Carrier 58DHL User Manual

58DHL

HEATING A COOLING

Downflow/Horizontal Induced-Combustion Furnaces

Installation, Start-Up and Service Instructions

Sizes 055-115 = ~ —

NOTE: Remove the Energy Guide tag from the furnace

when the installation is complete.

NOTE: This is a highly specialized piece of equipment.

Before beginning the installation, READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY.

INTRODUCTION

Before installing the furnace, refer to “Procedure for Induced-Combustion Furnaces” (packaged with the equip ment) for information concerning combustion, venting, pip ing, and other standard installation practices. Further refer ence is made to the current edition of the National Fuel Gas Code NFPA No. 54, TIA-54-1984-1/ANSI Z223.1-1984, Z223.la-1987 and American Gas Association.

The inducedrcombustion vent system of this furnace is designed to operate at zero or negative pressure at the vent

connector outlet. This furnace, therefore, comphes with the National Fuel Gas Code (NFPA No. 54, TIA-54-1984-1/ ANSI Z223.1-1984, Z223.1a-1987), Part 7.3.4.b. This furnace is also Usted by A.G.A. for use with the type B1 gas vent, as described in the National Fuel Gas Code, Part 7.4.2.

Each furnace is shipped from the factory completely assem bled with multispeed direct-drive blower and wired ready for indoor heating installation. AU sizes featxire a blower con trol center with easy-to-read low-voltage terminal strip to ensure proper connections.

Fig. 1—Downflow

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Table 1—Clearances (In Inches)

Sizes DOWNFLOW (In Alcove or Closet) Sides—Single-Wali Vent

Type-B1 Double-Wall Vent Back Top Front*—Single-Wall Vent

Type-B1 Double-Wall Vent

Vent—Single-Wall

Type-BI Double Wall HORIZONTAL (In Alcove) Sidesf Back

Top—Single-Wall Vent

Type-BI Double-Wall Vent Front* Vent—Single-Wall

Type-BI Double-Wall HORIZONTAL (In Closet) Sidest

Back Top—Single-Wall Vent

Type-BI Double-Wall Vent

Front*—Single-Wall Vent

Type-BI Double-Wall Vent

Vent—Single-Wall

Type-BI Double-Wall 1

*Provide a 30-in. service clearance in front of thè furnace, tindicates suppiy or return sides when furnace is in the horizontai posi

tion.

055

18 18

075 thru 115

1 0 0 0 0 1 6 6 3 3 6 1

1 0 0 1 0 0

6 1

1 3 2 2 6 3 3 6

iiilil

The output capacity and any representations of efficiency for this product are based on standard Department of Energy test procedures. The installed operation may veiry,

6 1

0 1

depending on installation, weather, or other factors.

Do not install furnace in a corrosive or contaminated atmosphere. Make sure aU combustion and circulating are requirements hsted in “Procedure for Induced-Com

bustion Furnaces” are adhered to, in addition to all local codes and ordinances.

Do not use this furnace during construction when adhe

1 3 2 2 6

sives, sealers, and/or new carpets are being installed. If the furnace is required during construction, use clean outside air for combustion and ventilation. Compounds of chlorine and flourine when burned with combustion air form acids which will cause corrosion of the heat

6 1

exchangers and metal vent system. Some of these com pounds are: paneling and dry wall adhesives, paints, thinners, masonry cleaning materials, and many other solvents commonly used in the construction process.

Fig. 2—Horizontai

A CAUTION

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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. 565-807 Printed In U.S.A. Form 58DHL-1SI Pg 1 5-88 Replaces: New

Tab 16a 18a

Table 2—Dimensions (in inches)

Size 055BC 055CC OrSBC

075CC 095CC 095DC 21 115CC

14^,6

14=/i6

1772

V'k M'k 157s

2472

A D

127,6 127,6

157a

157fc

197a

22-'7,6

12”/,6

12’7,6

16 4 16 4 16

1972

23 5

Tabie 3—Ratings and Performance*

SIZE

055BC 055CC 075BC 075CC

095CC 095DC 115CC

*The above gas inputs are certified for altitudes to 2000 ft. For elevations above 2000 ft, reduce input 4% for each 1000 ft above sea level. tDetermined by U.S. Government test.

Input Btuh* 67,000 56,000 40—70 67,000 56,000 90,000 75,000

90,000 75,000 114,000 95,000 55—85 114,000 95,000 137,000 115,000

Capacity

Btuht

Temperature

Rise

Range

35—65 0.12 45—75 40—70

. 55—85

45—75 0.20 1937

Heating

External Static

Pressure

0.12 775

0.15 1005 0.5

0.15 1240 0.5

0.20 1248

0.20 1350 0.5

CFM

1080 0.5 1157

Cooling

External Static

Pressure

0.5 850 74 psc 140

0.5 1590 72 PSC 178

0.5

CFM

1225 1553

1929 2010 ’¿ PSC 208

Motor

HP & Type

7a PSC 7a PSC

’¿PSC 163

’¿PSC

Vent Conn

4 4

Shipping

Weight

(Lbs)

142 160

188

The design of the downflow/horizontal gas-fifed furnace is A.G.A. certified for natural and LP (propane) gas and for installation on noncombustible flooring. The furnace may be installed on combustible flooring when installed with the accessory floor base. This furnace is for installation in alcoves, attics, crawl spaces, basements, closets, or iitUity rooms. The design of this furnace line is not A.G.A. certified for installation in mobile homes, recreation vehicles, or outdoors.

Installation comprises the following:

*1. Inspection

*11. Location, Ventilation, and Air for Combustion

*III. Gas Piping

HOLE IN

FLOOR

*IV. Venting

V. Supply-Air Plenum Installation (Downflow)

VI. Attic Installation

VII. Crawl Space Installation

VIII. Filter Arrangement

IX. Sequence of Operation

*To perform these sections (or installation steps), refer to the appropriate sections of “Procedures for Induced-Com

bustion Furnaces” booklet packaged with this unit.

X. Electrical Connections

XI. Startup and Adjustment

XII. Care and Maintenance

For accessory installation details, refer to apphcable instal lation hterature.

V. SUPPLY-AIR PLENUM INSTALLATION (DOWNFLOW) A. Installation on a concrete slab

1. See Fig. 3 for dimensions and location of supply-air

opening in furnace bottom.

2. Construct hole in floor per dimensions in Fig. 4 and

Table 4.

3. Place plenum and furnace as shown in Fig. 5.

B. installation on a combustible floor

1. Read Installation Instructions packaged with combus tible floor base.

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Fig. 4—Floor Opening for Concrete Slab

Table 4—Opening Dimensions

Furnace Casing

Width

147,6

17’¿

24’¿

♦These dimensions apply when a Model 28RC or 28RD Evaporator Coil

casing is to be installed.

13’¿ 19%

167,6

19’¿ 19%

237,6

Heat-Only

19%

Heat/Cool*

197,6

197,6 197,6 197,6

Fig. 5—Furnace on a Concrete Slab

The furnace can be installed horizontally on either the LH or RH side. A typical attic installation is shown in Fig. 8.

NOTE; The National Fuel Gas Code requires the use of a

t5q>e B1 vent in an attic or concealed space.

A. Construct a working platform.

1. Place working platform in location where all required

furnace clearances are obtainable. See Table 1.

2. Use materials in platform that will support installer

and service persons.

3. Secure platform to building joists.

Fig. 7—Furnace, Plenum, and

Base Installed on a Combustible Floor

Cut and frame hole in floor per dimensions in Table 1 of Installation Instructions packaged with combustible floor base. If this requires cutting of a floor joist, tie ends of cut joist into adjacent joists so that proper floor support wül be maintained.

Assemble and install combustible floor base per instructions packaged with base.

4. When completed, combustible floor base, plenum, and furnace (or coil casing when used) should be installed as shown in Fig. 7.

VI. HORIZONTAL ATTIC INSTALLATION

A WARNING

Do not install the furnace on its back. Fusible link oper ation will be adversely affected. Never connect returnair ducts to the sides or back of the furnace. A failure to adhere to this warning can cause a fire, physical injury,

or death.

LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BY INTERSECTIONS OF THE TOP AND TWO SIDES OF THE FURNACE JACKET AND BUILDING JOISTS. STUDS OR FRAMING.'

B. Install furnace

1. Position furnace in desired location.

2. Connect gas supply pipe. See Fig. 8 for typical piping entry. It is important to install a sediment trap in the gas pipe riser.

3. Connect supply- and return-air ducts.

a. Install field-supplied duct flanges as shown in

Fig. 9.

b. Using appropriate fasteners for type of supply-air

duct being used, connect duct to furnace.

c. Install field-supphed filter retainers as indicated in

Fig. 10 and Table 5 before coimecting return-air duct to furnace.

NOTE: For ease of servicing, a return-air filter can be

installed in a common return-air grille. The air velocity rat ing must not exceed 300 ft/min for disposable filters. The air velocity through permanent-type filters shall not exceed the mEuiufacturer’s recommendation.

d. Using appropriate fasteners for type of duct being

used, connect return-air duct to furnace.

4. Install 24-x24-in. sheet metal shield on platform in

front of louvered control panel, as shown in Fig. 8.

VII. CRAWL SPACE INSTALLATION

The furnace can be installed horizontally with either the LH

or RH side up. In a crawl space, the furnace can either be

hung from the floor joist or installed on suitable blocks or pad. The furnace can be suspended from each corner by

SEDIMENT TRAP

Fig. 8—Typical Attic installation

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