Liebert XDH - page 14

Mechanical Considerations

10

4.2.1 Airflow Direction

If the Liebert XDH is installed at the end of a row, Liebert recommends using uni-directional air dif-

fusers. The uni-directional diffusers are designed to blow cooling air to the left; the diffusers can be

used for right air discharge by removing them from the Liebert XDH, turning them 180 degrees, then

reattaching them to the Liebert XDH.

If the Liebert XDH is installed between racks, Liebert recommends using bi-directional air diffusers.

These diffusers blow air right and left, as well as to the front.

Two diffusers were shipped with the Liebert XDH. If uni-directional diffusers were ordered, the dif-

fuser with the part number 186458 is designed for installation on the upper half of the Liebert XDH.

The other diffuser, for use on the lower half of the Liebert XDH, has the part number 186459. When

installed in these positions, the diffusers will direct the airflow to the left.

If directing the airflow in the opposite direction would improve cooling, the diffusers may be switched.

See Install Air Diffusers for Best Airflow Direction on page 11.

Figure 9 Liebert XDH placement in enclosure row

Hot

Aisle

Cold

Aisle

Hot

Aisle

Cold

Aisle

X

D

H

Liebert XDH

Liebert XDH

Liebert XDH

Liebert XDH

Liebert X DH

Liebert X DH

Liebert X DH

Liebert X DH

Liebert X DH

Liebert X DH

Liebert X DH

Liebert X DH

Contents

Main GENERAL SAFETY GUIDELINES Fluorinated Greenhouse Gas RequirementsEuropean Union TABLE OF CONTENTS FIGURES TAB LE S 1.0 LIEBERT XDH COMPONENT LOCATIONS AND MODEL NUMBER NOMENCLATURE Figure 1 Liebert XDH component locations Example: XDH32BK 0 XD H 32 B K 0 2.0 I 2.1 Product Description 2.2 References 2.3 Pre-Installation Checks 2.4 Parts Included With the Liebert XDH 2.5 Installation Considerations 2.5.1 Room Preparation 3.0 GENERAL PRODUCT INFORMATION 3.1 Product/ System Description 3.2 Checking and Unpacking 3.3 Equipment Inspection 3.3.1 Recyclable Packaging R 3.3.2 Unit Handling 3.3.3 Unpacking the Unit 3.3.4 Taking the Unit off the Pallet Page 4.0 MECHANICAL CONSIDERATIONS 4.1 Determining Placement in the Conditioned Space 4.2 Installing the Liebert XDH Within the Enclosure Row Page Install Air Diffusers for Best Airflow Direction 5.0 P 5.1 European Union Fluorinated Greenhouse Gas Requirements 5.2 System Connection Configuration Liebert XDP / Liebert XDC #1 Liebert XDP / Liebert XDC #2 Liebert XDP / Liebert XDC #1 Liebert XDP / Liebert XDC #2 Figure 14 Indirect system configurationhydraulic system schematic 5.3 Connection Methods and Points 5.4 Piping ConsiderationsHard-Piped Connections Detail "A" 5.4.1 Venting the Holding Charge and Connecting to Mains 7/8" Return, Lower 7/8" Return, Upper Refrigeration Circuit Rear of Liebert XDH 5.5 Connection Methods for Hard Pipe 5.6 Recommended Piping Size 5.6.1 Connecting MethodsOne-Shot Connections 5.7 Field Installation of Liebert XD Flex Pipe Kit on the Liebert XDH Straight Connection 90-Degree Connection 5.8 Connecting Liebert XD Flex Pipes to Liebert XDH Modules 5.8.1 Header System 5.9 Connecting a Liebert XDH with Liebert XD Flex Pipe to an Operational Liebert XD System Tools Required NOTICE 5.10 Disconnecting a Liebert XDH With Liebert XD Flex Pipe From a Liebert XD System NOTICE Tools Required Page 6.0 E 6.1 Connecting High Voltage Wiring 6.2 Connecting Low Voltage WiringOptional 7.0 INSTALLATION CHECKLIST AND SYSTEM FILL FOR STARTUP 7.1 Checklist for Proper Installation 7.2 Charging with Refrigerant and Starting the Liebert XD System 8.0 O 8.1 Start the Liebert XDH 9.0 M 9.1 Internal Access 9.2 Fluorinated Greenhouse Gas Requirements 9.3 Remove Fan Tray 10.0 S Table 3 Liebert XDH specifications Models Number of Fans Table 4 Liebert XD Flex Pipe assemblies, supply and return Page Ensuring The High Availability Of Mission-Critical Data And Applications. Technical Support / Service Locations