Lennox Energence LCH User Manual

Energence
®

OPTIONS / ACCESSORIES

Global Control
• The unit controller communicates with a DDC system
with one global sensor (enthalpy or sensible)
• Determines whether outside air is suitable for free
cooling on all units connected to the control system
• 
Factory or Field Installed
Single Enthalpy Temperature Control (Not for Title 24)
• Outdoor air enthalpy sensor enables Economizer if the
outdoor enthalpy is less than the setpoint of the control
Differential Enthalpy Control (Not for Title 24)
• Order two Single Enthalpy Controls
• 
• One is installed in the outdoor air section
• Allows the economizer control to select between
outdoor air or return air, whichever has lower enthalpy
Field Installed
Outdoor Air CFM Control
• Maintains constant outdoor air volume levels on the

• 
section, the Prodigy
®
2.0 unit controller changes the
economizer position to help minimize the effect of
supply fan speed changes on outdoor air volume levels
• 
testing
NOTE
(CO Sensor) or Building Pressure Control.
Building Pressure Control
• Maintains constant building pressure level
• Includes a static pressure transducer and outdoor static
pressure assembly
• Using differential pressure information between the
outdoor air and the building air, the Prodigy
®
2.0 unit
controller changes the economizer position to help
maintain a constant building pressure
NOTE
(CO Sensor) or Outdoor Air CFM Control.
EXHAUST
Factory or Field Installed
Power Exhaust Fan
• 
with economizer option
• Provides exhaust air pressure relief
• Interlocked to run when supply air blower is operating,
• Fan runs when outdoor air dampers are 50% open
(adjustable)
• Motor is overload protected
• Fan is 508 mm diameter
• Five blades
• One 0.25 kW motor
NOTE
Relief Dampers
Field Installed

• 
applications requiring an economizer
• Allows relief of excess air
• Aluminum blade dampers prevent blow back and

• Field installed in return air duct
• Bird screen and hood furnished
NOTE - Requires Horizontal Discharge Kit
OUTDOOR AIR
Factory or Field Installed
Outdoor Air Damper
• 
• Linked mechanical dampers
• 
• Installs in unit
• Includes outdoor air hood
• Automatic model features fully modulating spring return
damper motor with plug-in connection
• Manual model features parallel blade, gear-driven


Lennox Energence LCH Specifications

General

Brand	Lennox
Model	Energence LCH
Category	Air Conditioner
Language	English