Carrier 58DX User Manual

58DX

HEATING A COOLING

Deluxe Downflow Condensing Furnaces

Installation, Start-Up and Service Instructions

For Sizes 040-100

NOTE: Read these instructions carefully and completely

before installing the furnace.

INTRODUCTION

Before installing the furnace, refer to “Procedure for Down flow Condensing Furnaces” (packaged with the equipment) for information concerning combustion, venting, piping, and other standard installation practices. Further reference is made to the current edition of the National Fuel Gas Code NFPA 54-1988-1/ANSI Z223.1-1988.

>• Reference should eJso be made to the regulations of the

serving gas supplier and the local building, heating, plumb ing, or other codes in effect in the area in which the installa tion is made.

SAFETY CONSIDERATIONS

Installation emd servicing of heating equipment can be haz ardous due to gas and electrical components. Only treiined and qualified personnel should install, repair, or service heating equipment.

Untrained personnel cem perform basic maintenance func tions such as cleaning and replacing air filters. AU other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, tags, and labels attached to or shipped with the unit and other safety precautions that may apply.

FoUow aU safety codes, including NFPA No. 54/ANSI Z223.1-1988, National Fuel Gas Code, Wear safety glasses and work gloves. Have fire extinguisher available during startup and adjustment procedures and service call.

Recognize safety information. This is the safety-alert sym

bol A. When you see this symbol on the furnace and in instructions or manuals, be alert to the potential for per sonal injury.

Understand the signal word—DANGER, WARNING or CAUTION. These words are used with the safety-alert sym bol. DANGER identifies the most serious hazards which

will result in severe personal injury or death. WARNING,

on the other hand could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.

Each Model 58DX is shipped from the factory completely

assembled with a multispeed direct-drive blower and wired ready for an indoor heating installation. The furnace fea tures a blower control center with easy-to-read, 24-volt ter minal strip to ensure proper connections.

The output capacity and any representations of efficiency for this furnace aie based on standard Department of Energy test procedures.

The installed operation may vary, depending on installation, weather, and other factors.

The design of the downflow gas-fired furnace is A.G.A. cer tified for installation on noncombustible flooring. The fur nace may be installed on combustible flooring when installed with the accessory downflow subbase. This furnace is designed for installation in alcoves, attics, basements, closets, utility rooms, and manufactured housing (mobile homes). This furnace line is not A.G.A. certified for installa tion in a recreation vehicle or outdoors.

■ EFFICIENCY

■ RATING I CERTIFIED

lama

Fig. 1 —Model 58DX

A WARNING

Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poison ing, explosion, fire, electrical shock, or other conditions which may cause personeJ injury or property damage. Consult a qualified installer, service agency, local gas supplier or your Distributor or Branch for information or assistance. The qualified installer or agency must use

only factory authorized kits or accessories when modi fying this product. A failure to adhere to this warning can cause electrical shock, fire, personal injury, or death.

Series

A87414

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

Book] 1 I 4 PC 101 Catalog No. 535-887 Printed in U.S.A. Form 58DX-13Si Pg 1 6-89 Repiaces; 58DX-11Si

Tab I6al8a

HOLE IN

FLOOR

Fig. 2—Floor Opening for Concrete Slab

Insteillation requires the following;

*1. Inspection

*11. Furnace Location

*III. Gas Piping

*IV. Combustion-Air and Vent Piping

*V. Condensate Piping VI. Supply-Air Plenum Installation

VII. Electrical

VIII. Sequence of Operation

IX. Fdter *X. Startup and Adjustment XI. Care and Maintenance

*For these sections (or installation steps), refer to the appro priate sections of “Procedures for Downflow Condensing Furnaces” booklet packaged with this unit.

For accessory instedlation details, refer to the applicable installation hterature.

NOTE: Remove all shipping brackets and materials before

operating the furnace.

VI. SUPPLY-AIR PLENUM INSTALLATION A. Installation on a concrete slab

1. See Fig. 5 for dimensions and location of supply-air opening in furnace bottom.

2. Construct hole in floor per dimensions in Fig. 2 and Table 1.

3. Place plenum and furnace as shown in Fig. 3.

Fig. 4—Furnace, Plenum, and

Base Installed on a Combustible Floor

Table 1—Opening Dimensions

Furnace A

Width

171/2

241/2

*These dimensions appiy when a Model 28RC or 28RD Evaporator Coil

casing is to be installed.

16 1/8 19 5/8 19 5/8 231/8

Furnace

19 5/8 19 7/16

B. Installation on a combustible floor

Furnace & Coil*

19 7/16

1. Read Installation Instructions packaged with down flow subbase.

2. Cut and frame hole in floor per dimensions in Installa tion Instructions packaged with downflow subbase. If

this requires cutting of a floor joint, tie ends of cut joist into adjacent joists so that proper floor support wUl be maintained.

Table 2—Dimensions (In Inches)

Size A D E

040 171/2 15 7/8 16 060 080 21 19 3/8 191/2 100 24 1/2 22 7/8 23

171/2 15 7/8 . 16

A87297

Fig. 5—Dimensional Drawing

------------------

FIELD 24-VOLT WIRING

TERMINAL BLOCK

Fig. 6—Heating and Cooiing Application Wiring Diagram

3. Assemble and install downflow subbase per instruc tions packaged with subbase.

4. When completed, downflow subbase, plenum, and fur nace (or coil casing when used) should be installed as shown in Fig. 4.

VII. ELECTRICAL CONNECTIONS A. 115-Volt Wiring

iM PORT ANT: Before proceeding with the electrical connec

tions, make certain that voltage, frequency, and phase cor

respond to that specified on the unit rating plate and Table

3. Also, check to be sure that the service provided by the utility is sufficient to handle the load imposed by this equip ment. Refer to Table 3 for the equipment electrical

specifications.

Table 3—Electrical Data

Volts-

SIZE Hertz- Voltage Range

Phase Max* Min* 040 115—60—1 127 104 060

115—60—1 080 115—60—1 127 104 100 115—60—1 127 104

»Permissible limits of the voltage range at which the unit will operate sat

isfactorily. fTime-delay fuse is recommended. ^Length shown is as measured one way along wire path between unit

and service panel for maximum 2% voltage drop.

Operating

127 104

Max. Min. Unit Wire Length HACR-Type

Amps Size Feett Ckt Bkr Amps

8.7 14 41 15

8.2 14 42 15

10.1 14 36 15

13.6 12 42 20

Max. Wire

Max. Fusef or

A CAUTION

Do not connect aluminum wire between the disconnect

switch and the furnace.

AS SUPPLIED, MUST BE REPLACED, USE SAME TYPE OR EQUIVALENT WIRE.

A87502

See Fig. 6 for a wiring diagram showing the proper field 115- and 24-volt wiring. Be sure field wiring complies with the National Electric Code and any local codes or ordnances

that may apply. Voltage to the furnace must be within the limits shown in Table 3. Contact your local power company for correction of improper voltage.

NOTE; Operation of unit on improper line voltage consti

tutes abuse and could affect unit reliability. Do not install

the furnace in a system where voltage may fluctuate above

or below permissible limits.

Use a separate fused branch electrical circuit containing the properly sized time-delay fuse or HACR-type circuit breaker for this furnace. See Table 3 for fuse and wire specifications. A disconnecting means must be located within sight of, and readily accessible to, the furnace. The blower door switch may be acceptable in some areas as a disconnecting means.

Line voltage must enter the auxiliary J-box on the righthand side of the furnace.

A WARNING

The cabinet must have an uninterrupted or unbroken ground according to National Electrical Code. ANSI/ NFPA 70-1987, or local codes to minimize personal

injury if an electrical fault should occur. This may con

sist of electrical wire or conduit approved for electrical ground when installed in accordance with existing elec

trical codes. Do not use gas piping as an electrical

ground. A failure to adhere to this warning can result in an electrical shock, fire, or death.

Table 4—Ratings and Performance

Indoor

SIZE

040 060 080 100 110,000 101,000 100,000 40—70

*Gas input ratings are certified for elevations to 2000 ft. For elevations above 2000 feet, reduce ratings 4% for each 1000 ft above sea level. tDetermined by U.S. Government tests.

»»Isolated combustion system; GAMA non-weatherized.

input

Btuh*

44,000 66,000 60,000 88,000 81,000 80,000 40—70

Capacity

Btuht

40,000 40,000 20—50 0.10 1335

ICS»*

Capacity

Btuht

60,000

Temperature

Rise

Range

40—70

Heating Cooling

Ext Static

Pressure

0.12 1275

0.15 1590

0.20 2000

Cfm

Ext Static

Pressure

0.5 1265 1/3 PSC

0.5 1170 1/3 PSC

0.5 1565 1/2 PSC

0.5 2035

Cfm

HP & Type

Motor

3/4 PSC 241

Approx

Shipping

Weight

179 187 202

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