Integrated Cabinet Solutions For Business-Critical Continuity™ Knurr® DCM™ Rack User Manual
IMPORTANT SAFETY GUIDELINES SAVE THESE INSTRUCTIONS This manual contains important instructions that should be closely followed during installation and maintenance of this unit. Read all safety instructions before attempting to assemble and install the Knurr DCM. Adhere to all warnings on the unit and in this manual. Follow all instructions. Read all warnings, cautions and instructions in this before attempting to move, lift, remove packaging from or preparing unit for installation.
TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Feedback on Equipment, Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.1 Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.11 Top Cover Cable Management Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 4.11.1 Internal Cable Management Troughs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.11.2 1U Cable Routing Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 4.12 Attach Cable Management Option—Cable Fingers . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 1.0 INTRODUCTION The highly versatile Knurr DCM provide an organized, secure, controlled environment in a single system for sensitive electronic equipment. The Knurr DCM is available in three heights—24U, 42U and 45U (47", 78.5" and 83.9"; 1196mm, 1996mm and 2131mm).
Major Components 2.0 MAJOR COMPONENTS A Knurr DCM may have any or all of the components addressed in this section, depending on its configuration. 2.1 Frame The base of all Knurr DCM products is the frame. The Knurr DCM features a fully assembled, extruded aluminum frame with a patented T-slot that permits many of the cabinet’s tool-less mounting features. The racks can accommodate shelf- or rack-mounted equipment on 19-inch (483mm) adjustable rails.
Major Components To install the Side Panel Lock: 1. 2. 3. 4. 5. Figure 1 Insert a key into the lock to use as a handle. Remove the locking nut from the cylinder. Insert the lock, cam first, into the panel. The cam should be pointed to the right. Slip the nut over the cam and tighten it onto the plastic lock cylinder. Test the lock to ensure that it operates properly. Side panel lock components Keys Side Panel Lock cylinder Nut to secure Side Panel Lock to panel Side Panel Lock cam 2.
Installation 3.0 INSTALLATION 3.1 Inspection Upon receiving a Knurr DCM, examine the packaging for any signs of mishandling or damage. If any damage is noted, notify your local Liebert representative and your carrier immediately.
Installation 3.3 Unloading the Knurr DCM Before unloading a Knurr DCM, note the weight of the model (see 6.0 - Specifications. Use at least two people when moving the unit. 1. Using a pallet jack or forklift, move the Knurr DCM on its pallet to the installation location. 2. Cut the shrink wrap and remove all packaging. 3. Remove the lag bolts securing each shipping bracket to the shipping pallet; there is one bracket at each corner of the Knurr DCM; each bracket has two lag bolts (see Figure 3). 4.
Installation 3.5 Basic Hardware Installation—Nutbars and Spring Nuts The Knurr DCM is designed with T-slots on exposed faces of the aluminum frame members. These T-slots permit placing nutbars and spring nuts anywhere along a frame member to mount equipment at any distance desired (see Figure 4). Nutbars and spring nuts accept M5 and M6 screws used to attach most equipment and options to the rack’s aluminum frame members.
Installation Figure 5 Insert nutbar or spring nut Press leaf spring and slip edge into T-slot. Flip nutbar as it slides in. T-Slot in Frame This end of spring nut flips over and nut slips into T-Slot Spring nut oriented for insertion into T-Slot Nutbar in T-Slot Spring nut in T-Slot T-Slot 3.6 Frame and Enclosure Configurations 3.6.1 Internal Mounting Rails The Knurr DCM can accommodate rack-mounted or free-standing computer and network equipment. The unit features 19-inch (483mm) rack rails.
Installation 3.6.2 Front- and Rear-Mount Rails—Position and Attach Front- and rear-mount vertical rails are installed in the Knurr DCM at the factory at 29.13inches (740mm). They are secured to the 600mm Knurr DCM’s aluminum frame using threaded block nutbars in the T-slot at top and bottom of the EIA rail and M6 x 12 screws. Mechanical fasteners in are used in center of the EIA rail to tie into the center depth support member.
Installation Position Rails on 700mm and 800mm Cabinets 1. Determine the proper location of the rails. 2. Remove center support by loosening the two quick-release mechanical fasteners. Repeat for other side of the EIA rail frame (see Figure 7). 3. Loosen the four screws that secure the node brackets to the bottom frame member. Repeat on the other side of EIA rail frame. 4. Loosen the three screws that secure the top EIA rails support bracket to the top frame member.
Installation 3.7 Door—Remove and Reverse Knurr DCM doors are removable for convenience when installing or maintaining equipment. They also are reversible, so the single-door may be opened in a more convenient direction if the rack is near a wall or other equipment. Doors are supported by two hinges and held in place by gravity. They can be lifted off and reinstalled without tools.
Installation 3.7.1 Remove the Door 1. Open the door and swing it open about 90 degrees. 2. Lift the door slightly until the hinge pins clear the hinge pin caps and slide the door free (see Figure 8). Figure 8 Door hinge removal Hinge is on the Knurr DCM door. Lift the door until the hinge pins at the top and bottom clear and slide the door free. The door is held in place by gravity.
Installation 3.8 Side Panels—Remove and Replace Knurr DCM side panels are simple to remove and replace, making it easier to install equipment. Panel removal also eases maintenance and replacing equipment.
Options—Installation 4.0 OPTIONS—INSTALLATION 4.1 Anti-Tilt Kit (Part # 540254G1L) An anti-tilt kit can be installed to stablize the Knurr DCM when installing or removing equipment from the rack. The kit includes the adjustable legs and mounting hardware. The stabilizer legs attach to the front of the Knurr DCM frame. After attaching the stabilizers, pull out the metal pin at the top of a leg and extend that leg to the needed distance.
Options—Installation 4.2 1U Tool-Less Fixed Shelf Installation The 1U tool-less fixed shelf (Part # 002185000) has tabs on the front and rear that slip into square holes in the 19" rails. The shelf has a maximum load rating of 150 lb. (68kg). NOTE Do not tilt the back of the 1U tool-less fixed shelf down without securing the extensions. The extensions do not have a positive stop fixture to keep the extensions from falling out.
Options—Installation Figure 11 1U tool-less telescopic shelf installation Hang front end of telescopic slide on rail Tab hooks in slot on rear rail Telescopic slide lock - one on each slide attached to shelf Shelf installed; note notch on front edge 4.4 2U Locking Drawer Installation An optional 2U drawer (Part # 011139278) with a keyed lock is available (see Figure 12). The drawer has a static load rating of 30 lb. (13.6kg). The drawer mounts with four bolts on the rack’s front rails.
Options—Installation 4.5 Power Distribution Unit Mounting Power distribution units may be mounted multiple ways in the Knurr DCM rack.
Options—Installation 4.5.2 Full-Height PDU Mounting Brackets Three models of full-height PDU mounting brackets may be installed for a greater range of mounting options. For standard positioning of a PDU, the fixed type can be used to place a PDU in either rear corner of the rack. The inset PDU mounting bracket permits mounting a PDU nearer the side of the cabinet, essentially recovering unused space.
Options—Installation Figure 14 Full-height PDU mounting brackets Top or bottom of fixed, full-height PDU bracket. Ends are identical, permitting use on either side of the cabinet. 4" wide and 8-inch wide brackets available) Top of inset, full-height PDU bracket, 4" wide Attaches to inner face of horizontal aluminum frame member at top of rack. Top or bottom of adjustable, fullheight PDU bracket, 4" wide. Attaches to inner face of horizontal aluminum frame member at top or bottom of rack.
Options—Installation 4.7 Tool-Less Blanking Panels Tool-less blanking panels can be snapped onto the Knurr DCM 19" rails to block unused portions of the rack. Blocking the open areas enhancees airflow through the rack equipment. The blanking panels are available in 1U (Part # 010200087) and 2U (Part # 010200088). Attach the panels by snaping the tabs on the back into square holes in the 19" rails as shown in Figure 16.
Options—Installation 4.8 Cluster Configuration Two or more Knurr DCM cabinets of the same height can be connected in a cluster with the optional Cluster Kit of suite brackets and flexible dress strip (24U, Part # 539608G1; 42U, Part # 539608G2; 45U, Part # 539608G3) or with the standard, factory-installed cluster tab. The brackets put the cabinets on 24" (609.6mm) centers, which matches the size of U.S. floor tiles, enhancing integration with underfloor cooling systems.
Options—Installation 4.9 Cable Management When designing the equipment layout in the Knurr DCM, consider how cables must be run for each configuration and how cable runs affect cooling, access and operational factors, such as separating power and communication cables to reduce electromagnetic interference.
Options—Installation 4.10 Cable Access—Top Cover, Back and Base A fully removable top cover is available on Knurr DCM enclosures. These features are available: • 24U cabinets: solid, with one 4" (101.6mm) diameter hole in each corner • 42U and 45U cabinets: rectangular hole in the rear for mounting a fan or or for cabling. Four cable entry slots, supplied with grommets are also available for cabling. Slots at each side on the rear are fabricated for accepting tool-less modular busway brackets.
Options—Installation Figure 19 Dress panels along edge of cluster of Knurr DCMs Front panels on Knurr DCM cabinets Panels bolt to the top of the Knurr DCM Bracket used to connect Knurr DCM cabinets Cables can be routed lengthwise through the center unit Cables can cross front to back through the center units Three-piece Top Cover Cable Management kits for racks within a row (front and rear panels, center cable management unit): • 600 wide cabinet: Part # 537876G1 • 700 wide cabinet: Part # 537887G1 •
Options—Installation 4.11.1 Internal Cable Management Troughs Internal Cable Management Troughs may be installed to support wiring across short spans, such as when it must cross the width of the cabinet. The optional accessory mounts on the Knurr DCM’s 19" rails as shown in Figure 20. Use spring nuts, washers and screws to mount trough to rails or to the aluminum frame members.
Options—Installation 4.12 Attach Cable Management Option—Cable Fingers The Cable Fingers (Part # 010200078) option permits routing cables in the void between Knurr DCM racks in a cluster configuration. The cables can be strung through the fingers of the Cable Fingers and into an adjacent rack. A Knurr DCM will accommodate two sets of the Cable Fingers installed one above the other in a 42U or 45U cabinet. Hang the Cable Fingers on the rails by fitting the tabs into slots as shown in Figure 22.
Options—Installation To install Liebert MB mounting brackets on a row of Knurr DCM cabinets: 1. Insert the bottom of the mounting bracket through one of the two slots in the rear of the first Knurr DCM in the row. 2.
Maintenance 5.0 MAINTENANCE 5.1 Periodic Maintenance Your Knurr DCM cabinet requires no special maintenance. It should be cleaned periodically, more frequently if the air in the vicinity is not filtered for particulates. Dust should be cleaned from installed equipment according to the manufacturer’s recommendations. Clean the interior of the cabinet with a dry cloth.
Specifications 6.0 SPECIFICATIONS Figure 25 Knurr DCM model numbers D C 6 A PRODUCT D = Knurr DCM 1 1 WIDTH 6 = 23.6" (600mm) 7 = 27.6" (700mm) 8 = 31.5" (800mm) DEPTH A = 39.4" (1000mm) B = 43.3" (1100mm) C = 47.
Accessories 7.
Accessories Table 6 Accessories part numbers and descriptions (continued) Part # Description On Page 539952G1L 42U x 700mm W Vertical Blanking Panel W/cut Outs 2000mm H, Two Pieces 539957G1L 42U x 800mm W Vertical Blanking Panel w/Cutouts, 2000mm H, Two Pieces 539961G1L 45U x 700mm W Vertical Blanking Panel w/Cutouts ,2100mm H, Two Pieces 539962G1L 45U x 800mm W Vertical Blanking Panel w/Cutouts, 2100mm H, Two Pieces 542306G1L 42U x 700mm W Vertical Blanking Panel Solid, 2000mm H, Two Pieces
Accessories Table 6 Accessories part numbers and descriptions (continued) Part # Description On Page 011309347 Kit of Four Anchor Kits to Secure Cabinet to Raised Floor 540275G1L Lock Insert Kit of Two Lock Inserts and Four Keys 000784649 Handle 011399067L Side Panel Lock Set, Contains One Side Panel Lock and Two Keys 2 539608G1 24U Tool-Less Cluster Kit 20 539608G2 42U Tool-Less Cluster Kit 20 539608G3 45U Tool-Less Cluster Kit 20 011171448 1U 19" Mount Cable Routing Panel with D R
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