Airedale DeltaChill FreeCool 110kW - 1080kW - Manual (Page 10)

DELTACHILL
™
Chillers
10
Chillers
Installation, Commissioning and Maintenance Manual : 7025232 12 / 2013
Operating Limits
(For 100% Water)
Unit with Electronic Fan Speed HP Control (-20°C)
Minimum Ambient Air DB °C -20°C
Maximum Ambient Air DB °C Refer to Performance Data – Capacity Data
Minimum Leaving Water Temperature °C +5°C and+6°C (DCC and DCF respectively)
Maximum Return Water Temperature °C +18°C and+20°C (DCC and DCF respectively)
1 Temperatures lower than those stated can be obtained with the addition of glycol.
2 For conditions outside those quoted, please refer to Airedale.
ESEER Calculations The quoted EER figures cover the performance of the unit ONLY at the standard rating
conditions of 7/12°C water, 35°C ambient. The ESEER calculation method has been
developed by Eurovent to give a single value that is a realistic indication of the efficiency
of the Chiller across the year round range of operation.
The ESEER value is calculated from the unit’s performance at 20, 25, 30 and 35°C
ambient temperatures for all loading stages, and with a fixed 7°C supply temperature. All
calculations assume the system operates with 100% water.
ESEER = 0.03.EER
100%
+ 0.33.EER
75%
+ 0.41.EER
50%
+ 0.23.EER
25%
Where 0.03, 0.33, 0.41 and 0.23 are specified weighting factors for use on calculating
ESEER.
Temperature 35°C 30°C 25°C 20°C
Capacity Requirement 100% 75% 50% 25%
Percentage of Total Hours 0.03 0.33 0.41 0.23