Bosch Greentherm T9800 SEC 199 - Page 37

6 720 816 815 (2018/08)Greentherm T9800 SE 160/199 | SEC 199
Installation instructions | 37
Fig. 32 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 (field supplied)
[6] Thermal expansion tank (as required)
[7] Air purge (field supplied)
[8] Cold water supply
[9] Check valve (field supplied)
[10] Thermostatic mixing valve (field supplied)
[11] Thermometer (optional) (field supplied)
[12] DHW outlet
[13] Thermostat (field supplied)
[14] Air handler
[15] Check valve (field supplied)
[16] Shutoff valve (field supplied)
[17] Circulation pump (only required if air handler doesn’t
includes internal pump) (field supplied)
[18] Relay (only required if air handler doesn’t includes
internal pump) (field supplied)