26
AFFINITY DUAL CAPACITY HYDRONIC INSTALLATION MANUAL
The Aurora Base Control System cont.
Smart Grid-On Peak (SG) Input
The 'On Peak' input was designed to allow utilities to
utilize simple radio controlled switches to control the On
Electric Peak behavior of the 5 and 7 Series Geothermal
Heat Pumps. With a closed contact signal, this input will
limit the operation and thus the power consumption of the
unit by one of the below selections. The AID Tool will allow
configuration of this input for the action of:
• No Action
• Disable compressor operation until removed
• Go to On Peak thermostat settings until removed
[Requires Com T-Stat] (Future Release)
• Compressor limited to 50% or low cap until removed
[dual capacity or variable speed only] (Future Release)
• Disable compressor operation for 1/2 hr (can be
removed immediately) (Future Release)
Then Flash Code 7 on the Green LED for the 'On Peak' mode.
And On Peak will display on communicating thermostats.
Monitoring Sensor Kits
Energy Monitoring
(Standard Sensor Kit)
The Energy Monitoring Kit includes four current
transducers (source pump, load pump, auxiliary heat 1 and
auxiliary heat 2) added to the existing four compressor
sensors for compressor A and compressor B so that the
complete power usage of the heat pump can be measured.
The AID Tool provides a line voltage calibration procedure
to improve the accuracy, and a power adjustment setting
that allows the compressor power to be adjusted to match
the units line voltage using the provided tables. This
information can be displayed on the AID Tool.
Refrigerant Monitoring
The Refrigerant Monitoring Kit includes two pressure
transducers, and three temperature sensors, heating liquid
line, suction temperature and existing cooling liquid line
(FP1). These sensors allow the measurement of discharge
and suction pressures, suction and liquid line temperatures
as well as superheat and subcooling. This information will
only be displayed on the AID Tool.
Performance Monitoring
The Performance Monitoring Kit includes three
temperature sensors, entering and leaving source, and
leaving load water.
