37
Page
FLOW
•
This micro-boiler comes equipped with hea
ting
blocks to protect it ag
ain
st damage associated with
free
zing
.
•
For this freeze prot
ection
system to operate, there has to be electrical power to the micro-boiler.
Damage to the heat ex
chan
ger caused by free
zing
temperatures due to power loss is
not
covered
under
the warra
n
ty.
In
cases where power losses c
an
occur, c
onsider
the use of a backup power supply.
•
The freeze protec
tion
system will ac
ti
vate w
hen
the freeze protec
tion
thermostat se
ns
es temperatures
at 36.5 °F (2.5 °C) or lower.
•
It is the
in
staller’s r
esponsibi
lity to be aware of free
zing
issues
and
take all preve
n
ta
ti
ve measures. The
manu
facturer will
not
be r
esponsible
for a
n
y damage to the heat ex
chan
ger as a result of free
zing.
In any area subject to freezing temperatures, freezing issues can occur if cold air enters through the
venting into the heat exchanger by either negative pressures within the installation location or by
strong outside wind. The manufacturer highly recommends the use of a backflow preventer (sold
separately) to minimize the amount of cold air entering through the exhaust venting when the micro-
boiler is off.
•
If you will
not
be
using
your boiler for a
long
period of
time:
1.
Completely dr
ain
the water out of the micro-boiler. Refer to p. 38.
2.
Disc
onnect
power to your boiler.
This will keep your micro-boiler from free
zing
and
being
damaged.
Only
pipes
within
the micro-boiler are protected by the freeze prot
ection
system. A
n
y water pipes (hot or cold) located outside the micro-boiler will
not
be protected. Properly protect
and
insul
ate these pipes from free
zing
.
CAUTION
FREEZE PROTECTION SYSTEM
•
The
fl
ow rate through the micro-boiler is limited t
o a maximum of 7.0 GPM (26.5 L/min).
•
The temperature setting, along with the return temperature of the water in the system will determine
the flow rate output of the micro-boiler.
Owner's Guide
•
Summary of Contents for HS120CON-LP
Page 27: ......
