Thermo Scientific System IV, Installation, Operation, Basic Maintenance

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Configuration
The unit top is secured to the cabinet by four ball stud retainers; one at each
corner. Remove cabinet top by prying upward gently (cover pops off) in
order to perform the following adjustments.
In some cases, the side access panels may need to be removed. The
access panels are secured using screws installed through the bottom of the
cabinet.
Voltage Selection
(60 Hertz Units)
NOTE Units rated 380-415 volt do not have a voltage selection switch.
Remove the top cover from the cabinet as described in Configuration.
The VOLTAGE SELECT toggle switch is located on the right side of the
control box. Two ranges are available: 200-208V and 220-240V. Set the
switch for the appropriate range.
Replace the top cover.
Fuses
The main fuses are 20 Amp RK5. The controller fuses are 1 Amp time delay.
Do not replace with an alternate amperage.
Single Phase Units
Remove the top cover from the cabinet.
The fuses are located on the right side of the control box.
Three Phase Units
Remove the top cover, the right access panel and the control box cover.
The fuses are located inside the control box.
Phase Rotation
Three phase units with three phase pump motors are equipped with a phase
rotation interlock. If the phasing is wrong, the controller will display
PHEr
and
the unit will not start.
Unplug the unit. Reverse any two power cord wires in the power cord plug.
Never remove the green ground wire.
Plug in the unit. The
PHEr
display should be off and the unit should start.