Installer’s Guide
Electric Boosted Solar
16
H3163 025247 Rev. C
anti-Frost Valve
Step 18
• 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
Frost Protection Installation Map
Wellington
Auckland
Christchurch
Locations in grey may be
subject to frost.