Modulex Light Commercial Series
CHAPTER 4: Installation Instructions
OMM-0158_A
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NOTE:
Use Teflon tape or suitable pipe joint compound for component and piping connections.
Installing the Flow Switch and CSD-1 Components
1. Attach manifold to the outlet supply connection on the boiler via the flanged connections.
2. Cut the flow switch for 2-
1/2” pipe, as directed in the flow switch paddle packaging. For
installations expecting less than a 10 gpm flow, the switch must be adjusted as follows:
a) With no flow, turn adjustment screw on switch counter-clockwise until switch trips.
b) Then turn screw 1/2 turn clock-wise and continue installation.
3. Connect the Flow Switch and Pressure/Temperature Gauge to the tapped holes in the
manifold assembly, as shown in Figure 4-15, above.
4. Check to ensure that all components are securely tightened and that the flow switch
paddle moves freely without interference.
5. Locate terminals FL and 10 on the Input/Output box. Remove the jumper wire between
these terminals and connect the two flow switch wires. The Flow switch wires have no
polarity, so can be inserted without regard to position.
INPUT/OUTPUT BOX
Figure 4-16: Input/Output Box Location and Flow Switch Connection
