Checkout; Final Checkout Of The Installation - Honeywell A4021 Series Product Handbook

CHECKOUT

The procedures described in this chapter are related to
A4021A. For adjustments on the other additional
functionalities (e.g. pressure switch), refer to the included
instruction sheet of the product in question in the package.
WARNING
Phase -- neutral dependency
As the EARTH is not connected to the actual A4021A
(earth only connected to the sub--base), it is not
possible to detect whether the line and neutral are
correct connected on the A4021A.
Exchanged connection of the phase and neutral can
lead to hazardous situations, when a short--circuit in
one of the valve connections occurs. Therefore the
A4021A can only be used with fixed wiring for the
line--voltage connections. Make sure that phase and
neutral are connected as instructed in the Wiring
section.

Final checkout of the installation

Set the appliance in operation after any adjustment and
observe several complete cycles to ensure that all burner
components function correctly.
Make sure that phase and neutral are connected as
instructed in the Wiring section.
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EN2R--9023 9705R0--NE