2 8 | Applications manual |
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4.2 Cascading unit applications
A cascading application should be considered if the potential hot water demand exceeds the capacity of one GWH 715 ES or
GWH C 800 ES. The cascading set up supports variable flow inputs and is designed for large homes and commercial applications.
4.2.1 GWH 715 ES and GWH C 800 ES cascading
Cascading allows up to two appliances to be connected in parallel. One of the appliances will serve as the controlling Master appliance and will attempt to meet the hot water demand. If the hot water demand is beyond the capacity of the Master appliance, a signal is sent to the Slave appliance to begin operation.
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hot | outlet |
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Ariston Pro GL8Ti recommended
Bosch GWH 715 ES or
Bosch GWH C 800 ES
• The plumbing must be connected in the reverse
| return method with a minimum number of elbows | ||||||||
| to aid in balancing pressures between the two | ||||||||
| appliances. |
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| • If a domestic recirculation system is desired, | ||||||||
| recirculate the water through the Ariston ProTi | ||||||||
| water heater as seen in chapter 3.4. | ||||||||
cold | • Locate appliances close together for | ||||||||
| improved performance. |
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| • Follow industry plumbing practices when installing | ||||||||
| multiple appliances |
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| • Minimum pipe diameter: ¾" |
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| • Minimum water pressure: 50 psi |
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| • Maximum distance between appliances: 36" | ||||||||
| • Insulate pipes to prevent heat loss. | ||||||||
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Note: This drawing is conceptual in nature and does not address all design, installation or safety considerations.
Additional safety and/or auxiliary equipment may be needed. This diagram is for reference use by officials, designers and licensed installers.
It is expected that installers have adequate knowledge of accepted industry practices for the equipment, procedures, and applications involved. Drawing is not to scale.
Drawing # CA1
CN revA 10/07
Application manual 11.2007 | Bosch Water Heating |