LEGEND

TXV — Thermostatic Expansion Valve

Factory Piping

Field Piping

NOTE: The bypass valve in this package has 5/8 in. connections and can be used directly on 30GT015- 035 units.

Fig. 1 — 30GT Piping Schematic

DISCHARGE STUB (HIDDEN)

LIQUID

STUB

Fig. 2 — 30GT Stub Locations

Install the field-supplied 1/4 in. OD tubing from the SAE connection to the TXV equalizer line. If the connection is made directly to the TXV, use the field-supplied, 3-way tee with an internal branch (install horizontally in the line with the internal branch attaching directly to the TXV). If the connection is made into the equalizer line, use the field-supplied, standard 3- way tee.

Step 2 — Dehydrate and Recharge the Cir- cuit — When piping is completed, leak test the assembly and replace the filter drier cores. Then evacuate, dehydrate, and re- charge the circuit, using approved refrigeration practices.

Step 3 — Install Control Wiring

Be sure all power to the unit is off before proceeding, and that all disconnects are open and tagged.

Follow all local codes and NEC (National Electrical Code, U.S.A.) when installing control wiring. All wire must be a min- imum of 16 AWG (American Wire Gage, U.S.A.).

Connect control wires as shown in Fig. 3. At hot gas sole- noid (HGS), connect to brown and orange wires as shown.

 

LEGEND

 

 

COM — Common

NC — Normally Closed

TC —

Temperature Controller

HGS — Hot Gas Solenoid

NO — Normally Open

U1 —

Unloader 1

Fig. 3 — 30GT Hot Gas Solenoid Wiring

2

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Carrier 38AKS014-024, 30GT015-035 installation instructions Install Control Wiring, 30GT Piping Schematic
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30GT015-035, 38AKS014-024 specifications

The Carrier 30GT015-035 and 38AKS014-024 systems represent a significant advancement in the field of HVAC technology, designed to deliver efficient and reliable heating and cooling solutions for commercial and residential applications. These units are part of Carrier's commitment to sustainability, performance, and energy efficiency.

Starting with the Carrier 30GT series, these self-contained air conditioning units are engineered for exceptional versatility. Ranging from 15 to 35 tons, they are suitable for a variety of installations, including schools, offices, and retail spaces. One of the key features of the 30GT series is its compact design, which allows for easy integration into existing structures without requiring extensive modifications. The advanced scroll compressor technology utilized in these units ensures high reliability and efficient operation, resulting in significant energy savings.

The 30GT units are also equipped with Carrier’s innovative ComfortLink II controls, which enable seamless integration with building management systems. This technology allows for precise temperature control, scheduling, and monitoring, enhancing overall system performance and user comfort. Additionally, the 30GT series features a robust coil design and optimized airflow that maximize heat exchange efficiency, leading to improved seasonal energy efficiency ratios (SEER).

On the other hand, the Carrier 38AKS014-024 series focuses on providing energy-efficient heating solutions. These packaged rooftop units range from 14 to 24 tons and incorporate advanced gas heating systems, making them ideal for mixed-use applications. The 38AKS series utilizes a direct-drive, plenum fan for enhanced airflow distribution and reduced noise levels, ensuring a comfortable indoor environment.

The 38AKS models are designed with environmental sustainability in mind, showcasing low refrigerant leakage rates and a choice of eco-friendly refrigerants. Furthermore, these units are built for durability, featuring corrosion-resistant cabinets and components, which extend the life of the equipment in various environmental conditions.

Both the Carrier 30GT and 38AKS series prioritize user-friendly operation and maintenance. Their modular design allows for easy access to internal components, simplifying servicing and reducing downtime. Moreover, the units' advanced diagnostics capabilities make troubleshooting efficient, ensuring prompt responses to any issues that may arise during operation.

In summary, Carrier's 30GT015-035 and 38AKS014-024 series embody cutting-edge HVAC technology, combining energy efficiency, user comfort, and sustainable design. These systems are poised to meet the challenges of modern climate control, providing reliable performance in a range of applications while minimizing environmental impact.
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