Takagi T-H2-DV Installation Manual And Owner's Manual page 21

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Discharge condensate (acidic water) in accordance with all local codes and
common safety practices.
WARNING
The T H2 DV/T H2 OS are high efficiency condensing water heaters that produce condensate (acidic
water). The acidic condensate generated in the secondary heat exchanger can be neutralized by the TH
NT01 Neutralizer.
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 T
H2 DV/T H2 OS.
2. Connect a condensate drain tube to the 1/2" FPT X 3/8" (or 1/2") HB Adaptor. TAKAGI 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 TH NT01 Neutralizer assembly)
1. Connect the 1/2" FPT X 3/8" MPT Adaptor to the condensate drain port at the bottom of the T H2
DV/T H2 OS.
2. Connect the TH NT01 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
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Case B
1/2"FPT X 3/8"MPT
(Included with TH NT01)
Neutralizer cartridge
(Included with TH NT01)
3/8"MPT X 1/2"HB
(Included with TH NT01)
Drain
Page
Installation
Condensate
drain port
1/2" Condensate
drain tube
Adequate space