State 520 - Manual (Page 21)

Installation
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Page
‐Condensate Drain Connections‐
The water heater 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
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.
WARNING

Discharge condensate (acidic water) in accordance with all local codes and
common safety practices.
Neutralizer cartridge
(Included with
Neutralizer accessory)
1/2” Condensate
drain tube
3/8” or 1/2”
Condensate
drain tube
Case A
Adequate space
Drain
Case B
Condensate
drain port
1/2”FPT X 3/8”
(or 1/2”) HB
Condensate
drain port
1/2”FPT X 3/8”MPT
(Included with
Neutralizer accessory)
Adequate space
Drain
3/8”MPT X 1/2”HB
(Included with
Neutralizer accessory)