YAES-SA
YAES-DSA
AIR COOLED
SCREW CHILLER
R134a REFRIGERANT
COOLING CAPACITIES
385 kW to 1845 kW
The YAES-SA (QPak-sa) range are single
packaged air cooled chillers. The larger
cooling capacity YAES-DSA (QPak-dsa)
are manufactured in two sections, with
integrated controls, to facilitate transport
and lifting.
There are two product families, standard
units and low sound units, which are
equipped with semi-hermetic twin helical
screw compressors and microprocessor
controls to provide high full and part load
efficiencies and reliable performance.
CONTENTS
Specification
Accessories and Options
Refrigeration Flow Diagram
Operating Limitations
Selection Guide - Cooling
Part Load Factors
Cooling Capacities
Selection Guide - Glycol
Cooling Capacities - Glycol
Desuperheater Data
Physical Data
Sound Data
Electrical Data
Connection Diagrams
Clearances
Dimensions
AVAILABLE MODELS, NOMINAL CAPACITIES TABLE 1
and SOUND PRESSURE LEVELS
The optional low sound version (Sonata) has an acoustically treated enclosure that
contains compressors, valves and piping systems and has specially designed low
sound two speed fans.
YAES-DSA units have a communications link, that must be plugged together,
between the two panels and a mixed liquid sensor that must be installed in the
common leaving liquid pipework from the two evaporators. All units are designed for
roof or ground level locations.
Page H.1
Doc. No. PC156-100 Rev.3 (01/06)
YAES-SA/DSA AIR COOLED SCREW CHILLER
dsa
dsa
YAES-SA 0405 0475 0545 0575 0645 0685
Cooling Capacity Standard Units kW 385 448 494 540 614 661
Energy Efficiency Ratio Standard Units EER 2.8 2.8 2.9 2.9 2.7 2.8
Cooling Capacity
Sonata
Units kW 369 430 474 518 589 635
Energy Efficiency Ratio
Sonata
Units EER 2.6 2.6 2.7 2.7 2.6 2.7
Standard Units dB(A) 63 65 65 66 68 67
Sonata Units
(Fans at High Speed)
dB(A) 56 58 58 59 60 59
Sonata Units
(Fans at low Speed)
dB(A) 53 54 54 54 56 56
YAES-SA 0715 0785 0905 0985 1075 1245 1405
Cooling Capacity Standard Units kW 723 787 853 922 1030 1180 1314
Energy Efficiency Ratio Standard Units EER 3.0 2.9 2.9 2.9 2.9 2.8 2.8
Cooling Capacity
Sonata
Units kW 694 756 819 886 989 1133 1261
Energy Efficiency Ratio
Sonata
Units EER 2.9 2.7 2.8 2.8 2.7 2.7 2.7
Standard Units dB(A) 68 68 69 69 69 70 70
Sonata Units
(Fans at High Speed)
dB(A) 62 62 62 62 63 63 63
Sonata Units
(Fans at low Speed)
dB(A) 59 59 58 60 60 60 60
YAES-DSA 1505 1575 1645 1715 1785 1855 1925
Cooling Capacity Standard Units kW
1446 1510 1574 1640 1710 1775 1845
Energy Efficiency Ratio Standard Units EER 3.0 2.9 2.9 2.9 2.9 2.9 2.9
Cooling Capacity
Sonata
Units kW 1388 1450 1511 1574 1641 1704 1771
Energy Efficiency Ratio
Sonata
Units EER 2.9 2.8 2.7 2.7 2.7 2.8 2.8
Standard Units dB(A) 69 69 69 70 71 71 71
Sonata Units
(Fans at High Speed)
dB(A) 63 63 63 64 64 64 64
Sonata Units
(Fans at low Speed)
dB(A) 60 60 60 60 61 61 61
Cooling capacities at 7°C leaving chilled liquid temperature and 35°C ambient.
Sound Pressure level at 10 metres in free field conditions.
Sound
Pressure
SPL at 10
metres
Sound
Pressure
SPL at 10
metres
Sound
Pressure
SPL at 10
metres
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