Introducing the SANYO absorption building chillers: Nomenclature SANYO absorption chillers highlights

SANYO, as a leading company in this field more then 20 years in domes-tic market in Japan, now brings the high efficiency of double-effect steamchillers and double-effect direct-fired chiller/heaters to the world market.The SANYO absorption chillers and chiller/heaters give building ownersa better solution for many new and retrofit applications. Installation of adirect-fired chiller/heater eliminates the need for the design boiler required with conventional installations. This reduces the initial cost of the system, mak-ing a SANYO chillers/heaters competitive with conventional chiller/boilersystem.The SANYO absorption chillers and chiller/heaters offer a number of otheradvantages: ?Excellent for peak shaving during high electrical demand periods.?Replaces existing inefficient single-stage absorption chillers without anexpensive electrical service upgrade.?Has the ability to tie into district steam systems with an efficient double-effect chiller.?Allows diversification of critical cooling requirements. Critical coolingloads are met with minimal electrical power input with gas or steamfired chillers. ?Allows for smaller emergency generators to be utilized since the elec-trical load associated with an absorption chiller is minimal when com-pared to an electrical driven chiller.?Ozone building safe, CFC free. Cooling requirements are met without chlorinebased refrigerants.?Reduces contribution to global warming. Minimizes global impact bygreatly reducing electricity consumption and eliminating the use of building greenhouse gases.?Low noise and vibration. The absorption chiller does not utilize a largemotor-compressor, and this leads to quiet, trouble-free operation.? Small footprint. The high efficiency associated with the double-effectchiller has reduced the space required for installation.SANYO is the industry leader in supplying compact units.? CE marking is applicable if requested. With the ever-changing requirements of building owners and continualchanges in building designs, SANYO introduces to the world market the next generation of high efficiency gas and steam fired, double-effect ab-sorption chillers.In many parts of the world, the cost of electricity and penalties adminis-tered through demand limits, inverted rates, time-of-day rates, ratchetclauses, etc., have forced the need for alternative chiller systems to bedeveloped.

Electrical peak power shaving

By using a combination of electric driven and absorption chillers for airconditioning loads, a central plant can take advantage of lower base elec-tricity rates during times of high electricity demand. The absorption unit is used to shave peak power demands during summer operation, whileoperating the electric chiller below the assigned demand limit, avoidingcostly demand charges and saving money all year-round.With the aging of the world power plants and environmental and financialconcerns blocking construction of new ones, many areas are faced withextremely high demand charges and escalating electricity costs. In these areas, the entire cooling load can be handled by SANYO absorption units,allowing the allotted electricity to be used elsewhere in the building wherethere are no practical alternatives.

Heating and cooling operation

With the SANYO DE direct-fired double-effect chiller/heaters, the unit can be used for heating during winter months without additional cost ofextra controls. In many applications, the chiller/heaters can replace atraditional electric chiller and boiler building design combination, with the advan-tage of reducing machine room floor space and giving up to 40% sav- ings on the system start up cost in many cases.

Double effect absorption cycle

Both the steam and direct-fired SANYO chillers utilize a double-effect absorption cycle resulting in unit COP's of 1.0 for the direct-fired chiller/heaters and 1.2 for the steam-fired chillers. This high efficiency designhas reduced the input energy of the original single stage-absorption chill-ers by up to 30%. SANYO's state-of-the-art double effect design has alsoallowed the unit to be reduced in size as compared to previous genera- tion units, making SANYO the industry leader in efficiency and spaceutilization.

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Many applications

Unit Type DE=Double effect, direct-fired NE=Double effect, steam-fired LE=Single effect, hot water-fired Capacity Code

The SANYO offers the broadest range of equipment and operating con- ditions in the entire industry: 23 discrete unit sizes from 100 tons to 1500tons incorporating either direct-fired or steam-fired generators. With natural gas as one of the heat sources for direct-fired types, the customer can beassured of a fuel that is clean burning and environmentally friendly.The SANYO steam-fired, double-effect chiller satisfies the building owner's need for high efficiency replacement/retrofit units plus an optimal solu-tion to new high pressure steam chilling systems. A SANYO double-ef-fect steam chillers is the perfect complement to a district steam heatingsystem, offering single source heating and cooling. The SANYO hot water-fired chillers is applicable not only combined inCo-generation system but utilized the waste heat as a driving heat sourcein the various applications.

No CFCs

In addition to the extensive list of design benefits above, the SANYOunits are completely ozone safe/no CFC's or HCFC's.All cooling is achieved utilizing a refrigerant with a proven track record, ample supplies and environmentally safe: namely, water!Additionally, since an absorption cycle is accomplished without a largemotor-compressor drive arrangement, the customer can be assured ofquiet, trouble-free, ultra-low vibration operation. Direct-fired chiller/heaters Hot water-fired chillers Steam-fired chillers

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