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Owner's Manual
58MEB
Deluxe 4---Way Multipoise
Fixed---Capacity Condensing Gas Furnace
Sizes 040---120, Series 100
Visit www.carrier.com
NOTE:
Read the entire instruction manual before starting
the installation.
NOTE: This furnace can be installed as a
or (1-pipe) non-direct vent
Special Venting Requirements for Installations in Canada
Installation in Canada must conform to the requirements of CSA
B149 code. Vent systems must be composed of pipe, fittings,
cements, and primers listed to ULC S636. The special vent
fittings and accessory concentric vent termination kits and
accessory external drain trap have been certified to ULC S636 for
use with those IPEX PVC vent components which have been
certified to this standard. In Canada, the primer and cement must
be of the same manufacturer as the vent system - - IPEX System
636, PVC/CPVC Primer, Purple Violet for Flue Gas Venting and
IPEX System 636, PVC Cement for Flue Gas Venting, rated
Class IIA, 65 deg C. must be used with this venting system - - do
not mix primers and cements from one manufacturer with a vent
system from a different manufacturer. Follow the manufacturer's
instructions in the use of primer and cement and never use primer
or cement beyond its expiration date.
The safe operation, as defined by ULC S636, of the vent system
is based on following these installation instructions, the vent
system manufacturer's installation instructions, and proper use of
primer and cement. All fire stop and roof flashing used with this
system must be UL listed material. Acceptability under Canadian
standard CSA B149 is dependent upon full compliance with all
installation instructions. Under this standard, it is recommended
that the vent system be checked once a year by qualified service
personnel.
The authority having jurisdiction (gas inspection authority,
municipal building department, fire department, etc) should be
consulted before installation to determine the need to obtain a
permit.
Installation, Start---up and
Operating Instructions
(2-pipe) direct vent
condensing gas furnace.
Consignes spéciales pour l'installation de ventillation au Canada
L'installation faite au Canada doit se conformer aux exigences du
code CSA B149. Ce systême de ventillation doit se composer de
tuyaux, raccords, ciments et apprêts conformes au ULC S636. La
tuyauterie de ventillation des gaz, ses accessoires, le terminal
concentrique mural ainsi que l'ensemble du drain de condensat
extérieur ont été certifiés ULCS 636 pour l'application des
composantes IPEX PVC qui sont certifiées à ce standard. Au
Canada l'apprêt et le ciment doivent être du même manufacturier
que le systême de ventillation - - IPEX Système 636, Apprêt
PVC/CPVC. Mauve Violette pour conduit en évacuation des gaz
et IPEX Système 636, ciment pour PVC pour conduit en
évacuation des gaz, évalué CLASSE IIA, 65 deg. C. doit ëtre
utilisé avec ce systèeme d'évacuation - - ne pas mélanger l'apprêt
et le ciment d'un manufacturier avec le systême de ventillation
d'un autre manufacturier. Bien suivre les indications du
manufacturier lors de l'utilisation de l'apprêt et du ciment et ne
pas utiliser ceux- -ci si la date d'expiration est atteinte.
L'opération sécuritaire, tel que définit par ULC S636, du système
de ventilation est basé sur les instructions d'installation suivantes,
ainsi que l'usage approprié de l'apprêt et ciment. Tout arrët feu et
solin de toit utilisés avec ce système doivent être des matériaux
listés UL. L'acceptation du standard Canadien CSA B419 est
directement relié à l'installation conforme aux instructions ci- -
haut mentionnées. Le standard Canadien recommande l'
inspection par un personel qualifié et ce, une fois par année.
Les autoritées ayant juridiction (inspecteurs de gas, inspecteurs
en bâtiments, département des incendies, etc) devraient être
consultées avant l'installation afin de déterminer si un permis est
requis.
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Table of Contents
Related Manuals for Carrier 58MEB
Summary of Contents for Carrier 58MEB
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Page 1: Operating Instructions
58MEB Deluxe 4---Way Multipoise Fixed---Capacity Condensing Gas Furnace Sizes 040---120, Series 100 Installation, Start---up and Operating Instructions Visit www.carrier.com NOTE: Read the entire instruction manual before starting the installation. (2-pipe) direct vent NOTE: This furnace can be installed as a or (1-pipe) non-direct vent condensing gas furnace. - Page 2 Required Notice for Massachusetts Installations IMPORTANT The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows: 5.08: Modifications to NFPA- -54, Chapter 10 2) Revise 10.8.3 by adding the following additional requirements: a. For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:...
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Page 3: Table Of Contents
SAFETY CONSIDERATIONS AIRFLOW CAUTION UNIT RELIABILITY HAZARD UPFLOW Failure to follow this caution may result in unit component damage. Application of this furnace should be indoors with special attention given to vent sizing and material, gas input rate, air HORIZONTAL HORIZONTAL temperature rise, unit leveling, and unit sizing. - Page 4 CNRV, or when Coil Box Part No. KCAKC is used. condition as created by the circulating air blower, causing a The 58MEB 040 through 120 size units are CSA design-certified flame rollout and/or drawing combustion products into for use in manufactured (mobile) homes when installed as a the structure.
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Page 5: Codes And Standards
These furnaces are shipped with the following materials to assist National Fire Protection Association Inc., Batterymarch Park, in proper furnace installation. These materials are shipped in the Quincy, MA 02269; or for only the NFGC contact the main blower compartment. American Gas Association, 400 N. - Page 6 A08321 Fig. 2 - - Dimensional Drawing - - 6 - -...
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Page 7: Electrostatic Discharge (Esd) Precautions
INSTALLATION This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size furnaces are only approved for altitudes 0 - 7,000 ft. (0 - 2,135m). An accessory kit, supplied by the manufacturer, shall be used to convert to propane gas use or may be required for some natural gas applications. This furnace is for indoor installation in a building constructed on site. -
Page 8: Introduction
INTRODUCTION return duct attachment to assist in filter removal. g. Remove and discard casing drain hole plug button The model 58MEB 4-way multipoise, Gas-Fired, Category IV, from desired side. condensing furnace is available in model sizes ranging from input capacities of 40,000 to 120,000 Btuh as direct vent (2-pipe) h. - Page 9 FURNACE BLOWER SHELF CONDENSATE DOOR TRAP FURNACE CONDENSATE DOOR FURNACE TRAP (INSIDE) FURNACE SIDE SIDE (124mm) (102mm) (146mm) (146mm) (102mm) FIELD FIELD (667mm) (19mm) DRAIN DRAIN (667mm) (38mm) ALTERNATE DRAIN CONN CONN TUBE LOCATION SIDE VIEW FRONT VIEW END VIEW FRONT VIEW CONDENSATE TRAP DRAIN TUBE LOCATION...
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Page 10: Downflow Applications
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 11 COLLECTOR BOX DRAIN TUBE (BLUE) PLUG PLUG COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX EXTENSION TUBE COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX COLLECTOR BOX DRAIN TUBE (BLUE EXTENSION TUBE &...
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Page 12: Horizontal Left (Supply-Air Discharge) Applications
c. Install cap and clamp on UPPER inducer CONDENSATE TRAP LOCATION housing drain connection where molded drain The condensate trap must be removed from the factory-installed tube was removed. blower shelf location and relocated in selected application d. Use inducer housing drain tube (violet label and location as shown in Fig. -
Page 13: Horizontal Right (Supply-Air Discharge) Applications
PLUG COLLECTOR BOX AUXILIARY "J" BOX DRAIN TUBE (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 14 COMBUSTION - AIR INTAKE VENT A 12-IN. (305 mm) MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT / 1.5 TO 2.4 M) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM EXITING THE VENT PIPE. ″ (762 mm)MIN WORK AREA ″...
- Page 15 COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX EXTENSION TUBE PLUG COLLECTOR BOX TUBE (PINK) AUXILARY “J” BOX RELOCATED HERE CONDENSATE TRAP COLLECTOR BOX DRAIN TUBE (BLUE AND WHITE STRIPED) INDUCER HOUSING DRAIN TUBE (VIOLET) COLLECTOR BOX EXTENSION TUBE A00214 Fig.
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Page 16: Location
LOWER inducer housing drain connection to condensate trap. e. Determine appropriate length, cut, and connect tube to condensate trap. f. Clamp tube to prevent any condensate leakage. 3. Relief Port Tube LEVEL (0”) FRONT FRONT TO 1/2” (13mm) Refer to Pressure Switch Tubing section for connection MIN 1/4”... -
Page 17: Furnace Location Relative To Cooling Equipment
WARNING CAUTION FIRE, INJURY OR DEATH HAZARD UNIT DAMAGE HAZARD Failure to follow this warning could result in fire, property This gas furnace may be used for construction heat damage, personal injury or death. provided that: Do not install furnace on its back. Safety control operation -The furnace is permanently installed with all electrical wiring, will be adversely affected. -
Page 18: Hazardous Locations
Step 3—Hazardous Locations WARNING WARNING FURNACE CORROSION HAZARD Failure to follow this warning could result in reduced furnace FIRE, EXPLOSION, INJURY OR DEATH HAZARD component life. Failure to follow this warning could result in personal injury, Air for combustion must not be contaminated by halogen death or property damage. - Page 19 S Spaces having at least 50 cubic feet per 1,000 Btuh may use for combined input of all gas appliances in the space the INDOOR COMBUSTION AIR, STANDARD or per Fig. 18 and Table 1. KNOWN AIR INFILTRATION METHOD. 3. ONE OUTDOOR OPENING requires: Outdoor Combustion Air Method a.
- Page 20 1 SQ IN. CIRCULATING AIR PER 4000 VENT THROUGH ROOF DUCTS DUCTS BTUH* O UTDOORS 12" MAX (305mm) 12 ″ MAX 12 ″ (305mm) (305mm) 1 SQ IN. VENT 1 SQ IN. PER 2000 THR OUGH PER 1000 BTUH* R OOF BTUH* IN DOOR 1 SQ IN .
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Page 21: Installation
b. Outdoor opening size reduction Factor is 1 minus the 2. An attic or crawlspace may be considered a space that freely communicates with the outdoors provided there are Ratio in a. above. adequate permanent ventilation openings directly to c. Minimum size of Outdoor openings shall be the size outdoors having free area of at least 1-in. -
Page 22: Installation In Horizontal Applications
Step 3—Installation in Horizontal Applications FURNACE CAUTION (OR COIL CASING WHEN USED) UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation. COMBUSTIBLE FLOORING The entire length of furnace MUST be supported when furnace is used in a horizontal position to ensure proper draining. -
Page 23: Air Ducts
Table 3 – Opening Dimensions --- In. (mm) FURNAC PLENUM OPENING FLOOR OPENING APPLICATION CASING WIDTH Upflow Applications 16 (406) 24-1/8 (613) 16-5/8 (422) 24-3/4 (629) Downflow Applications on Non-Combustible Flooring 15-7/8 (403) 19 (483) 16-1/2 (419) 19-5/8 (498) Downflow Applications on Combustible Flooring Using KGASB Subbase 17-1/2 Furnace with or without CAP , CAR, CNPV, CNRV Coil Assembly or KCAKC 15-1/8 (384) - Page 24 COMBUSTION-AIR INTAKE (NON-DIRECT VENT/1-PIPE COMBUSTION-AIR PIPE APPLICATION) (DIRECT VENT/2-PIPE APPLICATION,ALL SIZES) VENT 3-IN. (76 mm) MINIMUM CLEARANCE TO COMBUSTION-AIR INTAKE IS REQUIRED (NON-DIRECT VENT/1-PIPE 8 -IN. (10 mm) ROD APPLICATION,) ANGLE ″ (146 mm) IRON OR EQUIVALENT ALTERNATE SUPPORT LOCATION 4-IN. (102 mm) MIN 8-IN.
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Page 25: Filter Arrangement
back to attach any portion of return-air duct. Bypass humidifier CAUTION connections should be made at ductwork or coil casing sides exterior to furnace. Step 5—Filter Arrangement CUT HAZARD Failure to follow this caution may result in personal injury. WARNING Use care when cutting support rods in filters to protect against flying pieces and sharp rod ends. - Page 26 Table 5 – Maximum Capacity of Pipe* 21-IN. (533mm) WIDE ⁄ -IN. (444mm) WIDE CASINGS ONLY: CASINGS ONLY: SUPPORT RODS (3) NOMINAL LENGTH OF PIPE --- FT (M) INTERNAL INSTALL FIELD-SUPPLIED EXTEND 1/4" (6mm) ON IRON PIPE DIA. SIZE FILTER FILLER STRIP EACH SIDE OF FILTER AND IN.
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Page 27: Electrical Connections
Gas line grommet (factory-supplied loose parts bag) should be WARNING used when installing gas piping. Gas line entry hole filler plug should be installed in unused gas line entry hole. (See Fig. 30.) NOTE: The gas valve inlet pressure tap connection is suitable to FIRE OR EXPLOSION HAZARD use as test gauge connection providing test pressure DOES NOT Failure to follow the warning could result in personal injury,... - Page 28 FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING NOTE 2 THERMOSTAT FIVE WIRE FIELD-SUPPLIED TERMINALS DISCONNECT THREE-WIRE HEATING-ONLY 208/230- OR BLOWER DOOR SWITCH 460-V THREE PHASE 208/230-V SINGLE PHASE AUXILIARY 115-V FIELD- J-BOX SUPPLIED NOTE 1 DISCONNECT CONDENSING...
- Page 29 WARNING FACTORY INSTALLED FIRE HAZARD LOCATION Failure to follow this warning could result in personal injury, death, or property damage. POWER ENTRY HOLE Do not connect aluminum wire between disconnect switch FILLER PLUG (FACTORY- UNUSED 7/8-IN. (22 mm) furnace. Use only copper wire. (See Fig. 32.) SUPPLIED LOOSE PARTS BAG) DIAMETER POWER ENTRY HOLES...
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Page 30: Removal Of Existing Furnaces From Common Vent Systems
NSCNGPIC. proper connection. The 58MEB can be vented as either a direct vent or as a non-direct vent application. A direct vent system shall be installed in accordance with the direct vent (2-pipe) procedures in 2. - Page 31 A08342 Fig. 35 - - Wiring Diagram - - 31 - -...
- Page 32 Multistory and common venting are prohibited. WARNING DIRECT VENT/2-PIPE SYSTEM In a direct-vent (2-pipe) system, all air for combustion is taken FIRE AND EXPLOSION HAZARD directly from outdoor atmosphere, and all flue products are discharged to outdoor atmosphere. A factory accessory vent Failure to follow this warning could result in property damage, termination kit MUST be used in a direct vent (2-pipe) system.
- Page 33 BLOWER OFF-DELAY BLOWER OFF-DELAY TWINNING AND/OR COMPONENT TEST TERMINAL 24-V THERMOSTAT TERMINALS HUMIDIFIER TERMINAL (24-VAC 0.5 AMP. MAX) TEST / TWIN 3-AMP FUSE SEC-2 SEC-1 24VAC LED OPERATION & DIAGNOSTIC LIGHT TRANSFORMER HEAT 24-VAC CONNECTIONS BLOWER SPEED COOL SELECTION TERMINALS SPARE 2 SPARE 1 PL1-LOW VOLTAGE EAC-2...
- Page 34 A05009 Table 8 – Direct Vent Termination Clearance - - 34 - -...
- Page 35 A05013 Table 9 – Other than Direct Vent Termination Clearance - - 35 - -...
- Page 36 Table 10 – Maximum Allowable Exposed Vent Pipe Length (FT / M) With and Without Insulation in Winter Design Temperature Ambient* WINTER DESIGN MAX PIPE WITHOUT WITH 3/8–IN. OR THICKER FURNACE SIZE TEMPERATURE DIAMETER INSULATION INSULATION† IN (mm) FT (M) FT (M) °F 〈°C) 20 (---7)
- Page 37 NOTE: Ensure combustion air pipe termination is similar to Ensure combustion air pipe termination is similar to those as shown in Fig. 42 so that it will not be susceptible to area where those as shown in Fig. 44 so that it will not be susceptible to area light snow or others sources of moisture could be pulled in.
- Page 38 Table 11 – Maximum Allowable Pipe Length --- Ft (M) NON-DIRECT DIRECT VENT (2-PIPE) ONLY VENT (1-PIPE) NUMBER OF 90° ELBOWS UNIT SIZE ONLY ALTITUDE (FT) (BTUH) TERMINATION PIPE DIA PIPE DIA TYPE IN. (mm)* IN. (mm)* 1 (25) 1 (25) (1.5) 2 Pipe or 2-in 1-1/2 (38)
- Page 39 Table 11—Maximum Allowable Pipe Length --- Ft (M) (Continued) NON-DIRECT VENT (1-PIPE) DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS UNIT SIZE ONLY ALTITUDE (FT) (BTUH) TERMINATION PIPE DIA --- PIPE DIA --- TYPE IN (mm)* IN (mm)* 1-1/2 (38) 1-1/2 (38) (19.5) (18.0)
- Page 40 Table 11—Maximum Allowable Pipe Length --- Ft (M) (Continued) NON-DIRECT DIRECT VENT (2-PIPE) ONLY VENT (1-PIPE) NUMBER OF 90° ELBOWS UNIT SIZE ONLY ALTITUDE (FT) (BTUH) TERMINATION PIPE DIA PIPE DIA TYPE IN. (mm)* IN. (mm)* 1-1/2 (38) 1-1/2 (38) (17.4) (15.8) (14.3)
- Page 41 Table 11—Maximum Allowable Pipe Length --- Ft (M) (Continued) NON-DIRECT UNIT SIZE ALTITUDE (FT) DIRECT VENT (2-PIPE) ONLY VENT (1-PIPE) NUMBER OF 90° ELBOWS (BTUH) ONLY TERMINATION PIPE DIA PIPE DIA TYPE IN. (mm)* IN. (mm)* 1-1/2 (38) 1-1/2 (38) (14.9) (13.4) (11.9)
- Page 42 Table 11—Maximum Allowable Pipe Length --- Ft (M) (Continued) NON-DIRECT UNIT SIZE VENT (1-PIPE) ALTITUDE (FT) DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (BTUH) ONLY TERMINATION PIPE DIA PIPE DIA TYPE IN. (mm)* IN. (mm)* 2 Pipe or 2-in 1-1/2 (38) 1-1/2 (38) (12.8)
- Page 43 COMBUSTION AIR PIPE (DIRECT VENT /2-PIPE) 12 ″ MIN COMBUSTION AIR COMBUSTION AIR (305 mm) 12 ″ MIN PIPE (NON-DIRECT PIPE (NON-DIRECT (305 mm) VENT/1-PIPE) VENT/1-PIPE) VENT PIPE VENT PIPE COMBUSTION AIR PIPE (DIRECT VENT/2-PIPE) HORIZONTAL TO ROOF HORIZONTAL TO SIDEWALL COMBUSTION AIR PIPE (DIRECT VENT /2-PIPE)
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Page 44: Vent Termination
Roof Termination (Preferred) Vent Maintain 12 in (305mm) minimum clearance above highest anticipated snow level maximum of 24 in. (610mm) above roof Abandoned masonry used as raceway (per code) 12 in. min. (305 mm)from overhang or roof 6 in. (152mm) minimum clearance between wall and end of vent pipe. - Page 45 surfaces with a corrosive resistance material due to corrosive area shown in Fig. 42 or in Fig. 43 per application in outside combustion products of vent system. ambient by insulating pipe as indicated in Table 10. NOTE: (Direct Vent/2-Pipe system ONLY) A factory accessory 1.
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Page 46: Condensate Drain
4. Check required dimensions as shown in Fig. 42. Multiventing and Vent Terminations PERSONAL INJURY AND PROPERTY DAMAGE When 2 or more 58MEB Furnaces are vented near each other, HAZARD each furnace must be individually vented. NEVER common vent Failure to follow this warning could result in property damage, or breach vent 58MEB furnaces. -
Page 47: Start-Up, Adjustments, And Safety Check
Step 2—Prime Condensate Trap With Water CAUTION CONDENSATE TRAP UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation. Condensate trap must be PRIMED or proper draining may not WIRE TIE(S) occur. The condensate trap has 2 internal chambers which can ONLY be primed by pouring water into the inducer drain side of condensate trap. -
Page 48: Sequence Of Operation
The wall thermostat “calls for heat,” closing the R to W circuit. The furnace control performs a self-check, verifies the pressure switch contacts PRS are open, and starts the inducer motor IDM. a. Inducer Prepurge Period- As the inducer motor IDM comes up to speed, the pressure switch contacts PRS close to begin a 15-second prepurge period. - Page 49 additional 90 seconds. Jumper Y/Y2 to DHUM to reduce the cooling off-delay to 5 seconds. (See Fig. 31.) b. Two-Speed Cooling (See Fig. 49, 51, 53, and 54 for thermostat connections.) The thermostat closes the R to G-and-Y1 circuits for low-cooling or closes the R to G-and-Y1-and-Y2 circuits for high-cooling.
- Page 50 HUMIDFIER (24VAC) A00270 A02102 Fig. 50 - - Single-Stage Furnace with Single-Speed Fig. 52 - - Dual Fuel Thermostat with Single- -Stage Furnace Heat Pump (Dual Fuel) and Single- -Speed Heat Pump HUMIDFIER (24VAC) A00271 A02103 Fig. 51 - - Single-Stage Furnace with Two-Speed Fig.
- Page 51 HUMIDFIER (24VAC) A02161 Fig. 54 - - Two-Stage Thermostat with Single-Stage Furnace and Two-Speed Air Conditioner NOTES FOR FIGURE 48-54 1. Heat pump MUST have a high pressure switch for dual fuel applications. 2. Refer to outdoor equipment Installation Instructions for additional information and setup procedure. 3.
- Page 52 CONTINUOUS BLOWER MODE HEAT PUMP MODE (See Fig. 50 - - 53 for thermostat connections.) When the R to G circuit is closed by the thermostat, the blower motor BLWM will operate on continuous-blower speed (can be adjusted to When installed with a heat pump, the furnace control automatically FAN, HEAT, or COOL speed) at the thermostat.
- Page 53 Table 13 – Model 58MEB Orifice Size and Manifold Pressure for Correct Input For Use with 040 through 120 Size Furnaces Only (Tabulated Data is Based on 20,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) *...
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Page 54: Adjustments
Table 13—Model 58MEB Orifice Size and Manifold Pressure for Correct Input (Continued) For Use with 040 through 120 Size Furnaces Only (Tabulated Data is Based on 20,000 Btuh per Burner, Derated 2% for Each 1000 Ft Above Sea Level) * A08375B *Orifice numbers 45 shown in BOLD are factory installed. - Page 55 Verify furnace model and size. Table 13 can only be been redrilled, check orifice hole with a numbered drill bit of used for model 58MEB furnaces with rating plate correct size. Never redrill an orifice. A burr-free and squarely heating inputs (1000’s Btuh) of 040 through 120.
- Page 56 Table 14 – Altitude Derate Multiplier for U.S.A. e. Replace gas valve regulator adjustment screw seal cap. f. Replace burner enclosure front and verify adjusted gas ALTITUDE PERCENT OF DERATE MULTIPLIER input rate using method outlined in Item 3. FT (M) DERATE FACTOR* g.
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Page 57: Check Safety Controls
(READ following CAUTION before changing taps) ADJUST BLOWER OFF DELAY (HEAT MODE) The blower off delay has 4 adjustable settings from 90 sec to 180 sec. (See Table 17.) The blower off delay jumpers are located on CAUTION the furnace control (See Fig. 36). To change the blower off delay setting, move the jumper from one set of pins on the control to the pins used for the desired blower off delay. - Page 58 2. Remove outer furnace door and disconnect inducer motor from wire harness. 3. Turn on 115-v power to furnace. THERMOSTAT SUBBASE TERMINALS WITH THERMOSTAT REMOVED HOOK-AROUND VOLT/AMMETER R Y W G 10 TURNS FROM UNIT 24-VOLT TERMINAL BLOCK EXAMPLE: 5.0 AMPS ON AMMETER = 0.5 AMPS FOR THERMOSTAT SETTING 10 TURNS AROUND JAWS A80201...
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Page 59: Checklist
CHECKLIST—DIRECT VENT (2-PIPE) INSTALLATION LOAD CALCULATION Condensate Drain __________ Unit Level or Pitched Forward __________ Heating Load (Btuh) __________ Internal Tubing Connections Free __________ Cooling Load (Btuh) of Kinks and Traps __________ Furnace Model Selection __________ External Drain Connection Leak Tight and sloped COMBUSTION AIR AND VENT PIPING Termination Location __________... - Page 60 __________ Primary Limit __________ Pressure Switch Catalog No:58MEB --- 01SI Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 07/08 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.