Bosch 830 ES Manual page 30

30 | Installation instructions
70
60
50
40
30
20
10
0
0.0
Fig. 38 Pressure drop curve
Fig. 39 Space heating diagram
[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] Atmospheric vacuum breaker
[8] Cold inlet
[9] Check valve
[10] Pump
6 720 644 936 (2013/01)
1.0 2.0
Flow (GPM)
830ES
3.0
[11] Thermostatic mixing valve
[12] Thermometer (optional)
[13] DHW outlet
[14] Water to water heat exchanger
[17] Thermostat
[18] Space heating zone
[19] Zone controller
[20] Space heating pump
[21] Expansion tank
[22] Pressure relief valve
4.0 5.0
6720644936-01.1V
830 ES