Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
R
After turning the Diesel switch ON:
TS9
: The Hydro-Hot is at operating tempera-
ture, but the domestic hot water system is
not producing hot water.
Q1: Is the Electronic Controller's Stir Pump
Status light illuminated? (reference Figure
5)
A: If YES:
Perform
each of the following
procedures as necessary until the
problem
is resolved.
1. Seal all openings that may allow
cool air to enter the open area at
th
e backside of the Hydro-Hot.
2. Locate the Low-Temp Cutoff Ther-
mostat, reference Figure 1. Make
sure
that the thermostat has not
been dislodged from the copper
line, reference Figure 1.
3. Turn the Diesel switch ON and
allow the Hydro-Hot to reach it's
maximum operating temperature.
Once the Diesel-Burner has
cycle
d OFF, check the Low-Temp
Cutoff Thermostat for continuity,
reference Figures 1 and 3. If no
continuity
is present, the Low
Temp Cutoff Thermostat must be
replaced. Please contact our
Technical Department at 1-800-
685-4298 for assistance.
If NO:
Check
the Hydro-Hot's heating
solution
for the proper antifreeze to
water mixture (should be 33% anti-
freeze
and 67% water). A high
concentration of antifreeze will cause
a poor domestic hot water perfor-
mance.
NOTE: If there is still a lack of hot water after
performing all of the listed checks, contact our
Technical Department at 1-800-685-4298 for
additional assistance. Also, be sure to refer-
ence the chart on the following page regarding
the
Hydro-Hot's Domestic Hot Water System.
voltage signal at the Electronic
Controller?
A: If YES:
The
interior Room Thermostat may
need to be replaced. Please contact
our
Technical Department at 1-800-
685-4298 for assistance.
If
NO:
Th
e Electronic Controller must be
replaced. Please contact our Techni-
cal Department at 1-800-685-4298 for
assis
tance.
Section 7.8,
continue
d
Section 7.9
Section 7: Troubleshooting
Page 35