Technical data

www.dimplex.de 01.2012 | Project planning manual for heat pumps for heating and domestic hot water preparation | 49
Water-to-water heat pump 4.1
Table 4.1: Dimensioning table of the minimum well pump specifications required for water-to-water heat pumps at W10/W35 for standard installation set-ups with
sealed wells. The final specifications of the well pump must be agreed upon in consultation with the well constructor.
NOTE
The overcurrent relays integrated in the heat pumps must be set during
installation.
ATTENTION!
If an additional well pump is used, the protective motor switch at the site
must be checked and replaced if necessary.
Heat pump
Well pump
(recommended with standard)
Circulating pump with
bad water quality
and use of an
intermediate circuit with
plate heat exchanger
Well pump
compression
Cold water flow of HP
Heat output of
the heat pump
Refrigerating capacity
of the heat pump
Pressure drop of the evaporator
Well diameter from
Motor protection
bar
m
3
/h
kW kW Pa Inch A
WI 9ME Grundfos SP 2A-6
Not required
1
2.4 at 2 8.3 6.7 6,200 4" 4
WI 14ME Grundfos SP 3A-6
Not required
1
2.3 at 3.3 13.6 10.9 19,000 4" 4
Heat pump
Stainless steel coil heat exchanger
Well pump
(recommended with standard)
Circulating pump with
bad water quality
and use of an
intermediate circuit with
plate heat exchanger
Well pump
compression
Cold water flow heat pump
Heat output of the heat pump
Refrigerating capacity of the heat pump
Pressure drop of the evaporator
Well diameter from
Motor protection
bar
m
3
/h
kW kW Pa Inch A
WI 10TU x UWE 200-95
Not required
1
1. Stainless steel coil heat exchanger as standard!
2.4 2.2 8.4 6.8 6,200 4 0.52/1.4
WI 14TU x Grundfos SP 3A-6
Not required
1
2.7 3.1 13.3 11.1 14,000 4 1.4
WI 18TE x Grundfos SP 5A-4
Not required
1
1.8 4.0 17.1 13.9 12,000 4 1.4
WI 22TE x Grundfos SP 5A-4
Not required
1
1.6 5.0 21.5 17.6 20,000 4 1.4
WI 27TE x Grundfos SP 8A-5
Not required
1
2.2 7.0 26.4 21.3 16,000 4 2.3
WI 50TU Grundfos SP 17-2
Wilo Top-S 40/7
2
2. Control via M11 output (primary pump) on the heat pump manager
1.4 11.0 49.0 40.7 13,900 6 3.4
WI 100TU Grundfos SP 17-3
Wilo Top-S 50/7
2
2.1 21.2 98.5 80.5 19,000 6 5.5