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INSTALLATION MANUAL
HIGH EFFICIENCY
TUBULAR HEAT EXCHANGER SERIES
MODELS: PT9 / FC9T / FL9T
(Two Stage Upflow)
40 - 120 MBH INPUT
(11.7 - 35.1 KW) INPUT
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Furnace Base Rectangular Blockoff Panel . . . . . . . . . . . . . . . . . . . . . 6
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Line Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Single Stage Heat Thermostat Connections . . . . . . . . . . . . . . . . . . . . 9
Thermostat Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermostat Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Accessory Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Termination Configuration - 1 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Minimum Duct Sizing For Proper Airflow . . . . . . . . . . . . . . . . . . . . . . . 4
Round Duct Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Filter Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High Altitude Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical and Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
(All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SECTION I: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
LIST OF SECTIONS
COMBUSTION AIR AND VENT SYSTEM . . . . . . . . . . . . . . . . . . . . . .9
CONDENSATE PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .16
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
LIST OF FIGURES
Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . . . . . .12
Combustion Airflow Path Through The Furnace Casing . . . . . . . . . .13
Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . .14
Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . . .15
Condensate Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Pressure Switch Tube Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
LIST OF TABLES
Combustion Air Supply and Vent Piping . . . . . . . . . . . . . . . . . . . . . . .10
Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Unconfined Space Minimum Area in Square Inch . . . . . . . . . . . . . . .14
Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Blower Performance CFM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Filter Performance - Pressure Drop Inches W.C. and (kPa) . . . . . . . .21
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual
for assistance or for additional information, consult a qualified con-
tractor, installer or service agency.
This product must be installed in strict compliance with the installa-
tion instructions and any applicable local, state, and national codes
including, but not limited to building, electrical, and mechanical
codes.
EFFICIENCY
RATING
CERTIFIED
ISO 9001
Certified Quality
Management System
106633-UIM-A-0205
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Table of Contents
Related Manuals for York PT9 Series
Summary of Contents for York PT9 Series
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Page 1: Table Of Contents
INSTALLATION MANUAL HIGH EFFICIENCY EFFICIENCY RATING TUBULAR HEAT EXCHANGER SERIES CERTIFIED MODELS: PT9 / FC9T / FL9T (Two Stage Upflow) ISO 9001 Certified Quality 40 - 120 MBH INPUT Management System (11.7 - 35.1 KW) INPUT LIST OF SECTIONS SAFETY ..........1 COMBUSTION AIR AND VENT SYSTEM . -
Page 2: Safety
106633-UIM-A-0205 SPECIFIC SAFETY RULES AND PRECAUTIONS • These models ARE NOT CSA listed or approved for installation into a HUD Approved Modular Home or a Manufactured Only Natural gas or Propane (LP) gas are approved for use with (Mobile) Home. this furnace. -
Page 3: Ductwork
106633-UIM-A-0205 Installation in freezing temperatures: Furnace shall be installed in an area where ventilation facilities provide for safe limits of ambient temperature under normal oper- The furnace area must not be used as a broom closet or for any ating conditions. Ambient temperatures must not fall below 32°F other storage purposes, as a fire hazard may be created. -
Page 4: Minimum Duct Sizing For Proper Airflow
106633-UIM-A-0205 The duct system is a very important part of the installation. If the duct system is improperly sized the furnace will not operate properly. The ducts attached to the furnace plenum should be of sufficient size so that the furnace operates at the specified external static pressure and The duct system must be properly sized to obtain the correct airflow for the furnace size that is being installed. -
Page 5: Dimensions
106633-UIM-A-0205 If a matching cooling coil is used, it may be placed directly on the fur- nace outlet and sealed to prevent leakage. Follow the coil instructions for installing the supply plenum. On all installations without a coil, a The supply air temperature MUST NEVER exceed the Maximum removable access panel is recommended in the outlet duct such that Supply Air Temperature, specified on the nameplate. -
Page 6: Filters
106633-UIM-A-0205 SECTION IV: GAS PIPING GAS SAFETY Removable Rectangular Base Panel. An overpressure protection device, such as a pressure regulator, must be installed in the gas piping system upstream of the furnace and must act to limit the downstream pressure to the gas valve so it Toe Plate does not exceed 0.5 PSI {14"... -
Page 7: High Altitude Conversion
106633-UIM-A-0205 TABLE 5: High Altitude Conversion Type Orifice at 2,000 ft. 3,000 ft. 4,000 ft. Of Gas Sea Level (610 m) (914 m) (1219 m) The gas valve body is a very thin casting that cannot take any Natural external pressure. Never apply a pipe wrench to the body of the gas Propane valve when installing piping. -
Page 8: Electrical Power
106633-UIM-A-0205 SECTION V: ELECTRICAL POWER TABLE 6: Electrical and Performance Data Input High/Low Output High/Low Blower Size Blower Max. Air Temp. Rise Over-current Amps °F °C Protect 40/26 12/8 38/24 11/7 11 x 8 27.9 x 20.3 35 - 65 19 - 36 60/39 18/11... -
Page 9: Line Wiring Connections
106633-UIM-A-0205 LOW VOLTAGE CONTROL WIRING CONNECTIONS HUM. HOT Install the field-supplied thermostat by following the instructions that 115 VOLT HUMIDIFER come with the thermostat. With the thermostat set in the OFF position SWITCHED and the main electrical source disconnected, connect the thermostat CIRCUITS wiring from the wiring connections on the thermostat to the terminal EAC HOT... -
Page 10: Combustion Air Intake And Vent Connection Size At Furnace (All Models)
106633-UIM-A-0205 COMBUSTION AIR/VENT PIPE SIZING The use of flexible connectors or no hub connectors in the vent system is not allowed. This type connection is allowed in the com- Select the correct size from Table 8. The size will be determined by a bustion air pipe near the furnace for air conditioning coil accessibil- combination of furnace model, total length of run, and the number of ity. -
Page 11: Home Layout
106633-UIM-A-0205 VENT CLEARANCES VENT TERMINAL FIXED AIR SUPPLY CLOSED AREA WHERE TERMINAL IS NOT PERMITTED FIXED CLOSED OPERABLE FIGURE 11: Home Layout Canadian Installations US Installation A. Clearance above grade, veranda, porch, deck, or 12 inches (30 cm) 12 inches (30 cm) balcony Two-pipe (direct vent) applications: 9 inches 12 inches (30 cm) for models <100,000... -
Page 12: Termination Configuration - 1 Pipe
106633-UIM-A-0205 VENT SYSTEM This furnace is certified to be installed with one of two possible vent configurations. 12” MIN. Horizontal vent system. This vent system can be installed com- pletely horizontal or combinations of horizontal, vertical, or offset using elbows. 12”... -
Page 13: Double Horizontal Sealed Combustion Air And Vent Termination
106633-UIM-A-0205 CONNECTS TO COLLAR ON TOP VENT OF BURNER BOX VENT PIPE CEMENTS INTO SOCKET JUST ABOVE TOP PANEL OR VENT PIPE MAY BE CLAMPED INTO OUTLET OF DRAIN COUPLING COMBUSTION AIR 2” FIGURE 15: Double Horizontal Sealed Combustion Air and Vent Termination FIGURE 17: Sealed Combustion Air Intake Connection and Vent Connection... -
Page 14: Outside And Ambient Combustion Air
106633-UIM-A-0205 A automatically operated damper or automatically adjustable lou- vers shall be interlocked so that the main burner cannot operate unless either the damper or the louver is in the fully open position This type of installation requires that the supply air to the appli- TABLE 10: Free Area ance(s) be of a sufficient amount to support all of the appliance(s) in the area. -
Page 15: Condensate Piping
106633-UIM-A-0205 Vent and Supply (Outside) Air Safety Check Procedure Ventilated Combustion Air Termination Follow the procedure in ANSI Z223.1 National Fuel Gas Code. Refer to Refer to Figure 20 for required attic termination for the combustion air the section on the “Recommended Procedure for Safety Inspection of intake pipe. -
Page 16: Safety Controls
106633-UIM-A-0205 CONDENSATE DRAIN PRESSURE SWITCHES The condensate trap must be filled with water before putting the furnace This furnace is supplied with two pressure switches which monitor the into operation. Perform the following procedures only after the conden- flow through the combustion air/vent piping system. These switches de- sate trap has been properly piped to a drain connection using the pro- energize the ignition control module and the gas valve if any of the fol- cedure in this instruction. - Page 17 106633-UIM-A-0205 TOOLS AND INFORMATION THAT WILL BE After this warm up, the ignition module will energize (open) REQUIRED IN ORDER TO PROPERLY PERFORM THE the main gas valve. FURNACE STARTUP PROCEDURE. After flame is established, the supply air blower will start in about 30 seconds.
- Page 18 106633-UIM-A-0205 In the USA use the following formula to calculate the furnace input. For natural gas multiply the heat content of the gas BTU/SCF or Default 1030 BTU/SCF (38.4 MJ/m ), times 2 cubic ft. (0.056 m) of gas measured at the gas meter, times a barometric pressure and temperature correction factor of 0.960;...
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Page 19: Gas Valve
106633-UIM-A-0205 IMPORTANT: The cap for the pressure regulator must be removed entirely to gain access to the adjustment screw. Loosening or tightening the cap does not adjust the flow of gas. Refer to Figure 23 for location of pressure regulator adjustment Be sure to relight any gas appliances that were turned off at the cap and adjustment screws on main gas valve. -
Page 20: Reading Gas Pressure
106633-UIM-A-0205 WITH BURNER BOX COVER IN PLACE WITH BURNER BOX COVER REMOVED BURNER BOX PRESSURE REFERENCE HOSE BURNER BOX PRESSURE FITTING REFERENCE HOSE (not used) BURNER BOX WITH COVER BURNER BOX REMOVED WITH COVER OUTLET PRESSURE OUTLET PRESSURE GAS VALVE GAS VALVE 3.5 IN 3.5 IN... -
Page 21: Blower Performance Cfm
106633-UIM-A-0205 TABLE 14: Blower Performance CFM AIRFLOW WITH BOTTOM OR ONE SIDE RETURN MODELS EXTERNAL STATIC PRESSURE, INCHES W.C. (kPa) Speed 0.1 (0.025) 0.2 (0.050) 0.3 (0.075) 0.4 (0.099) 0.5 (0.124) 0.6 (0.149) 0.7 (0.174) 0.8 (0.199) 0.9 (0.224) 1.0 (0.249) Input/ Airflow/cabinet CFM m... - Page 22 106633-UIM-A-0205 APPLYING FILTER PRESSURE DROP TO Example: For a 120,000 BTUH (38.06 kW) furnace with 2 return open- DETERMINE SYSTEM AIRFLOW ings and operating on high-speed blower, it is found that total system static is 0.58” w.c. To determine the system airflow, complete the follow- To determine the approximate airflow of the unit with a filter in place, fol- ing steps: low the steps below:...
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Page 23: Wiring Diagram
106633-UIM-A-0205 SECTION X: WIRING DIAGRAM FIGURE 26: Wiring Diagram Unitary Products Group... - Page 24 Subject to change without notice. Printed in U.S.A. 106633-UIM-A-0205 Copyright © by York International Corp. 2005. All rights reserved. Supersedes: 035-20417-001 Rev. C (0904) Unitary 5005 Norman Product York Group Drive 73069...