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Advanced Tank Loading Commercial Hot Water System - Bosch C 1210 ES Applications Manual

Bosch therm tankless water heaters
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THERM Tankless Water Heater Applications Manual
12.3 Advanced tank loading commercial hot water
system
The following application outlines an advanced tank loading
application for commercial hot water systems (e.g. hotels, fi tness
centers). This design allows for complete isolation of the system for
maintenance reasons and gives the ability to bypass certain system
components in case of failure. A second hot water storage tank is
shown for additional hot water supply and back up in case of tank
failure.
System parameters:
See Chapter 5.1 and 5.2 for pump parameters
Applicable Bosch Models:
•Bosch 830 ES
•Bosch C 1050 ES
hot
Thermostatic
mixing
valve
Note:
Drawing is not to scale.
BOSCH THERMOTECHNOLOGY CORPORATION
•Bosch 940 ES
•Bosch C 1210 ES/ESC
cold
hot
cold
Service
Tankless
valves
link
Aquastat / Water Heater setpoints
Model Number
C 1210 ESC
830 ES
940 ES,
C 1050 ES,
C 1210 ES
* If local codes require higher setpoint or to increase the recovery
capacity of the water heater, contact Bosch Thermotechnology.
hot
cold
hot
Symbols
Pressure
relief
valve
Aquastat setpoint
Water heater
setpoint
≤140°F
14°F above Aqua-
stat setpoint
≤126°F*
140°F
cold supply
cold
Flow
Circulator
direction
Data subject to change without notice | 01.2011
| 31
DHW

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