Pentair ONGA FARMMASTER JJ Series, Руководство пользователя

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8
Installation (continued)
g) Valves
Onga recommend the use of shut off valves in suction & discharge pipe to
assist when maintenance is required. Closed loop systems or applications
where the pump is installed vertically higher than the water source will
require an additional check valve or footvalve. On suction lifts, a foot valve
MUST be used.
h) Electrical:
230 volt single phase motors are supplied as standard with thermal over-
load protection and are designed to plug directly into a 10 amp domestic
power supply to local electrical authority specifications.
The power supply lead has a type “Y” connector and if service is required to
the power lead, it must be replaced with the appropriate specialised power
lead assembly. Warranty is void if unauthorised modifications are made to
any component.
For further information refer to page 5.
Pumps fitted with 415 volt three phase electric motors should be protected
with the recommended contactor and thermal overloads in accordance with
local electrical authority specifications. Direction of rotation must be checked
by switching power on momentarily and observing motor rotation. If the
direction is not correct as per motor label have a qualified electrician make
the change.
For further information refer to page 10.
Fire and burn hazard. Modern motors run at high temperatures. To
reduce risk of fire, do not allow leaves, debris, or foreign matter to collect
around the pump motor. To avoid burns when handling the motor, let it
cool for at least 20 minutes before trying to work on it. A thermal overload
switch protects the motor from heat damage during operation.
For shallow well applications it is recommended to set the pressure switch
cut-out to 30kPa (5psi) below the maximum pump pressure when the
system is operating with maximum suction lift.