NOTE: Avoid contact between tubing and structure

OUTDOOR WALL INDOOR WALL

CAULK

LIQUID TUBE

VAPOR TUBE

INSULATION

THROUGH THE WALL

JOIST

HANGER STRAP

(AROUND VAPOR

TUBE ONLY)INSULATION VAPOR TUBE

1MIN.

LIQUID TUBE

SUSPENSION

A94028

Fig. 2—Connecting Tubing Installation

INSTALLATION

Step 1—Check Equipment and Job Site

UNPACK UNIT

Move to final location. Remove carton, taking care not to damage unit.

INSPECT EQUIPMENT

File claim with shipping company prior to installation if shipment is damaged or incomplete. Locate unit rating plate on unit service panel. It contains information needed to properly install unit. Check rating plate to be sure unit matches job specifications.

Step 2—Install On A Solid, Level Mounting Pad

If conditions or local codes require the unit be attached to pad, tiedown bolts should be used and fastened through knockouts provided in unit base pan. Refer to unit mounting pattern in Fig. 3 to determine base pan size and knockout hole location.

On rooftop applications, mount on level platform or frame. Place unit above a load bearing wall and isolate unit and tubing set from structure. Arrange supporting members to adequately support unit and minimize transmission of vibration to building. Consult local codes governing rooftop applications.

Roof mounted units exposed to winds above 5 mph may require wind baffles to achieve adequate defrost. Consult Low Ambient Guideline for wind baffle construction.

NOTE: Unit must be level to within ± 2° (± 3/8 in./ft) per compressor manufacturer specifications.

Step 3—Clearance Requirements

When installing, allow sufficient space for airflow clearance, wiring, refrigerant piping, and service. Allow 30-in. clearance to service end of unit and 48 in. above unit. For proper airflow, a 6-in. clearance on 1 side of unit and 12 in. on all remaining sides must be maintained. Maintain a distance of 24 in. between units. Position so water, snow, or ice from roof or eaves cannot fall directly on unit.

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38D. (9.53) TIEDOWN

 

 

 

 

 

 

A

 

 

 

 

KNOCKOUTS (2) PLACES

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

A94199

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Dimensions (In.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNIT

 

MINIMUM

TIEDOWN KNOCKOUT LOCATIONS

MOUNTING-PAD

 

 

 

 

 

 

 

 

SIZE

A

 

 

B

 

 

C

 

DIMENSIONS

 

 

 

 

 

 

 

 

 

 

 

 

018-024

 

22-1/2 X 22-1/2

3-11/16

 

 

18-1/8

 

14-3/8

030-060

 

30 X 30

6-1/2

 

 

23-1/2

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 3—Mounting Unit to Pad

On rooftop applications, locate unit at least 6 in. above roof surface.

Step 4—Operating Ambient

The minimum outdoor operating ambient in cooling mode is 55°F, and the maximum outdoor operating ambient in cooling mode is 125°F. The maximum outdoor operating ambient in heating mode is 66°F.

Step 5—Elevate Unit

Accumulation of water and ice in base pan may cause equipment damage.

In areas where prolonged freezing temperatures are encountered, elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage of unit.

Step 6—Remove Indoor AccuRater® Piston and Install

TXV

For proper unit operation and reliability, units must be installed with field supplied hard shutoff TXV. Do not install with evaporator coils having capillary tube metering devices or pistons.

For TXV kit part number and charging instructions, refer to TXV label in outdoor unit. If indoor unit (fan coil) comes factory equipped with a bi-flow hard shutoff TXV, no TXV change is required.

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Carrier 38BYC, 38BYG instruction manual Dimensions, Installation, Txv

38BYG, 38BYC specifications

The Carrier 38BYC and 38BYG are part of Carrier's innovative range of commercial HVAC systems, specifically engineered to offer superior cooling and heating solutions. With their modular design, these units cater to a variety of commercial applications, providing energy-efficient climate control that meets the diverse needs of businesses.

One of the standout features of the Carrier 38BYC and 38BYG is the incorporation of advanced inverter technology. This technology allows the system to adjust its compressor speed in real time, optimizing energy consumption while ensuring consistent indoor comfort. This capability significantly reduces operational costs compared to traditional HVAC systems that operate at fixed speeds.

Both models boast enhanced cooling and heating capabilities with high energy efficiency ratings, helping businesses reduce their carbon footprint while enjoying substantial savings on energy bills. The efficiency is further reinforced by the use of environmentally friendly refrigerants, aligning with global efforts to minimize the impact of refrigeration technologies on the environment.

Another key characteristic of the 38BYC and 38BYG is their quiet operation. Engineered with sound-dampening features, these units provide a comfortable indoor experience without the disruptive noise often associated with HVAC systems. This makes them particularly suitable for commercial spaces where a peaceful environment is crucial, such as offices, hotels, and healthcare facilities.

Connectivity is a significant aspect of these models. Equipped with smart technology, the Carrier 38BYC and 38BYG support remote monitoring and control through mobile applications. This allows facility managers to adjust settings, monitor performance, and schedule maintenance tasks from virtually anywhere, enhancing operational efficiency and convenience.

In terms of installation and maintenance, both models are designed with ease of access in mind. The modular design simplifies installation and servicing, ensuring that downtime is minimized, and system longevity is maximized. Their compact footprint makes them versatile enough to fit in various architectural spaces, making them an ideal choice for retrofitting or new constructions.

Overall, the Carrier 38BYC and 38BYG systems encapsulate modern HVAC technology with their emphasis on energy efficiency, quiet operation, smart connectivity, and ease of maintenance. These traits not only serve businesses’ immediate cooling and heating needs but also contribute to a more sustainable and cost-effective future. Whether for a small office or a large commercial establishment, these units deliver a comprehensive climate control solution tailored for today’s ever-evolving business landscape.