GE Industrial Solutions GE ZENITH SERIES MDU - Manual (Page 7)

Installation Procedures
GE Z ENITH C ONTROLS
MDU Owner’s Manual
601 S HILOH R OAD January 2013
Plano, TX 75074 Page 7
3.0 Installation Procedures
The following section of your owner’s/operator’s manual covers the general requirements for the installation
of your Monitored Distribution Unit and its associated components.
Note: A GE authorized field engineer and/or a licensed electrician must install each unit. Startup by a
GE certified technician is also required to validate the warranty.
3.1. Equipment placement
The preferred location of your MDU is in the center of the room. Although this location is not
mandatory, it will allow accessibility for preventative maintenance (PM) checks and any other
required services. Follow the National Electrical Code (NEC) and local electrical codes for panel board
clearance requirements. The MDU is intended for indoor installation in an area with ambient
temperatures of 32F to 104F (OC to 40C) with a relative humidity of 0% to 95% (non-condensing).
3.1.1. Clearances
Refer to the MDU shop drawings/submittals for recommended minimum service
clearances. The NEC requires the indicated front and rear clearances for service access
(see Drawings section for typical clearances). Clearance above the unit is required for
cooling airflow (exhaust). Units with optional side cars with the distribution section also
require service access clearance on the side. A MDU produces heat under normal
operation. Figure 1 shows typical MDU weights and heat generation.
Figure 1: MDU Approximate Weights and Heat Generation
MDU
Ratin
g
(kVA)
Output
Heat
(kBTU)
Full Load
Amperage
MDU Weight (Lbs)
208V
Input
480V
Input
600V
Input
Without
Sidecar
w/ (1)
9”-
Sidecar
w/ (2)
9”-
Sidecars
w/ (1)
21”-
Sidecar
w/ (2)
21”-
Sidecars
15 2.7 42 18 14 574 724 874 824 1074
30 4.8 83 36 29 945 1095 1245 1195 1445
50 7.1 139 60 48 1302 1452 1602 1552 1802
75 7.6 208 90 72 1470 1620 1770 1720 1970
100 8.4 278 120 96 1785 1935 2085 2035 2285
125 10.4 347 150 120 1855 2005 2155 2105 2355
150 12.2 416 180 144 1967 2117 2267 2217 2467
200 15.6 555 241 192 2149 2299 2449 2399 2649
225 17.6 625 271 217 2457 2607 2757 2707 2957
300 21.0 833 361 289 3297 3447 3597 3547 3797
400 34.6 N/A 481 384 2900 N/A N/A 3150 3400
500 43.3 N/A 601 481 3900 N/A N/A 4150 4400
625 54.1 N/A 752 602 4489 N/A N/A 4739 4989
750 64.9 N/A 903 721 5390 N/A N/A 5640 5890
Note: Weights listed are for MDU’s with k-20 transformers and no sidecars. For k-1 weight,
multiply 0.72. For k-13 weights, multiply by 1.12. Weights are for estimate purposes
only. Actual shipping weight may vary.