Intelesite Cell Site Facilities Controller from Sierra Monitor

Intelesite™ Cell Site Facility Control System

HVAC Control Module (HCM)

Powered by HVAC 24 VAC to insure operation if CCM fault occurs. Allows continuous air conditioner operation during site retrofit.
Installs in existing junction box immediately adjacent to the HVAC pack.
Communicates via I/O bus to CCM reducing wiring and installation costs.
Temperature sensor with set points automatically updated by CCM, double redundant HVAC control in event CCM fault or power loss.

Powered by 48 VDC site power distributed on Intelesite bus cable.
Installs adjacent to exhaust fan system, communicates via serial I/O bus link to CCM.
CCM algorithm utilizes exhaust fan for cooling when outside temperature meets preset activation levels.
Available pre-packaged 48 VDC exhaust fan sub-system includes supply air louvers, rain hoods and rodent guards.

DCM monitors site voltage to implement load shedding is required
Dry contact relays supply control instructions to external DC contactors (by others)
Permits pre-defined load shedding based upon either loss of commercial power and/or high temperature
Two additional normally open relays that can be used to trip main DC power in event of high temperature or emergency shutdown

Multiple wiring pairs need not be run from generator to site alarm systems reducing wiring costs
CCM firmware manages and groups alarms: individual, minor/major, summary

Midpoint voltage monitoring on up to 6 battery strings, deviations from prescribed limits generate alarm
Monitoring of DC plant voltage - voltage drop below a prescribed limit will generate low DC plant voltage alarm

Photoelectric smoke detector with both audible and visual alarm in addition to dry contact alarm output to CCM
CCM logic suppresses all air handling when smoke alarm is present

Senses outside temperature to provide information to CCM for management of economizer cooling

Direct replacement for thermostat/electromechanical HVAC controllers
Supports all remote module functions, upgrade easily with additional remote modules
Central display and management of data from remote modules
ProtoCessor option supports serial communications from intelligent site support elements
ProtoCessor Serial option for interface with site instrumentation including generator, fire panel, battery monitor and others
ProtoCessor option for a wide variety of Ethernet protocols and WebServer interface

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