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RT-SVX063E-EN
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Primary Heat Enable is a building automation interface
point used to limit all forms of primary heat installed in
the equipment. The 0-100% value limits the amount of
heating capacity.
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Demand Limit is a function with building automation
interface points used to limit power consumption of
both heating and cooling capacities installed in the
equipment. Demand Limit does not apply to
economizer cooling, gas heat, external heat nor hot gas
reheat.
Demand Limit Request BAS enables and disables the
demand limit function. When set to Limit, the Demand
Limit Setpoint value (0-100%) is applied to the control
capacity calculation. The power consumption result
will depend on number of heating and cooling stages
installed and how each stage maps to the capacity
calculation (0-100%).
Condensate Overflow
The Condensate Drain Pan Level Sensing function
monitors an optional water level switch(s) mounted to
the evaporator(s) condensate pan. If the drain becomes
obstructed, the condensate level will begin to rise and
the Condensate Overflow input will be activated.
When a high condensate level is detected, the unit
shuts down and a non-latching diagnostic is generated.
A 72 hour timer is started at this point. If the
condensate overflow input returns to normal, the unit
is allowed to restart. If a second condensate high level
is detected during the 72 hour timer, the unit will
shutdown but restart if the condition returns to normal.
A third event, within the 72 hour timer, will generate a
latching Condensate Overflow Lockout diagnostic and
will require a manual reset.
Filter Status
Filter status is provided by differential pressure
monitoring across individual filters in the equipment.
This is in the form of an analog signal to the Symbio
controller which represents pressure drop. Monitoring
is available for individual filters installed in the unit.
The customer can monitor filter differential pressure
for the purpose of filter maintenance.
No manual calibration is necessary as the transducers
are factory calibrated.
N
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e:: This function does not provide a diagnostic or
other form of user notification.
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Summary of Contents for IntelliPak RA 20
Page 139: ...RT SVX063E EN 139 N No ot te es s...
