ACV WaterMaster 45 - Status Screens and Messages

Low Water
Water level has fallen below an
acceptable operating level.
Increase pressure to normal range.
If problem persists,
call for service
E37
Lockout reference code. Refer to “In case of Prob-
lem...” on page 8 for more information.
Body text. The rst sentence describes the lockout,
the second sentence gives a possible cure, and the
third tells how to reset the lockout.
Lockout message. Refer to “In case of Problem...”
on page 8 for more information.
Stand-by
84°C
61°C
Target = --
WaterMaster
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WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D
USER’S GUIDE
LOCKOUT SCREEN
If a problem occurs, the Lockout screen replaces the Home screen. The backlight also remains on as long
as the problem is not solved. Pressing any arrow button will return to the Home screen.
Using the code located in the right bottom corner of the screen, troubleshoot the problem, either with
the table located in paragraph “In case of Problem...” on page 8, or with the Lockout code table in the
Installer’s Handbook (for the installer only).
STAND-BY SCREEN
This screen is displayed at start-up. It indicates that the WaterMaster is ready to respond when a demand
is received.
STATUS MESSAGES
Stand-by Indicates that the WaterMaster is ready to respond when a demand is received.
DHW Demand A domestic hot water call has been received.
Manual Operation The burner or circulators have manually been enabled in the Installer Menu.
DHW Burner Delay The burner will not re until the call blocking time has elapsed.
DHW Setpoint Reached The burner is not red because the supply/system water temperature exceeds
the setpoint. The domestic circulator continues to operate and the burner will
re again once the supply/system water temperature drops below the setpoint.
DHW Post Pump The domestic hot water circulator is running to remove heat from the Water-
Master at the completion of a call.
Freeze Protection The burner is red because the freeze protection feature has been activated.
Freeze protection will end once the supply/system water temperature is raised
to16°C.
Boiler Protection The burner ring rate is being reduced because of an excessive dierence be-
tween the appliance supply and return temperatures. The ring rate will begin
increasing once the temperature dierence is less than25°C.
Lockout Description The lockout which currently has the WaterMaster shut down is displayed