Viessmann VITODENS, VITOPEND, Vitotronic 100, HC1B Operating Instructions Manual

Page 1

Operating instructions

for the system user
Heating system with Vitotronic 100 control unit, type HC1B For constant temperature mode
VITODENS VITOPEND
VIESMANN
5592 683 GB 8/2013
Page 2

Safety instructions

For your safety
Please follow these safety instructions closely to prevent accidents and material losses.
Safety instructions explained
Danger
This symbol warns against the risk of injury.
Please note
!
This symbol warns against the risk of material losses and environmental pollution.
Note
Details identified by the word "Note" contain additional information.
Target group
These operating instructions are designed for heating system users. This appliance can also be operated by children of 8 years and older, as well as by individuals with reduced physical, sensory or mental faculties or those lacking in experience and knowledge, provided such individu­als are being supervised or have been instructed in the safe use of this appliance as well as in any risks aris­ing from it.
Please note
!
Supervise children in the proximity of the appli­ance.
Never permit children to play with the appli­ance.
Cleaning and maintenance must not be car­ried out by unsupervised children.
If you smell gas
Danger
Escaping gas can lead to explosions which may result in serious injury.
Do not smoke. Prevent naked flames and sparks. Do not switch lights or electrical appli­ances on or off.
Close the gas shut-off valve.
Open windows and doors.
Evacuate any people from the danger zone.
Notify your gas or electricity supplier and your local heating contractor from outside the build­ing.
Shut off the electricity supply to the building from a safe place (outside the building).
If you smell flue gas
Danger
Flue gas can lead to life threatening poisoning.
Shut down the heating system.
Ventilate the installation site.
Close all doors in the living space.
In case of fire
Danger
If there is a fire, there is a risk of burns and explosion.
Shut down the heating system.
Close shut-off valves in the fuel supply lines.
Use a tested fire extinguisher, class ABC.
What to do if the heating system develops faults
Danger
Incorrectly executed work on the heating system can lead to life threatening accidents.
Work on gas installations must only be carried out by a registered gas fitter.
Work on electrical equipment must only be carried out by a qualified electrician.
Danger
Fault messages indicate faults in the heating system. If faults are not rectified, they can have life threatening consequences. Do not acknowledge fault messages several times in quick succession. Inform your heating contractor so the cause can be analysed and the fault rectified.
Danger
The appliance generates heat. Hot surfaces can
Installation room conditions
cause burns.
Never open the appliance.
Never touch the hot surfaces of uninsulated pipes, fittings or flue pipes.
Danger
Sealed vents result in a lack of combustion air. This leads to incomplete combustion and the formation of life threatening carbon monoxide. Never cover or close existing vents. Do not make any subsequent modifications to the building characteristics that could affect safe operation (e.g. cable/pipework routing, cladding or partitions).
5592 683 GB
2
Page 3
For your safety (cont.)
Danger
Easily flammable liquids and materials (e.g. naphtha, solvents, cleaning agents, paints or paper) can cause deflagration and fire. Never store or use such materials in the installa­tion room or in direct proximity to the heating system.
Please note
!
Incorrect ambient conditions can lead to heating system damage and can put safe operation at risk.
Ensure ambient temperatures are above 0 °C and below 35 °C.
Prevent air contamination by halogenated hydrocarbons (e.g. as contained in paints, sol­vents or cleaning fluids) and excessive dust (e.g. through grinding/polishing work).
Avoid continuously high humidity levels (e.g. through continuous drying of washing).
Safety instructions
Extractors
Operating appliances that extract air to the outside (cooker hoods, extractors, air conditioning units, etc.) can create negative pressure. If the boiler is operated at the same time, this can lead to reverse flow of the flue gas.
Danger
The simultaneous operation of the boiler and appliances that extract air to the outside can result in life threatening poisoning due to reverse flow of the flue gas. Take suitable steps to ensure an adequate sup­ply of combustion air. If necessary, contact your heating contractor.
Auxiliary components, spare and wearing parts
Please note
!
Components not tested with the heating system may damage it or affect its functions. Only have installation or replacement work car­ried out by qualified contractors.
5592 683 GB
3
Page 4

Index

Index
1. Introductory information Intended use .......................................................................................... 5
Commissioning ...................................................................................... 5
Your system is preset at the factory ....................................................... 5
Terminology ........................................................................................... 5
Tips on saving energy ............................................................................ 6
2. About the controls Controls ................................................................................................. 7
How to use the controls ......................................................................... 7
Symbols ................................................................................................. 7
3. Start-up/shutdown Starting the heating system ................................................................... 9
Shutting down the heating system ......................................................... 9
With frost protection monitoring .......................................................... 9
Without frost protection monitoring (shutdown) .................................. 10
4. Central heating Required settings for central heating ..................................................... 11
Setting the heating flow temperature ..................................................... 11
Setting the operating program (central heating) .................................... 11
Stopping the central heating .................................................................. 11
5. DHW heating Required settings (DHW heating) .......................................................... 12
Setting the DHW temperature ................................................................ 12
Setting the operating program (DHW heating) ...................................... 12
Stopping DHW heating .......................................................................... 12
Comfort function (if available) ................................................................ 13
6. Further adjustments Setting the temperature unit (°C/°F) ...................................................... 14
Restoring factory settings ...................................................................... 14
7. Calling up Calling up information and resetting values ........................................... 15
Calling up a service message ................................................................ 16
Calling up fault messages ...................................................................... 16
8. Multi boiler systems Special considerations for multi boiler systems ..................................... 18
9. Emissions test mode Activating emissions test mode ............................................................. 19
Activating emissions test mode .......................................................... 19
Stopping emissions test mode ............................................................ 19
10. What to do if... Rooms are too cold ................................................................................ 20
Rooms are too hot ................................................................................. 20
There is no hot water ............................................................................. 20
The DHW is too hot ............................................................................... 21
"ã" flashes on the display ..................................................................... 21
"E" flashes on the display ..................................................................... 21
"ë" flashes on the display ..................................................................... 21
"- - EP - -" flashes on the display ........................................................... 21
11. Repair work .................................................................................................................. 22
12. Keyword index .................................................................................................................. 24
4
5592 683 GB
Page 5

Intended use

Introductory information

The appliance is only intended to be installed and operated in sealed unvented heating systems that comply with EN 12828, with due attention paid to the associated installation, service and operating instruc­tions. It is only designed for the heating of water that is of potable water quality.
Intended usage presupposes that a fixed installation in conjunction with permissible, system-specific compo­nents has been carried out.
Commercial or industrial usage for a purpose other than heating the building or DHW does not comply with regulations.

Commissioning

The commissioning and matching of the control unit to local conditions and building characteristics, as well as instructing the user in the operation of the system, must be carried out by your heating contractor.
Any usage beyond this must be approved by the man­ufacturer for the individual case.
Incorrect usage or operation of the appliance (e.g. the appliance being opened by the system user) is prohibi­ted and results in an exclusion of liability. Incorrect usage also occurs if the components in the heating system are modified from their intended function (e.g. if the flue gas and ventilation air paths are sealed).
As the user of new combustion equipment, you may be obliged to notify your local flue gas inspector of the installation [check local regulations]. Your local flue gas inspector will also inform you [where appropriate] about work he may be required to carry out on your combustion equipment (e.g. regular checks, cleaning).

Your system is preset at the factory

The control unit is preset at the factory to " " for central heating and DHW heating. Your heating system is therefore ready for operation:
Central heating
The rooms are heated in accordance with the set­tings on your control unit and room temperature con­trol unit.
Your heating contractor can make further settings for you during commissioning. You can change any settings individually at any time to suit your requirements (see chapter "Central heat­ing").

Terminology

To provide you with a better understanding of the func­tions of your control unit, the appendix contains the chapter "Terminology" (see page 23).
DHW heating
The DHW is heated up to 50 °C.
Your heating contractor can make further settings for you during commissioning. You can change any settings individually at any time to suit your requirements (see chapter "DHW heat­ing").
Frost protection
Your boiler and DHW cylinder are protected against frost.
Power failure
All data is saved if there is a power failure.
5592 683 GB
5
Page 6
Introductory information

Tips on saving energy

Use the adjustment options on the control unit and the room temperature control unit:
Do not overheat your rooms; you can save up to 6 % on your heating costs for every degree you reduce your room temperature. Set your room temperature no higher than 20 °C (see page 11).
Do not set your DHW temperature too high (see page 12).
Select the operating program that meets your current requirements:
In the summer, when you don't want to heat any rooms but do need DHW, select operating program " " (see page 12).
If you do not want to heat any rooms and require no hot water for a prolonged period of time, select operating program " " (see page 9).
Further recommendations:
Correct ventilation/airing. Fully open windows for a short time and close the thermostatic valves while airing.
Close roller shutters (if installed) at dusk.
Set thermostatic valves correctly.
Never cover radiators or thermostatic valves.
Controlled DHW consumption: A shower generally uses less energy than a full bath.
5592 683 GB
6
Page 7
4 8
°C
s A
4 8
°C

Controls

About the controls

You can change the settings for your heating system centrally at the programming unit. If you have a room temperature control unit installed in your rooms, you can also change the settings on the room temperature control unit.
Room temperature control unit operating instruc­tions
Fig. 1
Takes you one step back in the menu Cursor keys Scroll through the menu or adjust values
OK Confirms your selection or setting
Note
The programming unit can be placed in a wall mount­ing base. This is available as an accessory. Ask your heating contractor for more information.
No function Enables you to call up the menu for settings and scanning

How to use the controls

Standard display
Fig. 2

Symbols

These symbols are not always displayed, but appear subject to the system version and the operating condi­tion. Flashing displays indicate that modifications can be made.
Menu
Central heating DHW heating Information Emissions test mode Additional settings
5592 683 GB
Press . This takes you to the menu for settings and scanning.
Operating program
Frost protection monitoring (standby mode) DHW heating Central heating and DHW heating
COMF Comfort mode for DHW heating ECO Without comfort mode for DHW heating
Messages
Service message
ý The service interval has expired
Fault message Fault message for burner
7
Page 8
About the controls
Symbols (cont.)
Displays
Temperature Frost protection monitoring Central heating Heating circuit pump running Cylinder loading pump running In conjunction with a solar thermal system: Solar circuit pump is running Burner running Standard factory setting
5592 683 GB
8
Page 9
0
1
2
3
4
bar
C D
E
BA
4 8
°C
s A

Starting the heating system

Fig. 3

Start-up/shutdown

Fault indicator (red)
A
ON indicator (green)
B
Reset button
C
1. Check the heating system pressure at the pressure gauge. The system pressure is too low if the indicator points to the area below 1.0 bar. In this case, top up with water or notify your local heating contractor.
2. For open flue operation: Check that the ventilation apertures of the installa­tion room are open and unrestricted.
Note
With open flue operation, the combustion air is drawn from the installation room.
3. Open the gas shut-off valve.
Note
Ask your heating contractor to explain the position­ing and handling of these components.
ON/OFF switch
D
Pressure gauge (pressure display)
E
4. Switch ON the power supply, e.g. at a separate MCB/fuse or a mains isolator.
5.
Turn ON/OFF switch " " on. After a short while, the standard display appears and the green ON indicator illuminates. Your heat­ing system and room temperature control unit are now ready for operation.

Shutting down the heating system

With frost protection monitoring

Select operating program " " for frost protection moni­toring (standby mode).
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
3. OK to confirm; " " flashes.
4. until " " flashes.
5592 683 GB
5. OK to confirm; frost protection is activated.
No central heating.
No DHW heating.
Frost protection for the boiler and the DHW cylinder is active.
Note
The circulation pumps are briefly started every 24 hours to prevent them from seizing up.
Ending operating program " "
Select another operating program.
9
Page 10
Start-up/shutdown
Shutting down the heating system (cont.)
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
3. OK to confirm; " " flashes.

Without frost protection monitoring (shutdown)

1.
Turn ON/OFF switch " " off.
2. Close the gas shut-off valve.
Note
Ask your heating contractor to explain the position­ing and handling of these components.
3. Isolate the heating system from its main power sup­ply, e.g. at the separate MCB/fuse or at a mains isolator.
4. If outside temperatures of below 3 °C are expected, please take appropriate measures to protect the heating system from frost. If necessary, contact your heating contractor.
4. until " " flashes: The rooms are heated and DHW is provided. or until " " flashes: DHW is heated but central heating is not active.
5. OK to confirm; the selected operating program is activated.
10
5592 683 GB
Page 11

Required settings for central heating

Central heating

If you want central heating, check the following points:
Have you set the required room temperature?
Room temperature control unit operating instructions
Have you set the heating flow temperature at a suffi­ciently high level? For setting, see the next chapter.

Setting the heating flow temperature

Set the heating flow temperature sufficiently high so the required room temperature can be achieved. Factory setting: 74 °C
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
Have you selected the correct operating program? For setting see page 11 and
Room temperature control unit operating instructions
Have you set the required time program?
Room temperature control unit operating instructions
3. for boiler water temperature; " " flashes.
4. OK to confirm; the selected temperature value
flashes.
5. / for the required boiler water temperature.
6. OK to confirm; the new temperature value is
saved.

Setting the operating program (central heating)

Factory setting: " " for central heating and DHW heating (winter mode).
Press the following keys:
1. for settings; " " flashes.

Stopping the central heating

You do not want to heat any rooms but you want to heat the DHW.
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
3. OK to confirm; " " flashes.
4. until " " flashes.
5. OK to confirm; the central heating is deactivated
and DHW is heated (summer mode).
2. OK to confirm; " " flashes.
3. OK to confirm.
4. / until " " flashes.
5. OK to confirm; the rooms and DHW are heated.
You do not want to heat any rooms or DHW.
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
3. OK to confirm; " " flashes.
4. until " " flashes.
5. OK to confirm; the central heating and DHW heat-
ing are deactivated, frost protection monitoring is activated (standby mode).
5592 683 GB
11
Page 12

DHW heating

Required settings (DHW heating)

If you want DHW heating, check the following points:
Have you set the required DHW temperature? For setting, see the next chapter.

Setting the DHW temperature

Factory setting: 50 °C
Press the following keys:
1. for settings; " " flashes.
2. for " ".

Setting the operating program (DHW heating)

Factory setting: " " for central heating and DHW heating (winter mode).
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
Have you selected the correct operating program? For setting, see page 12.
3. OK to confirm; temperature value flashes.
4. / for required DHW temperature.
5. OK to confirm; the new temperature value is
saved.
4. / until " " flashes for DHW heating (summer mode, no central heating). or until " " flashes for central heating and DHW heating (winter mode).
5. OK to confirm; the selected operating program is activated.
3. OK to confirm; " " flashes.

Stopping DHW heating

You do not want DHW, but do want to heat the rooms.
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
3. OK to confirm; " " flashes.
4. until " " flashes.
5. OK to confirm; the rooms and DHW are heated
(winter mode).
6. for settings; " " flashes.
7. for " ".
8. OK to confirm; temperature value flashes.
9. to 10 °C.
10. OK to confirm; the new temperature value is
saved.
You do not want to have DHW or heat your rooms.
Press the following keys:
1. for settings; " " flashes.
2. OK to confirm; " " flashes.
3. OK to confirm; " " flashes.
4. until " " flashes.
12
5592 683 GB
Page 13
Stopping DHW heating (cont.)
5. OK to confirm; DHW heating and central heating
are stopped, frost protection monitoring is acti­vated (standby mode).

Comfort function (if available)

With the comfort function you can preheat the water volume in the plate heat exchanger to the selected DHW temperature. This makes DHW available imme­diately.
Press the following keys:
1. for settings; " " flashes.
2. for " ".
3. OK to confirm, "COMF ECO" flashes.
DHW heating
4. OK to confirm; "ECO" flashes.
5. for "COMF".
6. OK to confirm; the comfort function is activated.
Ending the comfort function
Press the following keys:
1. for settings; " " flashes.
2. for " ".
3. OK to confirm, "COMF ECO" flashes.
4. OK to confirm; "COMF" flashes.
5. for "ECO".
6. OK to confirm; the comfort function is terminated.
5592 683 GB
13
Page 14

Further adjustments

Setting the temperature unit (°C/°F)

Factory setting: °C
Press the following keys:
1. for settings; " " flashes.
2.
for " ".

Restoring factory settings

You can simultaneously reset all changed values to the factory settings.
Press the following keys:
1. for settings; " " flashes.
2.
3. OK to confirm; " " flashes.
4. OK to confirm; the factory setting is reinstated.
for " ".
3. OK to confirm; " " flashes.
4. / for required temperature unit ("°C" or "°F").
5. OK to confirm; the new temperature unit is saved.
Factory settings:
Operating program: " "
Boiler water temperature: 74 °C
DHW temperature: 50 °C
14
5592 683 GB
Page 15
¸
3 6 5
°C

Calling up information and resetting values

Calling up

Subject to connected components and settings made, you can call up current temperatures and operating conditions.
Press the following keys:
1. for settings; " " flashes.
2. for " ".
3. OK to confirm.
4. / for the required information.
5. OK to confirm; if you want to reset the value to "0" (see following table), " " flashes.
The information appears in the following sequence: Display Meaning Notes
0 10 LON subscriber no.
1 15 °C Outside temperature Displayed only if an outside temperature sensor
2 95 °C Flue gas temperature
3 65 °C Boiler water temperature
4 45 °C Temperature of heating water buf-
fer cylinder or low loss header
5 50 °C DHW temperature Displayed only if a DHW cylinder is connected.
51 50 °C DHW temperature, top Displayed only if two cylinder temperature sen-
52 50 °C DHW temperature, bottom
5c 95 °C Collector temperature Displayed only if a Viessmann solar control
5 45 °C DHW temperature with solar oper-
ation
53 50 °C
54 50 °C
6 70 °C Collector temperature Displayed only if a solar thermal system is con-
2 6 3 5 7 2 h Burner hours run Number of hours run (only approximate values).
1
5
3
6
0 3 0 5 2 9 Burner starts The number of burner starts can be reset to "0"
0 0 1 4 1 7 h Solar circuit pump hours run Displayed only if a Viessmann solar control
0 0 1 4 2 5 Pump starts, solar circuit pump Displayed only if a Viessmann solar control
Temperature sensor
Temperature sensor
/
6. OK to confirm; the value is reset.
Example:
On the display, you can see the number "3" which shows the boiler water temperature. The current boiler water temperature is 65 °C.
Fig. 4
Note
The scan mode terminates automatically after 30 minutes or if you press .
is connected.
Displayed only if a heating water buffer cylinder or low loss header is connected.
sors are connected.
module is installed.
Displayed only if a solar thermal system is con­nected.
Displayed only if the Viessmann solar control module is available and a third temperature sen­sor has been connected.
Displayed only if the Viessmann solar control module is available and a fourth temperature sensor has been connected.
nected
The hours run can be reset to "0" with "D".
with "D".
module is installed. The hours run can be reset to "0" with "D".
module is installed. The pump starts can be reset to "0" with "D".
5592 683 GB
15
Page 16
0
ë
2 5 0
h
1ë2
Calling up
Calling up information and resetting values (cont.)
Display Meaning Notes
0 0 0 5 0 6 h Hours run, output 22 Displayed only if the Viessmann solar control
7
8
9
4 Reception quality Vitocom 100,
1 2
0 0 0 5 0 6 Pump starts, output 22 Displayed only if the Viessmann solar control
0 0 2 8 5 0 Solar yield in kWh Displayed only if a Viessmann solar control
type GSM
module is available and a second circulation pump has been connected. The hours run can be reset to "0" with "D".
module is available and a second circulation pump has been connected. The pump starts can be reset to "0" with "D".
module is installed. The solar energy can be reset to "0" with "D".
Displayed only if Vitocom 100, type GSM is con­nected.
0 - no reception
5 - very good reception

Calling up a service message

Your heating contractor can set a service interval. For example, burner service after 2500 hours run or serv­ice after 12 months. If your heating system is due for a service, the symbol " " flashes on the display and the expired service interval is shown.
Example:
Service display with the service interval of 2500 hours run by the burner:
Fig. 5
Service display with the service interval of 12 months:
Notify your local heating contractor and acknowledge the service message by pressing OK.
Note
If the service can only be carried out at a later point in time, the service message will reappear after 7 days.
Calling up an acknowledged service message
Press OK for approx. 4 seconds.
Fig. 6

Calling up fault messages

If any faults have occurred in your heating system, the symbol " " flashes on the display and the fault code is shown. In addition, the red fault indicator flashes (see page 9).
16
5592 683 GB
Page 17
1 5 0
ã
Calling up fault messages (cont.)
Example:
Fault code shown: "50"
Fig. 7
Danger
If faults are not rectified, they can have life threatening consequences. Do not acknowledge fault messages several times in quick succession. If a fault occurs repeatedly, notify your heating contractor so the cause can be analysed and the fault rectified.
1. Notify your heating contractor of the fault code. This
enables the heating contractor to be better pre­pared for the service call and may save additional travelling costs.
Calling up
2. Acknowledge the fault message with OK. Symbol
" " no longer flashes.
Note
If you have connected signalling equipment to indicate fault messages (e.g. a buzzer), this is deactivated when the fault message is acknowl­edged.
If the fault cannot be fixed until later, the fault message will reappear the following day.
Calling up an acknowledged fault message
Press OK for approx. 4 seconds.
Note
If there are several fault messages, you can call these up in sequence by pressing / .
5592 683 GB
17
Page 18
3
4 8
°C
3
0

Multi boiler systems

Special considerations for multi boiler systems

In systems with several boilers (multi boiler systems), each boiler is equipped with its own control unit. These control units are regulated by a higher control unit. Make the required settings (e.g. room temperature) at the higher control unit.
Operating instructions of the higher control unit
Boiler number
In multi boiler systems, each boiler control unit indi­cates the boiler number on the standard display.
Example:
Boiler number "3"
Fig. 8
Boiler number "3" has been blocked by the higher con­trol unit.
Fig. 9
Operating program
" " for frost protection monitoring (standby mode): By selecting operating program " ", you individually shut down the relevant boiler. Boiler frost protection monitoring is active.
" " for DHW heating (summer mode): You cannot set operating program " ".
Room temperature/boiler water temperature
You cannot select either room temperature or boiler water temperature.
18
5592 683 GB
Page 19

Activating emissions test mode

Activating emissions test mode

Emissions test mode

Emissions test mode should only be activated by your flue gas inspector during the annual inspection.
Press the following keys:
1. for settings; " " flashes.
2.
3. OK to confirm; "ON" flashes.
for " ".
"FL" appears on boilers with flow rate captur-
ing. Ensure adequate flow rate (e.g. open radi­ator valves).

Stopping emissions test mode

Press the following keys:
1. for settings; " " flashes.
2.
3. OK to confirm; "OFF" flashes.
for " ".
4. OK to start the burner for measurement; "ON" will
be displayed constantly. If "FL" and " rate capturing), the flow rate is too low. Raise the flow rate by drawing off heat. When the flow rate is adequate, "ON" will flash.
5. OK to start the burner for measurement. "ON" is constantly displayed.
After 4 s the standard display is shown.
" flash (for boilers with flow
p
4. OK to confirm.
Note
Emissions test mode ends automatically after 30 minutes.
5592 683 GB
19
Page 20

What to do if...

Rooms are too cold

Cause Remedy
The heating system is switched off.
Control unit or room temperature control unit incorrectly adjusted.
Only when operating with DHW heating: DHW priority is enabled (" " is displayed).
No fuel. With LPG:
Symbol " " is shown on the display. Press "R" (see page 9).
Symbol " " is shown on the display. Notify your heating contractor of the fault code shown.
Turn ON/OFF switch " " on (see page 9).
Switch ON the mains isolator, if installed (outside the boiler room).
Reset the MCB in the power distribution board (main domestic MCB).
Check settings and correct if required:
" " must be set (see page 11)
Room temperature or boiler water temperature (see page 11)
Time program
Room temperature control unit operating in­structions
Wait until the DHW cylinder has been heated up (" " symbol disappears). In the case of operation with an instantaneous water heater, stop DHW draw-off.
Check the fuel reserves and re-order if required. With natural gas: Open the gas shut-off valve. If necessary, check with your gas supply utility.
Acknowledge the fault message with OK (see page 16). Notify your heating contractor of the fault code if the fault recurs.
Acknowledge the fault message with OK (see page 16).

Rooms are too hot

Cause Remedy
Control unit or room temperature control unit incorrectly adjusted.
Check settings and correct if required:
Room temperature or boiler water temperature (see page 11)
Time program
Room temperature control unit operating in­structions
Symbol " " is displayed. Notify your heating contractor of the fault code.
Acknowledge the fault message with OK (see page 16).

There is no hot water

Cause Remedy
The heating system is off.
Control unit incorrectly adjusted. Check settings and correct if required:
20
Turn ON/OFF switch " " on (see page 9).
Switch ON the mains isolator, if installed (outside the boiler room).
Reset the MCB in the power distribution board (main domestic MCB).
DHW heating must be enabled (see page 12).
DHW temperature (see page 12).
5592 683 GB
Page 21
What to do if...
There is no hot water (cont.)
Cause Remedy
No fuel. With LPG:
Check the fuel reserves and re-order if required. With natural gas: Open the gas shut-off valve. If necessary, check with your gas supply utility.
Symbol " " is displayed. Press "R" (see page 9).
Acknowledge the fault message with OK (see page 16). Notify your heating contractor of the fault code if the fault recurs.
Symbol " " is displayed. Notify your heating contractor of the fault code.
Acknowledge the fault message with OK (see page 16).

The DHW is too hot

Cause Remedy
The control unit is incorrectly adjusted. Check and correct the DHW temperature if required
(see page 12).

"ã" flashes on the display

Cause Remedy
Heating system fault Notify your heating contractor of the fault code.
Acknowledge the fault message with OK (see page 16).

"E" flashes on the display

Cause Remedy
Heating system fault Press "R" (see page 9).
Acknowledge the fault message with OK (see page 16). Notify your heating contractor of the fault code if the fault recurs.

"ë" flashes on the display

Cause Remedy
The time for a service, as specified by your heating contractor, has arrived.
Notify your heating contractor and acknowledge the service message with OK (see page 16).

"- - EP - -" flashes on the display

Cause Remedy
The operating program set at the control unit was switched by an external device.
5592 683 GB
If required, you can switch operating programs.
21
Page 22

Repair work

Repair work
Cleaning
All equipment can be cleaned with a commercially available domestic cleaning agent (non-scouring).
Inspection and maintenance
The inspection and maintenance of a heating system is prescribed by the Energy Saving Ordinance [EnEV ­Germany] and the DIN 4755, DVGW-TRGI 2008 and DIN 1988-8 standards. Regular maintenance ensures trouble-free, energy effi­cient, environmentally responsible and safe heating. Your heating system must be serviced by an author­ised contractor at least every 2 years. For this, we strongly advise you to arrange an inspection and main­tenance contract with your local heating contractor.
Boiler
Increasing boiler contamination raises the flue gas temperature and thereby increases energy losses. For that reason, all boilers should be cleaned annually.
DHW cylinder (if installed)
You can clean the front of the programming unit with a microfibre cloth.
Potable water filter (if installed)
To maintain high hygienic standards, proceed as fol­lows:
Replace filter element on non-back flushing filters every six months (visual inspection every two months).
On back flushing filters, back flush every two months.
Standards DIN 1988-8 and EN 806 specify that main­tenance and cleaning should be carried out no later than 2 years after commissioning and as required thereafter. Only a qualified heating contractor should clean the inside of a DHW cylinder and the DHW connections. If any water treatment equipment (e.g. a sluice or injection system) is installed in the cold water supply of the DHW cylinder, ensure this is refilled in good time. In this connection, observe the manufacturer's instruc­tions. In addition for Vitocell 100: We recommend that the correct function of the sacrifi­cial anode is checked annually by your heating con­tractor. The function of the sacrificial anode can be checked without interrupting the system operation. The heating contractor will check the earth current with an anode tester.
Safety valve (DHW cylinder)
The safety valve function should be checked every six months by venting, either by the system user or the local heating contractor (see the valve manufacturer's instructions). The valve seat may become contamina­ted.
22
5592 683 GB
Page 23
Terminology
Constant temperature operation
In constant temperature operation, the heating water is constantly heated to the selected boiler water tempera­ture.
Operating program
The operating program determines whether you heat your rooms and DHW, or only heat DHW, or whether you shut down your heating system and enable frost protection monitoring.
You can select the following operating programs:
" "
The rooms are heated and DHW is provided (winter mode).
" "
DHW is provided but there is no central heating (summer mode).
" "
Frost protection for the boiler and DHW cylinder is active, no central heating, no DHW heating (standby mode).
Note
An operating program for central heating without DHW heating is not available. If rooms are to be heated, hot water is generally also required (winter mode). If you still only want central heating, select operating program " " and set the DHW temperature to 10
°C (see page 12). This means that you will not heat
DHW unnecessarily but the DHW cylinder is protected against frost.
Heating circuit
Balanced flue operation
The combustion air is drawn from outside the building.
Safety valve
A safety device that must be installed by your heating contractor in the cold water pipe. The safety valve opens automatically to prevent excess pressure in the DHW cylinder.
Set temperature
Default temperature that should be reached, e.g. set DHW temperature.
Summer mode
Operating program " ". During the warmer months of the year, i.e. if the rooms do not have to be heated, you can deactivate heating mode. The boiler remains operational for DHW heat­ing.
Cylinder loading pump
Circulation pump for heating the DHW in the DHW cyl­inder.
Drinking water filter
A device that removes solids from the water. The drinking water filter is installed in the cold water pipe upstream of the DHW cylinder or the instantaneous water heater.
A heating circuit is a sealed unvented circuit between the boiler and radiators, in which the heating water cir­culates.
Heating circuit pump
Circulation pump for the circulation of the heating water in the heating circuit.
Actual temperature
Current temperature at the time of the scan; e.g. actual DHW temperature.
Boiler water temperature
See "Constant temperature operation".
Open flue operation
The combustion air is drawn from the room where the boiler is installed.
5592 683 GB
23
Page 24

Keyword index

Keyword index
A
Actual temperature.....................................................23
Additional settings........................................................ 7
B
Balanced flue operation............................................. 23
Boiler number.............................................................18
Boiler water temperature............................................23
Boiler water temperature, setting............................... 11
Burner...................................................................... 7, 8
C
Calling up
– Fault message.........................................................16
– Information.............................................................. 15
– Operating conditions............................................... 15
– Service message.....................................................16
– Temperatures.......................................................... 15
Calling up information................................................ 15
Calling up operating conditions.................................. 15
Calling up the actual temperature.............................. 15
Central heating.........................................................7, 8
– Factory setting...........................................................5
– Operating program.................................................. 11
– Required settings.................................................... 11
– Room temperature.................................................. 11
– Stopping.................................................................. 11
Cleaning..................................................................... 22
Cleaning information.................................................. 22
Cold rooms.................................................................20
Comfort function
– Activating.................................................................13
– Ending..................................................................... 13
Comfort mode.............................................................. 7
Commissioning.........................................................5, 9
Constant temperature operation................................ 23
Control..........................................................................7
– Controls.....................................................................7
– How to use the controls.............................................7
Controls........................................................................7
Cylinder loading pump........................................... 8, 23
D
DHW heating............................................................5, 7
– DHW temperature................................................... 12
– Factory setting...........................................................5
– Operating program.................................................. 12
– Required settings.................................................... 12
– Stopping.................................................................. 12
DHW temperature, setting..........................................12
Drinking water filter.................................................... 23
E
Emissions test mode.............................................. 7, 19
Energy saving function...............................................13
F
Factory setting..........................................................5, 8
Fault 20, 21
–ã.......................................................................20, 21
–E.......................................................................20, 21
Fault indicator...............................................................9
Fault message..............................................................7
– Acknowledging........................................................ 16
– Calling up................................................................ 16
– Calling up (acknowledged)......................................17
Filter........................................................................... 23
Frost protection.......................................................5, 11
Frost protection monitoring............................ 7, 8, 9, 12
H
Heating and DHW........................................................ 5
Heating circuit............................................................ 23
Heating circuit pump.............................................. 8, 23
Heating flow temperature........................................... 11
Heating mode
– Setting..................................................................... 11
Heating operation
– Constant temperature............................................. 23
Heating system
– Starting......................................................................9
– Stopping.................................................................... 9
Hot water....................................................................21
How to use the controls................................................7
I
Information................................................................... 7
Inspection...................................................................22
M
Maintenance...............................................................22
Maintenance contract.................................................22
Menu............................................................................ 7
Multi boiler systems
– Boiler number..........................................................18
– Boiler water temperature.........................................18
– Operating program.................................................. 18
– Room temperature.................................................. 18
– Special considerations............................................ 18
N
No hot water...............................................................20
Notice of completion.....................................................5
O
ON/OFF switch.......................................................9, 10
ON indicator................................................................. 9
Only central heating................................................... 12
Open flue operation....................................................23
Operating program................................................. 7, 23
– DHW heating...........................................................12
– For central heating.................................................. 11
– Multi boiler system.................................................. 18
24
5592 683 GB
Page 25
Keyword index (cont.)
Keyword index
P
Power failure................................................................ 5
Pressure display...........................................................9
Pressure gauge............................................................9
Programming unit.........................................................7
Pump
– Cylinder................................................................... 23
– Heating circuit......................................................... 23
R
Remote control.............................................................7
Repair work................................................................ 22
Reset......................................................................8, 14
Resetting burner starts...............................................15
Resetting data............................................................ 15
Resetting fuel consumption........................................15
Resetting hours run....................................................15
Restoring factory settings...........................................14
Rooms too cold.......................................................... 20
Rooms too warm........................................................ 20
Room temperature
– Setting..................................................................... 11
– With room temperature control unit......................... 11
Room temperature control unit.....................................7
S
Safety valve................................................................23
Saving energy.............................................................. 6
Service....................................................................... 21
Service interval hours run............................................ 7
Service message..........................................................7
– Acknowledging........................................................ 16
– Calling up................................................................ 16
– Calling up (acknowledged)......................................16
Set temperature......................................................... 23
Settings
– For central heating.................................................. 11
– For DHW heating.................................................... 12
Shutdown................................................................... 10
Standard display.......................................................... 7
Standard settings....................................................... 14
Standby mode........................................ 7, 9, 11, 12, 23
Starting
– Comfort function......................................................13
– Energy saving function............................................13
– Frost protection monitoring....................................... 9
– Heating system......................................................... 9
– Standby mode..................................................... 9, 11
– Summer mode.........................................................11
Starting the appliance.................................................. 9
Stopping
– Central heating........................................................ 11
– DHW heating...........................................................12
– Heating system with frost protection monitoring....... 9
– Heating system without frost protection monitoring 10
Stopping the heating system........................................9
Summer mode......................................................11, 23
Symbols on the display................................................ 7
T
Temperature.................................................................8
– Actual temperature..................................................23
– Boiler water............................................................. 23
– Calling up................................................................ 15
– DHW........................................................................12
– Multi boiler system.................................................. 18
– Room temperature.................................................. 11
– Set temperature...................................................... 23
Temperature unit........................................................ 14
Terminology................................................................23
Test mode...................................................................19
Troubleshooting 20
– ................................................................................ 20
W
Warm rooms...............................................................20
Water too cold............................................................ 20
Water too hot..............................................................21
Where to find the controls............................................ 7
Winter mode...............................................................23
5592 683 GB
25
Page 26
26
5592 683 GB
Page 27
5592 683 GB
27
Page 28
Your contact
Contact your local contractor if you have any questions regarding the maintenance and repair of your system. You may, for example, find local contractors on the internet under www.viessmann.com.
28
Viessmann Werke GmbH&Co KG D-35107 Allendorf Telephone: +49 6452 70-0 Fax: +49 6452 70-2780 www.viessmann.com
Viessmann Limited Hortonwood 30, Telford Shropshire, TF1 7YP, GB Telephone: +44 1952 675000 Fax: +44 1952 675040 E-mail: info-uk@viessmann.com
5592 683 GB Subject to technical modifications.
Loading...