Carrier 58CTA/CTX User Manual

58CT A/CTX2 --- S t a g e D e l u x eI n d u c e d --- C o m b u s t i o n4---W ay Multipoise FurnaceInstallation, Start---up, Ope ra ting andService

10Table 3 – Minimum Space Vo lumes for 100% Combustion, Ventilation, and Dilution from IndoorsACHOTHER THAN FAN---ASSISTED TOTAL(1,000s BTUH GAS INPUT

11NOTE: Side return--air openings can be used in UPFLOW andmost HORIZONTAL configurations. Do not use side return--airopenings in DOWNFLOW configurati

12Platform FurnaceSupportConstruct working platform at location where all required furnaceclearances are met. (See Fig. 2 and 17.) For furnaces with 1

13Table 4 – Opening dimensions -- In. (mm)FURNACECASINGWIDTHAPPLICATIONPLENUM OPENING FLOOR OPENINGA B C D14–3/16(376)Upflow Applications on Combustib

141/4" (6 mm) THREADED ROD4 REQ.SECURE ANGLEIRON TO BOTTOMOF FURNACE WITH3 #8 x 3/4" (19 mm) SCREWSTYPICAL FOR 2 SUPPORTS1" (25 mm) SQU

1530-IN . (762mm) MIN WORK AREA6 ″ M IN * TYPE-B VENT 17 3 / 4 ″22 ″SHEET MET AL SEDIMENT TRAP EQUIPMENT MANU AL SHUT -OFF GAS VA LV E LINE CONT A

16Table 5 – Air Delivery -- CFM (With Filter)*FURNACESIZERETURN---AIRINLETSPEEDEXTERNAL STATIC PRESSURE (IN. WC)0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.

17Table 5 -- Air Delivery -- CFM (With Filter)* (Cont.)FURNACESIZERETURN---AIRINLETSPEEDEXTERNAL STATIC PRESSURE (IN. WC)0.1 0.2 0.3 0.4 0.5 0.6 0.7 0

18A02075Fig. 18 -- Upflow Return Air Configurations and RestrictionsA02163Fig. 19 -- Downflow Return Air Configurations and RestrictionsA02162Fig. 20

19Gas piping must be installed in accordance with national andlocal codes. Refer to current edition of NFGC in the U.S. and theCAN/CSA--B149.1--05 in

22-7/16" 1-1/8" 28-7/8" (733mm) 25-1/4" 22-9/16" JUNCTION BOX LOCATION 7/8" DI A ACCESSORY 1/2" DIA THERMOSTAT WIRE

20115-VOLT FIELD-SUPPLIEDFUSEDDISCONNECT JUNCTIONBOX CONTROLBOX24-VOLTTERMINALBLOCK THREE-WIREHEATING-ONLY FIVEWIRE NOTE 2NOTE 11-STAGETHERMO

21Table 7 – Electrical DataV O LT S ---H E R T Z ---PHASEOPERATING VOLTAGERANGEMAXUNITAMPSFURNACESIZEUNITAMPACITY#MAXIMUMWIREL E N G T H ---FT. (M)‡MA

226. Reinstall cover to J--Box. Do not pinch wires betweencover and bracket.Electrical Box on Furnace Casing Side. See Fig.25.FIRE OR ELECTRICAL SHOCK

23See notes 2, 5, 8, 10, 11 and 12on the page following these figuresA03179Fig. 26 -- Two-- Stage Furnace with Two --Speed AirConditionerSee notes 1,

247See notes 1, 2, 3, 4, 12, 13, 14, 15, and 17on the page following these figuresA03182Fig. 30 -- Dual Fuel Thermostat with Two -- Stage Furnaceand T

25ACCESSORIES1. Electronic Air Cleaner (EAC)Connect an accessory Electronic Air Cleaner (if used) us-ing 1/4--in female quick connect terminals to the

26CARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personalinjury or death.Failure to follow the steps outlined below fo

27CHIMNEY INSPECTION CHARTFor additional requirements refer to the National Fuel Gas Code NFPA 54/ANSI Z223.1 and ANSI/NFPA 211Chimneys, Fireplaces, V

28The Chimney Adapter Kit is a listed alternative venting systemfor these furnaces. See the kit instructions for complete details.Canada (and U.S.A.)-

292. Adjust the gas input rate per the installation instructions.Low gas input rate causes low vent gas temperatures, caus-ing condensation and corros

3Table1–DimensionsFURNACE SIZEACABINETWIDTHIN (mm)DSUPPLY ---AIRWIDTHIN (mm)ERETURN---AIRWIDTHIN (mm)FC.L. TOP ANDBOTTOM FLUECOLLARIN (mm)FLUECOLLAR*I

30SEE NOTES:1,2,3,4,5,7,8,9on the page followingthese figuresA03210Fig. 37 -- Downflow Application--Vent Elbow Up then LeftSEE NOTES: 1,2,4,5,7,8,9on

31SEE NOTES: 1,2,4,7,8,9 on the pagefollowing these figuresA03213Fig. 41 -- Horizontal Left Application -- Vent Elbow LeftSEE NOTES: 1,2,4,5,7,8,9 on

32SEE NOTES: 1,2,4,5,7,8,9A02068Fig. 47 -- Horizontal Right Application--Vent Elbow LeftNOTES: Venting Notes for Fig. 35---471. For common vent, vent

33A04127Fig. 48 -- Using Tin Snips to Cut Tie PointsCUT HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have

34A04129Fig. 50 -- Knockout Pulled LooseA04130Fig. 51 -- Hammer and Screwdriver Used for KnockoutA04131Fig. 52 -- Remove Knockout with HammerBURN HAZA

35Table 10 – 2-- Stage Furnace Setup Switch DescriptionSETUPSWITCH NO.SWITCHNAMENORMALPOSITIONDESCRIPTIONOF USES W --- 1 Adaptive Heat Mode OFFWhen OF

36sea level by an authorized Gas Conversion Station orDealer. To determine correct input rate for altitude, seeexample and use 0.90 as derate multipli

37b. Run for 3 minutes in low--heat operation.c. Measure time (in sec) for gas meter to complete 1 revolu-tion and note reading. The 2 or 5 cubic feet

38Table 12 – Gas Rate (cu ft. /hr)SECONDSFOR1REVOLUTIONSIZE OF TEST DIALSECONDSFOR1REVOLUTIONSIZE OF TEST DIAL1 CUFT. 2 CUFT. 5 CUFT. 1 CUFT. 2 CUFT.

39NOTE: Using the 2 cu. ft. or 5 cu. ft. gas meter dial providesgreater accuracy in verifying gas input rate.If clocked rate does not match required i

4A08471Fig. 2 -- Clearances to Combustibles58CT

40Table 14 – 2-- Stage Furnace Blower OFF delay Setup SwitchDESIRED HEATING MODEBLOWER OFF DELAY (SEC.)SETUP SWITCHS W --- 2SETUP SWITCHS W --- 390 OF

41Table 15 – Orifice Size* and Manifold Pressures (In wc) for Gas Input RateA0848558CT

42Table 15 -- Orifice Size and Manifold Pressures (In wc) for Gas Input Rate (cont.)A08485A58CT

43Table 16 – Orifice Size* and Manifold Pressures (In wc) for Gas Input RateA0821958CT

44Table 16 -- Orifice Size* and Manifold Pressures (In wc) for Gas Input Rate (cont.)A08219A58CT

45SERVICE AND MAINTENANCEPROCEDURESFIRE, PERSONAL INJURY AND UNIT DAMAGEHAZARDFailure to follow this warning could result in personal injury,death and

46CONTINUOUS OFF - Check for 115VAC at L1 and L2, and 24VAC at SEC-1 and SEC-2.CONTINUOUS ON - Control has 24VAC power.RAPID FLASHING - Line voltag

47 A07125Fig. 57 -- Wiring Diagram58CT

48TABLE 17 – FILTER SIZE INFORMATION (IN. / MM)FURNACE CASING WIDTHFILTER SIZEFIL TER TYPESIDERETURNBOTTOMRETURN14---1/2 (368)16 x25 x 3/4(406 x635 x

4913. Verify that blower wheel is centered in blower housingand set screw contacts the flat portion of the motor shaft.Loosen set screw on blower whee

56080 / 27 C/ 16 CA06745Fig. 3 -- Return Air TemperatureCODES AND STANDARDSFollow all national and local codes and standards in additionto these instr

509. Using field--provided 25--caliber rifle cleaning brush,36--in. (914 mm) long 1/4--in. (6 mm) diameter steelspring cable, a variable speed, revers

511. Two -- Stage Heating (Adaptive mode) with Single--Stage Thermostat(See Fig. 23 or 32 for thermostat connections)NOTE: The low--heat only switch (

52a. Switching from Low-- to High--Heat--If the thermostatR--to-- W1 circuit is closed and the R--to--W2 circuitcloses, the furnace control CPU will s

53nace control CPU will drop the blower speed back to HIHEAT speed. This alternating 10--minute cycle will con-tinue as long as there is a call for co

54Is LED status light on?Is LED status light blinking rapidlywithout a pause?Is LED status light blinking ON/OFF slowlywith a combination of short and

5511 NO PREVIOUS CODE – Stored codesare erased after 72 hours. On RED LEDboards stored status codes can also beerased whenever power (115V or 24V)is

56Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231Manufacturer reser ves the right to change, at any time, specifications an

6THE BLOWER IS LOCATEDTO THE RIGHT OF THEBURNER SECTION, ANDAIR CONDITIONED AIR ISDISCHARGED TO THE LEFT.THE BLOWER ISLOCATED BELOW THEBURNER SECTION,

7FIRE, INJURY OR DEATH HAZARDFailure to follow this warning could result in personalinjury, death, and/or property damage.When the furnace is installe

8equipped with means to prevent operation of either unit unlessthe damper is in the full--heat or full--cool position.AIR FOR COMBUSTION ANDVENTILATIO

91 SQ IN . PER 4000 BTUH* DUCTS TO O UTDOORS 1 SQ IN. PER 4000 BTUH* C IRCULA TING AIR DUCTS VENT THR OUGH R OOF D B A C E 1 SQ IN. PER 4000 BTUH* DUC