Trane RTAC 140-500 ton units (60 Hz) User Manuals

Table of Contents

• Literature History

  7
• Unit Identification - Nameplates

  7
  • Figure 1 Typical Unit Nameplate

    7
• Unit Inspection

  8
• Inspection Checklist

  8
• Loose Parts Inventory

  8
• Unit Description

  8
  • Figure 2 Typical RTAC Unit

    9
  • Figure 3 Unit Dimensions 185-200 Ton Standard Efficiency, 60 Hz and 155, 170 Ton, High Efficiency, 50 and 60 Hz

    15
  • Figure 4 Unit Dimensions 225-250 Ton Standard Efficiency, 60 Hz and 185-200 Ton, High Efficiency, 50 and 60 Hz

    16
  • Figure 5 Unit Dimensions 225-250 Ton High Efficiency, 60 Hz

    17
  • Figure 6 Unit Dimensions 250-275 Ton Standard Efficiency, 50 Hz and 250 Ton High Efficiency, 50 Hz and 275 Ton Standard Efficiency, 60 Hz

    18
  • Figure 7 Unit Dimensions 275 Ton High Efficiency, 50 and 60 Hz; 300 Ton, Standard Efficiency, 50 and 60 Hz and 350 Ton, Standard Efficiency 60 Hz

    19
  • Figure 8 Unit Dimensions 300 Ton High Efficiency, 50 and 60 Hz

    20
  • Figure 9 Unit Dimensions 350-400 Ton Standard Efficiency, Hz and 400 Ton, Standard Efficiency, 60 Hz and 350 Ton High Efficiency, 50 and 60Hz

    21
  • Figure 10 Unit Dimensions 450-500 Ton Standard Efficiency, 60 Hz and 375-400 Ton, High Efficiency, 50 Hz and 400 Ton High Efficiency, 60 Hz

    22
  • Figure 11 Unit Dimensions of Condenser/Compressor Unit for Remote Evaporator Option

    23
  • Figure 12 Unit Dimensions for Remote Evaporator 140-170 Ton Standard Efficiency and 140 Ton High Efficiency

    24
  • Figure 13 Unit Dimensions for Remote Evaporator185-250 Ton Standard Efficiency and 155-200 Ton High Efficiency

    25
• Installation Responsibilities

  28
• Nameplates

  28
• Outdoor Unit Nameplate

  28
• Compressor Nameplate

  28
  • Storage

    29
  • General

    29
  • Location Requirements

    29
• Setting the Unit

  29
  • Figure 14 Lifting the Unit (Package and Remote) 15-21-foot Base

    29
  • Figure 15 Lifting the Unit (Package and Remote) 30-36-foot Base

    30
  • Figure 16 Lifting the Unit 39-45-foot Base

    30
  • Isolation and Sound Emission

    36
    • Figure 17 Unit Isolator Locations

      36
  • Noise Considerations

    37
  • Foundation

    38
  • Clearances

    38
    • Figure 18 Recommended Unit Clearances 15-foot bases

      38
    • Figure 19 Recommended Unit Clearances 18-21 foot bases

      39
    • Figure 20 Recommended Unit Clearances 30-45 foot bases

      39
    • Figure 21 Recommended Remote Evaporator Unit Clearances 15-30 foot bases

      40
    • Figure 22 Recommended Evaporator Clearance

      40
  • Unit Isolation and Leveling

    41
• Neoprene Isolator Installation

  41
  • Drainage

    41
  • Evaporator Water Piping

    41
  • Evaporator Piping

    41
• Entering Chilled Water Piping

  42
• Leaving Chilled Water Piping

  42
• Evaporator Drain

  42
• Evaporator Flow Switch

  42
  • Evaporator Water Pressure Drop RTAC 140 - 250 Ton

    43
    • Figure 23 Evaporator Water Pressure Drop

      43
  • Evaporator Water Pressure Drop RTAC 250 - 500 Ton

    44
    • Figure 24 Evaporator Water Pressure Drop

      44
  • Water Pressure Gauges

    45
    • Figure 25 Suggested Piping for Typical RTAC Evaporator

      45
  • Water Pressure Relief Valves

    46
  • Freeze Protection

    46
  • Low Evaporator Refrigerant Cutout and % Glycol Recommendations

    46
• Procedure

  46
• Important

  47
• Specials

  47
  • Figure 26 Remote Evaporator Installations

    51
  • Figure 27 Circuit Identification

    52
  • Line Sizing

    53
• Liquid Line Sizing Steps

  54
• Example Liquid Line Sizing

  55
  • Figure 28 Liquid Line Sizing Example

    55
• Suction Line Sizing Steps

  56
• Example Suction Line Sizing

  56
  • Suction Accumulator Sizing

    57
• Example of Suction Accumulator Line Sizing

  57
  • Piping Installation Procedures

    57
  • Refrigerant Sensors

    58
  • Refrigerant Pressure Relief Valve Venting

    58
  • Leak Test and Evacuation

    58
    • Figure 29 Remote Evaporator

      59
    • Figure 30 Field Wiring between Remote Evaporator and Condensing Unit

      60
  • Refrigerant and Additional Oil Charge

    60
• Refrigerant Charge Determination

  60
• Oil Charge Determination

  61
  • General Recommendations

    62
  • Installer-Supplied Components

    75
• Power Supply Wiring

  75
  • Figure 31 Starter Panel

    76
  • Control Power Supply

    76
• Heater Power Supply and Convenience Outlet (Packaged Units Only)

  76
  • Interconnecting Wiring

    77
• Chilled Water Flow (Pump) Interlock

  77
• Chilled Water Pump Control

  77
• Alarm and Status Relay Outputs (Programmable Relays)

  78
• Relay Assignments Using TechView

  79
  • Low Voltage Wiring

    79
• Emergency Stop

  79
• External Auto/Stop

  80
• External Circuit Lockout - Circuit #1 and Circuit #2

  80
• Ice Building Option

  80
• External Chilled Water Setpoint (ECWS) Option

  81
• External Current Limit Setpoint (ECLS) Option

  81
  • Figure 32 Wiring Examples for ECLS and ECWS

    82
• Chilled Water Reset (CWR)

  82
  • Communications Interface options

    84
• Optional Tracer Communications Interface

  84
• LonTalk Communications Interface for Chillers (LCI-C)

  84
• Refrigeration Cycle

  86
  • Figure 33 Pressure Enthalpy (P-h) diagram of RTAC chiller

    86
  • Figure 34 System Schematic

    87
  • Refrigerant R134a

    88
  • Compressor

    88
  • Condenser and Subcooler

    88
  • Expansion Valve

    89
  • Evaporator

    89
  • Oil System

    89
    • Figure 35 RTAC Oil System

      90
  • CH530 Communications Overview

    91
  • Controls Interface

    91
  • DynaView Interface

    91
    • Figure 36 DynaView

      92
• Key Functions

  92
• Radio Buttons

  92
• Spin Value Buttons

  92
• Action Buttons

  92
• Hot Links

  92
• File Folder Tabs

  92
  • Display Screens

    93
• Basic Screen Format

  93
  • Front Panel Lockout Feature

    94
  • Front Panel Display During Cold Ambients

    94
  • Modes Screen

    95
  • Chiller Screen

    101
  • Compressor Screen

    101
  • Refrigerant Screen

    102
  • Setpoint Screen

    103
• Diagnostic Screen

  104
  • Power-Up

    105
    • First Screen, Version # of the Boot, full version # displayed.

      105
    • Second Screen, Application or No Application.

      105
    • Third Screen, First screen of the Application, the Chiller Tab.

      105
  • Display Formats

    105
• Units

  105
• Languages

  105
  • Minimum PC requirements to install and operate TechView

    107
  • Unit View

    107
    • Figure 38 Unit View

      108
  • Compressor Service View

    109
  • Status View

    110
  • Setpoint View

    113
    • Figure 41 Setpoint View

      113
  • Diagnostics View

    117
    • Figure 43 Configuration View

      118
  • Software View

    122
  • Binding View

    123
• Replacing or Adding Devices

  124
  • Software Download

    124
• Instructions for First Time TechView Users

  124
• Legend to Diagnostics Table

  126
  • Installation Checklist

    137
• Receiving

  137
• Unit Location and Mounting

  137
• Unit Piping

  137
  • Electrical Wiring

    138
  • General

    139
  • Unit Voltage Power Supply

    140
  • Unit Voltage Imbalance

    141
  • Unit Voltage Phasing

    141
  • Water System Flow Rates

    142
  • Water System Pressure Drop

    142
  • CH530 Set-Up

    143
  • Daily Unit Start-Up

    144
  • General

    144
  • Seasonal Unit Start-Up Procedure

    145
  • System Restart After Extended Shutdown

    146
  • Temporary Shutdown And Restart

    147
  • Extended Shutdown Procedure

    147
• Weekly Maintenance

  149
  • Refrigerant and Oil Charge Management

    155
• R134a Field Charging Procedure

  156
• Factory (initial) Refrigerant Charging Procedure

  156
• Field Refrigerant Charging Procedure

  156
• Adding charge:

  157
  • Charge Isolation in the high or low side of system

    157
• High side charge isolation procedure:

  157
• Returning unit to running condition:

  158
• Low side charge isolation procedure:

  158
  • Refrigerant Filter Replacement Procedure

    159
  • Lubrication System

    159
  • Oil Charging Procedure

    159
    • Figure 46 Oil System Schematic

      160
• Factory (initial) Oil Charging Procedure

  161
  • Evaporator tube replacement

    163
  • Compressor Replacement

    163