Varec 2920, Installation And Operation Manual, Page: 21 / 194

2 Installation
Varec, Inc. 11
Correct Sealing of the Junction Box Covers
The 2920 float and tape transmitter housing has been designed and tested for NEMA 4 & IP66.
However, the covers must be correctly installed and tightened to maintain the seal. Note that
the junction box o-ring must be properly seated around the small boss. Review the above
images shown, which show the o-ring both properly and improperly seated. If improperly
seated, it can leave a gap or bulge out, which will cause leaks.
Above:
O-ring correctly seated at the base.
Right:
The cover is properly sealed.
Above:
O-ring not correctly seated.
Right:
The O-ring bulges after the cover is
attached, thereby causing a gap and preventing
a proper seal.