Carrier 58MTB User Manual download pdf (Page 22)

Manufacturer reserves the right to change, at any time, specifications or designs without notice and obligations

Catalog No: 58MTB-1PD Rev.A Replaces: 58MTB-1PD

GENERAL

System Description

Furnish a _________________ (4-way multipoise) dual 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 external medial

cabinet for use with accessory media filter or standard filter.

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

request.

PRODUCTS

Equipment

Components shall include: slow-opening dual rate gas valve to

reduce ignition noise, regulate gas flow, with electric switch gas

shut-off; flame proving sensor, hot surface igniter, pressure

switch assembly 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. An accessory high efficiency Media Filter is

available as an option _____________Media Filter.

Casing

Casing shall be of .030 in. thickness minimum, pre-painted gal-

vanized steel.

Two Speed Inducer Motor

Two Speed Inducer motor shall be soft mounted to reduce vi-

bration transmission.

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 microprocessor 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, sepa-

rate blower speeds for low heat, high heat, low cooling, high

cooling and continuous fan. Continuous fan speed may be ad-

justed from the thermostat. Cooling airflow will be selectable

between 350 or 400 CFM per ton of air conditioning. Features

will also include temporary reduced airflow in the cooling

mode for improved dehumidification when a Thermidistat® is

selected as the thermostat.

Operating Characteristics

Heating Capacity shall be _________ Btuh input;

____________ Btuh output capacity.

Fuel Gas Efficiency shall be 93% 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

Performance 93

Two-Stage Furnace

58MTB

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Carrier 58MTB User Manual Page 22

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