Fig. 5 Remove the shipping blocks
REMOVE
REFRIGERATION
Refrigeration piping connections for the 3NDML-NRG case
are made at the front-right area of the case, fully visible in
front of the fan plenum.
If hot gas defrost is utilized, suction lines to each case in
the circuit should be of equal distance from the main suc-
tion line. The expansion valve and other controls - located
on the left-hand side of the case - are accessible by lifting
the two left-hand deck pans (lifting the fan plenum is not
required).
Before operating the case, be certain to remove the ship-
ping blocks (Fig. 5) that protect the refrigeration lines dur-
ing shipping. If it becomes necessary to penetrate the case
tank in any area, be certain to seal any open gaps after-
wards with canned-foam sealant and white RTV.
CASE CONNECTIONS
ATTENTION!
If brazing is necessary, place wet rags
around the area to avoid tank damage.
ATTENTION!
Be certain that all piping and electrical
connections comply with local codes.
Fig. 7 Junction box beneath case
PLUMBING
The drain outlet is specially molded out of PVC material
and is located in the front-center of the case for convenient
access. The “P” trap, furnished with the case, is construct-
ed of schedule 40 PVC pipe (Fig. 6). Care should be given
to ensure that all connections are water-tight and sealed
with the appropriate PVC or ABS cement.
The drain lines can be run left or right of the tee with the
proper pitch to satisfy local drainage requirements. Since
the kickplate is shipped loose with the case, you should
have open access to the drain line area during installation.
If the kickplate has been installed, you will find it very easy
to remove. Simply remove the screws and pull the kick-
plate away from the case (
see
Trim Out
section
).
ELECTRICAL
Electrical hookups are made to a junction box located at
the bottom-front-left of the case (Fig. 7).
For case-to-case wiring, run conduit between the junction
boxes or run wiring through the raceway. When connecting
to the junction box on the bottom-left side of the case, field
wiring should exit box from the right side (furthest away
from case wiring) to allow more room inside for wiring con-
nections.
For more detailed electrical wiring information,
see
Appendix B
.
Fig. 6 "P" trap
"P"
TRAP
ATTENTION!
Connections are illustrated in dimensional
drawings found in
Appendix A
.
5
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