Carrier 50AH User Manual

Copyright 2002 Carrier Corporation Form 50AH-6PDSingle Package Cooling UnitsFeaturing:• compact design• flexibility• easy maintenance• high quality an

10ELECTRIC HEATER DATALEGEND*May be field converted to single-phase units, see electric heat installation instructions.NOTE: Separate power source is

11Typical wiring schematic50AH048,060 — 230-1-60 UNITSLEGENDAHA — Adjustable Heat AnticipatorC—Contactor CompressorCB — Circuit BreakerCC — Cooling Co

12Typical wiring schematic (cont)50AH036,048,060 — 208/230-3-60 UNITSLEGENDAHA — Adjustable Heat AnticipatorC—Contactor CompressorCB — Circuit Breaker

13Application dataOUTDOOR-AIR TEMPERATURE OPERATING LIMITS (F)Field splitting instructions — If components are split,maximum length of refrigerant tub

14Indoor Packaged UnitHVAC Guide Specifications — Section 15787Size Range: 2 to 5 Tons, NominalCarrier Model Number: 50AHPart 1 — General1.01 SYSTEM D

15I. Operating characteristics:1. Unit shall operate using refrigerant R-22.2. Unit shall be designed for indoor suspendedhorizontal mounting and oper

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

2location is ideal for the maintenance technician, and five access panels, easily removed, provide quick and convenient access to all components when

3LEGEND*Shipping weights include base unit plus packaging.†If components are to be split, additional refrigerant will be needed.**Two-speed motor.††Us

4Thermostat and subbase — Attractive wall-mounted24-v accessory provides precise temperature control.Automatic and Manual changeover models available.

5Base unit dimensionsDIMENSIONS (ft-in.)UNIT50AHABCDE024 2-5 2-15/81- 53/41-2 1-10362-43/42-2 1- 53/41-2 1-10482-5 2-3 1-115/81-87/81-77/80602-43/42-2

6I Determine cooling requirements at designconditions.Given:Gross Cooling CapacityRequired (TC) . . . . . . . . . . . . . . . . . .39,000 BtuhSensible

7GROSS COOLING CAPACITIES (cont)LEGENDNOTES:1. Performance based on nominal condenser airflow listed in physical data tableon page 3.2. SHC is based o

8BELT DRIVE EVAPORATOR FAN PERFORMANCE(Special Order Only, Pricing andordering on related price pages.)LEGENDNOTE: Pulley setting must be adjusted to

9ELECTRIC HEATER STATIC PRESSURE DROP (in. wg)NOTE: Above electric heaters arenotUL (Underwriters’ Laboratories) or CSA (Canadian Standards Associatio