SmartPlate EV Installation, Operation and Maintenance Manual
CHAPTER 8
– CORRECTIVE MAINTENANCE
OMM-0147_C
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8.3 Electronic Control System (ECS II)
WARNING!
Turn off the Control Box
’s power switch and disconnect AC power prior to performing
all corrective maintenance procedures in the sections below. Failure to observe this
warning may result in serious personal injury
.
8.3.1
CONTROL BOX ASSEMBLY COMPONENTS
Corrective maintenance for the Control Box and internally mounted components consists of
removing and replacing the following items:
•
Temperature Controller
•
Over-Temperature switch
The following sections reference figures in previous chapters as well as figures in this chapter.
Refer to the applicable figures as necessary when performing the replacement procedures
which follow.
8.3.2
TEMPERATURE CONTROLLER REPLACEMENT
The Temperature Controller is mounted in the Control Box, as shown in Figure 4.3. To remove
and replace it, complete the instructions below.
TEMPERATURE CONTROLLER REPLACEMENT Instructions
1. Turn the Enable/Disable switch on the Control Box to the
Disable
position.
2. The Temperature Controller, shown below, is installed in a sleeve. To unplug and remove
the Controller from its sleeve, simply pry the latching ears outward and pull the Controller
out of the panel.
Figure 8.3.2. Temperature Controller Installation
3. To install a replacement Temperature Controller, remove wires from old Controller, install
the wires on the new Controller, then slide it into the front panel sleeve until the latching
ears click into place.
4. Following replacement, switch power on and adjust the setpoint temperature to the
required value using the Adjustment procedures in Chapter 4, Section 4.3.
LATCHING EARS
SLEEVE
PANEL SEALING
GASKET
TERMINAL COVERS
