11. PRESSURE DROPS
0,0
50,0
100,0
150,0
200,0
250,0
0 20000 40000 60000 80000 100000 120000 140000 160000 180000 200000
2800
3000
3300
3600
(kPa)
Water flow rate l/h
LOW USEFUL HEAD COLD PREVALENCE (°-L)
11.1. TOTAL PRESSURE DROPS (°-L)
Standard NRL unit (° - L).
The pressure drops include:
− EVAPORATORS
− WATER FILTERS
− HYDRAULIC CIRCUITS
Diagrams pressure drops are related to
an average water temperature of 10 °C.
The following table shows the correction
to apply to the pressure drops when the
average water temperature varies
The chiller consists of two hydraulic
circuits per module.
The pressure drops indicated in the
graphics are relative to a single circuit
SINCE THE HYDRAULIC PARALLEL IS IN
CHARGE OF THE CUSTOMER OR THE
PERSON IN CHARGE.
NB:
The water outlet probe (WOP) with its
trap is free, near the electrical box,
remember to insert it in the collector
of the outlet hydraulic parallel, using a
sleeve of ½ inch.
0
50
100
150
200
250
300
350
0 20000 40000 60000 80000 100000 120000 140000 160000 180000 200000 220000 240000 260000 280000 300000
2800
3000
3300
3600
Pressure drops (kPa)
TOTAL COOLING PRESSURE DROP
Water flow rate l/h
21
INRLPY. 02.10 4086916_01
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