Glow-worm swift flow 80 - Page 8

8
221132B
4 H e a t i n g S y s t e m
Diagram 4.1
Diagram 4.1A
3771
4441
AVAILABLE PUMP HEAD
SYSTEM DIFFERENTIAL TEMPERATURE
SYSTEM HEATING LOAD
*
0
5
10
15
17
20
11
40
35
30.6
25
19.8
15
10
5
0
F
0
C
0
0
15
30
40
50
60
0
1
2
3
5
10
16
14
4
10
12
5
FEET
4.5
4.03.53.0
2.5 5.0
GALLONS/Min
LITRES/Min
FLOW RATE
18
1715
13
11
19 20
22
23
Btu/h x
1000 kW
21
ACCEPTABLE
DIFFERENTIAL
RANGE
*
P
U
M
P
C
U
R
V
E
-
S
E
T
T
I
N
G
3
P
U
M
P
C
U
R
V
E
-
S
E
T
T
I
N
G
2
REMAINING CONVEYING CAPACITY OF PUMP
SHOWING RELATIVE SYSTEM DIFFERENTIAL AT
VARIOUS SYSTEM HEATING LOADS.
M
GRUNDFOS
WILO
AVAILABLE PUMP HEAD
SYSTEM DIFFERENTIAL TEMPERATURE
SYSTEM HEATING LOAD
*
0
5
10
15
17
20
11
40
35
30.6
25
19.8
15
10
5
0
F
0
C
0
0
15
30
40
50
60
0
1
2
3
5
10
16
14
4
10
12
5
FEET
4.5
4.03.53.0
2.5 5.0
GALLONS/Min
LITRES/Min
FLOW RATE
18
1715
13
11
19 20
22
23
21
ACCEPTABLE
DIFFERENTIAL
RANGE
*
P
U
M
P
C
U
R
V
E
-
S
E
T
T
I
N
G
2
REMAINING CONVEYING CAPACITY OF PUMP
SHOWING RELATIVE SYSTEM DIFFERENTIAL AT
VARIOUS SYSTEM HEATING LOADS.
M
- Setting 2- Setting 1
P
U
M
P
C
U
R
V
E
-
S
E
T
T
I
N
G
1
Btu/h x
1000 kW