STIEBEL ELTRON Heat pumps, Technical Manual

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HEat pUmp managEr
F unction overview
 rs 232 interface for adjustment
and monitoring via a PC
 A three-wire data bUs provides
quick installation and system
extension through the MsM mixer
swimming pool module
 Control of a second heat source
 seven temperature inputs as set/
actual value display

Demand-dependent control of
seven different circulation pumps

equal load distribution for the
different compressors through
an integral automatic sequence
control
 input of the system and heat
pump frost limits
 At least ten hours power reserve
of the clock
 Automatic pump kick control
 reset option
 stored fault list with precise fault
code display
 Fast and precise fault diagnosis
with a system analyser incl.
temperature scanning of heat
pumps and peripherals without
additional equipment

Factory settings for time switch
programs for all heating and
DHw circuits
Appliance description
Heat pump manager wPM ii with
backlit symbol and plain text display.
Cascade controller for up to two heat
pumps. Control of one direct heating
circuit and one mixer circuit with
separate 7-day heating programs.
DHw heating is regulated via a freely
adjustable 7-day program using
time and temperature values. A
pasteurisation function is included.
optional direct or mixer-controlled
connection of a second heat source.
Adjustable heat-up program for
drying a screed with embedded
underfloor heating system. Hours
run meter for every connected heat
pump. integral solar controller,
heat meter or passive/active cooling
functions may be activated as
required. optional connection for a
Fe 7 room temperature controller
(accessory) that switches the direct
or the mixer circuit. optimisation of
the compressor use. A convenient
fault diagnosis either on site or from
a service centre is enabled through
an integral optical interface and
the accessories for a remote data
transfer. Available as fully wired unit
inside a wall mounting enclosure.
Function
the wPM ii heat pump manager is
suitable for all stiebel
eltron heating heat pumps.
A bUs cable that enables the
communication between the two
is routed on site between the
heating heat pump and the wPM
ii. All necessary functions required
by two single compressor or two
2-compressor heating pump systems
are provided by the wPM. external
communication is achieved via the
integral rs 232 interface. the heat
pump control panels incorporate the
iws (integral heat pump controller)
that regulates the heat pump
functions.
S
tandard delivery
WPMW II part no. 18 54 50

wall mounting enclosure with
fully wired wPM ii

three PtC sensors (outside/
contact/immersion sensor)

18 strain relief fittings
WPMS II part no. 18 54 51
 wPM ii
 three PtC sensors (outside/
contact/immersion sensor)
 Plug set
Heat pump manager (control unit)
for heat pumps
Type WPMW II WPMS II
Part no. 18 54 50 18 54 51
Specification
Voltage / frequency V/Hz 1/n/Pe ~ 230 V / 50 Hz
Power consumption VA 8
breaking capacity of the relay A 2
Protection iP 20
Ambient temperature °C 0 to +50
Weight and dimensions
Height mm 215 100
width mm 246 150
Depth mm 140 85
weight kg 1.5 0.5