Liebert CW051, CW076, CW041, CW146, CW038 User Manual
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LIEBERT
EC FAN LOWERING PROCEDURE & BLOCK OFF PANEL KIT INSTALLATION
DOWNFLOW MODELS WITH EC FANS
WARNING
DISCONNECT ALL LOCAL AND REMOTE ELECTRIC POWER SUPPLIES AND VERIFY THAT FAN BLADES HAVE STOPPED
ROTATING BEFORE WORKING WITHIN.
-RISK OF ELECTRIC SHOCK AND HIGH SPEED ROTATING FAN BLADES! CAN CAUSE INJURY OR DEATH!
WARNING
MODULES BEFORE REMOVING MOUNTING HARDWARE. USE CAUTION TO KEEP BODY PARTS OUT OF THE FAN MODULES
PATHWAY OF MOVEMENT DURING REPOSITIONING. ONLY QUALIFIED PERSONNEL SHOULD WORK ON THIS EQUIPMENT.
LIEBERT CW041 UNIT SHOWN WITH LIEBERT 24" FLOORSTAND. CUSTOMER UNIT MAY
APPEAR DIFFERENT. READ USER MANUAL AND INSTRUCTION SHEET
195788 BEFORE RE-POSITIONING THE FAN MODULES.
- RISK OF FAN MODULES DROPPING DOWNWARD SUDDENLY! CAN CAUSE INJURY OR DEATH! SUPPORT FAN
1
2
1
B B
SECTION
3
NOT SHOWN
3
DETAIL A
JACK LOCATION
TABS
3
SECTION
NOT SHOWN
TOOLS NEEDED: 1/2" HEX SOCKET & WRENCH
FACTORY SUPPLIED JACK, CRANK
AND JACK SUPPORT
CABLE TIE CUTTER
LOWERING PROCEDURE (24" FLOOR HEIGHT MINIMUM):
1. REMOVE THE MIDDLE AND BOTTOM PANELS
FROM THE FRONT OF THE UNIT.
A
DPN002037
5
"Z" BRACKET
4
SECTION B-B
TOP VIEW OF FAN DECK
FAN DECK
"Z" BRACKET
LOCATION ON
CW026 - CW060
5
"Z" BRACKET
LOCATION ON
CW076 - CW114
WIRING LOOP
PAGE 1 OF 3
2. FOR EASE OF FAN LOWERING, REMOVAL OF
THE HUMIDIFIER PAN IS RECOMMENDED.
3. POSITION THE FACTORY SUPPLIED JACK AND
JACK SUPPORT UNDER THE FAN MODULE TO
BE LOWERED. USING THE CRANK, RAISE THE
JACK TO SAFELY SUPPORT THE FAN BEFORE
REMOVING ANY HARDWARE.
NOTE: A PROPERLY POSITIONED JACK WILL BE
CENTERED BETWEEN THE FIRST AND SECOND
SET OF TABS ON THE JACK SUPPORT.
4. CUT & REMOVE THE CABLE TIE THAT RETAINS
THE WIRING LOOP TO THE BLOWER MOUNTING
PLATE. ALL OTHER CABLE TIES THAT ROUTE
THE FAN WIRING SHOULD REMAIN INTACT.
5. REMOVE THE SIX HEX-HEAD SCREWS AND
"Z" BRACKETS USING A 1/2" HEX SOCKET OR
WRENCH. RETAIN HARDWARE FOR LATER STEPS.
"Z" BRACKETS NOT PRESENT ON LIEBERT DS,
CW146 AND CW181.
REV 7/10
REV 5
C C
6
7
SECTION C-C
FAN DECK AND SIDE PANELS
NOT SHOWN IN THIS VIEW
FAN MODULE
6
RESTING ON FRAME
7
"Z" BRACKETS
6
6. USING THE FACTORY SUPPLIED JACK
AND CRANK, LOWER THE FAN MODULE
UNTIL IT RESTS ON THE FRAME OF THE UNIT.
USE CAUTION TO PREVENT DAMAGE
TO THE FAN WIRE HARNESS.
7. CW026, CW038, CW041, CW076 THRU CW114 MODELS:
USING THE HARDWARE REMOVED IN STEP 5,
RE-INSTALL "Z" BRACKETS WITH HEX-HEAD
SCREWS TO RETAIN FAN MODULE IN THE FULLY
LOWERED POSITION.
CW051 AND CW060 MODELS:
USE THE HEX-HEAD SCREWS REMOVED IN
STEP 5 TO SECURE THE FAN MODULE DIRECTLY
TO THE CENTER FRAME SUPPORT. SCREW
CLEARANCE HOLES ARE PROVIDED IN THE FAN
MODULE. THE "Z" BRACKETS WILL ONLY BE USED
TO SECURE THE FAN AT THE OUTTER
ATTACHMENT POINT.
LIEBERT DS, CW146 AND CW181 MODELS:
USE THE HEX HEAD SCREWS REMOVED IN STEP 5
TO SECURE THE FAN MODULE DIRECTLY TO
THE FRAME. SCREW CLEARANCE HOLES ARE
PROVIDED IN THE FAN MODULE.
DPN002037
PAGE 2 OF 3
NOTE: NOT ALL HARDWARE REMOVED IN STEP 5 WILL
BE USED TO RETAIN FANS IN LOWERED POSITION.
8. REPEAT STEPS 3-7 TO LOWER REMAINING FAN
MODULE(S) IF PRESENT.
NOTE: THE FANS MUST BE OPERATED IN EITHER
THE FULLY RAISED POSITION OR FULLY LOWERED
POSITION. NO OTHER COMBINATION OF FAN
POSITIONING IS SUPPORTED.
REV 7/10
REV 5
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