3 3
R E T U R N T E M P E R A T U R E M A I N T E N A N C E - D N 2 5 / D N 3 2
4 R E G U L AT I O N S /
S TA N D A R D S / D I R E C T I V E S
The pump group may only be used in heating circuits taking into consideration the technical
limit values indicated in these instructions. The pump group must not be used in drinking water
applications. Improper usage of the pump group excludes any liability claims.
The wrapping materials are made of recyclable materials and can be disposed of with recyclable
materials.
5 T E C H N I C A L D ATA
D I M E N S I O N S
D N 2 5
D N 3 2
Centre distance
125 mm
125 mm
Width insulation
250 mm
250 mm
Height insulation
385 mm
443 mm
Installation length
340 mm
398 mm
C O N N E C T I O N S
Consumer (flow / return)
1" int. thread
1 ¼" int. thread
Heat generator (flow / return)
1 ½" ext. thread
1 ½" ext. thread
T E C H N I C A L D ATA
Opening pressure check valve (C-4)
4.9 mbars, can be opened
H Y D R A U L I C S
Max. pressure
6 bars
Max. temperature
110 °C
K
VS
-value [m
3
/h]
5.6
7.4
M AT E R I A L S
Valves and fittings
Brass / steel
Gaskets
EPDM
Insulation
EPP
E N E R G Y E F F I C I E N C Y I N D E X
COSMO CPH 2.0 6-25 or 6-30
< 0.18
5 . 1 R E T U R N T E M P E R AT U R E
M A I N T E N A N C E
