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16.3
Hydraulic resistances
Unit
GC7000WP 125
Required
l/h
volumetric flow
rate at T = 20 K
Max. volumetric
l/h
flow rate
Resistance of the
mbar
boiler
Table 29 Hydraulic resistances
16.4
Residual head of pumps
Changing the pump output
The standard setting for the pump output is sufficient under normal
conditions or with the heating circuit distributor. With a measured T of
more than 20 K an adjustment of the pump output is desirable.
▶ Increase the pump output until T is 20 K ( § , 28).
-or-
▶ Reduce the installation resistance by installing a low loss header.
1
1200
1100
1000
2
900
800
700
600
500
400
300
200
3
100
0
0
1000
2000
Fig. 48 Residual head of pump GC7000WP 125, GC7000WP 145
[1]
Maximum adjustable discharge head of pump
[2]
Standard setting of discharge head
[3]
Minimum pump discharge head
[4]
Resistance of heat exchanger + connection + non-return valve
[5]
Resistance of heat exchanger + connection set
[6]
Resistance of heat exchanger
16.6
Commissioning report for the appliance
Customer/system user:
Surname, first name
Telephone/fax
System installer:
Order number:
Appliance type:
Serial number:
Date of commissioning:
Individual appliance | Cascade, number of devices: ......
Condens 7000 WP – 6721842519 (2022/03)
GC7000WP 145
5300
6300
7000
312
430
4
5
6
3000
4000
5000
6000
[l/h]
0010041018-002
16.5
Setting values for heating capacity
Output
Display
GC7000WP 125
[kW]
[%]
25
20
30
24
35
28
40
32
45
36
50
40
55
44
60
48
65
52
70
56
75
60
80
64
85
68
90
72
95
76
100
80
105
84
110
88
115
92
120
96
125
100
130
--
135
--
140
--
145
--
146
--
Table 30 Setting values for heating capacity
Street, house number
Postcode, town
(Complete a separate report for every appliance!)
Technical information and reports
Display
GC7000WP 145
[%]
17
21
24
27
31
34
38
41
45
48
51
55
58
62
65
68
72
75
79
82
86
89
92
96
99
100
49
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