Carrier 58MTA Installation, Start-Up, And Operating Instructions Manual page 2

Two-Stage Heating With Two-Stage Thermostat
(Non-Adaptive Heating Model ......................................... 36
Cooling Mode .................................................................... 36
Thermidistat Mode ............................................................ 39
Continuous Blower Mode ................................................. 39
Heat Pump ......................................................................... 40
Start-Up Procedures ................................................................ 40
Purge G_L_ Lines ................................................................ 40
Component Self-Test ......................................................... 40
Prime Condensate Trap With Water ................................. 40
Operate Furnace ................................................................. 41
Furnace Restart .................................................................. 4 I
Adjustments ............................................................................. 4 I
Set Gas Input Rate ............................................................ 41
Set Temperature Rise ........................................................ 45
Adjust Blower Off Delay (Heat Mode) ............................ 46
Set Thermostat Heat Anticipator ...................................... 46
Check Safety Controls ............................................................ 47
Checklist .................................................................................. 47
RATING
CERTIFIED
REGISTERED QUALITY SYSTEM
SAFETY CONSIDERATIONS
Application of this furnace should be indoors with special
attention given to vent sizing and material, gas input rate, air
temperature rise, unit leveling, and unit sizing. Improper
installation or misapplication of furnace can require excessive
servicing or cause premature component failure.
Improper installation, adjustment, alteration, service, mainte-
nance, or use can cause carbon monoxide poisoning, explo-
sion. fire. electrical shock, or other conditions which may
cause personal injury or property damage. Consult a qualified
installer, service agency, local gas supplier, or your distribu
tot or branch for information or :Lssistance. The qualified
installer or agency must use only factory-authorized and
listed kits or accessories when modifying this product. Failure
to follow this warning could result in electrical shock, fire.
personal injury, or death.
Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified
personnel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters. All other operations must
be performed by trained service personnel. When working on
2
heating equipment, observe precautions in literature, on tags, and
on labels atlached to or shipped with unit and other safety
precautions that may apply.
These instructions cover the minimum requirements and conform
to existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen
tial constt_ction practices. We require these instructions xs a
minimum for a safe installation.
We,u- safety glasses and work glo_es.
--9
Have a fire extinguisher available during start-up and adjustment
procedures and service calls.
Recognize safety information, This is the safety-alert symbol z_,
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand these signal words: DANGER, WARNING, CAU-
TION, and NOTE. These words are used with the safety-alert
symbol. DANGER identifies the moat serious hazards which will
result in severe personal injuD" or death. WARNING sigltifies
hazards which could result in personal injury or death. CAUTION
is used to identify unsafe practices which would result in minor
personal injury or product and property" damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability, or operation.
AIRFLOW
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AIRFLOW
AIRFLOW
A93041
Fig. 1--Multipoise Orientations
INTRODUCTION
The model 58MTA, 2-Stage, 4-way multipoise, Gas-Fired, Cat
egory IV, direct vent condensing furnace is available in model
sizes ranging in high-stage gas input rates of 60,000 to 120.000
Btuh. This furnace is C.S.A. design-certified for natural and
propane gases (see furnace rating plate) and for installation in
alcoves, attics, basements, closets, utility rooms, crawlspaces, and
garages. This furnace is factory-shipped for use with natural gas. A
C.S.A. listed gas conversion kit is required to convert furnace for
use with propane gas.
This furnace shall not be installed directly on ca_eting, tile, or
any other combustible material other than wood flooring. FOC