Appendix
6
Installation and servicing instructions condensing gas boiler 800 - 24/29/43/60 and 800 - 24T25/29T25 H/V • edition 02/2006
61
Subject to modifications resulting from technical improvements !
Buderus • http://buderus-domestic.co.uk
6.2
Residual pump lift for wall-hung gas boilers
The residual pump lift graphics show the amount of pump lift that remains for the heating system
1
600
500
400
300
200
100
0
0
200
400
600
800
1000
1200
Flow [l/h]
1400
1600
1800
2
800 – 24T25
1
2
T=20K
Residual pump lift [mbar]
maximum modulation
minimum modulation
(in heating mode only)
1
600
500
400
300
200
100
0
0
200
400
600
800
1000
1200
Flow [l/h]
Residual pump lift [mbar]
1400
1600
1800
2
800 – 24
1
2
maximum modulation
minimum modulation
(in heating mode only)
T=20K
1
2
T=20K
0
200
400
600
800
1000
1200
1400
1600
1800
Flow [l/h]
Residual pump lift [mbar]
800 – 29T25
1
2
maximum modulation
minimum modulation
(in heating mode only)
600
500
400
300
200
100
0
1
600
500
400
300
200
100
0
0
200
400
600
800
1000
1200
Flow [l/h]
1400
1600
1800
2
800 – 29
1
2
T=20K
Residual pump lift [mbar]
maximum modulation
minimum modulation
(in heating mode only)
1
700
600
500
400
300
200
100
0
0
200
400
600
800
1000
1200
Flow [l/h]
Residual pump lift [mbar]
1400
1600
1800
2000
2200
2400
2600
2
800 – 60
1
2
maximum modulation
minimum modulation
(in heating mode only)
T=20K
T=20K
1
700
600
500
400
300
200
100
0
0
200
400
600
800
1000
1200
Flow [l/h]
Residual pump lift [mbar]
1400
1600
1800
2000
2
800 – 43
1
2
maximum modulation
minimum modulation
(in heating mode only)
T=20K