JFD KI40018AA, Operation And Maintenance Manual, Page: 29 / 110

21
KI-OM-6768 R0 Chapter 3
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.
3.2 O
PERATOR
C
ONTROLS
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 Fig 3.2.
Fig 3.2 General Arrangement
I
MPORTANT
Table 3.1 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.