Viessmann VITOCROSSAL 300 User manual

Please file in Service Binder
5673 650 - 01 04/2015
Operating Instructions
VITOCROSSAL 300
With Vitotronic 200 KW6B Controls
Vitocrossal 300
CU3A Series 26 to 57
Floor mounted, gas-fired condensing boiler with MatriX gas burner and Lambda Pro control
For operation with natural gas and liquid propane gas
Heating input 19 to 199 MBH
5.6 to 58 kW
Read and save these instructions
for future reference.
Product may not be exactly as shown
IMPORTANT
H
Do not store or use gasoline or other
flammable liquids in the vicinity of this
or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliances.
Do not touch any electrical switches,
do not use any phone in your building.
Immediately call your gas supplier
from a neighbor’s phone. Follow
the gas supplier’s instructions.
If you cannot reach your gas supplier,
call the fire department.
Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
If the information in this manual is not followed
exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
WARNING
Improper installation, adjustment, and/
or operation could cause carbon monoxide
poisoning resulting in injury or loss of life.
This product must be installed and serviced
by a professional service technician who is
experienced and qualified in hot water boiler
installation and gas combustion.
WARNING

Vitocrossal 300 CU3A 26 to 57 Operating
5673 650 - 01
Safety
Safety, Installation and Warranty Requirements
Please ensure that these instructions are read and understood before commencing installation. Failure to comply with
the instructions listed below and details printed in this manual can cause product/property damage, severe personal
injury, and/or loss of life. Ensure all requirements below are understood and fulfilled (including detailed information
found in manual subsections).
WARNING
Installers must follow local regulations with respect to
installation of carbon monoxide detectors. Follow the
Viessmann maintenance schedule of the boiler contained
in this manual.
Product documentation
Read all applicable documentation before commencing
installation. Store documentation near boiler in a
readily accessible location for reference in the future
by service personnel.
For a listing of applicable literature,
please see section entitled “Important
Regulatory and Safety Requirements”.
Warranty
Information contained in this and
related product documentation must
be read and followed. Failure to do
so renders the warranty null and void.
Licensed professional heating contractor
The installation, adjustment, service and maintenance
of this equipment must be performed by a licensed
professional heating contractor.
Please see section entitled
“Important Regulatory and Installation
Requirements”.
Contaminated air
Air contaminated by chemicals can cause by-products
in the combustion process, which are poisonous to
inhabitants and destructive to
Viessmann equipment.
For a listing of chemicals which
cannot be stored in or near the
boiler room, please see subsection
entitled “Mechanical room” in the
“Installation Instructions”.
Advice to owner
Once the installation work is complete, the heating
contractor must familiarize the system operator/
ultimate owner with all equipment, as well as safety
precautions/requirements, shutdown procedure, and
the need for professional service annually before the
heating season begins.
Carbon monoxide
Improper installation, adjustment, service and/or
maintenance can cause flue products to flow into
living space. Flue products contain poisonous carbon
monoxide gas.
For information pertaining to the
proper installation, adjustment, service
and maintenance of this equipment to
avoid formation of carbon monoxide,
please see subsection entitled
“Mechanical room” and “Venting
requirements” in the “Installation Instructions”.
Fresh air
This equipment requires fresh air for
safe operation and must be installed
ensuring provisions for adequate
combustion and ventilation air exist.
For information pertaining to the
fresh air requirements of this product,
please see subsection entitled
“Mechanical room” in the “Installation
Instructions”.
Equipment venting
Never operate boiler without an installed venting
system. An improper venting system can cause
carbon monoxide poisoning.
For information pertaining to
venting and chimney requirements,
please see section entitled “Venting
Connection”. All products of
combustion must be safely vented
to the outdoors.
Operating and Service Documentation
It is recommended that all product documentation such
as parts lists, operating and service instructions be handed
over to the system user for storage. Documentation is to
be stored near boiler in a readily accessible location for
reference by service personnel.
WARNING
This boiler requires fresh air for safe operation and must
be installed with provisions for adequate combustion
and ventilation air (in accordance with local codes and
regulations of authorities having jurisdiction).
Do not operate this boiler in areas with contaminated
combustion air. High levels of contaminants such as
dust, lint or chemicals can be found at construction
sites, home renovations, in garages, workshops, in dry
cleaning/laundry facilities, near swimming pools and in
manufacturing facilities.
Contaminated combustion air will damage the boiler
and may lead to substantial property damage, severe
personal injury and/or loss of life. Ensure boiler/burner
is inspected and serviced by a qualified heating
contractor at least once a year in accordance with the
Service Instructions of the boiler.
2

Table of Contents
3
Page
Vitocrossal 300 CU3A 26 to 57 Operating
5673 650 - 01
Safety
General Information
Controls
Operation
Safety, Installation and Warranty Requirements..............2
About these Instructions.............................................6
For your Safety ..........................................................6
Operation .............................................................6
Working on the equipment ......................................6
Maintenance and cleaning.......................................6
Flue gas smell .......................................................6
Dangerous conditions .............................................6
Technical information .............................................6
Carbon monoxide...................................................7
For safe operation..................................................7
Frozen water pipe hazard ........................................8
Replacement components, spare and wear parts........8
Installation area conditions......................................8
Sources of combustion and ventilation air
contaminants ........................................................8
Commissioning ..........................................................9
Terminology ..............................................................9
Your System is Preset at the Factory ............................9
Central heating ......................................................9
Time and date .......................................................9
Power failure.........................................................9
DWH heating ........................................................9
Frost protection .....................................................9
Wintertime/summertime changeover.........................9
Energy Savings Tips .................................................10
Central heating ....................................................10
DHW heating ......................................................10
Tips for More Comfort ..............................................11
DHW heating ......................................................11
Central heating ....................................................11
Opening the Control Unit...........................................11
Overview of Controls................................................12
Modular structure ................................................12
Programming unit (H01B)......................................12
Programming Unit ....................................................13
“Help” menu .......................................................13
Symbols .............................................................13
Standard Menu ........................................................14
Setting the standard room temperature for the
primary heating circuit..........................................14
Setting the operation program for the
primary heating circuit..........................................14
Extended Menu ........................................................14
How to Use the Controls...........................................15
Operating Program ...................................................16
Operating programs for central heating, DHW, frost
protection ...........................................................16
Special operating programs ...................................15
With frost protection monitoring ............................16
Without frost protection monitoring........................16
Information on a prolonged shutdown.....................16
Time Program ..........................................................17
Example of time phases within the time program for
central heating ....................................................17
Setting a time program .........................................17
Setting a time program using central heating ...........17
Setting the time program efficiently .......................18
Deleting time phases ............................................18

Table of Contents
4
Page
Vitocrossal 300 CU3A 26 to 57 Operating
5673 650 - 01
Start-up/Shutdown
Central Heating
DHW Heating
Additional Adjustments
Starting the Heating System ......................................19
Shutting Down the Heating System ............................19
With frost protection monitoring ............................19
For the primary heating circuit ...............................19
For all heating circuits ..........................................19
Pump exercise function ........................................19
Ending the heating program “Standby mode” ..........19
Without frost protection monitoring........................19
Information on an extended shutdown....................19
Room Temperature ...................................................20
Setting the standard room temperature for central
heating...............................................................20
Setting the reduced room temperature for central
heating ..............................................................20
Setting the Operating Program for Central Heating........20
Time Program ..........................................................20
Setting the time program for central heating............20
Heating Curve..........................................................21
Setting the heating curve......................................21
End Central Heating..................................................21
For the primary heating circuit ...............................21
Comfort Function “Party Mode...................................22
Selecting the comfort function “Party mode”...........22
Setting “Party mode” for central heating.................22
Cancelling “Party mode” .......................................22
Energy Saving Function “Economy Mode” ...................22
Selecting the energy savings function “Economy mode” 22
Setting “Economy mode” for central heating ...........22
Cancelling “Economy mode” .................................22
Energy Saving Function “Holiday Program”..................23
Selecting the energy savings function “Holiday
program” ............................................................23
Setting “Holiday Program” for central heating..........23
Display in the exended menu.................................23
Cancelling or deleting the “Holiday program”...........23
Setting the DHW Temperature ...................................24
Factory setting 122ºF (50ºC) ................................24
Operating Program ...................................................24
Setting the operating program for DHW heating.......24
Time Program ..........................................................25
Setting the time program for DHW heating..............25
DHW heating outside of the time program...............25
Setting the time program for the DHW recirculation
pump .................................................................25
Switching Off DHW Heating ......................................26
Setting the Display Contrast ......................................27
Setting the Display Brightness....................................27
Entering Names for the Heating Circuits ......................27
Setting the Primary Heating Circuit for the
Standard Menu ........................................................28
Setting the Time and Date.........................................28
Language Selection ..................................................28
Setting the Temperature Unit ºF ºC.............................29
Restoring Factory Settings.........................................29

Table of Contents
5
Page
5673 650 - 01
Scanning Information................................................30
Calling up the solar yield in conjunction with solar
thermal systems ..................................................30
Resetting data .....................................................30
Scanning the Service Messages .................................31
Calling up an acknowledged service message ..........31
Scanning Fault Messages ..........................................32
Calling up an acknowledged fault message..............32
Emissions Test Mode ................................................33
Ending emissions test mode ..................................33
Rooms are too Cold ..................................................34
Rooms are too Hot ...................................................35
There is no Hot Water...............................................35
The DHW is too Hot .................................................35
“Flashes” and “Fault” is Displayed..............................36
“Flashes” and “Service” is Displayed ..........................36
“Controls Locked Out” is Displayed ............................36
“External Hook-up” is Displayed .................................36
“External Program” is Displayed .................................36
Inspection/Cleaning/Maintenance................................37
Cleaning .............................................................37
Inspection and maintenance ..................................37
Boiler .................................................................37
DHW tank...........................................................37
Safety valve (DHW tank) ......................................37
Potable water filter (if installed) .............................37
Overview of Extended Menu......................................38
Calling up Options Under “Information”.......................39
Scanning options in the extended menu..................39
Terminology ............................................................40
Operating program ...............................................40
Operating status ..................................................40
Extension kit for heating circuit with mixing valve....40
Mixing valve .......................................................40
Under floor heating system ...................................40
Standard heating mode.........................................40
Reduced heating mode .........................................40
Room temperature-dependent heating mode............40
Weather-compensated heating mode ......................40
Heating curve......................................................41
Heating circuit.....................................................42
Heating circuit pump ............................................42
Room temperature ...............................................42
Safety valve........................................................42
Solar circuit pump................................................42
Set temperature...................................................42
DHW pump .........................................................42
Drinking water filter .............................................42
Weather-compensated heating mode ......................42
DHW recirculation pump .......................................42
Vitocrossal 300 CU3A 26 to 57 Operating
Scanning
Emissions
Troubleshooting
Maintenance
Additional Information