Replacement Instructions for the Condensation Pump and Sensors HP Modular Cooling System

ManualsBrandsHP ManualsComputer AccessoriesHP Modular Cooling System G2 Rack

Replacement Instructions

for the Condensation

Pump and Sensors

HP Modular Cooling System

About this document

This document describes the procedure for replacing the

condensation pump and sensors of an HP Modular Cooling

System (MCS).

Customers who order a replacement condensation pump and

sensors are supplied with a kit that contains the spare

condensation pump and sensors. To replace the original

condensation pump and sensors, remove it from the MCS unit

and replace it with the new condensation pump and sensors

as described in the following instructions.

HP Modular Cooling System Spare

Replacement video

Because of the difficulty of removing and replacing spare

parts, HP recommends watching the HP Modular Cooling

System Spare Replacement video. This video provides further

explanation and detail of replacement strategies and

techniques that might be helpful when attempting to remove

and replace spare parts. You can access the video on the HP

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

Before you begin

WARNING: To reduce the risk of electric shock or

damage to the equipment, power off the MCS unit

by disconnectin

the two AC power cords connected

to the power inlet box at the rear of the MCS unit

before beginning the removal and replacement

procedures.

The information contained herein is subject to change without notice. The only

warranties for HP products and services are set forth in the express warranty

statements accompanying such products and services. Nothing herein should

be construed as constituting an additional warranty. HP shall not be liable for

technical or editorial errors or omissions contained herein.

Part Number 403356-002

April 2007 (Second Edition)

Summary of content (7 pages)

PAGE 1
Replacement Instructions for the Condensation Pump and Sensors HP Modular Cooling System About this document This document describes the procedure for replacing the condensation pump and sensors of an HP Modular Cooling System (MCS). Customers who order a replacement condensation pump and sensors are supplied with a kit that contains the spare condensation pump and sensors.
PAGE 2
CAUTION: To reduce the risk of the servers overheating, open all of the rack doors of each rack attached to the MCS unit while completing the following procedures to increase air flow within the rack. 5. Disconnect the network cable from the RJ-45 connector on the power inlet box. Powering down the MCS unit 1. Open the front MCS door. 2. Turn off the AC1 and AC2 breakers on the AC transfer switch. 3. Open the rear MCS door.
PAGE 3
. Loosen the two thumbscrews on the bottom of the fan unit. CAUTION: The fan unit weighs 16.8 kg (37 lb). Use extra caution when removing and replacing the top fan unit because it might be higher than your shoulders and is heavy and awkward to lift. 4. b. Lift the right side of the bracket up at a slant, and pull the bracket out of the MCS unit (2). IMPORTANT: Do not disconnect any of the internal electrical connections to the power inlet box. 3. Pull the power inlet box toward you until it stops.
PAGE 4
Removing the air deflector plate 1. Loosen the two thumbscrews securing the air deflector plate to the MCS unit. 2. Disconnect the green and yellow ground bonding wire. 3. Lift the air deflector plate up, tilt it to an angle, and pull it out toward you. 2. Disconnect the two sensor connections from the condensation pump. 3. Loosen the thumbscrew on the bottom of the condensation pump securing the condensation pump to the MCS unit (1), and lift the condensation pump from the MCS unit (2).
PAGE 5
Replacing the condensation pump and sensors 1. 3. Secure the air deflector plate to the MCS unit by tightening the two thumbscrews in the two screw holes. Align the condensation pump thumbscrew to the hole inside the MCS unit (1), and tighten the thumbscrew on the bottom of the condensation pump to secure it to the MCS unit (2). Relocating the power inlet box back into position 2. Connect the two sensor connectors to the condensation pump. 3. Connect the AC power cable to the condensation pump. 1.
PAGE 6
a. Lift the right side of the bracket up at a slant, and 3. Tighten the two thumbscrews to secure the fan unit to the MCS frame. 4. Using a T-25 Torx driver, secure the horizontal shipping bracket to the MCS unit by inserting four Torx screws. slide the bracket into the MCS unit. b. Tighten the four thumbscrews to secure the outer bracket to the MCS unit. 4. Connect the green and yellow ground bonding wire to ground the outer support bracket to the MCS unit. Replacing the bottom fan unit 1.
PAGE 7
c. Connect the two AC power cables to the power connectors on the power inlet box. d. Open the front MCS door. e. Turn on the AC1 breaker on the AC transfer switch. f. Turn on the AC2 breaker on the AC transfer switch. 2. Clear all old logs from the web interface to ensure that any additional alarms are current. 3. Confirm that no additional warning or alarm messages have been detected by looking at the operator display.