Single Effect Double Lift Hot Water Driven Absorption Chiller
YHAU-CL / CH-DXS
Parallel Flow and Two Step Evaporator and Absorber Design
Efficiency , Reliability , Cost of Ownership The innovative 2-step evaporator and absorber design is more efficient than a conventional cycle . This ingenious design splits the absorption process into two steps , similar to how a seriescounter-flow arrangement splits the work between two chillers .
Parallel flow divides the LiBr solution flow between the lowand high- temperature generators into two parallel , balanced paths . One goes to the high temperature generator ( HTG ), while the other goes to the low temperature generator ( LTG ).
The result of the design allows the YHAU-CL / CH-DXS to perform the absorption function with lower solution concentrations than conventional designs , increasing efficiency and reliability , and decreasing cost of ownership .
Reliability is enhanced because the solution concentrations are lower leaving the absorber , which allows the entire cycle to operate at lower concentrations virtually eliminating the possibility of crystallization . Efficiency is enhanced because the YHAU-CL / CH-DXS can take advantage of lower than normal hot water temperatures in the generator . This is because at lower concentrations the solution will boil at a lower temperature in the generator .
Full Automatic Purging System As a standard feature , the unit has a fully automatic purging system comprising of electronic vacuum transmitter , solenoid valves and trending capability that ensures design performance and improves reliability . The operator does not have to worry about the sequence of purging for removing the non-condensable gases .
Chiller control The YHAU Control Center , standard on each chiller , provides the ultimate in efficiency , monitoring , data recording , chiller protection and operating ease .
The LCD display allows graphic animated display of the chiller , chiller sub-systems and system parameters ; this allows the presentation of several operating parameters at once . In addition , the operator may view a graphical representation of the historical operation of the chiller as well as the present operation . The panel is capable of communication with building management systems and is available in multiple languages .
Lastly , total operating cost decreases because of the lower concentration of the solution entering the generator , a wider temperature range of hot water can be used , reducing pumping horsepower .
Nominal capacity
YHAU-CL / CH-DXS Model |
50DXS |
60DXS |
80DXS |
100DXS |
130DXS |
160DXS |
200DXS |
250DXS |
320DXS |
400DXS |
500DXS |
600DXS |
700DXS |
800DXS |
Cooling Capacity kW |
176 |
211 |
281 |
352 |
457 |
563 |
703 |
897 |
1125 |
1406 |
1758 |
2110 |
2461 |
2813 |
COP ( low temp . hot water ) |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
0.72 |
At 7 ° C leaving chilled water , 95 ° C entering generator water , and 27 ° C entering condenser water . |
Technical data
YHAU-CL / CH-DXS Model 50DXS 60DXS 80DXS 100DXS 130DXS 160DXS 200DXS 250DXS 320DXS 400DXS 500DXS 600DXS 700DXS 800DXS
Dimensions
Length mm 1900 2200 2600 3200 3900 2700 3300 4000 4800 5800 5400 6200 7200 7900 Width mm 2100 2200 2500 2600 3000 Height mm 2700 3000 3300
Operating weight kg 8300 8900 9800 11100 12500 14600 16500 18700 22200 25600 31900 35900 40700 43700
Manufacturer reserves the rights to change specifications without prior notice .
YORK Air-Conditioning Products 97