46201200402 12/2015
Specifications are subject to change without notice.
INSTALLATION INSTRUCTIONS
14 SEER Single--Packaged Air Conditioner and
Gas Furnace System with R--410A Refrigerant
Single Phase 2--5 Nominal Tons (Sizes 24--60)
Three Phase 3--5 Nominal Tons (Sizes 36--60)
PGD4andPGS4SeriesE,WPG4SeriesB
IMPORTANT: Effective January 1, 2015, all split system and
packaged air conditioners must be installed pursuant to applicable
regional efficiency standards issued by the Department of Energy.
NOTE: Read the entire instruction manual before starting the
installation.
NOTE: Installer: Make sure the Owner’s Manual and Service
Instructions are left with the unit after installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.........................
INTRODUCTION 2...................................
RECEIVING AND INST ALLATION 2--14.................
Check Equipment 2..................................
Identify Unit 2....................................
Inspect Shipment 2.................................
Provide Unit Support 2...............................
Roof Curb 2......................................
Slab Mount 2.....................................
Field Fabricate Ductwork 3............................
Provide Clearances 3.................................
Rig and Place Unit 3.................................
Inspection 3......................................
Rigging/Lifting of Unit 3............................
Connect Condensate Drain 10..........................
Install Flue Hood 11..................................
Install Gas Piping 11.................................
Install Duct Connections 12............................
Configuring Units for Downflow (Vertical)
Discharge 12.....................................
Install Electrical Connections 13........................
High-- Voltage Connections 13........................
Special Procedures for 208--V Operation 13..............
Control Voltage Connections 13.......................
Standard Connection 14.............................
Heat Anticipator Setting 14..........................
Transformer Protection 14...........................
PRE-- START --UP 14...................................
START--UP 15--26.....................................
Check for Refrigerant Leaks 15.........................
Start--Up Heating & Make Adjustments 15................
Check Heating Control 15...........................
Check Gas Input 15................................
Adjust Gas Input 17................................
Check Burner Flame 17.............................
Normal Operation 24...............................
Airflow and Temperature Rise 24......................
Heating Sequence of Operation 24.....................
Limit Switches 24.................................
Rollout Switch 24.................................
Start-- Up Cooling & Make Adjustments 24................
Checking Cooling Control Operation 24................
Checking & Adjusting Refrigerant Charge 25............
Indoor Airflow and Airflow Adjustments 25.............
Cooling Sequence of Operation 26.....................
MAINTENANCE 53--56................................
A09044
Fig. 1 -- Unit PGD4, PGS4, WPG4
(Low NOx Model Available)
Air Filter 53......................................
Indoor Blower and Motor 53.........................
Induced Draft (Combustion Air) Blower 54..............
Flue Gas Passageways 54............................
Limit Switch 54...................................
Burner Ignition 54.................................
Main Burners 54...................................
Removal of Gas Train 54............................
Outdoor Coil, Indoor Coil, & Condensate Drain Pan 54....
Outdoor Fan 55...................................
Electrical Controls and Wiring 55.....................
Refrigerant Circuit 56...............................
Gas Input 56......................................
Evaporator Airflow 56..............................
R--410A Items 56..................................
TROUBLESHOOTING 57..............................
START--UP CHECKLIST 57............................
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product. Refer to the individual instructions
packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Have a fire extinguisher available. Read these
instructions thoroughly and follow all warnings or cautions
included in literature and attached to the unit. consult local
building codes, the current editions of the National Fuel Gas Code
(NFGC) NFPA 54/ANSI Z223.1, and the National Electrical Code
(NEC) NFPA 70.
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