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AFFINITY SINGLE STAGE HYDRONIC INSTALLATION MANUAL
The Aurora Base Control System
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 Control Features
Microprocessor Compressor Control
Advanced Microprocessor Features
Base Hot Water Generator
Operation
Advanced Hot Water Generator
Control
Base Loop Pump Control
Advanced Speed Pump Control
Compressor Monitoring
Smart Grid/Utility Input
Home Automation Alarm Input
HAN/Smart Grid Com
(AWL and Portal) Kit
Description
Microprocessor control of compressor for timings with FP1, HP,
LP, Condensate, assignable Acc relay
Smart Grid, Home Automation Alarm Inputs, and Accessory2
Relay (HRV/ERV)
Compressor Contactor powers Hot Water Generator Pump with
inline circuit breaker and thermostat limit.
Microprocessor and separate power relay for Hot Water
Generator Pump with digital temperature monitoring and
multiple HWG setpoint selection.
Compressor Contactor powers Loop Pump with inline circuit
breaker and no loop pump linking capability.
Microprocessor and separate power relay for loop pump and
inline circuit breakers and loop pump linking.
Control monitors compressor starts for high current, missing leg
etc.
Allows simple input to externally enable of occupied/
unoccupied mode for basic utility time of use programs.
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.
Allows direct communication of the Aurora to Smart Meters,
Home Automation Network and Internet.
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
linking, 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.
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Aurora 'Base'
Aurora 'Advanced'
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Dry Contact x1
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Dry Contactx2
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Optional AWL
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Troubleshooting
