Technical data

www.dimplex.de/en
51
2010
Heat pump/solar combo tank
Combo tank for the integration of solar energy
DHW heating in flow principle
PWD 750
Floor-mounted cylinder for heating and domestic hot water preparation with central flow, with three internally tin-plated heat exchan-
gers (external pipework necessary); consisting of a buffer tank for heating and a buffer tank for DHW; heating buffer tank used as a pre-
heating stage for DHW preparation. A circular plate prevents the different water layers with varying temperatures from becoming mixed
together; integrated heat riser pipes distribute the energy from an additional heat generator (e.g. solar, wood boiler) to the supplemen-
tary heating system and the domestic hot water preparation according to the temperature (flange connection for integration of the RWT
750 solar heat exchanger); 125 mm PE foam insulation delivered separately; colour: white.
PWD 750 combo tank:
200 l buffer tank for heating and 550 l buffer tank for DHW; one 1½“ sleeve each for immersion heaters in the heating buffer tank and the
DHW buffer tank (CTHK 635 and 636); tank charging for DHW preparation up to a maximum of 2.5 m
3
/h and 30 kW heat output; tilting
dimension 1920 mm.The VS PWD special accessory is available for the external pipework required by the PWD 750.
PWD 900 combo tank:
250 l buffer tank for heating and 650 l buffer tank for DHW; 1½“ sleeves for immersion heaters (two in the heating buffer tank and one
in the DHW buffer tank – CTHK 635 and 636); tank charging for DHW preparation up to a maximum of 3.0 m
3
/hand 40 kW heat output;
tilting dimension 2205 mm.
PWD 1250 combo tank:
400 l buffer tank for heating and 850 l buffer tank for DHW; 1½“ sleeves for immersion heaters (two in the heating buffer tank and one
in the DHW buffer tank – CTHK 635 and 636); tank charging for DHW preparation up to a maximum of 3.5 m
3
/hand 60 kW heat output;
tilting dimension 2,200 mm.
Observe the basic dimensions of the PWD 1250: Tank diameter 1000 mm (without insulation)!
Order reference Art.-Nr. for device type Diameter with insulation
mm
Width x Height x
Depth
mm
Weight
kg
PWD 750 349100
up to heat output max. 30 kW
up to water flow rate max. 2,5 m³/h
1040
790 x 1730 x 790 246
PWD 900 362860
up to heat output max. 40 kW
up to water flow rate max. 3,0 m³/h
790 x 2050 x 790 296
PWD 1250 362890
up to heat output max. 60 kW
up to water flow rate max. 3,5 m³/h
1200 1000 x 1950 x 1000 407
PWD 900 and PWD 1250: Delivery time on request!
Cannot be used for reversible heat pumps and water hardness above 14° dH! Dimensional specifications for width, height and depth ref
er to the
cylinder without insulation.
PWD 750 349100 4015627349100
PWD 900 362860 4015627362864
PWD 1250 362890 4015627362895
Connection kit for PWD 750 heat exchanger
VS PWD
For easy installation of pipework for the 3 integrated hot water heat exchangers of the PWD 750. Consisting of two DN16 (1000 / 500
mm) ready-to-use flexible stainless steel corrugated pipes, 13 mm insulation thickness, ¾“ cap nut and seal on both sides; maximum
operating pressure 7 bar.
Order reference Art.-Nr. for device type Weight
kg
VS PWD 354030
PWD 5
VS PWD 354030 4015627354036
Immersion heater for PWD combo tank
CTHK ...
For the combination tank PWD 750, immersion heaters with an unheated length of 110 mm are used to support heating and DHW
preparation.
Order reference Art.-Nr. Connection voltage Heat output
kW
Immersion depth
mm
Unheated length
mm
Weight
kg
CTHK 635 322160
3/N/PE ~400 V, 50 Hz
7.5 550
110
1.9
CTHK 636 322170
9.0 650 2.1
CTHK 635 322160 4015627322165
CTHK 636 322170 4015627322172
Reversing valve for PWD combo tank
DWUS 25
Change-over valve for switching from heating to DHW preparation in flow and/or return flow. Motor operated for short switching times
(set time open 12s, set time closed 6s); for a maximum volume flow of 2 m³/h; max. differential pressure 0.6; range of operating tempera-
tures for heating water 5-88 °C; max. ambient temperature 50 °C.
Order reference Art.-Nr. Connection heating
⬙
Nominal width
DWUS 25 355630
1 D N 2 5
DWUS 25 355630 4015627355637
Accessories for heat pump for heating purposes
Solar heat exchanger for PWD combo tank
RWT 750
For connection of an external supplementary heating and domestic water system with required system separation (e.g. solar) in connec-
tion with the PWD 750 combo tank. Consisting of a flange cover with antitwist protection and 2.3 m² heat exchanger (for a solar collector
area of up to approx. 15m²).
Order reference Art.-Nr. for device type Connection heating
⬙
Transmission capacity
kW
Weight
kg
RWT 750 351640
PWD 750
PWD 900
PWD 1250
¾ 9 10
RWT 750 351640 4015627351646