5
WIRING
Modules
The wiring in this section of the document is required for all PF3100 installations. Skipping or performing
any steps in this section incorrectly can result in the PF3100 not working properly.
6. Run appropriately zoned conduits between the modules. The UIX and CTX enclosures
have pre-drilled conduit holes in two different sizes – 0.5 in (1.27 cm) and 0.75 in (1.91
cm). There are 4 of each size available. Remove the hole seals as needed and install the
conduit.
7. Run a Cat5e or higher rated Ethernet cable through each conduit (between the BMS
Controller Card and each other card). Make sure that the UI Card is plugged into the port
on the BMS Controller Card labelled “UI Port”.
8. Make sure that all other cards are plugged into one of the other ports on the BMS
Controller Card.
9. Connect power wires according to specifications from the BMS Controller to an
appropriately rated power supply running at 12 or 24VDC.
10. Connect power wires according to specifications from each Ethernet switch to an
appropriately rated power supply running at 12 or 24VDC.
11. Wire valves (including PoC, PoLF, and Temperature Control Valve) to the BMS Controller
Card.
12. Wire the Pilot valve to the Pilot +/- terminals.
13. Wire the Main valve to the High Fire / Main +/- terminals.
14. If the Safety Shutoff Valves (SSV) are required in your application, wire one valve to the
SSV1 +/- terminals and the other valve to the SSV2 +/- terminals.
15. Make sure that each valve has a separate return wire. Multiple valves sharing common
return wires will not function properly.
16. Connect valve EGND wires to Earth Ground.
1 7. Note that the PF2100 valve output called “Low Fire” has been replaced by two new
valve outputs called Safety Shutoff Valve 1(SSV1) and Safety Shutoff Valve 2 (SSV2).
This is for applications that require two valves for safety. These two contacts always
follow each other but are provided separately for improved current handling and also for
improved troubleshooting.
18. Wire dry contact inputs to the BMS Controller Card as required.
19. There are 5 dry contact inputs on the PF3100. The expected connection to each of these
is a switch. These contacts must all be closed (shorted) in order for the system to start.
Jumpers are provided for each of these by default. If you need to use a particular contact
for your application, simply remove the associated jumper and connect a switch in its
place.
20. Wire the start contact to the BMS Controller Card as required.
21. The Start Contact can be used to attach a remote start/stop switch. This is typically
connected to a PLC dry contact output.
22. When the contact is open, the system is stopped. For safety reasons, a double action is
required to start the system remotely via this contact. This is accomplished by closing
the switch, opening it, and then closing it again. Once the system is running, simply
open the switch again to stop it.
23. Wire the 4-20 inputs or Pressure/Level Switches to the BMS Controller Card if required.
24. The Level Contact can be connected to a Level Switch installed right above the fire tube.
This is used to signal when the tank level drops below a certain minimum. This is often
the point at which the fluid in the tank is no longer covering the fire tube. Running the
burner with an empty tank can damage both the fire tube and the tank.
25. The Level Contact is time averaged to help reject brief fluctuations in tank level which
