Copyright 2006 Carrier Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in U.S.A. edition date: 10/06 Catalog No: 58MCB-2PD
Manufacturer reserves the right to change, at any time, specifications or designs without notice and obligations
Replaces: 58MCB-1PDRev. A
GENERAL
System Description
Furnish a _________________ (4-way multi-poise) fixed ca-
pacity gas-fired condensing furnace for use with natural gas or
propane (factory authorized conversion kit required for pro-
pane); furnish cold air return plenum; furnish side (external) fil-
ter rack.
Quality Assurance
Unit will be designed, tested and constructed to the current
ANSI Z 21.47/CSA 2.3 design standard for gas-fired central
furnaces.
Unit will be 3rd party certified by CSA to the current ANSI Z
21.47/CSA 2.3 design standard for gas-fired central furnaces.
Unit will carry the CSA Blue Star® and Blue Flame® labels.
Unit efficiency testing will be performed per the current DOE
test procedure as listed in the Federal Register.
Unit will be certified for capacity and efficiency and listed in
the latest GAMA Consumer’s Directory of Certified Efficiency
Ratings.
Unit will carry the current Federal Trade Commission Energy
Guide efficiency label.
Delivery, Storage, and Handling
Unit will be shipped as single package only and is stored and
handled per unit manufacturer’s recommendations.
Warranty (for inclusion by specifying engineer)
U.S. and Canada only. Warranty certificate available upon re-
quest.
PRODUCTS
Equipment
Components shall include: slow-opening gas valve to reduce ig-
nition noise, regulate gas flow, with electric switch gas shut-off;
flame proving sensor, hot surface igniter, pressure switch as-
sembly verifies inducer operation; flame rollout switch, drain
tubing and installed condensate drain trap, blower and inducer
assembly, 40va transformer; low-voltage (heating) (heating/
cooling) thermostat.
Blower Wheel and Blower Motor
Galvanized blower wheel shall be centrifugal type, statically
and dynamically balanced. Blower motor of PSC type shall be
permanently lubricated with sealed bearings, of _____ hp, and
shall be multiple-speed direct drive. Blower motor shall be soft
mounted to the blower scroll to reduce vibration transmission.
Filters
Furnace shall have reusable-type filters. Filter shall be ______
in (x) ______in.
Casing
Casing shall be of .030 in. thickness minimum, pre-painted gal-
vanized steel.
Inducer Motor
Inducer motor shall be soft mounted to reduce vibration trans-
mission.
Primary Heat Exchangers
Primary Heat exchangers shall be 3-Pass 20 gauge corrosion re-
sistant aluminized steel of fold-and-crimp sectional design,
which operates under negative pressure.
Secondary Heat Exchangers
Secondary Heat exchangers shall be of a flow-through design
having a patented interior laminate coating of polypropylene for
greater corrosion resistance with fold-and-crimp design, which
operates under negative pressure.
Controls
Controls shall include a micro-processor based integrated elec-
tronic control board with at least 11 service troubleshooting
codes displayed via diagnostic flashing LED light on the con-
trol, has ability to store fault codes, when activated a self-test
feature checks all major functions of the furnace within one
minute, and a replaceable automotive-type circuit protection
fuse. Multiple operational settings available including separate
blower speeds. Cooling airflow will be selectable between 350
or 400 CFM per ton of air conditioning.
Operating Characteristics
Heating Capacity shall be _________ Btuh input;
____________ Btuh output capacity.
Fuel Gas Efficiency shall be 92% AFUE.
Air delivery shall be __________ cfm minimum at 0.50 in. wg.
external static pressure.
Dimensions shall be: depth __________ in.; width __________
in.; height _________ in. (casing only). Height shall be
__________ in. with A/C coil and ____________ in. overall
with plenum.
Electrical Requirements
Electrical supply shall be 115 volts, 60 Hz, single-phase (nom-
inal). Minimum wire size shall be _________ AWG; maximum
fuse size or HACR-type, designated circuit breaker shall be
_______ Amps.
Special Features
Refer to section of the product data sheet identifying accesso-
ries and descriptions for specific features and available en-
hancements.
Guide Specifications
Base 90
Single-Stage Gas Furnace
58MCB
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