Airedale DeltaChill FreeCool 110kW - 1080kW - Manual (Page 137)

Chillers DELTACHILL
™
Chillers
137
Technical Manual :7022932_V1.9_11/2013
Hydronic Data
Waterside Pressure Drops
CAUTION Full design water flow MUST be maintained at all times. Variable water volume is
NOT recommended and will invalidate warranty.
Use the formula below to calculate the External Head Available:
Total Pump Head Available - Chiller Pressure Drop = External Head Available
Example: DCC033DR-08BMH0
Water flow : 15.6 l/s
Pump Option : 6
Chiller Pressure Drop : 39.6 kPa
Total Pump Head Available : 182 kPa
182 kPa - 39.6 kPa = 142.4 kPa
Pum
p
Ava
ila
bl
e
He
a
d
(
k
Pa
)
0
50
100
150
200
250
300
350
6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00
4
5
6
7
Water flow (l/s)
1 Chiller pressure drop refers to standard unit only. For pump options, please contact Airedale.
2 For glycol solutions, please refer to Glycol Data , on page 24.
NOTE To determine a flow rate from the available external head; adjust the flow until the unit
pressure matches the total head available (from the pump curve minus the pressure
drop of the unit). Checks can be made on the evaporator pressure drop to ensure
correct operation.