Carrier 38APS025-050, 38APD025-100 installation instructions Model Number Nomenclature

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DOMESTIC UNITS — Standard 38AP unit packaging con- sists of coil protection only. Skids are not provided. If overhead rigging is not available at the jobsite, place the unit on a skid or pad before dragging or rolling. When rolling, use a minimum of 3 rollers. When dragging, pull the pad or skid. Do not apply force to the unit. When in final position, raise from above to lift unit off the pad or skid.

EXPORT UNITS — All export units are mounted on skids with vertical coil protection. Leave the unit on the skid until it is in final position. While on the skid, the unit can be rolled or skidded. Apply force to the skid, not to the unit. Use a mini- mum of 3 rollers when rolling. When in final position, raise from above to remove the skid.

PLACING UNITS — When considering location of the unit, be sure to consult National Electrical Code (NEC, U.S.A.) and local code requirements. Allow sufficient space for airflow, wiring, piping, and service. The placement area must be level and strong enough to support the operating weight of the unit. (See Table 5.) When unit is in proper location, use of mounting holes in base rails is recommended for securing unit to supporting structure. For mounting unit on vibration isolators,

38AP D 025 6 4 A

38AP – Split System Condensing Unit

Refrigeration Circuit Options*

D – Dual Refrigeration Circuit

S– Single Refrigeration Circuit

Nominal Capacity – Tons (kW)

 

 

 

 

025

25

(88)

050

50 (176)

090

90

(317)

027

27

(95)

060

60 (211)

100

100

(352)

030

30 (106)

070

70 (246)

 

 

 

 

040

40 (141)

080

80 (281)

 

 

 

 

Power Supply 1 575-3-602 380-3-60

5280/230-3-60

6460-3-60

9 380/415-3-50

Condenser Coil/Low Sound Options

4– MCHX, No Sound Treatment

5E-coat, MCHX, No Sound Treatment C – MCHX, Low Sound Fan(s)

D E-coat MCHX, Low Sound Fan(s)

H – MCHX, Low Sound Fan(s), Compressor Blankets

J E-coat MCHX, Low Sound Fan(s), Compressor Blankets

Revision Level

a38-7100.eps

A – Current Revision Level

 

LEGEND

EMM — Energy Management Module

MCHX — Microchannel Heat Exchanger

*38APS units available in sizes 025-050 only.

4 x 24 in. perimeter support ASTM “C” channels between unit and the isolators are recommended with a minimum of 4 chan- nels per unit. Fasteners for mounting unit are field supplied. See Fig. 4.

Refer to Fig. 5-8 for airflow clearances. Recommended minimum clearances are 6 ft (1829 mm) for unrestricted air- flow and service on sides of unit, 4 ft (1219 mm) on ends, and unrestricted clear air space above the unit. Provide ample space to connect liquid and suction lines to indoor unit. For multiple units, allow 10 ft (3048 mm) separation between airflow surfaces. If walls surround the unit, wall height should not ex- ceed the top of the unit fan discharge. Installation in a pit is not recommended.

IMPORTANT: Be sure to mount unit level to ensure proper oil return to compressors.

Refer to Fig. 9 for outdoor fan and compressor layout.

Refer to Fig. 10 and 11 for unit piping installation. See Table 6 for refrigerant specialties part numbers.

1 0 0 5 0

Packaging/Security Options

0 – Std Packaging

8– Std Packaging, Bottom Skid J – Bottom Skid, Top Crate, Bag

Controls/Communications Options

2 – Scrolling Marquee

3– EMM, Scrolling Marquee

5– No Display

Electrical Options

0– Single Point Power, Terminal Block

1– Single Point Power,

Non-Fused Disconnect

Ambient/Capacity Control/

Interrupt Options

0– Std Ambient, Std Compressor, Std Interrupt

2– Std Ambient, Digital Compressor, Std Interrupt

3– Std Ambient, Std Compressor, High Interrupt

5– Std Ambient, Digital Compressor, High Interrupt

6– Low Ambient, Std Compressor, Std Interrupt

8– Low Ambient, Digital Compressor, Std Interrupt

9– Low Ambient, Std Compressor, High Interrupt

C– Low Ambient, Digital Compressor, High Interrupt

Line Length Options

1– Standard Line Length

2– Long Line Length Check Valves

Fig. 1 — Model Number Nomenclature

2

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Contents Installation Instructions Model Number Nomenclature 38AP025-050 Unit Physical Data English 38AP060-100 Unit Physical Data English Maximum Height for 1.7 C 38AP025-050 Unit Physical Data SI38AP Unit Sizes 38AP060-100 Unit Physical Data SI 38APD Unit lb A38-711438APS Unit lb 38APS Unit kg 38APD Unit kgA38-7130 A38-7115A38-7116 38AP Unit Dimensions, Sizes A38-7101Standard Center of Gravity Height Service Valve A38-7102Center of Gravity Height Service Valve Connections Standard A38-7103In. mm WEIGHT, lb kg Suction Liquid Circuit a A38-7104A38-7131 Outdoor FAN Layout Single and Dual Circuit38AP Unit Rooftop Installation 38AP Unit Ground Level Installation A38-7099gs38APD Circuit a Circuit B Unit Refrigerant Specialties Part NumbersCircuit a 38APS Unit Size LlsvA38-7132 Double Suction Riser Construction38APD025-100 Dual-Circuit Units 60 Hz Refrigerant Piping Requirements38APS025-050 Single-Circuit Units 60 Hz 38APS025-050 Single-Circuit Units 50 Hz 38APD025-100 Dual-Circuit Units 50 Hz38APS 38APS025-50 Single-Circuit Units Double Suction Riser 60 Hz38APD025-100 Dual-Circuit Units Double Suction Riser 60 Hz 38APD Unit38APS025-50 Single-Circuit Units Double Suction Riser 50 Hz 38APD025-100 Dual-Circuit Units Double Suction Riser 50 HzFinal Connection and Leak Test A38-7117 A38-7118A38-7120 A38-7121Requirements for Installation of Liquid Line Solenoid Valve A38-7119Make Electrical Connections Equip GND A38-7122A38-7133 NECA38-7125 A38-7126A38-7127 A38-7128Optional Energy Management Module Wiring A38-712938APS Standard Condenser Fan Electrical Data 38APS Low Sound Condenser Fan Electrical Data38APD Standard Condenser Fan Electrical Data RLA38APD Low Sound Condenser Fan Electrical Data Single Circuit Unit Incoming Power Options38AP Unit Low Ambient Limitations Dual CircuitPage Copyright 2009 Carrier Corporation

38APS025-050, 38APD025-100 specifications

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