Viessmann Vitoclima 300-S Betriebsanleitung
VIESMANN
Service instructions
for contractors
Vitoclima 300-S
Single split air-conditioning unit with inverter technology
Comprising an external unit and an internal device
For applicability, see the last page
VITOCLIMA 300-S
5692 687 GB 8/2008 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 687 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 687 GB
Commissioning, inspection, maintenance
Steps - commissioning, inspection and maintenance ................................... 5
Further details regarding the individual steps .............................................. 7
Troubleshooting
Diagnosis ................................................................................................... 15
Refrigerant circuit..................................................................................... 30
Connection and wiring diagrams
Internal devices .......................................................................................... 31
External units ............................................................................................. 38
Parts lists
Parts lists, internal devices ......................................................................... 42
Parts list, external units............................................................................... 43
Commissioning/service reports
Maintenance checklist Vitoclima 200-S/300-S ............................................. 44
Specification
Specification............................................................................................... 46
Specification, internal devices..................................................................... 49
Specification external units ......................................................................... 51
Certificates
Declaration of conformity ............................................................................ 52
Keyword index .......................................................................................... 53
Index
4
Index
5692 687 GB
For further information regarding the individual steps, see the page indicated
Commissioning steps
Inspection steps
Maintenance steps Page
!!!
••• 01. Switching OFF the unit and the main fuse/MCB ........ 7
•02. Evacuating the refrigerant lines and the internal
device ........................................................................................ 7
•03. Filling the refrigerant lines and internal device
with refrigerant ...................................................................... 8
••• 04. Checking the refrigerant lines for leaks ....................... 10
•05. Checking the oil lifting bends in the vacuum pipe . . . 10
•06. Checking the thermal insulation at the flanged
connections
• • 07. Checking the tightness of electrical connections
••• 08. Checking the condensate drain of the internal
device ........................................................................................ 11
••• 09. Checking the free rotation of the external fan............ 12
•10. Cleaning the heat exchanger of the external unit ..... 12
• • 11. Cleaning the air filter of the internal device ................ 13
• • 12. Replacing or cleaning the electrostatic filter of the
internal device (if installed)............................................... 13
• • 13. Replacing the active charcoal filter (if installed) ...... 13
••• 14. Switching ON the main fuse/MCB
••• 15. Switching the unit ON.......................................................... 14
••• 16. Checking the unit for unusual noises
••• 17. Checking the system function (output test) ............... 14
• • 18. Checking the display of the remote control
•19. Twice annual maintenance in accordance with the
checklist from page 44
•20. Instructing the system user
Steps - commissioning, inspection and maintenance
5
Commissioning, inspection, maintenance
5692 687 GB
Commissioning steps
Inspection steps
Maintenance steps Page
!!!
21. Charging the external unit with refrigerant (if units/
devices must be separated) .............................................. 14
Steps - commissioning, inspection and . . . (cont.)
6
Commissioning, inspection, maintenance
5692 687 GB
Switching OFF the unit and the main fuse/MCB
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.
Evacuating the refrigerant lines and the internal device
Note
Prior to evacuating the system, carry out a leak test (pressure test with dried
nitrogen).
AVacuum pump
Further details regarding the individual steps
7
Commissioning, inspection, maintenance
5692 687 GB
BFilling hose for connecting the
pressure gauge set and the
vacuum pump
CPressure gauge set
DFilling hose for the suction side
(one hose end with valve)
EExternal unit
FInternal device
GSuction line
HLiquid line
KService valve with protective cap
LThree-way valve
Evacuate the system at the service
valve of the external unit.
1. Connect the ends of the filling hose
without valves with the inlet con-
nection of pressure gauge set C.
2. Remove protective cap from ser-
vice valve Kof three-way diverter
valve Land connect filling hose
D.
3. Connect the centre hose Bof
pressure gauge set Cwith
vacuum pump A.
4. Start vacuum pump A.
Let the pump run for 15 min.
5. Close the valve between pressure
gauge set Cand vacuum pump.
Stop vacuum pump Aand wait 5
min.
Should the indicated value change
within this period, that would indi-
cate a leak.
Remove the leak and repeat the
process.
6. Run vacuum pump Auntil a
vacuum has been built (the value
indicated by the pressure gauge
must be near to 0 bar).
Note
The pump runtime will be subject to
the ambient conditions.
7. Remove filling hose Dfrom ser-
vice valve K, then first fit and sub-
sequently tighten the protective
cap with 11 to 13 Nm.
Filling the refrigerant lines and internal device with refriger-
ant
Note
The external unit is already pre-filled with refrigerant.
With longer lines it may be necessary to top up the system with refrigerant. See
"Specification" on page 51.
Further details regarding the individual steps (cont.)
8
Commissioning, inspection, maintenance
5692 687 GB
AValve (liquid line)
BValve shut-off (open/close with an
Allen key)
CProtective valve cap
DThree-way valve (suction line)
EValve shut-off (open/close with an
Allen key)
FProtective valve cap
GSuction line
HLiquid line
KExternal unit
1. Remove protective valve caps C
and Ffrom valves Aand Dof
external unit K.
2. Open valve locksBand Ewith
an Allen key.
3. Fit and tighten protective valve
caps Cand Fwith 11 to 13 Nm.
Further details regarding the individual steps (cont.)
9
Commissioning, inspection, maintenance
5692 687 GB
Checking the refrigerant lines for leaks
Danger
Prevent an unregulated escape
of R 410A in sealed rooms;
ensure adequate ventilation.
Always observe all relevant
regulations and directives
regarding the handling of
refrigerant.
Note
In this refrigerant circuit the refriger-
ant R 410A is used. R 410A is a non-
toxic gas that displaces air and is
composed of two constituents.
&R 32 (CH2F2): 60 % total proportion
&R 125 (CF3CHF2): 40 % total pro-
portion
The above specifications are subject
to modification without prior notice.
Check all flanged connections of the
refrigerant lines between the internal
device and the external unit for refrig-
erant leaks.
Check all soldered points and connec-
tions of the refrigerant lines in the
internal device and the external unit
for refrigerant leaks.
Further work on the refrigeration cir-
cuit must only be carried out by a qua-
lified refrigeration engineer.
Checking the oil lifting bends in the vacuum pipe
Not applicable to type OS307H.
Install oil lifting bends in the vertical line at the lowest point and at distances of 5
m.
Further details regarding the individual steps (cont.)
10
Commissioning, inspection, maintenance
5692 687 GB
Andere Handbücher für Vitoclima 300-S
1
Inhaltsverzeichnis
Andere Viessmann Klimaanlage Handbücher
