Carrier 40GXQ, 40GXC, 38GXQ, 38GXC installation instructions Field Wiring

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38/40GXC(Q)

Outdoor unit

Terminal Block

Conduit panel

G

Conduit

38GXQ-40GXQ009, 012 115-1-60 Connection Diagram

CONNECTING CABLE

OUTDOOR TO INDOOR

L

 

N

 

L

 

N

GND

S

 

L

 

N

GND

S

 

Main

 

 

Power to

 

 

 

Indoor Unit

 

 

 

Power

 

 

Indoor

Ground

Control

 

 

Power

Ground

Control

 

Supply

 

 

Unit

 

 

Supply

 

 

 

 

 

 

 

 

 

 

 

 

115-1-60

 

 

115-1-60

 

 

 

 

115-1-60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All 38GXQ 115-1-60 Outdoor Units

 

 

 

All 40GXQ 115-1-60 Indoor Units

38GXQ-40GXQ012, 018 & 024 208/230-1-60 Connection Diagram

CONNECTING CABLE

OUTDOOR TO INDOOR

L1

 

L2

L1

 

L2

GND

S

 

Main

 

Power to

 

 

 

Power

 

Indoor

Ground

Control

 

Supply

 

Unit

 

 

208/230-1-60

208/230-1-60

 

 

All 38GXQ 208/230-1-60 Outdoor Units

L1

 

L2

GND

S

Indoor Unit

 

 

 

Power

Ground

Control

 

Supply

 

 

208/230-1-60

 

 

All 40GXQ 208/230-1-60 Indoor Units

Fig. 12 ---Field Wiring

INSTALL ALL POWER, INTERCONNECTING

WIRING, AND PIPING TO INDOOR UNIT.

1.Run interconnecting piping and wiring from outdoor unit to indoor unit.

A09666

Field Wiring

Cover

2.Pass interconnecting cable through hole in wall (outside to inside).

3.Lift indoor unit into position and route piping and drain through hole in wall (inside to outside). Fit interconnecting wiring into back side of indoor unit.

4.Hang indoor unit on upper hooks of wall mounting plate (as shown in Fig. 13)

A08283

Fig. 13 ---Hanging Indoor Unit

5.Open front cover of indoor unit and remove field wiring ter- minal block cover (see Fig. 14)

Interconnecting

Cable

A08279

Fig. 14 ---Field Wiring Cover

6.Pull interconnecting wire up from back of indoor unit and position in close to the terminal block on indoor unit.

7.Push bottom of indoor unit onto mounting plate to com- plete wall mount.

8.Connect wiring from outdoor unit per connection diagram (see Fig. 12).

NOTE: Polarity of power wires must match original connection on outdoor unit.

9.Replace field wiring cover and close front cover of indoor unit.

10.Connect refrigerant piping and drain line outside of indoor unit. Refer to Fig. 10 for proper installation of flare connec- tions. Complete pipe insulation at flare connection then fasten piping and wiring to the wall as required. Com- pletely seal the hole in the wall.

8

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Contents Installation Instructions Table of ContentsParts List 38GXCQ / 40GXCQ 009, 012, 018 and 024 Parts ListSafety Considerations Connecting Power and Control CableGeneral System RequirementsDimensions Indoor Dimensions OutdoorClearances Indoor Clearances OutdoorInstall Mounting Plate Installation GuideIndoor Unit Installation Outdoor Unit Installation If piping is going through the right or left sideField Wiring Using Vacuum Pump System Vacuum and ChargeSTART-UP System ChecksIndoor Unit Outdoor UnitTroubleshooting 38GXC/GXQ 40GXC/GXQ 009-024 Diagnostic CodesCatalog No 40GX---4SI

38GXC, 38GXQ, 40GXC, 40GXQ specifications

Carrier's 40GXQ, 38GXQ, 38GXC, and 40GXC series are a testament to the brand’s commitment to innovation and excellence in HVAC technology. These units are designed to meet the diverse needs of commercial and residential applications while ensuring optimal performance, energy efficiency, and sustainability.

The 40GXQ model stands out for its advanced cooling capabilities and high efficiency. This rooftop unit employs a high-efficiency scroll compressor that enhances performance while minimizing energy consumption. With a cooling capacity ranging from 3 to 20 tons, the 40GXQ is ideal for larger spaces requiring significant cooling load management. It also features a user-friendly interface, allowing for easy adjustments and monitoring through a digital display.

The 38GXQ is particularly notable for its versatility and robust design. Featuring an integrated economizer, the 38GXQ allows for enhanced energy savings by leveraging outdoor air for free cooling when conditions permit. This model is equipped with high-efficiency filters that improve indoor air quality, making it suitable for applications in schools, offices, and healthcare facilities.

The 38GXC variant is designed for residential applications and emphasizes whisper-quiet operation without compromising performance. Its high SEER (Seasonal Energy Efficiency Ratio) rating means homeowners can enjoy substantial savings on their energy bills. The 38GXC is also equipped with Carrier's Greenspeed intelligence, which enables the system to modulate its output, maintaining comfort levels while reducing energy consumption.

The 40GXC model represents innovation in temperature control systems. With its sleek design and advanced variable-speed compressor, the 40GXC can adapt to changing conditions while maintaining efficiency and performance. This model also incorporates advanced monitoring systems that provide real-time data on performance and diagnostics, ensuring optimum efficiency throughout its lifecycle.

All these Carrier models are equipped with advanced refrigerant management systems, supporting environmentally friendly refrigerants that adhere to current environmental regulations. They not only provide effective cooling solutions but also contribute to a sustainable future, aligning with Carrier’s broader commitment to reducing carbon footprints.

In summary, the Carrier 40GXQ, 38GXQ, 38GXC, and 40GXC are engineered to deliver exceptional performance, energy efficiency, and versatility across various applications. With advanced technologies and a commitment to sustainability, these units set a high standard in the HVAC industry. Whether for commercial or residential use, these models provide reliable and efficient climate control solutions.