NEC nd-20292 manual Floor Mounting the CCU, Ccu

ND-20292

CHAPTER 2

APRIL, 1990

N.Using the separately ordered CCU base panel; mount it to the wall just above the second ESE- 32E-1 CCU, ensuring that minimum space is between the base panel and the second CCU.

Install the wall mounting metal brackets as shown in Figure 200-11, using the eight locally provided fasteners.

Upper Wall Mount

Bracket

CCU Base

Panel

Lower Wall Mount

Bracket

Figure 200-11 Wall Mount2 Bracket and CCU Base f

Mount the base panel onto the lower bracket using the two screws provided with the bracket.

Using the open slots provided on the back panel of the CCU, mount the CCU to the knobs of the upper bracket and onto the base panel. Ensure the upper bracket knobs are fully seated within the open slots of the CCU. Tighten the screws from above the CCU to securely attach the CCU to the upper bracket knobs, install the two screws shown in Figure 200-12.

0.Install the top panel onto the top CCU and secure with the screws removed in step C.

NOTE: All removed front panels should be reinstalled by securing with the screws removed in step B, after the required ETU’s are installed and the system is tested. (Refer to Figure 200-14).

240.2 FLOOR MOUNTING THE CCU

NOTE:	U	L regulations			require		the	fourth		CCU
	to	always	be	mounted			to the	wall		and	is
	to	be attached			to	the other three CCUs.
	Mounting		of	the		fourth	CCU should				be
	considered			at	the beginning			to		ensure
	proper		wall		spacing		for	the	stack’s
	location.

Figure 200-12 Wall Mounting ESE-32B-1 CCU

The CCUs are designed to be wall mounted. When necessary, floor mounting can be accomplished by stacking the CCUs.

A.Place the ESE-32B-1 CCU by a wall in its permanent and safe floor location.

B.Unscrew the two screws located on the lower portion of the front panel, then remove the front panel by sliding it to the left. Place the panel and screws aside for later reinstallation.

C.Unscrew the two screws located on the top front of the CCU, then remove the top panel. Place the‘ panel and screws aside for later reinstallation.

D.When the first ESE-32E-1 CCU is to be installed, repeat step B. Remove the two screws located on the top front of the CCU, then, mount the CCU onto the ESE-32B-1 CCU.

E.Ensure that the hooks provided on the top rear of the ESE-32B-1 CCU are fully seated in the open slots on the bottom rear of the ESE-32E-1 CCU. Secure them both by using the two screws removed in step D.

F.When the second ESE-32E-1 CCU is installed, it should be attached in the same manner as the first ESE-32E-1 CCU.

G.When the third ESE-32E-1 CCU is installed, it should be attached in the same manner as the second ESE-32E-1 CCU.

H.Using the guide lines for wall mounting, mount the bracket for the third ESE-32E-1 ETU to the wall, ensuring that the CCU stack is not leaning in any direction.

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