1. Manuals
  2. Brands
  3. Carrier Manuals
  4. Furnace
  5. GAS FURNACE 58MXA
  6. Installation, start-up, and operating instructions manual

Carrier 58MXA Installation, Start-Up, And Operating Instructions Manual

Hide thumbs Also See for 58MXA:
Table of Contents

Advertisement

Quick Links

See also: Service and Maintenance Instructions , Installation, Start-up, and Operating Instructions Manual
Installation, Start-Up, and Operating Instructions
NOTE: Read the entire instruction manual before starting the
installation.
This symbol → indicates a change since the last issue.
Index
DIMENSIONAL DRAWING........................................................2
SAFETY CONSIDERATIONS .....................................................3
Clearances to Combustibles......................................................3
INTRODUCTION ..........................................................................4
APPLICATIONS ......................................................................4-11
General ......................................................................................4
Upflow Applications..............................................................4-6
Downflow Applications.........................................................7-8
LOCATION ............................................................................11-12
General...............................................................................11-12
Hazardous Locations...............................................................12
INSTALLATION....................................................................12-16
Leveling Legs (If Desired)................................................12-13
Installation On a Concrete Slab .............................................13
Applications) ................................................................13-14
Installation In Horizontal Applications ..................................14
Filter Arrangement..................................................................15
Bottom Closure Panel.............................................................15
Gas Piping...............................................................................16
ELECTRICAL CONNECTIONS...........................................16-19
115-v Wiring......................................................................16-17
24-v Wiring........................................................................17-19
Accessories..............................................................................19
DIRECT VENTING ...............................................................20-27
Common Vent Systems.....................................................20
Combustion-Air and Vent Piping .....................................20-25
Kit Installation..............................................................25-27
Multiventing and Vent Termination.......................................27
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. 565-858
Tab 6a 8a
→For Sizes 040-120 Series 121
A93040
Page
Printed in U.S.A.
4-Way Multipoise Fixed-Capacity
Condensing Gas Furnace
®
As an ENERGY STAR Partner, Carrier Corporation has
determined that this product meets the ENERGY STAR
guidelines for energy efficiency.
HORIZONTAL
LEFT
AIRFLOW
Fig. 1-Multipoise Orientations
CONDENSATE DRAIN ........................................................27-29
General...............................................................................27-29
Application ..............................................................................29
Condensate Drain Protection ..................................................29
SEQUENCE OF OPERATION..............................................30-31
Heating Mode..........................................................................30
Cooling Mode .........................................................................30
Continuous Blower Mode.......................................................30
Heat Pump Mode ....................................................................30
Component Test.................................................................30-31
START-UP PROCEDURES ..................................................31-35
General ....................................................................................31
Prime Condensate Trap With Water ......................................31
Purge Gas Lines......................................................................31
Adjustments .......................................................................31-35
Set Gas Input Rate ............................................................31-34
Set Temperature Rise ........................................................34-35
Adjust Blower Off Delay (Heat Mode) .................................35
Set Thermostat Heat Anticipator............................................35
CHECK SAFETY CONTROLS..................................................35
Check Primary Limit Control.................................................35
Check Pressure Switch ...........................................................35
CHECKLIST...........................................................................35-36
Form 58MXA-4SI
Pg 1
58MXA
ama
A PP R O VED
R
AIRFLOW
UPFLOW
HORIZONTAL
RIGHT
DOWNFLOW
AIRFLOW
AIRFLOW
A93041
7-95
Replaces: 58MXA-3SI

Advertisement

Table of Contents
loading

Related Manuals for Carrier 58MXA

Summary of Contents for Carrier 58MXA

  • Page 1: Table Of Contents

    Condensing Gas Furnace Installation, Start-Up, and Operating Instructions →For Sizes 040—120 Series 121 ® A PP R O VED As an ENERGY STAR Partner, Carrier Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency. AIRFLOW A93040 NOTE: Read the entire instruction manual before starting the installation.

  • Page 3: Safety Considerations

    SAFETY CONSIDERATIONS ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified person- nel should install, repair, or service heating equipment. Untrained Electrostatic discharge can affect electronic components. personnel can perform basic maintenance functions such as clean- Take precautions during furnace installation and servicing to ing and replacing air filters.

  • Page 4: Introduction

    INTRODUCTION temperature rise, unit leveling, and unit sizing. Improper The 58MXA Multipoise Condensing Gas-Fired Furnaces are installation or misapplication of furnace can require excessive A.G.A./C.G.A. certified for natural and propane gases and for servicing or cause premature component failure.
  • Page 5 FURNACE BLOWER SHELF CONDENSATE DOOR TRAP FURNACE CONDENSATE DOOR FURNACE TRAP (INSIDE) FURNACE SIDE SIDE FIELD FIELD DRAIN DRAIN CONN CONN ALTERNATE DRAIN TUBE LOCATION SIDE VIEW FRONT VIEW END VIEW FRONT VIEW CONDENSATE TRAP DRAIN TUBE LOCATION HORIZONTAL DOWNFLOW AND ALTERNATE UPFLOW APPLICATIONS APPLICATIONS EXTERNAL UPFLOW APPLICATIONS...
  • Page 6 PLUG PLUG COLLECTOR BOX COLLECTOR BOX DRAIN TUBE (BLUE DRAIN TUBE (BLUE & WHITE STRIPED) & WHITE STRIPED) COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX COLLECTOR BOX TUBE (GREEN) TUBE (GREEN) COLLECTOR BOX INDUCER HOUSING DRAIN TUBE (BLUE) (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX...

  • Page 7: Downflow Applications

    Step 3—Downflow Applications c. Connect LOWER collector box drain connection to con- densate trap. A downflow furnace application is where furnace blower is located above combustion and controls section of furnace and conditioned (1.) Condensate Trap Located on Left Side of Casing air is discharged downwards.

  • Page 8: Horizontal Left (Supply-Air Discharge) Applications

    d. Use inducer housing drain tube (violet label and factory- supplied in loose parts bag) to connect LOWER inducer Local codes may require a drain pan under entire furnace and housing drain connection to the condensate trap. condensate trap when a condensing furnace is used in an attic e.

  • Page 9: Horizontal Right (Supply-Air Discharge) Applications

    PLUG COLLECTOR BOX AUXILIARY "J" BOX DRAIN TUBE RELOCATED HERE (BLUE AND WHITE STRIPED) CONDENSATE COLLECTOR BOX TRAP TUBE (GREEN) INDUCER HOUSING COLLECTOR DRAIN TUBE (VIOLET) BOX EXTENSION COLLECTOR BOX DRAIN TUBE DRAIN TUBE (BLUE) COLLECTOR BOX EXTENSION TUBE DRAIN TUBE COUPLING COLLECTOR BOX TUBE (PINK) RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR 040, 060, AND 080 HEATING INPUT FURNACES...
  • Page 10 COMBUSTION – AIR INTAKE VENT A 12-IN. MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM ″ EXITING THE VENT PIPE. WORK AREA ″ ⁄ MANUAL SHUTOFF ACCESS OPENING GAS VALVE FOR TRAP DRAIN...

  • Page 11: Location

    COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX EXTENSION TUBE PLUG COLLECTOR BOX TUBE (PINK) CONDENSATE TRAP COLLECTOR BOX DRAIN TUBE (BLUE AND WHITE STRIPED) INDUCER HOUSING DRAIN TUBE (VIOLET) COLLECTOR BOX EXTENSION TUBE A93303 Fig. 11—Horizontal Right Tube Configuration 5.

  • Page 12: Furnace Location Relative To Cooling Equipment

    FRONT °F °F 32°F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED RETURN MAX 85°F MIN 55°F A93042 NOTE: These furnaces are designed for a minimum continuous A93058 return-air temperature of 60°F or intermittent operation down to 55°F such as when used with a night setback thermostat. Return-air temperature must not exceed a maximum of 85°F.

  • Page 13: Installation On A Concrete Slab

    ″ ⁄ FURNACE ″ ⁄ ″ ⁄ ″ ⁄ PLENUM A73383 Fig. 14—Furnace on a Concrete Slab (Non-Garage Installation) ″ ⁄ Step 3—Installation on a Combustible Floor (Downflow Applications) 1. Cut and frame hole in floor per dimensions in Installation ″...

  • Page 14: Installation In Horizontal Applications

    Do not bend duct flanges inward as shown in Fig. 15. This will affect airflow across heat exchangers and may cause limited cycling or premature heat exchanger failure. Remove duct flange completely or bend it inward a minimum of 210° FURNACE (OR COIL CASING as shown in Fig.

  • Page 15: Filter Arrangement

    Step 5—Filter Arrangement 3 ″ Never operate unit without a filter or with blower access ″ panel removed. Factory-supplied washable framed filters are shipped in blower 1 ″ compartment. Determine location for filter and relocate filter retaining wire if necessary. See Table 1 to determine correct filter size for desired filter location.

  • Page 16: Gas Piping

    Step 7—Gas Piping Gas piping must be installed in accordance with national and local SUPPLY codes. Refer to current edition of NFGC. Canadian installations MANUAL must be made in accordance with NSCNGPIC and all authorities SHUTOFF having jurisdiction. Gas supply line should be a separate line VALVE running directly from meter to furnace, if possible.

  • Page 17: 24-V Wiring

    FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING FACTORY 115-VOLT WIRING NOTE 2 THERMOSTAT FIVE FIELD-SUPPLIED TERMINALS WIRE FUSED DISCONNECT THREE-WIRE 208/230- OR HEATING- 460-VOLT ONLY THREE PHASE 208/230- VOLT SINGLE AUXILIARY 115-VOLT FIELD- PHASE J-BOX SUPPLIED NOTE 1 CONTROL FUSED...

  • Page 19: Accessories

    Table 3—Electrical Data OPERATING VOLTS— UNIT UNIT MAX WIRE MAX FUSE OR VOLTAGE RANGE HERTZ— UNIT WIRE SIZE AMPACITY† LENGTH (FT)‡ CKT BKR AMPS** PHASE AMPS SIZE Max* Min* 040-08 115—60—1 040-12 115—60—1 10.0 →060-08 115—60—1 060-12 115—60—1 060-16 115—60—1 12.8 080-12 115—60—1...

  • Page 20: Direct Venting

    2-in. pipe. Any pipe size change should be made outside DIRECT VENTING furnace casing in vertical pipe. (See Fig. 27.) This allows proper The 58MXA Furnaces require a dedicated (one 58MXA furnace drainage of vent condensate. only) direct vent system. In a direct vent system, all air for combustion is taken directly from outside atmosphere, and all flue products are discharged to outside atmosphere.
  • Page 21 NOTES: NOTE: The minimum combustion-air and vent pipe length (each) 1. If installing 2 adjacent 58MXA Furnaces, refer to Multiventing and Vent for these furnaces is 5 ft. Short pipe lengths (5-8 ft) may discharge Terminations section for proper vent configurations.
  • Page 22 Table 5—Maximum Allowable Pipe Length (Ft) PIPE NUMBER OF 90° ELBOWS TERMINATION ALTITUDE UNIT SIZE DIAMETER TYPE (IN.)* 040-08 2 Pipe or 2-In. 1-1/2 040-12 Concentric →060-08 1-1/2 2 Pipe or 2-In. 060-12 Concentric 060-16 1-1/2 080-12 2 Pipe or 2-In. 080-16 Concentric 0 to 2000...
  • Page 23 Table 5—Maximum Allowable Pipe Length (Ft) Continued PIPE NUMBER OF 90° ELBOWS TERMINATION ALTITUDE UNIT SIZE DIAMETER TYPE (IN.)* 1-1/2 040-08 2 Pipe or 2-In. 040-12 Concentric →060-08 1-1/2 2 Pipe or 2-In. 060-12 Concentric 060-16 080-12 2 Pipe or 2-In. 6001 to 7000‡...
  • Page 24 12″ MIN 12″ MIN VENT PIPE VENT PIPE COMBUSTION-AIR PIPE COMBUSTION-AIR PIPE HORIZONTAL TO ROOF HORIZONTAL TO SIDEWALL COMBUSTION-AIR PIPE VENT PIPE COMBUSTION-AIR PIPE 12″ MIN 12″ MIN VENT PIPE VERTICAL TO ROOF VERTICAL TO SIDEWALL NOTE: A 12-in. minimum horizontal pipe section is recommended with short (5 to 8 ft) vent systems.

  • Page 25: Concentric Vent And Combustion-Air Termination Kit Installation

    b. Reposition neoprene inducer housing outlet cap and clamp Step 3—Concentric Vent and Combustion-Air to appropriate unused inducer housing connection. Tighten Termination Kit Installation clamp. NOTE: If these instructions differ from those packaged with termination kit, follow kit instructions. Combustion-air and vent pipes must terminate outside structure. A Inducer housing outlet cap must be installed and fully seated factory accessory termination kit must be installed in 1 of the against inducer housing.
  • Page 26 ROOF 18″ MAXIMUM BRACKET COUPLING COMBUSTION VERTICAL SEPARATION VENT BETWEEN COMBUSTION AIR AND VENT 8 3 / 4 ″ FOR 3″ KIT 6 3 / 4 ″ FOR 2″ KIT MAINTAIN 12 IN. MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24 IN.

  • Page 27: Multiventing And Vent Termination

    Fig. 34, rotate vent elbow 90° from position shown in Step 4—Multiventing and Vent Terminations Fig. 34. When 2 or more 58MXA Furnaces are vented near each other, 4. Disassemble loose pipe fittings. Clean and cement using same each furnace must be individually vented. NEVER common vent procedures as used for system piping.
  • Page 28 A85182 Fig. 36–Rooftop Termination (Dimension "A" is Touching or 2-In. Maximum Separation) VENT 1″ MAXIMUM VENT (TYP) COMBUSTION AIR VENT COMBUSTION VENT A93056 A93057 Fig. 37—Concentric Vent and Combustion-Air Roof Fig. 38—Concentric Vent and Combustion-Air Side Termination (Dimension "A" is Touching or Termination (Dimension "A"...

  • Page 29: Application

    When a condensate pump is required, select a pump which is approved for condensing furnace applications. To avoid conden- sate spillage, select a pump with an overflow switch. OPEN STAND PIPE FOR A/C OR HUMIDIFIER DRAIN 32°F MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED TO OPEN DRAIN...

  • Page 30: Sequence Of Operation

    SEQUENCE OF OPERATION If a "call for heat" (R-W) occurs while thermostat is in continuous blower mode, blower stops to allow furnace heat exchangers to heat up more quickly, then restarts at end of blower on delay period of 60 sec. Furnace control must be grounded for proper operation, or control will lockout.

  • Page 31: Start-Up Procedures

    Verify furnace model. Table 7 can only be used for model NOTE: Proper polarity must be maintained for 115-v wiring. If 58MXA furnaces. polarity is incorrect, control center fault indicator light will flash rapidly and furnace will not operate.
  • Page 32 Table 7—Model 58MXA Orifice Size and Manifold Pressure for Correct Input Rate (Tabulated Data Based on Altitude Up to 2000 Ft and 20,000 Btuh Per Burner) 0.58 0.60 0.62 0.64 0.66 0.68 0.70 0.72 GAS HEAT VALUE Mnfld Mnfld Mnfld...
  • Page 33 f. Proceed to item 3 to adjust manifold pressure. 2. Determine natural gas input rate by clocking gas meter then adjust manifold pressure per item 3. NOTE: Be sure all pressure tubing, combustion-air and vent pipes, and burner enclosure front are in place when checking input by clocking gas meter.

  • Page 34: Set Temperature Rise

    EXAMPLE: Btu heating input = Btu/cu ft X cu ft/hr Heating value of gas = 1010 Btu/cu ft Time for 1 revolution of 2-cu ft dial = 72 sec Gas rate = 100 cu ft/hr (from Table 8) Btu heating input = 100 X 1010 = 101,000 Btuh In this example, the orifice size and manifold pressure adjustment is within ±2 percent of the furnace input rate.

  • Page 35: Adjust Blower Off Delay (Heat Mode)

    Determine and adjust air temperature rise as follows: THERMOSTAT SUBBASE TERMINALS WITH 1. Place thermometers in return and supply ducts as near furnace THERMOSTAT REMOVED as possible. Be sure thermometers do not see heat exchanger HOOK-AROUND so that radiant heat does not affect readings. This practice is VOLT/AMMETER particularly important with straight-run ducts.
  • Page 36 [ ] Classroom Service Training A94328 Copyright 1995 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 58mxa4si Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Table of Contents