Zehnder Rittling ComfoClime 24 Instruction manual

1 - EN
Quick User Guide ComfoClime 24 and ComfoClime 36
For detailed information please refer to the INSTALLER MANUAL.
The installation manual as well as the assistance manual
are available on www.zehndergroup.com
Safety instructions
The unit can be used only after a proper installation in conformity with instructions and directives
given in the installer manual and local regulations.
The unit must be lifted or handled keeping into consideration and respecting the local safety
regulations.
Do not open the case. The installer will verify that all the potentially dangerous components will be
protected by the frame.
The unit can’t be managed by a child younger than 8, by people with limited physical ability, by
people with mental health problems, by unskilled or incompetent people and anyway people
allowed to handle the unit must be properly educated in terms of safety and risk acknowledgement.
Children cannot play with the unit.
Children are not allowed to provide cleaning and maintenance.
In case a flaw or a malfunctioning are suspected, please follow these instructions:
Never open the case. Maintenance interventions must be operated exclusively by an authorized expert;
The unit contains refrigerant gas and it is designed to avoid gas leakages.
If a weird smell were felt:
■do not touch the unit at least for one hour;
■keep windows and doors opened in the room where the unit is placed;
■contact the installer or Zehnder assistance service for any request.
Prior to contact the installer and Zehnder assistance service check the User Manual at the following link www.
zehndergroup.com.

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Installer quick guide
1 Package content
In the package you’ll find:
■1 ComfoClime 24 or ComfoClime 36;
■1 cabled power supply plug;
■4 gaskets for EPP components;
■1 condensation drain cap;
■2 EPP standoffs;
■1 white plastic cover;
■1 quick guide;
■1 ComfoNet cable;
■1 kit for wall fastening (with screws).
2 Dimensions
CC24 - Ø 175 mm
CC36 - Ø 215 mm
CC24 - Ø 175 mm
CC36 - Ø 215 mm
185 mm
655 mm
384 mm
720 mm
580 mm
condensation
drain Ø 32 mm
condensation
drain Ø 32 mm

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3 Unpacking and placement: precautions and safety advices
This step must be followed by a qualified installer. Prepare the top part of ComfoAir Q
placing the two EPP standoffs and above them inserting the 4 gaskets on the ducts end.
Unpack carefully the unit placing it on top of the ComfoAir Q without damaging the gaskets.
3.1 Safety instructions
Always respect safety regulations, precautions and the instructions provided in this document. In
case of lack of respect of those there is the risk of personal injuries or serious damage of the unit.
Never open the case. The installer will verify that all the potentially dangerous components will be
protected behind the frame.
Installation, commissioning, maintenance must be done by a qualified technician. Hazardous or
unaware operation can cause severe damages to people or the unit or wrong functioning of the
ventilation system.
Do not modify nor force the unit or its features and specifications illustrated in this document.
Modifications can cause fatal damages to the unit and personal injuries.
Do not disconnect the unit from the electric power if not conversely specified in the manuals. This
could bring to problems like undesired humidity accumulation and even to mould creation.
Remember to clean every grid or valve at least every two years.
All these precautions will permit to have always a comfortable environment and a high air quality and they will contribute
to preserve the unit from dirt, pollution and contamination.
4 Air duct connections
Legend
ACRONYM MEANING
RRight layout
LLeft layout
ODA Outdoor air intake
SUP Indoor supply air
ETA Indoor air extraction
EHA Indoor air exhaust
Consider the following schemes to connect the ducts:
ETA EHA
SUP ODA
R
ODA SUP
EHA ETA
L

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Zehnder Quick User Guide_REV00-05-2022_Subject to change
■Left (multicolour LED):
■RED permanent: heating mode.
■BLU permanent: cooling mode.
■YELLOW blinking: an error occurred.
(see notifications on the app)
■Right (GREEN):
■Fast blinking: ComfoNet BUS off.
■Slow blinking: ComfoNet is connecting.
■Permanent ON: ComfoNet properly
connected and working.
5. Connection and commissioning: check and test - set-up (installer)
In case of retrofitting installation, is strongly suggested that the ComfoAir Q has the latest firmware with a
minimum of release 1.10 otherwise proceed with a proper upgrade (see ComfoAir Q manual).
To initialize the product, proceed as follows:
STEP ACTION
1Place the ComfoAir Q in its designed place.
2Install the ComfoClime as explained in the ComfoClime installer manual.
3Connect the main ducts to the upper part of the ComfoClime.
4Connect the condensation drain to the drain network through an external wet siphon (10cm guard), choosing
the preferred side (see ComfoClime installer manual).
5Connect the unit to the power supply: firstly the ComfoAir Q and secondly the ComfoClime. They switch on
automatically.
6Perform the ComfoAir Q commissioning following the instructions on its display
(See ComfoAir Q installer manual).
6. Normal maintenance and cleaning
It’s strongly recommended to perform a proper maintenance and cleaning, following the messages appearing in the
CAQ display (filters replacement); an accurate cleaning must be performed at least every 2 years by Zehnder service
personnel.
It’s mandatory that only authorized personnel can operate on the internal components of the unit.
7. Warranty
The product is covered by European warranty for a period of 2 years from the date of installation and test.
8. Front LEDs meaning
In the front panel there are two function LEDs:
9. Troubleshooting
In case of problems or malfunctioning it is recommended not to intervene personally but contact the
authorized service company or Zehnder hotline.
Prior to contact the service assistance check the User Manual.
Zehnder Group IT
Via G. di Vittorio 6
41100 Campogalliano (MO), Italy