Navien NHB H Series Installation And Operation Manual page 117

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Item
Test the DHW (zone 1)
pump operation.
5. DHW (zone 1)
Pump
Test the zone 1 valve
operation.
6. Zone1 Valve
Output
Test the zone 2 valve
operation.
7. Zone2 Valve
Output
Description
The DHW (zone 1)
pump is turned on as
soon as you enter the
test mode.
Press the Command
dial (
) to toggle the
pump operation (On ->
Off / Off -> On).
The zone 1 valve is
turned on as soon
as you enter the test
mode.
Press the Command
dial (
) to toggle the
valve operation (On ->
Off / Off -> On).
This option is available
only when the "Zone
Valve System" is active.
The zone 2 valve is
turned on as soon
as you enter the test
mode.
Press the Command
dial (
) to toggle the
valve operation (On ->
Off / Off -> On).
This option is available
only when the "Zone
Valve System" is active.
Item
Test the zone 3 valve
operation.
8. Zone3 Valve
Output
Test the dual venturi
operation.
9. Dual Venturi
Description
The zone 3 valve is
turned on as soon
as you enter the test
mode.
Press the Command
dial (
) to toggle the
valve operation (On ->
Off / Off -> On).
This option is available
only when the "Zone
Valve System" is active.
The dual venturi is
turned on as soon
as you enter the test
mode.
Press the Command
dial (
) to toggle the
dual venturi operation
(On -> Off / Off -> On).
Operating the Boiler
117

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Nhb-055hNhb-080hNhb-110hNhb-150hNhb-h series

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