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Liebert
ITR installation manual
1
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64 pages, 2.32 Mb
Precision Cooling
For
Business-Critical Continuity™
Liebert
®
Challeng er
™
ITR
Installation Manual - Nominal Capacities 23 or 33 kW, 50 & 60Hz
Contents
Main
Page
TABLE OF CONTENTS
Page
FIGURES
TABL ES
1.0 I
1.1 System Descriptions
2.0 I
2.1 Room Preparation
2.4 Equipment Handling
2.2 Equipment Inspection
2.3 Location Considerations
2.4.1 Handling With Skid
2.4.2 Removal of Skid
Installation
4
Figure 2 Cabinet dimensions
Page
6
2.5 Piping Considerations
2.5.1 Drain Line
7
Figure 4 Piping connections for air-cooled units
8
Figure 5 Piping connections for split system fan coil units
9
Figure 6 Piping connections for water/glycol and GLYCOOL units
10
Figure 7 Piping connections for chilled water self-contained units
2.6 Electrical Connections
2.7 Balancing the Air Distribution
2.7.1 Ducted Applications
2.7.2 Plenum Installation
2.8 Checklist for Completed Installation
3.0 AIR-COOLED MODELS
3.1 Condenser Location
3.2 Electrical Connections
3.2.1 Line Voltage
3.2.2 Low Voltage
15
Figure 9 Air-cooled condensers
Table 3 Air-cooled condenser statistics
3.3 Refrigerant Piping
3.4 Fan Speed Control Systems
3.4.1 Materials Supplied
Dehydration/Leak Test
Page
3.4.3 Charging
3.5 Lee-Temp/Flood Back Head Pressure Control Systems
3.5.1 Piping
3.5.2 Materials Supplied
Dehydration/Leak Test
3.5.4 Charging
SINGLE CIRCUIT SHOWN
4.0 WATER-COOLED MODELS
4.1 Piping Considerations
4.2 Condenser
25
Figure 12 Water-cooled general arrangement
4.3 Water Regulating Valve
4.3.1 Water Regulating Valve Adjustment
4.3.2 Water Regulating Valve Manual Flushing
4.3.3 Testing Valve Function
5.0 GLYCOL/GLYCOOL-COOLED MODELS
5.1 Drycooler Location
5.2 Drycooler Installation
5.3 Electrical Connections
5.3.1 Line Voltage
5.4 Glycol Piping
5.4.1 Expansion Tanks, Fluid Relief Valves and Other Devices
5.5 Filling Instructions
5.5.1 Preparing the System for Filling
5.5.2 Glycol Solutions
5.5.3 Filling the System
32
Figure 14 Drycoolers and pump packages
33
Figure 15 Pump packagesexpansion tank
Table 15 Mounting hole dimensional data
SL-10065 PG 7B SL-10070 PG 6B
Glycol/GLYCOOL-Cooled Models
34
Figure 16 Glycol general arrangement
35
Figure 17 GLYCOOL general arrangement
5.6 Condenser
5.7 Glycol Regulating Valve
5.7.1 Glycol Regulating Valve Adjustment
5.7.2 Testing Valve Function
Chilled Water Models
6.0 CHILLED WATER MODELS
6.1 Piping Considerations
2-WAYVALVE
3-WAYVALVE
7.0 SPLIT SYSTEM MODELS
7.1 Location Considerations
7.1.1 Air-Cooled Condensing Units
7.1.2 Water/Glycol-Cooled Condensing Units
7.2 Electrical Connections
7.3 Piping Considerations
7.3.1 Refrigerant Loop
Page
41
Figure 19 Refrigerant piping diagram
Pitch down 1/2" (13mm) per 10 ft. (3m)
Table 23 Equivalent lengths (feet) for various pipe fittings
Evaporator
Condensing Unit Evaporator Condensing Unit
Suction Line Piping Condensing unit below evaporator
7.3.2 Quick Connect Fittings
43
7.4 Outdoor Air-Cooled Condensing Units
Figure 20 Outdoor air-cooled condensing unithorizontal air discharge models
C
Page
45
Figure 21 Outdoor air-cooled condensing unittop air discharge models
FOOTPRINT DIMENSIONS
Page
47
Figure 22 Electrical field connections, prop fan condensing module
SL-11081PG 8A
7.5 Centrifugal Air-Cooled Condensing Units
7.5.1 Installing the Indoor Condensing Unit
7.5.2 Ducting
50
SL-11087 PG 4
Figure 24 Centrifugal air-cooled condensing unit dimensional data
51
Figure 25 Centrifugal air-cooled condensing unit dimensional data (con't.)
Split System Models
52
Figure 26 Split systems general arrangement
AIR COOLED
WATER COOLED GLYCOL COOLED
7.6 Water and Glycol-Cooled Condensing Units
7.6.1 Piping Considerations
7.6.2 Condenser Water Requirements
7.6.3 Regulating Valve Adjustment and Testing
7.6.4 Glycol Systems
SL-11087PG 6
55
Figure 28 Water/glycol-cooled condensing unit (con't.)
DPN000228_Rev0
WATER/GLYCO L
56
8.0 R407C R
8.1 Calculating Subcooling
Example
Ensuring The High Availability Of Mission-Critical Data And Applications.
Technical Support / Service
Locations