Metro Therm SHK 200S, Installation And Operating Manual

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17 SHK 200S
SHK 200S-6
Connection to the heat pump
Connection when operating without a
heat pump
Connection of hot and cold water
SHK 200S / SHK 200S-6 is not equipped with cut-off
valves, which must be installed outside the indoor mod-
ule to make future maintenance easier.
When connecting to the installation where all heaters/
floor heating pipes have been equipped with thermo -
stat valves, in order to assure appropriate flow, install
a discharge valve or a buffer in the parallel layout, or
remove several thermostats.
No change is required to the hydraulic connections
configuration for the internal unit to operate individu -
ally, without an external unit.
The installation of the mixing valve is necessary
if factory settings are changed in a way where the
temperature can exceed 60 °C. When changing the
factory settings, follow the national regulations in this
respect. The setting is entered in menu 5.1.1.
Heating system connection
The system can be extended with additional heating cir-
cuits only when provided an additional expansion card
After using an AXC30 card or a ECS 41 kit, an additional
heating circuit can be activated in the controller.
Cooling system connection
Cooling is controlled by sensor BT64 and isolation
valve QN12. If cooling is needed, the isolation valve
changes the direction, and opens from the cooling
circuit side.
Connecting an additional heating circuit
Connection options
P
P
Additional accessories and options and how to connect
them are described in the AXC30 or ECS41 manual.
Chapter 4 | Pipe connections
P
P
IMPORTANT
Water supply uti lity must have necessarily installed
safety valve which will protect against excessive in-
crease of pressure.
IMPORTANT
Do not use the heater if there is a blockage of the safe-
ty valve.
P
P
P
P
P
P
IMPORTANT
Installation of any narrowing (e.g. reducers, filters etc.)
and shut-off valves between the heater and the safety
valve is not allowed. It is only permitted mounting three-
way adapter with drain valve that allows to empty the
tank and three-way adapter with expansion vessel.