Caleffi Hydronic Solutions Contact: Rex Gillespie, Director of Marketing Phone: (414)

Transcription

1 Caleffi North America, Inc W. Milwaukee Road Milwaukee, WI T: F: LITERATURE RELEASE Caleffi Hydronic Solutions June 10, 2010 Contact: Rex Gillespie, Director of Marketing Phone: (414) idronics Edition 6 Addendum Solar Thermal Combisystems Since the original publication of idronics Edition 6, methods have been developed that improve the performance of Caleffi DISCAL Air Separators when used in drainback combisystems. These changes increase the pressure differential across the venting mechanism with the separator. They also capture ejected by the separator mechanism and return it to the at the top of the storage tank, thus helping maintain a more consistent pressurization within the system. All revised drawings show an return from the outlet of the DISCAL Air Separator to a fitting at the top of the storage tank. Caleffi has adapter fittings available to transition from the outlet threads of the DISCAL Air Separators (Model 551) to ¼-inch NPT threads. The return tubing could be ¼-inch copper or other tubing suitable for the temperature and pressure ratings of the system. The drawings shown on the pages that follow replace those shown in the original schematics in idronics Edition 6. If you have a printed copy of this edition, print this document (in color if possible), cut out each schematic and tape it in place over the original drawing. idronics Edition 6, Rev 1 is available for download on our website and includes all modifications. The following figures in idronics Edition 6 have been modified: 5-9, 5-10, 5-13, 5-14, 5-15 CALEFFI Creating innovative, superior performance products that help customers live comfortably and economically, while softening their impact on the environment. # # #

2 Figure 5-9 revised: (idronics #6 page 31) All solar circuit piping sloped minimum 1/4" per ft. pressure! control valve time! delay! recirculation return A AB B 3-way! diverter! valve 3-way! motorized! mixing! valve pressureregulated end switch leads from actuators space-heating circuits! (highly zoned) end switch leads thermostat closely spaced tees manifold valve actuator DHW coil differential! controller

3 Figure 5-10 revised: (idronics #6 page 32) All solar circuit piping sloped minimum 1/4" per ft. anti-condensation! mixing valve boiler! conventional boiler! (requires protection! from flue gas condensation) room! thermostat time! delay! DHW coil A B AB return! diverter valve! reset! controller (C1) zone! s heating! load stor. 3-way! motorized! distribution! mixing valve! (reset control) anti-scald! tempering! valve differential! controller

4 Figure 5-13 revised: (idronics #6 page 35) thermo radiator valves! on each return! flow! switch stainless steel! brazed plate! heat exchanger

5 Figure 5-14 revised: (idronics #6 page 36) thermo radiator valves! on each return! flow! switch stainless steel! brazed plate! heat exchanger! w/ check flow! switch stainless steel! brazed plate! heat exchanger Domestic supplied by solar from storage tank

6 Figure 5-15 revised: (idronics #6 page 37) thermo radiator valves! on each return! Space heating supplied by solar from storage) thermo radiator valves! on each return! Space heating supplied by boiler (storage tank serves as buffer)