Parallel Unit Applications - Bosch C 1210 ES Applications Manual

THERM Tankless Water Heater Applications Manual

9.2 Parallel unit applications

Two Bosch water heaters plumbed in parallel will have double the
fl ow rate. However, the activation rate increases with each unit
added in parallel.
Example:
1 unit - 0.5 GPM activation rate
2 units - 1.0 GPM activation rate
3 units - 1.5 GPM activation rate
hot
Note:
Drawing is not to scale.
BOSCH THERMOTECHNOLOGY CORPORATION
Applicable Bosch Models:
•Bosch 520 PN
•Bosch 520 HN
•Bosch 660 EF/EFO
•Bosch 830 ES
•Bosch 940 ES/ESO
•Bosch C 1050 ES
•Bosch C 1210 ES/ESC
*see text above about activation rate
cold hot
cold
Data subject to change without notice | 01.2011
| 23
Symbols
Pressure
relief
valves
Flow direction
Service
valve
cold
hot