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Bosch Greentherm 9800 SE 160/199 Manual page 34

Indoor residential and comme rcial tankless water heaters
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34 | Installation instructions
Fig. 26
Hydro air system with water heater
[1] Hot water outlet
[2] Cold water inlet
[3] Pressure relief valve
[4] Gas supply
[5] Shut off gas valve
[6] Thermal expansion tank (as required)
[7] Air purge
[8] Cold water supply
[9] Check valve
[10] Thermostatic mixing valve
[11] Thermometer (optional)
[12] DHW outlet
[13] Thermostat
[14] Air handler
6 720 816 815 (2016/10)
[15] Check valve
[16] Shutoff valve
[17] Circulation pump (only required if air handler doesn't
includes internal pump)
[18] Relay (only required if air handler doesn't includes
internal pump)
Greentherm 9800 SE 160/199 | SEC 199

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