Sterlco AquaSnap 30RA055 Manuals

Manuals and User Guides for Sterlco AquaSnap 30RA055. We have 1 Sterlco AquaSnap 30RA055 manual available for free PDF download: Operation And Service Manual

Sterlco AquaSnap 30RA055 Operation And Service Manual

Sterlco AquaSnap 30RA055 Operation And Service Manual (100 pages)

Air-Cooled Chillers with ComfortLink Controls 50/60 Hz

Brand: Sterlco | Category: Chiller | Size: 10 MB

Table of Contents

Safety Considerations
1
Table of Contents
2
General
3
Major System Components
3
Main Base Board (MBB)
3
Scrolling Marquee Display
3
Energy Management Module (EMM)
3
Enable/Off/Remote Contact Switch
3
Emergency On/Off Switch
3
Board Addresses
3
Control Module Communication
3
Sterlco Comfort Network Interface
3
Operating Data
4
Sensors
4
Energy Management Module
17
Loss-Of-Cooler Flow Protection
17
Thermostatic Expansion Valves (TXV)
17
Capacity Control
17
- Minutes off Time
  20
- Lead/Lag Determination
  20
- Capacity Control Overrides
  20
- Deadband Example
  20
- Normal Control
  21
- Fan Relay
  21
Head Pressure Control
21
Operation of Machine Based on Control Method and Cooling Set Point Selection Settings
22
Cooling Set Point Select
22
Marquee Display Usage
23
Service Test
23
Optional Factory-Installed Hydronic Package
24
Cooler Pump Control
24
Cooler Pump Sequence of Operation
24
Configuring and Operating Dual Chiller Control
26
Temperature Reset
43
Demand Limit
44
Cooling Set Point (4 to 20 Ma)
45
- Protection
  46
Troubleshooting
46
Complete Unit Stoppage and Restart
46
Alarms and Alerts
53
Electric Shock Hazard
58
Service
58
Electronic Components
58
- Control Components
  58
Compressor Replacement
58
Cooler
58
- Brazed-Plate Cooler Heat Exchanger Cleaning
  58
- Brazed-Plate Cooler Heat Exchanger
  58
Check Oil Charge
60
Condenser Section and Coils
60
- Coil Cleaning
  60
- Cleaning E-Coated Coils
  60
- Condenser Section
  60
- Check Refrigerant Feed Components
  61
- Thermostatic Expansion Valve (Txv)
  61
- Filter Drier
  61
- Moisture-Liquid Indicator
  61
- Minimum Load Valve
  61
- Pressure Relief Devices
  62
Compressor and Unit Protective Devices
62
- Manual Starter
  62
- Compressor Internal Thermal Protection
  62
Check Unit Safeties
62
- High-Pressure Switch
  62
- Pressure Transducers
  62
- Cooler Freeze-Up Protection
  63
- Heater Cable
  63
- Winter Shutdown
  63
Thermistors
63
Pressure Transducers
63
Flow Sensor
63
- Installation
  68
Strainer
68
Motormaster® V Controller
68
- General Operation
  68
- Set Points
  68
- Programming
  69
- Epm Chip
  69
- Liquid Line Pressure Set Point Adjustment
  69
- Loss of Scn Communications
  69
  - Fault Code
    71
  - Program Selection
    71
- Replacing Defective Modules
  73
- Replacement Part
  73
- Pump Modifications and Impeller Trimming
  73
Hydronic Package
73
Maintenance
74
Recommended Maintenance Schedule
74
Pre-Start-Up
74
System Check
74
Start-Up and Operation
74
Actual Start-Up
74
Check Refrigerant Charge
75
Operating Limitations
75
- Temperatures
  75
- Voltage - All Units
  76
Operation Sequence
76
APPENDIX Ascn Tables
77
- Starters
  89
- Starters
  90
Appendix B - Factory Settings for
90
Appendix C - Building Interface
91
Project Information
93
Start-Up Checklist for 30Ra Liquid Chiller
93
- Unit Start-Up
  94
- Operating Data
  95
- Record Configuration Settings
  97
- Component Test
  100

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