Table of Contents
Advertisement
Appliance condensate drain installation
The appliance comes equipped with an internal condensate
drain and siphon. This drains condensation formed in the
secondary heat exchanger. Piping must be installed under the
condensate drain outlet on the water heater and piped for
disposal in accordance with local codes.
To install the condensate drain, connect a ¾" NPT adapter on
the water heater.
Fig. 16
Appliance drain installation
[1] Condensate drain connection
[2] Breather
Installing an additional breather downstream in not necessary
since this function is already included in the heater.
NOTICE:
A blocked breather will prevent siphon from draining.
▶ Ensure that the breather included in the siphon is not
obstructed to allow correct function.
Verify condensate disposal/neutralization is in accordance with
federal, State, and local regulation.
This is a high efficiency appliance, condensate flow can be as
much as 2.1 gal/hr at full power.
4.11 Domestic hot water recirculation with
external pump
The following drawings are provided to illustrate possible
recirculation designs. These schematics are for illustration only
Greentherm T9800 SEO 160/199 | SECO 199 – 6 720 817 281 (2018/12)
and must not be used for actual Installation without appropriate
engineering and technical advice from a properly licensed
professional in the locality where the installation is made.
This appliance has been designed to activate recirculation by
controlling an external pump. For this function, the external
pump must be powered by an external electrical source and can
be switched on and off using the Bosch cable accessory
(7736504585).
Fig. 17
Recirculation application with a dedicated return line
[1] Cold water supply
[2] Check valve field supplied
[3] Circulator pump field supplied
[4] Expansion tank field supplied
[5] Circulator cable accessory
[6] PRV
[7] Shutoff valves field supplied
[8] Greentherm T9800 SEO
Installation instructions
21
Hide quick links:
Advertisement
Table of Contents
