TM10-6640-216-13&P
5-8. REMOVE/INSTALL WATER PRESSURE SWITCH - continued.
INSTALLATION
Install Water Pressure Switch. (Figure 5-4).
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
1.
Be sure water pressure range adjustable screw is set to 20 PSI.
Be sure water differential adjustment screw is set to 33.
Apply teflon tape to male fittings. Be sure to wrap teflon tape in same direction of pipe
thread.
Hold the reducer and install the new pressure switch by rotating the switch.
Position electric leads to switch and install lock nuts on the two (2) strain reliefs.
Connect five (5) wires to switch terminal.
Snap on the pressure switch cap.
Place activation lever in the AUTO position.
Close water faucet.
Close circuit breaker CB16 located in the panellxmrd assemble.
Turn the WATER PUMP switch to the ON position.
Check for leaks and verify proper operations. (Refer to operating procedures contained
in paragraph 2-12. b.)
ADJUSTMENT
Adjust Water Pressure Switch. (Figure 5-4).
a.
Snap off switch cap.
b.
Install test gage in water system, turn water system on to pressurize system, pump
should cut off at 20 psi and cut on at 10 psi.
c.
Adjust the water differential adjustment screws to required setting by turning clockwise
to increase and counterclockwise to decrease pressure. Refer to information on switch
cap for additional information.
d.
Install pressure switch cap.
e.
Remove test gage.
5-12
