Venmar AVS S10C ERV User manual

ENERGY RECOVERY VENTILATORS
VENMAR AVS S10 ERV,
AVS S10CERV AND AVS S10 ERVPLUS
Model no.: 41700
Model no.: 41702*
VB0198
VB0197
Model no.: 41704
VB0199
PLEASE READ AND SAVE THESE INSTRUCTIONS
Venmar Ventilation inc., 550 Lemire Blvd., Drummondville, QC, Canada J2C 7W9
www.venmar.ca
*This product earned the ENERGY STAR® by
meeting strict energy efficiency guidelines set
by Natural Resources Canada and the US EPA.
It meets ENERGY STAR requirements only
when used in Canada.
20977 rev. 01
USER GUIDE

Thank you for buying a Venmar unit!
We have prepared this User Guide especially for you. Please read it carefully to ensure you obtain full benefit from your ERV.
Please take note that this manual uses the following symbols to emphasize particular information:
CAUTION
Make sure at all times that the outside intake and exhaust hoods are free from any snow during the winter season. It is
important to check your unit during a big snow storm, so it doesn’t draw in any snow. If this is the case, please operate the
unit in recirculation mode (if available), or turn it OFF for a few hours.
Do not use your unit during construction or renovation of your house or when sanding drywall.This type of dust may damage
your system.
Since the electronic control system of the unit is incorporated with a microprocessor, it may not operate correctly because of
external noise or very short power failure. If this happens, unplug the unit and wait approximately 10 seconds.Then, plug the
unit in again.
When leaving the house for a long period of time (more than two weeks), a responsible person should regularly check if the
unit operates adequately.
If the ductwork runs through an unconditioned space (e.g.: attic), the unit must operate continuously except when performing
maintenance and/or repair. Also, the ambient temperature of the house should never drop below 18°C (65°F).
2
NOTE: Indicates supplementary information needed to fully complete an instruction.
We welcome any suggestions you may have concerning this guide and/or the unit, and we would appreciate hearing your comments on ways
to better serve you. Please forward all correspondence to us at the address indicated on the product registration card included with this guide.
CAUTION
Identifies an instruction which, if not followed, may severely damage the unit and/or its components.
WARNING
Identifies an instruction which, if not followed, might cause serious personal injuries including possibility of death.
!
TABLE OF CONTENTS
1. DEFROSTING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
2.1 AVS S10 ERVPLUS BOOTING SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 AVS S10 ERV AND AVS S10CERV BOOTING SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 BLINKING LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 AVS S10 ERVPLUS INTEGRATED DEFROST CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 AVS S10 ERV AND AVS S10CERV INTEGRATED CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.6 SETTING EXTENDED DEFROST FOR AVS S10 ERV AND AVS S10CERV UNITS . . . . . . . . . . . . . . . . . . . . . . . . 4
2.7 ALTITUDE MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
2.8 DECO-TOUCH MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
2.9 SIMPLE-TOUCH CONSTRUCTO MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10 LITE-TOUCH CONSTRUCTO MAIN CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11 CONSTRUCTO MAIN CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.12 OPTIONAL AUXILIARY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-14
3.1 QUARTERLY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13
3.2 ANNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
REPLACEMENT PARTS AND REPAIR
In order to ensure your ventilation unit remains in good working condition, you must use Venmar Ventilation Inc. genuine replacement
parts only. The Venmar Ventilation Inc. genuine replacement parts are specially designed for each unit and are manufactured to comply
with all the applicable certification standards and maintain a high standard of safety. Any third party replacement part used may cause
serious damage and drastically reduce the performance level of your unit, which will result in premature failing. Venmar Ventilation Inc.
also recommends to contact a Venmar Ventilation Inc. certified service depot for all replacement parts and repairs.

When the outside temperature is below -10°C (14°F)*, recovery of energy creates frost in the core.
To maintain its proper operation, the unit is programmed to defrost the energy recovery core.
For AVS S10 ERV and AVS S10c ERV models, during the defrost cycle, the unit keeps the same speed but stops to supply fresh air.
For AVS S10 ERVplus model, during the defrost cycle, the dampers close but the unit speed can be set on high or low, according to your
needs. See point 2.4 for more details.
After defrosting, the unit returns to the operating mode selected by the user.
*Due to its unique design, the AVS S10c ERV model is programmed to defrost on a regular basis, no matter the outdoor temperature.
1. DEFROSTING MODES
3
2.CONTROLS
2.1 AVS S10 ERVPLUS BOOTING SEQUENCE
VC0152
A
The unit booting sequence is similar to a personal computer booting sequence.
Each time the unit is plugged after being unplugged, or after a power failure, the unit will perform a booting sequence before starting
to operate.
During the booting sequence, the LED located on the unit door (Ain illustration below) will be OFF for 3 seconds, and then will
turn RED for the rest of the booting sequence (approximately 30 seconds). During this RED light phase, the unit is checking and
resetting the motorized damper position.
Once the motorized damper position completely set, the booting sequence is done; the color of the LED will show on which defrost
cycle the unit is set.
NOTE: No command will be taken until the unit is fully booted.
If a problem occurs during the unit operation, or if the unit turns in Protection mode*, its integrated control LED (A) will blink. The
color and pattern of the blinking light depends on the type of error detected (or if running in Protection mode, see point 7B on page 14).
Refer to Section 4Troubleshooting for further details.
* All units are equipped with an electronic supplemental protection, called Coldshield™ Protection, to stop air distribution in dwelling
if air distribution temperature drops below freezing point, due to abnormal conditions.
2.3 BLINKING LED
2.2 AVS S10 ERV AND AVS S10CERV BOOTING SEQUENCE
The unit booting sequence is similar to a personal computer booting sequence.
Each time the unit is plugged after being unplugged, or after a power failure, the unit will perform a booting sequence before starting
to operate.
During the booting sequence, the integrated control LED located on the unit door (Ain illustration below) will light up and remain
GREEN or AMBER for 3 seconds, and will then shut off*; the booting sequence is done.
* or will light the color of the previous mode to show the unit resume to it, if the unit is controlled by its integrated control.
NOTE: No command will be taken until the unit is fully booted.

2.CONTROLS (CONT’D)
After the booting sequence is done, the LED (A) will light and stay lit to show in which defrost cycle the unit is set. Use the push
button (B) to change the defrost cycle of the unit (see table below).
2.4 AVS S10 ERVPLUS INTEGRATED DEFROST CONTROL
VC0152
AB
According to your needs, there are 3 defrost cycles available:
STANDARD: This is the factory set defrost cycle. This mode is the most efficient used to suit HVI and ENERGY STAR®
performance. When needed, the unit will perform defrost cycle on high speed.
PLUS: This mode has been created for people who live in cold region (outside temperature -27°C [-17°F] and lower). This
setting makes the unit perform defrost cycle on high speed for a longer period of time.
DISCRETION: When needed, the defrost cycle will be performed on the same speed than the unit ventilation speed. This means
that if the unit is set on high speed, the defrost cycle will be done on high speed, but if the unit is set on low speed,
the defrost cycle will be done on low speed.
NOTE:There is a 15-minute delay for the new defrost cycle choice
to be kept in memory; if a power failure occurs during this
time delay, when the power returns, the unit resume to its
previous setting.
LED COLOR RESULTS
AMBER UNIT IS ON LOW SPEED
GREEN UNIT IS ON HIGH SPEED
NOLIGHT UNIT IS OFF OR CONTROLLED BY AMAIN CONTROL
Use the push button (B) to control the unit. The LED (A) will then
shows on which mode the unit is in. Refer to table at right.
NOTE: When using main control, the integrated control
must be turned off (no light from LED).
2.5 AVS S10 ERV AND AVS S10CERV UNITS INTEGRATED CONTROL
2.6 SETTING EXTENDED DEFROST FOR AVS S10 ERV AND AVS S10CERV UNITS
These units are factory set to normal defrost. In cold region (outside temperature -27°C
[-17°F] and lower), it may be necessary to setup extended defrost. During the first 3 seconds
of booting sequence, the integrated control LED shows the current defrost mode (refer to
table at right).
LED COLOR DEFROST MODE
GREEN NORMAL
AMBER EXTENDED
Within the first 3 seconds of booting sequence, press on push button until the LED starts to blink, then release the push button; the
LED will blink AMBER 5 times. After that, the LED will shut off, then turn RED (the unit returns in its booting sequence).
4
LED COLOR DEFROST CYCLE
GREEN STANDARD
RED PLUS
AMBER DISCRETION

2. CONTROLS (CONT’D)
2.7 ALTITUDE MAIN CONTROL (FOR AVS S10 ERVPLUS MODEL ONLY)
ALTITUDE WALL CONTROL KEYS AND INDICATORS
MODE/PREF KEY
Press and hold this key for 3 seconds to access Preference setting menu.
MODE
PREF

Press this key to select whether Ventilation mode (air exchange with the outside),
Recirculation mode (air recirculation within the house) or Program mode (the
operation of the ventilation unit is customized by the user. Refer to HOW TO SET
PERIODS FOR PROGRAM MODE section).
Use the arrow keys to:
• Select ventilation and recirculation speeds.
• Review the programmed periods.
• Select Preference and Program values.


OR
Press this key to enable and disable the SMART mode.
The SMART mode uses indoor relative humidity level and minimum and
maximum outdoor temperature values to manage the air exchange with
the outdoors, in order to enhance comfort in the house.
ARROW KEYS

8 SEC.Press on Up arrow key for 8 seconds to display indoor relative
humidity level (in percentage).

SET
SET KEY
Press and hold this key for 3 seconds to access setting periods for
Program Mode.
SMART KEY

SMART
3 SEC.
MODE
PREF

Press this key to confirm the chosen option and go to the following setting.
The S10 ERVplus unit must be controlled by a main control. For more convenience, S10 ERV and S10c ERV units can also be controlled
using an optional main control. Only one main control can be connected per unit.
NOTES:1. The integrated control must be turned OFF on S10 ERV and S10c ERV models to use a main control.
2. If an optional auxiliary control is used, if activated, this auxiliary control will override the optional main control operation.
SMART
SET
MODE
PREF
VC0100
POWER INDICATOR
This indicator, located in the upper left side of the wall control, illuminates
when the control powered on.
FILTER MAINTENANCE INDICATOR
This indicator, located in the upper right side of the wall control, illuminates
when it is time to perform the ventilation unit filter maintenance (refer to
Section 3 Maintenance).
Once the filter maintenance is done, reset the filter maintenance indicator
as follow:

SET
MODE
PREF

BOTH DURING 5 SEC.
Press simultaneously on both MODE/PREF key and SET key
for 5 seconds to turn off the filter maintenance indicator light.
After a power failure, the Altitude wall control returns to its original settings. However, if the power
failure duration is more than 4 hours, the wall control looses only its day and time settings memory
(these must be reprogrammed, see next page). The rest of the preferences and settings is kept in
permanent memory.
POWER FAILURE
5

6
SETTING AVAILABLE VALUES DEFAULT OPTION
CURRENT DAY MON/TUE/WED/THU/FRI/SAT /SUN MON
HOUR DISPLAY 12:00 AM OR 24:00 12:00 AM
CURRENT HOUR FROM 0 TO 12 OR 24 12
CURRENT MINUTE FROM 00 TO 59 00
TEMPERATURE UNIT °C OR °F °C
INSIDE
TEMPERATURE DISPLAY ON OR OFF ON
MINIMUM OUTSIDE
TEMPERATURE
FOR AIR EXCHANGE*
-40°C TO 0°C
OR
-40°F TO 32°F
-25°C
OR
-13°F
MAXIMUM OUTSIDE
TEMPERATURE
FOR AIR EXCHANGE*
1°C TO 40°C
OR
33°F TO 104°F
27°C
OR
81°F
*INPROG OR SMART MODE, THESE LIMIT VALUES ALLOW TO STOP AIR EXCHANGE WITH
THE OUTSIDE FOR BETTER COMFORT IN THE HOUSE.
BACKLIGHT COLOR BLUE OR GREEN BLUE
BACKLIGHT DISPLAY AUTO OR ON AUTO
AUTO: BACKLIGHT ACTIVATED 10 SECONDS WHEN ANY KEY IS PRESSED.
ON: BACKLIGHT ALWAYS ON.
OFF MODE FOR
INTERMITTENT MODE
VENTILATION/RECIRCULATION
OR VENTILATION/OFF VENT/RECIRC.
AFTER AVENTILATION PERIOD, DETERMINES THE SECOND PA R T OF THE CYCLE
(RECIRCULATION OR OFF).
PM PM
2. CONTROLS (CONT’D)
2.7 ALTITUDE MAIN CONTROL (FOR AVS S10 ERVPLUS MODEL ONLY)(CONT’D)
HOW TO SET PREFERENCES
In order to benefit from all of the features of your wall control, the preferences must be set. Table below shows all available settings.
Press and hold MODE/PREF key for 3 seconds to access the setting menu.
NOTE: You can exit Preferences setting by pressing on MODE/PREF for 3 seconds any time in
the process, or wait 60 seconds. The modified values will be kept in memory.
MODE
PREF

If the control is set for the very first time, the current day will be the first setting to be made: MON
(for Monday) will flash on screen.
SMART
SET
MODE
PREF
NOTE: While setting Preferences, the corresponding setting value flashes (e.g.: while setting current hour, hour is flashing).
Use the arrow keys to select value.


OR
Press SET key to confirm the selected preference and go to next setting.

SET
3 SEC.
SETTING PREFERENCES PROCEDURE
NOTE: The outdoor temperature value displayed on LCD screen comes from the reading while the unit is performing air exchange.
Also, keep in mind that outdoor temperature reading is taken from the unit fresh air from outside port; due to the lenght of
the insulated duct, the result of the reading is slightly different from the real outside temperature.

HOW TO SET PERIODS FOR PROGRAM MODE
The Program Mode allows the user to customize the operation of his/her ventilation unit, for week and weekend days. All days are
divided in 4 periods. The periods starting hour and ventilation speed are factory set (see below).
DAILY PERIODS DEFAULT SETTINGS
PERIOD STARTING HOUR MODE
PERIOD 1 (MORNING) 6:00 AM MIN
PERIOD 2 (DAY) 9:00 AM 20 MIN/H
PERIOD 3 (EVENING) 5:00 PM MIN
PERIOD 4 (NIGHT) 11:00 PM 20 MIN/H
2. CONTROLS (CONT’D)
2.7 ALTITUDE MAIN CONTROL (FOR AVS S10 ERVPLUS MODEL ONLY)(CONT’D)
7
TOCHANGE THESE VALUES:
Press SET key for 3 seconds.

SET
3 SEC.
SMART
SET
MODE
PREF
PROG (for Program) will appear on
screen and week days will flash.
NOTE:If the week days were the first
to be set, the weekend days
will appear on screen; but if
the weekend days were the
first to be set, then the week
days will appear on screen.
Use the arrow keys to select between
week days or weekend days.


OR
Press SET key to confirm the choice
and go to setting daily period 1.

SET
SMART
SET
MODE
PREF
Period 1 will appear on screen and
hour display will flash.
Use the arrow keys to select the
period starting hour.
NOTE:Time changes by 15 minutes
increments.


OR
Press SET key to confirm
the choice and go to
select the ventilation
speed or type.

SET
SMART
SET
MODE
PREF
Ventilation speeds and
type will flash.
Use the arrow keys to
select the ventilation
speed or type.


OR
Press SET key to confirm
the choice and go to
setting daily period 2.

SET
Period 2 will appear on screen and hour display will
flash. Proceed as for Period 1 for all daily periods. Once
the ventilation speed or type for Daily Period 4 has been
selected:
Press SET key to confirm
and go to weekend days.

SET
SMART
SET
MODE
PREF
Weekend days and
period 1 will appear on
screen and hour will
flash.
Set weekend days periods as for week days.
Press SET key
for 3 seconds.

SET
3 SEC.
TOEXIT SETTING PERIODS

2. CONTROLS (CONT’D)
2.8 DECO-TOUCH MAIN CONTROL (FOR AVS S10 ERVPLUS AND AVS S10 ERV MODELS ONLY)
VC0151
BACKLIGHT
If the backlight is not illuminated, the first button pressed (no matter which button) shall turn on the backlight
only, without incurring any other changes. The backlight remains illuminated for 10 seconds after the last button
pressed.
OPERATING MODES


OR To change the operation modes of the ventilation unit, press the UP or DOWN arrow button. Operating mode label
will then scroll up or down on LCD screen.
OFF
Put the unit on standby mode, so it will only respond to override wall controls (if present). On LCD screen, only the
House is visible showing the control is powered on. This is the factory default mode.
RECIRC
Air is recirculated inside the house at high speed.
NOTE:This mode is not available for AVS S10 ERV.
20 MIN/H
The ventilation unit exchanges air intermittently on a one hour cycle as follows: OFF for 40 min. (or recirculation*
on high speed for 40 min., see next page) and then exchange air during 20 min. on low speed. Repeat cycle after
the 20 min. of air exchange.
*Only OFF mode for AVS S10 ERV.
MIN
Air is exchanged with the outdoors on low speed.
MAX
Air is exchanged with the outdoors on high speed.
8

Setting the relative humidity level allows to select the maximum desired indoor humidity level (in percentage). This value will be
used to start the dehumidistat override (air exchange on high speed).
NOTE: Before proceeding, press on any button to turn on the backlight.

3 sec. Press and hold OK for 3 sec. to access the setting menu. The backlight will be activated during all the
procedure.
The relative humidity arrow and value will flash (default setting: 45%).
OR



Use UP or DOWN arrow to change the value. The value changes by 1% increments.
Lower value: 30%. Higher value: 55%. Still flashing.
Press OK button to accept new value and go to next setting.
NOTE:For AVS S10 ERV, press OK button to accept new value and quit setting menu.


OR

OR
Use UP or DOWN arrow
to change to recirculation
in standby.
Press OK button to accept and quit setting menu.
Recirculation arrows are turning and rE flashes to show that RECIRCULATION² is in standby.
Two lines are flashing to show that OFF¹ is in standby (default configuration setting).

Press OK button to accept and quit setting menu.
HOW TO SET THE RELATIVE HUMIDITY (RH) LEVEL AND CHOOSE BETWEEN OFF IN STAND BY OR RECIRCULATION IN STANDBY*
¹OFF IN STANDBY: On 20 min./h. mode, the ventilation unit is OFF during 40 minutes and exchanges air with the outdoors on low
speed during the remaining 20 minutes of the hour; this is the default value.
RECIRCULATION IN STANDBY*: On 20 min./h. mode, the ventilation unit recirculates the indoor air for 40 min. on high speed and
exchanges air with the outdoors on low speed during the remaining 20 min. of the hour.
*RECIRCULATION in standby is not available for AVS S10 ERV model.
2. CONTROLS (CONT’D)
2.8 DECO-TOUCH MAIN CONTROL (FOR AVS S10 ERVPLUS AND AVS S10 ERV MODELS ONLY) (CONT’D)
9

10
2. CONTROLS (CONT’D)
2.8 DECO-TOUCH MAIN CONTROL (FOR AVS S10 ERVPLUS AND AVS S10 ERV MODELS ONLY) (CONT’D)
In the operating modes MIN, MAX, 20 min./h. and RECIRC (if available), the user can select a dehumidistat override so that if the
relative humidity (RH) in the house exceeds the RH setting previously stored, the ventilation unit will exchange in high speed until
the target indoor RH setting is reached.
An air exchanger is not a dehumidifier, but it can change the indoor relative humidity by bringing in drier or more humid air from
outside during non heating season.The dehumidistat override function is useful to reduce indoor RH when the outdoor air is cool
and dry during the heating season. Select a target RH between 30% and 55% according to your comfort. When outdoor relative
humidity is high (e.g. in summer), turn off the override by pressing OK until the RH display disappears.
When the dehumidistat override is activated, the AUTO indicator will appear on LCD screen to show that the actual
mode is being overridden. Also, the relative humidity appears (if it was not shown, see example beside). Once the target
humidity level is reached, the unit goes back into its original operating mode and AUTO disappears from LCD screen.
NOTE: If the actual mode is MAX, only the relative humidity level appears on screen, AUTO label willl not appear.
To engage the humidity override, press OK. The actual indoor RH and the %HUM label appear on LCD screen.
NOTE: If the actual RH is less than 20%, then the humidity indicator will display “LO”, and if the actual RH is greater than 80%, then
the humidity indicator will display “HI”.
To turn off the dehumidistat override, press OK again. The RH and %HUM display will disappear from LCD screen.
DEHUMIDISTAT OVERRIDE SELECTION
The maintenance indicator is represented by an M in a rounded triangle, at the top of the house (see at
right). If this indicator is flashing, perform the quarterly maintenance, and if it is not flashing, perform the
annual maintenance (refer to Section 3).
RESETTING MAINTENANCE INDICATOR: Press simultaneously on both arrow buttons, maintenance indicator will disappear from
LCD screen.


AND
MAINTENANCE INDICATOR
After a power failure, the wall control returns to its original operation mode. All settings are kept in memory.
POWER FAILURE
2.9 SIMPLE-TOUCH CONSTRUCTO MAIN CONTROL (FOR AVS S10 ERVPLUS MODEL ONLY)
RECIRCULATION
MAX
MIN
VC0145
S-T
Activate the push button; the color of the indicator shows the unit operating mode.
Color Mode Suggested Use
GREEN Recirculation Use this mode when you deem the
inside air is too dry in heating season,
or too humid during cooling season. In
this mode, the unit stops exchanging
with the outside and recirculates inside
air at high speed.
YELLOW Min Speed
Ventilation
For normal daily operation.
RED Max Speed
Ventilation
For excess pollutants and humidity
(parties, odors, smoke, etc.)
NOTE: After a power failure, the wall control turns OFF.

11
2. CONTROLS (CONT’D)
2.10 LITE-TOUCH CONSTRUCTO MAIN CONTROL (FOR ALL MODELS)
INTERMITTENT
MAX
MIN
VC0124
L-T
Activate the push button; the color of the indicator shows the unit operating mode.
Color Mode Suggested Use
GREEN Intermittent Select this mode when you are
away from the house for a few days.
Also, when you deem the inside
air is too dry in heating season, or
too humid during cooling season.
In this mode, the unit is OFF for
40 minutes per hour and ventilates
at minimum speed the remaining
20 minutes of the hour.
YELLOW Min Speed
Ventilation
For normal daily operation.
RED Max Speed
Ventilation
For excess pollutants and humidity
(parties, odors, smoke, etc.)
NOTE: After a power failure, the wall control turns OFF.
Adjusting AIR SUPPLY CONTROL
1) Select “MIN” or “MAX” using slide switch (A).
• When “MIN” (minimum speed) is selected, if the knob (B) is set above the click, the
unit will exchange in low speed with the outside and if it is set below the click, the unit will
exchange on high speed with the outside until the desired humidity level has been reached.
• When “MAX” (maximum speed) is selected, the unit will exchange on high speed with
the outside either if the knob is set below or above the click.
2) To turn off the unit, slide the switch at the “OFF” position.
Adjusting DEHUMIDISTAT
Setting during the summer months:
During this period, unless being afflicted with breathing problems, using the Dehumidistat is
unnecessary. Set the slide switch to “OFF”. (Do not exchange in day time; exchange at night
time, if cool outside, or if it is not raining.)
Setting during the fall, winter and spring months:
(When severe condensation appears on windows)
1) Determine the humidity level in your house (bring the knob (B) counterclockwise to its maximum position, then bring it back
clockwise slowly until you hear a “click”).
2) Set the knob to one line under this temperature level or “click”.
2.11 CONSTRUCTO MAIN CONTROL (FOR ALL MODELS)
--5°C
23°F
5°C
41°F
C
O
M
F
O
R
T
Z
O
N
E
-20°C
-4°F
OFF MIN MAX
#
X
X
X
X
X
0
1
/
9
8
V
C0086
CONSTRUCTO
BA
CAUTION
Do not select a temperature below -20°C (-4°F). This could lead to excessive dryness in the air causing discomfort for
the occupants.
It is possible (and normal) to experience condensation on your windows when drastic changes in temperature happen (for
example: -5°C [23°F] to -20°C [-4°F]). In that case, we suggest waiting a few days to allow the situation to stabilize.

2. CONTROLS (CONT’D)
2.12.1 20-MINUTE LIGHTED PUSH BUTTON
(FOR AVS S10 ERV AND
AVS S10CERV MODELS ONLY)
Press once to activate the push button.
The unit will operate on high speed for
20minutesand the indicatorwilllightup.
To stop activation before the end of the
20-minute cycle, push one more time.
The unit will get back to its previous
setting.
VC0141
2.12 OPTIONAL AUXILIARY CONTROLS
Contrary to the main controls, many optional auxiliary controls can be connected to the same ventilation unit.
NOTE:When outside temperature drops below -10°C (14°F), the unit will perform a defrost cycle at the end of auxiliary control cycle.
2.12.3 DEHUMIDISTAT
(FOR ALL MODELS)
Adjust knob to the
desired maximum
indoor humidity level.
VC0009
CAUTION
Do not select a humidity level below 30%.This could lead
to excessive dryness in the air causing discomfort for the
occupants.
OFF
10
Turn
Past
VC0017
20
30
40
50
60
MINUTES
HOLD
2.12.2 20/40/60-MINUTE PUSH-BUTTON TIMER
(FOR AVS S10 ERVPLUS MODEL ONLY)
Location: Located in the bathroom
or in other locations where
there is temporary humidity
excess or pollutants.
Purpose: Toeliminateexcesshumidity
produced by showers or
other periodic activities
producing pollutants.
Within 2 seconds, push once for 20 minutes, twice for
40 minutes or three times for a 60-minute activation.
Results expected:
1. Motor speed: high for 20, 40 or 60 minutes.
2. Indicator light goes “ON” and flashes every 5 seconds
(once to indicate a 20-minute operation, twice for a
40-minute, and three times for a 60-minute operation).
3. Air exchange indicator light goes “ON”.
4. When choosen duration is completed, the unit
resumes to its previous settings.
NOTE: To stop activation before the end of the chosen
duration, push one more time.
VC0143
2.12.4 60-MINUTE CRANK TIMER
(FOR ALL MODELS)
This control makes the system operate
at high speed for periods varying
from 10 to 60 minutes.
3. MAINTENANCE
Risk of electric shock. Before performing any maintenance or servicing, always disconnect the unit from its power source.
When cleaning the unit, it is recommended to wear safety glasses and gloves.
WARNING
!
3.1 QUARTERLY MAINTENANCE
1. Turn off and unplug the unit.
2. Open the unit door:
AVS S10 ERV AND AVS S10 ERVPLUS MODELS:
Unlatch both side latches (A).
AVS S10CERV MODEL:
Remove both door screws (B) and set aside. VD0331 A B
12

13
3. MAINTENANCE (CONT’D)
3.1 QUARTERLY MAINTENANCE (CONT’D)
2. Open the unit door (cont’d)
3. While retaining the core (), loosen the wing nut () and rotate the core retaining
bracket (shaded part in illustration at right) to disengage it from the core flange.
Slide out the core with its filters.
4. Clean the inside walls and door of the unit with a damp cloth, then wipe with a clean
dry one.
5. Remove both filters from core top and wash them under hot water with mild soap.
Rinse thoroughly and let dry completely before reinstalling on the core.
6. Remove the dust on the core using a vacuum cleaner and a soft brush attachment.
VO0257


Always hold the core when rotating the core retaining bracket; failure to
do so will cause the core to fall out.
WARNING
!
Do not soak the recovery core in water!
CAUTION
Be careful when opening the door; water may be present when outdoor
temperature is cold.
CAUTION
VR0085
VD0335
MOTOR - MOTEUR
FILTER - FILTRE
ENTRETIEN

FILTRES
E
N
CONDITIONS
NORMALES
D
’
UTILISATION
,
LES
FILTRES
DEVRAIENT
ÊTRE
LAVÉS
TOUS
LES
3
MOIS
.
• U
TILISER
UN
ASPIRATEUR
POUR
ENLEVER
LA
POUSSIÈRE
ACCUMULÉE
SUR
LES
FILTRES
.
• L
AVER
LES
FILTRES
DANS
UNE
SOLUTION
D
’ EAU
TIÈDE
ET
DE
SAVON
DOUX
,
RINCER
ET
LAISSER
SÉCHER
.

NOYAU
L
E
NOYAU
DOIT
ÊTRE
NETTOYÉ
UNE
FOIS
PAR
AN
,
LORS
DE
L
’
ENTRETIEN
ANNUEL
.
• U
TILISER
UN
ASPIRATEUR
MUNI
D
’
UNE
BROSSE
À
POIL
DOUX
POUR
ENLEVER
LA
POUSSIÈRE
DU
NOYAU
.

BOUCHES EXTÉRIEURES D’ENTRÉE ET D’ÉVACUATION DE L’AIR
V
ÉRIFIER
LES
GRILLAGES
DES
BOUCHES
EXTÉRIEURES
ET
LES
NETTOYER
AU
BESOIN
.
A
USSI
,
PAR
TEMPS
FROID
,
S
’
ASSURER
QU
’
IL
NE
S
’
Y
FORME
PAS
D
’ ACCUMULATION
DE
NEIGE
OU
DE
GLACE
.
ATTENTION
NEPAS TREMPER DANS L’EAU! LENOYAUPEUT FACILEMENT
S’ENDOMMAGER SURTOUTS’IL EST TREMPÉ.
MOTOR - MOTEUR
FILTER - FILTRE
MAINTENANCE
FILTERS
UNDER NORMAL CONDITIONS, FILTERS
SHOULD BE WASHED EVERY 3 MONTHS.
• USE AVACUUMCLEANER TO REMOVE
ACCUMULATED DUST ON THE FILTERS.
•WAS H FILTERSIN ASOLUTION OF
LUKEWARM WATER AND MILD SOAP,
RINSE, AND LET DRY.
CORE
THE CORE SHOULD BE CLEANED ONCE AYEAR, WHEN
PERFORMING ANNUAL MAINTENANCE.
• USE AVACUUMCLEANER WITH ASOFT BRUSH ATTACHMENT
TO REMOVE DUST ON CORE.
EXTERIOR AIR INTAKEAND EXHAUST HOODS
CHECK THE INTAKE AND EXHAUST SCREENS ON THE EXTERIOR HOODS FOR DEBRIS AND CLEAN WHEN
NECESSARY.ALSO, CHECK DURING COLD WEATHER TO MAKE SURE NO SNOW OR ICE HAVE BUILT UP ON SCREENS.
CAUTION
DONOT SOAKIN WATE R! THE CORE CAN EASILY BE DAMAGED
ESPECIALLYIF IT IS SOAKED.
FILTER LOCATION FILTER LOCATION
7. Reinstall the filters on the cleaned core; refer to the core label for proper location.
8. Slide the cleaned core with filters in the unit. Refer to filters location indicators embossed
inside the unit to position adequately the core. Use the core bracket to lock the core in place.
9. Close the door, plug back the unit and turn it on.
NOTE:The unit will return to its previous setting after a 30-second delay for booting sequence.
VD0334
Hold the core until the core bracket is completely tighten.
WARNING
!

3. MAINTENANCE (CONT’D)
3.2 ANNUAL MAINTENANCE
Proceed as the Quarterly Maintenance (Section 3.1), but before reinstalling the cleaned core, clean the supply side damper using
a vacuum cleaner and a soft brush attachment. Check if it can move freely. Then, clean the exterior hoods.
4.TROUBLESHOOTING
If the unit does not work properly:
AVS S10 ERVplus:Turn off the unit using its main control, reset the unit by unplugging it for one minute and then replug it.
AVS S10 ERV and S10c ERV: Turn off the unit using the integrated push-button, reset the unit by unplugging it for one minute
and then replug it.
All units: If it still not working properly, refer to table below.
PROBLEMS TRY THIS
1. On Altitude wall control, there
is no outside temperature
displayed on screen __.
• Atits verystart-up orafterapowerfailure,it takessome minutesbefore theoutside temperature value
appears on screen. Set the wall control on MIN or MAX in VENT mode.
• If the problem is not solved by the above, contact your installer.
2. On Altitude or Deco-Touch
wall control, error code E1 or
E3 appears on screen.
• Contact your installer.
3. Nothing works.• See if the unit is plugged in.
• See if the unit is receiving power from the house circuit breaker or fuse.
4. Condensation on windows
(air too humid).
• Operate the unit on maximum speed ventilation until the situation is corrected.
• Leave curtains half-open to allow air circulation.
• Store all firewood in a closed room with a dehumidifier or in a well ventilated room, or store the
wood outside.
• Do not adjust the thermostat of your heating system below 18°C (64°F).
5. Inside air too dry. • Temporarily use a humidifier.
• Operate the unit in recirculation mode (if available).
6. Air too cold at the air supply
grille.
• Check if the exterior hood(s) is (are) not blocked.
• Operate the unit in low speed ventilation or in intermittent or recirculation mode (if available).
• Install a duct heater.
7.
A. The LED of the integrated
control is blinking RED
(one blink every second).
• There is a problem with one of the motors. The unit is OFF. Contact your installer.
B. The LED of the integrated
control is blinking RED
(2 blinks per second,
faster blink).
• When outside temperature is colder than -25°C, it could be normal for the unit to enter in
Protection Mode. Unit exhaust air without entering fresh air for a 2-hour period, then resume to
its previous operation mode and stops flashing RED. If LED continues to flash RED when back
to previous mode, contact your installer.
8.
A. The LED of the integrated
control is blinking GREEN
(2 blinks every 2 seconds).
• There is a problem with the cold side thermistor. The unit is still working, but will defrost
frequently. Contact your installer.
B. The LED of the integrated
control is blinking GREEN
(2 blinks per second,
faster blink).
• There is a problem with the warm side thermistor. The unit is OFF. Contact your installer.
9. The LED of the integrated
control is blinking AMBER
(S10 ERVplus unit only).
• There is a problem with the damper system.
Contact your installer.
10. The push button on integrated
control or integrated defrost
control does not work.
• The 30-second boot sequence is not completed. According to the unit, see 2.1 or 2.2 on page 3.
• If the booting sequence is completed and the push button still doesn’t work, contact your installer.
14