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88MTA

DeMu×e 4-Way NuMtipoise 2-Stage

Direct Vent Condensing Gas Furnace

\isit x__ v_.carrier.com

tnstammation, Start-up, and Operating tnstructions

Sizes 060-120, Series 120

HEATUNG & COOUNG

NOTE: Read theentire instruction manual be%re starting the

installation.

This symbol --> indicates a change since the last issue,

A93040

TABLE OF CONTENTS

SAFETY ( ONSIDERATIONS ..................................................... 2

INTRODU( TION 2

(?ODES AND STANDARDS ............................ 3

Safety ......................................................................................... 3

General Installation ................................................................... 3

Confhustion and Ventilation Air .............................................. 3

Duct Systems ............................................................................ 5

Acoustical Lining and Fibrous Glass Duct 5

Gas Piping and Gas Pipe Pressure Testing ................. 5

Electrical ( onnections ............................. 5

ELECTROSTATIC DISCHARGE (ESD) PRE(AUTIONS .... 5

APPLI( ATIONS ..................................... 6

General ............................................. 6

Lpflow Applications ............................... 6

Condensate Trap Location (Factory=Shipped

Orientation) ....................................... 6

Condensate Trap Tubing (Factou=Shipped

Orientation) ...................................... 6

Condensate Trap Location (Alternate Upflow

Orientation) ..................................... 7

Condensate Trap Tubing (Alternate Upflow

Orientation) ...................................... 7

Condensate Trap Field Drain Attachment ............... 8

Pressure Switch Tubing ................................ 8

Upper Collector Box and Inducer Housing (Unused)

Drain ( onnections .............................. 8

Condensate Trap Freeze Protection ................... 8

Downftow Applications ............................. 8

Condensate Trap Location ......................... 8

Condensate Trap Tubing ........................... 9

Condensate Trap Field Drain Attachment .............. 10

Pressure Switch Tubing ..................................................... 10

Condensate Trap Freeze Protection ................... 10

Horizontal Left (Supply-Air Discharge) Applications ..... l0

Condensate Trap Location ........................ 10

Condensate Trap Tubing ............................ 10

Condensate Trap Field Drain Attachments .............. l0

Pressure Switch Tubing .......................... l0

Condensate Trap Freeze Protection .................. 11

Construct a Working Platform ......................... 11

Horizontal Right (Supply=Air Discharge) Applications ........

Condensate Trap Location ..........................

Condensate Trap Tubing ............................ 13

Condensate Trap Field Drain Attachment .............. 13

Pressure Switch Tubing ........................... I3

Condensate Trap Freeze Protection .................. 13

Construct a Working Platform ...................... 13

LO( ATION .......................................... 13

General ......................................... 13

Furnace Location Relative to (ooling

Equipment ....................................... 14

Hazardous Locations ............................... 15

INSTALLATION ..................................... i5

Leveling Legs (If*Desired) ........................... 15

Installation in Upflow and Down flow

Applications ...................................... 15

Installation in Horizontal Applications .................. 17

Air Ducts ......................................... 17

General Requirements ........................... 17

Ductwork Acoustical Treatment .................... 17

Supply Air Connections .......................... 17

Return Air ( onnections .......................... 17

Elite* Arrangement .................................... 18

Bottom Closure Panel .............................. 19

Gas Piping ...................................... 20

Electrical ( onnections .............................. 20

115=V Wiring ................................. 22

24-V Wiring ................................... 23

Accesso*ies .................................... 23

Direct Venting ...................................... 23

Removal of Existing Furnaces flora Common Vent

Systems .......................................... 23

Combustion-Air and Vent Piping ....................... 25

Concentric Vent and Combustion-Air Termination

Kit Installation ................................... 30

Multiventing and Vent Terminations .................. 33

Condensate D*ain ................................. 33

General ...................................... 33

Application .................................... 34

Condensation Drain Protection ..................... 34

START=UP ADJUSTMENT AND SAFETY (HE(K ........ 34

General ........................................... 34

Prime (ondensate Trap With Warm ................... 37

Purge Gas Lines .................................. 37

Manufacturer reserves the right to disoontinue, or change at any time, specifications or des}gns without notice and without inourring obligations.

PC 101 Catalog No. 535-80129 Printed in USA Form 58MTA-7SI Pg 1 5-04 Replaces: 58MTA-6SI

Summary of content (52 pages)

PAGE 1
88MTA DeMu×e 4-Way NuMtipoise 2-Stage Direct Vent Condensing Gas Furnace HEATUNG & COOUNG \isit x__ v_.carrier.com tnstammation, Start-up, and Operating tnstructions Sizes 060-120, Series 120 NOTE: Read theentire instruction manual be%re starting the installation. Pressure Switch Tubing ..................................................... Condensate Trap Freeze Protection ................... Horizontal Left (Supply-Air Discharge) Applications ..... Condensate Trap Location ........................
PAGE 2
such as cleaning and replacing be performed by heating equipment, on labels attached precautions These instructions or cover national instructions especially to shipped those the minimmn standards safety C[TS unit and exceed requirements and safkty codes. certain other safety local codes and conform In some and instances, ordinances, that may not have kept up with changing tial construction practices. We minimum fbr a saf_ installation.
PAGE 3
%r use with natural gas conversion propane A (,SA (%rmerly kit is required gas to convert shall not be installed proper furnace installation blower con_partrnent.
PAGE 4
O AIRFLOW TYP CONDENSATE DRAIN TRAP LOCATION (DOWNFLOW & HORIZONTAL LEFT) z- OUTL CONDENSATE DRAIN TRAP LOCATION _ {DOWNFLOW & HORIZONTAL RIGHT) OR ALTERNATE _NN DIA GAS CONN ?_-IN DIA POWER CONN POWER !'NN D_A THERMOSTAT ENTRY 22 Hid _s-IN DIA ACCESSORY POWER ENTRY 24 SIDE INLET 9 _" TYP INLET CONDENSATE DRAIN LOCATION (UPFLOW) 1½_, 11 i¢ ,,,4_,. DRAIN LOCATION (UPFLOW) DIMPLE LOCATORS FOR HORIZON ]:AL HANGING NOTES: BOTTOM INLET I.
PAGE 5
This furnace isforindoor installatioo inabuilding constructed onsite. This [umace may beinstalled inamanufactured (mobile) home when stated onrating plate and using factor)/authorized kit..oncombustible This furnace may beinstalled flooring inalcove ordoset atMinimum Inches Clearance ToCombustible Construction asdescribed below. This furnace requires aspecial venting system. Refer totheinstallation instructions forparts listand method ofinstallation. This furnace isforuse with schedule-40 PVC, PVC-DV\h/, CP
PAGE 6
APPUCATIONS MINOR MAX 85°F PROPERTY Failure to fbllow DAMAGE this caution may result in minor property damage, Local codes application or over a finished In Canada, NS(NGPIC Step l--General Some assembly ! RETURN R °I .C "_ pressure tubes are connected instructions 2--Upflow In an upflow Fig. 4_Retum-Air section, and be are accordance required shown as shown in for with t\u'naces in Fig. 1. All drain and in Fig. 6. See appropriate for these procedures.
PAGE 7
t--- BLOWER SHELF / / /J- / / _ FURNACE X DOOR CONDENSATE \ TRAP (INSIDE) ]-- CONDENSATE TRAP FURNACE / / X \ ] FURNACE S,Dy IDE OOR / _ FIELD 2 '4 \ _-ALTERNATE DRAIN \ TUBE LOCATION \ CONDENSATE TRAP --& F'ELDJ 1 '2 DRAIN FURNACE --"1------ DRAIN CONN CONN SIDE VIEW ! END VIEW FRONT VIEW FRONT VIEW DRAIN TUBE LOCATION UPFLOW DOWNFLOW AND EXTERNAL UPFLOW APPLICATIONS HORIZONTAL APPLICATIONS ALTERNATE APPLICATIONS S OT#O 7 'So:< (OPTIONAL) .
PAGE 8
PLUG --_ CAP DRAIN TUBE & WHITE COLLECTOR BOX _,DRAIN TUBE (BLUE & WHITE STRIPED) (BLUE STRIPED) TUBE COLLECTOR BOX _'_ TUBE (PINK) "N (PINK) COLLECTOR TUBE TUBE BOX -- (GREEN) (GREEN) INDUCER DRAIN (MOLDED) TUBE (BLUE) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) O TRAP DRAIN TUBE O (BLUE) HOUSING DRAIN FACTORY-SUPPLIED DRAIN TUBE COUPLING (LEFT DRAIN OPTION) TUBE (VIOLET) A01031 FIELDqNSTALLED FACTORY-SUPPLIED DRAIN TUBE £ Fig.
PAGE 9
4.
PAGE 10
(a) Determine appropriate length andcut (b.)(onnect robetocondensate trap (c) Clamp robe toprevent anycondensate leakage. (2) (ondensate Trap Located on Right Side of Casing (a) Route inducer directly as shown 3. Relief housing &ain from inducer in Fig (b.) Determine (c) (onnect (d.) (lamp robe (violet housing 2. Remove 3.
PAGE 11
PLUG AUXILIARY BOX DRAtN TUBE (BLUE AND WHITE STRtPED) "J" BOX --_ O O © CONDENSATE TRAP \ \ X \_-- BOX EXTENSION DRAIN TUBE COLLECTOR BOX _ DRAIN TUBE (VIOLET) COLLECTOR BOX DRAIN TUBE (BLUE) \ EXTENS,ON TUBE XX DRAIN TUBE COUPLING RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR 040, 060, AND 080 HEATING iNPUT FURNACES A01029 Fig. 10--Horizontal Modif}" robe as described 1.
PAGE 12
COMBUSTION INTAKE VENT 12-1N. MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM EXITING THE VENT PIPE. SHUTOFF GAS VALVE ACCESS OPENING FOR TRAP SEDIMENT TRAP DRAIN CONDENSATE TRAP NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE FURNACE AND CONDENSATE TRAP WHEN A CONDENSING FURNACE IS INSTALLED ABOVE FINISHED CEILINGS. A93031 Fig.
PAGE 13
3. Instal! casing hole filler bag) into blower shelf cap (_actory-supplied hole where in loose parts 1 Disconnect trap was removed High collector Pressure 2. Extend collector previously FIRE, ]INJURY, Failure to _bllow this warning fire, personal Casing OR DEATH cap m_/st be installed condensate 4. Install trap robe connection rotating 5. Fill until unused into tabs snap check stubs trap caps (_hctoryosupplied NOTE: label) removed condensate c.
PAGE 14
t LEVEL (0") TO 1/2" MAX V2" MAX UPFLOW OR DOWNFLOW HORIZONTAL A02146 Fig. 13--Proper Condensate BACK Drainage A When a fk/rnace is installed so dlat supply ducts carry air circulated by the f_lrnace to areas outside the space return also be handled by ducts air must The ducts ensure nlent terminate a negative roolTl outside pressure the space condition containing sealed the t:urnace, to furnace containing FRONI A93043 casing. Fig.
PAGE 15
Step 3--Hazardous Locations 18-1N. MINIMUM TO BURNERS A93044 Fig. 16--Installation in a Garage A89014 FIRE, EXPLOSION, INJURY OR DEATH HAZARD Improper location or inadequate protection could result in fire or explosion When the fhmace is installed in a residential garage_ the bu*ners and ignition sources nll.lst be located at least 18 in. above the floor. The f_/rnace must be tocated or protected to avoid physical damage by vehicles.
PAGE 16
TABLE FURNACE CASBNG WIDTH 1--OPENING D_MENS_ONS (iN.
PAGE 17
When DISCHARGE FLANGE a fllrnace is installed DUCT the fhrnace fl_rnace NO Secure Seal / connections a 1=in. clearance ductwork t'or a distance 90B or local Fmanges assistance operation o1" per_bm_ance Do not bend cycling completely shown in Fig. 21. Step or bend it inward pad. Furnace and angle in Horizontal can be suspended iron supports. 3/8-in. all=thread 3/8-in.
PAGE 18
3/8-1N. ROD ANGLE IRON OR EQI ALTERNATE SUPPORT LOCATION 4-IN. MIN 8-IN MAX (B) (A) ROD LOCATION USING DIMPLE LOCATORS (SEE DIMENSIONAL DWG FOR LOCATIONS) __) 3/8-1N. HEX & WASHER (4) REQD PER ROD (A) PREFERRED ROD LOCATION (B) ALTERNATE ROD LOCATION (B) 13/16-1N.MAX ALTERNATE SUPPORT LOCATION FROM BACK (B) NOTES: 1. A 1 In. clearance minimum between top of furnace and combustible material. 2.
PAGE 19
Table 2--FILTER AiR FILTER LOCATED 171/2-1N. WIDE CASINGS ONLY: INSTALL FELD-SUPPLIED FILTER FILLER STRIP UNDER FILTER. INFORMATION IN BLOWER COMPARTMENT FILTER SIZE (IN.)* FILTER FURNACE CASBNG WIDTH (iN.
PAGE 20
Step 7--Gas Piping GAS Gas piping must be installed in accordance with national and local codes Refer to cun'ent edition of NFGC in the United States SUPPLY MANUAL Canadian installations must be made in accordance with NSCNG= PIC and all authorities having jm'isdiction. _/ II vSHUTOFF_ Gas supply line should be a separate tine running directly flora meter to _i/rnace, it" possible Refer to Table 3 for recommended gas pipe sizing. Table a--MAXiMUM NOMINAL IRON PIPE SBZE (IN.
PAGE 21
.... .... --- FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY24-V WIRING FACTORY1I5-V WIRING FIELD-SUPPLIED FUSED DISCONNECT 208/230- OR PHASE 208/230-V SINGLE 115-V FUSED DISCONNECT SWITCH (WHEN REQUIRED) CONDENSING UNIT NOTES: 1. Connect Y-terminal as shown for proper operation. 2. Some thermostats require a "C" terminal connection as shown. 3. If any of the original wire, as supplied, must be replaced, use same type or equivalent wire. A99071 Fig.
PAGE 22
Table5--APPROVED ASTM SPECNCATION (MARKED ON MATER_AL) D1827 COMBUSTION-NR B4ATER_AL PiPE FITTINGS ABS Pipe -- PVC Pipe -- D1785 AND VENT PIPE, FITTNG SOLVENT CEMENT AND PRNERS Schedule-40 Solvent Cement D2238 For ABS -- D2241 PVC Pipe -- SDR-21 & SDR-26 D2488 PVC -- Fittings Schedule-40 D2488 ABS -- Fittings -- For ABS Schedule-40 Solvent Cement D8884 For PVC -- -- D2881 ABS Pipe Fittings D2888 PVC Pipe Fittings DWV F488 CPVC -- Fittings Schedule-40 F44
PAGE 23
ELECTRIC DISCONNECT SWITCH ALTERNATE -FIELD LOCATION S ACTORY INSTALLED LOCATION ® (_/"/ A93033 Fig.
PAGE 24
CONNECTIONDIAGRAM RED FIRS M CAP-2 FIELD-DISCONNECT 112 BREAKER & DISCONNECT SV_ITCH SCHEMATIC NOTE #2 DIAGRAM (NATURALGAS& PROPANE) BLU -- _OM NEUTT%' L_jNo_ R HI NOTE #3 _._GR_JYEI TO 115VAC FUSE OR CIRCUIT LS HP IHBLOR BRN BRN ORNJ X'_/LGPS0'M4ENUSED) x'_/LPS I ? I HS] !, , I - t I T I I iF ....
PAGE 25
Combustim>air CARBON Failure MONOXIDE to follow connected the steps outlined to the ver*tir*g system could result The in carbon fol!owing connected while POISONING steps shall below for each appliance placed poisoning be for each beir*g placed connected See Table Furnace tached appliance to the x enting system 2. Inspect the venting system pitch, as required Z223H=2002NFPA some are Installation cmxosion and other ur*safe condition. 3.
PAGE 26
\ A _ item A Clearance Description Clearance Canadian above grade, veranda, porch, deck, balcony, or anticipated B Installation AREA WHERE TERMINAL iS NOT PERMITED (1) U.S Installation 12" (30cm) # (2) 12" (30 cm) snow level Clearance to a window or door that may be opened to a permanently 9"(23 cm) for appliances > 10,O00 Btuh (3 kW) regulator assembly 3" (91 cm) within 15"(4.
PAGE 27
SETUP SWITCHES LOW-HEAT ONLY AND BLOWER OFF-DELAY x TWINNING AND/OR COMPONENT TEST TERMINAL N N N J \ J / / ACRDJ - AIR CONDITIONING RELAY DISABLE JUMPER y 24-V-THERMOSTAT TERMINALS TRANSFORMER 24-VAC CONNECTIONS HUMIDIFIER TERMINAL (24-VAC 0.5 AMP MAX.) ....................... PL1 - LOW VOLTAGE MAIN HARNESS CONNECTOR 3-AMP FUSE LED OPERATION & J J: DIAGNOSTIC LIGHT PL3 115-VAC (L2) NEUTRAL-Jr CONNECTIONS B_,iOR J I HEAT B.
PAGE 28
NOTE: Select 1 vent pipe connection and 1 combustion-air pipe connection. NOTE: Select 1 vent pipe connection and 1 combustion-air pipe connection. AIR COMBUSTION-AIR _ COMBUSTION-AIR VENT COMBUSTIONAIR UPFLOW _;_ DOWNFLOW COMBUSTIONAIR COMBUSTIONAIR VENT HORIZONTAL-LEFT COMBUSTIONAIR AIR FLOW VENT DISCHARGE HORIZONTAL-RIGHT DISCHARGE A96187 Fig. 34--Combustion-Air and Vent Pipe Connections a.
PAGE 29
121,M,4 1 _._ VENT PIPE 12" MI N -_--_ l HORIZONTAL TO ROOF HORIZONTAL _ P,PE f PIPE TO SIDEWALL COMBUSTION-AIR COMBUSTION-AIR COMBUS_IO_N-AIR PIPE VENT PIPE 12"MIN ::_' 12" MIN ,,_D VENT PIPE VERTICAL TO ROOF VERTICAL TO SIDEWALL NOTE: A 12 In. minimum offset pipe section is recommended with short (5 to 8 ft) vent systems. This recommendation is to reduce excessive condensate droplets from exiting the vent pipe. A96230 Fig.
PAGE 30
TABLE 7--MAXIMUM ALTITUDE (FT} UNIT SBZE 060-12 080-12 080-16 0 to 2000 100-16 100-20 120-20 ALTITUDE (FT} UNIT SIZE (FT} notes at end 2 Pipe or 2-in Concentric 2 Pipe or 2-in Concentric OF 90 ° ELBOWS 1 2 3 4 5 6 1-1/2 20 15 10 5 NA NA 2 70 70 70 70 70 70 1-1/2 10 NA NA NA NA NA 20 2 55 50 35 30 30 2-1/2 70 70 70 70 70 70 2 5 NA NA NA NA NA 2-1/2 40 30 20 20 10 NA 3 70 70 70 70 70 70 2-1/2 one disk 10 NA NA NA NA NA 31 45 4
PAGE 31
TABLE 7--MAXINUN ALTITUDE (FT) UNIT SIZE 4001 to 5000_ (FT) (FT) (FT) 3 4 5 6 15 10 5 NA NA NA 52 2 64 59 58 53 52 2 44 39 26 21 20 11 2-1/2 70 70 70 70 70 70 100-16 100-20 2 Pipe or 3dn Concentric 2-1/2 31 22 13 12 NA NA 3 70 70 67 62 57 52 2 Pipe or 3-in. Concentric 3t no disk 53 46 40 33 26 20 41- no disk 70 70 70 70 70 70 TERMiNATiON TYPE PIPE DtA (iN.
PAGE 32
TABLE 7--MAXIMUM ALTITUDE TERMINATION TYPE UNiT SBZE (FT} 800t to 9000@ dN.)* 1 2 3 4 5 6 11 6 NA NA NA NA 2 Pipe or 2-in Concentric 2 49 44 42 37 35 34 080-12 080-16 2 Pipe or 2-in Concentric 2 33 28 17 12 10 NA 2-1/2 62 60 58 56 55 53 2 Pipe or 3-in Concentric 2-1/2 23 15 7 5 NA NA 3 59 54 49 44 39 34 2 Pipe or 3-in.
PAGE 33
AIR AND VENT 8 3/4" FOR 3"KIT 6 3/4" FOR 2" KIT MAINTAIN 12 IN. CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24 IN. ABOVE ROOF. A87224 Fig. 37--Roof Fig. 38--Concentric Vent and Combustion-Air Termination (Preferred} Termination (Preferred} 12 IN. CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE, WHICHEVER IS GREATER. Roof A93055 Fig. 39--Concentric 5. Disassemble loose pipe fitnngs.
PAGE 34
Furnace condensate is mildly 32 to 45. Due to corrosive pH neutralizing acidic, nature typically filter may be desired. to determine if a pH neutralizer in the pH range of this condensatQ Check of a condensate with local authorities is required APPLICATION The _lmace, drained A/C, supplied trap connections IN.
PAGE 35
TABLE 8--MAXIMUM ALLOWABLE EXPOSED VENT P{PE LENGTH (FT) WITH AND W_THOUT {NSULAT{ON IN WINTER DESIGN TEMPERATURE AMBIENT* WINTER DESBGN TEMPERATURE (OF) 20 UNiT SIZE 060 080 100 120 MAX PiPE DIAMETER (IN.) 2 WITHOUT W_TH 318=iN. OR INSULATION 44 THICKER INSULATIONt 70 0 2 21 70 -20 2 20 57 20 2 55 55 0 2 30 55 -20 2 16 55 20 2.5 58 70 0 2.5 29 70 -20 2.5 14 67 20 2.5 40 40 0 2.5 38 40 -20 2.
PAGE 36
A96128 Fig. 43--Rooftop Termination (Dimension "A" is Touching or 2-in. Maximum COMBUSTION AIR Separation) AIR COMBUSTION / A93056 Fig. 44--Concentric Vent and Combustion-Air Roof Termination (Dimension "A" is Touching or 2-in. Maximum Separation) A96129 Fig. 46--Raised SidewNl Termination when Walt Penetration is 12 in. or Less Above Snow or Grade (Dimension "A" is Touching or 2-in. Maximum Separation} VENT A93057 Fig.
PAGE 37
/ \ OPEN STAND --7 PIPE FOR / A/COR/ HUMIDIFIER ,L DRAIN TEE U h_ A94054 Fig. 48--ExamNe of Field Drain Attachment A99118 Fig. 50--Inducer Housing Drain Cap CONDENSATE FIRE HAZARD Failure to fbllow operation this caution or perfbm_ance This flmaace the burner "_ is equipped with a manual if a flame occurs in the burner switch. Correct Step (3 WRAPS 2--Prime rollout enclosure inadequate nent fhilure, or restricted the switch.
PAGE 38
NOTE: Low-heat=only switch, SW-I, selects either the tow=heat- only operation mode when ON, or adaptive heating OFF, in response to a call _br heat (See Fig. 32.
PAGE 39
atSEC1 orSE(2tothefurnace control (PU(notatW/W1, G, 2. Switching R, etc.). If flame is prm'ed fhrnace contlol operate the indncer longer when (PU BLWM not nmde Delayqfbumer HEAT flanm is proven the blower 66 sec after gas valve GV=M blower motor BLWM is energized IDM motor BLWM Simultaneously, energized is energized the electronic and remains BLWM is energized. (7.
PAGE 40
THERMIDISTAT TWO-STAGE FURNACE NOTE HEAT STAGE SINGLE-SPEED AIR CONDITIONER THERMIDISTAT TWO-STAGE FURNACE SINGLE-SPEED HEAT PUMP 11 2 RVSCOOLING_ N/A NOTE11 HEATSTAGE3 (FURNACEHi)_ HEAT STAGE 1 COOL STAGE 1 HEAT STAGE 2 [_ (FURNACE LO) HEAT/COOL STAGE (COMPRESSOR) FAN [_ 24 VAC HOT [_ DEHUMIDIFY [_ 24 VAC COMM [_ [Z2_ 1 FAN [_ HOT [_ / ......... 24 VAC DEHUMIDIFY 24 VAC COMM [_ [_ HUM [_ HUM HUMIDIFIER HUMIDIFY [_ (24 VAC) HUMIDIFY N/A ....
PAGE 41
DUAL FUEL TWO-STAGE THERMOSTAT SINGLE-SPEED FURNACE HEAT TWO-STAGE PUMP TWO-STAGE THERMOSTAT TWO-SPEED FURNACE NOTE 11 NOTE 12 AIR CONDITIONER RVS COOLING NOTE 11 E2_ HEAT STAGE 3 { URNACE HI) HEAT STAGE 2 (FURNACE LO) HEAT/COOL STAGE 1 (COMPRESSOR) FAN [_ 24 VAC 24VAC HOT E2_ [_ COMM [_ N/A 1] HUM RVS SENSING OUTDOOR !_ See notes 2, tl, and 12 A00281 CONNECTION ![_ See notes 1, 2, 4,11,14,15, and Fig.
PAGE 42
Notes for Fig. 52A-H: 1. Heat pump 2. Refer MUST to outdoor have a high pressure equipment 3. Select the "ZONE" 4. Outdoor switch Installation position on the two=speed Air Temperature Sensor _br dual _fiel applications, Inst_/ctions must for additional heat pump be attached No.1 on Thermidistat No. 1 on Them_idistat should be set in ON position 7. Dip switch No. 2 on Them_idistat should be set in OFF should be set in ON position No. 2 on Thermidistat Option 10.
PAGE 43
(ONTINL When O[ S BLOWER the R to G circuit motor BLWM HI HEAT, HEAT Tem_inal speed BLWM During by the thermostat, on continuous-blower or COOL EAC-! (17 seconds), BLWM speed befbre When the thermostat speed reverting (PU during will hold the blower the selected to continuous-blower speed to operate at tow=cool LO HEAT).
PAGE 44
TABLE 10--MODEL 58MTA ORIFICE SiZE AND HIGH/LOW-HEAT FOR CORRECT INPUTS NANIFOLD PRESSURES FOR USE WITH 060 THROUGH 120 SIZE FURNACES ONLY (TABULATED DATA BASED ON 20,000/13,000 BTUH PER BURNER, DERATED 2 PERCENT FOR EACH 1000 FT ABOVE SEA LEVEL)* SPECIFIC ALTITUDE RANGE {FT) AVG GAS NEAT VALUE (BTUIOU FT) 0.58 GRAVITY 0.60 OF NATURAL Manifold Pressure Orifice no. Manifold Pressure Orifice no. Manifold Pressure Orifice no. 850 43 3.7/1.5 43 3.8/1.6 42 3.2/1.4 875 43 3.5/1.
PAGE 45
TABLE 10--MODEL 58MTA ORIF_CE SIZE AND HIGHILOW-HEAT MANIFOLD PRESSURES FOR CORRECT iNPUTS (Continued} FOR USE WiTH 060 THROUGH 120 SIZE FURNACES ONLY(TABULATED DATA BASED ON 20,000f13,000 BTUH PER BURNER, DERATED 2 PERCENT FOR EACH 1000 FT ABOVE SEA LEVEL}* SPECIFIC ALTITUDE RANGE {FT) 0.58 GRAVITY 0.60 OF NATURAL Manifold Pressure Orifice no. Manifold Pressure Orifice no. Manifold Pressure Orifice no. Manifold Pressure 725 43 3.7/1.5 43 3.8/1.6 42 3.2/1.4 42 3.3/1.4 42 3.4/1.
PAGE 46
TABLE 10--MODEL 58MTA ORIFICE SIZE AND HIGH/LOW-HEAT NANIFOLD PRESSURES FOR CORRECT INPUTS (Continued) FOR USE WITH 060 THROUGH 120 SIZE FURNACES ONLY (TABULATED DATA BASED ON 20,000/13,000 BTUH PER BURNER, DERATED 2 PERCENT FOR EACH 1000 FT ABOVE SEA LEVEL)* SPECIFIC ALTITUDE RANGE (FT) AVG GAS HEAT VALUE (BTUiCU FT) 0.58 GRAVITY 0.60 0.66 Orifice no. Manifold Pressure Orifice no. Manifold Pressure Orifice no. Manifold Pressure Orifice no. Manifold Pressure 825 43 3.8/1.6 42 3.3/1.
PAGE 47
BURNER FLAME --_ _'- /_[ (PROPANE WHITE= NATURAL INLET BURNER 13 5 TURNS SILVER 12 TURNS) / (PROPANE NAT JRAL WHITE 9 5 TURNS S LVER 9 5 TURNS) MANIFOLD J A89020 A04048 --> Fig. 83--Redundant NOTE: DO NOT Automatic set tow-heat mani%ld we or more than 1.%in. wc %r natural outside this range, change main Fig. 54--Burner Gas Control Valve pressure less than 1.3=in. gas. If mani%ld burner orifices Flame pressure to obtain is pressure in this range.
PAGE 48
TABLE 11--ALTITUDE DERATE MULTIPLIER U.S.A. FOR SECONDS ALTITUDE (FT) 0=2000 PERCENT OF DERATE 0 DERATE MULTIPLIER FACTOR FOR U.S.A.* 1.00 2001 =3000 4-8 0.95 3001 =4000 6-8 TABLE SIZE FOR 1 REVOLUTION 0.
PAGE 49
a Place duct themmmeters in return and s_/pply ducts as to thruace as possible Be sure then_ometers do not heat exchangers so that radiant heat does not affect mometer readings. This is particularly important straight run ducts close 'see' ther= with TaNe 1a-Speed SPEED White Common COM B_ack High Coot b. When thermometer readings stabilize, subtlact return-air temperature t'rom supply=air tempe*ature to determine tern= peramre rise.
PAGE 50
Thiscontrolshutsoff gascontlolsystem andenergizes air-circulating blower motorif ihmace overheats. Recommended method of checking thislimitcontrol is to gradually block offremm airafterfurnace hasbeen operating ibraperiod ofatleast 5minutes.
PAGE 51
CH ECKLmST--BNSTALLATION LOAD CALCULATION Condensate Drain Heating Load (Btuh) Unit Level or Pitched Forward Cooling Load (Btuh) Internal Tubing Connections and Traps Furnace Model Selection COMBUSTION External Drain Connection Sloped AND VENT PiPiNG Termination Free of Kinks Leak Tight and Location Condensate Trap Primed before Start-Up Roof or Sidewall Heat Tape Installed if Required Termination Kit -- 2 Pipe or Concentric Combustion-Air CHECKLIST--START-UP Pipe Length Gas Input Rate (Set W
PAGE 52
Copyright 2004 CARRIER Manufacturer reserves Book 1 4 Tab 6a 8a PC 101 Corp. _ 7310 W. Morris St • Mdianapolis, the right to discontinue, CataMg No.