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PG9MXA
NOTE:
Read the entire instruction manual before starting
the installation.
NOTE: This furnace can be installed as a
or (1-pipe) non-direct vent
Special Venting Requirements for Installations in Canada
Installation in Canada must conform to the requirements of CSA
B149 code. Vent systems must be composed of pipe, fittings,
cements, and primers listed to ULC S636.
fittings and accessory concentric vent termination kits and
accessory external drain trap have been certified to ULC S636 for
use with those IPEX PVC vent components which have been
certified to this standard. In Canada, the primer and cement must
be of the same manufacturer as the vent system - - IPEX System
636, PVC/CPVC Primer, Purple Violet for Flue Gas Venting and
IPEX System 636, PVC Cement for Flue Gas Venting, rated
Class IIA, 65 deg C. must be used with this venting system - - do
not mix primers and cements from one manufacturer with a vent
system from a different manufacturer. Follow the manufacturer's
instructions in the use of primer and cement and never use primer
or cement beyond its expiration date.
The safe operation, as defined by ULC S636, of the vent system
is based on following these installation instructions, the vent
system manufacturer's installation instructions, and proper use of
primer and cement. All fire stop and roof flashing used with this
system must be UL listed material. Acceptability under Canadian
standard CSA B149 is dependent upon full compliance with all
installation instructions. Under this standard, it is recommended
that the vent system be checked once a year by qualified service
personnel.
The authority having jurisdiction (gas inspection authority,
municipal building department, fire department, etc) should be
consulted before installation to determine the need to obtain a
permit.
Installation, Start- -up and
Operating Instructions
(2-pipe) direct vent
condensing gas furnace.
The special vent
DELUXE 4---WAY MULTIPOISE 2---STAGE
CONDENSING GAS FURNACE
SIZES 060---120, SERIES A
Consignes spéciales pour l'installation de ventillation au Canada
L'installation faite au Canada doit se conformer aux exigences du
code CSA B149. Ce systême de ventillation doit se composer de
tuyaux, raccords, ciments et apprêts conformes au ULC S636. La
tuyauterie de ventillation des gaz, ses accessoires, le terminal
concentrique mural ainsi que l'ensemble du drain de condensat
extérieur ont été certifiés ULCS 636 pour l'application des
composantes IPEX PVC qui sont certifiées à ce standard. Au
Canada l'apprêt et le ciment doivent être du même manufacturier
que le systême de ventillation - - IPEX Système 636, Apprêt
PVC/CPVC. Mauve Violette pour conduit en évacuation des gaz
et IPEX Système 636, ciment pour PVC pour conduit en
évacuation des gaz, évalué CLASSE IIA, 65 deg. C. doit ëtre
utilisé avec ce systèeme d'évacuation - - ne pas mélanger l'apprêt
et le ciment d'un manufacturier avec le systême de ventillation
d'un autre manufacturier. Bien suivre les indications du
manufacturier lors de l'utilisation de l'apprêt et du ciment et ne
pas utiliser ceux- -ci si la date d'expiration est atteinte.
L'opération sécuritaire, tel que définit par ULC S636, du système
de ventilation est basé sur les instructions d'installation suivantes,
ainsi que l'usage approprié de l'apprêt et ciment. Tout arrët feu et
solin de toit utilisés avec ce système doivent être des matériaux
listés UL. L'acceptation du standard Canadien CSA B419 est
directement relié à l'installation conforme aux instructions ci- -
haut mentionnées. Le standard Canadien recommande l'
inspection par un personel qualifié et ce, une fois par année.
Some Provinces may require the combustion air system to be
ULC- -S636 certified.
1
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Table of Contents
Related Manuals for Payne PG9MXA
Summary of Contents for Payne PG9MXA
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Page 1: Operating Instructions
PG9MXA DELUXE 4---WAY MULTIPOISE 2---STAGE CONDENSING GAS FURNACE SIZES 060---120, SERIES A Installation, Start- -up and Operating Instructions NOTE: Read the entire instruction manual before starting the installation. (2-pipe) direct vent NOTE: This furnace can be installed as a or (1-pipe) non-direct vent condensing gas furnace. - Page 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 10 2) Revise 10.8.3 by adding the following additional requirements: a. For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet (2.1 M) above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:...
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Page 3: Table Of Contents
TABLE OF CONTENTS WARNING SAFETY CONSIDERATIONS ......CODES AND STANDARDS ......FIRE, EXPLOSION, ELECTRICAL SHOCK AND Safety . - Page 4 It also prevents the entrainment of box is used. The design of the PG9MXA furnace is not CSA drywall dust into combustion air, which can cause fouling and certified for installation in mobile homes, recreational vehicles, or plugging of furnace components.
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Page 5: Codes And Standards
For accessory installation detail, refer to the accessory installation S CANADA: NSCNGPIC. For a copy, contact Standard Sales, instruction. CSA International, 178 Rexdale Boulevard, Etobicoke (Toronto), Ontario, M9W 1R3, Canada. NOTE: Remove all shipping materials before operating furnace. Step 3 - - Combustion and Ventilation Air Installer Packet includes: S US: Section 9.3 of the NFGC, Air for Combustion Installation, Startup, and Operating Instructions... - Page 6 A08323 Fig. 3 - - Dimensional Drawing...
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Page 7: Electrostatic Discharge (Esd) Precautions
INSTALLATION This forced air furnace is equipped for use with natural gas at altitudes 0 - 10,000 ft (0 - 3,050m), except 140 size furnaces are only approved for altitudes 0 - 7,000 ft. (0 - 2,135m). An accessory kit, supplied by the manufacturer, shall be used to convert to propane gas use or may be required for some natural gas applications. This furnace is for indoor installation in a building constructed on site. -
Page 8: Introduction
INTRODUCTION CONDENSATE TRAP TUBING (FACTORY-SHIPPED ORIENTATION) The model PG9MXA 4-way multipoise, Gas-Fired, Category IV, NOTE: See Fig.6 or tube routing label on main furnace door to condensing furnace is available in model sizes ranging from input confirm location of these tubes. - Page 9 A93026 Fig. 5 - - Condensate Trap NOTE: Failure to use CPVC elbows may allow drain to kink WARNING and prevent draining. k. Connect larger diameter drain tube and clamp (factory CARBON MONOXIDE POISONING HAZARD supplied in loose parts bag) to condensate trap and clamp securely.
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Page 10: Downflow Applications
PLUG PLUG COLLECTOR BOX DRAIN TUBE (BLUE & WHITE STRIPED) COLLECTOR BOX DRAIN TUBE (BLUE COLLECTOR BOX TUBE (PINK) & WHITE STRIPED) COLLECTOR BOX TUBE (PINK) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX INDUCER HOUSING TUBE (GREEN) (MOLDED) DRAIN TUBE (BEHIND COLLECTOR BOX DRAIN TUBE) COLLECTOR BOX... - Page 11 COLLECTOR BOX DRAIN TUBE (BLUE) PLUG PLUG COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX EXTENSION TUBE COLLECTOR BOX COLLECTOR BOX TUBE (PINK) TUBE (PINK) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX COLLECTOR BOX DRAIN TUBE (BLUE EXTENSION TUBE &...
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Page 12: Horizontal Left (Supply-Air Discharge) Applications
b. Remove and discard UPPER (molded) inducer housing Step 4 - - Horizontal Left (Supply-Air Discharge) drain tube which was previously connected to Applications condensate trap. In a horizontal left furnace application, the blower is located to c. Install cap and clamp on UPPER inducer housing drain the right of the burner section, and conditioned air is discharged connection where molded drain tube was removed. -
Page 13: Horizontal Right (Supply-Air Discharge) Applications
PLUG COLLECTOR BOX AUXILIARY "J" BOX DRAIN TUBE (BLUE AND WHITE STRIPED) CONDENSATE COLLECTOR BOX TRAP TUBE (GREEN) INDUCER HOUSING COLLECTOR DRAIN TUBE (VIOLET) BOX EXTENSION COLLECTOR BOX DRAIN TUBE DRAIN TUBE (BLUE) COLLECTOR BOX EXTENSION TUBE DRAIN TUBE COUPLING COLLECTOR BOX TUBE (PINK) RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR 040, 060, AND 080 HEATING INPUT FURNACES... - Page 14 COMBUSTION - AIR INTAKE VENT A 12-IN. (305 mm) MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT / 1.5 TO 2.4 M) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM EXITING THE VENT PIPE. ″ (762 mm)MIN WORK AREA ″...
- Page 15 A 3-IN.(76mm) MINIMUM CLEARANCE VENT TO COMBUSTION-AIR INTAKE IS REQUIRED. COMBUSTION AIR INTAKE A 12-IN. (305mm) MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT (5 TO 8 FT / 1.5 TO 2.4M) VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM EXITING THE VENT PIPE.
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Page 16: Location
COLLECTOR BOX DRAIN TUBE (BLUE) COLLECTOR BOX TUBE (GREEN) COLLECTOR BOX EXTENSION TUBE PLUG COLLECTOR BOX TUBE (PINK) AUXILARY “J” BOX RELOCATED HERE CONDENSATE TRAP COLLECTOR BOX DRAIN TUBE (BLUE AND WHITE STRIPED) INDUCER HOUSING DRAIN TUBE (VIOLET) COLLECTOR BOX EXTENSION TUBE A01028 Fig. -
Page 17: Furnace Location Relative To Cooling Equipment
CAUTION FRONT UNIT DAMAGE HAZARD This gas furnace may be used for construction heat provided that: - -The furnace is permanently installed with all electrical wiring, piping, air filters, venting and ducting installed according to these installation instructions. A return air duct is provided, sealed to the furnace casing, and terminated outside the space containing the furnace. -
Page 18: Air For Combustion And Ventilation
S Chlorine based swimming pool chemicals S Water softening chemicals S De-icing salts or chemicals S Carbon tetrachloride S Halogen type refrigerants S Cleaning solvents (such as perchloroethylene) S Printing inks, paint removers, varnishes, etc. S Hydrochloric acid S Cements and glues S Antistatic fabric softeners for clothes dryers S Masonry acid washing materials 18-IN. - Page 19 Table 1 – Minimum Free Area Required for Each Combustion Air Opening or Duct to Outdoors TWO HORIZONTAL DUCTS TWO OPENINGS OR SINGLE DUCT OR OPENING (1 SQ. IN./2,000 BTUH) VERTICAL DUCTS (1 SQ. IN./3,000 BTUH) (1,100 SQ. (1 SQ. IN./4,000 BTUH) (734 SQ.
- Page 20 1 SQ IN. CIRCULATING AIR PER 4000 VENT THROUGH ROOF DUCTS DUCTS BTUH* O UTDOORS 12" MAX (305mm) 12 ″ MAX 12 ″ (305mm) (305mm) 1 SQ IN. VENT 1 SQ IN. PER 2000 THR OUGH PER 1000 BTUH* R OOF BTUH* IN DOOR 1 SQ IN .
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Page 21: Installation
NOTE: In determining the free area of an opening, the blocking 5/ 16 ″ (8mm) effect of the louvers, grilles, and screens must be considered. If (8mm) the free area of a louver or grille design is unknown, it may be 5/ 16 ″... -
Page 22: Air Ducts
CAUTION FURNACE (OR COIL CASING WHEN USED) UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation. COMBUSTIBLE The entire length of furnace MUST be supported when FLOORING furnace is used in a horizontal position to ensure proper draining. -
Page 23: Ductwork Acoustical Treatment
Table 3 – Opening Dimensions --- In. (mm) FURNAC PLENUM OPENING FLOOR OPENING APPLICATION CASING WIDTH Upflow Applications 16 (406) 24-1/8 (613) 16-5/8 (422) 24-3/4 (629) Downflow Applications on Non-Combustible Flooring 15-7/8 (403) 19 (483) 16-1/2 (419) 19-5/8 (498) Downflow Applications on Combustible Flooring Using KGASB Subbase 17-1/2 Furnace with or without CAP , CAR or CNPV, CNRV Coil Assembly or KCAKC 15-1/8 (384) - Page 24 COMBUSTION-AIR INTAKE (NON-DIRECT VENT/1-PIPE COMBUSTION-AIR PIPE APPLICATION) (DIRECT VENT/2-PIPE APPLICATION,ALL SIZES) VENT 3-IN. (76 mm) MINIMUM CLEARANCE TO COMBUSTION-AIR INTAKE IS REQUIRED (NON-DIRECT VENT/1-PIPE 8 -IN. (10 mm) ROD APPLICATION,) ANGLE ″ (146 mm) IRON OR EQUIVALENT ALTERNATE SUPPORT LOCATION 4-IN. (102 mm) MIN 8-IN.
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Page 25: Filter Arrangement
Upflow Furnaces WASHABLE The return-air duct must be connected to bottom, sides (left or FILTER right), or a combination of bottom and side(s) of main furnace casing. Bypass humidifier may be attached into unused side return air portion of the furnace casing. DO NOT connect any FILTER portion of return-air duct to back of furnace casing. -
Page 26: Bottom Closure Panel
Table 5 – Maximum Capacity of Pipe* LENGTH OF PIPE --- FT (M) NOMINAL INTERN IRON PIPE SIZE DIA. (3.0) (6.0) (9.1) (12.1) (15.2) IN. (MM) IN. (MM) 0.622 1/2 (12.7) (158) 0.824 3/4 (19.0) (20.9) 1.049 1 (25.4) (26.6) 1.380 1---1/4 1400... - Page 27 connected. In Canada, refer to current edition of NSCNGPIC. If the pressure exceeds 0.5 psig (14-in. wc), gas supply pipe must SUPPLY be disconnected from the furnace and capped before pressure test. MANUAL If test pressure is equal to or less than 0.5 psig (14-in. wc), turn SHUTOFF off electric shutoff switch located on furnace gas valve and VALVE...
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Page 28: Electrical Connections
COMBUSTION-AIR PIPE GROMMET UNUSED 1-3/4 -IN. DIAMETER GAS COMBUSTION CONN. HOLE -AIR PIPE GAS LINE GAS LINE ENTRY HOLE FILLER PLUG VENT PIPE GAS LINE GROMMET VENT PIPE GROMMET NOTE: PIPE GROMMETS AND ENTRY HOLE FILLER PLUGS ARE INCLUDED IN FACTORY-SUPPLIED LOOSE PARTS BAG A05057 A05057... - Page 29 FIELD 24-V WIRING FIELD 115-, 208/230-, 460-V WIRING FACTORY 24-V WIRING FACTORY 115-V WIRING 1-STAGE THERMOSTAT TERMINALS FIVE FIELD-SUPPLIED WIRE FUSED DISCONNECT TWO-WIRE 208/230- OR HEATING- 460-V ONLY THREE PHASE 208/230-V W/W1 SINGLE Y/Y2 PHASE 115-V FUSED JUNCTION DISCONNECT SWITCH CONTROL CONDENSING (WHEN REQUIRED)
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Page 30: Removal Of Existing Furnaces From Common Vent Systems
FACTORY INSTALLED ELECTRIC LOCATION DISCONNECT SWITCH COPPER WIRE ONLY POWER ENTRY HOLE FILLER PLUG (FACTORY- UNUSED 7/8-IN. (22 mm) SUPPLIED LOOSE PARTS BAG) DIAMETER POWER ENTRY HOLES ALUMINUM WIRE A05113 A93033 Factory Installed J-Box Location Fig. 34 - - Fig. 33 - - Disconnect Switch and Furnace 24-V WIRING Use a separate, fused branch electrical circuit containing a properly sized fuse or circuit breaker for this furnace. -
Page 31: Combustion Air And Vent Pipe Systems
NFGC or NSCNGPIC. The following steps shall be followed for each appliance The PG9MXA can be vented as either a direct vent or as a connected to the venting system being placed into operation, non-direct vent application. A direct vent system shall be... - Page 32 A08343 Fig. 36 - - Wiring Diagram...
- Page 33 Table 7 – Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials ASTM SPECIFICATION SOLVENT CEMENT AND (MARKED ON MATERIAL PIPE FITTINGS DESCRIPTION PRIMERS MATERIAL) D1527 Pipe — — Schedule---40 D1785 Pipe — — Schedule---40 D2235 For ABS — — Solvent Cement For ABS D2241...
- Page 34 SET UP SWITCHES LOW HEAT ONLY TWINNING AND/OR ACRDJ - AIR CONDITIONING AND BLOWER COMPONENT TEST RELAY DISABLE JUMPER OFF-DELAY TERMINAL 24-V THERMOSTAT TERMINALS HUMIDIFIER TERMINAL TEST / TWIN (24 VAC 0.5 AMPS MAX) TRANSFORMER 24 VAC CONNECTIONS PL1-LOW VOLTAGE FUSE 3-AMP MAIN HARNESS CONNECTOR 3-AMP FUSE...
- Page 35 A05009 Table 8 – Direct Vent Termination Clearance...
- Page 36 A05013 Table 9 – Other than Direct Vent Termination Clearance...
- Page 37 Table 10 – Maximum Allowable Exposed Vent Pipe Length ---FT (M) With and Without Insulation in Winter Design Temperature Ambient* MAX PIPE WINTER DESIGN WITHOUT WITH 3/8–IN. (10 mm) OR UNIT SIZE DIAMETER --- TEMPERATURE °F (_C) INSULATION THICKER INSULATION† IN (mm) 20 (---7) 2 (51)
- Page 38 NOTE: Select 1 vent pipe connection and NOTE: Select 1 vent pipe connection and FIELD-SUPPLIED 1 combustion-air pipe connection. 1 combustion-air pipe connection. 2-IN. (51 mm) DIA. FIELD-SUPPLIED PVC 90° ELBOW 2-IN. (51 mm) DIA. FLOW PVC PIPE COMBUSTION- COMBUSTION- VENT VENT VENT...
- Page 39 Table 13 – MAXIMUM ALLOWABLE PIPE LENGTH ---FT (M) NON-DIRECT DIRECT VENT (2-PIPE) ONLY VENT (1-PIPE) NUMBER OF 90° ELBOWS ALTITUDE --- UNIT SIZE ONLY FT (M) (BTUH) TERMINATION PIPE DIA PIPE DIA (IN.)* TYPE (IN.)* 1-1/2 (38) 1-1/2 (38) (6.1) (4.6) (3.0)
- Page 40 Table 13—Maximum Allowable Pipe Length --- Ft (M) (Continued) NON-DIRECT DIRECT VENT (2-PIPE) ONLY VENT (1-PIPE) NUMBER OF 90° ELBOWS ALTITUDE --- UNIT SIZE ONLY (BTUH) FT (M) TERMINATION PIPE DIA PIPE DIA (IN.)* TYPE (IN.)* 1-1/2 (38) 1-1/2 (38) (4.6) (3.0) (1.5)
- Page 41 Table 13—Maximum Allowable Pipe Length --- Ft (M) (Continued) NON-DIRECT ALTITUDE --- UNIT SIZE VENT (1-PIPE) DIRECT VENT (2-PIPE) ONLY NUMBER OF 90° ELBOWS FT (M) (BTUH) ONLY TERMINATION PIPE DIA PIPE DIA (IN.)* TYPE (IN.)* 1-1/2 (38) 1-1/2 (38) (3.7) (2.1) 2 Pipe or 2-in...
- Page 42 3. Deburr inside and outside of pipe. CAUTION 4. Chamfer outside edge of pipe for better distribution of primer and cement. UNIT DAMAGE HAZARD 5. Clean and dry all surfaces to be joined. Failure to follow this caution may result in unit component 6.
- Page 43 EXAMPLE: An 080- -12 size furnace located in Indianapolis, elevation 650 ft (198 M) above sea level, could be installed as either a FURNACE direct vent/2-pipe system that requires 3 elbows and 32 ft (9.7 M) of vent pipe, along with 5 elbows and 34 ft (10.3 M) of combustion-air pipe OR a non-direct vent/1-pipe system that requires 3 elbows and 32 ft (9.7 M) vent pipe.
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Page 44: Vent Termination
12 ″ MIN (305mm) 12 ″ MIN (305mm) VENT PIPE VENT PIPE COMBUSTION-AIR PIPE COMBUSTION-AIR PIPE HORIZONTAL TO ROOF HORIZONTAL TO SIDEWALL COMBUSTION-AIR PIPE VENT PIPE COMBUSTION-AIR PIPE 12 ″ MIN (304.8mm) 12 ″ MIN VENT PIPE (304.8mm) VERTICAL TO ROOF VERTICAL TO SIDEWALL NOTE: A 12-in. - Page 45 Roof T e rmination (Preferred) At least 36 in. (914mm) Concentric Vent and Combustion Air Roof Termination (preferred) Vertical separation between combustion At least air and vent 36 in. Maintain 12 (305mm) 8 3/4 in. (222mm)for 3 in. (76mm)kit 18 in. maximum (457mm) min.
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Page 46: Condensate Drain
2---1/2, 3 or 4 (64, 76, 102 mm) Combustion air and vent pipes MUST terminate outside structure. (Direct Vent/2-Pipe System ONLY) - - When 2 or more PG9MXA A factory accessory termination kit must be installed as shown in furnaces are vented near each other, 2 vent terminations may be Table 14. -
Page 47: Start-Up, Adjustments, And Safety Check
CONDENSATE TRAP OPEN STAND PIPE FOR WIRE TIE(S) A/C OR HUMIDIFIER DRAIN HEAT TAPE TO OPEN (3 WRAPS MINIMUM) DRAIN A94054 A93036 Fig. 46 - - Example of Field Drain Attachment Fig. 47 - - Condensate Trap Heat Tape Step 1 - - General WARNING The furnace must have a 115-v power supply properly connected and grounded. -
Page 48: Prime Condensate Trap With Water
A99118 Fig. 48 - - Inducer Housing Drain Cap CAUTION A99119 Fig. 49 - - Filling Condensate Trap FIRE HAZARD Step 3 - - Purge Gas Lines Failure to follow this caution may result in intermittent unit operation. After all connections have been made, purge the gas lines and check for leaks. - Page 49 TWO-STAGE HEATING WITH SINGLE-STAGE Ignition-Lockout. Lockout will be reset automatically after three hours, by momentarily interrupting 115 vac THERMOSTAT (ADAPTIVE MODE) power to the furnace, or by interrupting 24 vac power at (See Fig. 31 for thermostat connections.) SEC1 or SEC2 to the furnace control CPU (not at W/W1, NOTE: Low-heat-only switch, SW-1, selects either the G, R, etc.).
- Page 50 2. Switching From High-To Low-Heat - - If the thermostat R NOTE: When transitioning from low-cooling to high-cooling the to W2 circuit opens, and the R to W1 circuit remains outdoor unit compressor will shutdown for 1 minute while the closed, the furnace control CPU will switch the inducer BLWM continues to run at low-cool speed (same speed as motor IDM speed from high to low.
- Page 51 A00275 A00277 Fig. 50 - - Two-Stage Furnace with Single-Speed Air Fig. 52 - - Two-Stage Furnace with Single-Speed Heat Pump Conditioner (Dual Fuel) A00278 A00276 Fig. 53 - - Two-Stage Furnace with Two-Speed Heat Pump Fig. 51 - - Two-Stage Furnace with Two-Speed Air (Dual Fuel) Conditioner...
- Page 52 A00279 A00281 Fig. 54 - - Dual Fuel Thermostat with Two- -Stage Furnace and Fig. 56 - - Two-Stage Thermostat With Two-Stage Furnace Single- -Speed Heat Pump and Two-Speed Air Conditioner A00282 A00280 Fig. 57 - - Single-Stage Thermostat With Two-Stage Furnace Fig.
- Page 53 NOTES FOR FIG. 50- -57: 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.
- Page 54 CONTINUOUS BLOWER MODE the furnace control begins a normal inducer post-purge period and the blower switches to COOL speed after a 3 second delay. When the R to G circuit is closed by the thermostat, the blower R-to-W/W1-and-Y/Y2-and-G R-to motor BLWM will operate on continuous-blower speed (can be W/W1-and-Y1-and- Y/Y2-and-G signals disappear at the same set to LO HT, HI HT, or COOL speed).
- Page 55 Jumper R and W1 and W2 thermostat connections on c. Verify furnace model and size. Table 15 can only be control. (See Fig. 37.) This keeps furnace locked in used for model PG9MXA furnaces with heating inputs high-heat operation. of 20,000/13,000 (High/Low) Btuh per burner.
- Page 56 Table 15 – Model PG9MXA Orifice Size and High/Low-Heat Manifold Pressures for Correct Inputs for Use with 060 Through 120 Size Furnaces Only (Tabulated Data Based on 20,000/13,000 Btuh per Burner, Derated 2 Percent for Each 1000 ft (305 M) Above Sea Level)*...
- Page 57 Table 15 --- Model PG9MXA Orifice Size and High/Low-Heat Manifold Pressures for Correct Inputs (Continued) for Use With 060 Through 120 Size Furnaces Only (Tabulated Data Based on 20,000/13,000 Btuh per Burner, Derated 2 Percent for Each 1000 ft (305 M) Above Sea Level)* A08376B NOTE: Percents of derate are based on midpoints of U.S.
- Page 58 EXAMPLE: 100,000 Btuh input furnace installed at 4300 ft (1310 M). High Stage Regulator Seal Cap Regulator Adjustment Under Cap Furnace Input Rate Derate Furnace Input Rate ON/OFF Switch at Sea Level Multiplier at Installation ½” NPT Inlet Factor Altitude Low Stage Regulator Seal Cap 100,000 0.91...
- Page 59 Table 16 – Altitude Derate Multiplier for U.S.A. SET TEMPERATURE RISE ALTITUDE PERCENT OF DERATE MULTIPLIER CAUTION FT (M) DERATE FACTOR* 0–2000 1.00 (305 --- 610) UNIT DAMAGE HAZARD 2001–3000 4---6 0.95 Failure to follow this caution may result in unit component (610 --- 914) damage.
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Page 60: Check Safety Controls
(Read following caution before changing taps). THERMOSTAT SUBBASE TERMINALS WITH CAUTION THERMOSTAT REMOVED HOOK-AROUND UNIT DAMAGE HAZARD VOLT/AMMETER To avoid operating outside the rise range and avoid component damage: R Y W G 1. NEVER connect Speed Tap 1 (Red) wire to “HI HT.” 2. -
Page 61: Checklist
CHECKLIST—DIRECT VENT (2-PIPE) INSTALLATION LOAD CALCULATION Condensate Drain ____________ Heating Load (Btuh) ____________ Unit Level or Pitched Forward ____________ Cooling Load (Btuh) ____________ Internal Tubing Connections Free of Kinks and Traps ____________ Furnace Model Selection ____________ External Drain Connection Leak Tight and Sloped COMBUSTION AIR AND VENT PIPING ____________ Condensate Trap Primed before Start-Up... - Page 62 ____________ Primary Limit ____________ Pressure Switch Catalog No:IM--- PG9MXA --- 01 Copyright 2008 Carrier Corp. D 7310 W. Morris St. D Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 06/08 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.