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Gemini
40RU/38AU

40RU Packaged Air Handler
38AU Air Cooled Condenser
DX Cooling only
with Puron® Refrigerant (R-410A)

6.0 to 20.0 nominal tons

The Gemini® 40RU and 38AU series indoor air handlers and outdoor units provide a wide variety of options for your HVAC application needs. These units are designed for long dependable operation whether it’s a rooftop or on-the-ground installation. All Gemini® 38AU Condensing Units and 40RU Fan Coils use environmentally sound Puron® refrigerant. Together, they create a reliable split system that provides easy solutions to a wide range of commercial HVAC needs.

40RU Features

Performance Features

  • Uses field-supplied Puron® (R-410A) refrigerant and chilled water
  • Non-corroding drain pans
  • Cleanable insulation treated with an anti-microbial agent
  • Fan motor options allowing more complex new or replacement air distribution systems
  • Powerful belt-driven forward curved centrifugal fans
  • Durable die-formed galvanized steel casings
  • 40RUA direct expansion cooling coils are rated in accordance with ARI standard 340/360 when paired with Carrier 38A cooling only condensing units

Reliability Features

  • Precision thermostatic expansion valve (TXV) with removable power element on each circuit
  • Motor overload protection of internal automatic reset thermal overload protection
  • Designed and constructed in accordance with UL 1995 standard
  • Listed with ETL and ETL, Canada

Installation Features

  • Vertical or horizontal installation without modification
  • Simple voltage conversion on tri-voltage 208/230/460-3-60 motors
  • Front or bottom return air intake
  • Two sloped condensate pans for horizontal or vertical applications
  • Simple condensate drain pan adjustment for right-hand or left-hand operation
  • Easy-access 24-volt control terminal block for easy thermostat wiring
  • Single point electrical power connection for fan motor and accessory electrical heaters

Maintenance Features

  • Removable side panel allows access to virtually all components
  • Permanently lubricated, sealed motor bearings
  • Easy filter replacement with slide-out retainer

38AU Features

Performance Features

  • 38AUZ single circuit cooling only System EERs from 11.5
  • 38AUD two cooling stages with EERs from 11.0 to 11.2
  • ASHRAE 90.1 Efficiency Compliant
  • Standard crankcase heater
  • Compressor vibration isolation
  • Low ambient temperature control
  • Unit performance certified in accordance with ARI standard 340/360

Reliability Features

  • High and low-pressure switches
  • Anti-short cycling protection
  • Prepainted, galvanized steel cabinets that passes 500-hour salt-spray test
  • Compressor overload protection
  • Scroll compressor
  • E-Coat coil protection
  • UL, UL, Canada or ETL approved

Installation Features

  • Shipped with Puron (R-410A) refrigerant partial charge
  • Single-piece design
  • Perimeter base rail with forklift slots and lifting holes facilitates rigging
  • Suitable for mounting on the ground or the rooftop
  • 24V control circuit transformer permits quick, easy wiring of thermostats

Maintenance Features

  • Comfort Alert™ diagnostic board
  • Powered and non-powered 115-v convenience outlet
  • Compressor access panel with easy grip handle
  • Easy starting, no-strip screw feature
  • Non-fused disconnect switch

40AU Options

Field-Installed Accessories

  • Outside air enthalpy controlled economizer
  • Electric heater
  • Hot water heating coils
  • Steam heating coil
  • Programmable thermostats
  • CO2 sensors
  • Airflow sensor switch
  • Painted and non-painted options:
    • Discharge plenum
    • Return air grille
    • Floor mount subbase
  • Condensate overflow switch assembly
  • Overhead suspension package

38AU Options

Factory-Installed Options

  • Non-fused Disconnect
  • Premium, E-coated condenser coil
  • Convenience outlet (powered)
  • Low ambient temperature Motormaster® control
  • Louvered hail guards
  • Modulating unloading device (sizes 12, 16, and 25)

Field-Installed Accessories

  • Low ambient temperature Motormaster® control
  • Louvered hail guard
  • Programmable thermostats

40RU Features

Performance Features

  • Uses field-supplied Puron® (R-410A) refrigerant and chilled water
  • Non-corroding drain pans
  • Cleanable insulation treated with an anti-microbial agent
  • Fan motor options allowing more complex new or replacement air distribution systems
  • Powerful belt-driven forward curved centrifugal fans
  • Durable die-formed galvanized steel casings
  • 40RUA direct expansion cooling coils are rated in accordance with ARI standard 340/360 when paired with Carrier 38A cooling only condensing units

Reliability Features

  • Precision thermostatic expansion valve (TXV) with removable power element on each circuit
  • Motor overload protection of internal automatic reset thermal overload protection
  • Designed and constructed in accordance with UL 1995 standard
  • Listed with ETL and ETL, Canada

Installation Features

  • Vertical or horizontal installation without modification
  • Simple voltage conversion on tri-voltage 208/230/460-3-60 motors
  • Front or bottom return air intake
  • Two sloped condensate pans for horizontal or vertical applications
  • Simple condensate drain pan adjustment for right-hand or left-hand operation
  • Easy-access 24-volt control terminal block for easy thermostat wiring
  • Single point electrical power connection for fan motor and accessory electrical heaters

Maintenance Features

  • Removable side panel allows access to virtually all components
  • Permanently lubricated, sealed motor bearings
  • Easy filter replacement with slide-out retainer

38AU Features

Performance Features

  • 38AUZ single circuit cooling only System EERs from 11.5
  • 38AUD two cooling stages with EERs from 11.0 to 11.2
  • ASHRAE 90.1 Efficiency Compliant
  • Standard crankcase heater
  • Compressor vibration isolation
  • Low ambient temperature control
  • Unit performance certified in accordance with ARI standard 340/360

Reliability Features

  • High and low-pressure switches
  • Anti-short cycling protection
  • Prepainted, galvanized steel cabinets that passes 500-hour salt-spray test
  • Compressor overload protection
  • Scroll compressor
  • E-Coat coil protection
  • UL, UL, Canada or ETL approved

Installation Features

  • Shipped with Puron (R-410A) refrigerant partial charge
  • Single-piece design
  • Perimeter base rail with forklift slots and lifting holes facilitates rigging
  • Suitable for mounting on the ground or the rooftop
  • 24V control circuit transformer permits quick, easy wiring of thermostats

Maintenance Features

  • Comfort Alert™ diagnostic board
  • Powered and non-powered 115-v convenience outlet
  • Compressor access panel with easy grip handle
  • Easy starting, no-strip screw feature
  • Non-fused disconnect switch

40AU Options

Field-Installed Accessories

  • Outside air enthalpy controlled economizer
  • Electric heater
  • Hot water heating coils
  • Steam heating coil
  • Programmable thermostats
  • CO2 sensors
  • Airflow sensor switch
  • Painted and non-painted options:
    • Discharge plenum
    • Return air grille
    • Floor mount subbase
  • Condensate overflow switch assembly
  • Overhead suspension package

38AU Options

Factory-Installed Options

  • Non-fused Disconnect
  • Premium, E-coated condenser coil
  • Convenience outlet (powered)
  • Low ambient temperature Motormaster® control
  • Louvered hail guards
  • Modulating unloading device (sizes 12, 16, and 25)

Field-Installed Accessories

  • Low ambient temperature Motormaster® control
  • Louvered hail guard
  • Programmable thermostats