Itho Advance User manual

user
manual
Itho
Advance

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1. Introduction 4
1.1. Configuration 5
1.2. Itho conditions 6
1.3. Serial number, date of
commissioning and scheduled
service intervals 7
2. Safety 8
2.1. General 8
2.2. Liability of the user 9
3. Description controller functions 10
3.1. Remote speed control hard wired 10
3.2. Remote speed control wireless 11
3.3. Frost protection 13
4. Commissioning 14
4.1. Manual potentiometers low-
and boost speed 14
4.2. Middle speed 14
5. Trouble shooting 15
5.1. FAQ’s 15
6. Maintenance 18
6.1. Cleaning 18
6.2. Filter replacement 18
7. Guarantee 20
Subject to changes without notice.
No rights can be derived from this user manual.
Contents

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1. Introduction
Indoor air quality and energy efficiency
are very important considerations in
dwellings today. The Itho Advance Heat
Recovery Ventilation Unit has been
developed to meet these demands and
offers controlled and better ventilation for
a healthy and comfortable indoor climate
in full compliance with current building
regulations, while regaining the heat to an
efficiency of up to 90%.
For the home owner or occupant:
This document explains the working
principle of the ventilation system and how
to operate and maintain this unit.
Never switch off the ventilation, by
disconnecting the power cord from
the mains supply!
(Except for service and maintenance
intervals.)

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1.1 Configuration
The Advance has been developed for
apartments and small houses with
approximately 100-125 m3/h balanced
exhaust and supply air volumes. It can be
fitted as a wall, floor, or ceiling mounted
unit for example in the space of a kitchen
cupboard.
Dimensions 597 mm width x 280 mm depth
x 760 mm height.
Note!
• Read this manual carefully.
• Failure to follow these instructions may
cause an adverse effect on your health.
• Leave these instructions in the unit.

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1.2. Itho conditions
Itho does not accept any liability for
damage caused by non-observance of the
installation instructions. Service activities
must exclusively be carried out by Itho or
by suitably qualified competent persons
using original Itho parts.

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Serial number:
Date of commissioning:
Installers company name:
Service call telephone number:
Next service / filter replacement interval:
1) date
2) date
3) date
4) date
5) date
6) date
7) date
8) date
9) date
10) date
1.3 Serial number, date of commissioning and scheduled service intervals

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2. Safety
2.1. General
• Do not use this appliance for
functions other than those described
in this booklet.
• Never touch the appliance with wet or
damp hands, or when barefoot.
• Do not store inflammable products in
the neighbourhood of the unit.
• The unit is only suitable for 230 VAC/
50Hz electric mains.
• Never modify the fan or electronics by
yourself.
• Never plug in the power cord if the
motor part is not placed into the unit.
ä
Always disconnect the electric power cord
from the mains, before you remove the
motor part!

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ä
Replace the filters on time
Filter pollution could damage your health!
2.2. Liability of the occupant /
user
• Cleaning or replacement of the filters
in the Advance unit at the correct
time. See chapter 6.2 Maintenance.
• Cleaning the grilles in the rooms at
regular intervals.
Note!
• The grilles should always be placed back
in their original location and position.
If the grilles are changed or placed
in a wrong position, the ventilation
volumes will no longer be correct and
the ventilation system might not work
properly!
• Always disconnect the electric
power cord when carrying out any
maintenance.

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3. Description controller
functions
Your Advance heat recovery unit has been
equipped with a high performance heat
recovery exchanger, so there is no need to
reduce the air volumes in order to thermal
energy. However, reducing noise and saving
electricity is also an important issue.
You are able to switch the unit 3-speed:
• Low (continuous).
• Middle (extra comfort – if there are
more persons in the dwelling).
• Boost (cooking and bathing).

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3.1. Remote speed control
hard wired
(supplied separately)
The speed selector switch does not require
any maintenance.
Manual speed selector:
You are able to select a speed by hand:
1.Low (trickle), 2.Middle, 3.Boost.

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3.2. Remote speed control
wireless
(supplied separately)
The ITHO-RFT remote controller has been
equipped with a long life battery type
VARTA CR2032 Li-Mn 3V. Under normal
circumstances the battery life time will be
approximately 10 years.
RFT-wireless remote controller:
You are able to select a speed by pushing
button: Low (trickle speed), Middle, Boost,
Timer function.

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Every time you push the timer function
button, the unit will be switched to boost
speed for 10/20/30 minutes. After this time,
the set speed returns automatically to the
former speed.
In case the former speed was ‘Boost’ then
the speed returns to low.
3.3. Frost protection
Note!
In case of very low outside temperatures
for more than 24 hours, the fan motor will
automatically switch off for several minutes to
avoid a frozen heat exchanger! It will restart
itself when the temperature has risen.

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4. Commissioning
The installer is responsible for commis-
sioning the required air volumes rates for
every room, in compliance with the current
local regulations (for England and Wales
this is the Domestic Ventilation Compliance
Guide).
4.1. Manual potentiometers
low- and boost speed 4.2. Middle speed
Middle speed has been set in the controllers
software by the manufacturer and cannot be
changed.
ä
Do not change the manual potentiometers
on the Advance unit, it has been set by the
installer in accordance to the required air
volumes.

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5. Trouble shooting
5.1. FAQ’s
a. The fan has been switched off
unexpectedly.
• Mains voltage failure, check the
Fuse Spur or in the distribution
board cabinet/meter cupboard.
• Plug in the power cord.
• Frost protection active, wait for
120 minutes and the fan will be
switched on.
b. The unit makes a lot of noise.
I. Gurgling noise coming out the unit.
• The condensate trap below the unit
has a too low water level, fill it up
with water.
• The flexible condensate hose is not
completely in the condensate trap,
push it deeper.
II. Rattling noise coming out the unit.
• Fan motor fault, please contact your
installer or service technician.
III. Swishing sound coming out of the
grilles.
• There is too much air pressure drop
in the duct and grilles, clean both
filters in the Advance unit and the

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grilles in the rooms and check if the
grilles are in their original position.
c. I want to switch off the unit at night.
• Not possible, you also need fresh
air during the night.
d. Unpleasant smell.
I. I smell the cooking in the whole
house.
• Air extract rates are too low, switch
on boost speed at cooking time.
• The filters are polluted, clean or
replace both filters.
• The grilles are dirty, clean all
grilles.
II. Near the unit.
• Condensate trap below the unit is
empty, fill it up with water.
• The flexible condensate hose is not
completely in the condensate trap,
push it in deeper.
III. Near the supply air grilles.
• The unpleasant air comes from
outside, not a ventilation fault but
to be sure, check and clean supply
air filter.

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e. Too much condensation in the bathroom.
• Too low exhaust air volume, switch
on boost speed while showering or
bathing. Check and clean filters
and grille.
f. Water leakage near the unit.
• Condensate trap is clogged, clean
it.
• Condensate flexible hose is clogged
or twisted, clean it and replace it
into the trap.
g. No speed change after pushing the button
on the RFT remote controller.
• Replace the battery in the remote
controller (type CR2032 Li-Mn).
h. If the problem persists, report the details
to your installer or service technician!

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6. Maintenance
6.1. Cleaning the Advance unit
outside covers
Keep the unit surface free from dust.
6.2. Filter replacement
For the user, maintenance is limited to
cleaning and replacing the filters.
These will need to checked annually and
either cleaned or replaced.
This may differ per situation depending on
environmental pollution from industry or
traffic and also the activities in the house.
A) Remove the plastic cover.

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B) Remove the filter from the unit. C) Clean the filter with a vacuum cleaner.

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7. Guarantee
Warranty
The Advance warranty is valid for 3 years
after the installation date.
Disclaimer
• This warranty does not apply to:
• Disassembly and assembly costs.
• Faults which are caused by incorrect
treatment, negligence or accident.
• Faults that have been caused by
repairs by third parties without
authorisation from ITHO-UK Ltd.
If the appliance does not function correctly
or a fault occurs, please contact your
installer or service technician immediately.
Ensure that only genuine spares are used
for repairs.