Installation Guide
10 Page
Installaon
Installaon Manual
3. Neutralizer kit: 100112159 (TH-NT01)
The neutralizer assembly neutralizes the condensate (acidic water) that forms in the
secondary heat exchanger of the water heater. (Refer to pp. 36 and 37.)
The temperature remote controller has the following features:
• Adjusts set water temperature
• Controls the pump operation
• Works as a diagnostic tool
• provides a concise error code whenever there is a problem
with the unit.
1. Temperature remote controller:
100276687 (TM-RE43)
5. 3" PVC concentric termination: 100112163 (TH-CVPVC33)
Used when terminating direct-vent (sealed combustion)
systems, with Indoor models that require a 3 in (76 mm) intake
and a 3 in (76 mm) exhaust.
2. Pipe cover:
100112718 (TH-PC03)
4. Sidewall vent terminator (Hood) and Wall thimble:
They are used when venting out through the wall. These terminations are special stainless steel vents
for gas appliances and are UL listed as Category II, III and IV. For different wall thicknesses, there
are two ranges of lengths available. (Refer to the NovaVent brochure for details.) Install these vent
terminations in accordance with their installation instructions and any applicable local codes.
Covering wall thicknesses Part#
Terminator Hood 100112419
Wall Thimble 4 - 7 in (102 - 178 mm) 100112732
Wall Thimble 5 - 10 in (123 - 254 mm) 100112733
Termination + Thimble 4 - 7 in (102 - 178 mm) 100112424
Termination + Thimble 5 - 10 in (123 - 254 mm) 100112425
Wall Thimble
Terminator Hood
6. Non-return valve for common venting : 100113130
It is a must-have item for common venting system. It prevents
the escape of combustion gas through non-operating appliances.
(Refer to pp. 26 and 27.)
This concentric termination provides the convenience of only having to make one penetration through a
sidewall instead of two separate penetrations for the intake and exhaust piping. The termination includes
a bird screen, restricting small animals, pests, and foreign objects from entering into the vent system.
(Refer to p.19.)
The pipe cover protects the
plumbing pipes to the water heater
from unexpected adjustments. This
pipe cover is fixed to the bottom of
the water heater, which hides the
plumbing and improves the visual
aspects of the whole installation for
the water heater.
Refer to pp. 51 to 60 for more information.
See the Troubleshooting Section (pp. 64 to 69) for information
on possible error codes.