Bryant 340MAV Instruções de Operação

NOTE: Read the entire instruction manual before starting theinstallation.This symbol → indicates a change since the last issue.Index PageSAFETY CONSID

tube (green label) which was factory connected to the condensatetrap relief port connection MUST be connected to the pressureswitch in DOWNFLOW or HOR

F. Construct a Working PlatformConstruct working platform where all required furnace clearancesare met. (See Fig. 3 and 11.)CAUTION: UNIT MAY NOT OPER

B. Condensate Trap TubingNOTE: See Fig. 12 or tube routing label on main furnace door tocheck for proper connections.1. Collector Box Drain Tubea. Rem

E. Condensate Trap Freeze ProtectionRefer to Condensate Drain Protection section for recommenda-tions and procedures.F. Construct a Working PlatformCo

II. FURNACE LOCATION RELATIVE TO COOLINGEQUIPMENTThe cooling coil must be installed parallel with or on downstreamside of furnace to avoid condensatio

1. Determine application being installed from Table 1.2. Construct hole in floor per dimensions specified in Table 1and Fig. 18.3. Construct plenum to

TABLE 1—OPENING DIMENSIONS (IN.)FURNACECASINGWIDTHAPPLICATIONPLENUM OPENING FLOOR OPENINGABCD17-1/2Upflow Applications 16 24-1/8 16-5/8 24-3/4Downflow

WARNING: FIRE HAZARDA failure to follow this warning could result in fire,personal injury, or death.Never connect return-air ducts to the back of the

E. Filter ArrangementCAUTION: FIRE, CARBON MONOXIDE ANDPOISONING HAZARDFailure to follow this warning could result in fire,personal injury, or death.N

WARNING: FIRE OR EXPLOSION HAZARDFailure to follow this warning could result in fire,explosion, personal injury, or death.-Connect gas pipe to furnace

SAFETY CONSIDERATIONSCAUTION: FURNACE RELIABILITY HAZARDImproper installation or misapplication of furnace mayrequire excessive servicing or cause pre

CAUTION: FURNACE MAY NOT OPERATEFailure to follow this caution may result in furnaceoperation stopping and water pipes freezing during coldweather.Fur

lation, service, or maintenance may cause fuse to blow. If fusereplacement is required, use only a fuse of identical size (3 amp)and type. The control

Fig. 30—Wiring DiagramA02271PCBTRANFRSNOTE #11LSPRS(WHEN USED)LGPSFUSED OR CIRCUIT BREAKERDISCONNECT SWITCH (WHEN REQ’D)NOTE #2JBL1L1BLWRTO 115VAC FI

Fig. 31—Control CenterA02100BLWNUETRALSTATUS CODE LEDSEC-2 SEC-1EAC-2 L2FUSE 3-AMP0.5 AMP@24VACHUMTEST/TWIN G Com W Y

WARNING: CARBON MONOXIDE POISONING HAZARDFailure to follow the steps outlined below for each appliance connected to the venting system being placed in

→ Table 5—Direct Vent Termination ClearanceA05009AXBVVVVXXAIR SUPPLY INLETVVENT TERMINALAREA WHERE TERMINAL IS NOT PERMITEDABBBBCDEFJILHKG25--24--65--

CAUTION: MINOR PROPERTY DAMAGEFailure to follow this caution may result in water damagefrom condensate dripping.When combustion-air pipe is installed

EXAMPLE:An 036080 size furnace located in Indianapolis, elevation650 ft above sea level, could be installed in an applicationrequiring 3 elbows and 32

TABLE 7—MAXIMUM ALLOWABLE PIPE LENGTH (FT)ALTITUDE (FT) UNIT SIZETERMINATIONTYPEPIPE DIA(IN.)*NUMBER OF 90° ELBOWS1234560 to 20000240400360402 Pipe or

TABLE 7—MAXIMUM ALLOWABLE PIPE LENGTH (FT) (CONTINUED)ALTITUDE (FT) UNIT SIZETERMINATIONTYPEPIPE DIA(IN.)*NUMBER OF 90° ELBOWS1234564001 to 5000‡02404

Fig. 2—Dimensional DrawingDIMENSIONS (IN.)UNIT SIZE A D E024040 17-1/2 15-7/8 16036040 17-1/2 15-7/8 16024060 17-1/2 15-7/8 16036060 17-1/2 15-7/8 160

COMBUSTION-AIR INTAKE HOUSING PLUGFITTINGThe combustion-air intake plug fitting must be installed inunused combustion-air intake housing. This fitting

CAUTION: UNIT DAMAGE HAZARDFailure to follow this caution may result in unit compo-nent damage.Inducer housing outlet cap must be installed and fullys

d. Termination kit should be positioned where it will not bedamaged by or subjected to foreign objects, such asstones, balls, etc.e. Termination kit s

Fig. 39—Sidewall Termination of 12 in. or MoreA87225MAINTAIN 12 IN.CLEARANCEABOVE HIGHESTANTICIPATED SNOWLEVEL OR GRADE,WHICHEVER ISGREATER.90°V

Fig. 44—Sidewall Termination of 12 in. or Less(Dimension "A" is Touching or 2-In. Maximum Separation)A96129ACOMBUSTION AIRCOMBUSTION AIRVE

3. Loosely assemble concentric vent/air termination compo-nents together using instructions in kit.4. Slide assembled kit with rain shield REMOVED thr

3. Natural gas service pressure must not exceed 0.5 psig(14-in. wc), but must be no less than 0.16 psig (4.5-in. wc).4. Blower access panel must be in

III. PURGE GAS LINESWARNING: FIRE AND EXPLOSION HAZARDFailure to follow this warning could result in a fire,explosion, personal injury, or death.Never

D. Heat Pump ModeWhen installed with a heat pump, the furnace control automaticallychanges the timing sequence to avoid long blower off times duringde

TABLE 9—MODEL 340MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUTFOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY(TABULATED DATA BASED ON 20,00

These furnaces are shipped with the following materials to assist inproper furnace installation. These materials are shipped in the mainblower compart

TABLE 9—MODEL 340MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT (Continued)FOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY(TABULATED DATA BA

TABLE 9—MODEL 340MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT (Continued)FOR USE WITH 040 THROUGH 120 SIZE FURNACES ONLY(TABULATED DATA BA

TABLE 10—MODEL 340MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUTFOR USE WITH 140 SIZE FURNACES ONLY(TABULATED DATA BASED ON 23,000 BTUH PER

TABLE 10—MODEL 340MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT (Continued)FOR USE WITH 140 SIZE FURNACES ONLY(TABULATED DATA BASED ON 23,0

c. Jumper R and W thermostat connections on control tostart furnace operation.d. Turn adjusting screw, counterclockwise (out) to decreasemanifold pres

EXAMPLE: 100,000 BTUH INPUT FURNACE INSTALLED AT4300 FT.Furnace Input Rateat Sea LevelXDerateMultiplierFactor=Furnace Input Rateat InstallationAltitud

D. Set Thermostat Heat AnticipatorWhen using a nonelectronic thermostat, the thermostat heatanticipator must be set to match amp draw of the electrica

CHECKLIST—INSTALLATIONLOAD CALCULATION____________ Heating Load (Btuh)____________ Cooling Load (Btuh)____________ Furnace Model SelectionCOMBUSTION A

© 2005 Bryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231—48—Printed in U.S.A. 340m4013 Catalog No. 5334-021

For accessory installation details, refer to accessory installationinstructions.CODES AND STANDARDSFollow all national and local codes and standards i

A. Condensate Trap Location (Factory-ShippedOrientation)The condensate trap is factory installed in the blower shelf andfactory connected for UPFLOW a

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

E. Condensate Trap Field Drain AttachmentRefer to Condensate Drain section for recommendations andprocedures.F. Pressure Switch TubingThe LOWER collec

b. Install removed clamp and plug into UPPER collectorbox drain tube (blue label) which was connected tocondensate trap.c. Connect LOWER collector box