58CVA/CVX
INFINITYt 80 VARIABLE SPEED
4-WAY MULTIPOISE FURN AC E
Input Capacities: 70,000 thru 155,000 Btuh
Product Data
THE INFINITYt 80 GAS FURNACE
The Infinityt 80 Variable--Speed, 4-way Multipoise Gas Furnaces
offerunmatchedcomfortwithComfortHeattand
IdealHumidityt technologies in an 80% AFUE gas furnace. You
get all the benefits of a ComfortHeat technology furnace: reduced
drafts, reduced sound levels, longer cycles, less temperature swings
between cycles, and less temperature differences between rooms.
With the variable speed blower motor, homeowners can now
economically run constant fan to help eliminate temperature
differences throughout the house and to get better indoor air
quality. This furnace with IdealHumidityt technology also
increases comfort in the summer by wringing out extra humidity
when needed. The Infinity 80 furnaces are approved for use with
natural or propane gas, and the 58CVX is also approved for use in
Low NOx Air Quality Management Districts.
Carrier Infinityt System When the Infinity 80 variable--speed
I
NFINITY
IdealHumidity
gas furnace is matched with the Infinity Control and an air
conditioner or heat pump, you will experience the ultimate in
ComfortHeat and IdealHumidity through unparalleled control of
temperature, humidity, indoor air quality, and zoning. The Carrier
Infinity System also provides unprecedented ease of use through
on--screen,text--basedserviceremindersandequipment
malfunction alerts. For even greater comfort and convenience,
match the Infinity 80 furnace with an Infinity air conditioner or
heat pump. This will create a fully communicating system,
requiring only 4 thermostat wires between system components, and
troubleshooting can even be done in the future from the outdoor
unit without entering the home.
Optional remote access through telephone or Internet is also
available when combined with a remote connectivity kit.
A04042
STANDARD FEATURES
S Infinity System--match with the Infinity Control for Infinity
System benefits
S ComfortHeat Technology Intelligent microprocessor control
S Two-- stage heating with single--stage thermostat with patented
Adaptive Control Technology
S Very low operating sound through low-stage operation and
QuieTecht system
S Integral part of the IdealHumidity System
Maximum dehumidification selection for summer time cooling
Full IdealHumidity benefits including “Super Dehumidify”
SmartEvapt--Humidity control when using a
Thermidistatt/Infinity control
S Variable-speed ECM blower motor
Increased SEER ratings for AC and HP systems as compared to
the Air Conditioning Heating and Refrigeration Institute’s
standard coil--only rating when paired with selected Carrier
Page 2
evaporator coils.
Perfectly matches CFM to cooling system at all static points
S Comfort Fant--Up to 12 cooling airflow selections from
thermostat with a wide range of capability
S High-- Efficiency Media Filtration Cabinet included
S Microprocessor based control center
LED diagnostics and self test feature
Stores fault codes during power outages
Adjustable heating air temperature rise
Adjustable cooling airflow
Dehumidification selection for summer-time cooling
58CVA/CVX
S 4-way Multipoise furnace, 13 vent applications
S Compact design -- only 33-1/3 in. (847 mm) tall
S Power Heatt Igniter
S Draft Safeguard switch to ensure proper furnace venting
S Insulated blower compartment
S Inner door for tighter sealing
S HYBRID HEATr Dual Fuel System compatible
S All models are chimney friendly when used with accessory vent
kit
S Residential installations eligible for consumer financing through
*Elbow may be turned to a dierent position, depending on type of installation.
NOTE: The 58CVA/CVX furnaces are factory shipped for use with natural gas. These furnaces can be field--converted for propane gas with
a factory--authorized and listed accessory conversion kit.
A04137
3
Page 4
CARRIER ACCESSORIES
A03149
CONTROLS:
THERMOSTATS
AND ZONING
Availableinprogrammableand
non-programmablemodels,Carrier
thermostats maintain a constant, comfortable
58CVA/CVX
temperature level in the home.
For the ultimate in home comfort, Carrier’s
2, 4, and 8-zone systems allow temperature
control of individual “zones” of the home.
This is accomplished through a series of
electronic dampers and remote room sensors.
Infinityt Control shown.
MECHANICAL
OR ELECTRONIC
AIR CLEANER
Cleans the air of smoke, dirt, and
many pollens commonly found.
Saves decorating and cleaning
expenses by keeping carpets,
furniture, and drapes cleaner.
Electronic air cleaner is shown.
C04008
MODEL HUMCCLFP
HUMIDIFIER
By adding moisture to winter-dry
air, a Carrier humidifier can often
improvecomfortandkeep
furniture, rugs, and draperies in
better condition. Moisturizing
household air also helps to retain
normal body heat and provides
comfort at lower temperatures.
A01484
4
Page 5
CARRIER ACCESSORIES
DESCRIPTION
ELECTRONIC AIR CLEANER (EAC)Model EACB
MECHANICAL AIR CLEANERModels EZXCAB, FILCAB
HUMIDIFIERModel HUM
HEAT RECOVERY VENTILATORModel HRV
ENERGY RECOVERY VENTILATORModel ERV
UV LIGHTSModel UVL
Fo r u s e w i t h 1 - s p e e d A i r C o n d i t i o n e r --- d e g . F / C , A u t o C h a n g e o v e r --- T P --- N A C , T C --- N A C
T H E R M O S T A T --NON-PROGRAMMABLE
T H E R M O S T A T --PROGRAMMABLE
ZONING CONTROL
Fo r u s e w i t h 1 - s p e e d H e a t P u m p --- d e g . F / C , A u t o C h a n g e o v e r --- T P --- N H P, T C --- N H P *
Fo r u s e w i t h 2 - s p e e d A i r C o n d i t i o n e r --- d e g . F / C , A u t o C h a n g e o v e r --- T P --- N R H *
For use with multi-use / stage configurations --- deg. F/C, Auto Changeover/Temperature and Humidity
C o n t r o l --- T P --- P R H {
For use with 1-speed Air Conditioner --- deg. F/C, Auto Changeover, 7-Day Programmable --T P --- PA C
For use with 1-speed Heat Pump --- deg. F/C, Auto Changeover, 7-Day Programmable --TP ---PHP*
For use with 2-speed Air Conditioner --- deg. F/C, Auto Changeover, 7-Day Programmable --T P --- P R H *
Fo r u s e w i t h 1 - s p e e d A i r C o n d i t i o n e r --- d e g . F / C , 5 --- 2 D a y P r o g r a m m a b l e --- T P --- P A C
Fo r u s e w i t h m u l t i - s t a g e a p p l i c a t i o n s --- d e g . F / C , A u t o C h a n g e o v e r, 7 - D a y P r o g r a m m a b l e --- T C --- P H P }
For multi-use / stage configurations --- deg. F/C, Auto Changeover, 7-Day Programmable/Temperature and
H u m i d i t y C o n t r o l --- T P --- P R H {
Comfort™ Series 3-Zone Kit --- ZONECC3ZAC01, ZONECC3ZHP01
2 Performance™ Series ComfortZone™ II Zoning/Temperature and Humidity Control --- ZONECC2KIT01 --- B
4 Performance™ Series ComfortZone™ II Zoning/Temperature and Humidity Control --- ZONECC4KIT01 --- B
8 Performance™ Series ComfortZone™ II Zoning/Temperature and Humidity Control --- ZONECC8KIT01 --- B
Infinityt Control Deluxe 7-Day Programmable (Wall-mounted system control.) --- SYSTXCCUID01
Infinityt Control Deluxe Z oning 7-Day Programmable (Wall-mounted control for a
multi-zone system.) --- SYSTXCCUIZ01
Infinityt 4-Zone Damper Control Module (Wall-mounted for a 4-zone system.) --- SYSTXCC4ZC02
Infinityt Smart Sensor (Optional wall control used to monitor temperature and/or fan control in
an individual zone.) --- SYSTXCCSMS01
Infinityt Remote Room Sensor (Monitors temperature in an individual zone.) --- SYSTXCCRRS01
Infinityt System Access Module (Hardware for wireless access and control via phone or internet.) ---
SYSTXCCSAM01
Infinityt Network Interface Module (Connects Heat Recovery and Energy Recovery Ventilators or older
two-speed outdoor models t o system.) --- SYSTCCNIM01††
Decorative Back Plate for Infinity Control (Decorative wall plate.) SYSTXXXBPU01
58CVA/CVX
* Model HP and 2S thermostat must be field converted to air condition er operation.
† T hermidistat Control can be configured for multiple use and staging, it mu st be configured for each specific application.
} Du al Fuel thermostat is used with furnace and heat pump application.
When applied with Carrier’s IdealHumidity™ series 58CVA/CVX and FE Indoor Models
**
†† Must be installed in Dual --- Fuel Infinity system applications
5
Page 6
CARRIER ACCESSORIES
DESCRIPTIONPAR T NO .070---12090---16110---20135--- 22155 --- 22
*Gas input ratings ar e certified for elevations to 2000 ft. (610 M). In USA, for elevations above 2000 ft. (610 M), reduce ratings 4 percent for each 1000 ft. (305
M) above sea l evel. Refer to National Fuel Gas Code NFPA 54/ANSI Z223.1 ---2006 Table F.1 (d) or furnace Installation Instructions. In Cana da, derate the
unit 10 percent for elevations 2000 to 4500 ft. (610 to 1372 M) above sea level.
†Capacity in accordance with U.S. Government DOE test procedures.
‡Airflow shown is for bottom only return---air supply in comfort mode (as shipped). For air delivery above 1800 CFM, see Air Delivery Table for other options.
A filter is required for each return-air supply.
ICS — Isolated Combustion System
1. For common vent, vent connector sizing and vent material: United States, latest edition of the National Fuel Gas
Code (NFGC), ANSI Z223.1/NFPA 54. In Canada, latest edition of the National Standards of Canada, Natural Gas
and Propane Installation Code (NSCNGPIC), CSA B149.1.
2. Immediately increase to 5-in. (127 mm) vent connector outside furnace casing when 5-in. (127 mm) vent connector
required, refer to Note 1.
3. Side outlet vent for upflow and downflow installations must use Type B vent immediately after exiting the furnace,
except when KGAVG0101DFG is used in downflow position.
4. Type B vent where required, refer to Note 1.
5. 4 ---in. (102 mm) single wall vent must be used inside furnace casing and the KGAVG0101DFG Downflow Vent Guard
Kit.
6. Accessory Downflow Vent Guard Kit, KGAVG0101DFG required in downflow installations with bottom vent
configuration.
7. Chimney Adapter Kit required for exterior masonry chimney applications. Refer to Chimney Adapter Kit,
KGACA02014FC and KGACA02015FC for sizing and complete application details.
8. Secure vent connector to furnace elbow with (2) corrosion-resistant sheet metal screws, space approximately 180°
apart.
9. Secure all other single wall vent connector joints with (3) corrosion-resistant screws spaced approximately 120°
apart. Secure Type B vent connectors per vent connector manufacturer’s recommendations.
SEE NOTES: 1,2,3,4,5,7,8,9
DOWNFLOW
SEE NOTES: 1,2,4,5,6,7,8,9
DOWNFLOW
A02062
8
Page 9
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL RIGHT
A02068
SEE NOTES: 1,2,4,7,8,9
HORIZONTAL RIGHT
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL RIGHT
A02069
A02070
58CVA/CVX
SEE NOTES: 1,2,4,7,8,9
HORIZONTAL LEFT
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL LEFT
A02066
A02064
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL LEFT
SEE NOTES: 1,2,4,5,7,8,9
HORIZONTAL LEFT
A02065
A02067
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Page 10
AIR DELIVERY -- CFM (With Filter)*
CFM
Unit SizeOperating Mode
070---12AIRFLOW (CFM)
††Low Heat735 (615)†0---0.50735735735735725
††1 --- 1 / 2 --- T o n C o o l i n g5250---0.50‡515500500490485
††2 --- To n A / C C o o l i n g7000 --- 0.50‡690680675680675
090---16
††1 --- 1 / 2 --- T o n A / C C o o l i n g5250 --- 0.50‡525520525495475
††2 --- To n A / C C o o l i n g7000 --- 0.50‡680680680675670
110---20***
58CVA/CVX
††2 --- To n A / C C o o l i n g7000 --- 0.50‡700700700700700
††2 --- 1 / 2 --- T o n A / C C o o l i n g8750 --- 0.50‡875875875875875
††3 --- To n A / C C o o l i n g10500---0.50‡1050105010501050 1050
135---22
††2 --- To n A / C C o o l i n g7000 --- 0.50‡700700700700665
††2 --- 1 / 2 --- T o n A / C C o o l i n g8750 --- 0.50‡870870865865865
††3 --- To n A / C C o o l i n g10500---0.50‡1010103010501050 1050
155---22
††2 --- To n A / C C o o l i n g7000 --- 0.50‡700700700700680
††2 --- 1 / 2 --- T o n A / C C o o l i n g8750 --- 0.50‡865875875865865
††3 --- To n A / C C o o l i n g10500---0.50‡1015102010351045 1050
*Actual external static pressure (ESP) can be determined by using the fan laws (CFM 2 proportional to ESP); such as, a system with 1180 CFM
High Heat1180 (1060)†0 --- 1 . 0116011651175 11801180118011801180 11801175
2 --- 1 / 2 --- T o n A / C C o o l i n g8750 ---1.0‡875875875870865855850835825820
3 --- To n A / C C o o l i n g10500 --- 1.0‡105010501050 10501050105010451035 10201000
3 --- 1 / 2 --- T o n A / C C o o l i n g12250 --- 1 . 0122012251225 12251225122012051190 11851170
3 --- 1 / 2 --- T o n A / C C o o l i n g12250 ---1.0‡1225122512251225 12251225122512251225 1225
4 --- To n A / C C o o l i n g14000 --- 1.0‡140014001400 14001400140014001400 14001400
5 --- To n A / C C o o l i n g17500 --- 1.0‡175017501750 17501750175017501750 17401725
6 --- To n A / C C o o l i n g21000 --- 1 . 0210021002100 21002090207520552040 20051970
3 --- 1 / 2 --- T o n A / C C o o l i n g12250 ---1.0‡1155118012001210 12201225122512251225 1225
4 --- To n A / C C o o l i n g14000 --- 1.0‡139514001400 14001400140014001390 13751355
5 --- To n A / C C o o l i n g17500 --- 1.0‡174017501750 17501735174017351730 17151700
6 --- To n A / C C o o l i n g21000 --- 1 . 0207520852090 21002100210020902080 20552025
3 --- 1 / 2 --- T o n A / C C o o l i n g12250 ---1.0‡1160118512151225 12251225122512251225 1225
4 --- To n A / C C o o l i n g14000 --- 1.0‡138514001400 14001400140013951395 13801360
5 --- To n A / C C o o l i n g17500 --- 1.0‡174517501750 17501745174017451745 17401735
6 --- To n A / C C o o l i n g21000 --- 1 . 0205520702080 20852095210021002100 20902065
at 0.5 ESP would operate at cooling airflow of 1050 CFM at 0.4 ESP and low--- heating airflow of 735 CFM at 0.19 ESP.
{Comfort airflow values are shown in parenthesis. Comfort airflow is selected when the low ---heat rise adjustment switch (SW1--- 3) is OFF and
the comfort/efficiency switch (SW1 --- 4) is ON.
}Ductwork must be sized for high --- heating CFM within the operational range of ESP.
**Wattage data provided is for the circulating blower with bottom return and does not include draft inducer, accessories, or gas controls.
{{Operation within the blank areas of the chart is not recommended because high ---heat operation will be above 1.0 ESP.
***All airflows on 110 size furnace are 5% less on side return only installations.
External Static Pressure (ESP) (IN WC)
10
Page 11
DIMENSIONS
(
(664mm)
26-1/8"
(FLUE COLLAR)
5-15/16"
(22mm)
7/8" DI A
(135mm)
33-5/16"
(846mm)
1/2" (13 mm) DIA.
THERMOSTAT WIRE ENTRY
ACCESSORY
(733mm)
28-7/8"
(641mm)
25-1/4"
22-9/16"
(573mm)
JUNCTION BOX
LOCATION
3-15/16" (84mm)
LEFT HAND GAS
ENTRY
7/8" (22mm) DIA.
ACCESSORY
24-7/8"
(632mm)
F
A
D
13/16"
(21mm)
4-13/16"
(122mm)
8-9/16"
(217mm)
ALTERNAT E
JUNCTION BOX
LOCATIONS (TYP)
VENT OUTLE T
5 PLACES (TYP)
(140mm)
5-1/2"
2-7/16"
(62mm)
1-5/16"
(33mm)
1-1/8"
(29mm)
AIRFLOW
19"
(483mm)
OUTLE T
1/2" DIA. K.O.THERMOSTAT
WIRE ENTRY
7/8" DIA. K.O. WIRE ENTRY
(22mm)
(22mm)
(13mm)
1-3/4" DIA.RIGHT HAND
GAS ENTRY
7/8" DIA. ACCESSORY
(44mm)
13/16"
(21mm)
11/16"
(17mm)
14-7/8"
(378mm)
7-3/4"
(197mm)
9-5/8"
(244mm)
11-1/2"
(292mm)
11/16"
(17mm)
(549mm)
21-5/8"
BOTTOM INLE T
24"
CASING
610mm)
1-11/16"
(43mm)
5-1/2"
(140mm)
E
11/16"
(17mm)
3-3/4"
(95mm)
1-1/2"
(560mm)
22-1/16"
SIDE INLE T
(38mm)
1-1/4"
(32mm)
1"
(25mm)
A04037
NOTES:
1. Two additional 7/8 - -- in. (22 mm) diameter holes are located in the top plate.
2. Minimum return--- air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturer’s recommendations for equivalent diameters.
a. For 800 CFM --- 16 ---in. (406 mm) round or 14 1/2 x 12 ---in. (368 x 305 mm) r ectangle.
b. For 1200 CFM --- 20 ---in. (508 mm) roun d or 14 1/2 x 19 1/2 --- in. (368 x 495 mm) rectangle.
c. For 1600 CFM --- 22 ---in. (559 mm) roun d or 14 1/2 x 22 1/16 --- in. (368 x 560mm) rectangle.
d. For airflow requirements above 1800 CFM, see Air Del ivery table in Product Data literature for specific use of single side inlets. The use of both sideinlets,a
combination of 1 side and the bottom, or the bottom only will ensur e adequate return air openings for airflow requirements above 1800 CFM.
FURNACE SIZE
070---12
090---16
110---2021 ( 533)
135---22
155---22
A
CABINET
WIDTH
IN. ( mm)
14---3/16
(360)
17---1/2
(445)
24---1/2
(622)
24---1/2
(622)
D
SUPPLY---
AIR WIDTH
IN. ( mm)
12---9/16
(319)
15---7/8
(403)
19---3/8
(492)
22---7/8
(581)
22---7/8
(581)
E
RETURN---
AIR WIDTH
IN. ( mm)
12---11/16
(322)
16---1/8
(410)
19---1/2
(495)
CENTER LINE TOP AND
F
BOTTOM FLUE
COLLAR
FLUE
COLLAR*
IN. ( mm)
SHIPPING
WT.
LB (KG)
IN. ( mm)
9---5/16 (237)4 (102)127 (58)16 (406)
11---9/16 (294)4 ( 102)151 (68)16 (406)
13---5/16 (338)4 ( 102)163 (74)20 (508)
23 (584)15--- 1/16 (383)4 (102)†177 (80)24 (610)
23 (584)15--- 1/16 (383)4 (102)†183 (83)24 (610)
FILTER
MEDIA
CABINET
SIZE
IN. ( mm)
*5 in. or 6 in. (127 or 152 mm) vent connector may be required in some cases.
{5 in. (127 mm) or larger vent is required. Use a 4 --- 5 (102---127 mm) or 4 ---6 in. (102 ---152 mm) vent adapter between furnace an d vent connector.
58CVA/CVX
23
(600 mm)
23
(594 mm)
Furnace Side
23
(603 mm)
Centerline Screw Slots
5
/
25
8
"
5
/
8
"
3
/
8
"
A
B
3
/
4
"
3
/
5
4
(146 mm)
"
Media/
Filter Cabinet
16" (406 mm) 17" (432) 16
20" (508 mm) 21" (533) 20
24" (610 mm) 25" (635) 24
(651 mm)
1
/
2
"
24
(622 mm)
With Flanges Bent Out
1
/
8
"
23
Opening
(587 mm)
Duct Side
AB C
1
/
4"(413) 15" (381)
1
/
4"(514) 19" (483)
1
/
4"(616) 23" (584)
with Flanges Bent In
C Opening
11
Page 12
58CVA/CVX
A08471
12
Page 13
TYPICAL WIRING SCHEMATIC
58CVA/CVX
A95236
ELECTRICAL DATA
OPERATING
UNIT SIZE
070-12115-60-11271049.030 (9.1)1514
090-16115-60-11271049.629 (8.8)1514
110-20115-60-112710415.129 (8.8)2012
135-22115-60-112710414.930 (9.1)2012
155-22115-60-112710415.029 (8.8)2012
*Permissible limits of the voltage range at wh ich unit oper ates satisfactorily.
†Time ---delay type is recommended.
‡Length shown is as measured one way along wire path between un it and service panel for maximum 2 percent voltage drop.
VOLTS HERTZ
PHASE
VOL TAGE RANGE
Maximum*Minimum*
MAXIMUM
UNIT AMPS
MAXIMUM
WIRE
LENGTH
FT (M)‡
MAXIMUM
FUSE OR CKT
BKR AMPS†
MINIMUM
WIRE GAGE
13
Page 14
TYPICAL INST ALLATION
58CVA/CVX
CONDENSING
UNIT
ELECTRONIC
AIR CLEANER
HUMIDIFIER
GAS-FIRED
WATER HEATER
AIRFLOW
A02184
14
Page 15
58CVA/CVX
15
Page 16
GUIDE SPECIFICATIONS
Gas Furnace
58CVA/CVX
General
SYSTEM DESCRIPTION
Furnish a _________________ Variable speed gas-fired
furnace for use with natural gas or propane (factory
authorized conversion kit requi red for propane); 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 curre nt ANSI Z 21.47/CSA 2.3 design
standard for gas-fired central furnaces.
Unit will carry the CSA Blue StarR and Blue FlameR
labels.
Unit efficiency testing will be performed per the current
DOE test procedure as listed in the Federal Register.
58CVA/CVX
Unit will be certified for capacity and efficiency and
listed in the latest GAMA Consumer’s Directory of
Certified Efficiency Ratings.
Unit shall carry the current Federal Trade Commission
Energy Guide efficiency label.
DELIVERY, STORAGE AND
HANDLING
Unit shall be shipped a s single package only and is
storedandhandledpe runitmanufacturer’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 two-stage dual
fuel gas valve to reduce ignition noise, regulate gas flow,
with electric switch gas shut-off; flame proving sensor, hot
surface igniter, dual pressure switch assembly, flame
rollout switch, ICM blower and two speed inducer
assembly,40vatransformer;low-voltage(heating)
(heating/cooling) thermostat.
Blower Wheel and ECM Blower Motor
Galvanized blower wheel shall be centrifugal type,
statically and dynamically balanced. Blower motor of
variable speed ECM type shall be permanently lubricated
with sealed ball bearings, of _______hp, and supplies
delivers requested airflow CFM as defined by signals
received from EZ-SELECT airflow control when 24V
motor inputs are provided. Blower motor shall be direct
drive and soft mounted to the blower scroll to reduce
variation transmission.
Filters
Furnace may have reusable-type filters. Filter shall be
_______ in. (mm) (x) _______in. (mm) An accessory high
efficiency Media Filter is available as an option.
_______________ Media Filter.
Casing
Casing shall be of .030 in. (.76 mm) thickness
minimum, pre-painted galvanized steel.
Two Speed Inducer Motor
Two Speed Inducer motor shall be soft mounted to
reduce vibration transmission.
Flame Rollout Switch
Flame Rollout Switch shall be factory installed near
burner area to further reduce the possibility of a stuck gas
valve or failed inducer motor.
Heat Exchangers
Heat exchangers shall be a 4-Pass 20 gage corrosion
resistant aluminized steel of fold--and--crimp sectional
design when applied operating under nega tive pre ssure.
Controls
Controlshallincludeamicro-processorbased
integrated electronic control board with at least 11 service
troubleshooting codes displayed via diagnostic flashing
LED light on the control, a self-test feature that checks all
major functions of the furnace within one minute, and a
replaceable automotive-type circuitprotection fuse.
Multipleoperationalsettingsavailablewiththe
EZ-SELECT fan control, including, separate blower
speeds for low heat, high heat, low cooling, high cooling
and continuous fan. Continuous fan speed may be adjusted
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 an
Infinityt Control or Thermidistatt is selected as the
thermostat.