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Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 6
– MAINTENANCE
OMM-0143_A
• GF
-216
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9/6/2019
Technical Support
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(800) 526-0288
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Mon-Fri, 8 am - 5 pm EST Page 88 of 170
6.8.3 Waterside Heat Exchanger Cleaning
If the inspection of the waterside components revealed sediment and/or scale buildup, complete
the instructions below to flush the shell with a cleaning solution.
To clean the heat exchanger, AERCO recommends using a cleaning solution of Rydlyme
Chemical Descaler (or equivalent) and clean water. This product, available from Apex
Engineering Products Corp., is designed to dissolve water scale, lime scale, calcium and rust. To
obtain this product, or for specifications and instructions for its use contact Apex Engineering
Products, or call AERCO Technical Service at (800) 526-0288.
6.8.3.1
Pumping System Set-Up Instructions
A sample pumping set-up diagram is shown in Figure 6.8.3.1. The heat exchanger is cleaned by
pumping the cleaning solution from a large circulating bucket to the heat exchanger drain valve,
through the heat exchanger and then out through the output connection of the unit. Set up the
pumping system as follows:
Set-Up Instructions Instructions
1.
Turn off the water heater.
2.
Close the hot water outlet and cold water inlet isolation valves.
3.
Open the drain valve at the rear of the unit and drain at least half of the heat exchanger
water-side volume. When full, Innovation models hold the approximately gallons of water
listed below. Drain at least the amount of water shown, depending on the model.
Model
Capacity
Volume to be Drained
INN 600N
24.5 gallons (92.7 L)
12.25 gallons (46.37 L)
INN 800N
24.5 gallons (92.7 L)
12.25 gallons (46.37 L)
INN 1060N
23.0 gallons (87.01 L)
11.5 gallons (43.53 L)
INN 1350N
20.6 gallons (77.97 L)
10.3 gallons (38.98 L)
4.
Close the lower drain valve and connect a suitable size bucket and pump to the lower drain.