AIR DISCHARGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIELD POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLY CONN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7⁄8″ DIA HOLE WITH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 1⁄8″ DIA KNOCKOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AND 1 3⁄8″ DIA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KNOCKOUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIELD CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUPPLY CONN

SUCTION LINE CONN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7⁄8″ DIA HOLE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LIQUID LINE CONN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A93578

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNIT SIZE

 

 

 

LIQUID TUBE

VAPOR TUBE

 

Conn Dia

 

 

 

 

Tube Dia

Conn Dia

Tube Dia

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

018, 024

 

 

3/8

 

 

 

 

3/8

 

5/8

5/8

 

030, 036

 

 

3/8

 

 

 

 

3/8

 

3/4

3/4

 

042, 048

 

 

3/8

 

 

 

 

3/8

 

7/8

7/8

 

060

 

 

3/8

 

 

 

 

3/8

 

7/8

1-1/8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tube diameters are for lengths up to 50 ft. For tubing lengths greater than 50 ft, consult your local distributor.

Fig. 2ÐRefrigerant Tube Dimensions/Connections

PISTON BODY

PISTON

PISTON RETAINER

LIQUID SERVICE

VALVE ADAPTER

FERRULE

LOCK NUT

A94030

Fig. 3ÐLiquid Service Valve Mechanical Fitting

Assembly (38YCP Model)

NOTE: A backup wrench on the hex part of the suction valve fitting is required while tightening.

The tube end must stay bottomed in the service valve during final assembly to ensure proper seating, sealing, and rigidity.

MECHANICAL FITTING REPAIR

To replace damaged ferrule or tubing, proceed as follows.

1.Attach gages to service valves.

2.Close liquid service valve and operate unit in cooling mode to pump refrigerant charge into condenser coil.

3.When suction pressure reaches 5 psig, shut unit off. Do not operate unit in a vacuum.

VALVE FITTING

FERRULE

LOCK NUT

A92120

Fig. 4ÐSuction Service Valve with Mechanical

Adapter (38YCP Model)

 

 

 

FERRULE

 

 

 

LOCK NUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TUBING

A92121

Fig. 5ÐLock Nut/Ferrule Positioning

4.Close suction service valve and recover refrigerant in tubing.

5.Back-off locknut and ferrule onto tube.

6.Remove damaged part of tubing using tubing cutter. Repeat installation procedure previously outlined using new ferrule.

7.Evacuate tubing set and indoor coil. Check for leaks.

8.Open service valves or recharge unit. Check refrigerant charge.

LOCK NUT

TUBING

MARK ON LOCK NUT

AND TUBE

A92122

Fig. 6ÐProper Marking of Valve Assembly

2

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Carrier 38AYB, 38YCB(P), 38BYB instruction manual Unit Size Liquid Tube Vapor Tube, 018 030 042 060
Page 1 Page 3

38AYB, 38BYB, 38YCB(P) specifications

Carrier, a leading name in HVAC solutions, presents its innovative line of chillers, specifically the Carrier 38YCB(P), 38AYB, and 38BYB models. These units exemplify advanced design and engineering efficiencies, making them ideal for commercial and industrial applications.

The Carrier 38YCB(P) chiller is a water-cooled screw chiller that utilizes a rotary screw compressor. It is known for its high efficiency and reliability, suited for large-scale cooling needs. The unit incorporates advanced technology that enables it to operate at optimal performance levels across a wide range of conditions. It features a microprocessor-based control system that allows for precise temperature control and monitoring, enhancing energy efficiency and system reliability.

In contrast, the Carrier 38AYB chiller is an air-cooled model that is designed with energy-saving features and low noise operation. This model is equipped with high-efficiency scroll compressors and comes with environmentally friendly refrigerants, reducing the overall carbon footprint. Its compact design allows for easy installation in space-constrained environments while still delivering exceptional performance.

The Carrier 38BYB is also an air-cooled chiller, but it stands out with its innovative design and emphasis on quiet operation. This model utilizes variable-speed technology to optimize cooling output according to demand, resulting in significant energy savings. Additionally, its state-of-the-art heat exchangers enhance thermal efficiency, ensuring the system can deliver reliable cooling even in extreme conditions.

Each of these chiller models features robust construction aimed at longevity and durability. They come equipped with corrosion-resistant materials and components that ensure a longer lifespan, minimizing maintenance costs and downtime.

Furthermore, these chillers are designed with smart connectivity options, enabling integration with building management systems for enhanced monitoring and control capabilities. This feature supports energy management initiatives, as operators can analyze performance data to optimize cooling operations.

In conclusion, Carrier’s 38YCB(P), 38AYB, and 38BYB chillers offer advanced cooling solutions suitable for various commercial and industrial applications. Their combination of efficiency, reliability, and innovative technology positions them as optimal choices for those looking to invest in sustainable and effective cooling solutions.
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