Viessmann Vitoclima 200-C Mode d'emploi
VIESMANN
Service instructions
for contractors
Vitoclima 200-C
Chillers for external installation as 230 V version
For cooling as well as for cooling and heating operation
For applicability, see the last page
VITOCLIMA 200-C
5692 695 GB 2/2007 Please keep safe.
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 instructions are exclusively
designed for qualified personnel.
&Work on the refrigeration circuit
must only be carried out by qualified
and authorised refrigeration engi-
neers.
&Work on electrical equipment must
only be carried out by a qualified
electrician.
&The system must be commissioned
by the system installer or a qualified
person authorised by the installer.
Regulations
Observe the following when working
on this system
&all legal instructions regarding the
prevention of accidents,
&all legal instructions regarding
environmental protection,
&the Code of Practice of relevant
trade associations.
&all current safety regulations as
defined by DIN, EN, VDE and all
locally applicable standards
Working on the system
&Isolate the system from the power
supply and check that it is no longer
'live', e.g. by removing a separate
fuse or by means of a main isolator.
&Danger
Contact with 'live' compo-
nents can lead to severe inju-
ries. Some components on
the PCBs will remain 'live'
even after the power supply
has been switched OFF.
&Prior to removing equipment
covers wait at least 4 min. to
allow the voltage to dissi-
pate.
&Safeguard the system against
unauthorised reconnection.
!Please note
Electronic modules can be
damaged by electrostatic dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Safety instructions
2
Safety instructions
5692 695 GB
Repair work
!Please note
Repairing components that ful-
fil a safety function can com-
promise the safe operation of
your system.
Replace faulty components
only with original Viessmann
spare parts.
Ancillary components, spare and
wearing parts
!Please note
Spare and wearing parts that
have not been tested together
with the heating system can
compromise its function. Instal-
ling non-authorised compo-
nents and non-approved
modifications or conversions
can compromise safety and
may invalidate our warranty.
For replacements, use only ori-
ginal spare parts supplied or
approved by Viessmann.
Safety instructions (cont.)
3
Safety instructions
5692 695 GB
Unit layout
Unit layout .................................................................................................. 5
Connection and wiring diagrams ................................................................. 6
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance ................................... 7
Further details regarding the individual steps .............................................. 9
Troubleshooting
Control unit diagnostics .............................................................................. 23
Diagnosis ................................................................................................... 26
Control settings
Menu structure overview ............................................................................. 28
Scanning and changing parameters ............................................................ 30
Code entry.................................................................................................. 30
Selecting the set value for heating mode (HEA) ........................................... 31
Selecting the set value for cooling mode (Coo) ............................................ 32
Scanning sensor values.............................................................................. 32
Components
Differential pressure regulator..................................................................... 34
Refrigerant circuits
Unit for cooling mode .................................................................................. 35
Unit for heating and cooling mode ............................................................... 36
Parts lists
Parts list Vitoclima 200-C, type OC208........................................................ 37
Parts list fan convectors, type V202H to V209H........................................... 37
Parts list ceiling cassette devices, type C202H to C205H ............................ 38
Parts list duct mounted devices, type DC205H to DC210H........................... 38
Commissioning/service reports
Test report .................................................................................................. 39
Specification............................................................................................. 41
Certificates
Declaration of conformity ............................................................................ 43
Keyword index .......................................................................................... 44
Index
4
Index
5692 695 GB
AManual air vent valve on the flow
BON/OFF switch
CProgramming unit
DCover for the circulation pump
EPhase monitor (only for 400 V ver-
sion)
FDiaphragm expansion vessel
GFill & drain valve
Unit layout
5
Unit layout
5692 695 GB
AManual air vent valve
BService valves, low pressure side
CService valve, high pressure side
DSafety valve, hydraulic circuit
Connection and wiring diagrams
The connection and wiring diagrams
are affixed to the inside of the front
panel.
Unit layout (cont.)
6
Unit layout
5692 695 GB
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
!!!
••• 01. Switching OFF the main fuse/MCB and the system
ON/OFF switch ....................................................................... 9
••• 02. Checking the refrigerant circuit for leaks.................... 9
•03. Filling the system.................................................................. 9
••• 04. Checking the diaphragm expansion vessel and the
pressure of the hydraulic circuit..................................... 10
• • 05. Cleaning the water filter ..................................................... 11
•06. Cleaning the condensate drain........................................ 12
••• 07. Checking the free rotation of the fan ............................. 12
•08. Cleaning the air heat exchanger...................................... 12
••• 09. Checking the function of the safety valve
• • 10. Checking the tightness of electrical connections . . . . 13
••• 11. Switching ON/connecting the main fuse
••• 12. Switching the system ON/OFF switch ON (if
installed)
•13. Placing the unit in standby mode ................................... 14
••• 14. Ensuring that load is drawn .............................................. 14
••• 15. Switching the unit ON.......................................................... 14
•16. Adjusting parameters HEA and H31 .............................. 15
•17. Adjusting the throughput in the hydraulic circuit . . . . 15
• • 18. Checking the set values and adjusting, if required. . 18
•19. Checking superheating and correcting, if required
(cooling mode) ....................................................................... 18
•20. Checking the evaporator parameters............................ 19
•21. Checking the high pressure switch ............................... 19
•22. Checking the low pressure switch ................................. 19
Steps - commissioning, inspection and maintenance
7
Commissioning, inspection, maintenance
5692 695 GB
Commissioning steps
Inspection steps
Maintenance steps Page
!!!
•23. Checking the water side of the evaporator for
contamination ........................................................................ 19
•24. Checking the antifreeze concentration in the
hydraulic circuit .................................................................... 20
•25. Checking the compressor ................................................. 20
•26. Checking the oil sump heater........................................... 20
•27. Checking the compressor power consumption ........ 20
•28. Checking the fan power consumption .......................... 21
•29. Checking the contactors .................................................... 21
•30. Checking the protective motor switch .......................... 21
•31. Checking the thermostat.................................................... 21
•32. Checking the cables............................................................. 21
•33. Checking the temperature sensors................................ 21
•34. Checking the relays ............................................................. 22
•35. Instructing the system user
Steps - commissioning, inspection and . . . (cont.)
8
Commissioning, inspection, maintenance
5692 695 GB
Switching OFF the main fuse/MCB and the system ON/OFF
switch
Danger
Touching 'live' components can result in the transfer of dangerous body
currents.
Isolate the unit from the power supply, check that it is no longer 'live' and
safeguard against unauthorised reconnection.
Checking the refrigerant circuit for leaks
Danger
An escape of R 407C in sealed
rooms and in hollows can
result in suffocation due to its
air displacing characteristics.
Prevent the unregulated
escape of R 407C in sealed
rooms; ensure adequate venti-
lation.
Always observe all relevant
regulations and directives
regarding the handling of
refrigerant.
Danger
Touching components of the
refrigerant circuit can cause
burns or frostbite.
Touch these components only
with protective gloves.
Check the interior of the equipment
with a refrigerant leak detector or leak
detection spray for refrigerant leaks.
1. Remove the front panel.
2. Check the floor area, valves and all
visible solder joints for traces of oil.
3. Check the thermal insulation of the
refrigerant circuit.
4. Record the implementation of the
work in the service report from
page 39.
Further work on the refrigeration cir-
cuit must only be carried out by a qua-
lified refrigeration engineer.
Filling the system
1. Open the shut-off valves and any
installed non-return valves.
Further details regarding the individual steps
9
Commissioning, inspection, maintenance
5692 695 GB
2. Check the inlet pressure of the
internal (and, if installed, external)
diaphragm expansion vessel.
Note
For the position of the internal dia-
phragm expansion vessels, see
unit layouts from page 5.
3. Thoroughly flush the system.
4. Fill the system with process med-
ium and fully vent the system via
the fill & drain valve (for position,
see unit layouts from page 5).
Note
The equipment is fitted with two
manual air vent valves (for posi-
tion, see Ain Fig. on page 5
and 6)
Observe the details regarding the
handling of antifreeze on page 20.
5. Check the system pressure (see
page 11).
6. Return the non-return valves (if
installed) into their operating posi-
tion.
Checking the diaphragm expansion vessel and the pressure
of the hydraulic circuit
Carry out this test on a cold system.
1. Drain the system on the heating
water side and reduce the pressure
until the pressure gauge indicates
"0".
2. If the inlet pressure of the dia-
phragm expansion vessel is lower
than the static system pressure,
top up with sufficient nitrogen to
raise the inlet pressure 0.2 bar
higher than the static system pres-
sure.
Further details regarding the individual steps (cont.)
10
Commissioning, inspection, maintenance
5692 695 GB
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