SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 6 – SCHEDULED MAINTENANCE
OMM-0069_0H • SP-100 • 1/30/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 45 of 134
TEMPERATURE SENSOR CHECKS Instructions
5. Inspect the Sensors for evidence of scale build-up on the stainless-steel sleeve of the
Sensors. If necessary, clean the Sensors using a wire brush.
6. In addition to the immersion Sensors mentioned above, check the attachment of the
surface-mount Sensors on the Boiler Water Inlet and Outlet piping.
6.8 RECIRCULATION PUMP CHECK
The Recirculation Pump is installed between the DHW inlet and outlet pipes beneath the Mixing
Box.
WARNING!
PRIOR TO PERFORMING THE FOLLOWING STEPS, ENSURE THAT THE POWER
SWITCH ON THE SIDE ECS/SP CONTROL BOX IS OFF AND THE HEATER HAS BEEN
DRAINED AS SPECIFIED IN THE PREVIOUS SECTION.
PLATE PACK LEAKAGE CHECKS Instructions
1. Make sure that the POWER switch on the Control Box is OFF.
2. Ensure that the Drain Valve is open and the water has been drained from the unit.
3. Locate the Recirculation Pump and disconnect the flanges from the piping.
4. Carefully slide the Pump out and rotate to inspect. DO NOT pull on the electrical conduit
when removing Pump.
5. If there is evidence of scale build-up, disconnect the conduit and electrical power
connections from the Pump. Service or replace the Pump as necessary.
6. If there is no evidence of scale build-up on the Recirculation Pump, reinstall the Pump and
reconnect the flanges.
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