Carrier 48HC Installation Instructions Manual

Download Installation instructions manual of Carrier 48HC Air Conditioner, Heating System for Free or View it Online on All-Guides.com.

Brand: Carrier

Category: Air Conditioner , Heating System

Type: Installation instructions manual for Carrier 48HC

Pages: 56

Download Carrier 48HC Installation instructions manual

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48HC
Single Package Rooftop
Gas Heating/Electric Cooling Unit
with Puronr (R---410A) Refrigerant
Sizes: 04, 05, 06
Installation Instructions
NOTE: Read the entire instruction manual before starting
the installation
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2....................
INSTALLATION 6...............................
Jobsite Survey 6................................
Step 1 -- Plan for Unit Location 6..................
Roof Mount 6...............................
Step 2 -- Plan for Sequence of Unit Installation 7......
Curb--Mount Installation 7.....................
Pad--Mount Installation 7......................
Frame--Mount Installation 7....................
Step 3 -- Inspect Unit 7...........................
Step 4 -- Provide Unit Support 7...................
Roof Curb Mount 7..........................
Slab Mount (Horizontal Units Only) 7...........
Alternate Unit Support
(In Lieu of Curb or Slab Mount) 7..............
Step 5 -- Field Fabricate Ductwork 9................
Step 6 -- Rig and Place Unit 9.....................
Positioning on Curb 10.......................
Step 7 -- Convert to Horizontal & Connect Ductwork 10.
Step 8 -- Install Outside Air Hood 10...............
Economizer and Two Position Damper Hood
Package Removal and Setup Factory Option 10..
Economizer Hood and Two--Position Hood 11.....
Step 9 -- Units with Hinged Panels Only 11..........
Step 10 -- Install Flue Hood 12....................
Step 11 -- Install Gas Piping 12....................
Factory--Option Thru--Base Connections
(Gas Connections) 13.........................
Step 12 -- Install External Condensate Trap and Line 15..
Step 13 -- Make Electrical Connections 15...........
Field Power Supply 15........................
Units with Factory--Installed
Non--Fused Disconnect or HACR 16.............
Units without Factory--Installed
Non--Fused Disconnect or HACR 17.............
All Units 17................................
Convenience Outlets 18.......................
HACR 19..................................
Factory--Option Thru--Base Connections
(Electrical Connections) 19....................
Units without Thru--Base Connections 20.........
Field Control Wiring 20.......................
Thermostat 20...............................
Unit without Thru--Base Connection Kit 20.......
Heat Anticipator Settings 20...................
Humidi--MiZer
R
Control Connections 21..........
Humidi--MiZer -- Space RH Controller 21........
Low Ambient Control (Factory Option 23..........
ComfortLink Control 23........................
PremierLinkt (Factory Option) 28...............
Supply Air Temperature (SAT) Sensor 31.........
Outdoor Air Temperature (OAT) Sensor 31.......
EconoMi$er2 31.............................
Field Connections 31..........................
Space Sensors 33............................
Connect Thermostat 33.......................
Configure the Unit for Thermostat Mode 33......
Economizer Controls 34........................
Indoor Air Quality (CO
2
sensor) 34.............
Outdoor Air Quality Sensor 34.................
Space Relative Humidity Sensor or
Humidistat Connections 35....................
Smoke Detector/Fire Shutdown (FSD) 35.........
Filter Status Switch 36........................
Supply Fan Status Switch 36...................
Remote Occupied Switch 36...................
Power Exhaust (output) 36.....................
CCN Communication Bus 36..................
RTU Open Control System 38...................
Supply Air Temperature (SAT) Sensor 41.........