Bryant 376CAV, Installation, Start-Up, And Operating Instructions Manual

Page 1: ...words DANGER WARNING and CAUTION and NOTE These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING sig...

Page 2: ...D E VENT CONN SHIP WT LB 024050 14 3 16 12 9 16 12 11 16 4 123 036050 14 3 16 12 9 16 12 11 16 4 128 024070 14 3 16 12 9 16 12 11 16 4 130 036070 14 3 16 12 9 16 12 11 16 4 139 036096 17 1 2 15 7 8 1...

Page 3: ...nace the control and the person at the same electro static potential 1 Disconnect all power to the furnace DO NOT TOUCH THE CONTROL OR ANY WIRE CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR BODY...

Page 4: ...y downflow subbase which is available from your distributor or branch when required II LOCATION RELATIVE TO COOLING EQUIPMENT The cooling coil must be installed parallel with or on the downstream side...

Page 5: ...d they must be of the same cross sectional area as the free area of the openings to which they connect The minimum dimension of ducts must not be less than 3 in See Fig 4 AIR DUCTS This section covers...

Page 6: ...SQ IN PER 1000 BTUH IN DOOR OR WALL 12 MAX 1 SQ IN PER 1000 BTUH IN DOOR OR WALL 12 MAX INTERIOR HEATED SPACE Minimum opening size is 100 sq in with minimum dimensions of 3 in Minimum of 3 in when typ...

Page 7: ...APPLICATION PLENUM OPENING FLOOR OPENING A B C D 14 3 16 Non Combustible Flooring 12 11 16 19 13 3 8 19 5 8 Combustible Flooring Using KGASB Subbase 11 13 16 19 13 7 16 20 3 8 Combustible Flooring wit...

Page 8: ...VIII FILTER ARRANGEMENT WARNING Never operate unit without filter access door removed Failure to follow this warning could result in fire personal injury or death Fig 8 Typical Attic Installation A97...

Page 9: ...If a flexible connector is required or al lowed by the authority having jurisdiction black iron pipe shall be installed at the gas valve and extend a minimum of 2 in outside the furnace casing WARNIN...

Page 10: ...pple into the lower end of the tee The capped nipple should extend below the level of the gas controls See Fig 13 Piping should be pressure tested in accordance with local and national plumbing and ga...

Page 11: ...vided for 24 v humidifier connection See Fig 16 HUM terminal is energized with 24 v 0 5 amp maximum after inducer pressure switch closes WARNING DO NOT connect furnace control HUM terminal to HUM humi...

Page 12: ...motor comes up to speed the pressure switch contacts close to begin a 15 sec prepurge period b Igniter warm up At the end of the prepurge period the igniter is energized for a 17 sec igniter warm up...

Page 13: ...pump the furnace control automatically changes the timing sequence to avoid long blower off time during demand defrost cycles When the W Y or W Y G thermostat inputs are received at the same time the...

Page 14: ...C CONDUCTOR ON PCB FIELD WIRING TERMINAL FIELD GROUND EQUIPMENT GROUND FIELD SPLICE PLUG RECEPTACLE L1 L2 L1 BLWR HI LO TO 115VAC FIELD DISCONNECT NOTE 4 EQUIPMENT GROUND SPARE 2 HEAT SPARE 1 COOL NOT...

Page 15: ...Obtain average yearly gas specific gravity from local gas supplier 3 Verify furnace model Table 7 can only be used for model 376CAV Furnaces 4 Find installation altitude in Table 7 NOTE For Canada al...

Page 16: ...3 2 7 43 2 8 43 2 9 43 3 0 43 3 1 1025 43 2 6 43 2 6 43 2 7 43 2 8 43 2 9 ALTITUDE RANGE FT AVG GAS HEAT VALUE BTU CU FT SPECIFIC GRAVITY OF NATURAL GAS 0 58 0 60 0 62 0 64 0 66 Orifice no Manifold Pr...

Page 17: ...43 2 4 43 2 5 43 2 5 43 2 6 850 43 2 2 43 2 2 43 2 3 43 2 4 43 2 5 875 43 2 0 43 2 1 43 2 2 43 2 3 43 2 3 ALTITUDE RANGE FT AVG GAS HEAT VALUE AT ALTITUDE BTU CU FT SPECIFIC GRAVITY OF NATURAL GAS 0 5...

Page 18: ...re Orifice No Manifold Pressure Orifice No Manifold Pressure Orifice No Manifold Pressure U S A Only 9001 to 10 000 575 43 3 0 43 3 1 43 3 2 43 3 3 43 3 4 600 43 2 7 43 2 8 43 2 9 43 3 0 43 3 1 625 43...

Page 19: ...or varying the heating cycle length NOTE When using an electronic thermostat set cycle rate for 3 cycles per hr V CHECK SAFETY CONTROLS The flame sensor gas valve and pressure switch were all checked...

Page 20: ...ts when used a Turn off 115 v power to furnace b Remove blower access door c Disconnect red motor lead at blower speed selector Mark terminal for proper re connection d Replace blower access door e Tu...

Page 21: ...pward Slope _________________ Joints Secure _________________ See Vent Table Instructions CHECKLIST START UP _________________ Gas Input Rate Set Within 2 percent of Rating Plate _________________ Tem...

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Page 24: ...o based formats and materials All include video and or slides plus companion book Classroom Service Training plus hands on the products in our labs can mean increased confidence that really pays divid...