Diaphragm expansion vessels
Install separate diaphragm expansion vessels for the brine and
heating circuits.
Technical guide
For further details regarding the design and sizing, see the
"Vitocal 200-G/222-G/242-G technical guide".
Accessories
Brine accessory pack
Part no. Z002 394
Assembled connection set.
Components:
&
Expansion vessel with 25 litres capacity, cap valve and wall
retainer
&
Pressure switch connection
&
Air s eparator
&
Safety val ve 3 bar
&
Pressure gauge
&
2 fi ll & drain valves
&
Compression fittings
&
3 shut-off valves
&
Expansion vessel connection
&
Anti-vibration wall retainer (with rawl plugs 7 10 mm and fixing
screws)
Ground collector brine distributor
Part no. 7143 762
Up to 4 brine distributors can be connected to each flow and
return.
Components:
&
Brass distributor with 2 × 1¼" headers (flow and return)
&
Flow and return connectors for 10 brine circuits via locking ring
fittings for PE 20 × 2.0 mm, for individual installation; can be
closed with ball shut-off valves
&
2 Qui ck-acting air vent valves
&
2 Fil l & drain valves
&
Manifold pre-assembled on two anti-vibration mounting brackets
&
May be fitted to the house wall, in the cellar duct or i n the central
service duct
Ground collector/ground probe brine distributor
Part no. 7182 043 (PE 25 x 2.3) or 7143 763 (PE 32 x 2.9)
Up to 4 brine distributors can be connected to each flow and
return.
Components:
&
Brass distributor with 2 × 1½" headers (flow and return)
&
Flow and return connectors for 4 brine circuits via locking ring
fittings; for individual installation; can be closed with ball shutoff valves
&
2 fi ll & drain valves
&
Can be fitted via the installation accessories (standard delivery)
to the house wall, in a cellar duct or in the central service duct
Brine circuit pressure switch
Part no. 9532 663
"Tyfocor" heat transfer medium
Part no. 9532 655 (30 litre) or 9542 602 (200 litre)
&
Ready-mixed medium to -15 °C for the brine circuit
Liquid based on ethylene glycol, light green
&
In a disposable container
NC-Box
Part no. 7244 673 (without mixer), 7244 674 (with mixer)
Pre-assembled unit for implementing the natural cooling fu nction
with on e heating/cooling circuit (with or without mixer).
For the connection, for example of underfloor heating systems,
fan convectors or cooling ceilings.
Max. refrigerating capacity 5 kW (subject to the heat pump and
cooling source used).
Components:
&
Plate-type heat exchanger
&
Frost protection valve
&
Frost stat
&
Natural cooling contact humidistat
&
Brine c ircuit pump (only for the NC-Box with mixer)
&
Cooling cir cuit pump
5822 347-2 GB
VITOCAL 200-G VIESMANN 11
Design information (cont.)