Wood heating solution SunMor SM-V30, Installation Manual, Page: 6 / 6

Maintenance

If the end of a tube is clear or a chalky white instead of silver colored, the vacuum seal has failed and the tube is no
longer insulated and must be replaced.

To clean scale buildup in the copper coil heat exchanger (Isolation valves must be installed. See drawing earlier in this
manual):
CAUTION! Water will be scalding hot!
1. Close valves A & D to isolate off the domestic water.
2. Fill the coil with white vinegar through valve B and let water flush out of valve C until coil is full of white vinegar
and close valves. Let sit for 4 hours, then open valve C, then A to fully flush out vinegar.
3. Close valve B & C and open valve A & D to put back in service.
4. Repeat if necessary until clean.

To clean scale buildup in the main storage tank and/or tubes :
CAUTION! Water will be scalding hot!
1. Turn off domestic supply and drain 10 gallons of water from the main storage tank.
2. Add 10 gallons of white vinegar through the auto-fill tank and let sit for 4 hours.
3. Remove bottom plug to drain the main storage tank.
4. Remove each solar tube individually to empty and rinse out vinegar solution (keep covered from daylight until
ready to re-install and fill with water!) .
5. Rinse out main storage tank by spraying up through solar tube ports.
6. Turn on domestic water supply for auto-fill tank to fill solar tubes as they are re-installed.
7. Re-install tubes and repeat procedure if needed until clean.
Warranty

1 year on main storage tank and auto-fill tank/valve and 5 years on solar tubes. This covers manufacturing defects.
Enjoy your free hot water!
All drawings and pictures are copyrighted material and are the property of Nature’s Comfort. No unauthorized use is permitted without written permission from
Nature’s Comfort LLC, 3790 N SR 5, Shipshewana, IN 46565