Zehnder Rittling ComfoClime 24 User manual

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ComfoClime 24
ComfoClime 36
Service manual
■Decorative radiators ■Comfortable indoor ventilation ■Heating and cooling ceiling systems ■Clean air solutions

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All rights reserved.
This manual has been compiled with the utmost care. The publisher cannot be held liable for any damage caused as a
result of missing or incorrect information in this manual.
Table of Contents
Preface .........................................................................................................................................................................3
1 Introduction ................................................................................................................................................................3
2 ComfoClime unit internal access ..................................................................................................................................4
2.1 Access to the LEFT front coil..............................................................................................................................4
2.2 Access to the LEFT front condensation tray ........................................................................................................5
2.3 Access to the RIGHT back coil (siphon and condensation tray) ............................................................................6
2.4 Access to the RIGHT back condensation tray......................................................................................................7
2.5 Replacement of the actuators ............................................................................................................................8

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Preface
IMPORTANT!
Carefully read this manual before use.
This manual provides all the information required for safe and optimal installation and maintenance of the ComfoClime
24 or ComfoClime 36. It is also intended as a reference for servicing, so that this can be carried out in a responsible
manner. The unit is subject to continuous development and improvement. As a result, the ComfoClime 24 or
ComfoClime 36 may slightly differ from the descriptions.
NOTE : this manual has been compiled with the utmost care. However, no rights can be derived
from it. In addition, we at all times reserve the right to change the contents of this manual, without
prior notice.
The following pictograms are used in this document:
Symbol Meaning
Point of attention / important informations.
Risk of compromised performance or damage to the ventilation system / risk of personal injury.
Consult the manual before using/operate the equipment.
1 Introduction
Zehnder ComfoClime unit can be configured as SX or DX version, via software, during the commissioning of the system.
Zehnder Group IT
Via G. di Vittorio 6
41100 Campogalliano (MO), Italy

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2 ComfoClime unit internal access
2.1 Access to the LEFT front coil
Always comply with the safety regulations, warnings, comments and instructions given in this
document. Failure to comply with the safety regulations, instructions, warnings and comments
may lead to personal injury or damage to the unit.
In order to proceed with access to the LEFT front coil, follow the steps as described below:
Step Action
1
Remove the ComfoClime black top cover
Aby unhooking the 4 hooks and pulling
back using the 2 protruding corners.
A
2
Remove the white frontal panel B of
the ComfoClime, lifting it a little then
extracting the lower side. B
3Remove the front metal sheet C
unscrewing all the screws D.
D
C

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Step Action
4
The coil Eis visible on the left side
(higlighted in red);
it is possible to clean it using a vacuum
cleaner or a compressor taking care
of closing the below intake of the
ComfoAir Q to avoid the dirt to fall
down into the ComfoAir Q (see after for
access to condensation tray).
E
CAUTION!
The supplier shall not be held liable for any damage, to things or people, caused by accidents due
to a failure to comply with the instructions provided in this manual and in the following chapters.
2.2 Access to the LEFT front condensation tray
Always comply with the safety regulations, warnings, comments and instructions given in this
document. Failure to comply with the safety regulations, instructions, warnings and comments
may lead to personal injury or damage to the unit.
In order to proceed with access to the LEFT front condensation tray, follow the steps as described below:
Step Action
1Please follow the previous sequence described in the "Paragraph 2.1 - Step 1 to 3", to get access to the
internal components.
2Unscrew the two metallic Aplates to
see the bottom of the condensation tray.
A

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Step Action
3
Unscrew the two screws Bthat lock the
condensation tray C then pull it gently
toward you rotating it slightly.
B
C
4It is possible to replace the internal siphon extracting gently the rubber hose ends.
CAUTION!
The supplier shall not be held liable for any damage, to things or people, caused by accidents due
to a failure to comply with the instructions provided in this manual and in the following chapters.
2.3 Access to the RIGHT back coil (siphon and condensation tray)
Always comply with the safety regulations, warnings, comments and instructions given in this
document. Failure to comply with the safety regulations, instructions, warnings and comments
may lead to personal injury or damage to the unit.
In order to proceed with access to the RIGHT back coil (siphon and condensation tray), follow the steps as described
below:
Step Action
1Please follow the previous sequence described in the "Paragraph 2.1 - Step 1 to 3", to get access to the
internal components.
2
The coil is not visible behind the metallic
wall on the right side of the unit. To get
access to the right back coil, please
unscrew the metallic sheet A.A

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Step Action
3
The coil and the condensation Btray are
visible and it’s possible to clean the coil
with a vacuum cleaner or a brush taking
care of closing the below intake of the
ComfoAir Q to avoid the dirt to fall down
into the ComfoAir Q.
B
CAUTION!
The supplier shall not be held liable for any damage, to things or people, caused by accidents due
to a failure to comply with the instructions provided in this manual and in the following chapters.
2.4 Access to the RIGHT back condensation tray
Always comply with the safety regulations, warnings, comments and instructions given in this
document. Failure to comply with the safety regulations, instructions, warnings and comments
may lead to personal injury or damage to the unit.
In order to proceed with access to the RIGHT back condensation tray, follow the steps as described below:
Step Action
1Please follow the previous sequence described in the "Paragraph 2.1 - Step 1 to 3", to get access to the
internal components.
2Please follow the previous sequence described in the "Paragraph 2.3 - Step 1 to 3", to get access to the
internal components.
3
It is possible to replace the internal
siphon extracting gently the rubber
hose ends A.
A

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Step Action
4
Unscrew the two screws Bthat lock
the condensation tray then pull it gently
toward you rotating it slightly.
B
CAUTION!
The supplier shall not be held liable for any damage, to things or people, caused by accidents due
to a failure to comply with the instructions provided in this manual and in the following chapters.
2.5 Replacement of the actuators
Always comply with the safety regulations, warnings, comments and instructions given in this
document. Failure to comply with the safety regulations, instructions, warnings and comments
may lead to personal injury or damage to the unit.
In order to proceed with the Replacement of the actuators, follow the steps as described below:
Step Action
1Please follow the previous sequence described in the "Paragraph 2.1 - Step 1 to 3", to get access to the
internal components.
2
Individuating the actuators A placed
in the central bottom area, before the
compressor.
The actuator on the left
controls the flap on the
left ; the one on the right
commands the flap through a
leverage.
A

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Step Action
3Unplug the two connectors Bfrom the
upper part of the actuator.
B
4Unscrew the two screws C that hold it
attached to the frame.
C
CAUTION!
The supplier shall not be held liable for any damage, to things or people, caused by accidents due
to a failure to comply with the instructions provided in this manual and in the following chapters.
C

Zehnder Group IT
Via G. di Vittorio 6
41100 Campogalliano (MO), Italy
Zehnder Service Manual_REV00-12-2021_Subject to change