Wiring - Pentair 920 Series Installation, Operating And Maintenance Instructions

2.7 WIrInG

INDUSTRIAL HEAT TRACING SOLUTIONS
Step  "Hinge" the bottom of the console downwards until it is flush with the front of the control
module.
Fig. 2.3 Console installation – Step 2
Step  If the console is to be permanently installed, secure it to the control module using the
captive screw provided. It should be finger tight only. do not over-tighten the screw or damage to
the console housing may occur.
Fig. 2.4 Console installation – Step 3
To remove the console, follow the three steps outlined above in reverse order.
Wiring diagrams for typical configurations are included in Appendix C on page 68.
CAUTION:
Always verify wiring connections before applying power to the controller or connected circuits. To
avoid injury or equipment damage, do not install or remove wiring while controller power is on.
To minimize the chance of loose connections, the terminal board uses lever-operated, spring-
loaded terminals. See Appendix A on page 61 for allowable wire sizes and recommended
insulation strip lengths.
2.7.1 temperature sensor ConneCtIons
Use shielded, twisted, three-conductor wire for the extension of RTD leads. The wire size should
ensure that the maximum allowable lead resistance is not exceeded. Shields on RTD wiring should
be grounded at the controller end only, using the terminals provided.
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