AHI Carrier Catalog | Page 417

HIGH-TEMPERATURE AIR-TO-WATER HEAT PUMPS 
61AF 022-105

Available static system pressure
Plate heat exchanger pressure drop - for pure water at 20°C
61AF 022-045

61AF 055-105

30

50
3

4

3

20

2

1

15

40

Pressure drop, kPa

Pressure drop, kPa

25

10
5
0

0

1

2

3

4

1
20

10

0

5

2

30

0

2

4

1
2

61AF 022
61AF 030

3
4

61AF 035
61AF 04 5

6

8

10

Water flow rate, l/s

Water flow rate, l/s

1
2

61AF 055
61AF 075

3

61AF 105

The available pressure curves for the 61AF units are given for
the maximum variable speed.

61AF 022-035

Data applicable for:
-- Fresh water 20 °C
-- In case of use of glycol, the maximum water flow is
reduced.

61AF 045-055
130

110

120

100

110

80
70
60

a

50
40

b

30

c

100
90

a

80

b

70
60
50

0,4

0,9

1,4

1,9

0,5

2,4

1,5

1
2
3

2,5

3,5

4,5

5,5

Water
l/s
Débitflow
d'eau,rate,
l/s

Water flow
l/s
Débit rate,
d'eau, l/s

AIR TREATMENT

90

Pression
disponible,
Presssure
head,
kPakPa

Pression
disponible,
Presssure
head,
kPa kPa

120

20

HEATING

Available system pressure for units with hydronic module

61AF 022
61AF 030
61AF 035

1
2

61AF 045
61AF 055

61AF 075-105
130
120
110

90
80
70

CONTROLS

Presssure
head, kPa
Pression disponible,
kPa

100

60
50

b

a

40
30
20
1,0

C

1
2

A

2,0

3,0

4,0

5,0

Water flow
l/s
Débit rate,
d'eau, l/s

6,0

61AF 075
61AF 105

R

R

I

E

R

2

0

1

6

/

2

0

1

7

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