Cooper Bussmann 858 - Manual (Page 14)

DOCUMENT 1025
REV. H
Instruction Manual
AGS-LED
858 LED Series
Sizes 1, 2, 3, 4 and 5
5
Isolation Transformer should be placed on a brick in order to isolate the transformer from direct
contact with metal. The Series Isolation Transformer secondary cable should then be inserted from
inside the housing up the conduit elbow. Using the two 40762 retainers supplied with the sign (looks
like a cupped washer with a slot), placing one below the secondary cable receptacle (L-823 Style 8,
looks like a ball), and one above. The bottom cupped washer sits on the conduit elbow top inside the
threaded conduit coupling and prevents the secondary cable from dropping back down the conduit.
The top cupped washer prevents the secondary cable from being pulled out of the ground allowing the
sign power cord to disconnect if the sign is impacted and shears off at its frangible couplings. If a
consolidating harness is used or a secondary cable extension (use electrical tape around connection) is
required, use the 25003 (split clamp with screws and hex nuts) retainer supplied with the sign. Secure
this retainer, flat side down away from sign, around the secondary end (L-823 Style 7, looks like a
straight tube) that will exit the conduit elbow. The top of the secondary receptacle should be at least
¼ inch below the conduit elbow threaded coupling top surface.
WARNING:
IMPORTANT Check the sign for shipping damage upon arrival and in all cases,
check for damage prior to installation.
h. Lower the sign with the legs and flanges into place. Plug the sign power cable plug into the secondary
receptacle inside the conduit elbow while lowering. Check the sign itself with a long carpenter’s
level to be sure it is level. As an alternate, remove the floor flanges and frangible couplings from the
sign, unscrewing the frangible couplings from the floor flanges. Install the floor flanges onto the sign
anchor bolts. Level the floor flanges for ease of installation of the sign. A long carpenter’s level can
be placed across the top of the floor flanges to be sure they are all in line and level. Do not tighten the
anchor nuts tight (only finger-tight) until the frangible couplings are installed back into to floor
flanges. Note: Some vertical adjustments can be obtained by rotating the floor flanges a turn or
two on the frangible coupling.
i. Make sure all flanges are in full contact and sit flush on the pad before tightening the anchor bolts.
Shim and grout as required. Once the sign has been leveled, attach the sign tether to the closest
anchor bolt and tighten all the anchor nuts securely. (Note: Anchor hardware is not supplied with the
sign.) Anchor hardware should be corrosion resistant. The sign body must not be bent or distorted due
to an uneven installation procedure. Install a bare #14 AWG minimum copper ground wire to the
sign ground stud (stud located on sign bottom extrusion exterior and accepts #4 through #14 AWG)
and the other end to the grounding rod clamp.
j. The sign is shipped set for a Ferro-resonant Type L-828 Regulator as illustrated in Table 1. For other
Regulator types, set sign power supply circuit card jumper according to Table 2.
k. Return power to series circuit and verify sign illuminates through all Regulator brightness steps.