Bryant 312AAV/JAV - Manuals

Page 3 - SAFETY CONSIDERATIONS; WARNING; INTRODUCTION

3 SAFETY CONSIDERATIONS FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in dangerous operation, serious injury, death, or property damage.Improper installation, adjustment, alteration, service, maintenance, or use could cause carbon...

Page 4 - NOTE; : Remove all shipping brackets and materials before

4 gas. This furnace is not approved for installation in mobilehomes, recreational vehicles, or outdoors.These furnaces shall not be installed directly on carpeting, tile, orany other combustible material other than wood flooring. For downflow installations, a factory accessory floor base must be use...

Page 5 - CODES AND STANDARDS; Follow all national and local codes and standards in addition; PRECAUTIONS PROCEDURE; FURNACE RELIABILITY HAZARD; CAUTION

5 60 80 / 27 C / 16 C A06745 Fig. 3 -- Return Air Temperature 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 gas supplier, local building, heating,plumbing, and other codes. In abse...

Page 6 - LOCATION

6 THE BLOWER IS LOCATED TO THE RIGHT OF THE BURNER SECTION, AND AIR CONDITIONED AIR IS DISCHARGED TO THE LEFT. THE BLOWER IS LOCATED BELOW THE BURNER SECTION, AND CONDITIONED AIR IS DISCHARGED UPWARD. THE BLOWER IS LOCATED ABOVE THE BURNER SECTION, AND CONDITIONED AIR IS DISCHARGED DOWNWARD THE BLOW...

Page 7 - FIRE, INJURY OR DEATH HAZARD; MINIMUM TO BURNERS; FIRE HAZARD; PROPERTY DAMAGE HAZARD; LOCATION RELATIVE TO COOLING EQUIPMENT; AIR FOR COMBUSTION AND

7 FIRE, INJURY OR DEATH HAZARD Failure to follow this warning could result in personal injury, death, and/or property damage.When the furnace is installed in a residential garage, the burners and ignition sources must be located at least 18 inches (457 mm) above the floor. The furnace must be locate...

Page 8 - EXAMPLES: Determining Free Area; FURNACE

8 FURNACE CORROSION HAZARD Failure to follow this caution may result in furnace damage.Air for combustion must not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide. These elements can corrode heat exchangers and shorten furnace life. Air contaminants are fo...

Page 10 - National Fuel Gas Code ANSI; Volume; ACH; other; Volume; ACH; fan; INSTALLATION

10 Table 3 – Minimum Space Volumes for 100% Combustion, Ventilation, and Dilution from Indoors ACH OTHER THAN FAN --- ASSISTED TOTAL (1,000s BTUH GAS INPUT RATE) FAN --- ASSISTED TOTAL (1,000s BTUH GAS INPUT RATE) 30 40 50 44 66 88 110 132 154 Space Volume (ft.3) 0.60 1,050 1,400 1,750 1,100 1,650 2...

Page 12 - Platform Furnace Support; the ground underneath furnace must be level and the furnace set; Bottom Return Air Inlet; Tilt or raise furnace and remove 2 screws holding bottom; Side Return Air Inlet; side return air inlet(s) are used without a bottom return air inlet.; Combustible Floor

12 Platform Furnace Support Construct working platform at location where all required furnace clearances are met. (See Fig. 2 and 17.) For furnaces with 1--in.(25 mm) clearance requirement on side, set furnace on non--combustible blocks, bricks or angle iron. For crawlspaceinstallations, if the furn...

Page 15 - M IN

15 30-IN . (762mm) MIN WORK AREA 6 ″ M IN * TYPE-B VENT 17 3 / 4 ″ 22 ″ SHEET MET AL SEDIMENT TRAP EQUIPMENT MANU AL SHUT -OFF GAS VA LV E LINE CONT A CT ONL Y PERMISSIBLE BETWEEN LINES FORMED BY INTERSECTIONS OF THE T OP AND TW O SIDES OF THE FURNA CE JA CKET AND BUILDING JOISTS , STUDS , OR FRAMIN...

Page 19 - Table 6 – Maximum Capacity of Pipe; FURNACE DAMAGE HAZARD; UNION

19 Gas piping must be installed in accordance with national andlocal codes. Refer to current edition of NFGC in the U.S. Table 6 – Maximum Capacity of Pipe NOMINAL IRON PIPE SIZE IN. (MM) INTERNAL DIA. IN. (MM) LENGTH OF PIPE --- FT. (M) 10 (3.0) 20 (6.0) 30 (9.1) 40 (12.1) 50 (15.2) 1/2 (12.7) 0.62...

Page 20 - ELECTRICAL CONNECTIONS; ELECTRICAL SHOCK AND FIRE HAZARD; FURNACE MAY NOT OPERATE HAZARD

20 115-VOLT FIELD- SUPPLIED FUSED DISCONNECT JUNCTION BOX CONTROL BOX 24-VOLT TERMINAL BLOCK THREE-WIRE HEATING- ONLY FIVE WIRE NOTE 2 NOTE 1 1-STAGE THERMOSTAT TERMINALS FIELD-SUPPLIED FUSED DISCONNECT CONDENSING UNIT FURNACE COM R W C Y R G GND GND FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VO...

Page 23 - Conditioner

23 See notes 2, 5, 8, 10, 11 and 12 on the page following these figures A03179 Fig. 26 -- Two--Stage Furnace with Two--Speed Air Conditioner See notes 1, 2, 4, 6, 7, 9, 10, 11, and 15 on the page following these figures A03180 Fig. 27 -- Two--Stage Furnace with Single--Speed Heat Pump (Dual Fuel) Se...

Page 25 - : DO NOT connect furnace control HUM terminal to; VENTING; The furnace shall be connected to a listed factory built chimney

25 ACCESSORIES 1. Electronic Air Cleaner (EAC) Connect an accessory Electronic Air Cleaner (if used) us- ing 1/4--in female quick connect terminals to the two male1/4--in quick--connect terminals on the control board marked EAC--1 and EAC--2. The terminals are rated for115VAC, 1.0 amps maximum and a...

Page 26 - CARBON MONOXIDE POISONING HAZARD; GENERAL VENTING REQUIREMENTS

26 CARBON MONOXIDE POISONING HAZARD Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death. The following steps shall be followed for each appliance connected to the venting system b...

Page 29 - ADDITIONAL VENTING REQUIREMENTS; on the page following

29 2. Adjust the gas input rate per the installation instructions. Low gas input rate causes low vent gas temperatures, caus- ing condensation and corrosion in the furnace and/or vent-ing system. Derating is permitted only for altitudes above2000 ft 3. Adjust the air temperature rise to the midpoint...

Page 31 - following these figures; following these figures; then Up

31 SEE NOTES: 1,2,4,7,8,9 on the page following these figures A03213 Fig. 41 -- Horizontal Left Application -- Vent Elbow Left SEE NOTES: 1,2,4,5,7,8,9 on the page following these figures A03214 Fig. 42 -- Horizontal Left Application -- Vent Elbow Right then Up SEE NOTES: 1,2,4,7,8,9 on the page fol...

Page 32 - complete application details. See Table 18 for accessory listing.

32 SEE NOTES: 1,2,4,5,7,8,9 A02068 Fig. 47 -- Horizontal Right Application--Vent Elbow Left VENTING NOTES FOR FIG. 35 -- 47 1. For common vent, vent connector sizing and vent material: United States--use the NFGC.2. Immediately increase to 5--in. or 6--in. (127 or 152 mm) vent connector outside furn...

Page 33 - CHECK; Step 1 — General

33 CUT HAZARD Failure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care and wear appropriate protective clothing, safety glasses and gloves when handling parts and servicing furnaces. CAUTION ! NOTE : Vent connector length for connector si...

Page 34 - Step 3 — Adjustments

34 Table 10 – 2--Stage Furnace Setup Switch Description SETUP SWITCH NO. SWITCH NAME NORMAL POSITION DESCRIPTION OF USE SW --- 1 Adaptive Heat Mode OFF When OFF, allows 2 --- stage operation with a single stage thermostat. Turn ON when using 2 stage thermostat to allow Low Heat operation when R to W...

Page 37 - FURNACE OVERHEATING HAZARD

37 Table 12 – Gas Rate (cu ft. /hr) SECONDS FOR 1 REVOLUTION SIZE OF TEST DIAL SECONDS FOR 1 REVOLUTION SIZE OF TEST DIAL 1 C U FT. 2 C U FT. 5 C U FT. 1 C U FT. 2 C U FT. 5 C U FT. 10 360 720 1800 50 72 144 360 11 327 655 1636 51 71 141 355 12 300 600 1500 52 69 138 346 13 277 555 1385 53 68 136 34...

Page 38 - COLOR

38 If clocked rate does not match required input from Step 1,increase manifold pressure to increase input or decrease manifold pressure to decrease input. Repeat steps b through e until correcthigh heat input is achieved. Re--install high--heat regulator seal cap on gas valve. 8. Set high heat tempe...

Page 39 - Table 14 – 2--Stage Furnace Blower OFF delay Setup Switch; DESIRED HEATING MODE; THERMOSTAT SUBBASE; CONTROL TERMINALS; Step 4 — Check Safety Controls; Step 5 — Checklist

39 Table 14 – 2--Stage Furnace Blower OFF delay Setup Switch DESIRED HEATING MODE BLOWER OFF DELAY (SEC.) SETUP SWITCH SW --- 2 SETUP SWITCH SW --- 3 90 OFF OFF 120 OFF ON 150 ON OFF 180 ON ON R Y W G 10 TURNS THERMOSTAT SUBBASE TERMINALS WITH THERMOSTAT REMOVED (ANITICIPATOR, CLOCK, ETC., MUST BE O...

Page 44 - Step 1 — Introduction

44 SERVICE AND MAINTENANCE PROCEDURES FIRE, PERSONAL INJURY AND UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury, death and/or property damage.The ability to properly perform maintenance on this equipment requires certain knowledge, mechanical skills, tools, and equi...

Page 45 - SERVICE; Step 2 — Care and Maintenance; FIRE OR EXPLOSION HAZARD; CARBON MONOXIDE POISONING AND FIRE; CUT HAZARD

45 CONTINUOUS OFF - Check for 115VAC at L1 and L2, and 24VAC at SEC-1 and SEC-2. CONTINUOUS ON - Control has 24VAC power. RAPID FLASHING - Line voltage (115VAC) polarity reversed. If twinned, refer to twinning kit instructions. LED CODE EACH OF THE FOLLOWING STATUS CODES IS A TWO DIGIT NUMBER WITH T...

Page 48 - UNIT DAMAGE HAZARD

48 UNIT DAMAGE HAZARD Failure to follow this caution may result in shortened heat exchanger life.Heating fan speed(s) MUST be adjusted to provide proper air temperature rise as specified on the rating plate. Recommended operation is at the midpoint of the rise range or slightly above. Refer to “SET ...

Page 49 - Step 3 — Sequence of Operation

49 striking with ball--peen hammer. TIGHTNESS IS VERYIMPORTANT. NOTE : The materials needed in item 9 can usually be purchased at local hardware stores. (1.) Attach variable--speed, reversible drill to the end of spring cable (end opposite brush). (2.) Insert brush end of cable into the outlet openi...

Page 50 - a. Inducer Prepurge Period

50 control CPU, transformer TRAN, inducer motor IDM, blowermotor BLWM, hot--surface igniter HSI, and gas valve GV. 1. Two--Stage Heating (Adaptive mode) with Single-- Stage Thermostat (See Fig. 23 or 32 for thermostat connections) NOTE : The low--heat only switch (LHT) selects either the low--heat o...

Page 52 - tinue as long as there is a call for cooling.; Continuous Blower Mode; Step 4 — Wiring Diagrams

52 from COOL to HI HEAT for a maximum of 10 minutesbefore reverting back to COOL speed. If there is still a demand for dehumidification after 20 minutes, the fur-nace control CPU will drop the blower speed back to HIHEAT speed. This alternating 10--minute cycle will con- tinue as long as there is a ...

Page 55 - Table 18 – Accessory List; DESCRIPTION

55 Table 18 – Accessory List DESCRIPTION PART NUMBER NOTES Media Filter Cabinet FILCABXX0016 Filter cabinet 16” (406 mm) for 4” (102 mm) wide filter FILCABXX0020 Filter cabinet 20” (508 mm) for 4” (102 mm) wide filter FILCABXX0024 Filter cabinet 24” (610 mm) for 4” (102 mm) wide filter Cartridge Med...

Page 56 - PARTS REPLACEMENT INFORMATION GUIDE; Consumer Relations Department

56 PARTS REPLACEMENT INFORMATION GUIDE CASING GROUP Outer doorBlower doorTop filler plateBottom filler plateBottom enclosure ELECTRICAL GROUP Control bracketJunction boxLimit switch(es)Circuit boardDoor switchTransformerWiring harness 115vWiring harness 24v BLOWER GROUP Blower housingBlower cutoffBl...