DAYLIFF DQA25/60 Manuale d'installazione e d'uso - Pagina 4

Sfoglia online o scarica il pdf Manuale d'installazione e d'uso per Sistema idrico DAYLIFF DQA25/60. DAYLIFF DQA25/60 16. Circulator pumps

Stampa la pagina
Congratulations on selecting a Dayliff DQ Circulator Pump . They are
manufactured to the highest standards and if installed and operated
correctly will give many years of efcient and trouble free service. Careful
reading of this Installation Manual is therefore important, though should
there be any queries they should be referred to the equipment supplier.
DAYLIFF DQA is a revolutionary variable speed controlled circulator pump
designed for hot water circulation in heating, cooling and solar applications. The
pump is provided with a number of unique features:
• Variable Speed inverter technology that enables the pump to selectively
operate on a constant curve, proportional pressure where pressure is
adjusted according to system demand and constant pressure where
pressure remains constant irrespective of system demand.
• Three selectable speeds so the pump performance can be matched to
system requirements.
• Fully automatic function which continuously adjusts pump output to
system demand and thus optimises energy consumption.
• Display indicating power consumption and as well as alarm and
warning conditions.
Pump construction is cast iron for the pump housing, stainless steel for the rotor
can and composite plastic for the impeller. Pumps are supplied complete with BSP
union connections.
Speed
1
2
European Level of
energy Efficiency
1
7
6
Speed
3
5
4
3
2
Pressure Curve
1
0
DQA 25/60
CP2
PP2
PP1
Speed III
Speed I
2
4
6
8
FLOW RATE(m/hr)
10
12