Carrier 39LB, 39LA, 39LC, 39LE, 39LF, 39LH03-25 Vertical Unit Slant Coil Removal 39LD Units Sizes

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LEGEND

1

—

Fan Side Panel

10

—

Holddown Screws

2

—

Fan Access Door

11

—

Coil

3

—

Screws

12

—

Holddown Screws

4

—

Angle

13

—

Left Support Panel

5

—

Baffle Screws

14

—

Inside Baffle

6

—

Piping

15

—

Accessory Side Panel

7

—

Right Side Panels

16

—

Left Side Panels

8

—

Right Support Panel

17

—

Rear Panel

9— Condensate Baffle

Fig. 39 — Vertical Unit Slant Coil Removal (39LD Units — Sizes 03-21)

HORIZONTAL OR VERTICAL UNIT — DUAL COIL REMOVAL (39LA,39LD units — size 25) — (NOTE: Item numbers are in Fig. 40 unless otherwise indicated.)

1.Refer to Fig. 4 for service area requirements.

2.Disconnect piping (Item 5).

3.Horizontal Unit, 39LA — On top panel (Item 3) remove screws located directly above side panels (Items 2 and 6). Top panels may be removed from unit to provide more workspace, but it is not required.

Vertical Unit, 39LD — Through fan access door (Item 2, Fig. 39), remove screws (Item 3, Fig. 39) holding angle (Item 4, Fig. 39) to top of coil panels (Item 7, Fig. 39).

Remove rear panel (Item 17, Fig. 39) and remove baffle angle screws (Item 4) holding top baffle to coil.

4.Remove side panel(s) (Item 6).

NOTE: Vertical units may require support of fan section after removal of side panels.

5.If accessory is present, remove accessory side panel (Item

1)on left side of unit. Detach filter track support bracket if upstream accessory is a filter.

6.Remove screws from horizontal baffle (Item 8). Leave baffle attached to upper condensate pan (Item 9).

7.Remove screws from inside baffles (Item 7). Leave baffles attached to left side panel (Item 2).

8.Slide coils and header and baffles from unit.

9.Replace coils by reversing proceeding Steps 1-8.

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Contents → Safety Considerations ContentsUnit Identification IntroductionPage Preinstallation Size Service Area RequirementsUnit Size Physical DataUnit Rigging Details Mixing Box InstallationMixing Box Damper Operating Torque In.-lb 39L Unit Size TorqueRecommended Actuators Page IGV Actuator Bracket Installation Install Sheaves on Motor and Fan ShaftsDetermining Sheave-Shaft Overhang Cross Belt Small Deflection Force LB SheavePD Range SectionCoil Freeze-Up Protection Water and Steam Coil Piping RecommendationsLow, Medium or High Pressure Coil Piping Dripping Steam Supply to Condensate Return Chilled Water Coil Circuiting Data Steam Coil Connection Sizes Face Split Coil Suction Line Piping Direct Expansion Coil Circuiting Data ROW COIL†† Small Face Area 39LB, 39LC, 39LF Unit Size Circuiting TypeDistributor Part Numbers Side Connector Hot Gas Bypass Data= 1.68 x .33 x Face Split Coil Manifolding Typical Electric Heater Installation Typical Electric Heater Wiring Schematic Steps FLA Electric Heater DataFan Discharge Positions, Fans without IGVs Wire Size Load AmpsBolt Size Torque START-UPFan Motor Replacement ServiceCoil Cleaning GeneralCoil Removal Field-Installed Coils 39LA,LD OnlyHorizontal Unit Slant Coil Removal 39LA Units Sizes Vertical Unit Slant Coil Removal 39LD Units Sizes Page Changing Coil Hand Filters Fan Shaft Bearing RemovalDX and ALL Water Coils Steam Coils Only Filter Arrangement, 2-in. and 4-in. Flat Filter DataLubricant Data LubricationManufacturer Lubricant 39L Unit Size Cutoff Cutoff ClearanceMetric Conversion Chart Copyright 2004 Carrier Corporation

39LG, 39LH03-25, 39LD, 39LE, 39LB specifications

The Carrier 39 series, encompassing models 39LA, 39LF, 39LC, 39LB, and 39LE, represents a prominent line of rooftop packaged units that combine robust performance, energy efficiency, and advanced technology for commercial applications. Designed to provide reliable heating and cooling solutions, these units stand out for their versatility and innovative features.

The 39LA model offers high efficiency and flexibility, making it ideal for various building types. It incorporates advanced economizer capabilities that enhance indoor air quality while reducing energy costs. The unit is equipped with a dual-walled cabinet, which not only improves durability but also ensures quiet operation, making it suitable for noise-sensitive environments.

The 39LF model further enhances energy savings, featuring a unique hybrid heat pump system. This system allows for both heating and cooling through an integrated design, reducing the need for separate systems and streamlining maintenance requirements. The 39LF also boasts high Seasonal Energy Efficiency Ratio (SEER) ratings, contributing to lower operating costs without compromising comfort.

The 39LC variant excels in humid climates, employing advanced dehumidification technologies that effectively manage indoor moisture levels. This model is often utilized in environments such as gyms, restaurants, and hotels where humidity control is vital. Its variable-speed compressors adjust output based on demand, optimizing energy consumption while maintaining consistent comfort levels.

The 39LB model focuses on enhanced filtration and air quality improvements. Its engineered design accommodates high-efficiency particulate air (HEPA) filters, crucial for spaces that require stringent air quality standards. This model also includes smart controls that allow for precise temperature adjustments, ensuring optimal comfort in any setting.

Finally, the 39LE unit emphasizes user-friendly interfaces and smart technology integration. The built-in Wi-Fi capability enables remote monitoring and operation, allowing managers to adjust settings from anywhere, improving overall energy management. Additionally, the 39LE’s compatibility with Building Management Systems (BMS) facilitates seamless integration into existing setups.

In summary, the Carrier 39 series 39LA, 39LF, 39LC, 39LB, and 39LE present a comprehensive array of features designed for various commercial heating and cooling applications. With an emphasis on energy efficiency, advanced air quality management, and user-friendly technology, these units continue to set the standard for rooftop packaged units in the industry. Their innovative characteristics not only enhance comfort but also promote sustainability, making them a smart choice for modern commercial environments.
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