DUCTABLE AIR-COOLED SCROLL CHILLERS 30PA / PAC
Minimum volume of water admissible in the installation (cooling mode)
The electronic control for the 30PA units incorporates an auto-adaptive control for the compressor operating time based on the time set for anti-short-cycle. This control reduces the number of times the compressor is started up and permanently adjusts the system’s thermal inertia, favouring the reduction of the minimum volume of water in the installation. The size of the buffer tank can also be decreased since the unit will be stopped for less time.
Minimum volume l 101
100STD 120STD 160STD 180STD 90HEE
120 143 187 204 107
100HEE 120HEE 160HEE 180HEE
132 152 189 210
The calculation of the minimum water volume has been done for nominal EUROVENT conditions, only in cooling mode. This value is applicable for the majority of refrigeration applications (group with fan-coil units).
Note: the buffer tan k is indispensable in installations that operate with a reduced volume of water (group with an air handling unit) or for industrial processes. For applications with a heat pump, it is recommended that the buffer tank be used in order to maintain a stable temperature during the defrosting cycles.
Sound pressure level
Measurement conditions: in a clear ﬁeld, measured at a distance of 10 metres, directivity 2 and at 1,5 metres from the ground. 30PA/PAC
STD version 90STD
HEE version 120STD
Note: The sound pressure level depends on the installation conditions and, as such, is only indicated as a guide. Values obtained according to standard ISO 3744.