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Performance 48VL-A
Carrier Performance 48VL-A User Manual
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4
A09452
Fig.
3
-
-
48VL
-
-
A24-
-
36
Unit
Dime
nsi
ons
48VL
-
-
A
3
5
Table of Contents
Installation Instructions
1
Table of Contents
1
Safety Considerations
1
Introduction
2
Provide Unit Support
2
Roof Curb
2
Slab Mount
2
Field Fabricate Ductwork
3
Provide Clearances
3
Rig and Place Unit
3
Rigging/Lifting of Unit
3
Inspection
3
Unit Dimensions
4
Roof Curb Detail
6
Small/Common Curb
6
Large Curb
6
Small or Large Base Unit
6
Unit Suggested Rigging
7
Physical Data
8
Connect Condensate Drain
9
Install Gas Piping
9
Install Flue Hood
9
Maximum Gas Flow Capacity
10
Install Duct Connections
10
Configuring Units for Downflow (Vertical) Discharge
10
Sediment Trap
10
Install Electrical Connections
11
High- - Voltage Connections
11
Supply and Return Duct Opening
11
Control Voltage Connections
12
Heat Anticipator Setting
12
Special Procedures for 208- -V Operation
12
Standard Connection
12
Transformer Protection
12
Receiving and Installation
2
Check Equipment
2
Identify Unit
2
Inspect Shipment
2
Pre- -Start- -Up
13
Start- -Up
13
Check for Refrigerant Leaks
13
Check Heating Control
14
Start- -Up Heating & Make Adjustments
14
Check Gas Input
14
Adjust Gas Input
15
Check Burner Flame
15
Measure Gas Flow (Natural Gas Units)
15
Measure Manifold Pressure (Propane Units)
15
Connection Wiring Diagram
16
Ladder Wiring Diagram
17
Normal Operation
22
Airflow and Temperature Rise
22
Heating Sequence of Operation
22
Limit Switches
22
Rollout Switch
22
Start- -Up Cooling & Make Adjustments
22
Checking Cooling Control Operation
22
Checking & Adjusting Refrigerant Charge
22
Indoor Airflow and Airflow Adjustments
23
Gas Heating Fan Speed Set-Up
23
Two Cooling Fan Speeds Set-Up
23
Continuous Fan Operation
24
Cooling Sequence of Operation
24
– Color Coding for Indoor Fan Motor Leads
24
Interface Fan Board (IFB)
24
Cooling Charging Chart
25
Maintenance
48
Air Filter
48
Indoor Blower and Motor
48
To Clean the Blower Motor and Wheel
48
Induced Draft (Combustion Air) Blower Assembly
49
Flue Gas Passageways
49
Limit Switch
49
Burner Ignition
49
Main Burners
49
Removal of Gas Train
49
Outdoor Coil, Indoor Coil, & Condensate Drain Pan
49
Outdoor Fan
50
Electrical Controls and Wiring
50
Burner Rack Removed
50
Removal of Motor and Blower Wheel
50
Max Distance between Top of Fan Grille and Bottom of Fan Blade
51
Gas Input
51
Evaporator Airflow
51
Loss of Charge Switch
51
Refrigerant Circuit
51
Puron Items
51
Copeland Scroll Compressor (Puron Refrigerant)
52
Servicing Systems on Roofs with Synthetic Materials
52
Synthetic Roof Precautionary Procedure
52
Puron (R- - 410A) Refrigerant Charging
52
Troubleshooting
52
Start- -Up Checklist
52
Puronr (R- -410A) Quick Reference Guide
53
– Troubleshooting Chart
54
Start- -Up Checklist
56
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Carrier Performance 48VL-A Specifications
General
Brand
Carrier
Model
Performance 48VL-A
Category
Air Conditioner
Language
English
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