Carrier WeatherMaster 48HC07 Series - Page 31

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Fig. 46 — Typical 48HC ComfortLink Control Power Wiring Diagram with Optional Humidi-MiZer System

(208/230V, 460V - 3 Ph - 60 Hz shown)

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Table of Contents1
Safety Considerations1
Model Number Nomenclature and4
Dimensions4
Rated Indoor Airflow4
Pre-Installation4
Installation10
Jobsite Survey10
Step 1 - Plan for Unit Location10
- Roof Mount11
Step 2 - Plan for Sequence of Unit11
- Installation11
- Curb-Mounted Installation11
- Pad-Mounted Installation11
- Frame-Mounted Installation11
Step 3 - Inspect Unit11
Step 4 - Provide Unit Support11
- Roof Curb Mount11
- Slab Mount (Horizontal Units Only)13
- Alternate Unit Support13
Step 5 - Field Fabricate Ductwork13
Step 6 - Rig and Place Unit13
- Positioning on Curb14
Step 7 - Convert to Horizontal and Connect Ductwork (When Required)15
Step 8 - Install Outside Air Hood15
- Economizer and Two-Position Damper Hood Package Removal and Setup15
- Economizer Hood and Two-Position Hood Assembly15
Step 9 - Install Flue Hood17
Step 10 - Install Gas Piping17
- Factory Option Thru-Base Connections (Gas Connections)18
Step 11 - Install External Condensate Trap19
- And Line19
Step 12 - Make Electrical Connections20
- Field Power Supply20
- Units with Factory-Installed Non-Fused Disconnect or Hacr21
- Electrical Connections22
- Units Without Thru-Base Connections24
- Field Control Wiring24
- Thermostat24
- Humidi-Mizer ® System Control Connections25
- Typical Control Wiring Diagrams27
- Economi$Er ® X (Factory Option)36
Smoke Detectors49
- Completing Installation of Return Air49
- Smoke Sensor49
- Additional Application Data50
Staged Air Volume (SAV™) with Variable Frequency Drive (Factory Option)50
Comfortlink Control (Factory Option)50
Premierlink™ Controller (Factory Option)50
RTU Open Controller50
Controller Options50
- Low Ambient Control (Factory Option)50
Step 13 - Adjust Factory-Installed Options51
- Smoke Detectors51
- Economi$Er51
Step 14 - Install Accessories51
Step 15 - Check Belt Tension51
Pre-Start and Start-Up52
Start-Up Checklist55

Carrier WeatherMaster 48HC07 Series - Page 31

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