General
This accessory is used when your climate unit is installed
in buildings with several climate systems
1
that require
different supply temperatures, for example in cases
where the building has both a radiator system and an
underfloor heating system. See “Compatible products”
below to see which climate units ECS 40/ECS 41 can
be connected to.
The total water flow in the climate systems should not
exceed 1,700 l/h.
Caution
With underfloor heating systems, maximum
supply temperature for heating is normally be
set between 35 and 45°C.
Check the max temperature for your floor with
your floor supplier.
Caution
If the room sensor is used in a room with un-
derfloor heating, it should only have an indicat-
ory function, not control of the room temperat-
ure.
COMPATIBLE PRODUCTS
• S1155
• S1255
• VVM S320
• VVM S325
• SMO S40
CONTENTS
AXC module1 x
Cable ties4 x
Circulation pump1 x
Contact1 x
Shunt motor1 x
Shunt valve1 x
Heating pipe paste2 x
Aluminium tape2 x
Insulation tape1 x
Replacement gasket2 x
Temperature sensor2 x
Room sensor1 x
Pipe with straight coupling
2
1 x
COMPONENT LOCATION, AXC MODULE
(AA25)
AA5-X4 AA5-S2
AA5-X2
AA5
AA25-X1
AA5-X9
AA25-FC1
ELECTRICAL COMPONENTS
Accessory cardAA5
DIP switchAA5-S2
Terminal block, inputsAA5-X2
Terminal block, communicationAA5-X4
Terminal block, outputsAA5-X9
AXC moduleAA25
Miniature circuit-breakerAA25-FC1
Terminal block, power supplyAA25-X1
Designations according to standard EN 81346-2.
1. The number of climate systems that can be installed varies depending on the product and software version. To check which software version is
available for your product, visit nibeuplink.com.
2. This is only used when connecting to NIBE F370 or F470.
5ECS 40/ECS 41 S-series | GB
S
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