Installation Instructions

Consider installing the following additional components:

• Ball valves—Install ball valves between the connection of the

water hoses and the facility water supply to enable you to

easily turn off the facility water to the MCS G2 unit for any

reason. If you do not install ball valves, water will drain from

the facility piping when you disconnect the hose.

• Filter and bypass—Install a filter to aid in the quality of water

entering the MCS G2 unit. Install a bypass for the filter to aid in

the operation and cooling of your equipment.

• Pressure reducing valve—Install a pressure reducing valve if the

pressure of your MCS G2 unit is over the maximum operating

pressure of the MCS G2 , approximately 100 psi (6.9 bar).

For more recommendations and installation examples, see the HP

Modular Cooling System G2 Site Preparation User Guide on the HP

website (http://www.hp.com/go/rackandpower

Orientation of the hose

The hoses have swivel nuts on both ends, making it difficult to

differentiate which end connects to the MCS G2 and which end

connects to your facility water. Mechanically, you can connect either

end to either location.

For easy installation, connect the end with the clam shell to your

facility.

Removing the cap from the T-fitting

on the MCS G2 unit

Determine if you are going to install the main hoses up through a

hole in your raised floor or if the hoses will lie on top of your floor.

• If you are going to route your hoses through a hole in a raised

floor, use the cap wrench to remove the cap from the bottom

legs of the T-fittings, and be sure the caps are secure on the

side of the T-fittings.

• If you are going to lay your hoses across the top of the floor,

use the cap wrench to remove the cap from the side arms of the

T-fittings, and be sure the caps are secure on the bottom of the

T-fittings.

Attaching the main hoses to the

MCS G2 unit

1. Attach the main hoses to the appropriate side of the T-fitting on

the MCS G2 unit, and hand tighten.

Callout Component Function

Main water hose-

Inlet

Brings cold water in to the MCS

G2 unit

Main water hose-

Outlet

Removes hot water from the

MCS G2 unit