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Carrier 58UXT Operating Instructions Manual

Upflow/horizontal, 2–speed, 2–stage induced-combustion gas furnace
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Installation, Start-Up, and Operating Instructions
NOTE: Read the entire instruction manual before starting the
installation.
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TABLE OF CONTENTS

SAFETY CONSIDERATIONS .....................................................1
INTRODUCTION ..........................................................................1
LOCATION....................................................................................4
General ......................................................................................4
Location Relative to Cooling Equipment ................................4
Hazardous Locations.................................................................4
AIR FOR COMBUSTION AND VENTILATION ......................4
Unconfined Space .....................................................................5
Confined Space .........................................................................5
INSTALLATION ...........................................................................6
Air Ducts...................................................................................6
General Requirements .........................................................6
Ductwork Acoustical Treatment .........................................6
Supply Air Connections ......................................................6
Return Air Connections.......................................................7
Filter Arrangement....................................................................7
Leveling Legs (If Required).....................................................8
Upflow Installation ...................................................................8
Horizontal Attic Installation .....................................................8
Construct a Working Platform ............................................8
Install Furnace .....................................................................8
Horizontal Crawlspace Installation ..........................................8
Gas Piping...............................................................................10
Electrical Connections ............................................................10
115-v Wiring......................................................................10
24-v Wiring........................................................................11
Accessories ........................................................................11
Venting ....................................................................................11
General ....................................................................................11
Sequence of Operation............................................................12
Start-up Procedures.................................................................17
Adjustments.............................................................................17
Check Safety Controls ............................................................23
Checklist..................................................................................23

SAFETY CONSIDERATIONS

Installation and servicing of heating equipment can be hazardous
due to gas and electrical components. Only trained and qualified
personnel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters. All other operations must
be performed by trained service personnel. When working on
heating equipment, observe precautions in the literature, on tags,
and on labels attached to or shipped with the unit and other safety
precautions that may apply.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 4
PC 101
Catalog No. 535-80046
Tab 6a 8a
Upflow/Horizontal, 2-Speed, 2-Stage
Size 060-120, Series 130
Printed in U.S.A.
Induced-Combustion Gas Furnace
REGISTERED QUALITY SYSTEM
Follow all safety codes. In the United States, follow all safety
codes including the National Fuel Gas Code (NFGC) NFPA
54-1999/ANSI Z223.1-1999 and the Installation Standards, Warm
Air Heating and Air Conditioning Systems (NFPA 90B)
ANSI/NFPA 90B. In Canada, refer to the current edition of the
CAN/CGA-B149.1- and .2-M00 National Standard of Canada,
Natural Gas and Propane Installation Codes (NSCNGPIC). Wear
safety glasses and work gloves. Have a fire extinguisher available
during start-up and adjustment procedures and service calls.
Recognize safety information. This is the safety-alert symbol .
When you see this symbol on the furnace and in instructions or
manuals, be alert to the potential for personal injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious hazards which will result in
severe personal injury or death. WARNING signifies hazards
which 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. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen-
tial construction practices. We require these instructions as a
minimum for a safe installation.

INTRODUCTION

The model 58UXT Series 130 furnace is available in sizes 60,000
through 120,000 Btuh input capacities.
The design of the upflow/horizontal gas-fired furnace is CSA
(A.G.A. and C.G.A.) design-certified for use with natural and
propane gases and for installation on combustible wood flooring,
Form 58UXT-5SI
58UXT
EFFICIENCY
RATING
CERTIFIED
CERTIFIED
®
Pg 1
9-01
Replaces: 58UXT-4SI

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Summary of Contents for Carrier 58UXT

  • Page 1: Table Of Contents

    INTRODUCTION Untrained personnel can perform basic maintenance functions The model 58UXT Series 130 furnace is available in sizes 60,000 such as cleaning and replacing air filters. All other operations must through 120,000 Btuh input capacities.
  • Page 2 AIRFLOW ⁄ ″ ⁄ ″ 19″ ⁄ ″ ⁄ ″ VENT CONN ⁄ ″ OUTLET 1″ 1″ ⁄ -IN. DIA ⁄ -IN. DIA HOLE ⁄ ″ ⁄ ″ POWER ENTRY POWER ENTRY ⁄ ″ ⁄ -IN. DIA ⁄ -IN. DIA ⁄...
  • Page 3 MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION This furnace is approved for UPFLOW and HORIZONTAL This forced air furnace is equipped for use with natural gas at altitudes 0-5,500 ft. (0-1,675 m) above sea installations. level. The high-altitude conversion kit MUST be installed above 5,500 ft (1,675 m).

  • Page 4: Electrostatic Discharge (Esd) Precautions

    ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS Locate furnace as near the center of the air distribution system and chimney or vent as possible. The furnace should be installed as level as possible. When a furnace is installed so that supply ducts carry air to areas outside the space containing the furnace, return Electrostatic discharge can affect electronic components.

  • Page 5: Unconfined Space

    For Example: minimum dimensions of 3 in. † Minimum of 3 in. when type-B1 vent is used. A89012 58UXT FURNACE HIGH-STAGE MINIMUM SQ FT WITH INPUT BTUH 7-1/2 FT CEILING Fig. 5—Confined Space: Air for Combustion and Ventilation from an Unconfined Space...

  • Page 6: Installation

    When ducts are used, they must be of the same cross-sectional area 1 SQ IN. PER 4000 as the free area of the openings to which they connect. The DUCTS BTUH * minimum dimension of ducts must not be less than 3 in. (See Fig. OUTDOORS INSTALLATION Step 1—Air Ducts...

  • Page 7: Return Air Connections

    RETURN AIR CONNECTIONS 21-IN. WIDE ⁄ -IN. WIDE CASINGS ONLY: CASINGS ONLY: SUPPORT RODS (3) INSTALL FIELD-SUPPLIED EXTEND 1/4" ON EACH FILTER FILLER STRIP SIDE OF FILTER AND UNDER FILTER. REST ON CASING FLANGE For airflow requirements above 1800 CFM, see Air Delivery table in Product Data literature for specific use of single side inlets.

  • Page 8: Leveling Legs (If Required)

    Table 3—Filter Information (IN.) FILTER SIZE* FURNACE FILTER FRONT CASING WIDTH TYPE Side Return Bottom Return 14-3/16 (1) 16 x 25 x 1† (1) 14 x 25 x 1 Cleanable 17-1/2 (1) 16 x 25 x 1† (1) 16 x 25 x 1† Cleanable (1) 16 x 25 x 1 (1) 20 x 25 x 1†...
  • Page 9 LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BY INTERSECTIONS OF THE TOP AND TWO SIDES OF THE FURNACE JACKET, BUILDING JOISTS, STUDS, OR FRAMING. ENTRY MANUAL SHUTOFF GAS VALVE 30-IN. MIN WORK AREA FLUE VENT 24″ 6 ″ M SHEET METAL 24″...

  • Page 10: Gas Piping

    Install an accessible manual shutoff valve upstream of furnace gas controls and within 72 in. of furnace. A 1/8-in. NPT plugged tapping is provided on the gas valve for test gage connection. Installation of an additional 1/8-in. NPT plugged tapping, acces- sible for test gage connection, installed immediately upstream of gas supply connection to furnace and downstream of manual shutoff valve, is not required.

  • Page 11: 24-V Wiring

    Table 5—Electrical Data OPERATING VOLTS— MAX WIRE MAX FUSE OR VOLTAGE RANGE UNIT SIZE HERTZ— UNIT WIRE LENGTH (FT)‡ CKT BKR AMPS† PHASE AMPS GAGE Max* Min* 060-12 115—60—1 10.6 080-16 115—60—1 13.4 100-16 115—60—1 13.2 100-20 115—60—1 17.7 120-20 115—60—1 18.2 * Permissible limits of the voltage range at which the unit will operate satisfactorily.

  • Page 12: Sequence Of Operation

    FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING 1-STAGE THERMOSTAT TERMINALS FIVE FIELD-SUPPLIED WIRE FUSED DISCONNECT TWO-WIRE 208/230- OR HEATING- 460-V ONLY THREE PHASE 208/230-V W/W1 SINGLE Y/Y2 PHASE 115-V FUSED JUNCTION DISCONNECT SWITCH CONTROL CONDENSING (WHEN REQUIRED)
  • Page 13 b. Ignitor warm-up—At end of prepurge period, the hot EAC - ELECTRONIC AIR CLEANER surface ignitor HSI is energized for a 17-sec ignitor (115-VAC 1 AMP MAX) warm-up period. 3-AMP c. Trial-for-ignition sequence—When the ignitor warm-up FUSE period is completed, the main gas valve relay contacts LED - MGVR-1 and -2 (and high-heat pressure switch relay DIAGNOSTIC...
  • Page 14 Table 6—Setup Switch Description SETUP NORMAL DESCRIPTION SWITCH NO. POSITION OF USE Turn switch on to obtain only high-gas-heat operation on SW-1 OFF (Staged Gas Heat) any call for heat regardless of whether R-W/W1, or High Heat Only R-W/W1, -W2 is closed. SW-1 overrides SW-2. Turn switch off for installations with single-stage thermo- stats;...
  • Page 15 CONNECTION DIAGRAM SCHEMATIC DIAGRAM (NATURAL GAS & PROPANE) TO 115VAC FIELD EQUIPMENT DISCONNECT SWITCH NOTE #1 FRS2 NOTE #8 GROUND LO-GAS-HEAT BHI / LOR MED LO BLWM BHT / CLR LGPS HI-GAS-HEAT NOTE #15 SPARE GRN/YEL GRN/YEL BLWR SPARE MED HI HI-COOL NOTE #4 FRS1...
  • Page 16 furnace blower motor BLWM on low-cooling speed b. Two-Speed Heat Pump Cooling (same speed as for low-gas heat). The R to Y1-and-Y2 (1.) The thermostat R to G circuits start the furnace blower circuits start the outdoor unit on high-cooling speed, motor BLWM on low-cool speed.

  • Page 17: Start-Up Procedures

    Verify furnace model. Table 9 can only be used for model been redrilled, check orifice hole with a numbered drill bit of 58UXT furnaces. correct size. Never redrill an orifice. A burr-free and squarely d. Find installation altitude in Table 9.
  • Page 18 Table 9—Model 58UXT Orifice Size and Manifold Pressure for Correct Input (Tabulated Data Based on 20,000 Btuh High Heat/13,000 Btuh Low Heat per Burner Derated 4 Percent for Each 1000 Ft Above Sea Level)* SPECIFIC GRAVITY OF NATURAL GAS ALTITUDE AVG GAS 0.58...
  • Page 19 Table 9—Model 58UXT Orifice Size and Manifold Pressure for Correct Input—Continued (Tabulated Data Based on 20,000 Btuh High Heat/13,000 Btuh Low Heat per Burner Derated 4 Percent for Each 1000 Ft Above Sea Level)* SPECIFIC GRAVITY OF NATURAL GAS ALTITUDE AVG GAS 0.58...
  • Page 20 Table 9—Model 58UXT Orifice Size and Manifold Pressure for Correct Input—Continued (Tabulated Data Based on 20,000 Btuh High Heat/13,000 Btuh Low Heat per Burner Derated 4 Percent for Each 1000 Ft Above Sea Level)* SPECIFIC GRAVITY OF NATURAL GAS ALTITUDE AVG GAS 0.58...
  • Page 21 h. When correct input is obtained, replace caps that conceal gas valve regulator adjustment screws. Main burner flame should be clear blue, almost transparent. (See Fig. 22.) BURNER FLAME BURNER BURNER ORIFICE A93059 Fig. 20—Burner Orifice MANIFOLD A89020 LOW-FIRE ON/OFF ADJUSTMENT SWITCH Fig.
  • Page 22 m. Remove jumper across R, W/W1, and W2 thermostat Table 10—Gas Rate (CU FT/HR) connections to terminate call for heat. SIZE OF TEST DIAL SIZE OF TEST DIAL SECONDS SECONDS 5. Set temperature rise. FOR 1 FOR 1 REVOLUTION REVOLUTION Cu Ft Cu Ft Cu Ft...

  • Page 23: Check Safety Controls

    1. Check primary limit control. This control shuts off the combustion control system and Recheck the temperature rise. It must be within the limits energizes the circulating-air blower motor if the furnace specified on the unit rating plate. Recommended operation is overheats.
  • Page 24 [ ] Classroom Service Training A94328 Copyright 2001 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 58uxt5si Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

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58uxt series

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