SmartPlate EV Installation, Operation and Maintenance Manual
CHAPTER 8
– CORRECTIVE MAINTENANCE
OMM-0147_C
• SP-102 • 3/2/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
48
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LEFT-FRONT VIEW RIGHT-FRONT VIEW
Figure 8.2.1. SmartPlate EV Piping Components
8.2.1.1 HEAT EXCHANGER CLEANING AND DE-SCALING
The Double-Wall heat exchanger can be cleaned in-place by circulating cleaning agents through
the unit.
If the heat exchanger is not encrusted with hardened scale deposits, it can normally be cleaned
by circulating cleaning agents (Rydlyme Chemical Descaler from Apex Engineering Products
Corp. or equivalent) through the assembly.
8.2.1.2 HEAT EXCHANGER REPLACEMENT
The heat exchanger used in all SmartPlate EV models is removed and replaced using the
following basic procedure:
HEAT EXCHANGER REPLACEMENT Instructions
1. Turn the power switch on the side of the ECS II Control Box to the
OFF
position.
2. Slowly close all four of the Isolation Ball Valves.
3. Open both Blow-down Valves (see Figure 8.2.1, above) to allow air into the piping during
draining.
ISOLATION
BALL VALVES
BOILER WATER
INLET
ISOLATION
BALL VALVES
DHW OUTLET
DHW INLET
BOILER WATER
OUTLET
PRESSURE
RELIEF VALVE
3-WAY
CONTROL
VALVE
BLOW-DOWN
VALVE
BLOW-DOWN
VALVE
