12
Preventive Maintenance
Once the unit is in service, we suggest following the
maintenance procedures as closely as possible. The
importance of a properly established preventive
maintenance program cannot be overemphasized.
Taking the time to follow these simple procedures
will result in substantially reduced downtime,
reduced repair costs, and an extended useful lifetime
for the unit. The following is a list of suggested
periodic maintenance.
Once a Week
1.
Check to make sure that the To Process
temperature is reasonably close to the Set Point
temperature. If the temperature stays more than
5°F away from the set point, there may be a
problem with the unit. If this is the case, refer to
the General Troubleshooting section of this
manual or contact our Customer Service
Department.
2.
Check the pump discharge pressure. Investigate
further if the pressure starts to stray away from
the normal operating pressure.
3.
Check the pump for leaks in the seal area.
Replace pump seal if necessary.
Once a Month
Repeat items 1 through 3 listed above and continue
with the following.
4.
With the main power shut off, check the
condition of electrical connections at all
contactors, starters, and controls. Check for
loose or frayed wires.
5.
Check the incoming voltage to make sure it is
within 10% of the design voltage for the
temperature control unit.
6.
Check the amp draws to each leg of the pump
and heaters to confirm that they are drawing the
proper current.
7.
Check the heat exchanger inlet strainer and
clean debris out as necessary.
8.
Check the condition of the oil and replace as
necessary as instructed by the oil manufacturer.
Once a Year
Repeat items 1 through 8 as listed above and
continue with the following.
9.
Carefully inspect the heat exchanger for signs of
scale build-up and carefully clean and remove
scale as necessary.
CAUTION: The amount of scale build-up is
dependent upon the amount of cooling required for
each process along with the quality of the cooling
water supply. We have supplied the unit with a
stainless steel heat exchanger to allow the use of
strong lime-scale removal chemicals (acids). We
recommend you clean the heat exchanger
thoroughly on a periodic basis, or after each job, to
allow for the longest life and highest heat removal
potential of the unit. If the heat exchanger becomes
completely blocked, lime scale removal will be
impossible.
Summary of Contents for Oiltherm RO
Page 1: ......
Page 2: ......
Page 18: ...14 Drawings Charts Figure 1 Pump Curve 60 Hz ...
Page 19: ...15 Figure 2 Cooling Capacity ...
Page 20: ...16 Figure 3 High Voltage Wiring Diagram ...
Page 21: ...17 Figure 4 Low Voltage Wiring Diagram ...
Page 22: ...18 Figure 5 Control Board Details ...
Page 23: ...19 Figure 6 Heating Element Details ...
Page 26: ...Notes ...
Page 27: ......