Installation Instructions
50TC
Single Package Rooftop
Cooling Only
with Puronr (R ---410A) Refrigerant
Sizes 08, 12, and 14 with Novation
R
Coil
Sizes 08 --- 14 with Round Tube/Plate Fin Coil
NOTE: Read the entire instruction manual before starting
the installation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2....................
Rated Indoor Airfl ow (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 Installation 9.....................
Pad--Mount Installation 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 12....................
Positioning on Curb 12.......................
Step 7 -- Convert to Horizontal and Connect Ductwork 12
Step 8 -- Install Outside Air Hood 12...............
Economizer and Two Position Damper Hoo d
Pack age Removal and Setup — Factory Option 12..
Economizer Hood and Two--Position Hood 13.....
Step 9 -- Install External Condensate Trap and Line 14.
Step 10 -- Make Electrical Connections 14...........
Field Power Supply 14........................
Units with Factory--Installed
Non--Fused Disconnect 15.....................
Units without Factory--Installe d
Non--Fused Disconnect 16.....................
All Units 16................................
Convenie nce Outlets 16.......................
Factory--Option Thru--Base Connections 18.......
Units without Thru--Base Connections 18.........
Field Control Wiring 18.......................
Thermostat 18...............................
Unit without Thru--Base Connection Kit 18.......
Heat Anticipator Settings 19...................
Electric Heaters 19............................
Single Point Boxes and Supplementary Fuses 20...
Single Point Boxes without Fuses 20............
Low--Voltage Control Connections 20............
Humidi--MiZer
R
System Control Connections 21....
Humid i--MiZer System — Space RH Con tro ller 21..
EconoMi$e r
R
X (Fact ory--Installed Option) 21......
PremierLinkt (Factory--Installed Option) 23.......
Supply Air Temperature (SAT) Sensor 26.........
Outdoor Air Temperature (OAT) Sensor 26.......
EconoMi$e r2 26.............................
Field Connections 26..........................
Space Sensors 28............................
Connect Thermostat 28.......................
Configure the Unit for Thermostat Mode 28......
Economizer Controls 29........................
Indoor Air Quality (CO
2
)Sensor 29.............
Outdoor Air Quality Sensor 29.................
Space Relative Humidity Sensor or
Humidistat Connections 30....................
Smoke Detector/Fire Shutdown (FSD) 30.........
Filter Status Switch 31........................
Supply Fan Status Switch 31...................
Remote Occupied Switch 31...................
Power Exhaust (output) 31.....................
CCN Communication Bus 31..................
RTU Open Cont roller System 33.................
Supply Air Temperature (SAT) Sensor 36.........
Outdoor Air Temperature (OAT) Sensor 36.......
EconoMi$e r2 36.............................
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