STIEBEL ELTRON MSM Operation Instruction

STIEBEL ELTRON
Brand
STIEBEL ELTRON
Model
MSM
Category
Heat pumps
Type
Operation Instruction
MSMW, MSMS
Mixer and swimming pool module
for central heating heat pumps
Operating and installation instructions
2
Important information
Installation, initial commissioning and
maintenance of this unit shall only be carried
out by a qualified installer in accordance with
these instructions.
Incorrectly executed work creates
dangers for life and limb.
Installation instructions
Operating instructions 3
1 Equipment overview 3
1.1 Equipment description 3
1.2 Operating and installation instructions 3
1.3 Maintenance and care 3
1.4 Operation 4
2 Settings 5
2.1 Operating modes (control level 1) 5
2.2 Equipment menu (control level 2) 6
2.3 Remote control FE 7 11
Installation instructions 12
1 Standard delivery 12
2 Wall mounting 12
3 Control panel installation 12
4 Electrical connection 12
4.1 Power cables 12
4.2 Fuses/MCBs 12
4.3 Power supply 12
4.4 Temperature sensors 12
4.5 Positioning the temperature sensors 13
4.6 Circulation pumps and mixers 13
4.7 BUS connection 13
4.8
Remote control FE 7 connection array
13
4.9 MSMW connection array 14
4.10 MSMS connection array 15
5 Commissioning 16
5.1 Supplement to the BUS initialisation 16
5.2 System configuration 16
5.3 Reset options MSM 16
5.4 Commissioning overview 17
5.5 Commissioning in detail 17
5.6 Commissioning report 20
5.7 Specification 20
5.8 Standard settings 21
5.9 Individual settings 21
6 Troubleshooting 21
Guarantee 22
Environment and recycling 22
Risk of injury
Where children or persons with
limited physical, sensory or mental capa-
bilities are to be allowed to control this
appliance, ensure that this will only happen
under supervision or after appropriate in-
structions by a person responsible for their
safety.
Children should be supervised to ensure
that they do not play with the appliance.
3
1.1 Equipment description
The mixer and swimming pool module MSM
is available in two versions, namely as control
panel model MSMS and as wall mounted
model MSMW with casing. A BUS cable is
routed on site between the MSM and the WPM
II, that enables the communication between
both devices.
The MSM is used in heat pump systems with
a second mixer circuit (H3), and/or in systems
with more than two heat pumps and/or for
one swimming pool regulating.
The MSM can also be used as an independent
mixer controller. In that case there is no
communication with the WPM II. The MSM is
operated just like the WPM II.
Heating the swimming pool water with the
MSM can only work in conjunction with the
WPM II.
There are two possible system configurations:
– operation with a swimming pool water
sensor or
– operation with a separate power supply for
the swimming pool operation.
In both cases there is a higher starting
condition: The first starting condition is met
as soon as the swimming pool water heating
program is enabled
.
The second starting condition that must
be met depends on whether the system is
operated with a swimming pool water sensor
Operating instructions for users and contractors
1 Equipment overview
or with a separate power supply for swimming
pool operation. The primary and secondary
pump are started as soon as the swimming
pool water heating commences. In addition,
the buffer cylinder is regulated to a fixed
value.
The fault output of the MSM is switched
as soon as the heat pump is permanently
switched OFF. This is indicated on the display
by a flashing warning symbol.
A permanent shutdown occurs if five heat
pump faults occur in a two hour run.
Summary of available functions
z The communication with the WPM II takes
place via a three-wire BUS cable
z Control of a second independent mixer
circuit
z Control of four additional heat pumps with
buffer cylinder primary pumps
z Integral swimming pool water control
z 7-day program for selecting the heating
and setback times
z Stand-alone mixer control with an
independent outside temperature sensor
(this requires no BUS connection to the
WPM II)
1.2 Operating and installation
instructions
In accordance with the respective system, the
installation and operating instructions for the
system‘s components must also be observed.
Keep these operating and installation
instructions safely and pass them on to any
new user, should the equipment change
hands, and let your contractor check their
content in conjunction with any maintenance
and repair work.
1.3 Maintenance and care
Maintenance work, e.g. checking the
electrical safety, must only be carried out by
qualified personnel. Protect the equipment
from the ingress of dust and dirt during
building work.
A damp cloth is all you need to care for the
plastic parts. Do not use abrasive or corrosive
cleaning agents!
B
C
F
D
E
A
A Display
B Rotary selector
C Rotary selector Reset / Auto
D Programming key
E Programming control indicator
F Programming flap (open)
System status display
1 Mixer opens
2 Mixer closes
3 Circulation pump, heating circuit 3
"mixer circuit"
4 Circulation pump, swimming pool
5 Buffer cylinder primary pump 3
6 Buffer cylinder primary pump 4
7 Buffer cylinder primary pump 5
8 Buffer cylinder primary pump 6
9 System parameter
5
6
7
8
9
1
2
3
4
C26_03_01_0762
Roomtemp. 3
Day / clock
Holiday / Partyprog.
Info Temp.
Heating curve
Heating prog.
Sw. pool temp.
Sw. pool prog.
First start-up
C26_03_01_0762
ROOMTEMP HC3
4
1.4 Operation
The operation is split over three control
levels. Control levels 1 and 2 are accessible to
users and contractors alike. Control level 3 is
reserved for contractors.
Control level 1 (control flap closed)
At this level parameters such as standby
mode, programmed operation, constant day
or setback mode, etc. can be adjusted (see
section 2.1).
Control level 2 (control flap open)
At this level parameters such as room
temperature, DHW temperature, heating
programs, etc. can 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
Settings
All settings follow the same pattern:
Opening the control flap toggles the manager
into programming mode.
An indicator symbol
is shown at the
bottom of the display at system parameter
Room t HC 1.
Turning the rotary selector allows you to
move the indicator to the system parameter
you want to change.
Press
to change the value of the system
parameter. Whenever the red indicator
above
illuminates, you can modify the
current value by turning the rotary selector
. Press again; the indicator then
extinguishes and the new set value has
been saved. You can modify further values
for this parameter by continued pressing
of
, if the red indicator has not been
extinguished above
. The programming
step can only be terminated when the red
indicator has extinguished.
Terminating programming
You can terminate the process after entering
and saving the required parameter changes
by closing the control flap.
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 flap with indicator above
on returns the manager to its original
position. The modified value will then not
be saved.
During commissioning, a system
check will be implemented, e.g.
all sensors that are currently connected
are displayed upon request. Sensors not
connected before the system went 'live'
are not registered by the manager and are
therefore not displayed. The indicator symbol
skips that parameter.
Example: The system parameter's heating
curve and heating program are skipped if
the mixer sensor was not connected during
commissioning. Values for these parameters,
therefore, cannot be programmed.
5
Display (including all elements)
Swimming pool operation
Constant setback mode
Constant day mode
Automatic mode
Standby mode
Fault message (flashing)
14-digit plain text display
Heating times for central heating and swimming pool water (black)
Switching pairs for central heating and swimming pool water operation
Day mode for heating circuit 3
Setback mode for heating circuit 3
C26_03_01_0763
2 Settings
2.1 Operating modes (control level
1)
The operating modes are changed by turning
the rotary selector
with the control flap
closed.
Standby mode
The control unit is switched OFF, but is
still 'live'; frost protection is enabled, and
the swimming pool function is switched
OFF. The operating mode was defaulted
by the WPM II if the indicator flashes.
Application: Holidays.
Automatic mode
Heating according to time switch
program:
Changeover between day temperature
and setback temperature.
The swimming pool function is enabled.
The remote control is effective.
Application: Central heating and
swimming pool water heating.
Constant day mode
The mixer circuit is constantly held at day
temperature.
The swimming pool function is enabled.
Application: Low energy houses without
setback mode.
Constant setback mode
The mixer circuit is constantly held at
setback temperature.
The swimming pool function is enabled.
Application: Weekends away.
Swimming pool operation
The swimming pool function is enabled.
Frost protection is activated for heating
operation.
Application: The heating season has
ended; only the swimming pool water
should be heated.
Fault message (flashing)
Indicates faults in the heat pump system.
Notify your local contractor.
6
With the ROOM T parameter you can select the set room temperature for the day and setback
mode of heating circuit 3.
The actual room temperature can also be scanned, as soon as the FE 7 remote control has been
connected and allocated to the heating circuit.
With the Swim pool T parameter you can select the set temperature for swimming pool water
heating.
With the time/date parameter you can set the clock and define the summer time.
At the factory, summer time is set to begin on the 25 March and to end on the 25 October.
The Holiday prog parameter puts the heat pump system into setback mode.
The Party prog parameter allows you to extend the day mode by a few hours.
The Htg curve parameter enables one heating curve to be set up for heating circuit 3. 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 parameter enables the associated heating programs to be set up for heating circuit
3.
In the Swim pool prog parameter you can select the times for the swimming pool operation.
The Temperatures parameter enables you to scan the sensor temperatures for the heat pumps or
the heat pump systems, comparing set with actual values.
During START UP you need to not only determine the settings of 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 in the commissioning report.
2.2 Equipment menu (control level 2)
Select the required parameter with the rotary selector.
ROOMTEMP HC3
time/date
HOLIDAY/PARTY
TEMPERATURES
HEATING CURVES
HEATING PROG
FIRST START UP
Swim pool t
Swim pool prog
7
Room temperature HC 3
With the Room t parameter you can select
the set room temperature for the day and
setback mode of heating circuit 3. Changing
this parameter 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 3.
Open the control flap.
Settings at control level 2 for users and contractors
Time and date
With the time/date parameter you can set the
clock and define the summer time.
At the factory, summer time is set to begin on
the 25 March and to end on the 25 October.
Open the control flap.
Setting the time
or
Summer time
ROOMTEMP HC3
SET ROOM T-DAY
SET ROOM T-DAY
SET ROOM T-ngt
SET ROOM T-ngt
ACTUAL ROOM T
ROOMTEMP HC3
BACK
TIME/DATE
day
SET CLOCK
TIME/DATE
TIME
TIME
SET CLOCK
YEAR
MONTH
BACK
8
Holiday and party program
In Holiday mode, the heat pump system
operates in setback mode; holiday mode is
displayed with the flap closed. For the start
of the holidays, the year, month and day are
entered; also enter the year, month and day
for the end of the holidays. 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 central heating and
swimming pool water program.
In Party mode, you can extend the day mode
for central heating by a few hours. This is
displayed with the flap closed.
If, for example, the heating program normally
switches to setback mode at 22:00 h, and you
set the party mode to two hours, then setback
mode would only begin at 24:00 h.
Open the control flap.
Temperatures
The Temperatures parameter enables
you to scan the sensor temperatures of
the swimming pool system comparing set
with actual temperatures. The following
temperatures can be scanned.
– Outside temperature
– Actual room temperature (HC3)
(will only be displayed if the remote control
FE 7 is connected)
– Actual room temperature (H3)
– Actual mixer temperature (HC3 flow)
– Set mixer temperature (HC3 flow)
– Actual pool temperature
– Set pool temperature
– Actual return temperature
– Fixed pool temperature
Note
Actual or set temperatures will not be
displayed, if the corresponding sensor is not
connected. See system designs on page 22.
Open the control flap.
BACK
BACK
HOL-PARTY
HOL-PARTY
HOLIDAY
Year BEGIN
MONTH BEGIN
day BEGIN
HOLIDAY
Year end
MONTH end
day end
TEMPERATURES
TEMPERATURES
OUTSIDE
9
Heating curves
The Htg curve parameter enables one
heating curve to be set up for heating circuit
3. Selecting the correct heating curve is vitally
important.
Note: Your contractor will have set up a
building and system-specific optimum heating
curve for heating circuit 3. For heating circuit 3
it relates to the mixer flow temperature.
When adjusting the heating curve on the
MSM, the calculated set flow temperature, that
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
26_03_01_0076
Heating curve diagram
At the factory, heating curve 0.2 is selected for heating circuit 3.
The heating curve relates to a set room temperature of 20 °C.
C26_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
Adjustment of programmed changeover between day and setback mode
The figure shows a standard heating curve with a slope of 0.8, relative to a set room
temperature 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
subject to a parallel offset.
Matching a heating curve to actual conditions
Example:
During spring and autumn, the 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 d 0 °C.
This problem can be remedied with a parallel offset and a simultaneous reduction of the
heating curve.
Prior to this adjustment, heating curve 1.0 was selected 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.
C26_03_01_0078
C26_03_01_0079
Heating circuit 3 Flow temperature [°C]
Based on 20 °C
outside temp.
Based on 0 °C
outside temp.
Based on -20 °C
outside temp.
Based on 20 °C
outside temp.
Based on 0 °C
outside temp.
Based on -20 °C
outside temp.
Day mode
Heating circuit 1
Set back mode
Outside temperature °C
Outside temperature °C
Day mode
Setback mode
Flow temperature [°C]
Flow temperature [°C]
Outside temperature °C
Modified heating curve
back
HTG CURVE
HTG CURVE
10
Heating programs
The Htg prog parameter enables the
associated heating programs to be set up for
heating circuit 3.
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 select three switching time pairs
(I, II, III) for each of the above 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 setback
mode under parameter Room t HC3.
Example:
For the heating circuit, 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.
At the weekend, your heating system should
provide heat from 08:30 h until 21:00 h.
Open the control flap.
BACK
MON-FRI
HTG PROG
HEAT CIRCUIT 3
HTG PROG
back
SAT-SUN
SAT-SUN
HEATING STOP
HEATING STOP
HEATING STart
HEATING STart
HEATING STart
HEATING STOP
HEATING STart
HEATING STart
HEATING STart
11
Swimming pool program
Under the Swim pool prog parameter you
can select the times for the swimming pool
water heating.
You have the option of adjusting the
swimming pool water heating for:
– Every individual day of the week
(Monday, ..., Sunday)
– Monday to Friday (Mo - Fr)
– Saturday and Sunday (Sa - Su)
– The whole week (Mo - Su)
You can select three switching time pairs
(I, II, III) for each of the above options.
Exception: You will need two switching time
pairs, if you want to heat the swimming pool
water from 22:00 h until 06:00 h the following
day.
Open the control flap.
The operating mode and the set room
temperature can be altered by ± 5 °C via the
remote control FE 7.
It offers the following controls:
z one rotary selector for modifying the set
room temperature
z one rotary selector with the following
positions
Programmed mode
Constant setback mode
Constant day mode
The remote control is only active in the MSM
programmed mode.
2.3 Remote control FE 7
Swimming pool water temp.
With Swim pool t parameter you can select
the set temperature for swimming pool
water heating. Swimming pool water heating
commences as soon as the actual temperature
is < set temperature minus the starting
hysteresis and the swimming pool program
has been enabled
. This display will
only be shown if the swimming pool water
temperature sensor has been connected.
Open the control flap.
Example:
You want to heat the swimming pool water
daily at two different times, i.e. from 22:00 h
until 06:00 h the following day, and then again
from 08:00 h until 09:00 h.
The day begins at 00:00 h; therefore begin
programming for this example at 00:00 h.
The first switching times pair runs from 00:00
until 06:00 h. The second switching times
pair runs from 08:00 until 09:00 h. The third
switching times pair runs from 22:00 h until
24:00 h.
POOL START
BACK
SET POOL
ACT. POOL
SWIM POOL PROG
SWIM POOL PROG
SWIM POOL t
MON-SUN
POOL START
POOL START
POOL end
POOL end
POOL end
MON-SUN
BACK
12
MSMW Part no. 074519
– Wall mounted casing with fully wired MSM
– Cable harness
– 1 PTC contact sensor with heat transfer
paste
– 18 strain relief fittings
MSMS Part no. 074518
– MSM
– 1 PTC contact sensor with heat transfer
paste
– Power supply plug
2 Wall mounting (MSMW)
The MSM must only be installed in a dry room.
The permissible ambient temperature lies
between 0 and 50 °C.
Determine the position of the holes to
be drilled with the aid of the installation
template.
For the top casing fixings, turn a round head
screw Ø 4 mm so far into the rawl plug that
it is just possible to hook the casing over the
screw head. Then tighten the casing with two
additional Ø 4 mm screws in the lower casing
part.
During the installation, observe the
required clearance of a minimum of 1
m towards the heat pump.
The instructions in this chapter are exclusively
aimed at contractors. They presume
a completed appropriate training and
knowledge of the function of the WPM II heat
pump manager, the mixer swimming pool
module MSM and the connected heat pumps.
1 Standard delivery
The cartons contain the respective components
listed in the following order:
Control panel cut-out
3 Control panel installation (MSMS)
Observe all relevant requirements when
installing the manager inside a control panel.
In particular observe the segregation of the
mains and low voltage areas.
4 Electrical connection
Connect all electrical cables/leads in
accordance with the relevant connection
diagram. The MSM must be able to be isolated
on all poles from the mains supply with a
contact separation of at least 3 mm. For this,
use contactors, mains isolators, fuses/MCBs,
etc.
Isolate all poles of the heating system supply
prior to carrying out any installation work.
4.1 Power cables
The cable entries in the wall mounted casing
are designed for fixed and flexible cables with
an external diameter of 6 to 12 mm.
BUS cable: J-Y (St) 2 x 2 x 0.8
Secure all cables/leads on the wall
immediately below the wall mounting casing
with the correct strain relief.
In addition, fit the red wedges supplied to
secure the cables/leads inside the casing.
Observe correct separation when
installing the BUS cable, the mains
supply cable and the sensor leads.
4.2 Fuses/MCBs
No fuses/MCBs for the connected consumers
are provided in the wall mounted casing or in
the MSM.
A fuse/MCB for connected consumers can
be wired into the circuit via connection L* or
pumps L (see also the heat pump connection
diagram).
Temperature in ° C Resistance in :
– 20 1367
– 10 1495
0 1630
10 1772
20 1922
25 2000
30 2080
40 2245
50 2417
60 2597
70 2785
80 2980
90 3182
100 3392
The installation of the temperature sensors
has a decisive influence on the function of the
heating system. For that reason, observe the
following points:
– Good connection of the sensors
(fit contact sensors only to straight pipe
sections)
– Cover the whole contact area with heat
transfer paste
– Provide good insulation for contact sensors
– Apply strain relief to the sensor leads
The correct connection to the manager
can be checked under system parameter
Temperatures by calling up the respective
temperature value.
4.4 Temperature sensors
The sensors supplied with the MSM have
identical temperature/resistance values (see
the following table):
Installation instructions for contractors
4.3 Power supply
When connecting the power supply, ensure
the correct connection of the earth conductor
(only applicable to the MSMW).
The mains power and LV are physically
separated inside the wall mounted casing.
During the installation, ensure that this
separation is maintained!
Route the sensor leads and the BUS cables in
physically separate areas from the 230/400 V
cables. Cables/leads may be routed in parallel.
13
Outside temperature sensor AFS 2 Part no.:
165339
Install the outside
temperature sensor on a
north or north-eastern wall
behind a heated room.
Minimum distances:
2.5 m from the ground
1 m to the side of doors and
windows.
The outside temperature
sensor should be freely exposed to the
elements, but should not be installed above
windows, doors or air ducts and should not be
subject to direct sunlight.
Installation:
Remove the cover.
Secure the sensor with the screw supplied.
Insert and connect the lead.
Replace the cover and let it clearly click into
place.
Immersion sensor TF 6A
Part no.: 165342
Insert the immersion sensor
into the appropriate sensor
well of the respective
cylinder. Where no buffer
cylinder is installed, fit the
immersion sensor into the
heat pump return.
Diameter: 6 mm
Length: 1 m
Contact sensor AVF 6
Part no.:
165341
Install the mixer sensor in the mixer flow.
Installation
information:Thoroughly
clean the pipe.
Apply heat transfer
paste
A.
Secure the sensor
with a tie.
4.8 Remote control FE 7 connection array
4.5 Positioning the temperature sensors
4.5.1 MSM in systems with more than two
heat pumps
In systems with more than two heat pumps,
use the MSM to control the additional heat
pumps and the associated buffer cylinder
primary pumps. No sensor can be connected
to the MSM if no additional second mixer
circuit is installed. The outside temperature
sensor connected to the WPM II applies to the
whole heat pump system.
4.5.2 MSM for systems with a second mixer
circuit
The mixer flow sensor must be connected to
the MSM, if, in addition to the mixer control
of the WPM II, a second independent mixer
circuit is installed.
This enables a separate heating curve to be
allocated to that mixer circuit (heating
curve 3) together with the associated
temperatures.
The set mixer flow temperature is transmitted
via the BUS to the WPM II. It accepts the
highest set value for all heating circuits as set
value for the buffer cylinder temperature.
During commissioning, the pointer of
the MSM jumps to the system parameter
Room T HC3. All adjustments can be made at
the MSM. (see MSMW operating instructions).
Time and day do not need to be set as they
are downloaded from the WPM II.
4.5.3 MSM as stand-alone mixer controller
If the MSM is used as stand-alone mixer
controller, i.e. there is no BUS connection
to the WPM II, then connect both sensors
for the outside temperature and the mixer
flow. By connecting the mixer flow sensor, a
separate heating curve (heating curve 3) with
associated temperatures (room temp. 3) can
be allocated to the second mixer circuit. The
buffer cylinder primary pumps will not be
controlled. Set the time and day.
4.5.4 MSM as swimming pool water controller
Using the MSM as swimming pool water
controller requires a BUS connection to the
WPM II.
Either operation with a swimming pool water
temperature sensor or with the 230 V input at
the MSM is implemented.
An immersion sensor part no. 165342 or
a contact sensor part no.: 165341 can be used
as swimming pool water temperature sensor.
4.6 Circulation pumps and mixers
For the connection observe the maximum
breaking capacity (2 A/250 V AC). The total
current for all consumers must not exceed 10
A.
4.7 BUS connection
Only connect the BUS cable during
commissioning (see section. 5.1).
X2. 9 X3 X2. 10 at MSMW
X11. 1 X11. 2 X11. 3 at MSMS
14
4.9 Connection array MSMW
The connection array of the MSMW is split into a low voltage and mains power section in accordance with current safety requirements/standards.
All cables/leads are routed through the cable trunking and secured with the strain relief fittings (red wedges) at the wall mounting casing. Make all
connections as indicated by the markings on the MSMW:
X2 LV area
1 Sensor, outside temperature
2 Sensor, swimming pool water
7 Sensor, mixer flow temperature
9 Terminal 1 of the remote control FE 7
10 Terminal 3 of the remote control FE 7
11-13 BUS High, Low and Ground
14 "+" (not connected)
X3 Earth sensor
X4 N
X5 PE
X1 Mains voltage area
1 N
2 L
3 Input swimming pool L (230 V)
4 Pumps L
5-8 Buffer cylinder primary pumps
9 Heating circuit pump
10-11 Fault zero volt
12 Swimming pool water pump, primary
13 Swimming pool water pump, secondary
14 Mixer OPEN
15 Mixer CLOSE
1
234567 89
10 11 12 13 14 15 16
1
234567 89
10 11 12 13 14 15 16
Mains N
Mains L
S-controller
Pumps L
Buffer 3
Buffer 4
Buffer 5
Buffer 6
Heat. 3
Fault
Primary
Secondary
Mixer +
Mixer –
Outside
Swimm
Mixer
1
3
BUS H
BUS L
BUS -
BUS +
X5
PE
N
X4
X1
X2
X3
FE 7
15
4.10 Connection array MSMS
The mixer module is connected in line with the connection array shown. For this, push the plugs supplied for full allocation onto the MSM as follows:
LV area
X11 1 Terminal 1 of the remote control FE 7
2 Earth
3 Terminal 3 of the remote control FE 7
4 Earth
6 Swimming pool water sensor
8 Mixer flow sensor
9 Earth
10 Outside temperature sensor
X15 1 BUS High
2 BUS Low
3 Ground "-"
4 "+" (not connected)
Mains voltage area
X20 1 Swimming pool water pump,
secondary
2 Swimming pool water pump,
primary
3 Input swimming pool
4 L (230 V)
5 N
X21 1 Buffer cylinder primary pump 5
2 Buffer cylinder primary pump 6
X22 1 N
2 L
3 Pumps L*
4 Buffer cylinder primary pump 3
5 Mixer circuit pump
6 Buffer cylinder primary pump 4
7 Mixer opens
8 Mixer closes
9 Fault zero volt
10 Fault zero volt
16
5 Commissioning
5.1 Supplement to the BUS initialisation
(applicable to sections 4.5.1 and 4.5.2)
Observe the following sequence when making
the BUS connections:
– Apply the mains voltage of the individual
heat pumps
– Apply the mains voltage to the WPM II
– Apply the mains voltage to the MSM
– Call up the "System" parameter under
"System parameter commissioning the WPM
II". Every weekday figure (1 to 7) symbolises
a connected IWS or the MSM.
The weekday display must not yet indicate
any figures.
The MSM must be the first device to be
connected to the WPM II via the BUS
cable. After the connection has been
established, no more than 2 min. later the
WPM II display must show 7 in the weekday
display. Communication between both
devices has been established.
– One after the other, connect the BUS cable
to the individual heat pumps (see WPM II
installation instructions).
In case of incorrect initialisation,
reset all IWS and the MSM, in other words
re-initialise them:
For this, proceed as follows:
– Switch OFF the mains voltage to the WPM II
– Switch OFF the mains voltage to the MSM
– Switch OFF the mains voltage to the heat
pumps
– Open the heat pumps
– Undo all BUS connections
– Switch ON the mains voltage to the heat
pumps
– Press the reset button. Hold down until the
3 LEDs illuminate permanently. Release
the reset button again. The IWS is only
now reset again and ready for another
initialisation.
– Reconnect the mains voltage to the WPM II
and MSM
– Reset the WPM II and MSM
– Setting the system-specific parameters in
the commissioning list
The entire heat pump system will be
switched OFF if there is a break in the
central BUS cable between the
WPM II and the heat pump or between the
MSM and the WPM II.
5.2 System configuration
The system is configured by carrying out
the settings in the commissioning list. The
commissioning list (see page 20) contains all
settings for the MSM operation.
Initially check the settings in the
commissioning list If the system operates
incorrectly.
5.3 Reset options MSM
5.3.1 Reset by turning the rotary selector to
Auto after Reset and then back again. All
system-specific programs are maintained.
5.3.2 Reset by turning the rotary selector to
Auto after Reset and then back again whilst
pressing PRG.The display must show EEPR.
(EEPROM hardware reset). The MSM is reset
into its factory-set condition, incl. code
number.
17
5.4 Commissioning overview (control level 3)
No. Parameter
(shown on the display)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
START UP
ENTER CODE
LANGUAGE GERMAN --------- MAGYAR
CONTRAST
DISPLAY SWIM POOLT DAY MIXER TEMP
SUMMER OPRTN OFF / ON BUILDING TYPE OUTSIDE TEMP
FIXED POOL t OFF / °C
POOL hyster °C
MIXER MAX °C
MIXER DYNAMIC
FE ADJUSTMENT
ROOM INFLUENCE
RELAY TEST MIXER OPEN ------ MIXER CLOSED BACK
LCD TEST
SOFTWare msm
BACK
5.5 Commissioning in detail
Not only the adjustments at control level 2 but
also the system-specific parameters must be
determined as part of commissioning the heat
pump system. 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 respective column
(system value) in the commissioning report,
section 5.6 on page 20.
Not all adjustments take immediate
effect. Some adjustments only
become effective in certain situations or
after a delay. The MSM coding is identical to
the WPM II.
1
Code 1 0 0 0
Enter the correct four-digit code to change
parameters at control level 3. The factory-set
code is 1 0 0 0.
After pressing PRG (indicator illuminates), the
first digit can be selected by turning the rotary
selector. Pressing PRG again confirms the
value, then the second digit of the code begins
to flash. Turning the rotary selector enables
the second digit of the code to be entered.
Four lines appear on the display when all four
digits of the code have been entered correctly.
This provides access to control level 3, and
the display shows CODE-OK. The code must be
entered again if the flap has been closed and
is opened again. Checking settings does not
require the code to be entered again.
2
Language
Press PRG and select the required language
with the rotary selector. Then confirm your
selection by pressing PRG again.
3
CONTRAST
4
DISPLAY
Select, what will be displayed when the
programming unit flap is closed. You can
select between swimming pool water
temperature, day and time or mixer
temperature.
18
5
Summer OPRTN
Under parameter SUMMER OPRTN you
can define from what date the heating
system should change over to summer
mode. Summer mode can be switched ON
or OFF. This function offers two adjustable
parameters.
Under the BUILDing TYPE parameter you
can select, whether the current outside
temperature should be compared with the
selected outside temperature (setting 0) or
whether, subject to building type (setting
1, 2 or 3), an adjusted outside temperature
should be determined. In both cases, both
heating circuits (if installed) switch to summer
mode, reverse hysteresis -1 K, if the current or
calculated outside temperature is t than the
set outside temperature.
The display indicates SUMMER OPRTN when
the flap is closed.
With set-value control, summer mode is
disabled for heating circuit 1.
OUTSIDE TEMP parameter:
Available outside temperature 10 °C to 30 °C
Building type parameter:
Setting 0:
No adjustment of the outside temperature.
The average and the building-specific outside
temperature are identical to the current
outside temperature; direct comparison
between the selected and current outside
temperature.
Setting 1:
Mild adjustment of the outside temperature
(averaged over 24 h period), e.g. timber
construction with rapid heat transfer.
Setting 2:
Mean adjustment (averaged over 48 h
period) of the outside temperature, e.g. solid
construction with thermal insulation and
average heat transfer.
Setting 3:
Severe adjustment (averaged over 72 h period)
of the outside temperature; house with slow
heat transfer.
6
Fixed pool T
Fixed value temperature
As soon as a swimming pool water demand
is active, the heat pump, in conjunction with
the buffer primary pump, will be regulated to
the selected fixed value (shown by the WPM II
under Temperatures 11). Both pump outputs
plus the primary and secondary pump, are
switched ON. The heat pump and the buffer
primary pump are switched OFF as soon as
the fixed value has been reached. The primary
and secondary pump keep running until the
start condition for the swimming pool demand
has been satisfied.
7
pool hyster
As soon as a swimming pool water demand
is active, the heat pumps, in conjunction with
the buffer primary pump, will be regulated to
the selected fixed value (shown by the MSM
under Temperatures 11). Both pump outputs
plus the primary and secondary pump, are
switched ON. The heat pump and the buffer
primary pump are switched OFF as soon as
the fixed value has been reached. The primary
and secondary pump keep running until the
start condition for the swimming pool demand
has been satisfied.
8
mixer Max
Maximum mixer flow temperature
Setting range 20 °C to 90 °C.
This setting limits the mixer circuit‘s flow
temperature. For example, if a higher set
flow temperature is calculated from the
mixer circuit data, the max. set mixer flow
temperature will be used to control and
regulate to this value.
9
Mixer dynamic
Mixer runtime
Setting range 60 to 240.
This setting can be used to adapt the mixer
characteristics. The setting 60 to 240 means 6
K to 24 K control deviation.
The system scans every 10 s, and the
minimum ON time for the mixer is 0.5 s. The
mixer does not respond inside the dead zone
of ±1 K from the set value.
Example for setting 100 = 10 K (see diagram
below).
The control deviation (set mixer temperature –
actual mixer temperature) is 5 K.
The mixer opens for 5 s, then pauses for 5 s
and then starts again.
The control deviation
(set mixer temperature – actual mixer
temperature) is 7.5 K. The mixer opens for
7.5 s, then pauses for 2.5 s and then starts
again.
The smaller the control deviation, the shorter
the mixer ON time and the longer its pauses.A
reduction of the MIXER DYNA TM value with
static control deviation increases the ON
duration and reduces pauses.
10
FE adjustment
This parameter enables the calibration of the
actual room temperature.
11
Room influence
for FE 7 remote control
Standard setting 5 adjustable from ---- via 0
to 20 dashes (----) on the display:
With the FE 7 remote control connected,
the room temperature sensor serves only
to capture and display the actual room
temperature. It has no influence on the
control.
With setting "0 to 20" the set room
temperature for heating circuit 3 can be
adjusted at the remote control FE 7 by
± 5 K. This set value adjustment applies to
the respectively current heating time, not to
the setback time.The setting "0 to 20" serves
to control the room temperature-dependent
night setback. This means that the heating
circuit pump is switched OFF at the point
of changeover from the heating into the
setback phase. It remains OFF, until the actual
room temperature falls below the set room
temperature. Afterwards, the system regulates
in weather-compensated mode.
If the room temperature is to be included
in the control, set the room temperature
sensor influence to a value ≥ 2. The room
sensor influence has the same effect as the
outside temperature sensor has on the return
temperature. Only this effect is 2 to 20 times
greater by the set factor.
Einstellung 100 =
Regelabweichung 10 K
± 1 K
Regelabweichung (K)
Einschaltdauer (%)
Regelabweichung 5 K
Example for setting 100 and a current
control deviation of 5 K
5 K of 10 K = 50 % =
ON duration
26_03_01_0097
Setting 100 =
control deviation 10 K
Control deviation 5 K
Control deviation (K)
ON duration (%)
19
Room temperature-dependent return
temperature with weather compensation
With this type of control, a control cascade
is formed from a return temperature control
that is subject to both weather and room
temperature. Consequently the weather-
compensated return temperature control sets
a default return temperature that is corrected
by the overriding room temperature control in
accordance with the following formula:
'-
R
= (-
Rset
-
Ractual
) * S * K
Because a substantial proportion of the
control is already handled by the weather-
compensated control unit, the room
temperature sensor compensation factor K can
be set lower than with pure room temperature
control (K=20). The figure below indicates the
control method with the set factor K=10 (room
influence) and a heating curve S=1.2.
Room temperature control with weather-
compensation
This type of control offers two main benefits:
Incorrectly set heating curves are corrected
by the room temperature sensor influence
K, whilst the smaller factor K provides more
stable control.
However, it is important to note the following
for all control units with room influence:
– The room temperature sensor must capture
the room temperature accurately.
– Open doors and windows severely
influence the control result.
– All radiator valves in the lead room must
be fully open at all times.
– The temperature inside the lead room is
decisive for the entire heating circuit.
Set the room temperature sensor influence to
> 2, if you want the room temperature to be
taken into account.
20
30
40
20
50
60
70
80
90
Vorlauftemperatur [°C]
15 16 1917 18 21 22 23 24 25
Raumtemperatur [°C]
0
10
20
30
40
0
50
60
70
80
90
Vorlauftemperatur [°C]
20
-20
Außentemperatur [°C]
0
10
15
10
5
-5
-10
-15
Heizkurve
S = 1,2
witterungsabhängiger Vorlaufsollwert bei -
A
= -10°C
witterungsabhängiger Vorlaufsollwert bei -
A
= 0°C
witterungsabhängiger Vorlaufsollwert bei -
A
= 10°C
Raumfühlereinfluss bei K = 10 und S = 1,2
und Regelabweichung +/- 2 K
Room influence
26_03_01_0098
12
RELAY TEST
Under this parameter, continued turning of
the rotary selector enables all MSM relays to
be switched individually. This way, the correct
wiring of the pumps and mixer can be checked
following installation.
Order of the switched relay outputs:
01. Buffer cylinder primary pump 3
02. Mixer circuit pump
03. Buffer cylinder primary pump 4
04. Mixer OPEN
05. Mixer CLOSE
06. Fault
07. Swimming pool primary pump
08. Swimming pool secondary pump
09. Buffer cylinder primary pump 5
10. Buffer cylinder primary pump 6
13
LCD test
This function enables the LCD to be checked.
After pressing PRG, all display symbols are
scrolled and displayed in sequence.
14
software MSM
Display of the current software issue.
Weather compensated set flow temperature at
Weather compensated set flow temperature at
Weather compensated set flow temperature at
Flow temperature [°C]
Flow temperature [°C]
set
act
Room temperature [°C]
Outside temperature [°C]
Heating curve
S = 1.2
Room temp. sensor infl. at K = 10 and S = 1.2
and control deviation +/- 2 K
20
5.7 Specification
MSMW MSMS
Supply voltage 230 V ~ ± 10 %, 50 Hz
Power consumption Max. 8 VA
EN 60529 Protection IP 21 Protection IP 20
EN 60730 Safety class I Safety class I I
Function type 1B
Software - class A
Control panel integration to DIN 43700 Cut-out 138 x 92
Clock backup, day > 10 h
Permiss. ambient temp. during operation 0 to 50 °C
Permiss. ambient temp. during storage - 30 to 60 °C
Sensor resistances Test resistance with 2000 :
Communication system RS232 (optical), CAN
Max. relay breaking capacities
Buffer cylinder primary pumps 3 ... 6 2 (1.5) A
Mixer circuit pump 2 (1.5) A
Mixer 2 (1.5) A
Primary/secondary pump, swimming pool 2 (1.5) A
Max. total relay breaking capacity 10 (10) A
No. Parameter Setting range Standard System value
1
ENTER CODE
0000 to 9999 1000
2
LANGUAGE
German
3
CONTRAST
– 10 to + 10 0
4
DISPLAY
Mixer ACTUAL
5
SUMMER OPRTN
ON / OFF ON
6
Fixed pool T
20 °C to 55 °C 50 °C
7
pool hyster
+ 5 K to + 3 K 0.5 K
8
MIXER MAX
20 °C to 90 °C 50 °C
9
MIXer dynamic
30 - 240 100
10
FE adjustment
- 5 K to + 5 K 0
11
Room influence
0 to 20 5
12
RELAY TEST
13
LCD TEST
14
Software version WP
5.6 Commissioning report Don’t forget to reset the system to the last operating mode that was selected.
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STIEBEL ELTRON MSM Operation Instruction

STIEBEL ELTRON
Brand
STIEBEL ELTRON
Model
MSM
Category
Heat pumps
Type
Operation Instruction
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