Zehnder Rittling ComfoD 180 User guide

Cooling Fresh Air Clean AirHeating
Ventilation system
ComfoD 180 and ComfoAir 180
Manual for the installer
ComfoD / Basic ComfoAir / Luxe

2 - EN
Foreword
Read this document carefully before use.
This document provides all the information required
for safe and optimal installation of the ComfoD 180
and ComfoAir180. In this document they will be
referred to as “the unit”.
The unit is subject to continuous development and
improvement. As a result, the unit may slightly differ
from the descriptions.
The following pictograms are used in this
document:
Point of attention.
Risk of:
- damage to the device;
- performance of the device is compromised if
instructions are not observed carefully.
Risk of personal injury for the user.
Maintenance
Questions
Please contact the supplier if you have any questions
or would like to order a new document or new filters.
The contact details of the main supplier(s) can be
found in the user manual.
The following information can be found in the
User manual:
Information
General information about the ventilation system.
Operating devices available for the unit.
Warranty and liability conditions.
EEC declaration of conformity.
How to maintain the filters of the unit.
How to maintain the valves of the ventilation system.
The following information can be found in the
Service manual:
Information
How to commission the unit
How to use P-menus.
How to maintain the unit
How to solve errors
All rights reserved.
This documentation 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 document. In case of disputes the English version of
these instructions will be binding.

EN- 3
Table of Contents
Foreword ...................................................................................................................................................................2
1 Safety ........................................................................................................................................................................5
2 Installation conditions ............................................................................................................................................. 5
3 Transport and unpacking.........................................................................................................................................5
4 Technical specifications ..........................................................................................................................................6
4.1 Configuration unit................................................................................................................................................7
4.2 Dimension sketch ................................................................................................................................................8
4.3 Wiring diagram .................................................................................................................................................. 10
5 Installation .............................................................................................................................................................. 12
5.1 Rework Right to Left version ............................................................................................................................. 12
5.2 Wall mounting, standard ................................................................................................................................... 13
5.3 Wall mounting, restricted height........................................................................................................................ 14
5.4 Wall mounting, restricted height and width ....................................................................................................... 15
5.5 Air ducts............................................................................................................................................................ 16
5.5.1 Top air ducts ........................................................................................................................................... 16
5.5.2 Bottom supply air duct............................................................................................................................ 16
5.6 Condensation drain ........................................................................................................................................... 18
5.6.1 U- ben d .................................................................................................................................................... 18
5.6.2 Dry syphon.............................................................................................................................................. 18
5.7 Valves and/or grilles .......................................................................................................................................... 18
5.8 Extractor hood (optional)................................................................................................................................... 19
5.9 External filter (optional)...................................................................................................................................... 19
5.10 Unregulated sub-soil heat exchanger (optional) ................................................................................................ 19

4 - EN

EN- 5
1 Safety
Always follow the safety regulations, warnings,
comments and instructions given in this document.
Personal injury or damage to the unit can arise
from non-compliance with the safety regulations,
warnings, comments and instructions in this
document.
■Only a certified engineer may fit, connect,
commission and maintain the unit unless
otherwise indicated in this document;
■Installation of the unit must be carried out
in accordance with the general and locally
applicable construction, safety and installation
instructions of the local council, electricity and
water boards or other agencies;
■The unit is only suitable for a 230V 50/60Hz
connection;
■The unit is only suitable for residential use and
not for industrial use, such as swimming pools or
saunas;
■Ensure while working on the unit that the
power has been controllered off and cannot be
accidentally controllered back on;
■Always take ESD-inhibiting measures when
dealing with electronics, such as wearing an
antistatic wristband;
■After using the user manual, place it back on the
unit;
■It is prohibited to modify the unit or the
specifications stated in this document;
■The unit cannot be opened without using tools;
■It must not be possible to touch the fans by hand,
which is why ducts of at least 900 mm must be
connected to the unit.
2 Installation conditions
In order to determine whether the unit can be
installed in a certain area, the following aspects
must be taken into account:
■The system must be fitted to allow sufficient
room around the unit for the air duct connections,
condensation drain as well as for carrying out
maintenance activities;
■The unit must be installed in a frost-free space;
■We do not recommend installing the unit in areas
with a higher than average humidity (such as
bathroom or wc). This will prevent condensation
on the outside of the unit;
■The room must offer the following provisions:
- Air duct connections;
- Electrical power connection;
- Wiring for a wired control controller;
- Provisions for the condensation drain.
3 Transport and unpacking
Take the necessary precautions when
transporting and unpacking the unit and
make sure the packing material is disposed
of in an environmentally friendly manner.
Checking the delivery
Contact your supplier immediately in case of damage
or an incomplete delivery. The delivery should at
least include:
■The unit: check the identification plate to ensure
that it is the required type;
■2 Mounting brackets;
■6 Spacers;
■Service/ComfoSense connector;
■Documentation.
Meaning of the suffixes found on the
identification plate
■ComfoAir = Product family name.
■ComfoD = The unit has a display installed as
default.
■180 = Product type name
(Air volumes in m3/h)
■Basic = The unit has a display installed as
default.
■Luxe = The unit has no display installed as
default.
■Enthalpie = The unit has a enthalpy exchanger
installed as default.
■ERV = The unit has a enthalpy exchanger
installed as default.
■PH = The unit has a pre heater installed as
default.
■V = The unit has a pre heater installed as
default.

6 - EN
4 Technical specifications
Position Ventilation capacity Power Current Silencer
housing
Sound power1
Supply fan
Sound power1
Exhaust fan
15% 28 m3/h at 3 Pa 7 W 0.08 A 27. 2 d B ( A ) 39 dB(A) 38 dB(A)
20% 37 m3/h at 6 Pa 8 W 0.09 A 27. 8 d B ( A ) 40 dB(A) 39 dB(A)
30% 55 m3/h at 14 Pa 10 W 0.10 A 29.8 dB(A) 42 dB(A) 40 dB(A)
40% 76 m3/h at 27 Pa 13 W 0.14 A 31.9 dB(A) 45 dB(A) 41 dB(A)
50% 97 m3/h at 44 Pa 18 W 0.20 A 34.7 dB(A) 43 dB(A) 43 dB(A)
60% 118 m 3/h at 64 Pa 26 W 0.27 A 37. 4 d B ( A ) 53 dB(A) 45 dB(A)
70% 141 m3/h at 92 Pa 37 W 0.37 A 40.2 dB(A) 57 dB(A) 48 dB(A)
80% 160 m3/h at 118 Pa 50 W 0.48 A 42.9 dB(A) 59 dB(A) 50 dB(A)
90% 178 m3/h at 147 Pa 66 W 0.61 A 44.7 dB(A) 62 dB(A) 52 dB(A)
100% 195 m3/h at 175 Pa 85 W 0.75 A 45.8 dB(A) 63 dB(A) 53 dB(A)
Default settings air volume
Absent Setting (nL / HL) 15% 15%
Low Setting (nL / HL) 35% 40%
Medium Setting (nL / HL) 50% 70%
High Setting (nL / HL) 70% 90%
Connection data
Power Supply 230V±10%, single phase, 50/60Hz
cos f20.38 – 0.49
Power Maximal 1250 W 5.77 A
Power Pre heater3250 W 4.99 A
General specifications
Material Housing Coated Sheet Steel
Material Interior EPP and ABS
Material Heat Exchanger Polystyrene
Material Enthalpy Exchanger Polyethylene-polyether-copolymer
Thermal Yield2up to 89%
Weight 24kg
Humidity Maximal 72% at 20°C
Ambient temperature (minimum / maximum) 0°C 40°C
IP classification IP40
Filter class (outdoor air / return air) G4 or F7 G4
Type speed control 4 speed
Connecting air ducting Sleeve
Nominal diameter air ducting (top / bottom) rectangular 125
Temperature sensors 10k NTC KTY 81-210
Temperature Resistance MIN. Resistance MID. Resistance MAX.
10 ºC 19,570 kΩ 19,904 kΩ 20,242 kΩ
15 ºC 15.485 kΩ 15,712 kΩ 15,941 kΩ
18 ºC 13,502 kΩ 13,681 kΩ 13,861 kΩ
19 ºC 12,906 kΩ 13,071 kΩ 13,237 kΩ
20 ºC 12,339 kΩ 12,491 kΩ 12,644 kΩ
21 ºC 11,801 kΩ 11,941 k Ω 12,082 kΩ
22 ºC 11,291 kΩ 11,420 kΩ 11,550 kΩ
25 ºC 9,900 kΩ 10,000 kΩ 10,100 kΩ
30 ºC 7, 9 59 k Ω 8,057 kΩ 8,155 kΩ
1The Lw noise power level is measured at 0m
2According to standard EN13141-7
3At -15°C and 180m³/h

EN- 7
4.1 Configuration unit
Position Part
AExternal casing of coated sheetsteel
BInterior of high-quality, expanded polypropylene EPP and ABS
C5 connections for the air ducts
D2 filters for air purification
E2 energy-efficient DC motors with high-efficient fan
FHE (High efficient) heat exchanger or enthalpy exchanger (standard in unit version “Enthalpie” and “ERV”)
GDisplay to read data, and for programming procedures (not present in the unit version “Luxe”)
HElectronics box with the Control PCB of the unit for all the standard connections
IIdentification plate detailing information on the unit (not visible)
JCondensation drain to drain the condensation of the warm return air
KSticker detailing the air connections (not visible)
L2 Service connectors for the ComfoSense or PC
The service connectors cannot be used at the same time
M4 Filter caps
NPre heater (standard in unit version “V” and “PH”)
B
G
A
C
CC
D D N
E
F
G
H
J
K
LI
L
M
M

8 - EN
4.2 Dimension sketch
558
65525 680
115
60
25
022
25
30 30
280 109
12
299
20 C
i
125
87
86 194
140140
144

8 - EN EN- 9
Legend
Code Description
ODA Outdoor air
SUP Supply air
ETA Extract air
EHA Exhaust air
CCondensation drain
655
200
55868 44
680
128 118
100
323347
10
333
150
128 104
SUP
ODA
ETA
EHA
SUP

10 - EN
4.3 Wiring diagram
Legend Colour code
Code Colour Code Colour Code Colour
(N) B Blue (L1) G Grey WWhite
(PE) G/Y Green/ Yellow (L2) Bl Black YYellow
(L3) Br Brown RRed
Legend
Code Decription Code Decription
PH Pre heater T1 NTC-Sensor Outdoor air
M1 Exhaust motor T2 NTC-Sensor Supply air
M2 Supply motor T3 NTC-Sensor Return air
DISPLAY Display T4 NTC-Sensor Exhaust air
BYP Bypass valve BS Bathroom controller
LED n/a SERV Service/ComfoSense connector
Control PCB