Takagi T-H3J-DV Installation Manual And Owner's Manual page 27

Discharge condensate (acidic water) in accordance with all local codes
and common safety practices.
WARNING
The water heater is a high efficiency condensing water heater that produces condensate (acidic water).
The acidic condensate generated in the secondary heat exchanger can be neutralized by the Neutralizer
accessory.
Case A: If a neutralizer is not required
1. Connect a 1/2" FPT X 3/8" (or 1/2") HB Adaptor to the condensate drain port at the bottom of the
water heater.
2. Connect a condensate drain tube to the 1/2" FPT X 3/8" (or 1/2") HB Adaptor. The manufacturer
recommends the material of the condensate tube be either EPDM or PVC.
3. Leave an adequate amount of space between the end of the drain tube and the actual drain, to
facilitate proper drainage.
Case B: If a neutralizer is required (installing the Neutralizer assembly)
1. Connect the 1/2" FPT X 3/8" MPT Adaptor to the condensate drain port at the bottom of the water
heater.
2. Connect the Neutralizer to the 3/8" MPT connection of the adaptors. There is a flow direction indicator
on the neutralizer. Please orient the neutralizer in the proper direction.
3. Connect a 1/2" drain tube to the other end of neutralizer.
4. Leave an adequate amount of space between the end of the drain tube and the actual drain, to
facilitate proper drainage.
Case A
1/2" FPT x 3/8"
(or 1/2") HB
3/8" or 1/2"
Condensate
drain tube
Drain
-Condensate Drain Connections-
Condensate
drain port
Adequate space
27
Case B
1/2" FPT x 3/8" MPT
(Included with
Neutralizer accessory)
Neutralizer cartridge
(Included with
Neutralizer accessory)
3/8" MPT x 1/2" HB
(Included with
Neutralizer accessory)
Drain
Page
Installation Manual
Installation
Condensate
drain port
1/2" Condensate
drain tube
Adequate space