envirovent QURO Decentralised Mechanical Extract Fan User Guide
- September 19, 2024
- envirovent
Table of Contents
QURO Decentralised Mechanical Extract Fan
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Specifications
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Product Name: QURO Decentralised Mechanical Extract Fan
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Operating Voltage: 230V AC, 50/60Hz
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Operating Modes: Continuous, Trickle, Boost
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Airflow Rates: See Table of Airflows below
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Installation: Ceiling or wall mounting with outlet directly
outside or into a dedicated duct -
Display: 7 segment display with 3 digits
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Control: Keypad with Enter, + and – keys
Product Usage Instructions
Installation
Before installing, ensure the power is switched off at the
mains. Mount the fan on the ceiling or wall with the outlet outside
or into a dedicated duct.
Operating Modes
The QURO fan has three operating modes: Trickle (low speed),
Boost (high speed), and Timer mode for specific durations.
Setting Up Operating Modes
- Press Enter to activate the display.
- Use + and – keys to cycle through the menu.
- Select an option and press Enter to confirm.
- To change values, use + or – keys and press Enter to
confirm.
Table of Airflows
| Airflow (l/s) | Airflow (m3/h) |
|---|---|
| 5 | 18 |
Operating Modes and Menus
The display menu is activated by pressing Enter and deactivated
after 5 seconds. Trickle mode is the lowest speed, and boost mode
is the highest speed.
FAQ
Q: Can children operate the fan?
A: Children should not operate the device unsupervised. Ensure
they are supervised or trained to use the device safely.
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QURO
Decentralised Mechanical Extract Fan
2 1
Fig. 1
3
6 4 5
4 9
Fig. 2
5
7
8 3
Fig. 3 4
Minimum Installation Distances and Orientations X > 5 cm / 2 inch
QURO QRST (Timer) and QRHT (Relative Humidity Sensor and Timer) models:
X
X
X
X
X
XX
X
X
QURO QRHTP (Relative Humidity Sensor, Timer and Pullcord) model:
X
X
X
X
Fig. 4 5
Fig.2 Fig.2
Fig. 5 6
QURO QRST model
a) 230V N 50/60Hz L
b) 230V N 50/60Hz L
Fig. 6
QURO
QRHT model
230V N 50/60Hz L
- a) 230V N 50/60Hz L b) 230V N 50/60Hz L
Fig. 7 7
QURO
QRHTP model
230V N 50/60Hz L
- a) 230V N 50/60Hz L b) 230V N 50/60Hz L
Fig. 7
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This instruction manual contains important information and must be read
carefully by qualified individuals before any handling, transport, inspection
or installation of the product. While every care has been taken in the
preparation of these instructions and the information given, it is the
responsibility of the installer to ensure that the system complies with the
national and international regulations in force, particularly those relating
to safety. EnviroVent Ltd, accepts no responsibility for breakages, accidents
or other problems due to failure to follow the instructions in this manual.
The extract fans in the QURO range are manufactured under strict production
and quality control standards, such as ISO 9001. All the components are
checked and all units are tested after assembly. We recommend that you check
that the model is correct and the details on the marking plate are as required
including temperature range and electrical information.
IMPORTANT: Before proceeding with installation and connection of the device,
make sure that power is switched off at the mains. The ambient operating
temperature
must be within the specific limits on the marking plate. If the extract fan is
connected to a duct, it must be used exclusively for the ventilation system.
Do not use this device in explosive or corrosive atmospheres. If the fan
extracts air in a room where a boiler or other combustion device is installed,
make sure that there are sufficient air inlets and outlets in the room to
ensure proper combustion. Children aged 8 and up can use this device, as can
individuals with physical, sensory or mental disabilities, or who lack
experience
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and knowledge, when supervised or trained to use the device safely and made
aware of the dangers that may be involved. Children should not be allowed to
play with the device. User cleaning and maintenance should not be done by
unsupervised children. The device can be mounted on the ceiling or wall, with
outlet directly outside or into a dedicated duct. This product is not suitable
for use with a Type AC RCD .
INSTALLATION
IMPORTANT: The power supply cables must be run through the cable gland and the
cable retention system as shown in labels 5 and 9 in Fig.2. The cross-section
of the power supply cable must be at least 0.5mm². To control
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the fan via a Ls, the options shown in Fig. 6, 7 and 8 should be used
(depending on the version chosen).
Parts in Fig 1 and Fig 2: 1: Front Cover 2: Central cover 3: Back cover 4:
Terminal strip 5: Cable gland 6: Display 7: Air speed sensor 8: Humidity
sensor 9: Cable retention
VERSIONS
The QURO is a decentralised mechanical extract fan designed to operate
continuously, providing a constant extraction of air at all times, for better
indoor air quality.
· Standard Model with Timer (QRST): This has several operating modes to vary
the speed of the fan with over-run timer. The QRST version must be connected
as shown in Fig. 6. with three wires for switching from trickle to boost
speeds (external switch and Ls).
· Relative Humidity Sensor Model with Timer (QRHT): Offering the same features
as the QRST version but with a humidity sensor. The QRHT version should use a
twowire connection, as shown in the first diagram in Fig. 7, to be triggered
automatically by the humidity sensor (switching from trickle to
boost speed). It can also be connected as per the second diagram in Fig.7 if you want to force it to switch to the boost speed with an external switch via the Ls.
· Relative Humidity Sensor Model with Timer and Pull Cord (QRHTP): Offering the same features as the QRHT version, with a pull cord to allow for manual activation of the boost speed. It should be connected with two wires, as shown in the first diagram in Fig. 8, to be triggered automatically by the humidity sensor (increasing the fan speed as required). With the two-wire connection, it can be switched to boost speed using the pull cord. It can also be connected three wires and override the sensor to switch to boost speed using an external switch and Ls (second diagram Fig. 8). It is recommended that a manual override is provided within the UK
Table of Airflows:
l/s
m3/h
5
18
8
29
11
40
13
47
16
58
20
72
25
90
30
108
OPERATING MODES AND MENUS
ENTER
All QURO models have a 7 segment display containing 3 digits. It has a keypad
with “Enter”, “+” and “-” keys to move through the menus. The display menu is
activated by pressing the “Enter” key and deactivated after 5 seconds if no
further keys are pressed. The display digits can be reset by pressing the
“Enter” key for more than 10 seconds and releasing it. In the operating
instructions, trickle means the lowest speed and boost, the highest speed.
STEPS TO SET UP THE OPERATING MODES. To access the menus, press “Enter” to
activate the display, then use “+” and “-” to cycle through the menu. Once the
option has been selected, press `Enter’ again. The parameter will blink, then
press “+” or “-” to change the values and “Enter” to confirm.
TRICKLE SPEED MENU (low speed) (QRST-QRHT-QRHTP versions)
ENTER
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At the default setting, the fan will run continuously at trickle speed. ·
Trickle settings: 5, 8, 11, 13, 16 l/s. · Factory setting: 8 l/s.
BOOST SPEED MENU (high speed) (QRST-QRHT-QRHTP versions)
ENTER The fan will switch to high (boost) speed when activated by an external
switch (all versions) , and the pull cord is pulled (QRHTP version) or when
the relative humidity setpoint is exceeded (QRHT and QRHTP versions). The fan
will return to the trickle speed flow rate after the time set in the timer
menu has elapsed or the RH/external switch has been deactivated. · Boost
airflow options: From 20 to 30
l/s with 1 l/s steps. · Factory setting: 25 l/s.
TIMER MENU (QRST-QRHT-QRHTP versions)
ENTER The fan will run at the boost speed for the time set in this menu when
the humidity or Ls event ends and before 12
returning to the trickle speed. For the QRHTP model, if the timer indicates 00
(00 indicates timer off), it will still run for at least 1 minute (only when
the pull cord is activated). · Possible options: From 1 to 30 min-
utes with 1-minute steps, 00 disables the timer mode. · The timer can also be
set to Automatic Timer Mode (AT). Possible options: – QRHT/QRHTP: If the
humidity in-
creases the RH sensor will take over until the humidity decreases. There is no
over-run timer when this occurs. – QRHTP Only: When the pull cord is activated
the timer will over-run by 10 minutes. – All Models when using an external
switch (i.e. light switch): · If the switch is activated for less than 3
minutes the run-on timer will not operate. · If the switch is activated for
more than 3 minutes and less than 30 minutes the run on timer will be 1/3 of
the time period for which the switch was activated. Example: If activated for
3 minutes = 1 minute over-run, if activated for 15 minutes = 5 minute
over=run. – If more than 30 minutes the timer will over-run by 10 minutes.
This is the maximum over-run period.
RELATIVE HUMIDITY MENU (QRHT-QRHTP versions)
ENTER
The fan will increase in speed when the Relative Humidity (RH) setpoint is
exceeded. · Possible options: From 00 to 90
with 5% steps. Setpoint range: 60, 65, 75, 80, 85, 90 or Automatic Intelligent
Humidity mode (AHT) (00 disables this operating mode). · Automatic Intelligent
Humidity Mode: The timer is disabled in RH mode as the operation is fully
automatic. · Factory setting: 70%.
Days: From 00 to 07. Sample display “d-03” = 3 days. Hours: From 00 to 23.
Sample display “h-18” = 18 hours. Therefore, this menu shows the years,
months, weeks, days and hours that the product has been in operation since its
installation and, in this example, it would be: 2 years + 1 week + 3 days + 18
hours. The display would look like this:
– Flow rate reading: If the flow rate reading is less than 4 l/s it is
displayed as F-Lo.
OPERATING INFORMATION MENU (QRST-QRHT-QRHTP versions)
This menu will be activated when any key is pressed for more than 3 seconds
and released. This menu shows the running time (years, weeks, days and hours),
the instantaneous flow rate, the relative humidity (QRHT versions only) and if
there are any errors. · Total Run Time & Test:
– Product operating time (motor running): Years: shows how long the device has
been running, from 00 to 99 years. Sample display “Y-02” = 2 years. Weeks:
From 00 to 52. Sample display “W-01” = 1 week.
ENTER Relative humidity reading (%) (QRHT and QRHTP versions): If the relative
humidity reading (%) is less than 45%, it is shown as H-Lo.
ENTER · Errors: Shown by priority from E-01
to E-03. If there is more than one at a time, they are displayed in order of
highest priority.
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– E-00 = No error – E-01 = Motor error – E-02 = Electronic error – E-03 =
Speed sensor or installa-
tion error.
RISKS TO CONSIDER
· Incorrect installation or use is a safety risk.
· Operating temperatures: indicated on the fan marking plate. Do not exceed
these limits. The air to be moved must be free of chemical particles that
could damage the product materials.
· Foreign bodies: make sure that no objects or mounting materials that can be
sucked in or dislodged are left in the fan area. If the fan is connected to
ducts, check that they are clean before connecting.
· Electrical hazards: do not exceed the values indicated on the marking plate.
Check the electrical connection and make sure it matches the product
instructions before switching on the fan for the first time.
· The unit needs to be connected to an appropriately protected circuit as per
local regulations.
· Mechanical risk: The fan must be installed on a solid base, level with the
correct direction of airflow. Use any accessories necessary to ensure proper,
safe assembly and do not leave any parts unassembled as this could compromise
the safety of the product. Do not touch the blade when in motion.
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TRANSPORT, HANDLING
The packaging for this device has been designed to withstand normal transport
conditions and to protect it from dirt. The device must only be transported in
its original packaging, otherwise it may be damaged or warped. Do not accept
any device that is not in its original packaging or that shows signs of having
been tampered with. Avoid impact and dropping. Do not place excessive weight
on top of the packaging.
MAINTENANCE
Before handling the device, make sure that it is disconnected from the mains,
even if it is switched off. The device should be inspected regularly in order
to avoid the accumulation of dirt. How often inspection is required will
depend on the working conditions. Clean the humidistat and air flow sensor
with a dry cloth or hoover. Make sure that these sensors are free of any kind
of dirt.
DECOMMISSIONING AND RECYCLING
The WEEE directive and our commitment to future generations oblige us to
recycle. Please do not forget to dispose of all leftover packaging materials
in the appropriate recycling bins.
The extract fan consists mainly of steel and plastic. The parts should be
separated for recycling into the following categories: – Steel and iron –
Plastics – Electronic scrap materials
Due to our policy of continuous innovation and improvement EnviroVent reserves
the right to alter products specification and appearance without notice. We
want to hear from you Your feedback is important to us as we strive to improve
our products, services, and overall customer experience. Please email us to
help us serve you better: feedback@envirovent.com
· The warranty is in addition to your statutory or legal rights.
For warranty conditions and exclusions, visit www.envirovent.com/warranty
WARRANTY CONDITIONS & EXCLUSIONS
Warranty Conditions & Exclusions Please note that a receipt will be required
as proof of purchase. Products bought from an unapproved source, including but
not limited to auction websites, are not covered by the warranty.
· The system must be correctly installed and operated according to the
instructions contained in the user guide supplied.
· The warranty will be rendered invalid if the system has been serviced,
maintained, repaired, taken apart or tampered with by any person not
authorized, which in any way contradicts the instruction guide set out by
EnviroVent.
· The warranty does not cover accidental damage, misuse or abuse.
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EnviroVent Ltd Harrogate West Business Park Unit 1 Bardner Bank Killinghall
Harrogate HG3 2SP
01423 810 810 info@envirovent.com
www.envirovent.com
Ref. 9023128300