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10
C.1. HYDRAULIC CONNECTION OF THE LOAD UNIT
HOW TO PROCEED:
Make hydraulic connections of the boiler, heating system, thermal store(s) or hot water
tank(s) with the load unit, respecting the selected hydraulic variant (see the following pages)
→ Fill and air bleed the system → Perform a pressure test → Place temperature sensors to
the respective sheaths depending on the selected hydraulic variant → Mount the outdoor
temperature sensor on a north-facing wall about 1.5-3m
above the ground.
HOW TO CONNECT PIPING
The load unit has two side outlets from ball valves for
connecting optional accessories (plugged) from ball valves
11, which are connected with the boiler remain connected
with the boiler even when the ball valves are closed.
Before starting operation, make sure all ball valves
are in the open position
(the open/closed position on ball
valves inside the load unit is shown by the groove position).
Piping connections
Inner hydraulic connection
Pos. Description
Conn.
Key to components
1
2
Return from heating system
Outlet to heating system
G 1“ F
Ball valve w. drain
valve
3
4
Flow from boiler
Return to boiler
G 1“ F
Load valve
5
6
Outlet to thermal store w. ball valve
(enclosed)
Return from thermal store w. ball valve
(enclosed)
G 1“ F
Mixing valve w.
actuator
7
8
Ball valve w. integrated check and drain
valves*
Ball valve w. integrated drain valve*
Ball valve w. outlet to
connect optional acce
-
ssories
9
10
Load valve
Mixing valve w. actuator
Ball valve w. integrated
check and drain valves
11 Ball valve w. outlet to connect optional
accessories
G 1/2“ F
(plugged
from the
factory)
1
2
3
4
5
6
7
8
9
10
11
11
* remains connected with the boiler/heating system even when the ball valve is closed
drážka kolmo
na směr proudění
zavřeno
otevřeno
drážka ve směru
proudění
groove
perpendicular to the
direction of flow
shut
groove in the
direction of flow
open
