30XA
Air-Cooled Liquid Chillers
Nominal cooling capacity: 270-1670 kW
50 Hz
Contents
1 - INTRODUCTION
1.1 - Installation safety considerations
1.2 - Equipment and components under pressure
1.3 - Maintenance safety considerations
1.4 - Repair safety considerations
2 - Preliminary checks
2.1 - Check equipment received
2.2 - Moving and siting the unit
3 - dimensions, clearances
3.1 - 30XA 252-352 (standard) and 252-302 (option 254/255)
3.2 - 30XA 402-452 (standard) and 352-452 (option 254/255)
3.3 - 30XA 502 (standard and option 254/255)
3.4 - 30XA 602-802 (standard) and 602-702 (option 254/255)
3.5 - 30XA 852-902 (standard) and 752-852 (option 254/255)
3.6 - 30XA 1002 (standard) and 902-1002 (option 254/255)
3.7 - 30XA 1102-1352 (standard and option 254/255)
3.8 - 30XA 1402-1502 module 1 (standard and option 254/255)
3.9 - 30XA 1402-1502 module 2 (standard and option 254/255)
3.10 - 30XA 1702 module 1 (standard and option 254/255)
3.11 - 30XA 1702 module 2 (standard and option 254/255)
3.12 - Multiple chiller installation
4 - Physical and electrical data for 30XA units
4.1 - Physical data 30XA - Standard units and option 119***
4.2 - Physical data 30XA - Units with option 254 and 255***
4.3 - Sound levels
4.4 - Short-circuit stability current for all units
4.5 - Electrical data 30XA - Standard unit (including option 81)
4.6 - Electrical data 30XA - Option 119 (including option 81)
4.7 - Electrical data 30XA - Option 254/255 (including option 81)
4.8 - Electrical data 30XA - Option 254/255 with option 119 (including option 81)
4.9 - Compressor electrical data
4.10 - Compressor usage per circuit (A, B, C, D)
4.11 - Electrical data, optional hydronic module
5 - ELECTRICAL CONNECTION
5.1 - Power supply
5.2 - Voltage phase imbalance (%)
5.3 - Power connection/disconnect switch
5.4 - Recommended wire sections
5.5 - Power cable entry
5.6 - Field control wiring
6 - Application data
6.1 - Operating limits
6.2 - Minimum chilled water flow (units without hydronic module)
6.3 - Maximum chilled water flow (units without hydronic module)
6.4 - Variable flow evaporator
6.5 - System minimum water volume
6.6 - Maximum system water volume
6.7 - Evaporator water flow rate
6.8 - Evaporator pressure drop curve
7 - WATER CONNECTIONS
7.1 - Operating precautions
7.2 - Victaulic water connections
7.3 - Flow control
7.4 - Evaporator water box bolt tightening
7.5 - Frost protection
7.6 - Operation of two units in master/slave mode
7.7 - Pump pressure/flow rate curves
7.8 - Available static system pressure
8 - FREE-COOLING OPTION
8.1 - Characteristics
8.2 - Operating limits
8.3 - Operation
9 - Heat reclaim condenser option
9.1 - Technical data, 30XA units with heat reclaim condenser option
9.2 - Dimensions, clearances
9.3 - Condenser location
9.4 - Condenser water connections
9.5 - Operating limits for stable operation (no mode changeover)
9.6 - Operating limits for changeover between modes
9.7 - Flow control
9.8 - Heat reclaim operation
9.9 - Condenser pump selection
9.10 - Frost protection
10 - Major system co mpon ent s and op eration data
10.1 - Direct-drive twin-screw compressor with variable capacity slide valve
10.2 - Pressure vessels
10.3 - High-pressure safety switch
10.4 - Condensers
10.5 - Fans
10.6 - Electronic expansion valve (EXV)
10.7 - Moisture indicator
10.8 - Filter drier
10.9 - Sensors
11 - Options and accessories
12 - STANDARD MAINTENANCE
12.1 - Level 1 maintenance
12.2 - Level 2 maintenance
12.3 - Level 3 (or higher) maintenance
12.4 - Tightening torques for the main electrical connections
12.5 - Tightening torques for the main bolts and screws
12.6 - Condenser coil
12.7 - Evaporator maintenance
12.8 - Compressor maintenance
12.9 - Precaution for compresssor power supply bus bar connection
13 - start -up cHecklist for 30XA Liquid chillers (use for job file)
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