SmartPlate EV Installation, Operation and Maintenance Manual
CHAPTER 6
– SCHEDULED MAINTENANCE
OMM-0147_C
• SP-102 • 3/2/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
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SCHEDULED MAINTENANCE
6.1 INTRODUCTION
SmartPlate EV Water Heaters require regular routine maintenance to keep the unit operating at
optimum efficiency. AERCO recommends that the tasks listed in Table 6-1
– Scheduled
Maintenance Action, be performed at the periodic intervals specified. Table 6-1 consists of three
columns arranged as follows:
•
Interval Column. The Interval column contains alphabetical symbols which list all of the
recommended scheduled maintenance tasks contained in this chapter.
•
Maintenance Action Column. This column lists the required maintenance action which
corresponds to the interval symbol in the previous column.
•
Reference Column. This column lists the section number containing the required procedure.
TABLE 6-1. Scheduled Maintenance Actions
Interval
Maintenance Task
In Section
Weekly
Check plate packs for leakage
6.2
Quarterly
Check the operation of the Over-Temp switch in the
ECS II Control Box
6.3
Quarterly
,
Semi-Annually
After the first 3 months, check the operation of the 3-
Way Control Valve.
Then, check operation every 6 months.
6.5
Semi-Annually
Check the Strainers on both the Boiler Water and
Domestic Water Piping.
6.4
Annually
Check the Temperature Sensors
6.6
Annually
Check Flow Meter
6.6
Annually
Check Pressure Transducers
6.6
Periodic
Periodic cleaning of the heat exchanger may be
necessary, depending on conditions and settings.
6.7
6.2 PLATE PACK LEAKAGE CHECKS
Check the Plate Pack for leaks as follows:
PLATE PACK LEAKAGE CHECKS
Instructions
1. Remove the thermal jacket to access the Plate Pack.
2. Check for leakage between plates in the Plate Pack. If there is evidence of leakage:
a) Shut down the unit per the instructions in Section 5.4.
b) Remove the heat exchanger per the instructions in Section 8.2.1.2.
c) Contact the AERCO factory to arrange for a replacement heat exchanger.
