528195-YTG-I-0513
Johnson Controls Unitary Products 11
• DIRTY FILTER SWITCH – This kit includes a differential
pressure switch that energizes the fault light on the unit
thermostat, indicating that there is an abnormally high-
pressure drop across the filters.
• BREAKER – An HACR breaker can be factory installed
on heat pumps or heat pumps with electric heat.
• DISCONNECT SWITCH - A disconnect can be factory
installed on a cooling only units sized for the largest
electric heat available.
• SMOKE DETECTOR – A smoke detector can be factory
mounted and wired in the supply and/or return air
compartments.
OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE
• ROOF CURB - 14” and 8” high, full perimeter knockdown
curb, with hinged design for quick assembly.
• BAROMETRIC RELIEF DAMPER – (Unit mounted –
Downflow, Duct Mounted – Horizontal) – Contains a rain
hood, air inlet screen, exhaust damper and mounting
hardware. Used to relieve internal air pressure through
the unit during economizer operation.
• ECONOMIZER (Downflow and Horizontal flow)
• POWER EXHAUST – (Unit mount – Downflow, Duct
mount – Horizontal flow)
• DUAL ENTHALPY KIT - Provides a second input to
economizer to monitor return air.
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