Emerson XDCF user manual European Union Fluorinated Greenhouse Gas Requirements, Header System

Piping Connections and Piping Access Points

5.0PIPING CONNECTIONS AND PIPING ACCESS POINTS

Refer to site specific drawings for general locations of the piping connections. For Liebert XDCF con- nection locations, refer also to Figure 12.

5.1European Union Fluorinated Greenhouse Gas Requirements

Stationary air conditioning, refrigeration, heat pump equipments and stationary fire protection sys- tems in the European Community market and operating with fluorinated greenhouse gases (f-gas), such as R407C, R134a, R410A, must comply with the F-Gas Regulation: (EC) No. 842/2006 (F-gas). The regulation prohibits, among other actions, venting fluorinated greenhouse gases to the atmo- sphere.

The F-Gas Regulation requires operators to use use all measures that are technically feasible and do not entail disproportionate cost to prevent leakage of these gases, to test for leakage regularly and to recover f-gas before disposing of equipment, as well as during service and maintenance.

Refer to the full regulation for additional details.

5.2Connection Methods and Points

The assembly and connection means used for piping in the Liebert XD system are the same as those used in conventional refrigeration systems. Observe all standard practices during installation and startup to prevent damage and contamination.

Supply piping connection is 1/2" OD copper pipe, and return piping connection is 5/8" OD copper. Both supply and return fittings are one-shot connections. These fittings contain pressurized R-134a refrig- erant inside the Liebert XDCF.

! CAUTION

Risk of sudden refrigerant discharge! Can cause loss of charge and minor injury!

Do not disconnect one-shot connections after they have been connected. Disconnection will release pressurized R-134a refrigerant from the Liebert XDCF.

The Liebert XDCF has supply and return piping access on the top of each module.

5.2.1Header System

The Liebert XDCF module system requires use of the Liebert XD prefabricated piping assembly. The prefabricated piping is compatible with the Liebert XD Flex Pipe required to attach to the Liebert XDCF modules.

Figure 12 Liebert XDCF supply and return piping access points

Return Pipe

(5/8" diameter)

7-5/16"

(186mm)

3-9/16"

(90mm)

1-7/16"

Supply Pipe (37mm) (1/2" diameter)

Pipe locations and dimensions are the same for upper and lower units

For additional information, refer to the Liebert Xtreme Density System Design Manual, SL-16655.

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