Aerco SmartPlate SPDW42 Посібник із застосування - Сторінка 5
Переглянути онлайн або завантажити pdf Посібник із застосування для Обладнання для запису Aerco SmartPlate SPDW42. Aerco SmartPlate SPDW42 15 сторінок. Boiler interface
Друкувати сторінкуSmartPlate Application Guide for Boiler Interface
SD-A-784 rev C
Large conventional boilers are not designed to condense; hence they cannot tolerate return
water temperatures below 140˚F.
SmartPlate will be well below 140˚F due to the efficient design of the plate heat exchanger.
In order to protect a conventional boiler, the system designer must engineer a bypass line as
shown in Figure 3 to ensure that the return water temperature to the non -condensing boiler
never drops below 140˚F.
3.2 Small Volume Systems
Many of today's high efficiency systems incorporate small modular low-mass condensing boilers
o
operating with 40
F or 60
This design reduces the volume of water in the system and requires the boilers to be capable of
modulating quickly across a greater operating range to meet system load transitions. The higher
the boiler turndown, the more effective it will be at transitioning to meet load requirements
without cycling.
AERCO boilers, which feature the highest turndown in the industry, are best suited for such
applications. However, no boiler is capable of matching the speed and diversity of
instantaneous domestic load demands without cycling and lowering overall system efficiency
induced by cycling losses.
01/08/2016 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
Technical Application Guide
Figure 3: Multiple SmartPlate Heaters in Parallel
(This figure depicts boiler water piping only)
The average boiler return water temperature from the
o
F temperature differentials.
SP-1010
TAG-0026_0B
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