Trane SCWMN070 Manuals

Manuals and User Guides for Trane SCWMN070. We have 1 Trane SCWMN070 manual available for free PDF download: Installation, Operation And Maintenance Manual

Trane SCWMN070 Installation, Operation And Maintenance Manual

Trane SCWMN070 Installation, Operation And Maintenance Manual (84 pages)

Modular Self-Contained 40 to 80 Tons

Brand: Trane | Category: Industrial Equipment | Size: 10 MB

Table of Contents

Table of Contents
4
Overview

7
- R-410A Compressors
  7
- Modular Self-Contained Unit Components
  7
Model Number Descriptions

9
- Modular Self Contained
  9
General Data

10
Pre-Installation

13
- Receiving
  13
  - Receiving Checklist
    13
  - Ship-Separate Accessories
    13
  - Contractor Installation Responsibilities
    13
  - Unit Inspection
    13
  - Exterior Inspection
    13
  - Inspection for Concealed Damage
    14
  - Repair
    14
  - Unpacking
    14
Dimensional Data

15
- Service Clearances
  20
Weights

21
Installation - Mechanical

23
- Unit Handling
  23
- Installation Preparation
  23
- Unit Vibration Isolator Option (Isopads)
  23
- Typical Unit Layout
  24
- Installation Summary
  25
- Refrigerant System
  28
  - Interconnecting Piping
    29
  - Preliminary Refrigerant Charging
    29
  - Charging and Wiring the Unit
    30
  - Fan Installation
    32
- Duct Connections
  33
  - Final Installation
    34
  - Electrical Installation
    35
  - TD7 Installation
    35
Installation - Electrical

36
- Unit Wiring Diagrams
  36
- Supply Power Wiring
  36
  - Voltage Range
    36
  - Voltage Imbalance
    36
  - Phase Monitor
    36
  - Control Power
    36
- Selection Procedures
  37
  - Determination of Minimum Circuit Ampacity (MCA)
    37
- Static Pressure Transducer Installation (VAV Units Only)
  40
  - Transducer Location
    40
  - Installing the Transducer
    40
- Zone Sensor Options for Control Units
  41
  - Zone Temperature Sensor, BAYSENS077 (Standard on All Units)
    41
- Zone Sensor Installation
  41
  - Mounting Location
    42
  - Mounting the Subbase
    42
  - Wiring
    42
  - Standard Remote Sensor (BAYSENS077)
    42
Operating Principles

43
- Control Sequences of Operation
  43
  - Occupied/Unoccupied Switching
    43
  - Compressor Lead/Lag
    43
  - Emergency Stop Input
    43
  - Water Flow Control
    43
  - Head Pressure Control
    43
  - Water Purge
    43
  - Supply Air Static Pressure Limit
    43
- Supply Air Temperature Control Unit Se
  43
- Fan Operation
  44
- Compressors
  44
  - Compressor Oil
    44
  - High Pressure Cutout Switch (HPC)
    44
  - Compressor Input/Output Module
    44
  - Compressor Pressure Sensors
    44
  - Compressor Suction Temperature
    44
  - Fixed Speed Compressor (FS)
    45
  - Compressor Safety Circuit
    45
  - Variable Speed Compressor (VS)
    45
  - Compressor Limit Conditions
    45
  - Compressor Staging
    47
  - Compressor Control
    47
- Waterside Components
  47
  - Water Purge
    47
  - Water Piping Options
    47
  - Basic Water Piping
    47
  - Water Regulating Valve (WRV) Optional
    47
  - Water Flow Switch Option
    48
  - Waterside Economizer Option
    48
  - High Duct Temperature Thermostat
    48
  - Dirty Air Filter Sensor Option
    48
  - Supply Air Static Pressure Limit
    48
Controls

49
- Unit Controller
  49
  - TD7 Home Screen
    52
  - Unit Status Report
    53
  - All Points Report
    53
- Starting the Unit
  53
  - Local Auto/Stop Value
    53
  - Setpoint Adjustments
    54
  - Compressor Alarms
    57
  - Fan Alarms
    57
  - General Alarms
    57
- Water Purge
  57
Pre-Startup

58
- Pre-Startup Checklist
  58
- Supply Fan
  58
- Ductwork
  58
- Water-Cooled Unit Piping
  58
- Units with Hydronic Heat
  58
- Electrical
  58
- Components
  58
Startup

59
- Final Refrigerant Charge
  59
- Startup Procedure
  59
  - Operating & Programming Instructions
    60
  - Startup Log
    60
Maintenance

61
- Service Access
  61
- Air Filters
  61
- Inspecting and Cleaning the Drain Pan
  62
- Compressors
  62
  - Scroll Compressor Failure Diagnosis and Replacement
    62
- Refrigerant System
  62
  - Refrigerant Leak Test Procedure
    62
  - System Repair
    63
  - Brazing Procedures
    63
  - System Evacuation Procedures
    64
  - Standing Vacuum Test
    64
- Compressors
  65
- Components
  65
  - Cleaning Coil Fin
    65
  - Inspecting and Cleaning Coils
    66
  - Hot Water Coils
    66
  - Refrigerant Coils
    67
  - Draining the Waterside Economizer Coil
    67
  - Chemically Cleaning the Condenser
    67
- Sequence of Operations
  68
  - Start
    68
  - Stop
    68
  - Useful Information on CIP (Clean in Place)
    68
  - Chemical Cleaning Economizer Coil
    69
  - Piping Components
    69
  - Flow Switch
    69
- Maintenance Periodic Checklists
  69
  - Monthly Checklist
    69
  - Annual Maintenance
    70
Diagnostics

71
- Troubleshooting
  71
  - System Checks
    71
  - Operating Procedures
    71
  - Voltage Imbalance
    71

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