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The Aurora™ Control System
AFFINITY & AFFINITY ADVANCED SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL
Aurora Control Features
Description
Aurora ‘Base’
Aurora ‘Advanced’
Microprocessor Compressor Control
Microprocessor control of compressor for timings with FP1, HP, LP,
Condensate, assignable Acc relay
•
•
Advanced Microprocessor Features
Smart Grid, Home Automation Alarm Inputs, and Accessory2 Relay
(HRV/ERV)
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•
Base Hot Water Generator Operation
Compressor Contactor powers Hot Water Generator Pump with inline
circuit breaker and thermostat limit.
•
See below
Advanced Hot Water Generator
Control
Microprocessor and separate power relay for Hot Water Generator
Pump with digital temperature monitoring and multiple HWG
setpoint selection.
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•
Base Loop Pump Control
Compressor Contactor powers Loop Pump with inline circuit breaker
and no loop pump slaving capability.
•
See below
Advanced Speed Pump Control
Microprocessor and separate power relay for loop pump and inline
circuit breakers and loop pump slaving.
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•
Variable Speed Pump
Capable of setup, monitoring and controlling a variable speed
flow center.
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•
Compressor Monitoring
Control monitors compressor starts for high current, missing leg etc.
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•
Active Dehumidification
Coil temperature is monitored and air flow is reduced for maximum
latent moisture removal.
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Affinity Series
Variable Speed Only
Smart Grid/Utility Input
Allows simple input to externally enable of occupied/unoccupied
mode for basic utility time of use programs.
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Dry Contact x1
Home Automation Alarm Input
Allows simple input to signal sump, security, or smoke/CO sensor
alarms from other home automation or security systems. The two
inputs can be field configured to a number of options and logic.
-
Dry Contact x2
IntelliZone2
®
Compatibility
IntelliZone requires traditional TStat inputs. IntelliZone2
communicates to the heat pump via the AXB board.
With Optional AXB kit
and IntelliZone2
Optional IntelliZone2
IntelliZone2
●
24V Compatibility
Communicates to the heat pump via 24VAC (AXB not required)
●
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Aurora ‘Base’ Control
The Aurora ‘Base’ Control (ABC)
System is a complete residential
and commercial comfort
system that brings all aspects
of the HVAC system into one
cohesive module network. The
ABC features microprocessor
control and HP, LP, condensate
and freeze detection, over/
under voltage faults, along with
communicating thermostat capability for complete fault detection
text at the thermostat.
Aurora uses the Modbus communication protocol to communicate
between modules. Each module contains the logic to control all
features that are connected to the module. The Aurora ‘Base’
Control (ABC) has two Modbus channels. The first channel is
configured as a master for connecting to devices such as a
communicating thermostat, expansion board, or other slave
devices. The second channel is configured as a slave for
connecting the Aurora Interface Diagnostics Tool (AID Tool).
Aurora ‘Advanced’ Control
The Aurora ‘Advanced’ Control
expands on the capability of the
Aurora ‘Base’ Control (ABC)
System by adding the Aurora
Expansion Board (AXB). The
additional features include
compressor current monitoring,
loop pump slaving, intelligent hot
water generator control, variable
speed pump capability, and
also allows for optional energy,
refrigeration, and performance
monitoring factory installed add-on
sensor kits. The AXB also features
a second field configurable accessory relay, and two home
automation inputs that are AID configurable for different types of
alarms from sump pumps to home security. The Smart Grid input
is AID configurable with many options to react to Utility controlled
relay operation for ON Peak optimization. The AXB also expands
the communication capability for IntelliZone2 ready operation as
well as other expansion with the ClimateTalk protocol.