvar should be used.
Concentric and twin-pipe options are available.
When used as a Type B (Conventional Flued) appliance, a suitable flue system constructed of Stainless Steel or Polypropylene with a
temperature rating in excess of 120C should be used. Internal flue items are available from Lochinvar. For further details of available
components see EF Flue assembly and ancillaries' document available at
Aluminium flue pipe must not be used on this appliance as it may lead to premature failure of the heat exchanger
and will invalidate the warranty.
I P
NSTALLATION RECAUTIONS
 The approved flue system is rated to 120C max.
 The heater must not be operated unless the complete flue system is installed. This includes the Water heater connections, twin-
pipe conversion kit (if required) flue pipes, air ducts (if required) and terminals. If discharging at low level, a suitable flue guard must
be installed.
Due to the condensing nature of the Water heater, long external runs should be avoided to prevent the condensate freezing within

the flue system.
 During assembly of the flue system, precaution should be taken to ensure that the internal sealing ring is seated correctly.
Due to the close tolerances in the flue system, it may be necessary to use a twisting action to fit the joints together. No lubrication

other than water should be used.
YSTEM
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