Nature's Comfort SunMor SM-V30 Installation Manual - page 5
11. ONLY INSTALL THE GLASS TUBES AND FILL WITH WATER IN THE MORNING BEFORE DAYLIGHT. Doing so at any
other time will cause the glass tubes to shatter due the extreme temperature difference of the glass tubes reaching
over 400 degrees being hit with unheated water. Heat is still produced on cloudy days and if empty, the tubes take
a long time to cool down after dark! The other option is to have the water lines installed first and water turned on
for the auto-fill valve to let water flow and fill a tube right as it is installed. Keep the glass tubes completely covered
from sunlight until ready to immediately install.
Before inserting a glass tube into the manifold, coat the end with soapy water before and after putting the black
rubber trim ring on and also coat the manifold gasket for ease of installation. Carefully install each tube into the
manifold by twisting and pushing in to the manifold as straight as possible. Use controlled, firm pressure. The tubes
will suddenly slide easily once fully pushed though the manifold gasket. Use extreme caution not to insert too far so
as to bump into the copper coil heat exchanger and causing the glass tube to shatter. Not using enough soapy water
can cause the rubber silicone sealing ring to “roll” in to the tank, requiring draining of the system if not discovered
until after filling.
12. Using the same twisting method, pull to seat the tubes in place in the plastic cups on bottom end of the frame. Slide
the cups left or right to keep tubes evenly spaced (if applicable).
Additional Safety Notes, Installing Multiple Systems
NEVER LEAVE OR ALLOW AN ASSEMBLED SM-V30 TO BE EMPTY. If left empty, the empty air space will heat to over
400F and cause the storage tank to warp.
The SM-V30 is a non-pressurized system only and must always be vented and water pressure continually fed to the
auto-fill valve to keep the main storage tank full of water.
Keep snow cleaned off the glass tubes using only a soft bristle brush. Never use hard tools or scrapers.
Keep tubes clean and clear of dust for best solar performance
For those who have larger demand that want to use multiple SM-V30 systems, put the domestic lines to and from the
copper coil heat exchangers of the SM-V30’s in series. Install the line to the auto-fill valve as usual (hot water from
the first system is permitted for auto-filling the next system).
Up to (2) SunMor SM-H60’s from Nature’s Comfort can also be tied in using the extra 1” ports on the main tank.
It is strongly recommended to install a water tempering (mixing) valve on the hot water output of the domestic water
heater to prevent scalding water temps (available from Nature’s Comfort).
Use softened water for the longest life and prevention of scale buildup in the storage tank, tubes and copper coil.