John Wood Takagi - 320H-520H - Manual (Page 16)

16
Condensate Drain Connections
WARNING
Discharge condensate (acidic water) in
accordance with all local codes and com-
mon safety practices.
The 520H models 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 Neutralizer accessory.
Case A: If a neutralizer is not required
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.
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.
Leave an adequate amount of space between the end
of the drain tube and the actual drain, to facilitate proper
drainage.
1/2"FPT X 3/8"
(or 1/2") HB
Condensate
drain port
Adequate
space
Drain
3/8" or 1/2"
Condensate
drain tube
1.
2.
3.
Case B: If a neutralizer is required (installing
the Neutralizer assembly)
Connect the 1/2" FPT X 3/8" MPT Adaptor to the conden-
sate drain port at the bottom of the water heater.
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.
Connect a 1/2" drain tube to the other end of neutral-
izer.
Leave an adequate amount of space between the end
of the drain tube and the actual drain, to facilitate proper
drainage.
1/2"FPT X 3/8"MPT (Included
with Neutralizer accessory)
Condensate
drain port
Adequate
space
Drain
1/2" Condensate
drain tube
3/8"MPT X 1/2"HB (Included
with Neutralizer accessory)
Neutralizer cartridge (Included
with Neutralizer accessory)
1.
2.
3.
4.