York P*XU/G9D-UP User Manual

CONTENTS
GENERAL INFORMATION ...............................................3
SPECIFIC UNIT INFORMATION ......................................4
DUCTWORK .....................................................................5
UPFLOW MODELS ...........................................................7
GAS PIPING .....................................................................8
ELECTRICAL POWER CONNECTION ............................9
ELECTRICAL CONTROL CONNECTIONS ....................10
COMBUSTION AIR AND VENT SYSTEM ......................11
HORIZONTAL VENT APPLICATIONS ...........................18
CONDENSATE PIPING ..................................................19
SAFETY CONTROLS .....................................................19
START-UP AND ADJUSTMENTS ..................................20
ACCESSORY CONNECTIONS ......................................24
FURNACE ACCESSORIES .........................................25
FILTER PERFORMANCE ...............................................26
OPERATION AND MAINTENANCE ...............................26
TROUBLESHOOTING ....................................................30
FURNACE CONTROL DIAGNOSTICS ..........................30
WIRING DIAGRAM - UPFLOW MODELS ......................32
INSTALLATION
INSTRUCTION
CAUTION:READ ALL SAFETY GUIDES BEFORE YOU
START TO INSTALL YOUR FURNACE.
SAVE THIS MANUAL
TWO-STAGE DELUXE
HIGH-EFFICIENCY GAS-FIRED FURNACES
TUBULAR HEAT EXCHANGER SERIES
MODELS: P*XU / G9D-UP (UPFLOW)
60 - 120 MBH INPUT
035-17480-000 Rev. A (800)

York P*XU/G9D-UP Specifications

General

Heating Capacity	40, 000 to 120, 000 BTU/h
AFUE Rating	Up to 96%
Fuel Type	Natural Gas or Propane
Efficiency	Up to 96%
Blower Motor Type	ECM
Dimensions (H x W x D)	Varies by model
Weight	Varies by model

Summary

General Information

Vent Safety Check Procedure

Vent Safety Warnings

Critical warnings and procedures for ensuring safe venting operation.

Specific Unit Information

Limitations & Location

Gas Piping

Gas Supply and Connections

Procedures and requirements for connecting the gas supply line.

Electrical Power Connection

Power Supply Requirements

Specifications and guidelines for connecting the main power supply.

Electrical Control Connections

Thermostat Wiring

Instructions for wiring single and two-stage thermostats to the furnace.

Combustion Air and Vent System

Two-Pipe Sealed Combustion System

Details for installing a two-pipe system for combustion air and venting.

Safety Controls

Start-Up and Adjustments

Ignition System Sequence

Step-by-step process for the furnace ignition sequence.

Adjustment of Manifold Gas Pressure

Outlet Pressure Adjustment

Procedures for adjusting low and high gas outlet pressure.

Adjustment of Temperature Rise

Blower Speed Adjustment

Heating Operational Sequence

Two-Stage Thermostat Sequence

Maintenance

Troubleshooting

Visual Checks

Furnace Control Diagnostics

Fault Code Display

Interpreting fault codes indicated by the control board's LED.

Resetting Lockout Conditions

Wiring Diagram - Upflow Models

Connection Diagram Overview