582J
SINGLE PACKAGE ROOFTOP
GAS HEATING/ELECTRIC COOLING UNIT
SIZES 04 -- 06 with PURON
R
(R--410A) REFRIGERANT
Installation Instructions
NOTE: Read the entire instruction manual before starting
the installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2....................
Rated Indoor Airflow (cfm) 3.....................
INSTALLATION 8...............................
Jobsite Survey 8................................
Step 1 -- Plan for Unit Location 8..................
Roof Mount 8...............................
Step 2 -- Plan for Sequence of Unit Installation 8......
Curb--Mount Instal lati on 8.....................
Pad--Mount Instal lati on 9......................
Frame--Mount Installation 9....................
Step 3 -- Inspect Unit 9...........................
Step 4 -- Provide Unit Support 9...................
Roof Curb Mount 9..........................
Slab Mount (Horizontal Units Only) 9...........
Alternate Unit Support
(In Lieu of Curb or Slab Mount) 9..............
Step 5 -- Field Fabricate Ductwork 11...............
Step 6 -- Rig and Place Unit 11....................
Positioning on Curb 13.......................
Step 7 -- Convert to Horizontal & Connect Ductwork 13.
Step 8 -- Install Outside Air Hood 13...............
Economizer and Two Po s ition Damper Hood
Pack age Removal and Setup — Factory Optio n 13..
Economizer Hood and Two--Position Hood 14.....
Step 9 -- Units with Hinge d Panels Only 14..........
Step 10 -- Install Flue Hood 15....................
Step 11 -- Install Gas Piping 15....................
Factory--Option Thru--Base Connections
(Gas Connections) 16.........................
Step 12 -- Install External Condensate Trap and Line 18..
Step 13 -- Make Electrical Connections 18...........
Field Power Supply 18........................
Units with Factory--Installed
Non--Fused Disconnect 19.....................
Units without Fac tory --Installe d
Non--Fused Disconnect 20.....................
All Units 20................................
Convenie nce Outlets 20.......................
Factory--Option Thru--Base Connections
(Electrical Connections) 21....................
Units without T hru--Ba se Connections 22.........
Field Control Wiring 22.......................
Thermostat 22...............................
Unit without Thru--Base Connection Kit 22.......
Heat Anticipator Settings 22...................
Perfect Humidityt Control Connections 23........
Perfect Humidity -- Space RH Controller 23.......
EconoMi$e r
R
X (Fact ory--Insta lled Option) 25......
RTU Open Control System 26...................
Supply Air Temperature (SAT) Sensor 29.........
Outdoor Air Temperature (OAT) Sensor 29.......
EconoMi$e r2 30.............................
Field Connections 30..........................
Space Temperature (SPT) Sensors 30............
Indoor Air Quality (CO
2
)Sensor 31.............
Outdoor Air Quality Sensor 31.................
Space Humidity Sensor or Humidistat 32.........
Smoke Detector/Fire Shutdown (FSD) 33.........
Connect ing Discrete Inputs 33..................
Communication Wiring -- Protocols 34............
General 34.................................
Local Access 35..............................
RTU Open Troubleshooting 35.................
Outdoor Air Enthalpy Control 36.................
Differential Enthalpy Control 36................
Return Air Enthalpy Sensor 37.................
Smoke Detectors 37...........................
Step 14 -- Adjust Factory--Installe d Options 41........
Step 15 -- Install Accessories 41...................
UNIT START--UP CHECKLIST 43..................
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