44
9 - TECHNICAL INFORMATION
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Q [l/s]
Δ
P [kPa]
A B
C D E F H
I J
G
A = 65D-70D
B = 75D
C = 80D
D = 85D
E = 90D-100D
F = 110D
G = 115D
H = 120D
I = 135E
J = 150F-165F-180F
EXCHANGER PRESSURE DROP PARTIAL ENERGY RECOVERY
EXCHANGER PRESSURE DROP TOTAL ENERGY RECOVERY
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2345678910
Q [l/s]
Δ
P [kPa]
A
A = 65D
B = 70D-75D-80D
C = 115D-120D
D = 135E
E = 85D
F = 150F
G = 165F
H = 90D-100D-180F
I = 110D
B C D E F G H I
CORRECTION FACTOR FOR ANTIFREEZE SOLUTIONS
Q = water flow
dP = pressure drop
Q = water flow
dP = pressure drop
Internal exchanger (evaporator)
5% 10% 15% 20% 25% 30% 35% 40%
Freezing temperature
°C -2,0 -3,9 -6,5 -8,9 -11,8 -15,6 -19,0 -23,4
Safety temperature
°C 3,0 1,0 -1,0 -4,0 -6,0 -10,0 -14,0 -19,0
Cooling Capacity Factor
Nr 0,995 0,990 0,985 0,981 0,977 0,974 0,971 0,968
Compressor input Factor
Nr 0,997 0,993 0,990 0,988 0,986 0,984 0,982 0,981
Internal exchanger Glycol solution flow Factor
Nr 1,003 1,010 1,020 1,033 1,050 1,072 1,095 1,124
Pressure drop Factor
Nr 1,029 1,060 1,090 1,118 1,149 1,182 1,211 1,243
% ethylene glycol by weight
The correction factors shown refer to water and glycol ethylene mixes used to prevent the formation of frost on the exchangers in the water circuit during inactivity in winter.
External exchanger (condenser)
5% 10% 15% 20% 25% 30% 35% 40%
Freezing temperature
°C -2,0 -3,9 -6,5 -8,9 -11,8 -15,6 -19,0 -23,4
Safety temperature *
°C 3,0 1,0 -1,0 -4,0 -6,0 -10,0 -14,0 -19,0
Cooling Capacity Factor
Nr 0,995 0,990 0,985 0,981 0,977 0,974 0,971 0,968
Compressor input Factor
Nr 0,997 0,993 0,990 0,988 0,986 0,984 0,982 0,981
Internal exchanger Glycol solution flow Factor
Nr 1,003 1,010 1,020 1,033 1,050 1,072 1,095 1,124
Pressure drop Factor
Nr 1,029 1,060 1,090 1,118 1,149 1,182 1,211 1,243
% ethylene glycol by weight
The correction factors shown refer to water and glycol ethylene mixes used to prevent the formation of frost on the exchangers in the water circuit during inactivity in winter.
* MAX. REDUCTION EXTERNAL EXCHANGER INLET WATER TEMPERATURE
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