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Carrier Manuals
Chiller
Flotronic 30GB
Wiring, controls and troubleshooting
Carrier Flotronic 30GB Wiring, Controls And Troubleshooting
Reciprocating 075-200 50/60 hz
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Also See for Flotronic 30GB
:
User manual
(13 pages)
,
Manual
(19 pages)
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Table Of Contents
68
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of
68
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68
Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Contents
Safety Considerations
Introduction
Flotronic Control System
General
Processor Board
Typical Control Box
Input Switches
Adjustable Input Potentiometers
Configuration Header
Relay & Display Board
Thermistors
Dip Switch Assembly
Output Assignments (J5 & J6)
Printed Circuit Board Connectors
Relay Board
Thermistor Locations
Cooler Thermistor Locations
Thermistor Resistance Vs Temperature
Condenser Sensor Locations
Compressor Sensor Location
Flotron Expansion Valve View
Compressor Protection Control System (CPCS)
Accessory Board
Demand Limit Potentiometer
Operating Information
Digital Display
Operational Codes
Overload Codes
Quick Test
Unit Configuration
Thermistors and Setpoint Potentiometers
Output Relays
Configuration and Switch Check
Thermistor and Potentiometer Checkout
Output Relay Check
Condenser Fan Sequence
Capacity Control-Operating Sequence
Flotron Expansion Valve
Capacity Control Steps
Head Pressure Control
Return Temperature Peset
Standard Chilled Water Temperature Control-No Reset
Space and Outside Air Temperature Reset
Wiring Diagram Index
Legend
To Common Disconnect
Power Schematic; 30GB075, 080; 380, 400, 460, 575 Volts
Component Arrangement; 30GB075-100; All Voltages
Control Circuit Schematic; 30GB075, 080; 24, 115, 230 Volts
Control Circuit Schematic; 30GB090, 100; 24, 115, 230 Volts
Control Circuit Schematic; 30GB110, 125; 24, 115, 230 Volts
Component Arrangement; 30GB110-110; All Voltages
Power Schematic (Main Box); 30GB090, 100; 208-230 Volts
Power Schematic (Main Box); 30GB090, 100; 380, 400, 460, 575 Volts
Power Schematic (Main Box); 30GB110, 125; 208-230 Volts
Power Schematic (Auxiliary Box); 30GB110, 125; 208-230 Volts
Power Schematic (Main Box); 30GB110, 125; 380, 400 Volts
Power Schematic (Main Box); 30GB110, 125; 460, 575 Volts
Power Schematic (Auxiliary Box); 30GB110, 125; 380, 400, 460, 575 Volts
Power Schematic (Main Box); 30GB150, 175, 200; 208-230 Volts
Power Schematic (Auxiliary Box); 30GB150; 208-230 Volts
Power Schematic (Auxiliary Box); 30GB175, 200; 208-230 Volts
Power Schematic (Main Box); 30GB150, 175, 200; 380, 400, 460, 575 Volts
Power Schematic (Auxiliary Box); 30GB150; 380, 400, 460, 575 Volts
Power Schematic (Auxiliary Box); 30GB175, 200; 380, 400, 460, 575 Volts
Control Circuit Schematic; 30GB150; 24, 115, 230 Volts
Control Circuit Schematic; 30GB175; 24, 115, 230 Volts
Control Circuit Schematic; 30GB200; 24, 115, 230 Volts
Demand Limiting
Accessories and Optional Control Installation
Pulldown Control
Return Temperature Reset Option
Space and Outside Air Temperature Reset Option
Accessory Reset Board Wiring
Reset Thermistor
Space/Outside Air Thermistor Wiring Diagram
Demand Limit Control
Demand Limit Potentiometer Wiring Diagram
Remote On-Off Control and External Interlocks
Field Wiring; Remote Interlocks and Alarm
Remote Alarm
Accessory Unloaders
Hot Gas Bypass
Control Troubleshooting and Servicing
Processor Board Checkout Procedure
Check Transformer Input to Processor Board
Check Voltage Tolerance Circuitry
Check Processor Reset Line
Check Relay Board Outputs
Relay Board Connector
Flotron Expansion Valve Output
Display Board Connection Checkout
Potentiometer Connection Checkout
Switch Input Connection Checkout
Processor Board Replacement
Relay Board Troubleshooting
Display Board Checkout
Accessory Reset Board Checkout
Compressor Protection Board (CPCS)
Thermistor Troubleshooting
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Table of Contents
Troubleshooting
Hot gas bypass
62
Processor board replacement
65
Accessory reset board checkout
66
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