Rain Bird WS-PRO, Installation, Maintenance And Troubleshooting Manual

Page: 72 / 78

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62
valve box cover over the end of the
pipe and cover it with soil to finish
grade.
MSP-1 PIPE SURGE ARRESTORS:
Each of the pairs of wires in the
communication path, between the
central computer and the weather
station, shall be wired through an MSP-
1 pipe surge arrestor, at both the
computer end and at the weather station
end. The MSP-1 pipe surge arrestors
shall be located as close to the
equipment it is to protect as is practical.
The MSP-1 pipe surge arrestors shall be
mounted in MGP-1 grounding plate
assemblies.
The MSP-1 pipe surge arrestor is
marked, “EQUIP” on one end and
“LINE” on the other end. When
installing the MSP-1 be sure that the end
marked “EQUIP” is located “toward the
equipment” it is to protect, i.e., computer
or weather station. The “LINE” end
goes toward the field.
The Green wire on each end of the MSP-
1 pipe surge arrestor shall be attached to
one of the grounding screws on the
MGP-1 grounding plate assembly.
REFER TO FIGURE 28 ON THE NEXT PAGE