Installer’s Guide
Electric Boosted Solar
16
H3163 025247 Rev. C
• Consult the table right to determine
if your system needs an anti-frost
valve.
• If your model does require frost
protection, you must install an anti-
frost valve.
• However, TWO anti-frost valves
must be installed if you live in alpine
areas or areas subject to extreme
frost, such as the ACT and Snowy
Mountain regions.
• The anti-frost valve comes in kit form
and must be ordered separately.
Tank
Model
Anti-Frost Valve
Needed?
2F136S Yes
2F136SD No
2S136ED No
3F136S Yes
3F136SD No
3S136ED No
4F136S Yes
4F136SD No
4S136ED No
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