VPS Installation Under Dispenser Installation Steps
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10. Screw the 59CA-4 plug, item 4, from the kit onto the left port’s male connector. Make sure the valve’s handle
is set to connect the VPS to the vapor return line and not to the capped (ambient) port.
All plumbing’s pitch to drain should be 1/4” vertical per 12” horizontal to eliminate liquid
traps.
11. Install a cord grip from the kit into a I.S. junction box knockout. Route the VPS cable into the I.S. junction box
and tighten the cord grip. Observing polarity, connect the field wiring from the TLS console to the VPS wiring
with wire nuts (see Figure 6).
For Wireless installations skip Steps 11 - 13. The VPS sensor connects to a TLS RF
transmitter, not to field wiring from the TLS Console (see manual 577013-964 for
in
structions).
12. Seal wire nuts in epoxy sealant following the instructions in Figure 7. Push the epoxy sealed bag into the
junction box. Replace and tighten the junction box cover.
13. For TLS-450PLUS console, connect VPS field wiring to a USM module (see Figure 8). For TLS-350
Consoles, connect VPS field wiring to a Smart Sensor Module (see Figure 9).
14. Replace lower dispenser sheet metal doors onto dispensers.
15. After the VPS has been installed, pressurize the tank ullage space and vapor piping to at least 2 inches WC
and test for leaks using leak detection solution.
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