AIREDALE R410A - Electrical System Options; Sub Fusing and Electric Heating; Dual Power Supply and Ancillary Features

Sub Fusing
The electrical mains supply for the system’s outdoor unit is supplied via the indoor unit.
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Electric Heating
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Electric Heating Thyristor Control
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Dual Power Supply
The SmartCool range shall be designed with dual power supply capability, so that in the event of a power failure the
supply can be switched from utility to an alternative power supply (such as second utility or generator).
A dual power supply changeover switch shall be provided to enable continuous power to the SmartCool in order to
reduce unit downtime and therefore loss of cooling to a minimum.
For the dual power supply feature to operate effectively the two incoming power supplies must have the same voltage
and frequency.
During changeover of power there is an interval of ~180ms with no power. For critical applications a power backup
module can be added to maintain power to the unit controls, allowing for immediate reinstatement of cooling following
changeover.
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display.
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be drawn from when both power supplies are active.
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unit’s display.
Ultracap UPS
The ultracap module is an external backup device for the controller. The module guarantees temporary power to the
controller in the event of power failures and allows for enough time to keep the controller running with time to change
power supplies. The module is made using Ultracap storage capacitors (EDLC = Electric Double Layer Capacitor),
which are recharged independently by the module.
These ensure reliability in terms of much longer component life than a module made with lead batteries: the life of the
Ultracap module is at least 10 years.
Energy Manager
Analysis of system energy consumption can be monitored via a dedicated LCD display. Unit parameters can be adjusted
via the unit microprocessor control to affect energy usage in line with the system need.
Phase Rotation Protection
A phase sequence relay shall be available for units containing 3 phase scroll compressors, to prevent possible damage
by running the compressor in the wrong direction.
SmartCool™ 16 - 60
Precision Air Conditioning
18
Introduction
SmartCool Technical Manual 7525371 V1.2.0_03_2013