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272313-UIM-A-0407

HIGH EFFICIENCY

TUBULAR HEAT EXCHANGER SERIES

MODELS: PT9-UP / FC9T-UP / FL9T-UP

(Two Stage Upflow)

40 - 120 MBH INPUT

(11.7 - 35.1 KW) INPUT

INSTALLATION MANUAL

EFFICIENCY

RATING

CERTIFIED

ISO 9001

Certified Quality

Management System

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.

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.

LIST OF SECTIONS

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

COMBUSTION AIR AND VENT SYSTEM . . . . . . . . . . . . . . . . . . . . .13

CONDENSATE PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . .21

WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

LIST OF FIGURES

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Thermostat Chart - AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Thermostat Chart - HP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Accessory Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Twinning Wiring Diagram - 1H/1C Thermostat . . . . . . . . . . . . . . . . . 13

Twinning Wiring Diagram - 2H/1C Thermostat . . . . . . . . . . . . . . . . . 13

Twinning Wiring Diagram - 2H/2C Thermostat . . . . . . . . . . . . . . . . . 13

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Home Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Termination Configuration - 1 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Termination Configuration - 2 Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Termination Configuration - 2 Pipe Basement . . . . . . . . . . . . . . . . . .17

Double Horizontal Sealed Combustion Air and Vent Termination . . .18

Double Vertical Sealed Combustion Air and Vent Termination . . . . .18

Sealed Combustion Air Intake Connection and Vent Connection . . .18

Combustion Airflow Path Through The Furnace Casing . . . . . . . . . .18

Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . .19

Attic and Crawl Space Combustion Air Termination . . . . . . . . . . . . . .20

Condensate Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Pressure Switch Tube Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Minimum Duct Sizing For Proper Airflow . . . . . . . . . . . . . . . . . . . . . . . 5

Round Duct Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Recommended Filter Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Nominal Manifold Pressure - High Fire . . . . . . . . . . . . . . . . . . . . . . . . 8

Nominal Manifold Pressure - Low Fire . . . . . . . . . . . . . . . . . . . . . . . . . 8

Electrical and Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Maximum Equivalent Pipe Length . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Equivalent Length of Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Elbow Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Combustion Air Intake and Vent Connection Size at Furnace

(All Models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Unconfined Space Minimum Area in Square Inch . . . . . . . . . . . . . . .19

Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Blower Performance CFM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Filter Performance - Pressure Drop Inches W.C. and (kPa) . . . . . . . .27

Field Installed Accessories - Non Electrical . . . . . . . . . . . . . . . . . . . .28

1 2 3 4 5 6 ... 31 32

Inhaltsverzeichnis

Seite 1 - INSTALLATION MANUAL

272313-UIM-A-0407HIGH EFFICIENCYTUBULAR HEAT EXCHANGER SERIESMODELS: PT9-UP / FC9T-UP / FL9T-UP(Two Stage Upflow)40 - 120 MBH INPUT(11.7 - 35.1 KW) IN

Seite 2

272313-UIM-A-040710 Unitary Products GroupFor additional connection diagrams for all UPG equipment refer to “Low Voltage System Wiring” document avail

Seite 3

272313-UIM-A-0407Unitary Products Group 11 FIGURE 6: Thermostat Chart - HPHP23 Two Stage H/P - H*5B, YZE - w/Two Stage Furnace, 2 Stage Cooling Ready

Seite 4 - SECTION II: DUCTWORK

272313-UIM-A-040712 Unitary Products GroupACCESSORY CONNECTIONSThe furnace control will allow power-switching control of various acces-sories. Refer t

Seite 5 - Unitary Products Group 5

272313-UIM-A-0407Unitary Products Group 13Twinning OperationHeating - On a call for low-stage heat (W1 signal) from the wall thermo-stat, both furnace

Seite 6 - SECTION III: FILTERS

272313-UIM-A-040714 Unitary Products GroupCOMBUSTION AIR/VENT PIPE SIZINGThe size of pipe required will be determined by the furnace model, thetotal l

Seite 7 - SECTION IV: GAS PIPING

272313-UIM-A-0407Unitary Products Group 15*. Vent pipe size must be increased to 3” diameter after connection to furnace on this model.IMPORTANT: Acce

Seite 8 - SECTION V: ELECTRICAL POWER

272313-UIM-A-040716 Unitary Products GroupVENT CLEARANCES† A vent shall not terminate directly above a sidewalk or paved driveway that is located betw

Seite 9 - SUPPLY VOLTAGE CONNECTIONS

272313-UIM-A-0407Unitary Products Group 17VENT SYSTEMThis furnace is certified to be installed with one of two possible ventconfigurations.1. Horizont

Seite 10 - 10 Unitary Products Group

272313-UIM-A-040718 Unitary Products Group COMBUSTION AIR SUPPLYAll installations must comply with Section 5.3, Air for Combustion andVentilation of t

Seite 11 - Unitary Products Group 11

272313-UIM-A-0407Unitary Products Group 19A confined space is an area with less than 50 cu.ft (1.42 m3) per 1,000Btu/hr (0.2928 kW) input rating for a

Seite 12

272313-UIM-A-04072 Unitary Products GroupSPECIFIC SAFETY RULES AND PRECAUTIONS1. Only Natural gas or Propane (LP) gas are approved for use withthis fu

Seite 13 - VENT SYSTEM

272313-UIM-A-040720 Unitary Products GroupVent and Supply (Outside) Air Safety Check ProcedureFollow the procedure in ANSI Z223.1 National Fuel Gas Co

Seite 14 - 14 Unitary Products Group

272313-UIM-A-0407Unitary Products Group 21CONDENSATE DRAINThe condensate trap must be filled with water before putting the furnaceinto operation. Perf

Seite 15 - Unitary Products Group 15

272313-UIM-A-040722 Unitary Products GroupTOOLS AND INFORMATION THAT WILL BE REQUIRED IN ORDER TO PROPERLY PERFORM THE FURNACE STARTUP PROCEDURE.1. Ca

Seite 16 - VENT CLEARANCES

272313-UIM-A-0407Unitary Products Group 23In the USA use the following formula to calculate the furnace input.For natural gas multiply the heat conten

Seite 17 - 12” MIN

272313-UIM-A-040724 Unitary Products GroupIMPORTANT: The inlet gas pressure operating range table specifieswhat the minimum and maximum gas line press

Seite 18 - Ambient Combustion Air Supply

272313-UIM-A-0407Unitary Products Group 25ADJUSTMENT OF TEMPERATURE RISEThe temperature rise, or temperature difference between the return airand the

Seite 19 - AIR SUPPLY OPENINGS AND DUCTS

272313-UIM-A-040726 Unitary Products GroupFURNACE CONTROL DIAGNOSTICSThe furnace has built-in, self-diagnostic capability. If a system problemoccurs,

Seite 20 - Ventilated Combustion Air

272313-UIM-A-0407Unitary Products Group 27NOTES:1. Airflow expressed in standard cubic feet per minute (CFM) and in cubic meters per minute (m3/min).2

Seite 21 - ADJUSTMENTS

272313-UIM-A-040728 Unitary Products GroupAPPLYING FILTER PRESSURE DROP TO DETERMINE SYSTEM AIRFLOWTo determine the approximate airflow of the unit wi

Seite 22

272313-UIM-A-0407Unitary Products Group 29SECTION X: WIRING DIAGRAM FIGURE 27: Wiring Diagram

Seite 23 - Unitary Products Group 23

272313-UIM-A-0407Unitary Products Group 3INSPECTIONAs soon as a unit is received, it should be inspected for possible dam-age during transit. If damag

Seite 24

272313-UIM-A-040730 Unitary Products GroupNOTES

Seite 25 - Unitary Products Group 25

272313-UIM-A-0407Unitary Products Group 31NOTES

Seite 26 - RETRIEVAL

Seite 27 - FILTER PERFORMANCE

272313-UIM-A-04074 Unitary Products GroupSECTION II: DUCTWORKDUCTWORK GENERAL INFORMATIONThe duct system’s design and installation must:1. Handle an a

Seite 28 - DETERMINE SYSTEM AIRFLOW

272313-UIM-A-0407Unitary Products Group 51. The Air Temperature Rise is determined by subtracting the ReturnAir Temperature Reading from the Supply Ai

Seite 29 - SECTION X: WIRING DIAGRAM

272313-UIM-A-04076 Unitary Products GroupRESIDENTIAL AND NON HUD MODULAR HOME RETURN PLENUM CONNECTIONReturn air may enter the furnace through the sid

Seite 30 - 30 Unitary Products Group

272313-UIM-A-0407Unitary Products Group 7NOTES: 1. Air velocity through throwaway type filters may not exceed 300 feet per minute. All velocities over

Seite 31 - Unitary Products Group 31

272313-UIM-A-04078 Unitary Products GroupGAS ORIFICE CONVERSION FOR PROPANE (LP)This furnace is constructed at the factory for natural gas-fired opera

Seite 32 - Group Drive 73069

272313-UIM-A-0407Unitary Products Group 9Annual Fuel Utilization Efficiency (AFUE) numbers are determined in accordance with DOE Test procedures.Wire

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