Benchmark Platinum-Edge: Operation-Service Manual
SECTION 5 – SAFETY DEVICE TESTING
OMM-0137_D • GF-211
•
7/16/2019
Technical Support
•
(800) 526-0288
•
Mon-Fri, 8 am - 5 pm EST Page 63 of 146
5.5 WATER TEMPERATURE FAULT TEST
A high water temperature fault is simulated by adjusting the
Automatic
Reset
Over-
Temperature
switch.
Water Temperature Fault Test Instructions
1. Start the unit in the normal operating mode and allow the unit to stabilize at its setpoint.
2. On the Automatic Reset Over-Temperature switch, note the current setting, then:
a. Press the
Set
button two times, to activate a setting change.
b. Use the
Down
arrow to lower the setting to a temperature
below
the Outlet
temperature displayed on the Controller’s front face (see Figure 5-5b).
c. Press the
Set
and
Down
arrow at the same time to save that temperature setting.
Figure 5-5a: Over Temperature Limit Switches
NOTE:
If the Controller’s is not configured to display outlet temperature, go to the
Main Menu
Advanced Setup
Unit
Front Panel Configuration
screen
and
set the
Upper-Right
Display
parameter to
Water Outlet
.
Figure 5-5b: Edge Controller Front Face
3. Once the Automatic Reset Over-Temperature switch setting is approximately just below
the actual outlet water temperature, the unit should shut down, the
FAULT
indicator should
start flashing, and a
High Water Temp Switch Open
fault message should be displayed. It
should not be possible to restart the unit.
4. Repeat Step 2 to return the Automatic Reset switch, but press the
Up
arrow to it to its
original setting.
5. The unit should start once the setting is above the actual outlet water temperature.
6. Repeat steps 1 – 4 on the Manual Reset switch. However, unlike the Automatic Reset
switch, the unit will not restart automatically when the original temperature is restored. You
must press the
RST
(Reset) button to restart the unit.
OUTLET
TEMPERATURE
INDICATOR
OUTLET
TEMPERATURE
AUTOMATIC
RESET
SWITCH
MANUAL
RESET
SWITCH
TEMPERATURE ADJUSTMENT CONTROLS
