Weishaupt WEM-RG2 User manual

Installation and operating instruction
Room device WEM-RG2 83307102 2/2017-11

Installation and operating instruction
Room device WEM-RG2
83307102 2/2017-11 La 2-28
1 User instructions.............................................................................................................. 3
1.1  Target group.................................................................................................................. 3
1.2  Symbols.......................................................................................................................... 3
1.3  Guarantee and Liability............................................................................................... 4
2 Safety ..................................................................................................................................... 5
2.1  Designated application............................................................................................... 5
2.2  Safety measures........................................................................................................... 5
2.3  Disposal ......................................................................................................................... 5
3 Product description ........................................................................................................ 6
3.1  Type key ......................................................................................................................... 6
3.2  Technical data............................................................................................................... 6
3.2.1  Electrical data ........................................................................................................6
3.2.2  Ambient conditions...............................................................................................6
3.2.3  Dimensions .............................................................................................................6
4 Installation ........................................................................................................................... 7
5 Operation ............................................................................................................................. 9
5.1  Display and operating unit ......................................................................................... 9
5.2  Display..........................................................................................................................10
5.3  Favourites level ...........................................................................................................12
5.4  User level .....................................................................................................................13
5.4.1  Info......................................................................................................................... 14
5.4.2  Heating circuit..................................................................................................... 16
5.4.3  Domestic hot water  .......................................................................................... 18
5.4.4  Statistic................................................................................................................. 19
5.4.5  Settings ................................................................................................................ 20
5.5  Operating mode .........................................................................................................21
5.6  Room setpoint temperature.....................................................................................22
6 Technical documentation......................................................................................... 23
6.1  Control options...........................................................................................................23
6.1.1  Constant flow temperature .............................................................................. 23
6.1.2  Weather compensated control ....................................................................... 23
6.1.3  Room temperature dependent control.......................................................... 24
6.1.4  Weather compensated/Room control........................................................... 24
7 Notes ................................................................................................................................... 25
8 Key word index .............................................................................................................. 26

Installation and operating instruction
Room device WEM-RG2
1 User instructions
83307102 2/2017-11 La 3-28
1 User instructions
Translation of original
operating instructions
This manual forms part of the equipment and must be kept on site.
Carefully read the manual prior to working on the unit.
It is supplemented by the installation and operating instructions for the condensing
unit.
1.1 Target group
The manual is intended for the operator and qualified personnel. They should be
observed by all personnel working with the unit.
Work on the unit must only be carried out by personnel who have the relevant train-
ing and instruction.
In accordance with EN 60335-1 the following requirements apply
This appliance can be used by children 8 years and above as well as by persons
with limited physical, sensory or mental capacities or lack of experience and know-
ledge, provided they are supervised or have been instructed regarding the safe use
of the appliance and understand the resulting danger. Children must not play with
the appliance. Cleaning and operator maintenance must not be carried out by chil-
dren without supervision.
1.2 Symbols
DANGER
Immediate danger with high risk.
Non observance can lead to serious injury or death.
WARNING
Danger with medium risk.
Non observance can lead to environmental damage,
serious injury or death.
CAUTION
Danger with low risk.
Non observance can cause damage to the equip-
ment and injury to personnel.
Important information
Requires direct action
Result after an action
Itemisation
… Range of values

Installation and operating instruction
Room device WEM-RG2
1 User instructions
83307102 2/2017-11 La 4-28
1.3 Guarantee and Liability
Guarantee and liability claims for personal and equipment damage are excluded, if
they can be attributed to one or more of the following causes:
non approved application,
non-observance of the manual,
operation with faulty safety equipment,
continual operation despite a fault,
improper installation, commissioning, operation and service,
repairs, which have been carried out incorrectly,
the use of non original Weishaupt parts,
force majeure,
the installation of additional components, which have not been tested with the
unit.

Installation and operating instruction
Room device WEM-RG2
2 Safety
83307102 2/2017-11 La 5-28
2 Safety
2.1 Designated application
The room device in conjunction with the Weishaupt Energy ManagementWEM is
suitable for:
the operation of up to 3 heating circuits,
the operation of a DHW circuit.
The unit should only be used in enclosed rooms.
The installation location must comply with local regulations and must be frost-proof.
Improper use could:
endanger the health and safety of the user or third parties,
cause damage to the unit or other material assets.
2.2 Safety measures
Safety relevant fault conditions must be eliminated immediately.
2.3 Disposal
Dispose of all materials and components in a safe and environmentally friendly way
at an authorised location. Observe local regulations.

Installation and operating instruction
Room device WEM-RG2
3 Product description
83307102 2/2017-11 La 6-28
3 Product description
3.1 Type key
WEM-RG2 …
WEM Type: Weishaupt Energy Management
RG2 Type: room device comfort version
… Version
3.2 Technical data
3.2.1 Electrical data
Voltage supply DC 15 … 26 V
Consumption max 0.7 W
Type of protection IP 20
3.2.2 Ambient conditions
Temperature in operation 0... +50°C
Temperature during transport / storage 0... +50°C
relative humidity max 85%, no dew point
3.2.3 Dimensions
160 mm
100 mm

Installation and operating instruction
Room device WEM-RG2
4 Installation
83307102 2/2017-11 La 7-28
4 Installation
Remove room device from wall bracket
Place a suitable screwdriver into the recess1 and disengage the room device
in the direction of the arrow.
Remove room device.
1
Pull off protective foil
Pull off protective foil.

Installation and operating instruction
Room device WEM-RG2
4 Installation
83307102 2/2017-11 La 8-28
Fit wall bracket and connect
DANGER
Risk of electric shock
Working on the device when voltage is applied can lead to electric shock.
Isolate the device from the power supply prior to starting any work.
Safeguard against accidental restart.
The electrical connection must only be carried out by qualified electricians. Ob-
serve local regulations.
If only 2 wires are available on site, the connection can be made using the
adapter set WEM-CAN 2 wire (RG2) (accessory).
Secure wall bracket1 to the wall using the screws supplied.
Feed the wires2 through and connect to wiring diagram.
Hook in the room device at the top of the wall bracket3 and push to engage.
WEM-FA-G
H L – +
H L – +
2
1
3

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 9-28
5 Operation
5.1 Display and operating unit
2
1
1Dial knob turn navigation through parameter structure;
changing values
press briefly: confirm or save values
approx. 3seconds: exit value without saving
approx. 5seconds: return to the start screen
2Light ring Status OFF: display not activated
white: display activated
blue: change value activated
yellow: warning message
rot: fault message

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 10-28
5.2 Display
Start screen
Time program 1 Normal
23.5
Room temperature
16:552016-06-23
Thursday
50 °C
7 °C
°C
0
Heating circuit 1
3 6 9 12 15 18 21 24 4
7
5
2
63
1
1Current heating circuit being accessed
(heating circuit assigned to HC operating access 1 ).
2Information:
Information from menu Info in the user level.
The 2 fields can be assigned as required [ch.5.4.1].
3Current status of the operating mode of the heating circuit shown.
4Level selection:
Favourites level
User level
Operating mode
Room setpoint temperature
The dial knob is used to select the level.
5Current time program of the heating circuit shown.
6Current operating mode of heating circuit shown.
7Current room temperature.
Symbols
Favourites level / Create favourite
User level
Operating mode
Room setpoint temperature
Exit display
Information /Help text

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 11-28
Lockout
The room device detects irregularities in the system and displays them.
Example
16:552016-06-23
Thursday
Burner control 1
Fault 21
No flame formation at burner start
Heating circuit 1 16:552016-06-23
Thursday
Room device 2 1
Warning 1
Humidity in room too high
Heating circuit 1
Note down display and inform your heating engineer or Weishaupt's customer
service.
Service
If the service interval of the condensing unit is exceeded, a message appears in the
display.
16:552016-06-23
Thursday
Burner control 1
Info 1
Service note
Heating circuit 1
Notify your heating contractor or Weishaupt Customer Service.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 12-28
5.3 Favourites level
Frequently used user level parameters can be assigned as favourites.
It is possible to assign a maximum of 6favourites. Factory pre-assigned favourites
can be replaced by parameters from the user level.
Display favourites
Select Favourites level using dial knob and confirm.
Display changes to Favourites level.
Time program 1 Normal
23.5
Room temperature
16:552016-06-23
Thursday
50 °C
7 °C
°C
0 3 6 9 12 15 18 21 24
Heating circuit 1 Favourites
Operating
mode
Room
setpoint
temperature
Party/
Heating pause
Heating-
programs Holiday
DHW
Push
1 1 1
111
Assigning favourites
Select the desired parameter in the user level .
Select and confirm.
Turn the knob to select an existing favourite and replace by confirming.
A new favourite has been assigned.
DHW setpoint temperature
Normal
Setback
50 °C
40 °C
Replace which favourite?
OK = press | ESC = press 3 secs.
Operating
mode
Room
setpoint
temperature
Party/
Heating pause
Heating-
programs Holiday
DHW
Push
1 1 1
111

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 13-28
5.4 User level
Select User level using dial knob and confirm.
Display changes to the User level.
User
Info Heating circuit
Domestic hot
water
Statistic
Time program 1 Normal
23.5
Room temperature
16:552016-06-23
Thursday
50 °C
7 °C
°C
0 3 6 9 12 15 18 21 24
Heating circuit 1
Settings
Depending on the execution, hydraulics and control variations, certain information
and parameters are hidden.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 14-28
5.4.1 Info
Info
In menu Info, the information is read only.
Information Description
External temperat-
ure
Current temperature at the external sensor.
DHW
temperature
Current temperature at the DHW sensor.
DHW
Actual outlet tem-
perature
Current temperature at the DHW outlet sensor (versionC).
DHW
Flow rate
Current DHW flow rate at the water flow sensor of the condensing unit (version
C).
Return flow tem-
perature
Circulation
Current temperature at the return flow sensor of the circulation line.
Room temperature Current temperature at the room device.
Room humidity Current room humidity at the room device.
Flow temperature Current temperature at the flow sensor of the corresponding heating circuit.
Collector output Current heat output of the solar system.
Collector
temperature
Current temperature at the collector sensor.
Storage tank tem-
perature
bottom
Current temperature at the bottom of the storage tank.
Rating Current heating capacity of the condensing unit.
Boiler temperature Current temperature at the flow sensor of the condensing unit.
System pressure Current system pressure.
Buffer storage
temperature top
Current temperature at the buffer sensor at the top.
Buffer storage
temperature bottom
Current temperature at the buffer sensor at the bottom.
De-couple temper-
ature
Current temperature at de-couple sensor.
Plate heat
exchanger temper-
ature
Current temperature at the plate heat exchanger.
Device information Current device information (Software version, etc.).
Assignment RG2 Current assignment of room device.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 15-28
The following information can be displayed on the start screen [ch.5.2].
Select information required and confirm.
Select and confirm Info on start screen?.
Select information, which is to be replaced and confirm.
Information on start screen is replaced.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 16-28
5.4.2 Heating circuit
Heating circuit
If operating access was assigned to multiple heating circuits, a separate menu ap-
pears for each heating circuit.
Parameters Setting
Operating
mode
determines the type of operation of the heating circuit.
If functions (heating, DHW) are deactivated in menu System operating mode , the setting has
no effect.
Standby:
Frost protection on
Heating off
DHW off
Time program 1 … 3:
Frost protection on
Heating on
Temperature level according to selected time program. Time programs can be set in parameter
Heating program .
DHW on
(Factory setting: Time program 1)
Summer:
Frost protection on
Heating off
DHW on
Comfort, Normal, Setback:
Frost protection on
Heating on
Temperature level according to the operating mode set, independent of the time program.
DHW on
Heating-
programs
The heating program is used to stipulate the times of the day when comfort, normal or setback heating
is used.
Time program 1 … 3
The preset time programs can be customised.
Changing a time program:
Select time program using the knob and confirm.
Time bars are displayed.
Select week day(s) using the knob and confirm.
Time program can be edited.
The temperature of the level can be set using parameter Room setpoint temperature.
Set time program required in parameter Operating mode .
Party/
Heating pause
The temperature level of the heating program can be temporarily changed (maximum23:45hours).
After this time the current heating program will be reactivated.
Select Function and set Party/Heating pause .
Set level required in Room setpoint temperature .
Enter Start and End.
If the parameter is set to Off, the current heating program is activated.
(1 Factory setting and setting range depending on heating circuit set, see installation and operating manual for con-
densing unit.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 17-28
Parameters Setting
Room
setpoint
temperature
Room setpoint temperature for the temperature level selected.
Comfort (factory setting: 22.0 °C)
Normal (factory setting: 21.0 °C)
Setback (factory setting: 16.0 °C)
The levels can be assigned to specific times of the day using parameter Heating program .
Flow setpoint-
temperature
Flow setpoint temperature for the temperature level selected.
Comfort(1
Normal(1
Setback(1
The levels can be assigned to specific times of the day using parameter Heating program .
Only if control variation Constant flow temperature has been set on the system device
[ch.6.1.1].
Special
level
Defines the flow temperature set at special level. The heating program is not effective.
When inputH1 is closed, the system heats up to the special flow level set.
Only if input H1 of the system device has been configured to Heating circuit1: Special
level .
Holiday
Interrupt heating program for a certain period of time. The level can be set to Setback or Frost
during this time.
Set Function to On.
Set Room setpoint temperature to Setback or Frost.
Enter Start date and End date.
If the parameter is set to Off, the current heating program is activated.
Heating curve
Flow setpoint temperature dependent on external temperature [ch.6.1.2].
The display refers to the room setpoint temperature Normal.
The heating curve gradient can be changed and / or it can be moved in parallel.
Gradient (1
Parallel movement (1
Adapting the heating curve [ch.6.1.2]:
cold external temperature: change gradient
mild external temperature: change parallel movement
Only if control variation Weather compensated control or Weather compensated /
room control has been set on the system device.
Su/Wi
change-over
On (factory setting):
If the damped external temperature (tendentious course) exceeds the value set (factory set-
ting:19°C), the operating mode changes to Summer.
Off:
The operating mode set remains activated, independent of the external temperature.
(1 Factory setting and setting range depending on heating circuit set, see installation and operating manual for con-
densing unit.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 18-28
5.4.3 Domestic hot water
Domestic hot
water
Parameters Setting
DHW setpoint
temperature
DHW temperature for normal and setback operation.
Normal (factory setting: 50 °C)
Setback (factory setting: 40 °C)
Normal and setback operation can be assigned to specific times of the day using the DHW program.
With versionC only the DHW setpoint temperature for normal operation is displayed.
DHW
Push
DHW Push is used to cover increased hot water demand, e.g. during setback operation.
The DHW tank is heated once to the DHW setpoint temperature set for normal operation.
DHW
program
The DHW program is used to stipulate the times of the day when the DHW tanks is heated to normal
temperature or setback temperature.
For version C, the plate heat exchanger is brought to and maintained at the DHW setpoint tem-
perature during normal operation (comfort mode). As a result, hot water is available immediately.
Change a time program:
Select week day(s) using the knob and confirm.
Time program can be edited.
Circulation
program
The circulation program is used to stipulate the time of day when the circulation pump is switched on.
The time program can be adapted individually.
Change a time program:
Select week day(s) using the knob and confirm.
Time program can be edited.
DHW
operating
mode
Deactivate DHW preparation.
On (factory setting):
DHW preparation activated.
Off:
DHW preparation deactivated.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 19-28
5.4.4 Statistic
Statistic
In the Statistic menu, daily, monthly and annual values relating to the energy
generated are displayed.
Information Description
Energy WTC
Total
Total amount of heat generated by the condensing unit.
Energy
Solar
Solar system yield.
Recooling
Solar
Yield for re-cooling via collector circuit.

Installation and operating instruction
Room device WEM-RG2
5 Operation
83307102 2/2017-11 La 20-28
5.4.5 Settings
Settings
Parameters Setting
Language
Set language.
Brightness
Adjust the brightness of the display.
Automatic (factory setting):
The brightness of the display is regulated depending on the brightness of the room.
Manually:
The brightness can be adjusted from 10 … 100 %.
Night mode
Off (factory setting):
If the display is in standby, the current room temperature, date and time are displayed.
On:
The display is completely switched off in standby mode during the time set.
Humidity in
the room
Monitors the humidity in the room.
Min. value
Max. value
If the humidity in the room exceeds the limits, a warning message appears.
Note:
The optimum humidity in living areas is 40 ... 60%.
Light ring
Configuring the light ring on the room device.
Off:
Light ring is always off.
Operation (factory setting):
light ring is only illuminated, when the display is activated.
On:
light ring is illuminated, when the display is activated or a fault message is present.
Correction
room sensor
Correction of the current room temperature.
If no optimal placement of the room sensor is possible or a measurement error is to be compensated,
the measured room temperature can be corrected.