About The Navicirc - Navien NCB700-2S Plus 42K Installation & Operation Manual

Condensing combi boiler
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2.8 About the NaviCirc

The NaviCirc is a circulation device for standard domestic hot water pipes with a recirculation system. It allows domestic hot water pipes
and secondary return pipe to connect to the NaviCirc and preheat hot water pipes by circulating hot water through the NaviCirc. This
prevents hot water loss and heating time loss.
To minimise the energy consumed while preheating the water, the NaviCirc includes a feature that automatically blocks circulation when
the water reaches a temperature of approximately 35°C.
2.8.1 Included Items
When you open the box, you will find the following items with the NaviCirc. Check the box for each of the following items before
installing the NaviCirc.
NaviCirc
(Recirculation valve)
½" Stainless Cap including a washer
Pressure relief valve
(10 bar)
20
About the Boiler
Bracket
½" 500 mm Flexible hoses
(with a spare one)
Installation and Operation
Manual
Double-sided tape and primer
15 mm X ½" Straight Adaptor
(with a spare one)
DHW expansion vessel
(included with the boiler's
package)
Screws
(M4 x 20L)
Anchors and Screws

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Ncb700-3s 54k

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