Status Line Messages - TriangleTube PRESTIGE Series User's Information Manual

CHAPTER 5 - ACVMAX OPERATION
5.4.

Status Line Messages

Standby - Indicates that the Prestige is ready to re-
spond when a demand is received.
CH Demand - A central heating call has been received.
DHW Demand - A domestic hot water call has been
received.
CH/DHW Demand - Central heating and domestic hot
water calls are being received simultaneously. Both calls
are being satisfied simultaneously because domestic
hot water priority has been disabled.
DHW Priority - Central heating and domestic hot wa-
ter calls are being received simultaneously. Domestic
hot water call is being satisfied first because it has prior-
ity over central heating calls.
Priority Timeout - Central heating and domestic hot
water calls are being received simultaneously. The do-
mestic hot water priority time limit has been exceeded.
Priority will now switch back and forth between central
heating and domestic hot water calls until one call is
satisfied.
External Demand - An external modulation call has
been received.
Slave Operation - The Prestige is a slave in a cascade
system.
Manual Operation - The burner or circulators have
manually been enabled in the Installer Menu.
CH Burner Delay - The burner will not fire until the call
blocking time has elapsed.
DHW Burner Delay - The burner will not fire until the
call blocking time has elapsed.
CH Setpoint Reached - The burner is not fired because
the supply/system water temperature exceeds the set-
point. The central heating circulator(s) continue(s) to
operate and the burner will fire again once the supply/
system water temperature drops below the setpoint.
DHW Setpoint Reached - The burner is not fired be-
cause the supply/system water temperature exceeds
the setpoint. The domestic circulator(s) continue(s) to
operate and the burner will fire again once the supply/
system water temperature drops below the setpoint.
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CH Post Pump - The central heating circulator(s) is/are
running to remove heat from the Prestige at the com-
pletion of a call.
DHW Post Pump - The domestic hot water circulator(s)
is/are running to remove heat from the Prestige at the
completion of a call.
Freeze Protection - The burner is fired because the
freeze protection feature has been activated. Freeze
protection will end once the supply/system water tem-
perature is raised to 60°F [16°C].
Boiler Protection - The burner firing rate is being re-
duced because of an excessive difference between the
boiler supply and return temperatures. The firing rate
will begin increasing once the temperature difference
is less than 45°F [25°C].
Low Water Pressure - The system pressure has dropped
to 10.1 psi. The Prestige will still respond to calls until
the pressure drops below 7.2 psi. Increase system pres-
sure to 14.5 psi to clear Low Water Pressure warning.
Lockout Description - The lockout which currently
has the Prestige shut down is displayed.