Carrier Gas furnace 58mta Instructions and recipes

HEATING & COOLING

58MTA

Deluxe 4-Way Multipoise 2-Stage

Direct Vent Condensing Gas Furnace

Visit www.carrier.com

Installation, Start-up, and Operating Instructions

Sizes 060-120

NOTE: Read the entire instruction manual before starting the

installation.

This symbol + indicates a change since the last issue.

A93040

TABLE OF CONTENTS

SAFETY CONSIDERATIONS ..................................................... 2

INTRODUCTION .......................................................................... 2

CODES AND STANDARDS ........................................................ 3

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

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

Combustion and Ventilation Air .............................................. 3

Duct Systems ............................................................................ 3

Acoustical Lining and Fibrous Glass Duct .............................. 3

Gas Piping and Gas Pipe Pressure Testing .............................. 3

Electrical Connections .............................................................. 5

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ........ 5

APPLICATIONS ............................................................................ 6

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

Upflow Applications ................................................................. 6

Condensate Trap Location (Factury-Shipped

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

Condensate Trap Tubing fEactory-Shipped

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

Condensate Trap Location tAlternate Upflow

Orientation/ .......................................................................... 7

Condensate Trap Tubing (Alternate Upflow Orientation/.7

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

Pressure Switch Tubing ....................................................... g

Upper. Collector Box and Inducer Housing (Unused)

Drain Connections ............................................................... 8

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

Downflow Applications ............................................................ 8

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

Condensate Trap Tubing ..................................................... 8

Condensate Trap Field Drain Attachment .......................... 9

Pressure Switch Tubing ....................................................... 9

Condensate Trap Freeze Protection .................................... 9

Horizontal Left (Supply-Air Discharge) Applications ............ 9

Condensate Trap Location .................................................. 9

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

Condensate Trap Field Drain Attachments ...................... 10

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

Condensate Trap Freeze Protection .................................. I1

Constrnct a Working Platform .......................................... 11

Horizontal Right (Supply-Air Discharge) Applications ........ 1I

Condensate Trap Location ................................................ I 1

Condensate Trap Tubing ................................................... I 1

Condensate Trap Field Drain Attachment ........................ 12

Pressure Switch Tubing ..................................................... 12

Condensate Trap Freeze Protection .................................. 12

Construct a Working Platform .......................................... 12

LOCATION .................................................................................. 13

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

Furnace Location Relative to Cooling

Equipment ............................................................................... 13

Hazardous Locations ............................................................... 14

INSTALLATION ......................................................................... 14

Leveling Legs (If Desired) ..................................................... 14

Installation in Upflow and Downflow

Applications ............................................................................ 14

Installation in Horizontal Applications .................................. 16

Air Ducts ................................................................................. 16

General Requirements ....................................................... 16

Ductwork Acoustical Treatment ....................................... 16

Supply Air Connections .................................................... 16

Return Air Connections ..................................................... t6

Filter Arrangement .................................................................. 17

Bottom Closure Panel ............................................................. 18

Gas Piping ............................................................................... 18

Electrical Connections ............................................................ 19

115-V Wiring ..................................................................... 19

24-V Wiring ....................................................................... 2l

Accessories ........................................................................ 21

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

Remov,'d of Existing Furnaces from Common Vent

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

Combustion-Air and Vent Piping ..................................... 24

Concentric Vent and Combustion-Air Ternlination

Kit Installation ................................................................... 28

Multiventing and Vent Terminations ................................ 32

Condensate Drain .................................................................... 32

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

Application ......................................................................... 33

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

START-UP ADJUSTMENT AND SAFETY CHECK .............. 34

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

Sequence of Operation ............................................................ 35

Two-Stage Heating With Single-Stage Thermostat

(Adaptive Model ................................................................ 35

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

PC 101 Catalog No. 535-80042 Printed in U.S.A. Form 58MTA-3SI Pg 1 7-02 Replaces: 58MTA-1SI

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

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

-CY

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

downflowinstallations,afactoryaccessoryfloorbasemustbe

usedwheninstalledoncombustiblematerialsandwoodflooring.

Specialbaseisnotrequiredwhenthisfurnaceisthstalledonthe

mmmthcturer'scoilassemblyorwhenthemanufacturer'scoilbox

isused.Thedesignofthe5gMTAfurnaceisnotC.S.A,(A.G.A.

andC.G.A.)certifiedforinstallationinmobilehomes,recreational

vehicles,oroutdoors.This furnace is suitable for installation in a

structure built on site or a manufactured budding completed at

final site.

1. Combustion products must be discharged outdoors, Connect

this furnace to an approved vent system only, ,'tqspecified in

the "Venting" section of these instructions

2. Never test for gas leaks with an open flame. Use a commer-

cially available soap solution made specifically for the detec-

tion of leaks to check all connections, as specified in the "Gas

Piping" and "Stari-Up, Adjustment, and Safety Cbeck" sec-

tion.

3. Always install furnace to operate within the furnace's intended

temperature-tise range with a duct system which has an

external static pressure within the allowable range, as speci-

fied in the "Adjustments" section. See furnace rating plate.

4. When a furnace is installed so that supply ducts carry air

circulated by the furnace to areas outside the space containing

the furnace, the return air shall also be handled by duct(s)

sealed to the furnace casing and terminating outside the space

containing the furnace.

5. Agas-fired furnace for installation in a residential garage must

be installed as specified in the warning box in the "'Location"

section.

6. The furnace is not to be used for temporary heating of

buildings or structures under construction.

This furnace is designed lk,r continuous return-air minimum

temperature of 60 °F db or intermittent operation down to 55°F db.

Return-air temperature must not exceed 85°F db, See Fig. 4.

This furnace is shipped with the drain and pressure tubes con-

nected for UPFLOW applications. Minor modifications are re-

quired when used in DOWNFLOW, HORIZONTAL RIGHT,

or HORIZONTAL LEFT Isupply-air discharge direction) appli-

cations as shown in Fig. 1. See details in Applications section.

This furnace must be installed with a direct-vent (combustion air

and flue) system and a factory accessory termination kit. In a

direct-vent system, all air for combustion is taken directly from the

outdoor atmosphere and all flue gases are discharged to the

outdoor atmosphere. See furnace and factor,,' accessory vent-air

intake termination kit instructions for proper installation.

This furnace is shipped with the following materials to a,_sist in

proper furnace installation. These materials are shipped in the main

blower compartment.

Installer Packet includes:

Installation, Startup, and Operating Instructions

Service and Maintenance Instructions

User's Information Manual

Warranty Certificate

Loose Parts Bag includes: Quantit

Pressure tube extension 1

Collector Box or condensate trap extension tube t

Inducer housing drain tube 1

l/2qn CPVC street elbow 2

Drain tube coupling 1

Drain tube coupling grommet 1

Vent and combustion-air intake pipe support 2

Condensate trap hole filler plug 3

Vent and combustion-air intake hole filler plug 2

Cornbustioo-air intake pipe podorated disk assembly 1

Vent Pipe Extension 1"

• ONLY supplied with some furnaces.

For accesso_, installation detail, refer to the accessory, installation

instruction.

NOT[:: Remove all shipping materials before operating furnace.

CODES AND STANDARDS

Follow all national and local codes and standards in addition to

these instructions. The installation must comply with regulations

of the serving g_s supplier, local building, heating, plumbing, and

other codes. In absence of local codes, the installation must

comply with the national codes listed below and ,all authorities

having jurisdiction,

In the United States and Canada, follow all codes and standards for

the following:

Step 1--Safety

US: National Fuel Gas Code (NFGC) NFPA 54-1999/ANSI

Z223.1-1999 and the Installation Standards, Warm Air Heating

and Air Conditioning Systems ANSI/NFPA 90B

• CANADA: CSA B149.1-00 National Standard of Canada,

Natural Gas and Propane Installation Code (NSCNGP1C)

Step 2--General Installation

US: current edition of the NFGC and the NFPA 90B. For

copies, contact the National Fire Protection Association Inc.,

Battery, march Park, Quincy, MA 02269: or for only the NFGC

contact the American Gag Association, 400 N. Capitol., N.W.,

Washington DC 20001

• CANADA: NSCNGPIC. For a copy. contact Standard Sales,

CSA International, 178 Rexdale Boulevard. Etobicoke (Tor-

ontoh Ontario, M9W IR3, Canada.

Step 3---Combustion and Ventilation Air

•US: Section 5.3 of the NFGC. Air for Combustion and

Ventilation

• CANADA: part 7 of the NSCNGPIC. Venting Systems and Air

Supply for Appliances

Step 4--Duct Systems

US and CANADA: Air Conditioning Contractors Association

IACCA! Manual D, Sheet Metal and Air Conditioning Con-

tractors National Association (SMACNA), or American Soci

ety of Heating, Refrigeration, and Air Conditioning Engineers

(ASHRAEI 2001 Fundamentals Handbook Chapter 34.

Step 5---Acoustical Lining and Fibrous Glass Duct

US and CANADA: current edition of SMACNA, NFPA 90B as

tested by UL Standard 181 for Class 1 Rigid Air Ducts

Step 6--Gas Piping and Gas Pipe Pressure Testing

• US: NFGC; chapters 2, 3.4, and 9 and national plumbing codes

• CANADA: NSCNGPIC Parts 3.4, 5, A. B, E, G, and H.

2-IN. COMBUSTION-

2-IN. VENT SONN

_-IN. DIA THERMOSTAT

ENTRY

!7 ............. *q_

14 _ SIDE INLET

TYP

I"-D- 23 'a'TYP

SIDE INLET

_'_ 26 _,w TYP

f ONDENSATE DRAIN

TRAP LOCATION

(DOWNFLOW &

HORIZONTAL LEFT)

F hqN DIA

POWER CONN

ACCESSORY

POWER ENTRY

i"-_'-'- CO ND EN SAT E l

DRAIN TRAP

LOCATION

(ALTERNATE 4

UPFLOW)

TYP

CONDENSATE

DRAIN LOCATION

(UPFLOW)

AIRFLOW

TYR

_NLET

tI,i_, 41= _ E ...._.._p

TYP

CONDENSATE DRAIN

TRAP LOCATION _

(DOWNFLOW &

Hon{ZONTAL RIGHT) _

OR ALTERNATE

!_-IN, DIA GAS CONN

_28_ _1

_26 t_t_ "r--

26 _/_r

22 S'I_¸¸ I_

19_ "_-- I_ ¸

--+ _2-1N CONMNBUSTION- -_-

AIR CO s_la,,

_'-"_ _"zIN DIA

THERMOSTAT ENTRY

,f2-1N VENT CONN

I S_DE INLET

397_

_E**+_............ A+

J_I 24 '1' _ _ '1' rr

DIMPLE LOCATORS BOTTOM INLET

FOR HORIZONTAL

HANGING

NOTES: 1. Minimum return-air openings at furnace, based on metal duct. If flex duct is used,

see flex duct manufacturer's recommendations for equivalent diameters.

2. Minimum return-air opening at furnace:

a. For 800 CFM-16-in. round or 14'/_x 12-in. rectangle.

b. For 1200 CFM-20-in, round or 14'/= x 19'/_-in. rectangle.

c. For 1600 CFM-22-in, round or 14% x 23%-in. rectangle,

d. For airflow requirements above 1800 CFM, see Air Delivery table in Product Data

literature for specific use of single side inlets. The use of both side inlets, a

combination of 1 side and the botlom, or the bottom only will ensure adequate

return air openings for airflow requirements above 1800 CFM at 0.5" W.C. ESP.

UNIT SIZE D E

060-12 15-7/8 16

080-12 15-7/8 16

080-16 15-7/0 16

100-16 19-3/8 19-1/2

100-20 19-3/8 19-1/2

120-20 22-7/8 23

DIMENSIONS (IN,)

17-1/2

24-1/2

Fig. 2--Dimensional Drawing

A02149

INSTALLATION

_sforcedalrfum_c_iseqlJippedfor_w_lna_at;_ltltudes0-10,030ff(0 3,(T_Ont,ex_140sizeFumaces_eo_app_edforaYdbJdeS0 7,000_t(0-2.135m)

_accesso__suppled_ _emz_acturef,sh_beusedtoo0_ to0nX_aneg_ useormay_ _ _ _ _ _ _ .

*i_,sfurnace is forindo_ inst_la_Xl m a I_ildng cons_uctedon site. 1_=s_mac_ rn_y_ _ _ a_(_l_) _ _ _ _ r_ _e _ _ _

au61cr_edk&

_lLsfunitemaybeinsl_le3oncorrl>Jsa_efloodngin_o3_eorct_setalrd_mum_rance fromc_ _

3_isap_iancerequ_esaspeoalv_r_ systemRefertotheinsta_at_ninstnJc_3nsloq_ls listandrrelt_dofinst_ _ _ __ _ _ _ _, _

CP_, or A_pipe._mdst n0(13e,_nledincomrno_wil_o_e_as-flred_oplia_x_5. C_oughwttchv_r __ _24i_

(_O0r//n), nirirnum 3/4 i_c_ (19 ram)It,_ (inditing roo_g _).

Cette foun_se _ _r Dul_ e_t _F_oee pour_l_a_ avec _az nab_el elalludes _ _e 0 3,050m

((3-10,000p_).exc_pt_ c_ f_ d_ 140t_Jle so_tp_J" a_ oomp_ _02.13r_n(0 -7.000 p)

U_liSe:_ne tn_Jssede cor_er_on _un_e pa_le P_, 9our pa_:_r au g_z 10ropal_OUpourcertal_ _ _ _ _d.

Cede fourna_ea a_ p_s$ e_tpou_ins_la_ &I_nt_neu_d,3nsunt_rnent cor_ _Zl_. _ _ _ _ _ _ _ i_ _ _ n_ _

(m_son m0t_le)_i_e_cnt p_"la 13_ 9gnal_t_ et s_I_utd_ une trousses_c_ _ _ _

Cette _n_,se peut Otre _lee surunplan:t_ _e d_s uqer_ =._ ou unI_ac_d en obsen'ant les d_ga_ _p_ _ _ _.

Cotapp_e_l rV_c_e un s'yst_ d _wacu_on speo_. La _d_st_la_on etI_ li_e OesI_CeS _ _ _ _ _ d_e _ _

sd_liseravecbvJvaute_e_snon_mc_tures4OPVC, PVC-Dv_CPVC, ou _et _enepeut pas_e'even_l_econj_r_nent a_ecd'au0_esappa_etsb_z. Em_=_=urdela

O0_ au b-aveesde laque_e il est 13ec=_oleda _re passer los luyal_ d a_ra_on (adrrissloW_): 24 _ (_ _) _ _4 _ (19_) _ (y _ _ t_e).

FO_up_oN and do_ applications, fu_ must be instaJ_=dleve_ or i_ched ',_thn 1_

of level FOr a hor_ 8Dplica_on, the flJ_ nlu_ be pltch_ rclr_rnum 1/4"to

ma_mum of 112"forv_ for 17:operdrainage. See Ir_lafa_n Manual for IMI_RTANT urlt

suppo:tdstals_n_al ap_on_

Pour des ;_oplic_honsde flL_ ascendant _ d_ce_a_t, la f_um_se d_t _tre ir_tall_ _

nive_u o_ in:tir_e a I_ plus de 1/2" du nlv_ Pour une _of_iG_tJ(_ honz(_ltate, ta

fcorna_ dot_treinc_r'eeervrer_ran_m1/4"etrn_ornum1/'Z'cIJrw_aJ0_r teciranage

&Encasdin_tall_nen "on_onzo_de,oo_ulterlesnE_rr_nts

la_3_ANTS surle _cons e_rna_ dinst_la_on.

MINIMUM INCHES CLEARANCE TO COMBUSTIBLE CONSTRUCTION

ALL pO_I'I1ONS:

_t _,lnimumflontclearancef_-serv,,ce30inches(762mm).

1_)Nzefurnacesrequre1inchbackdeetancetocontJustiUerr_e_ais

As_t:_y,Part NO.CD5c_CKS,_ C_ICasing,PadNo,KCAKC.

Linecc_tact _pen'tis_iNe onty I_ lines fc_n'_d by intefs_<;ns of top and t_.o s_:_esof furnac_

§ _earancesho_nisf_r_ir_et and_r o_e_end_

DEGAGEMENTMINIMUMENPOUCESAVECELEMENTSDECONSTRUCTIONCOMBUSTIBLES

POUR TOIJS LES POSITIONS:

_t [_g_m'_ a'_"tmr"raur_de7mmmI_0P°)linerre_r_Jm"

Fr_H_s fo_ de t40 taille. I po (25ram) de_age_T_nt des rmd_ _e6t requ_

LA9o_moNCQURA_TDE_CENOANT:

F_rli_taflatio_s_le combu_il_es4_ulementonutiliselabase "1 e,l:_ce

noK_L_OIALL _eserpefllir_ pie_en °_CKS,_ulecarter_n, piece

noKCAKC

POURLAPOSfllONHORIZONTALE:

Le cc_tact n'e_t _ent re les lignesfomt_ par les intemec1_onsdu desks et des d_es de la

<3_s_ _ I__i_e, _ d_ _iw_, desrnor_ <_delaCf_te duI_ment.

La _stance indquee co_ceme I'ext_wt e du d'ardvee d'air etr e_h_Tite du tuyau de sodie d'_r.

Pourlosfc_na_s de120el140lalle,1po(l_) degagerne_desmatena_o0rd0us_t_estrec@s

_, 324999-201 REV.D {LITTOP)

L_VEL (0") ,, MIN 114"

TO TO

1/2" MA _ ! i ,q

_RONT I r --

UPFLOWOR _"_ FFRONT _[

11 _ HORIZONTAL

DOWNFLOW L_

_lls lumace is aporoved for UPR_OW, DOVe, FLOWaed

C_te foun_se e_ al_oev_e pc_ 1ins_la_n HOFI;_ONTALE

ena circui_f!_ d air V_ LE HAUT etVERS LEBAS.

JA02148

--) Fig. 3_Clearances to Combustibles

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

PROCEDURE

"_ _ MAX 851=

FRONT

RETURN

AIR MIN 55°F

A93042

Fig. 4_Return-Air Temperature

Step 7--Electrical Connections

•US: National Electrical Code (NEC) ANSI/NFPA 70-2002

•CANADA: Canadian Electrical Code CSA C22.1

Use this procedure for ,all installed ,and aninstalled furnaces. An

ESD service kit _available from commercial sources) may be used

to prevent ESD damage.

Electrostatic discharge can affect electronic components.

Follow the Electronic Discharge Precautions Procedure listed

below during furnace inLstallation and servicing to protect the

furnace electronic control. Precautions will prevent electro-

static discharges from personnel and hand tools which are

held during the procedure. These precautions will help to

avoid exposing the control to electrostatic discharge by

putting the furnace, the control and the person at the same

electrostatic potential.

I. Disconnect all power to the furnace. Multiple disconnects may

be required, DO NOT TOUCH THE CONTROL OR ANY

WIRE CONNECTED TO THE CONTROL PRIOR TO DIS-

CHARGING YOUR BODY'S ELECTROSTATIC CHARGE

TO GROUND.

2. Firmly touch the clean, unpainted, metal surface of the furnace

chassis which is close to the control. Tools held in hand during

grounding will be discharged.

FBLOWERSHELF FURNACE

_[_ _)R FCONDENSATE

CONDENSATE TRAP

f--TRAP (INSIDE FURNACE

SIDE

FIELD 26¼ t'/2

DRAIN

LALTERNATEDRAIN CONN

TUBE LOCATION

CONDENSATETRAP _ SIDE VIEW FRONT VIEW

DRAINTUBE LOCATION DOWNFLOW AND ALTERNATE

UPFLOW APPLICATIONS EXTERNAL UPFLOW APPLICATIONS

FURNACE

OOO_ _ FURNACE

SIDE

_../ 26 ¼ ¾

FIELD

DRAIN

CONN

END VIEW FRONT VIEW

HORIZONTAL

APPLICATIONS

SLOT O 2gN%7

APPLICATION

(OPTIONAL)

(WHEN USED)

FRONT VIEW

1/40D

COLLECTOR BOX TO

TRAP RELIEF PORT

I_OD

INDUCER HOUSING

"'L_.- DRAIN CONNECTION

s/aO D

iCOLLECTOR BOX

' DRAIN CONNECTION

SCREW HOLE FOR

_ UPFLOW OR DOWN-

'FLOW APPLICATIONS

(OPTIONAL)

21/4 _ _ _/_IN. PVC OR CPVC

SIDE VIEW

Fig. 5_Condensate Trap

A93026

3. You may proceed to service the control or connecting wires as

long as you do nothing to recharge your body (moving or

shuffling feet, touching ungrounded objects, etc./.

4. If you touch ungrounded objects, firmly touch a clean,

unpainted metal surface again before touching control or

wires.

5. Before removing a new control I?om its container, discharge

your body's charge to ground. If the control is to be installed

in a furnace, follow items 1 through 4 before bringing the

control or yourself in contact with the furnace. Put all used and

new controls into containers before touching ungrounded

objects.

APPLICATIONS

Step l_General

Some assembly and modifications are required for furnaces

installed in any of the 4 applications shown in Fig. 1. All drain and

pressure rubes are connected as shown in Fig. 6. See appropriate

application instructions for these procedures.

Step 2--Upflow Applications

In an upflow application, the blower is located below the burner

section, and conditioned air is discharged upwards.

CONDENSATE TRAP LOCATION (FACTORY-SHIPPED

ORIENTATION)

The condensate trap is factory installed in the blower shelf and

factory connected for UPFLOW applications. A factory-supplied

tube is used to extend the condensate trap drain connection to the

desired furnace side for field drain attachment. See Condensate

Trap Tubing (Factory-Shipped Orientation) section for drain tube

extension details. (See Fig. 5.)

CONDENSATE TRAP TUBING (FACTORY-SHIPPED

ORIENTATION)

NOTE: See Fig. 6 or tube routing label on main furnace door to

confirm location of these tubes.

1. Collector Box Drain, Inducer Housing Drain, Relief Port, and

Pressure Switch Tubes

These tubes should be factory attached to condensate trap and

pressure switch ready for use in upflow applications. These

tubes can be identified by their connection location and ,also

by a color label on each tube. These tubes _e identified as

follows: collector box drain tube (blue label Linducer housing

drain tube (violet label or moldedL relief port robe (green

label), and pressure switch tube (pink label).

2. Condensate Trap Drain Tube

The condensate trap drain connection must be extended for

field attachment by doing the following:

a. Determine location of field drain connection. (See Fig. 2 or

6.)

NOTE: If iaternal filter or side Filter/Media Cabinet is used, drain

tube should be located to opposite side of casing of return duct

attachment to assist in filter removal.

O /

DRAIN TUBE (BLUE

& WHITE STRIPED)

COLLECTOR BOX --'_

TUBE (PINK)

TUBE (GREEN)

(MOLDED) DRAIN

TUBE (BEHIND

COLLECTOR BOX

DRAIN TUBE)

DRAIN TUBE (BLUE)

DRAIN TUBE (BLUE

& WHITE STRIPED)

TUBE (PINK)

COLLECTOR BOX

TUBE (GREEN)

DRAIN TUBE (BLUE)

TRAP

FACTORY-SUPPLIED

DRAIN TUBE

COUPLING (LEFT

DRAIN OPTION)

FIELD-INSTALLED

FACTORY-SUPPLIED

DRAIN TUBE

FIELD-INSTALLED

FACTORY-SUPPLIED

lf2qN. CPVC STREET

ELBOWS (2) FOR

LEFT DRAIN OPTION

FIELD-INSTALLE[

FACTORY-SUPPLIED

DRAIN TUBE

COUPLING (RIGHT

BRAIN OPTION) A01030

Fig. 6--Factory-Shipped Upflow Tube

Configuration

(Shown with Blower Access Panel Removed)

b. Remove and discard casing drain hole plug button from

desired side.

c. Install drain tube coupling grommet (factory-supplied in

loose parts bag) in selected casing hole.

d. Slide drain tube coupling (factory-supplied in loose parts

bag) through _ommet ensuring long end of coupling faces

blower.

e. Cement 2 factory-supplied l/2-in, street CPVC elbows to

the rigid drain tube connection on the condensate trap. (See

Fig. 6.) These elbows must be cemented together and

cemented to condensate trap drain connection.

NOTE: Failure to use CPVC elbows may allow drain to kink and

prevent draining.

f. Connect larger diameter drain tube and clamp (factory-

supplied in loose parts bag) to condensate trap and clamp

securely.

g. Route tube to coupling and cut to appropriate length.

h. Attach tube to coupling and clamp securely.

CONDENSATE TRAP LOCATION (ALTERNATE UPFLOW

ORIENTATION)

An alternate location for the condensate trap is the left-hand side

of casing. (See Fig, 2 and 7.)

HOUSING

DRAIN TUBE

(VIOLET)

Fig. 7--Alternate Upflow Configuration and Trap

Location

NOTE: If the alternate left-hand side of casing location is used,

the factory-connected drain and relief port tubes must be discon-

nected and modified for attachment. See Condensate Trap Tubing

/Ahernate Upflow Orientation) section for tubing attachment. To

relocate condensate trap to the left-hand side. perform the follow-

ing:

1. Remove 3 tubes connected to condensate trap.

2. Remove trap from blower shelf by gently pushing tabs inward

and rotating trap.

3, Install casing hole filler cap (factory-supplied in loose parts

bag) into blower shelf hole where trap was removed.

4, Install condensate trap into left-hand side casing hole by

inserting tube connection stubs through casing hole and

rotating undl tabs snap into locking position.

5, Fill unused condensate trap casing holes with plastic filler

caps (factory-supplied in loose parts bag).

CONDENSATE TRAP TUBING (ALTERNATE UPFLOW ORI

ENTATION)

NOTE: See Fig. 7 or tube routing label on main furnace door to

confirm location of these tubes.

I, Collector Box Drain Tube

Connect collector box drain tube (blue label) to condensate

trap.

NOTE: On 17-1/2 in. wide furnaces ONLY. cut tube between

corrugated sections to prevent kinks from occmring.

2. Inducer Housing Drain Tube

a. Remove and discard LOWER (molded) inducer housing

drain tube which wa._ previously connected to condensate

trap.

b.Useinducerhousingdrainextensiontube (violet label and

factory'-supplied in loose parts bagl to connect LOWER

inducer housing drain connection to the condensate trap.

c. Determine appropriate length, cut, and connect tube.

d. Clamp tube to prevent any condensate leakage.

3. Relief Port Tube

a. Connect relief port tube (_een label) to condensate trap.

b. Extend this tube (if required) by splicing to small diameter

tube (factory-supplied in loose parts bag).

c. Determine appropriate length, cut, and connect tube.

CONDENSATE TRAP FIELD DRAIN ATTACHMENT

Refer to Condensate Drain section for recommendations and

procedures.

PRESSURE SWITCH TUBING

The LOWER collector box pressure tube /piak label) is factory,

connected to the High Pressure Switch and should not require any

modification.

NOTE: See Fig. 6 or 7 or tube routing label on main furnace door

to check for proper connections.

UPPER COLLECTOR BOX AND INDUCER HOUSING (UN

USED) DRAIN CONNECTIONS

1. Upper collector box drain connection

Attached to the UPPER collector box drain connection is a

factory-installed corrugated, plugged tube (blue and white

striped label). This tube is plugged to prevent condensate

leakage in this application. Ensure this tube is plugged.

NOTE: See Fig. 6 or 7 or tube routing label on main furnace door

to check for proper connections.

2. Upper inducer housing drain connection

Attached to the UPPER (unused) inducer housing drain

connection is a cap and clamp. This cap is used to prevent

condensate leakage in this application. Ensure this connection

is capped.

NOTE:: See Fig. 6 or 7or tube routing label on main furnace door

to check for proper connections.

CONDENSATE TRAP FREEZE PROTECTION

Refer to Condensate Drain Protection section for recommenda-

tions and procedures.

Step 3_Downflow Applications

In a downflow furnace application, the blower is located above the

burner section, and conditioned air is discharged downwards.

CONDENSATE TRAP LOCATION

The condensate trap must be removed from the factory-installed

blower shelf location and relocated in selected application location

as shown in Fig. 2, 8, or 9.

To relocate condensate trap from the blower shelf to desil_d

location, perform the following:

l. Remove 3 tubes connected to condensate trap.

2. Remove trap from blower shelf by gently pushing tabs inw,'u-d

and rotating trap.

3. Remove casing hole filler cap from casing hole./See Fig. 2, 8,

or 9.)

4. Install casing hole filler cap into blower shelf hole where trap

was removed.

5. Install condensate trap into desired casing hole by inserting

tube connection stubs through casing hole and rotating until

tabs snap into locking position.

DRAIN TUBE (BLUE)

TUBE (GREEN)

COLLECTOR BOX -_.

EXTENSION TUBE

COLLECTOR BOX

TUBE (PINK)

COLLECTOR BOX

DRAIN TUBE (BLUE

& WHITE STRIPED)

COLLECTOR BOX-_,

EXTENSION TUBE

TRAP ©

INDUCER HOUSING-

DRAIN TUBE (VIOLET)

Fig. 8---Downflow Tube Configuration

(Left-Hand Trap Installation)

©©

A01023

_" PLUG

F CAP

COLLECTOR BOX

F DRAIN TUBE (BLUE)

COLLECTORBOX

f TUBE(PINK)

COLLECTORBOX

TUBE(GREEN)

COLLECTORBOX

EXTENSIONTUBE

-- COLLECTORBOX

DRAINTUBE (BLUE

&WHITESTRIPED)

"_ COLLECTORBOX

EXTENSIONTUBE

INDUCERHOUSING

DRAINTUBE

_ _VIR(_LET)

.F O ENSATE

_'_"-- COLLECTOR BOX

EXTENSION

DRAINTUBE

A01024

Fig. 9_Downflow Tube Configuration

(Right-Hand Trap Installation)

CONDENSATE TRAP TUBING

NOTE: See Fig. 8 or 9 or tube routing label on main furnace door

to check tbr proper connections.

Relocaterobesasdescribedbelow.

1.CollectorBoxDrainTube

a.Removefactory-installedplugfromLOWER collector box

drain tube tblue and white striped label).

b. Install rentoved cl,-mlp and plug into UPPER collector box

drain tube (blue labell which wa_ connected 1o condensate

trap.

c. Connect LOWER collector box drain connection to con-

densate trap.

(I.) Condensate Trap Located on Left Side of Casing

(a3 Connect LOWER collector box drain tube !blue

and white striped label! to condensate trap. Tube

does not need to be cut.

(b.) Clamp tube to prevent any condensate leakage.

(2.) Condensate Trap Located on Right Side of Casing

(a.! Install drain robe coupling (factory-supplied in

loose parts bag) into collector box drain tube

Iblue and white striped label) which was previ-

ously plugged.

(b.) Connect larger diameter drain tube Ifactory-

supplied in loose parts bag! to drain tube cou-

pling, extending collector box drain tube tbr

connection to condensate trap.

(c.) Route extended collector box drain tube directly

from collector box drain to condensate trap as

shown in Fig. 9.

(d.) Determine appropriate length and cut.

(e.) Connect to condensate trap.

(f.) Clamp tube to prevent any condensate leakage.

2. Inducer Housing Drain Tube

a. Remove factory-installed cap ,and champ from LOWER

inducer housing drain connection.

b. Remove and discard UPPER (molded) inducer housing

drain tube which was previously connected to condensate

trap.

c. Install cap and clamp on UPPER inducer housing drain

connection where molded drain tube was removed.

d. Use inducer housing drain tube (violet label and factory.-

supplied in loose parts bag) to connect LOWER inducer

housing drain connection to the condensate trap.

e. Connect inducer housing drain connection to condensate

trap.

(13 Condensate Trap Located on Left Side of Casing

(a.) Determine appropriate length and cut.

lb.) Connect tube to condensate trap.

(c.I Clan_p tube to prevent any condensate leakage.

(2.) Condensate Trap Located on Right Side of Casing

{a.I Route inducer housing drain tube (violet label)

directly from inducer housing to condensate trap

as shown in Fig. 9.

lb.) Determine appropriate length and cut.

(c.) Connect tube to condensate trap.

(d./ Clamp tube to prevent any condensate leakage.

3. Relief Port Tube

Refer to Pressure Switch Tubing section for connection

procedure.

CONDENSATE TRAP FIELD DRAIN ATTACHMENT

Refer to Condensate Drain section for recommendations and

procedures.

PRESSURE SWITCH TUBING

One collector box pressure tube {pink label) is factory connected to

the High Pressure Switch for use when furnace is installed in

upflow applications. This tube MUST be disconnected and used

for the condensate trap relief port tube. The other collector box

pressure tube (green labell which was factory connected to the

condensate trap relief port connection MUST be connected to the

High Pressure Switch in DOWNFLOW or HORIZONTAL

RIGHT applications

NOTE: See Fig. 8 or qor tube routing label on main furnace door

to check for proper connections.

I. Disconnect collector box pressure tube (pink label) attached to

High Pressure Switch.

2. Extend collector box pressure tube (_m'een label) which was

previously connected to condensate trap relief port connection

by splicing to small diameter tube (factory-supplied in loose

paa_s bag).

3. Connect collector box pressure tube (green label) to High

Pressure Switch connection labeled COLLECTOR BOX.

4. Extend collector box pressure tube (pink label) which was

previously connected to High Pressure Switch by splicing to

remaining small diameter tube (factory-supplied in loose parts

bag).

5. Route this extended tube (pink label) to condensate trap relief

port connection.

6. Determine appropriate length, cut, and connect tube.

7. Clamp tube to relief port connection.

CONDENSATE TRAP FREEZE PROTECTION

Refer to Condensatu Drain Protection section for recommenda-

tions and procedures.

Step 4_Horizontal Left (Supply-Air Discharge)

Applications

In a horizontal left furnace application, the blower is located to the

right of the burner section, and conditioned air is discharged to the

left.

NOTE: In Canada, installations shall be in accordance with

current NSCNGPIC and/or local codes.

CONDENSATE TRAP LOCATION

The condensate trap must be removed from the factory-installed

blower shelf location and relocated in selected application location

as shown in Fig. 2 or 10.

To relocate condensate trap from the blower shelf to desired

location, perform the following:

I. Remove 3 tubes connected to condensate trap.

2. Remove trap from blower shelf by gently pushing tabs inward

and rotating trap.

3. Install casing hole filler cap (factory-supplied in loose parts

bag) into blower shelf hole where trap wos removed.

4. Install condensate trap into left-hand side ca.sing hole by

inserting tube connection stubs through casing hole and

rotating until tabs snap into locking position.

PLUG

AUXILIARY "J" BOX "__

BOX

DRAIN TUBE

(BLUE AND WHITE STRIPED)

CONDENSATE

TRAP COLLECTOR BOX

TUBE(GREEN)

BOX EXTENSION

DRAIN TUBE

COLLECTOR BOX

EXTENStON TUBE

;ERHOUSING

DRAINTUBE(VIOLET)

DRAIN TUBE (BLUE)

DRAIN TUBE COUPLING \

COLLECTOR BOX TUBE (PINK) "_"

RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR

040, 060, AND 080 HEATING INPUT FURNACES A01029

Fig. 10--Horizontal Left Tube Configuration

5. Fill unused condensate trap casing holes with plastic filler

caps (factory-supplied in loose parts bag).

CONDENSATE TRAP TUBING

NOTE: See Fig. 10 or tube routing label on main furnace door to

check for proper connections.

1. Collector Box Drain Tube

a. Install drain tube coupling (factory-supplied in loose parts

bag) into collector box drain tube tblue label) which was

previously connected to condensate trap.

b. Connect large diatueter drain tube and clamp (factory-

supplied in loose parts bag) to drain tube coupling, extend-

ing collector box drain tube.

c. Route extended tube (blue label) to condensate trap and cut

to appropriate length.

d. Clamp tube to prevent any condensate leakage.

2. Inducer Housing Drain Tube

a. Remove and disc,'u-d LOWER (molded) inducer housing

drain tube which was previously connected to condensate

trap.

b. Use inducer housing drain extension tube (violet label and

factory-supplied in loose parts bag) to connect LOWER

inducer housing drain connection to the condensate trap,

c. Determine appropriate length, cut. and connect tube.

d. Clamp tube to prevent any condensate leakage.

3. Relief Port Tube

a. Extend collector box tube (green label) which was previ-

ously connected to the condensate trap by splicing to small

diameter tube (factory-supplied in loose parts bag).

b. Route extended collector box pressure tube to relief port

connection on the condensate trap.

c. Determine appropriate length, cut, and connect tube.

d. Clanlp tube to prevent any condensate leakage.

CONDENSATE TRAP FIELD DRAIN ATTACHMENTS

Refer to Condensate Drain section for recommendations and

procedures.

PRESSURE SWITCH TUBING

The LOWER collector box pressure tube (pink label) is factory

connected to the High Pressure Switch for use when furnace is

installed in UPFLOW applications. This tube MUST be discon-

nected, extended, rerouted, and then reconnected to the pressure

switch in HORIZONTAL LEFT applications for 060 and 080

heating input furnaces.

NOTE: See Fig. 10 or tube routing label on main furnace door to

check for proper connections.

Modify tube as described below:

1. Disconnect collector box pressure tube (pink label) attached to

High Pressure Switch.

2. Use smaller diameter tube I,factory-supplied in loose parts

bag) to extend tube disconnected in item i.

3. Route extended tube:

a. Behind inducer housing.

b. Between blower shelf and inducer housing.

Determine appropriate length, cut. and reconnect tube to High

Pressure Switch connection labeled COLLECTOR BOX.

INTAKE

30_MIN

A 12-1N. MIN HORIZONTAL PIPE

SECTION IS RECOMMENDED WITH

SHORT (5 TO B FT) VENT SYSTEMS

TO REDUCE EXCESSIVE

CONDENSATE DROPLETS FROM

EXITING THE VENT PIPE.

SHUTOFF

GAS VALVE

3EDIMENT

TRAP

DRAIN

ACCESS OPENING

FOR TRAP

NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE

FURNACE AND CONDENSATE TRAP WHEN A CONDENSING

FURNACE IS INSTALLED ABOVE FINISHED CEILINGS. A9_31

Fig. 11_Attic Location and Working Platform

CONDENSATE TRAP FREEZE PROTECTION

Refer to Condensate Drain Protection section for recommenda-

tions and procedures.

CONSTRUCT A WORKING PLATFORM

Cons_uct working platform where all required furnace clearances

are met. (See Fig. 3 and 113

NOTE: Combustion-air and vent pipes are restricted to a mini-

mum length of 5 ft, (See Table 7.)

NOTE: A 12-in. minimum offset pipe section is recommended

with short (5 to 8 It) vent systems. This recommendation is to

reduce excessive condensate droplets from exiting the vent pipe.

(See Fig. 11 or 35.)

Step 5_Horizontal Right (Supply-Air Discharge)

Applications

In a horizontal right furnace application, the blower is located to

the left of th_ burner section, and conditioned air is discharged to

the right.

NOTE: In Canada. installations shall be in accordance with

current NSCNGPIC Installation Codes and/or local codes.

NOTE: The auxiliary junction box O-Box) MUST be relocated to

opposite side of furnace casing, (See Fig. 12.) See Electrical

Connection section for J-Box relocation.

CONDENSATE TRAP LOCATION

The condensate trap must be removed from the factory-installed

blower shelf location and relocated in selected application location

as shown in Fig. 2 or 12.

To relocate condensate trap from the blower shelf to desired

location, perform the following:

1. Remove 3 tubes connected to condensate trap.

2. Remove trap from blower shelf by gently pushing tabs inward

and rotating trap

3. Install casing hole filler cap (factory-supplied in loose parts

bag) into blower shelf hole where trap was removed.

4. Install condensate trap into left-hand side casing hole by

inserting tube connection stubs through casing hole and

rotating until tabs snap into locking position.

5. Fill unused condensate trap casing holes with plastic filler

caps (facto_-_upplied in loose parts bag).

CONDENSATE TRAP TUBING

NOTE: See Fig. 12 or tube routing label on main furnace door to

check for proper connections.

1. Collector Box Drain Tube:

a. Remove factury-installed plug from LOWER collector box

drain tube (blue and white striped labell.

b. Install removed clamp and plug into UPPER collector box

drain tube (blue label) which was previously connected to

condensate trap.

CAP _/_ COLLECTOR BOX DRAIN TUBE (BLUE)

\// /-- COLLECTOR BOXTUBE (GREEN)

COLLECTOR BOX DRAIN TUBE "--1/

(BLUEAN INV_E:_I I;I)G S//

D =AIN_L_;OI_ET)ox S

EXTENSION TUBE

Fig. 12--Horizontal Right Tube Configuration

A01028

c. Connect LOWER collector box drain tube (blue and white

sniped label) to condensate trap. Tube does not need to be

cut.

d. Clan/p tube to prevent any condensate leakage.

2. Inducer Housing Drain Tube:

a. Remove factory-installed plug from LOWER collector box

drain tube (blue and white striped label).

b. Remove and discard UPPER (molded) inducer housing

drain tube which was previously connected to condensate

trap.

c. Install cap and clamp on UPPER inducer housing drain

connection where molded drain tube was removed.

d. Use inducer housing drain extension tube (violet label and

factory supplied in loose parts bag) to connect LOWER

inducer housing drain connection to condensate trap.

e. Determine appropriate length, cut. and connect tube to

condensate trap.

f. Clamp tube to prevent any condensate leakage.

3. Relief Port Tube:

Refer to Pressure Switch Tubing section for connection

procedure.

CONDENSATE TRAP FIELD DRAIN ATTACHMENT

Reler to Condensate Drain section for recommendations and

procedures.

PRESSURE SWITCH TUBING

One collector box pressure tube (pink label) is factory, connected to

the High Pressure Switch for use when furnace is installed in

UPFLOW applications. This tube MUST be disconnected and used

for the condensate trap relief port tube. The other collector box

pressure tube _,green label) which was factory connected to the

condensate trap relief port connection MUST be connected to the

High Pressure switch in DOWNFLOW or HORIZONTAL RIGHT

applications.

NOTI=: See Fig. 12 or tube routing label on main furnace door to

check for proper connections.

Relocate tubes as described below.

1. Disconnect collector box pressure tube (pink label) attached to

High Pressure Switch.

2. Extend collector box pressure tube (green label) which was

previously connected to condensate trap relief port connection

by splicing to small diameter tube (factory-supplied in loose

parts bag).

3. Connect collector box pressure tube (green label) to High

Pressure Switch connection labeled COLLECTOR BOX.

4. Use remaining smaller diameter tube (factory-supplied in

loose parts bagl to extend collector box pressure tube (pink

label) which was previously connected to High Pressure

Switch. Route this extended tube (pink label) to condensate

trap relief port connection.

5. Determine appropriate length, cut, and connect tube.

6. Clamp tube to relief poll connection.

CONDENSATE TRAP FREEZE PROTECTION

Refer to Condensate Drain Protection section for recommenda-

tions and procedures

CONSTRUCT A WORKING PLATFORM

Construct working platform where all required furnace clearances

are met. (See Fig. 3 and 11.1

NOTE: Combustion-air and vent pipes are restricted to a mini-

mum length of 5 ft. (See Table 7.)

NOTE: A12qn. minmium offset pipe section is recommended

with short _5 tu 8 flJ vent systems. This recommendation is to

reduce excessive condensate droplets from exiting the vent pipe.

(See Fig. 11 or 35.)

LOCATION

Step 1---General

This furnace must

be installed so the electrical components are protected from

water.

not be installed directly on any combustible material other than

wood flooring (refer to SAFETY CONSIDERATIONS),

be located so combustion-air and vent pipe maximum lengths

are not exceeded. Refer to Table 7.

be located where available electric power and gas supplies meet

specifications on the furnace rating plate.

be attached to an air distribution system and be located as close

to the center of the distribution system ms possible. Refer to Air

Ducts section.

be provided with ample space tot servicing and cleaning.

Always comply with minimum t'u'e protection clearances

shown on the furnace clearance to combustible label.

This furnace may be located in a confined space without special

provisions for dilution or ventilation air.

LEVEL (0") I

,o,,o xL ,7o;:;

UPFLOW OR DOWNFLOW HORIZONTAL A02146

r!1 t7, 1

____> Fig. 13_Proper Condensate Drainage

NOTE: For upflow/downflow applications install furnace so that

it is level or pitched forward within l/2-in, for proper furnace

operation. For horizontal applications pitch l/4-in, minimum to

l/2-in, maximum to ensure proper condensate drainage from

secondary, heat exchangers. (See Fig. 13.)

When afurnace is installed so that supply ducts carry air to areas

outside the space containing the furnace, return air must also be

handled by ducts sealed to furnace casing. The ducts terminate

outside the space containing the furnace to ensure there will not be

a negative 13ressure condition will not occur within equipment

room or space.

Do not install furnace on its back. (See Fig. 14.) Safety

control operation will be adversely affected. Never connect

return-air ducts to back of furnace. Failure to follow this

warning could result in fire, personal injury, or death.

BACK

Fig. 14---Prohibit Installation on Back

A93043

32°F MINIMUM INSTALLED

AMBIENT OR FREEZE

PROTECTION REQUIRED

Fig. 15--Freeze Protection

A93058

Do not operate this furnace during construction. If the furnace

is required for temporary heating of buildings or structures

under construction, use clean outside air free of chlorine and

fluorine compounds for combustion and ventilation. These

compounds form acids that corrode the heat exchangers.

These compounds are found in paneling and dry wall adhe-

sives, paints, thinners, masonry cleaning materials, and many

other materials.

Step 2--Furnace Location Relative to Cooling

Equipment

The cooling coil must be installed parallel with or on downstream

side of furnace to avoid condensation in heat exchanger. When

installed parallel with a furnace, dampers or other means used to

control flow of air shall be adequate to prevent chilled air from

entering furnace. If dampers are manually operated, they must be

equipped with a means to prevent operation of either unit unless

the danlper is in full-heat or full-cool position.

18-IN. MINIMUM

TO BURNERS

Fig. 16--Installation in a Garage

Step 3_Hazardous Locations

A93044

2. For each hole, install nut on bolt and then install bolt and nut

in hole. (Install flat washer if desired. )

3. InstMl another nut on other side of furnace base. (Install flat

washer if desired, )

4. Adjust outside nut to provide desired height, and tighten inside

nut to secure ,arrangement.

NOTE: Bottom closure must be used when leveling legs are used.

See Bottom Closme Panel section.

Step 2--Installation in Opflow and Downflow

Applications

NOTE: For downflow applications, this furnace is approved for

use on combustible floonng when special base (available fiom

manufacturer) Part No. KGASBO201ALL is used. Special b_e is

not required when this furnace is installed on manufacturer's Coil

Assembly P,'u't No. CD5 or CK5. or Coil Box Part No. KCAKC is

used.

When the furnace is installed in a residential garage, the

burners and ignition sources must be located at least 18 in.

above the Boor. The furnace must be located or protected to

avoid physical danlage by vehicles. When the furnace is

installed in a public garage, airplane hangar, or other building

having a hazardous atmosphere, the furnace must be installed

in accordance with the NFGC or NSCNGP1C, (See Fig. 16.)

INSTALLATION

Step 1--Leveling Legs (If Desired)

When furnace is used in upflow position with side inlet(s), leveling

legs may be desired. (See Fig. 17.) Install field-supplied,

corrnsion-resistant 5/16-in. machine bolts and nuts.

A96283

Fig. 18---Floor and Plenum Opening Dimensions

1. Determine application being installed from Table 1.

2. Construct hole in floor per dimensions specified in Table 1

and Fig. 18.

3. Construct plenum to dimensions specified in Table 1 and Fig.

18.

4. If downflow subbase (KGASB) is used, install as shown in

Fig. 19. If Coil Assembly Part No. CD5 or CK5 or Coil Box

part No, KCAKC is used, install as shown in Fig. 20.

NOTE: Remove furnace perforated, supply alrduct flanges when

they interfere with mating flanges on coil or downflow subbase, To

remove perforated, supply-air duct flanges, use wide duct pliers.

duct flange tool. or hand seamers to bend fl,'mge back and forth

until it brealcs off. Be careful of sharp edges. (See Fig. 21.!

A89014

Fig. 17--Leveling Legs

NOTE: The maximum length of bolt should not exceed 1-1/2 in.

1. Position furnace on its back. Locate and drill a 5/16-in.

diameter hole in each bottom comer of furnace. (See Fig. 17.)

Holes in bottom closure panel may be used as guide locations.

FURNACE

CASING

WIDTH

17-1/2

24-1/2

TABLE 1--OPENING DIMENSIONS (IN.)

APPLICATION

Upflow Applications

Downflow Applications on Non-Combustible Flooring

Downflow Applications on Combustible Flooring Using

KGASB Subbase