Bryant 355MAV Betriebsanleitung

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

2. Extend collector box pressure tube (green label) which waspreviously connected to condensate trap relief port connec-tion by splicing to small diam

WARNING: CARBON MONOXIDE POISONINGHAZARDFailure to follow this warning could result in personalinjury or death.Casing hole filler cap must be installe

3. Route extended tube:a. Behind inducer housing.b. Between blower shelf and inducer housing.4. Determine appropriate length, cut, and reconnect tube

WARNING: CARBON MONOXIDE POISONINGHAZARDFailure to follow this warning could result in personalinjury or death.Casing hole filler cap must be installe

NOTE: For upflow/downflow applications install furnace so thatit is level or pitched forward within 1/2-in. for proper furnaceoperation. For horizonta

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

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

CAUTION: UNIT MAY NOT OPERATEFailure to follow this caution may result in intermittentunit operation or performance satisfaction.Do not bend duct flan

CAUTION: UNIT MAY NOT OPERATEFailure to follow this caution may result in intermittentunit operation or performance satisfaction.The entire length of

CAUTION: CUT HAZARDFailure to follow this caution may result in minorpersonal injury.Use care when cutting support rods in filters to protectagainst f

Check Safety Controls...49Check Primary Limit Control...49Check

straps, hangers, etc. Use a minimum of 1 hanger every 6 ft. Jointcompound (pipe dope) should be applied sparingly and only tomale threads of joints. P

WARNING: FIRE HAZARDFailure to follow this warning could result in intermittentoperation or performance satisfaction.Do not connect aluminum wire betw

WARNING: FIRE OR ELECTRICAL SHOCKHAZARDFailure to follow this warning could result in intermittentunit operation or performance satisfaction.If manual

Fig. 31—Unit Wiring DiagramA02291LEGENDJUNCTIONTERMINALCONTROL TERMINALFACTORY POWER WIRING (115VAC)FACTORY CONTROL WIRING (24VAC)FIELD CONTROL WIRING

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

Vent system or vent connectors may need to be resized. For anyother appliances when resizing vent systems or vent connectors,system or connector must

Table 6—Direct Vent Termnination ClearanceA05009AXBVVVVXXAIR SUPPLY INLETVVENT TERMINALAREA WHERE TERMINAL IS NOT PERMITEDABBBBCDEFJILHKG25--24--65--2

WARNING: FIRE AND EXPLOSION HAZARDFailure to follow this warning could result in fire,property damage, personal injury, or death.Solvent cements are c

NOTE: Moisture in combustion-air intake may be result ofimproper termination. Ensure combustion-air intake pipe termina-tion is similar to that shown

TABLE 7—MAXIMUM ALLOWABLE PIPE LENGTH (FT)ALTITUDEUNITSIZETERMINATIONTYPEPIPE DIAMETER(IN.)*NUMBER OF 90° ELBOWS1234560 to 20000420402 Pipe or 2-In.Co

Fig. 2—Dimensional DrawingDIMENSIONS (IN.)UNIT SIZE A D E042040* 24-1/2* 22-7/8* 23*042060 17-1/2 15-7/8 16042080 21 19-3/8 19-1/2060080 21 19-3/8 19-

TABLE 7—MAXIMUM ALLOWABLE PIPE LENGTH (FT) ContinuedALTITUDEUNITSIZETERMINATIONTYPEPIPE DIAMETER(IN.)*NUMBER OF 90° ELBOWS1234566001 to 7000‡0420402 P

6. Clean and dry all surfaces to be joined.7. Check dry fit of pipe and mark insertion depth on pipe.NOTE: It is recommended that all pipes be cut, pr

Fig. 40—Sidewall Termination of 12 in. or MoreA87225MAINTAIN 12 IN.CLEARANCEABOVE HIGHESTANTICIPATED SNOWLEVEL OR GRADE,WHICHEVER ISGREATER.90°V

Fig. 45—Sidewall Termination of 12 in. or Less(Dimension "A" is Touching or 2-In.Maximum Separation)A96129ACOMBUSTION AIRCOMBUSTION AIRVEN

a. Comply with all clearance requirements as stated inTable 6.b. Termination kit should be positioned where vent vaporswill not damage plants/shrubs o

WARNING: PERSONAL INJURY ANDPROPERTY DAMAGE HAZARDFailure to follow this warning could result in propertydamage and personal injury or death.Caution s

CAUTION: UNIT MAY NOT OPERATEFailure to follow this caution may result in intermittentunit operation or performance satisfaction.These furnaces are eq

4. Replace main furnace door and blower access panel.NOTE: If a bypass humidifier is used, setup switch SW1-3 (LowHEAT Rise Adjust) should be in ON po

NOTE: Low-heat-only switch, SW1-2, selects either the low-heat-only operation mode when ON, (see item 2. below) oradaptive heating mode when OFF, in r

115 vac power to the furnace, or by interrupting 24 vacpower at SEC1 or SEC2 to the furnace control CPU (not atW/W1, G, R, etc.).If flame is proved wh

This furnace must be installed with a direct-vent (combustion airand flue) system and a factory accessory termination kit. In adirect-vent system, all

energize the Y/Y2 terminal and switch the outdoor unit tohigh-cooling, as long as the thermostat continues to call forcooling. Subsequent selection is

When the thermostat ″calls for high-cooling″, the blower motorBLWM will operate at high-cooling airflow. When the thermostatis satisfied, the blower m

A00275Fig. 54—Two-Stage Furnace with Single-SpeedAir ConditionerFig. 55—Two-Stage Furnace with Two-SpeedAir ConditionerA00276A00277Fig. 56—Two-Stage F

A00279Fig. 58—Dual Fuel Thermostat with Two-StageFurnace and Single-Speed Heat PumpA00281Fig. 60—Two-Stage Thermostat With Two-StageFurnace and Two-Sp

Notes for Fig. 54-61:1. Heat pump MUST have a high pressure switch for dual fuel applications.2. Refer to outdoor equipment Installation Instructions

AVG. GAS SPECIFIC GRAVITY OF NATURAL GASHEAT VALUE 0.58 0.60 0.62 0.64AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice

AVG. GAS SPECIFIC GRAVITY OF NATURAL GASHEAT VALUE 0.58 0.60 0.62 0.64AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice

e. Turn low-heat adjusting screw (3/32 hex Allen wrench)counterclockwise (out) to decrease input rate or clock-wise (in) to increase input rate.NOTE:

NOTE: Clocking gas input rate MUST always be performed withthe burner box cover INSTALLED.c. Check that gas valve adjustment caps are in place forprop

b. Check derate for altitude if applicable.c. Check all return and supply ducts for excessive restric-tions causing static pressure greater than 0.5-i

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

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

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A94328SERVICE TRAININGPackaged Service Training programs are an excellent way to increase yourknowledge of the equipment discussed in this manual, inc

4. If you touch ungrounded objects (recharge your body withstatic electricity), firmly touch furnace again before touch-ing control or wires.5. Use th

1. Collector Box Drain, Inducer Housing Drain, Relief Port,and Pressure Switch TubesThese tubes should be factory attached to condensate trapand press

3. Install casing hole filler cap (factory-supplied in loose partsbag) into blower shelf hole where trap was removed.WARNING: CARBON MONOXIDE POISONIN

(2.) Condensate Trap Located on Right Side of Casing(a.) Install drain tube coupling (factory-supplied inloose parts bag) into collector box drain tub