Airwell In Residential Air Conditioning User Guide
- June 9, 2024
- Airwell
Table of Contents
Airwell In Residential Air Conditioning User Guide
PRODUCT PART
INTRODUCTION
This practical guide is intended for anyone who has to select AIRWELL spare parts. You will find a quick presentation of the basic principles of cold production in order to understand the role of the main parts of an installation. Then, you will find explanations on the selection of spare parts for the Airwell brand. Enjoy your reading
BASIC PRINCIPLES
COOLING AND ENERGY
Cold is not created. To make cold, energy must be removed. As a matter of
principle, it is assumed that the energy movement is always from hot to cold.
The role of a refrigeration system such as air conditioning is therefore to
transfer energy.
In the summer, the room is heated by indoor and outdoor heat. To cool the room, energy must be removed.
THE REFRIGERATION SYSTEM
As seen before, producing cold means removing energy from an environment. To make cold, we use the thermodynamic properties of a fluid. As the fluid evaporates, it absorbs heat. The energy is absorbed at the evaporator when the liquid fluid changes to vapour form. The refrigerant is circulated through the compressor where its pressure increases. The pressure increases from low pressure to high pressure. The energy absorbed at the evaporator is released at the condenser. The fluid changes to a liquid state, releasing heat. Then, in the expansion valve, the fluid changes from high pressure to low pressure. Low pressure liquid arrives in the evaporator where it changes state and so on. In residential air conditioning (summer operation in «cold» mode), the evaporator is in the indoor unit. The compressor, condenser and expansion valve are located in the outdoor unit.
Concept of a reversible system
Here is an installation in summer (Cooling mode):
In winter, the aim is to heat the room. Therefore, it is sufficient to reverse the refrigeration cycle to provide energy to the air in the room. Overall, we want to obtain this:
However, to reverse the direction of flow without moving the equipment, a component called a 4-way valve or cycle reversal valve is used.
COOLING AND DRY MODE
HEATING MODE
IDENTIFICATION OF AIRWELL EQUIPMENT
DESIGNATION | ILLUSTRATION | NOTES |
---|
Floor Ceiling
| |
Can be placed on the ceiling or on a wall.
Cassette 600×600
| | Placed on the ceiling, usually when there is a there is a false ceiling
Cassette 900×900
| |
Ducted| | This unit is ducted. It is concealed and the supply air passes
through a grill into the treated room
High Wall| | Widespread and wall-mounted unit
Window
| |
Used for small rooms. This unit is placed in the middle of a wall
Portable (monoblock)
| |
A unit that has the advantage of being easily used without installation by a profes- sional.
Portable (bi-split)
| |
Similar to the previous unit but in two parts
Rooftop
| |
Unit for large rooms that is placed on the roof. It is ducted.
Air Cabinet
| |
Unit used in tertiary and commercial pre- mises to treat a large volume
---|---|---
Water-cooled console (heat pump)
| |
A water-based system that is recom- mended when the installation of an exter- nal unit is not possible.
Water-cooled condensing unit (Heat pump)
| |
Same as the previous unit but in two parts
Heat Pump
| | | | Allows the house to be heated by a water circuit and make hot water (*In the case of an Air-Water heat pump)
Thermodynamic Water Heater
| |
Used for the production of domestic hot water (DHW) production
Thermodynamic dual-flow CMV
| | CMV is the acronym for Mechanical Controlled Ventilation. This system allows stale air to be evacuated from the home and outside air to enter. The advantage of a thermodynamic system is that it recovers energy from the outgoing air and transfers it to the incoming air
VRF
| |
VRF stands for Débit de Réfrigérant Va- riable. It can also be called VRF (Variable Refrigerant Flow) or VRV. This system is used in tertiary sector buildings such as for example an office building where a lot of where high power is required.
ACCESSING THE INTERFACE
The spare parts selection interface is accessible on the website: https://[www .airwell-pro.com](http://www.airwell-pro.com)/log-in/ If you do not have an account and you are a professional, you can create one by filling in the online form. If you have any difficulties in creating an account, you can write to the marketing team via the email address: mkg@airwell.com
Once you are logged in, click on OUR DOCUMENTATION > Select spare parts
THE SPARE PARTS INTERFACE: SP CATALOGUE
USING THE SPARE PARTS INTERFACE
At Airwell we call this interface: SP Catalog. Having a product code is
essential for consulting the associated exploded view. An Airwell product code
usually starts with 7SP, 7OG or 7HP and an Electra product code usually starts
with ESP or EOG. In the Product or Part Search tab, enter the product code in
Material Number as follows:
After double-clicking on the second line (highlighted in blue), you can access the exploded view
DESCRIPTION OF THE INTERFACE
At Airwell all part numbers start with 1PR followed by 6 digits. If the part you are looking for does not have a code starting with 1PR, consider it unavailable and not replaced. By exception some codes correspond to accessories such as remote controls. The accessory codes start with 7AC.
The acronyms to know are:
- CR : Cancel and Replaced, meaning that the original part no longer exists but has been replaced by another reference.
- CNR : Cancel not Replaced means that the original part is unavailable and is not replaced.
- B-C : B-C: Buy and Cancel means that it is an end of stock part that will not be renewed. Then, this part will be classified as CNR.
To facilitate your search, you can sort the list of parts alphabetically by clicking on Description
COMMON PARTS
TEMPERATURE SENSORS
As Airwell units evolve and have different technologies, there are different
sensor names. The equivalents are as follows:
| **LETTER MARKING| ****NUMBER MARKING| TDF AND TNF
THERMODYNAMIC WATER HEATER
---|---|---|---
Indoor room sensor| RAT| T1|
Indoor heat exchanger sensor| ICT| T2|
Gas return sensor| RGT| T2B|
Liquid return sensor| RLT| |
Outdoor exchanger sensor| OCT| T3| T3
Outdoor room sensor| OAT| T4| T4
Compressor discharge probe| CTT| T5| Tp
Compressor suction probe| SUCT| |
Return probe| | | Th
Top of tank probe| | | T5U
Bottom probe**| | | T5L
General diagram of sensor locations on a refrigeration diagram:
Specific case of sensors on the MFL range (outdoor unit):
- OIL1 : Oil sensor N°1
- OIL2 : Oil sensor N°2
- AIR TEMP : Outdoor temperature sensor
- DISH1 : Compressor discharge sensor N°1
- DISH2 : Compressor discharge sensor N°2
- SCT : Compressor suction probe
- EXL1 : Liquid probe N°1
- EXL2 : Liquid probe N°2
- EXG1 : Gas probe N°1
- EXG2 : Gas probe N°2
Example EXG1 sensor on MFL 100 / R410 7SP141013
And on indoor units of the MFL range (NKFL, NK2FL, NWFL, NDLP, NDHP, NWFL), the probes are:
- TH1 : Indoor room sensor
- TH2 : E1 exchanger sensor
- TH3 : E2 exchanger sensor
- TH4 : E3 exchanger sensor
- TH5 : Air outlet sensor
ELECTRONIC CARDS
On monosplits (one unit connected to one indoor unit), there are very often
«all-in-one» electronic boards. When the power input is higher like in
multisplits (a single outdoor unit connected to 2, 3, 4 or 5 indoor units)
there are several electronic boards.
Let’s take the YDZC group as an example:
This group contains a main board 1PR031746 and an inverter board (whose role is to manage the motor speed) 1PR030476.
Specific case of electronic boards on the MFL range (outdoor unit)
The MFL model groups are old (released around 2008), they have unusual board
names compared to other units. On an MFL140R-3 7SP14R029, there are 3
electronic boards:
- The FIL board / filter board which protects the other boards by filtering the power supply.
- The CR board / main board which centralises all the functions
- The HIC board / inverter board which manages the speed of the inverter compressor
ADDITIONAL INFORMATION
ABBREVIATIONS AND ACRONYMS
Refrigeration professionals including AIRWELL often use abbreviations and
acronyms. Care must be taken not to confuse an acronym with a unit type.
Example:
SX : AIRWELL Residential floor ceiling
CTA : Air Handling Unit AHU (this is not a reference)
List of general abbreviations and acronyms in Refrigeration and Air Conditioning
Comp | Compressor |
---|---|
CTA | Air Handling Unit (AHU) |
PAC | Heat pump |
EEV | Electronic expansion valve |
DRV=VRF=VRV | Variable Refrigerant Flow |
UI / IDU | Unité Intérieure / Indoor Unit |
UE / ODU | Unité Extérieure / Outdoor Unit |
BP | Low Pressure |
HP | High Pressure |
ECS/DHW | Eau Chaude Sanitaire / Domestic Hot Water |
IPM | Inverter Power Module |
List of abbreviations and acronyms used at Airwell
DS| Follow-up file. This is a file number used by the After Sales
Service
---|---
BL| Bill of Lading
ODS| Service Order (used by the intervention department)
FG| Finish Good
WFG| Warranty on finished goods
SB| Service Bulletin: Part or handling specific notice, an update
SM| Service Manual
IOM| Installation and Operation Manual
ASM| Area Sales Manager (for new products and accessories)
These lists are non-exhaustive.
FREQUENTLY ASKED QUESTIONS
The customer asks me for a part that I don’t know or I’m not sure what to
do between two markers. What should I do?
The technician is always in the best position to determine the correct
reference. In case of doubt, don’t hesitate to send him the exploded view so
that he can find the part he wants himself.
How do I know if an old Airwell France product is managed by Systemair or
by Airwell Group?
Start by checking in this list whether it is a product managed by Systemair.
Systemair is the new owner of Airwell France since 2014.
RESIDENTIAL HEAT PUMPS | CWP-V |
---|---|
WATER CHILLERS CONSENSATION AR | MQL / AQL / AQVSL / AQVL / AQCL |
/ VLS / AQTL / SLS / CWP RC/ SWR / RWR
INDUSTRIAL HEAT PUMPS| MQH / AQH / AQVSH / AQVH / AQCH / VLH / AQTH /
SLH / CWP-HP
AIR CONDITIONING CABINETS| X AO Systemair / X AR Systemair / UC
Systemair / CW / CD / MD
ICE WATER TERMINALS| AWC / AWN / AHC / AHN / VHC / VH / VPF / VPX / VPU
/ VH2N / WKW / VHF / KCO / HAWAIR KOG / XLMOG / WSWOG / DKWOG
WATER LOOP HEAT PUMPS| HRW / CWAR / EFTYS
ROOFTOP| HA / HAN / ROOFTAIR (RT-RTH) / ROOTECH (RTCL/RTCH)
CONDENSING UNITS| CDN / AQC / AQVC / VLC / AQTC
WATER-COOLED CONDENSING UNITS| CWPCO / RWC / SWS
- If the product appears in this list, you can redirect the request to Systemair by phone at 08.91.70.04.07, by fax at 02.32.32.50.33 or by email at: parts.france@systemair.fr
- If the product does not appear in this list or if you have any doubts, please contact Airwell Group by phone at 01.76.21.92.84 or by e-mail at service@airwell.com
What is the difference between a condenser and a capacitor?
- A condenser is a heat exchanger.
- A condenser is an electrical part connected to a motor.
Is it possible to order a part that does not have a 1PR reference but a sequence of of numbers?
- No. If the part number is not a code starting with 1PR or an accessory code starting with 7AC, this part is unavailable.
- These are old references kept for archive and not used nowadays.
Where can I find documentation (product sheet, installation manual,
technical manual)?
On the Airwell documentation library via this link:
http://lh.airwellres.com/
I have read the whole manual, I have searched the whole exploded view but I
cannot find the spare part. What should I do?
You can call us at 01.76.21.82.95. The technical team will answer you with a
smile!
TEL: +33 1 76 21 82 95
Monday to friday from 8am to 6pm