STIEBEL ELTRON WPMW II User manual

Installation and commissioning as well as the maintenance of this equipment must only be carried
out by an authorised qualified contractor in accordance with these instructions.
WPMW II,WPMS II
Heat pump manager for heating system heat pumps
Operation and installation instructions
264755
Index
Operating instructions 2
1 Equipment overview 2
1.1 Equipment description 2
1.2 Operating and installation instructions 2
1.3 Maintenance and care 2
1.4 Important information 3
1.5 Operation 3
2 Adjustments 4
2.1 Operating modes (Control level 1) 4
2.2 Equipment menu (Control level 2) 5
2.3 Remote control FE 7 11
Installation instructions 12
1 Standard delivery 12
2 Wall mounting 12
3 Control panel mounting 12
4 Electrical connection 12
4.1 Electrical cables/leads 12
4.2 Fuses 12
4.3 Mains supply 12
4.4 Circulation pump and mixers 12
4.5 Temperature sensor 12
4.6 BUS connection 14
4.7 Remote control FE 7 14
4.8 Connection array WPMW II 15
4.9 Connection array WPMS II 16
5 Commissioning 17
5.1 BUS initialisation 17
5.2 System configuration 17
5.3 Reset options WPM II 17
5.4 Reset options IWS 17
5.5 Commissioning summary 18
5.6 Commissioning details 20
5.7 Fault remedies 27
5.8 Commissioning list 31
5.9 Checking adjustments at the IWS 32
6 Tables 33
6.1 Specification 33
6.2 Standard settings 33
6.3 Heating and DHW programs 34
Systemsketch 1 35
Systemsketch 2 35
Systemsketch 3 36
26_03_01_0019

2
C26_03_01_0197
Operating instructions for user and contractor
1.1 Equipment description
The heat pump manager of the second ge-
neration, in short WPM II, is designed to take
over all control and regulating processes for all
heat pumps from Stiebel Eltron.
Connected heat pumps are controlled via the
digital BUS connection, which handles the bi-
directional data exchange.
The following heat pump types can be con-
trolled with the WPM II:
WPL 10 A / I / IK
WPL 13, 18, 23, 33
WPW-M 13, 18, 22
WPF-M 10, 13, 16
TTL 10 A / I / IC
TTL 13, 18, 23, 33
TTW-M 13, 18, 22
TTF-M 10, 13, 16
Cascade control
Up to six output stages can be controlled for
heat generation.The permissible maximum
configuration for cascade control is subject to
the type of heat pumps used.
6 Single compressor HP
3 Dual compressor HP with identical com-
pressors
2 Dual compressor HP with different com-
pressors
From the third connected heat pump up-
wards, an MSM must be used to control the
buffer loading pumps
Summary of available functions
RS 232 interface for adjustment and moni-
toring via PC
The three-wire databus enables rapid instal-
lation and system extension using the MSM
mixer module
Control of a second heat generator for
DHW and central heating
9 Temperature inputs as set/actual value
display
Demand-depended control of seven differ-
ent circulation pumps
Input of the system and heat pump frost
protection limits
At least 10 h backup power for the clock
Automatic kick-start pump control
Reset option
Stored fault list with precise fault code indi-
cation, together with date and time display
Rapid and accurate fault diagnostics using
system analysis including temperature scan
for heat pump and peripheral equipment
without additional equipment.
Factory settings for time switch programs
for all heating and DHW circuits
Integral solar differential controller or heat
meter
1.2 Operating and installati-
on instructions
Subject to the relevant system, ob- serve the operating and installation
instructions of the components of which
the system comprises.
Keep these operating and installation in-
structions safely and pass them on to any
new user, should the equipment change
hands, and let your contractor check their
content in conjunction with required
maintenance and repair work.
1.3 Maintenance and care
Maintenance work, e.g. checking the electrical safety, must only be
carried out by qualied personnel. Protect
the equipment from dust and dirt ingress
during building work.
A damp cloth is sufficient for cleaning all plas-
tic parts. Never use scouring or solvent-based
cleaning agents.
BCG DEF
A
A Display
B Rotary selector
C Rotary selector Reset / Auto
D Programming key
E Programming indicator
F Optical interface RS 232
G Control flap (open)
System status display
1 Mixer opens
2 Mixer closes
3 Circulation pump
heating circuit 2 "mixer circuit"
4 Circulation pump
heating circuit 1 "radiator circuit"
5 DHW loading
6 Compressor 1
7 Buffer cylinder loading pump 1
8 Compressor 2
9 Buffer cylinder loading pump 2
10 Heat source 2 (central heating)
11 Equipment menu
6
7
8
9
10
1
2
3
4
5
11
1 Equipment summary
Roomtemp 1
Roomtemp 2
Temp DHW.
Day / Hour
Holiday / Partyprog.
Info temp
Heating curve
Heating prog.
Prog. Acqua San.
First Start-up
Room Temp 1

3
1.4 Important information
The heat pump manager must only
be installed and maintained by quali-
ed contractors.
Heat pump types
The description of individual functions vari-
es between the different heat pump types.
Therefore, three types of heat pump are
determined, which are identied in this do-
cument as HP type 1, 2 or 3.
HP type 1:
Heat pump with ammable refrigerant and
without internal secondary heater.
HP type 2:
Heat pumps with safety refrigerant and in-
ternal secondary heater.
WPF 5, 7, 10, 13
WPW 7, 10, 13, 18
WPL 13, 18, 23, 33
HP type 3:
Heat pumps with safety refrigerant and ex-
ternal secondary heater.
WPF-M 10, 13, 18
WPL 13, 18, 23, 33
1.5 Operation
The operation is split over three control levels.
Control levels 1 and 2 are accessible to user
and contractor alike. Control level 3 is only
designed for qualified contractors.
Control level 1 (control ap closed)
This enables the adjustment of operating
modes, such as standby mode, programmed
operation, constant day or setback mode, etc.
(see section 2.1).
Control level 2 (control ap open)
This enables system parameter, such as room
temperatures, DHW temperatures, heating
programs, etc. to be adjusted (see section 2.2).
Control level 3 (for contractors only)
This level is protected by a code and should
only be used by contractors. At this level,
heat pump and system-specific details are
determined (see chapter 5 of the installation
instructions).
Vital facts in brief
Adjustments
All adjustments follow the same pattern:
Opening the control ap toggles the manag-
er into the programming mode.An indicator
symbol is shown at the bottom of the
display at system parameter room temp. 1.
Turning the rotary selector allows you to
move the indicator to that system param-
eter which you want to change. To change
the system parameter, press .Whenever
the red indicator above illuminates, you
can modify the current value by turning the
rotary selector . Press again ; the il-
luminator then goes out and the new set
value has been saved.You can modify further
values for this parameter by pressing , if
the red indicator has not been extinguished
above .The programming step can only
be terminated when the red indicator has
gone out.
Terminating programming
You can terminate the programming proc-
ess after entering and saving the require
parameter changes by closing the control
ap. However, if you want to make further
changes, turn the rotary selector until
the display shows BACK, then press .This
will return you to the previous level. Closing
the control ap with illuminated indicator
above returns the manager into its original
position, The modied value will not have
been saved.
During initial start-up, a system check will be implemented, e.g.
all sensors are currently connected are
displayed. Sensors not connected before
the system went ‚live‘ are not registered
by the manager and are therefore not
displayed.The indicator symbol skips the
system parameter..
Example: The system parameters DHW temp.
and DHW prog. will be skipped if, at the initial
start-up, the DHW cylinder sensor was not
connected.Values for these parameters can
therefore not be programmed.

4
2 Adjustments
2.1 Operating modes
(Control level 1)
The operating modes are changed by pressing
with the control flap closed.
Standby mode
Frost protection is activated for central hea-
ting and DHW operation.The display indicates
frost protection when the flap is closed.
The set DHW temperature is permanently
set to 10 °C; the set central heating flow tem-
perature is calculated in relation to a set room
temperature of 5 °C, see point 3.
Application: During holidays.
Automatic mode
Heating subject to time switch program (ap-
plies to HC1 and HC2), changeover between
day temperature and setback temperature.
DHW in accordance with a time switch pro-
gram, changeover between day temperature
and setback temperature, see point 4.With
this operating mode, an additional symbol (sun
or moon) indicate, whether heating circuit 1 is
currently in day or in setback mode.
The remote control is only active in this
mode.
Application: If you need heating and DHW.
Constant day mode
The heating circuit is constantly held at the
day temperature (applicable to HC1 and
HC2).
DHW according to time switch program.
Application: In low energy houses without set-
back operation.
Constant setback mode
The heating circuit is constantly held at the
setback temperature (applicable to HC1 and
HC2).
DHW according to time switch program.
Application: During weekends.
DHW operation
DHW in accordance with a time switch pro-
gram, changeover between day temperature
and setback temperature. Frost protection is
activate for central heating operation.
Application:When the heating period ends;
only DHW should be generated (summer
mode).
Heat source (HS 2)
This setting activates the emergency mode.
With the HP type 2, the HS 2 provides cen-
tral heating and DHW loading during this
operating mode, independent of the dual
mode changeover point of heating and DHW
loading.
For HP types 1 and 3, HS 2 for heating and
DHW must be set to ON at control level 3;
only then can the operating mode be selected.
With this operating mode, HS 2 takes over
the heating or DHW function, independent of
the dual mode changeover point.
Error message (ashing)
ndicates faults in the heat pump ystem.
Inform your local contractor
Display (including all elemets)
14-digit plain text display
Compress run
Heating times for central heating and DHW (black)
2. HS RUN
Switching time pairs for central heating and DHW operation
DEFROST
Day mode HC 1
Setback mode for heating circuit 1
Heat source 2 (emergency work)
DHW operation
Constant setback mode
Constant day mode
Automatic mode
Standby mode
Fault message (flashing)
C26_03_01_0206

5
2.2 Equipment menu (Control level 2)
Select the required menu point with the rotary selector.
ROOMTEMP HC1
ROOMTEMP HC2
DHW TEMP
time/date
HOLIDAY/PARTY
TEMPERATURES
HEATING CURVES
HEATING PROG
DHW PROG
FIRST START-UP
With the menu item ROOM TEMP 1 you can select the SET ROOM TEMP for day and setback
mode for heating circuit 1.
The actual room temperature can also be scanned, as soon as the FE 7 remote control has
been connected and allocated to heating circuit 1.
With the menu item ROOM TEMP 2 you can select the SET ROOM TEMP for day and setback
mode for heating circuit 2. ROOM TEMP 2 will only be displayed, if the mixer ow sensor for
heating circuit 2 has been connected.
The actual room temperature can also be scanned, as soon as the FE 7 remote control has
been connected and allocated to heating circuit 2.
You can allocate a set day or night temperature to the DHW cylinder temperature using the
menu item DHW TEMP
You can adjust the time and summer time with the TIME/DATE menu item.
At the factory, summer time is set up to begin on the 25 March and to end on the 25 October.
The HOLIDAY PROG menu item puts the heat pump system into setback mode. Frost protec-
tion is activated for the DHW cylinder.
The PARTY PROG menu item allows you to extend the day mode by a few hours.
The HTG CURVE menu item enables you to adjust one heating curve each for heating circuit 1
and 2.The room temperature will only remain constant, irrespective of the outside temperature, if
the correct heating curve has been selected for the relevant type of building. Selecting the correct
heating curve is therefore vitally important.
The HTG PROG menu item enables you to adjust associated heating programs for heating cir-
cuit 1 and 2 respectively.
The DHW PROG menu item enables you to adjust the times for the day and setback temperatu-
res for DHW HTG.
The menu item INFO TEMP enables you to scan the heat pump or heat pump system sensor
temperatures, comparing set with actual values, the heating curve gap, etc.
As part of the commissioning process, determine not only the adjustments at control level 2 but
also the system-specific parameters.These parameters are adjusted at control level 3, access to
which is protected by code.
Check all parameters in sequence.
Enter all selected values into the column (system value) provided on the commissioning report.

6
Room temperature HC 1
With the menu item ROOM TEMP 1 you can
select the set room temperature for day and
setback mode for heating circuit 1. Changing
these parameters results in a parallel offset of
the heating curve.
The actual room temperature can also be
scanned, as soon as the FE 7 remote control
has been connected and allocated to heating
circuit 1.
DHW temperature
You can allocate a set day or night tempera-
ture to the DHW cylinder temperature using
the DHW TEMP menu item.
Open the control ap!
Open the control ap!
Room temperature HC 2
With the menu item ROOM TEMP 2 you
can select the set room temperature for day
and setback mode for heating circuit 2.You
can change the room temperature, if you feel
rooms are either too hot or too cold. ROOM
TEMP 2 will only be displayed, if the mixer
flow sensor is connected.
The actual room temperature can also be
scanned, as soon as the FE 7 remote control
has been connected and allocated to heating
circuit 2.
Open the control ap!
Adjustments at control level 2 for users and contractors
Roomtemp HC1
SET Roomt 1
SET Roomt DAY
SET Roomt NIGHT
SET Roomt NIGHT
Roomtemp 1
Back
Roomtemp HC1
Roomtemp HC2
Set Roomt DAY
Set Roomt DAY
Set Roomt night
SET Roomt night
Actual Roomtmp
Back
roomtemp hc2
DHW TEMP
SET DHW DAY
SET DHW DAY

7
Time and date
You can adjust the time and summer time
with the TIME/DATE menu item.
At the factory, summer time is set to begin on
the 25 March and to end on the 25 October.
Open the control ap!
Set the time or
summer time
Holiday and party program
In holiday mode, the heat pump system ope-
rates in setback mode, and frost protection
for DHW heating is active. Holiday mode is
displayed with the flap closed. For the start of
the holidays, the year, month and day are ente-
red; for its end also enter the year, month and
day.The start and end time is always 24:00 h
of the date entered. After the holiday period
has expired, the heat pump system operates
again in accordance with the previous heating
and DHW program.
In party mode you can extend day mode for
central heating by a few hours.This is display-
ed with the flap closed.
For example, if the heating program normally
switches to setback mode at 22:00 h, and you
set the party mode to two hours, then set-
back mode would only begin at 24:00 h.
Open the control ap!
SET DHW NIGHT
SET DHW NIGHT
ACTUAL DHWTMP
back
DHW TEMP
TIME / DATE
SET CLOCK
TIME
TIME
YEAR
MONTH
DAY
SET CLOCK
back
time / date
Holiday/Party
Holiday
Year Start
MONTH Start
DAY Start

8
Info temperatures
The menu item INFO TEMP enables you to
scan the heat pump or heat pump system
sensor temperatures, comparing set with
actual values, the heating curve gap, etc. In all,
the following 22 parameters can be scanned:
– Outside temperature
– Actual room temperature
(HC 1/HC 2)
(will only be displayed if the FE 7 remote
control is connected)
– Set room temperature (HC 1/HC 2)
(will only be displayed if the FE 7 remote
control is connected)
– Actual DHW temperature
– Set DHW temperature
– Actual HP return temperature (HC 1)
– Set HP return temperature (HC 1)
The fixed temp. will be displayed for
fixed temperature control
– Actual mixer ow temperature (HC 2)
– Actual mixer ow temperature (HC 2)
– Fixed HP return temperature
– Set buffer temperature
Highest set value of heating circuits H1,
H2, H3 if MSM is installed. Fixed tempe-
rature will be displayed for fixed tempe-
rature control)
– Actual HP ow temperature
– Set DHW ow temperature
– Set heating ow temperature
– Actual source ow temperature
– Set source ow temperature
– CHG PT HTG
– CHG PT DHW
– Heating limit temperature
– Limit temperature DHW
– System frost protection temperature
– Frost protection temperature IWS 1 to
IWS 6
Open the control ap!
Heating curves
The HTG CURVE menu item enables you
to adjust one heating curve each for heating
circuit 1 and 2. Selecting the correct heating
curve is therefore vitally important.
Note:
Your contractor will have set up a building
and system-specic optimum heating curve
for every heating circuit. It relates to the HP
return temperature for heating circuit 1 and
to the mixer ow temperature for heating
circuit 2.
When adjusting the heating curve on WPM,
the calculated set return or flow temperature,
which is subject to the outside temperature
and the set room temperature, will be shown
at the top of the display.
Bezogen auf +20 °C
Außentemperatur
Bezogen auf 0 °C
Außentemperatur
Bezogen auf -20 °C
Außentemperatur
Tag-Betrieb Heizkreis 1
Bezogen auf +20 °C
Außentemperatur
Bezogen auf 0 °C
Außentemperatur
Bezogen auf -20 °C
Außentemperatur
Absenk-Betrieb
Based on 20°C
Outdoor temp
Based on 0°C
Outdoor temp
Based on -20
Outdoor temp
Set-Back operation
Day operation Heating Circuit 1
Based on +20°C
Outdoor temp
Based on 0°C
Outdoor temp
Based on -20
Outdoor temp
26_03_01_0076
As soon as a temperature has been pre-se-
lected via the fixed temperature parameter at
control level 3, heating circuit 1 will be hidden,
and the display will show FIXED TEMP with
the relevant temperature.
Year STOP
Month STOP
Day STOP
Holiday
Back
Holiday / Party
Note:
Actual or set temperatures will not be dis-
played, if the corresponding sensor is not
connected.
Temperatures
Outdoor
Back
Temperatures

9
26_03_01_0077
1,5
2
1,2
1
0,6
0,4
0,2
2,53
20 18 16 14 12 10
8 6 4 2 0
-2 -4 -6 -8
-10 -12 -14 -16 -18 -20
100
80
60
40
20
Außentemperatur [°C]
Heizkreis 2 WP-Vorlauftemperatur [°C] Heizkreis 1 WP-Rücklauftemperatur [°C]
0,8
20 18 16 14 12 10
8 6 4 2 0
-2 -4 -6 -8
-10 -12 -14 -16 -18 -20
Außentemperatur [°C]
70
60
50
40
30
20
Tag-Betrieb
Absenk-Betrieb
Rücklauf- / Vorlauftemperatur [°C]
20 18 16 14 12 10
8 6 4 2 0
-2 -4 -6 -8
-10 -12 -14 -16 -18 -20
Außentemperatur [°C]
Rücklauf- / Vorlauftemperatur [°C]
70
60
50
40
30
20
geänderte Heizkurve
26_03_01_0078
26_03_01_0079
Heating curve diagram
One heating curve respectively can be adjusted for heating circuit 1 and heating circuit 2.
At the factory, heating curve 0.6 is set up for heating circuit 1 and heating curve 0.2 for
heating circuit 2.These heating curves relate to a set room temperature of 20 °C.
Adjustment of programmed changeover between day/setback mode
The figure shows a standard heating curve with a slope of 0.8, relative to a set room tempe-
rature for day mode of 20 °C.The lower curve represents the setback curve. For this, the set
room temperature for setback mode of 15 °C is used, in other words the heating curve is
subjected to a parallel offset.
Open the control ap.
Matching a heating curve to actual conditions
Example: During spring and autumn, the return or flow temperature of a heating system is
too low at an outside temperature between 5 and 15 °C, but is OK at outside temperatures
of ≤ 0 °C. This problem can be remedied with parallel offset and a simultaneous reduction of
the heating curve. Prior to this adjustment, heating curve 1.0 was adjusted, relative to a Set
room temperature of 20 °C.The dotted line indicates the modified heating curve at 0.83 and
a modified set room temperature at 23.2 °C.
Heating Curves
Back
Heating Curves
Heating Circuit 1, HP Return temperature [°C] Heating Circuit 2, HP Flow temperature [°C]
HP Return temp. / Flow temp. [°C]
Day operation
Set-back operation
Outdoor temperature [°C]
HP Return temp. / Flow temp. [°C]
modified Heating curve
Outdoor temperature [°C]
Outdoor temperature [°C]

10
Heating programs
The HTG PROG menu item enables you to
adjust associated heating programs for hea-
ting circuit 1 and 2 respectively.
You can adjust your heating system as follows:
– for each individual day of the week
(Monday, ..., Sunday)
– Monday to Friday (Mo - Fr)
– Saturday and Sunday (Sa - Su)
– the whole week (Mo - Su)
You can adjust three switching time pairs
(I, II, III) for each of these options.
This determines, when and how often the
heat pump system should heat in day mode.
At all other times, the heat pump operates in
setback mode. You will already have selected
the corresponding set values for day and set-
back mode under menu item
ROOM TEMP 1/2.
Example: For heating circuit 1, your heating
system should operate daily from Monday to
Friday at two different times, i.e. from 05:30
h until 08:30 h as well as from 14:00 h until
22:00 h. For the weekend, your heating sys-
tem should provide heat from 08:30 h until
21:00 h.
Open the control ap.
Heating circuits
1 or 2
Heating PROG
Heat Circuit 1
Mon to FRI
HEAT START 21C
Heat STOP 21C
Heat START 21C
Heat STOP 21C
Heat START 21C
SAT to SUN
Heat START 21C
Heat STOP 21C
Heat START 21C
Heat START 21C
SAT to SUN
BACK
BACK
HEATING PROG