Page 2 - Required Notice for Massachusetts Installations; IMPORTANT; 4 as adopted by the Board and
2 Required Notice for Massachusetts Installations IMPORTANT The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows:5.08: Modifications to NFPA--54, Chapter 102) Revise 10.8.3 by adding the following additional requirements: a. For all side wall horizontally vented g...
Page 3 - SAFETY CONSIDERATIONS; CAUTION; SAFE INSTALLATION REQUIREMENTS; WARNING
3 NOTE : Read the entire instruction manual before starting the installation. NOTE : Please retain these instructions with the furnace after installation for future reference. SAFETY CONSIDERATIONS FURNACE RELIABILITY HAZARD Improper installation or misapplication of furnace may require excessive se...
Page 4 - Installation”; Safety Rules; Frozen Water Pipe Hazard; Winter Shutdown
4 furnace, the return air shall also be handled by a duct(s) sealed tothe furnace casing and terminating outside the space containingthe furnace. S A gas--fired furnace for installation in a residential garage mustbe installed as specified in “ Installation” of these instructions. S This furnace is ...
Page 5 - INSTALLATION; CARBON MONOXIDE POISONING HAZARD; Venting and Combustion Air; Installation Positions; never; Location and Clearances; FROZEN AND BURST PIPE HAZARD; Installation Requirements; NOT; Vent and Combustion Air Piping
5 INSTALLATION CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death.This furnace can NOT be common vented or connected to any type B, BW or L vent or vent connector, nor to any portion of a factory--built or masonry chimney. If this furnace is repl...
Page 6 - Combustion & Ventilation Air; Furnace Installation Considerations; Condensate Trap and Drain Lines; Condensate Drain Trap”; Leveling; NOTE; Vent and Combustion Air Piping”; Horizontal Furnace Installation; Do not
6 8. For horizontal installations, line contact is permissible only between lines formed by intersection of back and two sides of furnace jacket, and building joists, studs or framing. 9. Residential garage installations require: S Burners and ignition sources installed at least 18 ″ (457.2mm) above...
Page 8 - Knock Outs; COMBUSTION & VENTILATION; For Single Pipe Installation; “Venting and Combustion Air Check”; Outdoor Combustion Air Method
8 If the furnace is to be suspended from the floor joists in a crawlspace or the rafters in an attic, it is necessary to use steel pipe straps or an angle iron frame to rigidly attach the furnace to preventmovement. These straps should be attached to the furnace bottom side with sheet metal screws a...
Page 9 - This installation NOT approved in Canada
9 Confined Space Installation NOTE : A confined space is defined as an area with less than 50 cubic feet (1.4 3 M)per 1,000 BTUH (2.33 cm 2 /kW) input rating for all gas appliances installed in the area. Requirements 1. Provide the space with sufficient air for proper combustion and ventilation of f...
Page 10 - cm; Standard; and
10 Table 1 Free Area BTUH (kW) Input Rating Minimum Free Area Required for Each Opening or Duct to Outdoors Two Horizontal Ducts BTUH (kW) sq. in./2,000(1 cm 2 /.09) Single Opening BTUH (kW) sq. in./3,000 (1 cm 2 /.135) Two Vertical Ducts or Openings BTUH (kW) sq. in./4,000(1 cm 2 /.18) Round Duct B...
Page 11 - Outdoor; Ventilation Air
11 2. For fan--assisted appliances (such as this furnace), calcu- late using the following equation: 1000 Btu / hr 15 ft 3 ( I fan ) Required Volume fan ² ACH where: I other = all appliances other than fan--assisted input in Btu per hour I fan = fan--assisted appliance input in Btu per hour ACH =air...
Page 12 - VENT AND COMBUSTION AIR; Dual Certified; INLET; Confined Space Installation; MUST; Contaminated Combustion Air
12 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 13 - Combustion Air and Vent Piping Insulation; or
13 Applicable ASTM Standards for Vent Materials Materi- als Sch. 40 Pipe SDR Pipe Cell Core Pipe Fittings Primer Solv. Cement ABS D1527 __ F628 D2468 & D2661 -- -- D2235 PVC D1785 D2241 F891 D2466 & D2665 F656 D2564 CPVC F441 F442 -- -- F438 -- -- F493 ABS to PVC -- -- -- -- -- -- -- -- -- -...
Page 14 - For venting table, see; in; Vent Termination Clearances; “Concentric Termination Kit”
14 Table 3 Pipe Diameter Table Single Piping ONLY 40,000, 50,000, 60,000 & 75,000 Btuh Furnaces 40 ′ (12.2m) & (5) 90 ° elbows with 2 ″ (50.8mm) PVC pipe 80,000 & 100,000 Btuh Furnace 40 ′ (12.2m) & (5) 90 ° elbows with 3 ″ (76.2mm) PVC pipe 125,000 Btuh Furnace 40 ′ (12.2m) & (5...
Page 17 - Condensate Drain Trap; Condensate Drain Trap Freeze Protection
17 Condensate Drain Trap This furnace removes both sensible and latent heat from the products of combustion. Removal of the latent heat results in condensation of the water vapor. The condensate is removed fromthe furnace through the drains in the plastic transition and the vent fitting. The drains ...
Page 18 - Upflow Installations Top Vent; Trap
18 Drain TubeCorrugated 5 / 8 ″″ (15.9mm) ID & Clamps INL E T EXHAUST IN ON OFF VENT Drain TubeBlack Rubber 1 / 2 ″ (12.7mm) ID & Clamps AIR FL O W Street Elbow 1 / 2 ″ (12.7mm) CPVC (Loose parts bag) Casing GrommetBlack Rubber ″ (15.9mm) ID (Loose parts bag) Drain Tee Drain Connector Black ...
Page 19 - Upflow Installations Vent through Left -- Side; Both
19 Plastic CapYellow or black Vent Drain& Clamps INLE T EXH A U S T IN ON OFF VE NT Casing GrommetBlack Rubber 5 / 8 ″ (15.9mm) ID (Loose parts bag) Drain Connector Black PVC 3 / 4 ″ (19.1mm) PVC X 1 / 2 ″ (12.7mm) CPVC(Loose parts bag) Drain TubeCorrugated 5 / 8 ″ (15.9mm) ID & Clamps Coupl...
Page 21 - EXHAUS
21 Elbow Tube Black Rubber 1 / 2 ″″ ID (13 mm) & Clamps (Loose Parts Bag) AI R F LOW OFF ON AIR FL O W 25--24--69 Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC(loose parts bag) Flexible Tubing Connector, 3 / 16 ″ (5 mm) OD (loose parts bag) EXHAUS T Cut Here Drain Tube Bl...
Page 23 - Horizontal Left through Top
23 AIR FLO W OF F ON Plastic CapsYellow or black Vent Drain& Clamps Trap Connection “Clamp ears”Pointed OUT Preassemble &insert into furnace 25--24--70 Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC(loose parts bag) Cap and ClampOpen End Flexible tubing connector 3 / 1...
Page 25 - Horizontal Right through Top
25 OF F ON AIR FLOW 3 / 16 ″ (4.8mm) ID Rub- ber Tube Trap Connection “Clamp ears”Pointed OUT Preassemble &insert into furnace 25--24--70b Single Pressure Switch Detail Dual Pressure Switch Tee Trap White PVC(loose parts bag) WARNINGAdd Cap and Clamp Drain Tube Black Rubber 1 / 2 ″ (12.7mm) ID &...
Page 27 - Drain Line; Connecting Vent and Combustion Air Piping; Combustion Air Pipe Connection (
27 Open Tee Tee Trap CondensateTrap Evaporator Coil Drain Line(Optional) MainDrainLine INLE T E X HAUS T IN ON OFF VENT Representative drawing only, some models may vary in appearance. A07713 Fig. 20 -- Connecting Tee Trap to Condensate Trap and Main Drain Line The tee trap must be connected to the ...
Page 28 - elbow is approved; Joining Pipe and Fittings; Connecting Vent Pipes and Termination; Maintain a minimum of 36; Horizontal Termination
28 Rubber Coupling& Clamps 90 ° Elbow CombustionBlower Vent Fitting& Clamps Vent ExtensionPipe (Side PanelExit) Vent Pipe(Top Panel Exit) Vent Pipe Rotate downward5 ° to 10 ° NOTE: Built--in channel will be angled 5 ° to 10 ° also. SIDE VIEW NOTE: The 90 ° elbow is approved for use inside th...
Page 29 - Above Snow Level or Grade Level; for Sustained Cold Weather
29 Using Exterior Risers 1. Install elbows and pipe to form riser as shown in Fig. 232. Secure vent pipe to wall with galvanized strap or other rust resistant material to restrain pipe from moving. 3. Insulate pipe with Armaflex or equivalent moisture resistant closed cell foam insulation or Fibergl...
Page 30 - OR; Roof Termination; with Exterior Risers
30 CombustionAir Exhaust 12 ″″ (304.8mm) Min. Grade orSnow Level 36” Min 2” (50.8mm) Max 36”Min OR (914.4mm) (914.4mm) A07718 Fig. 26 -- Concentric Vent and Combustion--Air Roof Termination “A” Vent Dimension “A” is touching or 2 ″ (50.8mm) maximum separation. 25--22--02d Vent Combustion Air 1 ″ (25...
Page 31 - Canadian Fuel Gas Code; Concentric Vent Termination; Vertical & Horizontal Termination
31 CONCENTRIC VENT TERMINATION Vent Termination Clearances CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in personal injury, death, or property damage.Inlet and outlet pipes may NOT be vented directly above each other (standard vent terminals). ! WA...
Page 32 - Table 5
32 BPVC Intake/Combustion Air B PVCVent/Exhaust D A 1 1 / 2 ″ C Model A* B C D** KGAVT0801CVT 38 7 / 8 3 4 1 / 2 21 1 / 8 KGAVT0701CVT 33 3 / 8 2 3 1 / 2 16 5 / 8 * = Dimension will change accordingly as dimension D is lengthened or shortened.**= Dimension D may be lengthened to 60 ″ may also be sho...
Page 33 - GAS SUPPLY AND PIPING; Gas Supply Requirements; Table 6; Gas Piping Requirements
33 1 ″ (25.4mm) max. Maintain 12 ″ (304.8mm) clearance above highest anticipated snow levelor grade whichever is greater. CombustionAir Vent 25--22--02 12 ″ (304.8mm) min. Roof Overhang A07736 Fig. 35 -- Concentric Vent and Combustion--Air Side Termination CombustionAir Vent CombustionAir Vent 45 ° ...
Page 34 - Failure to properly install metal gas connector could; Use elbows and 3
34 10. Properly size gas pipe to handle combined appliance load or run gas pipe directly from gas meter or Propane gas regulator. NOTE : Refer to Fig. 37 or Fig. 38 for the general layout at the furnace. The rules listed apply to natural and Propane gas pipeinstallations. NOTE : On the Dual Certifie...
Page 35 - Additional Propane Connection Requirements; Propane Conversion; General Derating Rules; maintained; High Altitude Input Rate =; High Altitude Air Pressure Switch
35 Use elbows and 3 ″ (76 mm) pipe nipple to connect valve to piping when using left side gas pipe entry. *Union may be installed inside the cabinet when necessary because of clearances. Drip Leg and Union, Union* should be outside the cabinet.Manual shut -- off valve MUST be upstream of dripleg, un...
Page 36 - Table 7; Table 8; Orifice; Changing Orifices for High Altitude
36 Table 7 NATURAL GAS MANIFOLD PRESSURE (in wc) 20,000 BTU per burner MEAN ELEVATION ABOVE SEA LEVEL ft(m) HEATING VALUE at ALTITUDE BTU/CU. FT. 0 to 2000 (0 to 609.6) 2001 to 3000 { (609.9 to 914.4) { 3001 to 4000 (914.7 to 1219.2) 4001 to 5000 (1219.5 to 1524) 5001 to 6000 (1524.3 to 1828.8) 6001...
Page 37 - Final Gas Piping Check; ELECTRICAL WIRING; Turn OFF electrical power at fuse box or service panel; Power Supply Wiring
37 Measure from face of ori-fice to the back side of themanifold. 1.11 ″ (28.2mm) 1.21 ″ (30.8mm) A07725 Fig. 39 -- Changing Orifices 5. Reinstall manifold. Ensure burners do NOT bind on new orifices. Final Gas Piping Check 1. The furnace and the equipment shut off valve must be disconnected from th...
Page 38 - Humidifier/Electronic Air Cleaner; Furnace Control Board; Furnace Control Fuse; Tap Select Interface Board
38 For two--stage thermostat installations, the R , W1 and W2 wires from the thermostat connect to the R , W1 and W2 connections on the furnace control board. Set TT SW1 DIP switch #3 to ONposition. During operation, the furnace will shift from Low Heat to High Heat as requested by the thermostat. (...
Page 39 - DUCTWORK AND FILTER; Installation; Connections
39 Dip SwitchSee “ Wiring Diagram ” for switch settings FUSE 115VACHUM DEHUM Diagnostic Light 24 VACHUM EAC A07780 Fig. 41 -- Control Connections DUCTWORK AND FILTER CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death.Do NOT draw return air from i...
Page 40 - Filters; Circulation Air; Filter Installation using Filter Rack; Addition Of Air Conditioning
40 2. Insulate ductwork in indoor unconditioned areas with a minimum of 1 ″ (25.4mm) insulation with indoor type vapor barrier. Filters A filter must be used: Filters are supplied with these furnaces, and additional filters maybe purchased from your distributor.Use either filter type: S Washable, hi...
Page 41 - Combustible Floor Installation; install unit on noncombustible subbase could; Subbase for Combustible Floor; Table 9
41 Note: The three(3) screws in the top panel of the furnace next to theduct flange MUST be removed to provide serviceability of the primary heat exchangers in the downflow installation 1. Position plenum through the floor and set the furnace over the opening in the floor. If necessary, grout around...
Page 42 - CHECKS AND ADJUSTMENTS; Verify the input rate of the furnace.; Startup; User’s Information; Gas Supply Pressure
42 A = 4 1/4” (108mm) Minimumclearance from back of holeto wall or other obstruction. A Hole inFloor M N 25--20--46 L R H K 2 ″ (50.8mm) 2 ″ (50.8mm) 1 ″ (25.4mm) J P Plenum S T A07781 Fig. 47 -- Exploded View of Subbase for Furnace Only 2 1 / 2 ″ (63.5mm) 1 1 / 2 ″ (38.1mm) A09182 Fig. 48 -- Explod...
Page 43 - Natural Gas Input Rating Check; Stable and blue flames. Dust may cause orange tips; MUST NOT; Flames extending directly from burner into heat ex-; touch sides of heat exchanger; Burner Face; Temperature Rise Check
43 1. With gas OFF , connect manometer to manifold pressure tap on the outlet of gas control valve. See Fig. 51Use a manometer with a 0 to 12 inches of water column range. 2. Turn gas ON . Operate the furnace on High Heat by using a jumper wire on the R to W1 & W2 thermostat connections on the f...
Page 44 - Blower Adjustments; Changing Blower Speed; Technical Support Manual”; Continuous- Fan using “G”; See; “User’s Information Manual” and the “Service
44 To check temperature rise,use the following procedure: 1. Place thermometers in supply and return air registers as close to furnace as possible, avoiding direct radiant heat from heatexchangers. 2. Operate furnace on High Heat for 10 minutes with all the registers and duct dampers open by using a...
Page 45 - Wiring
45 ON = 1 1 8 OFF = 0 A09197 Fig. 54 -- Variable Speed Tap Select Interface Board DIP SwitchSee “ Wiring Diagram ” for switch settings FUSE 115VACHUM DEHUM Diagnostic Light 24 VACHUM EAC A09198 Fig. 55 -- Control Board 58H D V
Page 46 - SEQUENCE OF OPERATION & DIAGNOSTICS
46 SEQUENCE OF OPERATION & DIAGNOSTICS The following is the normal operating sequence at factory default settings (SW1 OFF/ON/OFF, SW2 all OFF) NOTE : SW1 DIP switches (G, Y/Y2, W1, W2 thermostat terminals) and DEHUM (1/4” male quick connect terminal) are located on the FCB.SW2 DIP switches and ...
Page 47 - Heating Request with Gas Shut Off:
47 NOTE 5) If a new Heating request arrives while the control is waiting for the Heat Fan Off Delay time to expire, the FCB will wait for theselected Heat Fan Off Delay, and then start a new heating cycle. Heating (W1 & W2) Request (two- stage thermostat operation, SW1 DIP switch #3 must be in O...
Page 48 - WIRING DIAGRAM
Page 49 - Thermostat Wiring Guide; HUM
49 Thermostat Wiring Guide 1. These diagrams are for reference. See thermostat wiring instructions for specific terminal assignments, connections or operation. 2. Humidifier/humidistat is optional and not included with the furnace. 3. Dehumidify feature requires thermostat with DEHUM feature or a se...
Page 50 - and Dehumidify Wiring
50 Y W G R W1 Y/Y2 G R C C OM TWO-STAGE or VS FURNACE CONTROL SINGLE-STAGE AIR CONDITIONER Y C SINGLE-STAGE THERMOSTAT W2 OPTIONAL HUMIDISTAT H-STAT 24V in COM OPTIONAL HUMIDIFIER OPTIONAL DEHUMIDISTAT Connect 1 to Y/Y2 for 1-stage AC/ HP applications 1 2 24V HUM DEHUM Y1 O TSIB NOTE 5 NO CONNECTION...
Carrier 58CTA09010016
User Manual