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Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 6
– MAINTENANCE
OMM-0143_A
• GF
-216
•
9/6/2019
Technical Support
•
(800) 526-0288
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Mon-Fri, 8 am - 5 pm EST Page 90 of 170
Cleaning Procedure Instructions
9.
Upon completion of the cleaning process, begin flushing the solution by adding clean water to
the circulation bucket, then disconnect the return valve and hose connection from the top of
the circulating bucket and thoroughly flush. Continue water flushing the equipment for a
minimum of 10 minutes or until discharge runs clear.
10.
Rydlyme Chemical Descaler is biodegradable, and in most instances may be purged down
sewers. Check with local authorities before disposing of any complex compositions
11.
Turn off water, shut off the pump and immediately close discharge valves to prevent backflow.
12.
Completely drain pump bucket. Disconnect the hoses from equipment and thoroughly rinse
the bucket, pump, and associated hoses used.
6.8.3.3
Testing Cleaning Effectiveness
There are two methods of testing the effectiveness of the cleaning solution during cleaning: the
calcium carbonate spot test of the circulating solution and the charting of a trend in the pH of the
cleaning solution.
Calcium Carbonate Spot Test
A calcium carbonate spot test is performed by exposing a form of calcium carbonate to the
cleaning solution. Samples of the deposit, a Tums or Rolaids tablet, or bare concrete can
be used. Observe the reaction of the cleaning solution on the calcium carbonate. Foaming
and bubbling indicates the solution is still active. Little or no reaction indicates that the
solution is expended. This test should be performed near the end of the circulating time. If
the solution has been expended, more cleaning solution will be required to complete the
job. If the solution is still active at the end of the time, all the scale has been dissolved.
pH Trend Charting
The initial pH of the cleaning solution will measure between 1-3 (See pH sheet on Rydlyme
Chemical Descaler packaging). To test the effectiveness of the circulating solution as a
function of pH, take readings at regular intervals and chart as a trend. Note that the
deposits can cause a premature jump in the pH. After circulating for approximately 75% of
the cycle time, begin testing the pH at 10-
15 minute intervals. Once the solution’s pH reads
6.0-7.0 on three or more consecutive readings, the solution is expended. If the pH reads
below 6.0 after the circulating time, the application is clean.
6.9 CONDENSATE DRAIN TRAP
Innovation Water Heaters are shipped with a condensate trap (P/N
99259
). The trap must be
installed external to the unit and attached to the
exhaust manifold’s condensate drain port, as
described in Section 2.9 (see Figure 2.9-1 and 2.9-2). This trap should be inspected and, if
necessary, cleaned according to the schedule in Table 6-1 to ensure proper operation.
To inspect and clean the trap, proceed as follows:
Condensate Trap Inspection and Cleaning Instructions
1.
Disconnect the condensate trap by loosening and then removing connections on the inlet and
outlet sides of the trap (see Figure 6.9).
2.
Unscrew and remove both the top and bottom caps.