Contents 3
Contents
Customer self repair ...................................................................................................................... 6
Parts only warranty service ......................................................................................................................... 6
Illustrated parts catalog ............................................................................................................... 17
Replaceable spare parts........................................................................................................................... 17
Flow meter repair .................................................................................................................................... 20
Removal and replacement procedures........................................................................................... 22
Removal and replacement procedure overview ........................................................................................... 22
Viewing the spare replacement video ........................................................................................................ 22
Customer self repair required tools ............................................................................................................ 22
Safety considerations............................................................................................................................... 24
Rack warnings and cautions ........................................................................................................... 24
Preparation procedures............................................................................................................................ 24
Powering down the MCS unit.......................................................................................................... 24
Shutting off the water ..................................................................................................................... 25
AC transfer switch ................................................................................................................................... 26
Removing the AC transfer switch ..................................................................................................... 26
Replacing the AC transfer switch ..................................................................................................... 28
Air bleeder valve..................................................................................................................................... 31
Removing the air bleeder valve ....................................................................................................... 31
Replacing the air bleeder valve ....................................................................................................... 32
Air deflector plate ................................................................................................................................... 33
Removing the air deflector plate ...................................................................................................... 33
Replacing the air deflector plate ...................................................................................................... 34
Air sealing plate...................................................................................................................................... 34
Removing the air sealing plate ........................................................................................................ 35
Replacing the air sealing plate ........................................................................................................ 36
Automatic door release ............................................................................................................................ 38
Removing the front automatic door release........................................................................................ 38
Replacing the front automatic door release ....................................................................................... 39
Removing the rear automatic door release ........................................................................................ 41
Replacing the rear automatic door release........................................................................................ 42
Bottom fan unit........................................................................................................................................ 44
Removing the bottom fan unit .......................................................................................................... 44
Replacing the bottom fan unit.......................................................................................................... 45
Condensation pump and sensors............................................................................................................... 47
Removing the condensation pump and sensors .................................................................................. 47
Replacing the condensation pump and sensors.................................................................................. 49
Fan unit ................................................................................................................................................. 50
Removing the fan unit..................................................................................................................... 51
Replacing the fan unit .................................................................................................................... 52
Flow meter sensor ................................................................................................................................... 54
Removing the flow meter paddle-wheel sensor................................................................................... 54
Replacing the flow meter paddle-wheel sensor................................................................................... 57
Heat exchanger unit (HEX) with coupler ..................................................................................................... 59
Removing the heat exchanger unit with couplers................................................................................ 59
