Carrier 58MVB Installation, Start-Up, And Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Carrier Manuals
  4. Furnace
  5. 58MVB Series
  6. Installation, start-up, and operating instructions manual

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

4-way multipoise variable-capacity condensing gas furnace for sizes 040—120, series 100
Hide thumbs Also See for 58MVB:
Table of Contents

Advertisement

Quick Links

See also: Service and Maintenance Instructions , Owner's Manual
Visit www.carrier.com
Installation, Start-Up, and Operating Instructions
NOTE: Read the entire instruction
manual before starting the installation.
A93040
NOTE: This furnace can be installed as a
or non-direct vent (1-pipe)
This symbol → indicates a change since the last issue.
Index
SAFETY CONSIDERATIONS .....................................................2
DIMENSIONAL DRAWING........................................................3
Clearances to Combustibles......................................................4
CODES AND STANDARDS........................................................5
INTRODUCTION ..........................................................................6
APPLICATIONS............................................................................6
General ......................................................................................6
Upflow Applications.................................................................6
Downflow Applications ............................................................8
LOCATION..................................................................................14
General ....................................................................................14
Low-Heat Only Installation ....................................................15
Hazardous Locations...............................................................16
Furnace Location and Application .........................................16
AIR FOR COMBUSTION AND VENTILATION ....................17
INSTALLATION .........................................................................19
Leveling Legs (If Desired) .....................................................19
Installation In Horizontal Applications ..................................20
Air Ducts.................................................................................20
General Requirements .......................................................20
Ductwork Acoustical Treatment .......................................20
Supply-Air Connections ....................................................20
Return-Air Connections.....................................................22
Filter Arrangement..................................................................23
Bottom Closure Panel.............................................................23
Gas Piping...............................................................................24
Electrical Connections ............................................................25
115-v Wiring......................................................................25
24-v Wiring........................................................................27
Accessories ........................................................................27
Common Vent Systems.....................................................27
Combustion-air and Vent Pipe Systems ................................27
Condensate Drain .........................................................................40
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
Tab 6a 8a
Variable-Capacity Condensing Gas Furnace
For Sizes 040-120, Series 100
direct vent (2-pipe)
condensing gas furnace.
Page
Printed in U.S.A.
Catalog No. 58MVB-1SI
4-Way Multipoise
ISO 9001:2000
REGISTERED
As an ENERGY STAR®
Partner, Carrier Corpora-
tion has determined that
this product meets the EN-
ERGY STAR® guidelines
for energy efficiency.
UPFLOW
HORIZONTAL
LEFT
DOWNFLOW
AIRFLOW
Fig. 1-Multipoise Orientations
General ....................................................................................40
Application ..............................................................................41
Condensate Drain Protection ..................................................42
General ....................................................................................42
Select Setup Switch Positions ................................................43
Prime Condensate Trap With Water ......................................44
Purge Gas Lines......................................................................44
Sequence of Operation............................................................44
(Adaptive Mode) ..........................................................45
Cooling Mode ....................................................................46
Thermidistat Mode ............................................................47
Super-Dehumidify Mode...................................................47
Continuous Blower Mode .................................................47
Heat Pump .........................................................................48
Component Test.................................................................48
Adjustments.............................................................................48
Set Gas Input Rate ............................................................48
Set Temperature Rise ........................................................56
Set Thermostat Heat Anticipator ......................................56
Pg 1
58MVB
ama
CERTIFIED
AIRFLOW
HORIZONTAL
RIGHT
AIRFLOW
AIRFLOW
A93041
8-05
Replaces: 58MVP-16SI
®

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 58MVB and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Carrier 58MVB

Summary of Contents for Carrier 58MVB

  • Page 1: Table Of Contents

    Set Thermostat Heat Anticipator ........56 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 Printed in U.S.A. Catalog No. 58MVB-1SI Pg 1 8-05 Replaces: 58MVP-16SI Tab 6a 8a...

  • Page 2: Safety Considerations

    SAFETY CONSIDERATIONS dling parts. The 58MVB Multipoise Condensing Gas-Fired Furnaces are CSA (formerly AGA and CGA) design-certified for natural and propane FURNACE RELIABILITY HAZARD gases (see furnace rating plate) and for installation in alcoves, Improper installation or misapplication of furnace may re- attics, basements, closets, utility rooms, crawlspaces, and garages.

  • Page 4: Clearances To Combustibles

    → This gas furnace may be used for construction heat provided that: or shutdown. The use of the furnace while the structure is under construction is deemed to be intermittent operation per our • The furnace is permanently installed with all electrical wiring, installation instructions.

  • Page 5: Codes And Standards

    from the outside atmosphere and all flue products are discharged to the outside atmosphere. See furnace and factory accessory termi- nation kit instructions for proper installation. These furnaces are shipped with the following materials to assist in proper furnace installation. These materials are shipped in the main blower compartment.

  • Page 6: Electrostatic Discharge (Esd) Precautions

    Cement 2 factory-supplied 1/2-in. street CPVC elbows to rigid drain tube connection on condensate trap. (See Fig. 7.) The model 58MVB 4-way multipoise, Gas-Fired, Category IV, These elbows must be cemented together and cemented to direct vent and non-direct vent condensing furnace is available in condensate trap drain connection.
  • Page 7 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 DOWNFLOW AND ALTERNATE HORIZONTAL UPFLOW APPLICATIONS APPLICATIONS...

  • Page 8: 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 TUBE (GREEN) COLLECTOR BOX INDUCER HOUSING DRAIN TUBE (GREEN) (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) CONDENSATE...
  • Page 9 COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX PLUG TUBE (GREEN) PLUG COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX DRAIN TUBE (BLUE COLLECTOR BOX & WHITE STRIPED) DRAIN TUBE (BLUE &...

  • Page 10: Horizontal Left (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 BOX DRAIN TUBE (VIOLET) EXTENSION TUBE COLLECTOR BOX COLLECTOR DRAIN TUBE (BLUE) BOX EXTENSION DRAIN TUBE DRAIN TUBE COUPLING COLLECTOR BOX TUBE (PINK) RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR 060, AND 080 HEATING INPUT FURNACES...
  • Page 11 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 12: Horizontal Right (Supply-Air Discharge) Applications

    A 3-IN. MINIMUM CLEARANCE VENT TO COMBUSTION-AIR INTAKE IS REQUIRED. COMBUSTION–AIR INTAKE 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. 30-IN. MIN WORK AREA ″...
  • Page 13 COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN) PLUG COLLECTOR BOX TUBE (PINK) AUXILIARY "J" BOX RELOCATED HERE CONDENSATE TRAP COLLECTOR BOX DRAIN TUBE (BLUE AND WHITE STRIPED) INDUCER HOUSING DRAIN TUBE (VIOLET) COLLECTOR BOX EXTENSION TUBE A02289 Fig. 14—Horizontal Right Tube Configuration NOTE: The auxiliary junction box (J-box) MUST be relocated to 1.

  • Page 14: Location

    NOTE: A 12-in. minimum offset pipe section is recommended with short (5 to 8 ft) vent systems. This recommendation is to reduce excessive condensate droplets from exiting the vent pipe. (See Fig. 12, 13 or 42.) LEVEL (0″) LOCATION FRONT FRONT ⁄...

  • Page 15: Low-Heat Only Installation

    A93058 Fig. 17—Freeze Protection Step 2—Low-Heat Only Installation This 58MVB furnace can be installed to operate in the low-heat only heating mode when sized using the low-heat heating capacity. This is accomplished by placing setup switch SW1-2 in the ON position to provide only low-heat operation.

  • Page 16: Furnace Location Relative To Cooling Equipment

    → Table 1—Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors TWO HORIZONTAL DUCTS SINGLE DUCT OR OPENING TWO OPENINGS OR VERTICAL DUCTS (1 SQ. IN./2,000 BTUH) (1,100 SQ. MM/KW) (1 SQ. IN./3,000 BTUH) (734 SQ. MM/KW) (1 SQ.

  • Page 17: Air For Combustion And Ventilation

    • Chlorinated waxes and cleaners • Chlorine based swimming pool chemicals • Water softening chemicals • De-icing salts or chemicals • Carbon tetrachloride • Halogen type refrigerants • Cleaning solvents (such as perchloroethylene) • Printing inks, paint removers, varnishes, etc. •...
  • Page 18 3. ONE OUTDOOR OPENING requires: 2. For fan-assisted appliances such as this furnace: a. 1 square inch of free area per 3,000 Btuh (734 mm /kW) for combined input of all gas appliances in the space per = 15ft Volume Table 1 and 1000 Btu/hr b.

  • Page 19: Installation

    1 SQ IN. PER 4000 DUCTS BTUH* OUTDOORS CIRCULATING AIR VENT THROUGH ROOF DUCTS 12″ MAX 12″ 1 SQ IN. VENT PER 2000 THROUGH 12" MAX BTUH* ROOF 1 SQ IN. 1 SQ IN. 4000 PER 1000 BTUH* BTUH* IN DOOR OR WALL DUCTS UNCONFINED...

  • Page 20: Installation In Upflow Or Downflow Applications

    4. Adjust outside nut to provide desired height, and tighten inside Conditioning Contractors Association (ACCA), Sheet Metal and nut to secure arrangement. Air Conditioning Contractors National Association (SMACNA) or American Society of Heating, Refrigerating and Air Conditioning NOTE: Bottom closure must be used when leveling legs are used. Engineers (ASHRAE) or consult The Air Systems Design Guide- See Bottom Closure Panel section.
  • Page 21 PLENUM OPENING FLOOR OPENING A96283 Fig. 22—Floor and Plenum Opening Dimensions FURNACE FURNACE (OR COIL CASING WHEN USED) CD5 OR CK5 COIL ASSEMBLY OR KCAKC COIL BOX COMBUSTIBLE COMBUSTIBLE FLOORING FLOORING DOWNFLOW SUBBASE SHEET METAL PLENUM SHEET METAL PLENUM FLOOR FLOOR OPENING OPENING...

  • Page 22: Return-Air Connections

    RETURN AIR CONNECTIONS PERFORATED DISCHARGE DUCT FLANGE FIRE HAZARD Failure to follow this warning could result in fire, personal injury, or death. Never connect return-air ducts to the back of the furnace. Return-air duct connections on furnace side(s) permitted in upflow applications only.

  • Page 23: Filter Arrangement

    portion of return-air duct. Bypass humidifier connections should WASHABLE FILTER be made at ductwork or coil casing sides exterior to furnace. Step 5—Filter Arrangement FILTER RETAINER FIRE, CARBON MONOXIDE AND POISONING HAZARD Failure to follow this warning could result in fire, personal injury or death.

  • Page 24: Gas Piping

    Table 5—Maximum Capacity of Pipe* To remove bottom closure panel, perform following: 1. Tilt or raise furnace and remove 2 screws holding front filler NOMINAL LENGTH OF PIPE (FT) panel. (See Fig. 29.) IRON INTERNAL PIPE DIAMETER 2. Rotate front filler panel downward to release holding tabs. SIZE (IN.) (IN.)

  • Page 25: Electrical Connections

    COMBUSTION-AIR PIPE GROMMET UNUSED 1-3/4 -IN. DIAMETER GAS COMBUSTION CONN. HOLE -AIR PIPE GAS LINE GAS LINE ENTRY HOLE FILLER PLUG VENT PIPE GAS LINE GROMMET VENT PIPE GROMMET NOTE: PIPE GROMMETS AND ENTRY HOLE FILLER PLUGS ARE INCLUDED IN FACTORY-SUPPLIED LOOSE PARTS BAG →...
  • Page 26 Table 6—Electrical Data OPERATING VOLTS— MAXIMUM MINIMUM UNIT MAXIMUM WIRE MAXIMUM FUSE OR VOLTAGE RANGE HERTZ— UNIT WIRE SIZE LENGTH (FT)‡ CKT BKR AMPS** PHASE AMPS SIZE Maximum* Minimum* 040-14 115—60—1 060-14 115—60—1 080-14 115—60—1 080-20 115—60—1 13.8 100-20 115—60—1 13.8 120-20 115—60—1...

  • Page 27: 24-V Wiring

    NGPIC. or fastener will not contact electrical or gas components. The 58MVB can be vented as either a direct vent or as a non-direct 24-V WIRING vent application. A direct vent system shall be installed in...
  • Page 28 ALTERNATE FIELD FACTORY LOCATION INSTALLED LOCATION POWER ENTRY HOLE FILLER PLUG (FACTORY- SUPPLIED LOOSE PARTS BAG) POWER ENTRY HOLE FILLER PLUG (FACTORY- UNUSED 7/8-IN. DIAMETER SUPPLIED LOOSE PARTS BAG) POWER ENTRY HOLES UNUSED 7/8-IN. DIAMETER POWER ENTRY HOLES A00212 → Fig.
  • Page 29 ACRDJ PRINTED CIRCIUT BOARD TRAN PL12 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 7 8 7 8 7 8 7 8 OFF OFF OFF OFF PRINTED CIRCIUT BOARD...
  • Page 30 COMMUNICATION CONTINUOUS FAN FUTURE CONNECTOR (CF) AIRFLOW APPLICATIONS MODEL PLUG SETUP SWITCHES CONNECTOR SW1 SETUP SWITCHES AND BLOWER OFF- DELAY AIR CONDITIONING (A/C) AIRFLOW SETUP SWITCHES HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX. ACRDJ – AIR CONDITIONING RELAY DISABLE JUMPER 24-V THERMOSTAT TERMINALS FLASH UPGRADE...
  • Page 31 horizontal left or horizontal right applications (See Fig. 35.) NOTE: Select 1 vent pipe connection and NOTE: Select 1 vent pipe connection and 1 combustion-air pipe connection. 1 combustion-air pipe connection. Maintain a 3-in minimum clearance between the opening of the combustion-air inlet pipe and any object.
  • Page 32 A05009 → Table 8—Direct Vent Termination Clearance...
  • Page 33 A05013 → Table 9—Other than Direct Vent Termination Clearance...
  • Page 34 Table 10—Maximum Allowable Exposed Vent Pipe Length (Ft) With Insulation in Winter Design Temperature Ambient* WINTER DESIGN MAXIMUM PIPE INSULATION THICKNESS (IN.)† UNIT TEMPERATURE DIAMETER SIZE (°F) (IN.) 040-14 060-14 080-14 080-20 2-1/2 100-20 2-1/2 2-1/2 120-20 * Pipe length (ft) specified for maximum pipe lengths located in unconditioned spaces. Pipes located in unconditioned space cannot exceed total allowable pipe length as specified in Table 11.
  • Page 35 Table 11—Maximum Allowable Pipe Length (Ft) NON-DIRECT VENT DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (1-PIPE) ONLY UNIT SIZE ALTITUDE Termination Pipe Dia (BTUH) Pipe Dia Type (IN.)* (IN.)* 1-1/2 1-1/2 2 Pipe or 2-In. 40,000 Concentric 1-1/2 1-1/2 2 Pipe or 2-In.
  • Page 36 Table 11—Maximum Allowable Pipe Length (Ft) Continued NON-DIRECT VENT DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (1-PIPE) ONLY UNIT SIZE ALTITUDE Termination Pipe Dia (BTUH) Pipe Dia Type (IN.)* (IN.)* 1-1/2 1-1/2 2 Pipe or 2-In. 40,000 Concentric 1-1/2 1-1/2 2 Pipe or 2-In.
  • Page 37 Table 11—Maximum Allowable Pipe Length (Ft) Continued NON-DIRECT VENT DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS (1-PIPE) ONLY UNIT SIZE ALTITUDE Termination Pipe Dia (BTUH) Pipe Dia Type (IN.)* (IN.)* 1-1/2 1-1/2 2 Pipe or 2-In. 40,000 Concentric 1-1/2 1-1/2 2 Pipe or 2-In.
  • Page 38 UNIT DAMAGE HAZARD Failure to follow this caution may result in unit component FURNACE damage. Inducer housing outlet cap must be installed and fully seated against inducer housing. Clamp must be tightened to prevent any condensate leakage. NOT IN HORIZONTAL 4.
  • Page 39 12. Slope combustion air piping (if applicable) and vent piping 2. Termination or termination kit should be positioned where downward towards furnace a minimum of 1/4 in. per linear ft vent vapors will not damage plants/shrubs or air conditioning with no sags between hangers. equipment.

  • Page 40: Condensate Drain

    Multiventing and Vent Terminations PVC drain pipe, fittings, and cement. When 2 or more 58MVB Furnaces are vented near each other, each furnace must be individually vented. NEVER common vent or When a condensate pump is required, select a pump which is breach vent 58MVB furnaces.

  • Page 41: Application

    Roof Termination (Preferred) At least 36 in. Concentric Vent and Combustion Air Roof Termination (preferred) Vertical separation between combustion At least air and vent 36 in. 8 3/4 in. for 3 in. kit Maintain 12 18 in. maximum min. clearance above 6 3/4 in.

  • Page 42: Condensate Drain Protection

    → Table 12—Vent Termination Kit for Direct Vent/2-Pipe System DIAM. OF COMBUSTION AIR AND VENT DIRECT VENT (2-PIPE) TERMINATION KIT TERMINATION SYSTEM PIPES (IN INCHES) 2-in. Concentric Vent Kit Single Penetration of Wall or Roof 1, 1-1/2, 2, or 2-1/2 3-in.

  • Page 43: Select Setup Switch Positions

    AIR CONDITIONING AIRFLOW* 040,060 & 080-14 080-20 & 100 120 MODEL TONS (12,000 BTU/HR) (CFM) MODEL MODEL 1-1/2 525 (600) 700 (800) 2-1/2 875 (1000) 1050 (1200) 3-1/2 1225 (1400) 1400 (1600) 1750 (2000) 2100 (2100) X-INDICATES AN ALLOWABLE SELECTION. * Airflow shown in parentheses is airflow unit that the unit will deliver when setup switch SW1-5 is ON (selects 400 CFM/ton) A/C OR CF AIRFLOW SELECTION CHART BASED ON 350 CFM/TON...

  • Page 44: Prime Condensate Trap With Water

    Table 13—Furnace Setup Switch Description SETUP SWITCH NORMAL DESCRIPTION SWITCH NO. NAME POSITION OF USE Turn ON to retrieve up to 7 stored status codes for troubleshooting SW1-1 Status Code Recovery assistance when R thermostat lead is disconnected. Allows 2-stage operation with a single stage thermostat. Turn ON when using 2 stage thermostat to allow Low Heat opera- SW1-2 Adaptive Heat Mode...

  • Page 45: Single-Stage Thermostat And Two-Stage Heating (Adaptive Mode)

    Table 14—Blower Off Delay Setup Switch Position DESIRED HEATING SETUP SWITCH (SW1-7 AND SW1-8) POSITION MODE BLOWER SW1-7 SW1-8 OFF DELAY (SEC) will always cause high-heat operation when the R to W circuit is closed, regardless of the setting of the low-heat only switch. This furnace can operate as a two-stage furnace with a single-stage thermostat because furnace control CPU includes a programmed adaptive sequence of controlled operation, which selects low-heat...

  • Page 46: Two-Stage Thermostat And Two-Stage Heating

    4. Flame-Proving-When burner flame is proved at the flame- gardless of the setting of the low-heat-only switch. The wall thermostat ″calls for heat″, closing the R to W1 circuit for proving sensor electrode FSE, the furnace control CPU begins the blower-ON delay period and continues to hold the gas low-heat or closing the R to W1-and-W2 circuits for high-heat.

  • Page 47: Thermidistat Mode

    CPU can turn on the air conditioning relay ACR to energize the THERMIDISTAT MODE Y/Y2 terminal and switch the outdoor unit to high-cooling. See Fig. 51-54 for Thermidistat connections. The furnace control CPU can start up the cooling unit in either The dehumidification output, DHUM on the Thermidistat should low- or high-cooling.

  • Page 48: Heat Pump

    Verify furnace model. Table 15 can only be used for model demand defrost cycles. Whenever W/W1 is energized along with 58MVB Furnaces. Y1 or Y/Y2, the furnace control CPU will transition to or bring on the blower motor BLWM at cooling airflow, low-heat airflow, or d.
  • Page 49 A00277 A00275 Fig. 53—Two-Stage Furnace with Single-Speed Heat Fig. 51—Two-Stage Furnace with Single-Speed Air Pump (Dual Fuel) Conditioner A00276 A00278 Fig. 52—Two-Stage Furnace with Two-Speed Air Con- Fig. 54—Two-Stage Furnace with Two-Speed Heat Pump (Dual Fuel) ditioner...
  • Page 50 A00281 Fig. 57—Two-Stage Thermostat With Two-Stage Fur- nace and Two-Speed Air Conditioner A00279 Fig. 55—Dual Fuel Thermostat with Two-Stage Furnace and Single-Speed Heat Pump See note 2 A02348 Fig. 58—Single-Stage Thermostat With Two-Stage Furnace and Two-Speed Air Conditioner A00280 Fig. 56—Dual Fuel Thermostat With Two-Stage Furnace and Two-Speed Heat Pump...
  • Page 51 Notes for Fig. 51-58: 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. Select the ″ZONE″ position on the two-speed heat pump control. 4.
  • Page 52 TABLE 15 - ORIFICE SIZE* AND MANIFOLD PRESSURES FOR GAS INPUT RATE (TABULATED DATA BASED ON 20,000 BTUH HIGH-HEAT / 13,000 BTUH LOW-HEAT PER BURNER, DERATED 2%/1000 FT ABOVE SEA LEVEL) ALTITUDE AVG. GAS SPECIFIC GRAVITY OF NATURAL GAS RANGE HEAT VALUE 0.58 0.60...
  • Page 53 TABLE 15 - ORIFICE SIZE* AND MANIFOLD PRESSURES FOR GAS INPUT RATE (TABULATED DATA BASED ON 20,000 BTUH HIGH-HEAT / 13,000 BTUH LOW-HEAT PER BURNER, DERATED 2%/1000 FT ABOVE SEA LEVEL) ALTITUDE AVG. GAS SPECIFIC GRAVITY OF NATURAL GAS RANGE HEAT VALUE 0.58 0.60...
  • Page 54 2. Adjust manifold pressure to obtain input rate. a. Remove burner enclosure front. NOTE: Manifold pressure MUST always be measured with the burner box cover REMOVED. b. Remove regulator seal caps that conceal adjustment screws for low- and high-heat gas valve regulators. (See Fig. 59.) c.
  • Page 55 Table 16—Altitude Derate Multiplier for U.S.A. Table 17—Gas Rate Cu Ft/Hr ALTITUDE % OF DERATE MULTIPLIER SIZE OF TEST DIAL SIZE OF TEST DIAL SECONDS SECONDS (FT) DERATE FACTOR FOR U.S.A.* FOR 1 FOR 1 REVOLUTION REVOLUTION cu ft cu ft cu ft cu ft cu ft...

  • Page 56: Set Temperature Rise

    SET TEMPERATURE RISE 3. Return setup switch SW1-2 to OFF position and replace thermostat on subbase. Step 7—Check Safety Controls This section covers the safety controls that must be checked before UNIT DAMAGE HAZARD the installation is complete. The flame sensor, gas valve, and Failure to follow this caution may result in overheating the pressure switches were all checked in the Start-up procedure heat exchangers or condensing flue gases in heat exchanger...
  • Page 57 5. Turn off 115-v power to furnace. CHECKLIST 1. Put away tools and instruments. Clean up debris. 6. Reconnect inducer motor wire harness. Reinstall furnace access door. 2. Verify flame rollout manual reset switch has continuity. 7. Turn on 115-v power to furnace. 3.
  • Page 58 CHECKLIST—DIRECT VENT (2-PIPE) INSTALLATION LOAD CALCULATION Condensate Drain ____________ Heating Load (Btuh) ________ Unit Level or Pitched Forward ____________ Cooling Load (Btuh) Internal Tubing Connections Free of Kinks ________ and Traps ____________ Furnace Model Selection External Drain Connection Leak Tight and COMBUSTION AND VENT PIPING ________ Sloped...
  • Page 59 CHECKLIST—NON DIRECT VENT (1-PIPE) INSTALLATION LOAD CALCULATION Condensate Drain ____________ Heating Load (Btuh) ________ Unit Level or Pitched Forward ____________ Cooling Load (Btuh) Internal Tubing Connections Free of Kinks ________ and Traps ____________ Furnace Model Selection External Drain Connection Leak Tight and ________ Sloped VENT PIPING...
  • Page 60 Copyright 2005 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 58mvb1si 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 Printed in U.S.A.

Table of Contents

Save PDF