Measurement Guide

Application Manual Greentherm T9800/9900 SE/SEO/SEi | 15
Bosch Thermotechnology Corp. | 12.2019
Data subject to change
4.3.2 Single tank loading with recirculation installation
Local code requirements
may require installation
of a thermostatic mixing
valve in some
installations.
see wiring detail
Section 4.3, page 13
Hot
Water
Supply
Cold Water
Supply
NBT-23
Condensate
Neutralizer 
)
(part# 7 738 005 514)
To drain or
pump
Gas
External NTC sensor
(part# 7 736 504 583)
Storage Tank
Recirc
Return
Legend
Full-port
ball valve
Thermostatic
mixing valve
Union
Check valve
Y-type strainer
Aquastat or Thermistor
Potable
expansion
tank
Pressure
relief valve
Circulator
1) as required by local code.
DISCLAIMER: This drawing is conceptual in nature, not to scale and for reference only. Additional functional, installation, and safety devices may be needed or
required. All work pertaining to the installation shall be in full compliance with all legal requirements, including national and local codes. Best installation practices
should be followed.