18
Electrical Service
The ZIMMER
vaporizer is manufactured as an explosion proof
device suitable for hazardous locations. Do not separate the heat
exchanger to access the electrical enclosure – separating the
enclosure will void warranty!
♦ When connecting the electrical service for the ZIMMER
you will
need a circuit breaker appropriate for the application. See
Electrical Specifications in the Appendix.
♦ You will also need a disconnect switch located within sight of
the vaporizer (refer to Electrical Specification in Appendix).
♦ Select the appropriate size conductors based on the current
draw (refer to Electrical Specification in Appendix) and
conductor run distance (see reference charts below).
♦ Install metal terminal box to the ¾” MNPT seal-off to make the
wiring connections in accordance with the local electrical codes.
Ensure the terminal box is connected to seal-off before
vaporizer is mounted to wall.
Metal Terminal Box (3/4”) for 50kg/hr and Smaller models
Use a suitably certified metal terminal box for the area
classification, ATEX or IECEx certified - for Europe; or Class I,
Division 1, Group D (UL listed or equivalent) - for US and
Canada. Electrical components must be rated for 130°C
(266°F). (ASDI P/N 80895 (CLASS I DIV 1) OR 80896 (ATEX
Ex d)
Metal Terminal Box (1-1/4”) for 100kg/hr and 150kg/hr models
Ex db IIA Gb or Ex eb IIA Gb, ATEX or IECEx certified - for
Europe; or Class I, Division 1, Group D (UL listed or equivalent)
- for US and Canada. Electrical components must be rated for
130°C (266°F). (KILLARK P/N GESLT-4 or equivalent)
♦ Do not separate vaporizer sections to access the wiring. Use
conductor assembly provided.
♦ Connect the green conductor to ground. See appropriate wiring
schematic in Appendix based on your desired installation. Do
not pull on, twist, or bend the wires.
CAUTION________________________________________
When installing the metal terminal box, use an open-end wrench to
securely hold the factory provided seal-off to prevent twisting!
___________________________________________________
To Next Page
