Instinct Installation Manual

CHAPTER 9 - CTRLMAX OPERATION
46
9.4. Status Line Messages
Standby - Indicates that the INSTINCT is ready to
respond 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 water
calls are being received simultaneously. Domestic hot
water call is being satisfied first because it has priority
over central heating calls.
PriorityTimeout - Central heating and domestic hot water
calls are being received simultaneously. The domestic 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 INSTINCT is a slave in a cascade
system.
Manual Operation - The burner or circulators have
manually been enabled in the I nstaller M enu .
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
setpoint. 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
because 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.
CH Post Pump - The central heating circulator(s) is/
are running to remove heat from the INSTINCT at the
completion of a call.
DHW Post Pump - The domestic hot water circulator(s)
is/are running to remove heat from the INSTINCT 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
temperature is raised to 60°F [16°C].
Boiler Protection - The burner firing rate is being
reduced 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 INSTINCT will still respond to
calls until the pressure drops below 7.2 psi. Increase
system pressure to 14.5 psi to clear Low Water Pressure
warning
Lockout Description - The lockout which currently
has the INSTINCT shut down is displayed
CHAPTER 9