Innovation Hot Water Hot Water Boiler User Manual
- INTERNATIONAL
CHAPTER 6 – MAINTENANCE
OMM-0120_0A
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
81
of
174
GF-128-I
Phone: 800-526-0288
11/15/2016
6.8.1 Pumping System Set-Up Instructions
A sample pumping set-up diagram is shown in Figure 6-8 for an Innovation Hot Water Boiler. As
this diagram shows, heat exchanger cleaning is accomplished by pumping the HydroSkrub
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 heater. Set up the pumping system
as follows:
Set-Up Instructions
1.
Turn off the hot water boiler and close the inlet and outlet isolation valves.
2.
Open the drain valve at the rear of the heater and drain at least half of the heat exchanger
water-side volume. When full Innovation models hold approximately the gallons of water
listed below:
•
INN800
24.5 gallons (92.7 L) – (drain at least 12.25 gallons, 46.37 L)
•
INN1060
23 gallons (87.01 L) – (drain at least 11.5 gallons, 43.53 L)
•
INN1350
20.6 gallons (77.97 L) – (drain at least 10.3 gallons, 38.98 L)
For the Innovation model being cleaned, drain at least the amount of eater shown in
parentheses.
3.
Prepare a 50% solution of HydroSkrub and clean water. The amount of the solution should
be approximately equal to the full volume of water that the heat exchanger holds.
4.
Mix 11 (41.7 L) gallons of HydroSkrub with 11 gallons (41.7 L) of water to provide a 50%
solution.
5.
Close the unit drain valve and connect a suitable size bucket and pump to the unit drain as
shown in Figure 6-8.
6.
Install a “T”, ball valve and hose connection in the outlet piping of the heater (Figure 6-8).
Route the hose back to the top of the circulation bucket.
Figure 6-8. Sample Heat Exchanger Cleaning Set-Up
HOSE
CONNECTION
UNION
BACK-FLOW
PREVENTOR
CLOSE COLD
WATER INLET
COLD
WATER
IN
PUMP
CIRCULATION
BUCKET
HOT WATER
OUTLET
CONNECTION
DRAIN
VALVE
