Water Temperature Fault Test - Watts Aerco Benchmark BMK750 Operation And Service Manual

Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 5 – SAFETY DEVICE TESTING

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. Allow the unit to stabilize at its setpoint.
2. Lower the adjustable Over-Temperature switch setting to match the displayed OUTLET
TEMPERATURE.
NOTE:
If the Controller's is not configured to display outlet temperature, go to the
Advanced Setup → Unit → Front Panel Configuration
Display parameter to Water Outlet.
3. Once the adjustable Over-Temperature switch setting is approximately at, or 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. Reset the adjustable Over-Temperature switch to its original setting.
OMM-0145_D • GF-218 •
11/2/2020
Figure 5-5a: Edge [i] Controller Front Face
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
Main Menu →
screen and set the Upper-Right
OUTLET
TEMPERATURE
INDICATOR
OUTLET
TEMPERATURE
Page 87 of 213