Severn Trent VAX4600 Series, Инструкция по эксплуатации

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b. Wire the magnetic contactor to a fused safety switch, unless factory installed, and then to the
power source.
2.4.2 Control Circuits
WARNING : Temperature controls are voltage sensitive. Applying improper voltage will destroy the
switch.
a. Wire the control circuit L1 and L2 to a fused safety switch and then to the power source.
b. Wire the electric actuator on the pressure reducing valve or pilot solenoid valve (pneumatic
models only) to the vaporizer terminal strip. See Bulletins 115.3020 or 115.3021.
c. Connect the magnetic contactor coil to the control circuit terminal block.
d. Wire the water fill solenoid valve to the control circuit terminal block. Do not apply power.
2.4.3 Alarm Switches
a. The low water temperature alarm switch can be connected to an outside alarm system. If the
water bath temperature is below a preset limit, the pressure reducing valve will close and the
alarm switch will actuate.
b. The high temperature alarm switch can be connected to an outside alarm system. If the water
bath temperature exceeds a preset limit, power will be cut to the heaters and the alarm switch
will actuate.
c. The low water level alarm switch can be connected to an outside alarm system. If the water bath
level drops below the set point, power will be cut to the heaters and the alarm switch will actuate.