17
Sunbank Installation Manual
The SB-40G and the SB-80G comes with a pre-installed 240V/2400W/10A element. We also have a
120V/1500W/13A element that you can purchase. The lower voltage element can be used for off-grid
battery backup applications or if there is not enough space on the breaker panel. They both have 1
”
BSP threads, and either element can be used with either system. We have a special socket to remove
the element and it comes with the purchase of the replacement element.
16. Project Completion
Once the tubes are installed the system should be ready for use. Again, make sure that there are no
leaks at the fittings and that the insulation is sufficient and sealed appropriately.
The next time you should need to think about your Sunbank is to check and change the magnesium
anode. Like any water heater, this anode should be changed in order to keep the inner tank from
corroding. The frequency with which you should change this anode depends on the total dissolved
solids (TDS) of your local water supply
. If you don’t have a
good idea of your local TDS, Sunbank
recommends that you check the anode one year after installation and base future checks on the
amount of the existing magnesium anode that is left at this point.
Addendum:
Watts (Grundfos) Instant Hot Water Recirculation System
We recommend this system, now available on our website and elsewhere online, to prevent
overheating and freezing.
http://www.watts.com/InstantHotWater
This valve installs under the sink furthest from the Sunbank and uses the cold water line to circulate
hot water back to the Sunbank tank. The pump is controlled by the Sunbank controller and can be
programmed to turn on when the Sunbank is getting too hot. Using the
“
AH function
”
we recommend
turning on the pump at 165F and turning it off at 160F. When the system comes on hot water is
circulated through the home’s plumbing lowering the temperature in the
tank. Likewise, the controller
can be set on a timer during the winter to come on periodically throughout the night to prevent any of
the plumbing lines from freezing.
