Zehnder Rittling ComfoFond-L, Installation Manual

   EN

   3

2. 

Transport and unpacking

Take care when transporting and unpacking the 
Comfofond-L.

   Make sure the packing material is disposed 
of in an environmentally friendly manner. 

Checking delivery

Contact your supplier immediately in case of damage 
or an incomplete
delivery. 
The delivery must include:

Comfofond-L 350:

•    Comfofond-L; Check the identification plate to 

ensure that it is the required type;

•   Filter with separate filter handle;
•   Condensation drain connection;
•   Wall bracket;
•   Insulation belt;
•   Manual.

Comfofond-L 550:

•    Comfofond-L; Check the identification plate to 

ensure that it is the required type;

•   Filter with separate filter handle;
•   Condensation drain connection;
•   Wall bracket;
•   2 x 90º connection bends.

 The connection bends are on the inside of 
the Comfofond-L. Therefore the front of the 
Comfofond-L must be removed to check the 
delivery.

•   Plastic sleeve joint;
•   Metal sleeve joint;
•   Manual.

The Comfofond-L is supplied in the following types:

Type:

Comfofond-L 350 L

Comfofond-L 350 R

Comfofond-L 550 L

Comfofond-L 550 R

Meaning of the suffices:
•  Comfofond-L = Fluid geothermal exchanger.
•  350 = Suitable for a ComfoAir 350 Luxe.
•  550 = Suitable for a ComfoAir 550 Luxe.
•   L = Concerns a left-side model for a left-side 

ComfoAir.

•   R = Concerns a right-side model for a right-side 

ComfoAir.

3.   Installation conditions and 

dimensional sketches

In order to determine whether the Comfofond-L can 
be installed in a certain area, the following aspects 
must be taken into account: 
•   The Comfofond-L must be installed according 

to the general and locally applicable safety 
and installation regulations of power and water 
companies, as well as the instructions in this 
manual;

•   The system must be fitted to allow sufficient 

room around the Comfofond-L and ComfoAir 
Luxe for the air connections and brine loops as 
well as for carrying out maintenance activities; 

•   The room must offer the following provisions:
 

-  Air duct connections.

-  230V electrical connection.

-  Provisions for the condensation drain.

-  Brine loops for the pipe system.

•   The Comfofond-L must be installed in a frost-free 

space; 

  The fluid in the system may not freeze. 
Irreversible damage will be caused to the 
machine if the fluid freezes.

•   The condensation must be drained off frost-free, 

at a gradient, using a siphon;

•   We recommend that the Comfofond-L is not 

installed in spaces with a higher average 
humidity (such as a bathroom or toilet). This is 
to prevent the formation of condensation on the 
outside of the Comfofond-L.

•   An outer valve is a requirement if the system is 

used in areas where the temperature is lower 
than -15ºC. This valve must shut off the supply 
air in the event of a power failure. The system 
can be damaged during a power failure at 
temperatures lower than -15ºC, this is why an 
outer valve is a requirement.