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HWK 332HC
3
Scope of supply
3.1 Basic device
Hydraulic components
Dual differential pressureless manifold
Buffer tank, 100 litres
Unmixed heating circuit incl. circulating pump (self-regu-
lating - 3/4 stages), shut-offs and back-pressure feature
Primary circuit heat generation incl. circulating pump
(PWM input signal), shut-offs
2nd heat generator, electrical pipe heater, heat output 2 /
4 / 6 kW, secured via safety temperature limiter
300 litre domestic hot water cylinder incl. domestic hot
water circulating pump
Safety equipment:
Safety valve, start-to-leak pressure 3.0 bar
An additional expansion vessel can be connected
3.2 Switch box
CAUTION!
Before opening the device, ensure that all circuits are
powered down.
The switch box is located in the upper area of the hydro tower.
After removing the front cover, the switch box is freely accessi-
ble.
The switch box contains the supply connection terminals, heat-
ing contactors, Bus connections (connecting line to the heat
pump) and the heat pump manager (WPm OEM).
3.3 Heat pump manager
The integrated heat pump manager (WPM OEM) is a conven-
ient electronic regulation and control device. It controls and
monitors the entire heating system based on the external
temperature, as well as domestic hot water preparation and
safety systems.
The external temperature sensor (to be connected on site) in-
cluding the fixing accessories, is included in the scope of sup-
ply of the heat pump manager.
The enclosed operating instructions describe the function and
use of the heat pump manager.
www.dimplex.de
4
4.1 Building management
The heat pump manager can be connected to a building man-
agement system network via supplementation of the relevant
interface plug-in card. The supplementary installation instruc-
tions of the interface card must be consulted regarding the
exact connection and parameterisation of the interface.
The following network connections can be made on the heat
pump manager:
Modbus
EIB, KNX
Ethernet
CAUTION!
If the heat pump or circulating pumps are controlled
externally, an flow rate switch is required to prevent the
compressor from being switched on when there is no volume
flow.
452162.66.25-EN · FD 0402
Accessories
technology
English
EN-3
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