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RTAC 140-400 ton units (50 HZ), RTAC 140-500 ton units (60 Hz), Series R Air-Cooled Helical Rotary Liquid Chillers
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252 pages, 20.67 Mb
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RTAC-SVX01F-EN
2230
Contents
Main
Preliminary
Important Environmental Concerns!
Responsible Refrigerant Practices!
WARN ING Contains Refrigerant!
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Literature History
Unit Identification - Nameplates
Unit Inspection
Inspection Checklist
Loose Parts Inventory
Unit Description
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Table 1 General Data 140-250 Ton 60 Hz Units - Standard Efficiency
Size 140 155 170 185 200 225 250 Type STD STD STD STD STD STD STD
Min Starting/Operating Ambient
Table 2 General Data 275- 500 Ton 60 Hz Units - Standard Efficiency
Size 275 300 350 400 450 500 Type STD STD STD STD STD STD
Table 3 General Data 140-400 Ton 60 Hz Units - High Efficiency
Table 4 General Data - 120-400 Ton 50 Hz Units-Standard Efficiency
Size 140 155 170 185 200 250 275 300 350 375 400 Type STD STD STD STD STD STD STD STD STD STD STD
Table 5 General Data - 120-400 Ton 50 Hz Units-High Efficiency
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Installation Responsibilities
Nameplates
Storage
Location Requirements
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RTAC-SVX01F-EN 31
32 RTAC-SVX01F-EN
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36 RTAC-SVX01F-EN
Isolation and Sound Emission
RTAC-SVX01F-EN 37
Noise Considerations
Table 8 Unit Isolators Tonnage Efficiency Frequency Unit Type Condenser Fin Material
Isolator Part Number
Quantity
Foundation
Clearances
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Unit Isolation and Leveling
Drainage
Evaporator Water Piping
Evaporator Piping
Use Piping Strainers!
Evaporator Water Pressure Drop RTAC 140 - 250 Ton
Evaporator Water Pressure Drop RTAC 250 - 500 Ton
Water Pressure Gauges
Water Pressure Relief Valves
Shell Damage!
To prevent shell damage, install pressure relief valves in the evaporator water system.
Freeze Protection
Low Evaporator Refrigerant Cutout and % Glycol Recommendations
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Table 9 Glycol Recommendations
Table 10 Recommended Low Evaporator Refrigerant Cutout and % Glycol
System Configuration and Interconnecting Refrigerant Piping
If the circuits are crossed, serious equipment damage may occur.
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RTAC-SVX01F-EN 53
Table 11 Liquid Line Sizes for Remote Evaporators (typical type L copper O.D.)
Line Sizing
RTAC 140-250 Ton Remote Evaporator Liquid Line Sizes
120-ton Circuit
70-ton Circuit
100-ton Circuit
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RTAC-SVX01F-EN 55
Table 13 Required Length of Field Installed Suction Accumulator
Figure 28 Liquid Line Sizing Example
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Suction Accumulator Sizing
Piping Installation Procedures
Hazardous Gas!
Refrigerant Sensors
Refrigerant Pressure Relief Valve Venting
Hazardous Gases!
Leak Test and Evacuation
Hazard of Explosion!
Refrigerant and Additional Oil Charge
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General Recommendations
Use Copper Conductors Only!
Important!
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Installer-Supplied Components
Control Power Supply
Heat Tape!
Interconnecting Wiring
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Low Voltage Wiring
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Communications Interface options
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Refrigerant R134a
Compressor
Condenser and Subcooler
Expansion Valve
Evaporator
Oil System
90 RTAC-SVX01F-EN
K E Y
Figure 35 RTAC Oil System
CH530 Communications Overview
Controls Interface
DynaView Interface
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Display Screens
Auto Stop Alarms
Front Panel Lockout Feature
Display and Touch Screen are Locked Enter Password to Unlock
Front Panel Display During Cold Ambients
Display and Touch Screen are Locked Enter 159 to Unlock
Modes Screen
Auto Stop
Modes Chiller Compressor
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Table 26 Circuit Modes Circuit Modes Description Top Level Mode Sub-modes
Table 27 Compressor Modes Compressor Modes Description Top Level Mode Sub-modes
Chiller Screen
A
uto Stop
Chiller Compressor
Modes
Refrigerant Screen
The refrigerant screen displays those aspects of the chiller related to the refrigerant circuits.
Auto Stop
Chiller Compressor Rfgt.
Table 29 Compressor Screen Description Resolution Units
Setpoint Screen
Auto Stop
Rfgt Setpoint Diagnostic
Table 31 Setpoint Screen Description Resolution or Text Units
Table 32 Setpoint Options/Conditions Displayed Option Condition(s) Explanation
Auto Stop Alarms
DiagnosticSetpointRfgt
Power-Up
Display Formats
Tec h V i ew
Minimum PC requirements to install and operate TechView
Unit View
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Compressor Service View
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Setpoint View
Setpoint Numeric Panel
Change Setpoint
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Diagnostics View
Configuration View
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Software View
Binding View
Software Download
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Installation Checklist
Electrical Wiring
Live Electrical Components!
Use Copper Conductors Only!
Information in Interconnecting Wiring!
Connections!
Use Piping Strainers!
Unit Voltage Power Supply
Unit Voltage Imbalance
Unit Voltage Phasing
Water System Flow Rates
Water System Pressure Drop
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Daily Unit Start-Up
Refrigerant!
Seasonal Unit Start-Up Procedure
System Restart After Extended Shutdown
Unit Shutdown Procedures
Temporary Shutdown And Restart
Extended Shutdown Procedure
Chilled Water Pump!
Lock the chilled water pump disconnects open, to prevent pump damage.
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RTAC Start-u
p
Test Lo
g
RTAC Unit Configuration
Setpoint View *
Compressor Service View **
Configuration ***
RTAC Chiller Log
Status View: *
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Refrigerant and Oil Charge Management
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Charge Isolation in the high or low side of system
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Refrigerant Filter Replacement Procedure
Lubrication System
Oil Charging Procedure
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Note:
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Evaporator tube replacement
Compressor Replacement
Hazardous Voltage!
Unit Wiring