5
F. Installation of IS Piston Switch(es):
1.
Install provided O-ring on piston switch. Thread the piston switch into the vent port of the
mechanical line leak detector until hand-tight.
2.
Apply a "UL Classified" (QLSR) pipe joint sealing compound (for use with petroleum products)
to the provided vent fitting and install in the open port on the side of the piston switch.
3.
Install copper tube in the fitting and vent back to tank test port of the submersible pump.
4.
Following the piston switch wiring diagram found on page 22 connect the IS wiring in the
junction box using the supplied wire nuts and di-electric grease. Use the wiring instructions
found on page 22 for the connection to the ISM-4080 control box.
5.
If the Piston Switch is to share the wire pair with a sump sensor:
•
Piston Switch and sump sensor must be installed in series
•
The sump sensor must be single point with a 100k resistor (such as Veeder Root p/n
VR794380-208)
•
Install per wiring diagram found on page 23
G. Wiring guides are located at end of this document. (Page 18)
Note:
Before applying power to the system, it is recommended that you contact VMI. Be
prepared to email some pictures of your newly installed and wired ISM-4080 System.
Summary of Contents for ISM-4080
Page 19: ...19...
Page 21: ...21...
Page 22: ...22 Piston Switch Wiring Detail Without Sump Sensor...
