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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