KI-OM-0591 Rev 3
17
Operations
The above heater selection will supply the approximate heating capacity required to produce
the specified temperature rise through the unit. The controller will accurately control the outlet
temperature and keep this temperature at the set point.
Note
Table 3 is intended as a guide. Due to variations in installations, operating
conditions and working environments. It is important to monitor the function of the
unit to ensure that the process is correctly controlled. If the control valve is
constantly open this indicates over-heating and a lower heater selection may be
used. If the control valve is constantly closed this indicates under-heating and if
required a higher heater selection may be used.
3.3
Operator Controls
Local operator control of the WHE-3 is achieved using the Temperature Controller keypad to
change the set point and rotary switches for heater bank selection.
For remote control the WHE-3 operator will select the heater banks to be used and start the
pump motor locally. Once the controller has been set to use the remote set-point input the
remote control may be used for the fine control of the outlet temperature. The operator
controls are shown below.
Figure 4 General Arrangement
Operator control of the WHE-3 is achieved using the Temperature Controller keypad to
change the set point and switches for heater bank selection. The WHE-3 is also equipped
with several analogue gauges displaying fluid temperature and pressure throughout the
system. The layout of the operator interface is shown in Figure 4.
Содержание WHE - 3
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