Carrier ROOMTOP 50AH024-096 Installation Manual download pdf

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53500057-01 Printed in U.S.A. Form 50AH-14SI Pg 1 712 5-10 Replaces: 50AH-12SI

Installation, Start-Up, and

Service Instructions

CONTENTS

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

Step 1 — Receive and Inspect Unit . . . . . . . . . . . . . . . 2

Step 2 — Protect Unit from Damage . . . . . . . . . . . . . . 2

Step 3 — Provide Unit Support . . . . . . . . . . . . . . . . . . . 2

Step 4 — Rig and Place Unit . . . . . . . . . . . . . . . . . . . . . 8

Step 5 — Make Condensate Piping

Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Step 6 — Install Ductwork. . . . . . . . . . . . . . . . . . . . . . . . 8

Step 7 — Split Systems (Factory Option,

if Required). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Step 8 — Make Electrical Connections . . . . . . . . . . 10

• FIELD CONTROL WIRING

• THERMOSTAT WIRE

Step 9 — Adjust Fan Speed . . . . . . . . . . . . . . . . . . . . . 10

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17,18

SAFETY CONSIDERATIONS

Installing and servicing air-conditioning equipment can be

hazardous due to system pressure and electrical components.

Only trained and qualified service personnel should install,

repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance func-

tions such as cleaning coils and filters and replacing filters. All

other operations should be performed by trained service per-

sonnel. When working on air-conditioning equipment, observe

precautions in the literature and on tags and labels attached to

unit.

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloth for unbrazing operations. Have

fire extinguisher available.

NOTE: Ensure voltage on unit agrees with voltage listed on

the unit rating plate.

GENERAL

The 50AH024-096 units are single-package, indoor, hori-

zontally mounted air conditioners of 2 to 8 tons capacity. The

50AH units are ASHRAE (American Society of Heating, Re-

frigerating and Air Conditioning Engineers) 90.1 compliant.

These units can be mounted as factory-shipped single-

package units or can be separated and mounted as a split

system. If unit is split, the condensing section must be mounted

horizontally.

All units are designed to be ducted on both the condenser

and evaporator sides. Centrifugal blowers are used to ensure

quiet air delivery to the conditioned space. Sound level

requirements should be determined before final unit installa-

tion site is chosen.

WARNING

Disconnect all power to the unit before performing mainte-

nance or service. Electrical shock and personal injury could

result.

WARNING

DO NOT USE TORCH to remove any component. System

contains oil and refrigerant under pressure.

To remove a component, wear protective gloves and gog-

gles and proceed as follows:

a. Shut off electrical power to unit.

b. Recover refrigerant to relieve all pressure from sys-

tem using both high-pressure and low pressure ports.

c. Traces of vapor should be displaced with nitrogen

and the work area should be well ventilated. Refrig-

erant in contact with an open flame produces toxic

gases.

d. Cut component connection tubing with tubing cutter

and remove component from unit. Use a pan to catch

any oil that may come out of the lines and as a gage

for how much oil to add to the system.

e. Carefully unsweat remaining tubing stubs when nec-

essary. Oil can ignite when exposed to torch flame.

Failure to follow these procedures may result in personal

injury or death.

CAUTION

DO NOT re-use compressor oil or any oil that has been

exposed to the atmosphere. Dispose of oil per local codes

and regulations. DO NOT leave refrigerant system open to

air any longer than the actual time required to service the

equipment. Seal circuits being serviced and charge with

dry nitrogen to prevent oil contamination when timely

repairs cannot be completed. Failure to follow these proce-

dures may result in damage to equipment.

ROOMTOP

50AH024-096

Horizontal Indoor Single-Package Cooling Units

with PURON

Refrigerant (R-410A)



1 2 3 4 5 6 ... 19 20

Summary of Contents

Page 1 - Service Instructions

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Page 2 - INSTALLATION

10of the tubing. Use a 1/4-in. hole to mount the valve. Cleanand debur the tubing before doing any brazing to ensurethat no chips or debris are left i

Page 3 - OPERATING WEIGHT DISTRIBUTION

11Table 2B — Electrical Data — Upgrade 1 Evaporator Motor with Standard Condenser MotorTable 2C — Electrical Data — Upgrade 2 Evaporator Motor with St

Page 4

12Table 2D — Electrical Data — Upgrade 3 Evaporator Motor with Standard Condenser MotorTable 2E — Electrical Data — Standard Evaporator Motor with Upg

Page 5

13Table 2F — Electrical Data — Upgrade 1 Evaporator Motor with Upgrade 1 Condenser MotorTable 2G — Electrical Data — Upgrade 2 Evaporator Motor with U

Page 6

14Table 2H — Electrical Data — Upgrade 3 Evaporator Motor with Upgrade 1 Condenser MotorTable 2I — Electrical Data — Standard Evaporator Motor with Up

Page 7 - Fig. 6 — Rigging Details

15Table 2J — Electrical Data — Upgrade 1 Evaporator Motor with Upgrade 2 Condenser MotorTable 2K — Electrical Data — Upgrade 2 Evaporator Motor with U

Page 8

16Table 2L — Electrical Data — Upgrade 3 Evaporator Motor with Upgrade 2 Condenser MotorLEGENDTable 3 — Evaporator-Fan PerformanceLEGEND NOTES:1. Refe

Page 9 - D — Schrader fittings

17Table 4 — Condenser-Fan PerformanceLEGEND NOTES:1. Refer to Table 1 for condenser fan motor and drive information.2. Upgrade 1 Static Motor is requi

Page 10

18Blower Belt Adjustment — Inspect blower belt forwear, proper belt tension, and pulley alignment as conditionsrequire or at the beginning of each hea

Page 11

Page 12

2Unit servicing is relatively simple since access to the con-denser and evaporator motors, blowers, belt, and pulley isgained through access panels lo

Page 13

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Page 14

3DETAIL ACLEARANCE HOLE FOR3/8" HANGING RODTYP 8 PLSAIRINCOILACCESSFRONTTOPRIGHTREAR LEFTRETURNAIRSUPPLYAIRAIROUTMOTORACCESSELECTBOXACCESSBLOWERA

Page 15

464 1/26 1/8183/41 3/416 1/81 1/23 13/161 15/1644 1/83 7/838 1/86 1/1624 3/438 1/25 15/163 1/43 1/45 7/813 5/89 5/1612 3/86 7/162 1/45 7/8120 lbs.Fig.

Page 16

5DETAIL ACLEARANCE HOLE FOR3/8" HANGING RODTYP 8 PLSDETAIL "A"AIRINMOTORACCELECTBOXACCESSCOILACCESSCOMPRESSORACCESSFILTERACCESSCONDENSA

Page 17

613 7/1616 1/166 7/1618 3/46 5/870 1/23 1/4 2 1/45 7/822 1/8 21 7/1618 15/1610 7/83 1/45 15/161 1/272 1/21 15/16 61 1/83 7/843 1/86 1/1642 1/229 3/412

Page 18 - DEFLECTION

7Table 1 — Physical DataLEGEND*Shipping weights include base unit plus packaging.†If components are to be split, additional refrigerant will be needed

Page 19

8Table 1 — Physical Data (cont)LEGEND*Shipping weights include base unit plus packaging.†If components are to be split, additional refrigerant will be

Page 20

9Condensing section must be located in same plane as, orabove, evaporator section to maintain the liquid refrigerant sealat the expansion device. This

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Carrier ROOMTOP 50AH024-096 Installation Manual

Browse online or download Installation Manual for Split-system air conditioners Carrier ROOMTOP 50AH024-096. Carrier ROOMTOP 50AH024-096 Unit installation User Manual

Summary of Contents

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