Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
R
Section 7: Troubleshooting
Section 7.7,
continue
d
Page 33
Bedroom
Zone
Cozy III Heat
Exchanger
Bathroom
Zone
Cozy III Heat
Exchanger
Kitchen
Cozy III Heat
Exchanger
Living Room
Cozy III Heat
Exchanger
Fresh
Water
Tank Zone
Cozy III Heat
Exchanger
Heating
Loop 2
Heating
Loop 1
Typical Heat Exchanger
Locations
Living Room
Cozy III Heat
Exchanger
Living Room /
Kitchen Zone
After turning the Diesel switch ON:
TS7
: The Hydro-Hot is at operating tempera-
ture, but an Interior and/or Fresh Water
Tank Heating Zone is not producing heat.
Q1: Is the particular Heating Loop's Circula-
tion Pump operating?
Quick Check - Remove the Hydro-Hot's
Access
Cover and determine if the problem
Heat
Exchanger(s) are plumbed with Circula-
tion
Pump #1 or Circulation Pump #2, refer-
ence Figure 1 and the illustration below. Once
the correct Circulation Pump has been deter-
mined, locate and activate the Room Thermo-
stat for the particular heating zone. This
should
activate that particular Circulation
Pump. Is the Circulation Pump operating?
A: If YES:
Check
the particular Heating Loops
plu
mbing system for kinks and/or
any other types of flow restrictions.
If NO:
Perform
each of the following proce-
dures as necessary until the problem
is resolved.
1. Locate the Electronic Controller
and remove the Faceplate.
Section 7.7
2. Locate the Electronic Controller's
JP-3
Plug and then insert the
probes of a DC voltmeter into
Pin locations
5 (+) and 6 (-) for
Circulation
Pump #1, and/or into
Pin locations 3 (+) and 4 (-) for
Circulation
Pump #2, reference
Figure
3. Observe the DC voltage
level
on the voltmeter. Does a
nominal
voltage reading register
on the voltmeter?
A: If YES:
Th
e Circulation Pump must be
replaced.
Please contact our
Technical Department at 1-800-
685-4298
for assistance.
If NO:
The Electronic Controller must
be replaced. Please contact
our Technical Department at 1-
800-685-4298 for assistance.