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Gemini™
38AH

Split-System
Air-Cooled Condensing Units

70 to 457 Nominal kW
20 to 130 Nominal Tons

Gemini™ 38 Series outdoor condensing units feature two independent refrigerant circuits (all sizes) with single circuit as a factory option on 40 to 80 ton units. Each unit its own highly efficient semi-hermetic compressor(s). All units are factory-wired and easily connected by refrigerant lines and control wiring to the matching Carrier indoor air-handling units. Various combinations of condensing units with air handlers provide packages to cover a wide range of marine & offshore cooling solutions. Multiple coil and cabinet construction options make these condensing units an excellent choice for exposed deck or platform applications.

Performance Features

  • 38AH024-034 system EERs up to 10.2 and IPLV up to 10.3.
  • Condensing unit EERs up to 11.7 and IPLV up to 13.7.
  • Copper tube/copper fin condenser coils with mechanically bonded plate fins and subcooling circuits.
  • Semi-hermetic reciprocating compressors.
  • Crankcase heater.
  • Compressor with spring isolators with automatically reversible oil pump and unloading for superior part-load performance.
  • 38AH024-034 system performance certified in accordance with ARI standard 360/365; unit performance certified in accordance with ARI standard 365.

Reliability Features

  • Galvanized steel cabinet, bonderized and finished with baked enamel, can be further enhanced with epoxy top coating.
  • Optional SS316 panel construction for cabinet.
  • High and low-pressure safety switches.
  • Anti-short cycling timer for compressor protection.
  • Compressor overload protection.
  • Oil pressure switches on each compressor.
  • 24-volt external controls including transformer.
  • Optionally available to meet NFPA 70 Class I, Division 2 hazardous location requirements.

Maintenance Features

  • Equipped with reciprocating serviceable, semi-hermetic compressor with service valves.
  • Hot gas bypass stubs.
  • Oil-level sight glass, filter driers, liquid line solenoid valve.
  • Hinged access panel accessibility to compressor and control box Compressor suction and discharge service valves.

Installation Features

  • Shipped with nitrogen holding charge.
  • On-the-ground or rooftop installation.
  • 24V control circuit transformer permits quick, easy wiring of thermostats.

Standard Warranty

  • One-year warranty.
  • One-year compressor.
  • Extended warranty packages available.

Factory-Installed Options

  • Enviro-Shield™ coil protection options include:
    • Copper fins:
      • Non-coated
      • E-coated
    • Aluminum fins:
      • Non-coated
      • Pre-coated
      • E-coated
  • Variable air volume (VAV) option (electric unloaders, control box modifications for connecting field-installed VAV controller accessory, and suction accumulators)
  • Single-circuit (38AH044-84 units)
  • Non-fused disconnect

Field-Installed Accessories

  • Gauge panel package
  • Motormaster® low ambient temperature control
  • Pressure/electric compressor unloader package
  • Variable air volume (VAV) controller
  • PremierLink™ controls
  • Hot gas bypass kit
  • Oil-level sight glass
  • Filter driers
  • Liquid line solenoid valve
  • Relay package
  • Security grilles
  • Hail guards
  • Sound reduction kit
  • Suction line accumulators

Refrigerant Charge, Connection Sizes, Weights

Size Capacity
(Tons)		 Typical refrigerant operating charge
(lbs)		 Connect (sweat)
(in OD)		 Total operating weight
(lbs)
Suction Liquid HGBP AL Coil CU Coil
024 20 40 1-3/8 5/8 5/8 1760 1923
028 25 40 1-3/8 5/8 5/8 1820 1982
034 30 50 1-3/8 5/8 5/8 1880 2097
044 40 62 2-1/8 7/8 3/8 3259 3547
054 50 72 2-1/8 7/8 5/8 3309 3597
064 60 88 2-1/8 7/8 5/8 3565 3998
074 70 104 2-1/8 7/8 5/8 3812 4229
084 80 130 2-1/8 7/8 5/8 4057 4730
094 90 148 2-1/8 7/8 5/8 5088 5813
104 100 135 2-1/8 7/8 5/8 5435 6160
124 120 176 2-5/8 1-1/8 5/8 7260 8126
134 130 192 2-5/8 1-1/8 5/8 7507 8357

Ratings based on 45°F SST and 95°F entering air temperature and 60Hz power supply.

Dimensions

Size Dimensions
(ft-in)
Length Height Width
024 10' 7-13/16" 4' 7-5/8" 5' 8-9/16"
028 10' 7-13/16" 4' 7-5/8" 5' 8-9/16"
034 10' 7-13/16" 4' 7-5/8" 5' 8-9/16"
044 8' 3-9/16" 6' 7-1/4" 7' 4-11/16"
054 8' 3-9/16" 6' 7-1/4" 7' 4-11/16"
064 8' 3-9/16" 6' 7-1/4" 7' 4-11/16"
074 10' 3-1/4" 7' 3-3/8" 7' 4-11/16"
084 10' 3-1/4" 7' 3-3/8" 7' 4-11/16"
094 11' 2-1/2" 7' 11-9/16" 7' 8"
104 11' 2-1/2" 7' 11-9/16" 7' 8"
124 18' 6-3/8" 6' 7-1/4" 7' 4-11/16"
134 18' 6-3/8" 6' 7-1/4" 7' 4-11/16"

Electrical Data (Dual Circuit)

Size 208/230 460 575
MCA MOCP MCA MOCP MCA MOCP
024 100.5 125 50.2 60 42.1 50
028 110.2 150 55.8 70 47.1 60
034 135.2 175 65.7 90 53.3 70
044 177.0 225 90.1 110 78.4 90
054 204.3 250 101.3 125 88 100
064 246 350 114.3 150 100.6 110
074 327.2 450 147.4 200 132.2 175
084 368.2 500 166.0 225 148.9 200
094 396.0 500 182.0 225 160.9 200
104 396.8 450 195.1 225 168 200
124A 246.9 350 114.3 150 100.6 125
124B 246.9 350 114.3 150 100.6 125
134A 246.9 350 114.3 150 100.6 125
134B 327.2 450 147.4 200 132.2 175

Sizes 124 and 134 consist of 2 components.
MCA = Minimum Circuit Amps
MOCP = Maximum Overcurrent Protection

Performance Features

  • 38AH024-034 system EERs up to 10.2 and IPLV up to 10.3.
  • Condensing unit EERs up to 11.7 and IPLV up to 13.7.
  • Copper tube/copper fin condenser coils with mechanically bonded plate fins and subcooling circuits.
  • Semi-hermetic reciprocating compressors.
  • Crankcase heater.
  • Compressor with spring isolators with automatically reversible oil pump and unloading for superior part-load performance.
  • 38AH024-034 system performance certified in accordance with ARI standard 360/365; unit performance certified in accordance with ARI standard 365.

Reliability Features

  • Galvanized steel cabinet, bonderized and finished with baked enamel, can be further enhanced with epoxy top coating.
  • Optional SS316 panel construction for cabinet.
  • High and low-pressure safety switches.
  • Anti-short cycling timer for compressor protection.
  • Compressor overload protection.
  • Oil pressure switches on each compressor.
  • 24-volt external controls including transformer.
  • Optionally available to meet NFPA 70 Class I, Division 2 hazardous location requirements.

Maintenance Features

  • Equipped with reciprocating serviceable, semi-hermetic compressor with service valves.
  • Hot gas bypass stubs.
  • Oil-level sight glass, filter driers, liquid line solenoid valve.
  • Hinged access panel accessibility to compressor and control box Compressor suction and discharge service valves.

Installation Features

  • Shipped with nitrogen holding charge.
  • On-the-ground or rooftop installation.
  • 24V control circuit transformer permits quick, easy wiring of thermostats.

Standard Warranty

  • One-year warranty.
  • One-year compressor.
  • Extended warranty packages available.

Factory-Installed Options

  • Enviro-Shield™ coil protection options include:
    • Copper fins:
      • Non-coated
      • E-coated
    • Aluminum fins:
      • Non-coated
      • Pre-coated
      • E-coated
  • Variable air volume (VAV) option (electric unloaders, control box modifications for connecting field-installed VAV controller accessory, and suction accumulators)
  • Single-circuit (38AH044-84 units)
  • Non-fused disconnect

Field-Installed Accessories

  • Gauge panel package
  • Motormaster® low ambient temperature control
  • Pressure/electric compressor unloader package
  • Variable air volume (VAV) controller
  • PremierLink™ controls
  • Hot gas bypass kit
  • Oil-level sight glass
  • Filter driers
  • Liquid line solenoid valve
  • Relay package
  • Security grilles
  • Hail guards
  • Sound reduction kit
  • Suction line accumulators

Refrigerant Charge, Connection Sizes, Weights

Size Capacity
(Tons)		 Typical refrigerant operating charge
(lbs)		 Connect (sweat)
(in OD)		 Total operating weight
(lbs)
Suction Liquid HGBP AL Coil CU Coil
024 20 40 1-3/8 5/8 5/8 1760 1923
028 25 40 1-3/8 5/8 5/8 1820 1982
034 30 50 1-3/8 5/8 5/8 1880 2097
044 40 62 2-1/8 7/8 3/8 3259 3547
054 50 72 2-1/8 7/8 5/8 3309 3597
064 60 88 2-1/8 7/8 5/8 3565 3998
074 70 104 2-1/8 7/8 5/8 3812 4229
084 80 130 2-1/8 7/8 5/8 4057 4730
094 90 148 2-1/8 7/8 5/8 5088 5813
104 100 135 2-1/8 7/8 5/8 5435 6160
124 120 176 2-5/8 1-1/8 5/8 7260 8126
134 130 192 2-5/8 1-1/8 5/8 7507 8357

Ratings based on 45°F SST and 95°F entering air temperature and 60Hz power supply.

Dimensions

Size Dimensions
(ft-in)
Length Height Width
024 10' 7-13/16" 4' 7-5/8" 5' 8-9/16"
028 10' 7-13/16" 4' 7-5/8" 5' 8-9/16"
034 10' 7-13/16" 4' 7-5/8" 5' 8-9/16"
044 8' 3-9/16" 6' 7-1/4" 7' 4-11/16"
054 8' 3-9/16" 6' 7-1/4" 7' 4-11/16"
064 8' 3-9/16" 6' 7-1/4" 7' 4-11/16"
074 10' 3-1/4" 7' 3-3/8" 7' 4-11/16"
084 10' 3-1/4" 7' 3-3/8" 7' 4-11/16"
094 11' 2-1/2" 7' 11-9/16" 7' 8"
104 11' 2-1/2" 7' 11-9/16" 7' 8"
124 18' 6-3/8" 6' 7-1/4" 7' 4-11/16"
134 18' 6-3/8" 6' 7-1/4" 7' 4-11/16"

Electrical Data (Dual Circuit)

Size 208/230 460 575
MCA MOCP MCA MOCP MCA MOCP
024 100.5 125 50.2 60 42.1 50
028 110.2 150 55.8 70 47.1 60
034 135.2 175 65.7 90 53.3 70
044 177.0 225 90.1 110 78.4 90
054 204.3 250 101.3 125 88 100
064 246 350 114.3 150 100.6 110
074 327.2 450 147.4 200 132.2 175
084 368.2 500 166.0 225 148.9 200
094 396.0 500 182.0 225 160.9 200
104 396.8 450 195.1 225 168 200
124A 246.9 350 114.3 150 100.6 125
124B 246.9 350 114.3 150 100.6 125
134A 246.9 350 114.3 150 100.6 125
134B 327.2 450 147.4 200 132.2 175

Sizes 124 and 134 consist of 2 components.
MCA = Minimum Circuit Amps
MOCP = Maximum Overcurrent Protection