580J
SINGLE PACKAGE ROOFTOP, GAS HEATING/ELECTRIC COOLING
VERTICAL AIR FLOW UNIT WITH PURON
R
(R--410A) REFRIGERANT
15, 17.5, 20, 25, 27.5 TONS -- (SIZES 17, 20, 24, 28, 30)
Installation Instructions
NOTE: Read the entire instruction manual before starting
the installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2....................
Rated Indoor Airflow (cfm) 3.....................
INSTALLATION 10..............................
Jobsite Survey 10...............................
Step 1 -- Plan for Unit Location 10.................
Roof Mount 10..............................
Step 2 -- Plan for Sequence of Unit Installation 10.....
Curb--Mount Installation 10....................
Pad--Mount Installation 10.....................
Frame--Mount Installation 10...................
Step 3 -- Inspect Unit 10..........................
Step 4 -- Provide Unit Support 12..................
Roof Curb Mount 12.........................
Alternate Unit Support (In Lieu of Curb Mount) 12..
Step 5 -- Field Fabricate Ductwork 16...............
Step 6 -- Rig and Place Unit 16....................
Positioning on Curb 17.......................
Step 7 -- Install Outside Air Hood — Factory Option 17..
Step 8 -- Install Flue Hood and Combustion Air Hood 18.
Step 9 -- Install Gas Piping 18....................
Gas Supply Line 18..........................
Factory--Option Thru--Base Connections 20.......
Step 10 -- Install External Condensate Trap & Line 21...
Step 11 -- Make Electrical Connections 21...........
Field Power Supply 21........................
Units Without Factory--Installed
Non--Fused Disconnect 22.....................
Units With Factory--Installed
Non--Fused Disconnect 22.....................
All Units 22................................
Convenience Outlets 23.......................
Factory--Option Thru--Base Connections 24......
Units Without Thru--Base Connections 24........
Field Control Wiring 25.......................
Thermostat 25...............................
Unit Without Thru--Base Connection Kit 25.......
Heat Anticipator Settings 25...................
Transformer Connection
for 208--v Power Supply 25.....................
Perfect Humidityt Control Connections 26........
Perfect Humidity -- Space RH Controller 26.......
2--Speed Indoor Fan Motor System with
Variable Frequency Drive (Factory Option) 27......
EconoMi$er X -- Ultra Low Leak Economizer
(Factory Option) 27............................
RTU Open Control System 28...................
Supply Air Temperature (SAT) Sensor 31.........
Outdoor Air Temperature (OAT) Sensor 31.......
EconoMi$er2 32.............................
Field Connections 32..........................
Space Temperature (SPT) Sensors 32............
Indoor Air Quality (CO
2
)Sensor 33.............
Outdoor Air Quality Sensor 33.................
Smoke Detector/Fire Shutdown (FSD) 34.........
Space Humidity Sensor or Humidistat 34.........
Connecting Discrete Inputs 35..................
Communication Wiring -- Protocols 36............
General 36.................................
Local Access 37.............................
RTU Open Troubleshooting 37.................
Outdoor Air Enthalpy Control 38.................
Differential Enthalpy Control 38................
SMOKE DETECTORS 39.........................
Return Air Sensor Tube Installation 39..............
Smoke Detector Test Magnet 39...................
Additional Application Data 39....................
ELECTRICAL DATA FOR UNITS PRODUCED
ON OR AFTER JULY 30, 2012 40..................
ELECTRICAL DATA FOR UNITS PRODUCED
PRIOR TO JULY 30, 2012 45......................
Step 12 -- Adjust Factory--Installed Options 48........
Step 13 -- Install Accessories 48...................
START--UP CHECKLIST 51.......................
To Next Page
Need help?
General
