Bryant BRYANT 355M-40-4 manual

NOTE: Read the entire instruction manual before starting the installation. This symbol → indicates a change since the last issue. Index Page DIMENSIONAL DRAWING ........................................................2 SAFETY CONSIDERATIONS .....................................................3 Clearances to Combustibles..........................[...]

Fig. 2—Dimensional Drawing DIMENSIONS (IN.) UNIT SIZE A D E 042040* 24-1/2* 22-7/8* 23* 042060 17-1/2 15-7/8 16 042080 21 19-3/8 19-1/2 060080 21 19-3/8 19-1/2 060100 21 19-3/8 19-1/2 060120 24-1/2 22-7/8 23 * These dimensions reflect the wider casing for the Trophy (96.6 percent AFUE) furnace. A93023 17 5 ⁄ 16 " 24 1 ⁄ 2 " 27 9 ⁄[...]

SAFETY CONSIDERATIONS Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified person- nel should install, repair, or service heating equipment. Untrained personnel can perform basic maintenance functions such as clean- ing and replacing air filters. All other operations must be pe[...]

recharges your body with static electricity (for example; DO NOT move or shuffle your feet, DO NOT touch un- grounded objects, etc.). 4. If you touch ungrounded objects (recharge your body with static electricity), firmly touch furnace again before touch- ing control or wires. 5. Use this procedure for installed and uninstalled (un- grounded) furna[...]

and also by a color label on each tube. These tubes are identified as follows: collector box drain tube (blue label), inducer housing drain tube (violet label or molded), relief port tube (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 [...]

D. Condensate Trap Tubing (Alternate Upflow Orientation) NOTE: See Fig. 6 or tube routing label on main furnace door to confirm location of these tubes. 1. 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. 2. Induc[...]

NOTE: See Fig. 5 or 6 or tube routing label on main furnace door to check for proper connections. H. Condensate Trap Freeze Protection Refer to Condensate Drain Protection section for recommenda- tions and procedures. III. DOWNFLOW APPLICATIONS A downflow furnace application is where furnace blower is located above combustion and controls section o[...]

b. Remove and discard UPPER (molded) inducer housing drain tube which was previously connected to conden- sate 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 [...]

b. Route extended collector box pressure tube to relief port connection on condensate trap. c. Determine appropriate length, cut, and connect tube. d. Clamp tube to prevent any condensate leakage. C. Condensate Trap Field Drain Attachment Refer to Condensate Drain section for recommendations and procedures. D. Pressure Switch Tubing The LOWER colle[...]

B. Condensate Trap Tubing NOTE: See Fig. 11 or tube routing label on main furnace door to check for proper connections. 1. Collector Box Drain Tube a. Remove factory-installed plug from LOWER collector box drain tube (blue and white striped label). b. Install removed clamp and plug into UPPER collector box drain tube (blue label) which was previous[...]

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. E. Condensate Trap Freeze Protection Refer to Condensate Drain Protection section for recommenda- tions and procedures. F. Construct a Working Platform Construct working[...]

Provide ample space for servicing and cleaning. Always comply with minimum fire protection clearances shown on unit’s clear- ance to combustibles label. (See Fig. 3.) Locate furnace where available electric power and gas supplies meet specifications on furnace rating plate. II. LOW-FIRE ONLY INSTALLATION This 355MAV furnace can be installed to op[...]

IV. HAZARDOUS LOCATIONS INSTALLATION I. LEVELING LEGS (IF DESIRED) When furnace is used in upflow position with side inlet(s), leveling legs may be desired. (See Fig. 12.) Install field-supplied, corrosion-resistant 5/16-in. machine bolts and nuts. NOTE: The maximum length of bolt should not exceed 1-1/2 in. 1. Position furnace on its back. Locate [...]

TABLE 1—OPENING DIMENSIONS (IN.) FURNACE CASING WIDTH APPLICATION PLENUM OPENING FLOOR OPENING AB C D 17-1/2 Upflow Applications 16 24-1/8 16-5/8 24-3/4 Downflow Applications on Non-Combustible Flooring 15-7/8 19 16-1/2 19-5/8 Downflow Applications on Combustible Flooring Using KGASB Subbase Furnace with or without CD5 or CK5 Coil Assembly or KCA[...]

III. INSTALLATION IN HORIZONTAL APPLICATIONS These furnaces can be installed horizontally in either horizontal left or right discharge position. In a crawlspace, furnace can either be hung from floor joist or installed on suitable blocks or pad. Furnace can be suspended from each corner by hanger bolts and angle iron supports. (See Fig. 17.) Cut ha[...]

IV. FILTER ARRANGEMENT CAUTION: Never operate unit without a filter or with blower access panel removed. Factory-supplied washable framed filters are shipped in blower compartment. Determine location for filter and relocate filter retaining wire if necessary. See Table 2 to determine correct filter size for desired filter location. Table 2 indicate[...]

VI. GAS PIPING Gas piping must be installed in accordance with national and local codes. Refer to current edition of NFGC. Canadian installations must be made in accordance with NSCNGPIC and all authorities having jurisdiction. Gas supply line should be a separate line running directly from meter to furnace, if possible. Refer to Table 3 for recomm[...]

NOTE: Proper polarity must be maintained for 115-v wiring. If polarity is incorrect, control center fault code indicator light will flash rapidly and furnace will NOT operate. WARNING: The cabinet MUST have an uninterrupted or unbroken ground according to NEC ANSI/NFPA 70-1996 and Canadian Electrical Code CSA C22.1 or local codes to minimize person[...]

Fig. 24—Wiring Diagram A96276 FRS LS ALS FSE GV RED C M P BLU BRN GRN HI GRN NOTE #3 3 RED WHT WHT PL1 PL7 12 1 0 4 6 12 ORN BRN YEL GRN BLK WHT 3 PL9 HSI 12 1.5 AMP EAC1 EAC2 BLK WHT 2 1 PL4 BLK 12 3 7 8 456 YEL ORN BRN GRN BLU BRN RED BLK WHT WHT RED 10 11 B2 RED 9 BLK WHT 5 PL3 5BLU 4YEL 3VIO 2ORN 1RED RED ORN VIO YEL BLU WHT BLK RED ORN VIO Y[...]

NOTE: Use AWG No. 18 color-coded copper thermostat wire for lengths up to 100 ft. For wire lengths over 100 ft, use AWG No. 16 wire. NOTE: For 2-speed applications, refer to Sequence of Operation section. III. ACCESSORIES 1. Electronic Air Cleaner (EAC) The control center EAC terminals are energized with 115v (1.5-amp maximum) during blower operati[...]

(5.) Insert EAC stripped leads into control center EAC terminals by depressing terminal’s arm with a screwdriver or finger. (See Fig. 26.) (6.) Reinstall control box to furnace blower shelf using 2 screws removed earlier. 2. Humidifier (HUM) Screw terminals (HUM and C OM ) are provided for 24-v humidifier connection. (See Fig. 24.) HUM terminal i[...]

CAUTION: Combustion air must not be taken from inside structure because that air is frequently contami- nated by halogens, which include fluorides, chlorides, bromides, and iodides. These elements are found in aerosols, detergents, bleaches, cleaning solvents, salts, air fresheners, adhesives, paint, and other household prod- ucts. Locate combustio[...]

EXAMPLE: An 042080 size furnace located in Indianapolis, elevation 650 ft above sea level, could be installed in an application requiring 3 elbows and 17 ft of vent pipe, along with 5 elbows and 16 ft of combustion-air pipe. Table 6 indicates this application would allow a 1-1/2-in. diameter vent pipe, but require a 2-in. diameter combustion air pi[...]

TABLE 6—MAXIMUM ALLOWABLE PIPE LENGTH (FT) ALTITUDE UNIT SIZE TERMINATION TYPE PIPE DIAMETER (IN.)* NUMBER OF 90° ELBOWS 1 23456 0 to 2000 042040 2 Pipe or 2-In. Concentric 1-1/2 50 45 40 35 30 25 2 7 0 7 07 07 07 07 0 042060 2 Pipe or 2-In. Concentric 1-1/2 50 45 40 35 30 25 2 7 0 7 07 07 07 07 0 042080 060080 2 Pipe or 2-In. Concentric 1-1/2 3[...]

TABLE 6—MAXIMUM ALLOWABLE PIPE LENGTH (FT) Continued ALTITUDE UNIT SIZE TERMINATION TYPE PIPE DIAMETER (IN.)* NUMBER OF 90° ELBOWS 1234 5 6 6001 to 7000‡ 042040 2 Pipe or 2-In. Concentric 1-1/2 35 30 25 20 15 10 2 7 07 06 86 7 6 6 6 4 042060 2 Pipe or 2-In. Concentric 1-1/2 35 30 25 20 15 10 2 7 07 06 86 7 6 6 6 4 042080 060080 2 Pipe or 2-In.[...]

COMBUSTION-AIR INTAKE HOUSING PLUG FITTING The combustion-air intake plug fitting must be installed in unused combustion-air intake housing. This fitting must be attached by using RTV sealant, or by drilling a 1/8-in. hole in fitting, using hole in intake housing as a guide. Install a field-supplied No. 6 or No. 8 sheet metal screw. NOTE: DO NOT OV[...]

Fig. 34—Sidewall Termination of 12 in. or More A87225 MAINTAIN 12 IN.  CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE, WHICHEVER IS GREATER. 90 ° VENT 12 IN. SEPARATION BETWEEN BOTTOM OF COMBUSTION AIR AND BOTTOM OF VENT BRACKET COMBUSTION-AIR 12 ″ MINIMUM OVERHANG OR ROOF Fig. 32—Concentric Vent and Combu[...]

contaminants, and has less visible vent vapors. (See Fig. 31 or 32.) Sidewall termination may require sealing or shielding of building surfaces with a corrosive resistance material due to corrosive combustion products of vent system. A. Extended Exposed Sidewall Pipes Sidewall combustion-air and vent pipe terminations may be extended beyond area sh[...]

NOTE: Do not allow insulation or other materials to accumulate inside of pipe assembly when installing it through hole. Roof terminations —Locate assembly through roof to ap- propriate height as shown in Fig. 32. Sidewall terminations —Locate assembly through sidewall with rain shield positioned no more than 1-in. from wall as shown in Fig. 33.[...]

Fig. 39—Sidewall Termination of 12 in. or Less (Dimension "A" is Touching or 2-In. Maximum Separation) A96129 A COMBUSTION AIR COMBUSTION AIR VENT Fig. 37—Concentric Vent and Combustion-Air Roof Termination (Dimension "A" is Touching or 2-In. Maximum Separation) A93056 COMBUSTION AIR VENT VENT A Fig. 40—Sidewall Termina[...]

SEQUENCE OF OPERATION CAUTION: Furnace control must be grounded for proper operation, or control will lock out. Control is grounded through green wire routed to gas valve and burner box screw. Using schematic diagram (see Fig. 24), follow sequence of operation through different modes. This furnace has a new control system. Read and follow wiring di[...]

The blower reduces its speed to low-heat RPM. The blower and EAC remain operating 90, 135, 180, or 225 sec (depending on blower off time selection). The furnace is factory set for a 90-sec blower off delay. 10. Post purge —The inducer continues operating for 15 sec after gas valve is de-energized. III. HEATING MODE—TWO STAGE The control center [...]

2. Humidifier —The HUM terminal is energized after inducer prepurge period is completed. 3. Ignitor warm up —After prepurge period, HSI is energized for 17 sec. 4. Ignition sequence —After HSI warm-up period is com- pleted, the gas valve is energized, permitting gas flow to the burners where it is ignited. After 5 sec, the HSI is de-energized[...]

VIII. COMPONENT TEST All components are functionally operated except gas valve with component test feature. This feature helps diagnose a system problem in case of a component failure. NOTE: Setup switch SW-1 MUST be in OFF position or Fault Code 22 (setup error) will occur. NOTE: NO thermostat signal may be present at control center, and all blowe[...]

1. Remove main furnace door and blower access panel. 2. Locate CF setup switches on control center. (See Fig. 25.) 3. Determine desired continuous fan airflow. 4. Use Table 9 or wiring schematic to determine proper setup position of CF switches. (See Fig. 24 and 45.) NOTE: The CF switches are factory set to provide continuous fan airflow equal to l[...]

TABLE 10—SETUP SWITCH DESCRIPTION SETUP SWITCH NO. NORMAL POSITION DESCRIPTION OF USE SW-1 (FLT) OFF Turn switch to ON for fault history display. No thermostat signal can be present for fault history display. SW-2 (LOW) OFF Turn switch to ON to lock furnace in low-heat mode only. SW-3 (BPH) OFF Turn switch to ON when a bypass humidifier is used. [...]

IV. PURGE GAS LINES If not previously done, purge the lines after all connections have been made and check for leaks. WARNING: Never purge a gas line into a combustion chamber. Never use matches, candles, flame, or other sources of ignition for the purpose of checking leakage. Use a soap-and-water solution to check for leakage. Failure to follow th[...]

TABLE 12—MODEL 355MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT (TABULATED DATA BASED ON 20,000 BTUH HIGH HEAT/13,000 BTUH LOW HEAT PER BURNER DERATED 2% FOR EACH 1000 FT ABOVE SEA LEVEL) ALTITUDE RANGE (FT) AVG GAS HEAT VALUE AT ALTITUDE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 0.66 Orifice No. Manifold Pressure[...]

TABLE 12—MODEL 355MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT Continued (TABULATED DATA BASED ON 20,000 BTUH HIGH HEAT/13,000 BTUH LOW HEAT PER BURNER DERATED 2% FOR EACH 1000 FT ABOVE SEA LEVEL) ALTITUDE RANGE (FT) AVG GAS HEAT VALUE AT ALTITUDE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 0.66 Orifice No. Manifol[...]

TABLE 12—MODEL 355MAV ORIFICE SIZE AND MANIFOLD PRESSURE FOR CORRECT INPUT Continued (TABULATED DATA BASED ON 20,000 BTUH HIGH HEAT/13,000 BTUH LOW HEAT PER BURNER DERATED 2% FOR EACH 1000 FT ABOVE SEA LEVEL) ALTITUDE RANGE (FT) AVG GAS HEAT VALUE AT ALTITUDE (BTU/CU FT) SPECIFIC GRAVITY OF NATURAL GAS 0.58 0.60 0.62 0.64 0.66 Orifice No. Manifol[...]

At altitudes above 2000 ft, this furnace has been ap- proved for a 2 percent derate for each 1000 ft above sea level. See Table 13 for derate multiplier factor and example. EXAMPLE: 100,000 Btuh input furnace installed at 4300 ft. Furnace Input Rate at Sea Level X Derate Multiplier Factor = Furnace Input Rate at Installation Altitude 100,000 X 0.91[...]

B. Set Temperature Rise CAUTION: Temperature rise must be within limits specified on unit rating plate. Recommended operation is at midpoint of rise or above. Failure to follow this caution may result in condensing or overheating the heat ex- changers. Furnace must operate within range of temperature rise specified on the unit rating plate. Determi[...]

II. CHECK PRESSURE SWITCHES This control proves operation of the draft inducer. Check switch operation as follows: 1. Turn off 115-v power to furnace. 2. Remove control access door and disconnect inducer motor 12-pin wire harness at inducer motor. 3. Turn on 115-v power to furnace. 4. Set thermostat to call for heat. When pressure switches are func[...]

CHECKLIST—INSTALLATION LOAD CALCULATION ____________ Heating Load (Btuh) ____________ Cooling Load (Btuh) ____________ Furnace Model Selection COMBUSTION AND VENT PIPING Termination Location ________ Roof or Sidewall ________ Termination Kit — 2 Pipe or Concentric ________ Combustion-Air Pipe Length ________ Combustion-Air Pipe Elbow Quantity _[...]