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...
Page 3 - FURNACE RELIABILITY HAZARD; CARBON MONOXIDE POISONING HAZARD; WARNING; CUT HAZARD; CAUTION
3 TABLE OF CONTENTS PAGE IMPORTANT INFORMATION 2 . . . . . . . . . . . . . . . . . . . . . . . . SAFETY CONSIDERATIONS 3 . . . . . . . . . . . . . . . . . . . . . . . . CODES AND STANDARDS 7 . . . . . . . . . . . . . . . . . . . . . . . . . . ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS 7 . . INTRODUCT...
Page 4 - UNIT SIZE
4 NOTES: 1. Minimum return-air openings at furnace, based on metal duct. If flex duct is used, see flex duct manufacturerís recommendations for equivalent diameters. 2. Minimum return-air opening at furnace: a. For 800 CFM–16-in. (406mm) round or 14 1 / 2 (368 mm)x 12-in. (305 mm) rectangle . b. For...
Page 7 - CODES AND STANDARDS; Manufactured Home Construction and; PRECAUTIONS; INTRODUCTION
7 The furnace shall be installed so that the electrical components areprotected from water.For accessory installation details, refer to applicable installationliterature. CODES AND STANDARDS Follow all national and local codes and standards in addition to these instructions. The installation must co...
Page 8 - APPLICATIONS; General; UPFLOW APPLICATION; NOTE
8 APPLICATIONS General Some assembly and modifications are required for furnaces installed in any of the four applications shown in Fig. 1. Alldrain and pressure tubes are connected as shown in Fig. 7. See appropriate application instructions for these procedures. PROPERTY DAMAGE HAZARD Failure to f...
Page 11 - DOWNFLOW APPLICATIONS; Condensate Trap Location
11 PLUG CAP COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED) INDUCER HOUSING (MOLDED) DRAIN TUBE (VIOLET) COLLECTOR BOX TUBE (PINK) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE EXTENSION CONDENSATE T RAP COLLECTOR BOX TUBE (GREEN) A07276 Fig. 9 -- Downflow Tube Configuration (Left--hand Tra...
Page 13 - Ventilated Combustion Air Applications
13 COMBUSTION - AIR INTAKE VENT MANUAL SHUTOFF GAS VALVE SEDIMENTTRAP CONDENSATETRAP DRAIN ACCESS OPENINGFOR TRAP 30 ″ (762 mm)MIN WORK AREA A 12-IN. (305 mm) MIN HORIZONTAL PIPESECTION IS RECOMMENDED WITHSHORT (5 TO 8 FT / 1.5 TO 2.4 M) VENT SYSTEMS TO REDUCE EXCESSIVECONDENSATE DROPLETS FROMEXITIN...
Page 15 - HORIZONTAL RIGHT
15 HORIZONTAL RIGHT (SUPPLY--AIR DISCHARGE) APPLICATIONS A horizontal right furnace application is where furnace blower is located to the left of combustion and controls section of furnace,and conditioned air is discharged to the right. PROPERTY DAMAGE HAZARD Failure to follow this caution may resul...
Page 16 - LOCATION
16 NOTE : See Fig. 14 or tube routing label on main furnace door to check for proper connections.Relocate tubes as described below. 1. Disconnect collector box pressure tube (pink label) at- tached to pressure switch. 2. Extend collector box pressure tube (green label) which was previously connected...
Page 18 - INSTALLATION
18 1 3 / 4 ″ 1 3 / 4 ″ 1 3/ 4 ″ 1 3/ 4 ″ 5/ 16 ″ 5 / 16 ″ 5/ 16 ″ 5/ 16 ″ (44mm) (8mm) (44mm) (8mm) (8mm) (8mm) (44mm) (44mm) A89014 Fig. 18 -- Leveling Legs INSTALLATION Leveling Legs (If Desired) When furnace is used in upflow position with side inlet(s),leveling legs may be desired. (See Fig. 18....
Page 20 - VENT
20 NOTES: ANGLEIRON OREQUIVALENT (B) (A) ROD LOCATION USING DIMPLELOCATORS(SEE DIMENSIONALDWG FORLOCATIONS) 13 / 16 -IN. (21mm) MAX ALTERNATE SUPPORTLOCATION FROM BACK ALTERNATE SUPPORTLOCATION 4-IN. (102mm) MIN8-IN. (203mm) MAX 3/8 -IN. (10mm) ROD (A) (B) (A) (B) (B) (A) 1. A 1 In. (25mm) clearance...
Page 21 - AIR DUCTS; General Requirements; The Air Systems; Ductwork Acoustical Treatment
21 Table 1 – Opening Dimensions -- In. (mm) FURNACE CASING WIDTH APPLICATION (APPROVED FACTORY SUPPLIED CASED COILS AND COIL BOX: CD5, CKR, CAPVP, CARVP, CAPMP, CARMP, CNPVP, CNRVP, AND KCAKC) PLENUM OPENING FLOOR OPENING A B C D 17 ½ (445) Upflow Applications on Combustible or Noncombustible Floori...
Page 25 - Maximum Capacity of Pipe*
25 Table 3 – 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 (13) 0.622 (158) 175 120 97 82 73 3/4 (19) 0.824 (21) 360 250 200 170 151 1 (25) 1.049 (27) 680 465 375 320 285 1-1/4 (32) 1.380 ...
Page 26 - Table 4 – Electrical Data
26 115-V FIELD-SUPPLIED DISCONNECT SWITCH 115-V SINGLE PHASE AUXILIARY J-BOX FURNACE CONTROL CENTER TWO WIRE 24-V TERMINAL BLOCK THREE-WIRE HEATING ONLY FIVE WIRE NOTE 5 NOTE 1 NOTE 3 THERMOSTAT TERMINALS FIELD-SUPPLIED DISCONNECT CONDENSING UNIT R W2 W C R G Y GND GND GND GND FIELD 24-V WIRING FIEL...
Page 28 - AIR FOR COMBUSTION AND VENTILATION
28 AIR FOR COMBUSTION AND VENTILATION FURNACE RELIABILITY HAZARD Failure to follow this caution may result in premature component failure.This furnace can be vented as either a direct vent (2--pipe) furnace or as an optional ventilated combustion air application. A direct vent system shall be instal...
Page 32 - Fig. 35 -- Ventilated Combustion Air Vent Termination Clearance
32 A08601 Fig. 35 -- Ventilated Combustion Air Vent Termination Clearance 355C A V
Page 34 - COMBUSTION AIR PIPE
34 FURNACE PIPE DIAMETER TRANSITION IN VERTICAL SECTION NOT IN HORIZONTAL SECTION A93034 Fig. 38 -- Combustion Air and Vent Pipe Transition Location and Elbow Configuration UNIT OPERATION HAZARD Failure to follow this caution may result in intermittent unit operation.When installing combustion air a...
Page 36 - VENT PIPE
36 or other materials. Screen the elbow with a wire mesh screen nosmaller than 3/8--inch square. (See Fig. 41.)Crawlspace terminations require the open end of the combustionair intake pipe to point downward. Maintain 3 inches (76 mm) of clearance below the floor joist insulation and 12 inches (305 m...
Page 39 - VENT TERMINATION
39 NOTE : Starting at furnace, slope vent pipe a minimum of 1/4--in. (6 mm) per linear ft. back toward furnace with no sagsbetween hangers. VENT TERMINATION General Combustion--air (direct Vent / 2--pipe system only) and vent pipe must terminate outside structure, either through sidewall or roof.For...
Page 40 - Winter Design Temperature Ambient*
40 Table 6 – Maximum Allowable Exposed Vent Pipe Length with Insulation in Winter Design Temperature Ambient* UNIT SIZE WINTER DESIGN TEMPERATURE MAXIMUM PIPE DIAMETER IN. (MM) INSULATION THICKNESS† 0 3/8 1/2 3/4 1 060 20° F / --- 7° C 2 (51) 28 (8.5) 50 (15.2) 56 (17.1) 66 (20.1) 70 (21.3) 0° F / -...
Page 43 - TERMINATION SYSTEM; CONDENSATE DRAIN; Condensate Drain Protection
43 Table 8 – Vent Termination Kit for Direct Vent/2-Pipe System DIRECT VENT (2-PIPE) TERMINATION KIT TERMINATION SYSTEM DIAM. OF COMBUSTION AIR AND VENT PIPES --- IN (mm) 2-in. (51 mm) Concentric Vent Kit Single Penetration of Wall or Roof 1, 1 --- 1/2, 2, or 2 --- 1/2 (25, 38, 51, 64 mm) 3-in. (76 ...
Page 44 - CHECK; Step 1 — General; Step 2 — Select Setup Switch Positions
44 1. Fold heat tape in half and wrap on itself 3 times.2. Locate heat tape between sides of condensate trap back. (See Fig. 46.) 3. Use wire ties to secure heat tape in place. Wire ties can be positioned in notches of condensate trap sides. (See Fig. 46.) 4. Wrap field drain pipe with remaining hea...
Page 45 - Replace main furnace door and blower access panel.; Prime Condensate Trap with Water; Failure to follow this caution may result in intermittent unit
45 2. Locate setup switch SW4 on furnace control. (See Fig. 33.) 3. See Table 5 for setup switch description. (See Fig. 40 and Fig. 49.) 4. Replace main furnace door and blower access panel. Prime Condensate Trap with Water UNIT OPERATION HAZARD Failure to follow this caution may result in intermitt...
Page 47 - Table 9 – Furnace Setup Switch Description; SETUP SWITCH; housing drain connection.
47 A99118 Fig. 50 -- Inducer Housing Drain Tube A01050 Fig. 51 -- Filling Condensate Trap Table 9 – Furnace Setup Switch Description SETUP SWITCH NO. SWITCH NAME NORMAL POSITION DESCRIPTION OF USE SW1 --- 1 Status Code Recovery OFF Turn ON to retrieve up to 7 stored status codes for troubleshooting ...
Page 48 - Step 3 — Sequence of Operation
48 Purge Gas Lines If not previously done, purge the lines after all connections have been made and check for leaks. FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in a fire, explosion, personal injury, or death.Never purge a gas line into a combustion chamber. Never test for ...
Page 53 - Pump
53 A06682 Fig. 56 -- Step Modulating Furnace with Single--Speed Heat Pump A06683 Fig. 57 -- Dual Fuel thermostat with Step--Modulating Furnace and Two--Speed Heat Pump A06684 Fig. 58 -- Two--Stage Thermostat with Step Modulating Furnace and Two--Speed Air Conditioner A06685 Fig. 59 -- Single--Stage ...
Page 54 - Step 4 — Adjustments; Set Gas Input Rate
54 NOTE : Reference Fig. 52--59: 1. Heat pump MUST have a high pressure switch for dual fuel applications. 2. Refer to outdoor equipment Installation Instructions for additional information and setup procedure. 3. Select the “ZONE” position on the two--speed heat pump control. 4. Outdoor Air Tempera...
Page 55 - BURNER
55 d. Jumper R and W/W1 thermostat connections on control to start furnace. e. Turn medium--heat adjusting screw counterclockwise (out) to decrease manifold pressure or clockwise (in) toincrease manifold pressure. NOTE : DO NOT set medium--heat manifold pressure less than 1.3-- in. wc or more than 1...
Page 56 - Table 10 – Orifice Size* and Manifold Pressures for Gas Input Rate
56 Table 10 – Orifice Size* and Manifold Pressures for Gas Input Rate (Tabulated Data Based on 20,000 BTUH High Heat / 13,000 Btuh Med--Heat / 8,000 Btuh Low--Heat per Burner, Derated 2% / 1000 Ft. (304.8M) Above Sea Level) AVG. GAS SPECIFIC GRAVITY OF NATURAL GAS HEAT VALUE 0.58 0.60 0.62 0.64 AT A...
Page 58 - UNIT DAMAGE HAZARD; Failure to follow this caution may result in component; connections to terminate call for heat.; ALTITUDE
58 UNIT DAMAGE HAZARD Failure to follow this caution may result in component damage.DO NOT redrill orifices. Improper drilling (burrs, out--of--round holes, etc.) can cause excessive burner noise and misdirection of burner flames. (See Fig. 61.) CAUTION ! h. Jumper R to W/W1. i. Let furnace run for ...
Page 60 - CHECKLIST
60 the R--W/W1 circuit. Accurate amp draw measurements can beobtained only at the thermostat subbase terminals R and W.The thermostat and anticipator should NOT be in the circuit whilemeasuring current. If thermostat has no subbase, the thermostat must be disconnected from R and W/W1 wires during cu...
Page 61 - CHECKLIST — INSTALLATION
61 CHECKLIST — INSTALLATION LOAD CALCULATION ________________ Heating Load (Btuh) Condensate Drain ________________ Cooling Load (Btuh) ________________ Unit Level or Pitched Forward ________________ Furnace Model Selection ________________ Internal Tubing Connections Free of Kinks and Traps COMBUST...