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Sunbank Installation Manual
Important points before you begin:
1. The evacuated tubes must be installed last.
The tubes quickly generate heat and need water in the tank to act as a load for the heat generated.
Keep the tubes in the box and covered until final step of installation. Do not touch heat pipe without
protective gloves as they get very hot.
2. Make sure that the heat pipes are fully inserted into the tank (about 6 inches).
First insert the condenser bulb of the heat pipe into the manifold until you feel the condenser bulb hit
against the end. Once fully inserted slide tube up to meet tank. Full instructions can be found in
section 13.
3. Use proper freeze protection
For installations in freeze prone areas, proper freeze protection is required. Descriptions of freeze
protection can be found on our website:
https://thesunbank.com/freeze-protection
According to the SRCC, the freeze tolerance for this system is 23° F or -5° C. Freeze tolerance limits
are based upon an assumed set of environmental conditions. Extended periods of cold weather,
including ambient air temperatures above the specified limit, might cause freezing in exposed parts of
the system.
It is the owner’s responsibility to protect the system in accordance with the supplier’s
instructions if the air temperature is anticipated to approach the specified freeze tolerance limit.
4. Put pipe dope on female and male threading then wrap with Teflon tape.
The threads on the openings to the Sunbank are such that they require at least 4 wraps of high quality
Teflon tape.
To prevent leaks you should put pipe dope on the female threads and on the male
threads, then wrap Teflon tape over the male threads.
This is a plumber’s
trick and the best way to
avoid leaks.
For the inlet and outlet on the bottom of the tank, remove the male threaded nipples and re-teflon
and thread seal them before filling tank.
5. Make sure to insert the temperature sensor the full 6 inches into the thermowell.
This is only applicable to installations that are installing the optional controller and heating element.
When inserting the temperature sensor into the black plastic cord grip make sure it goes all the way
up (about 6 inches) into the tank. Otherwise, you will get a bad reading which can cause your system
to overheat if using the optional controller and heating element.
