Venmar X24 HRV ECM User manual

USER GUIDE
HEAT RECOVERY VENTILATORS MODELS
X24 HRV ECM AND X30 HRV ECM AND
ENERGY RECOVERY VENTILATOR MODELS
X24 ERV ECM AND X30 ERV ECM
Venmar Ventilation ULC, 550 Lemire Blvd., Drummondville, QC, Canada J2C 7W9
www.venmar.ca
These products earned the
ENERGY STAR® by meeting strict
energy efficiency guidelines set by
Natural Resources Canada and the
US EPA. They meet ENERGY STAR
requirements only when used in
Canada.
22138 rev. 01
VB0185
PLEASE READ AND SAVE THESE INSTRUCTIONS
INSTALLER: LEAVE THIS MANUAL WITH HOMEOWNER

Congratulations!
You have made an excellent choice! The operating principle of your Heat Recovery Ventilator
or your Energy Recovery Ventilator will give you personal comfort you have never known
before.
We have prepared this User Guide especially for you. Please read it carefully to ensure you
obtain full benefit from your unit. Over the coming months, you will increasingly appreciate the
feeling of living in a more comfortable house.
Please take note that this manual uses the following symbols to emphasize particular
information:
Identifies an instruction which, if not followed, might cause serious
personal injuries including possibility of death.
Identifies an instruction which, if not followed, may severely damage the
unit and/or its components.
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
Make sure at all times that the outdoor 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 the recirculation mode, 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.
2
WARNING
!
CAUTION
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). At least once a year, the unit mechanical and electronic
parts should be inspected by qualified service personnel.
CAUTION

TABLE OF CONTENTS
3
1. DEFROSTING MODE . . . . . . . . . . . . . . . . . . . . . . . 4
2. BOOTING SEQUENCE . . . . . . . . . . . . . . . . . . . . . . . 4
3. MAIN AND AUXILIARY CONTROLS . . . . . . . . . . . . . . . . . . 4
4. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
4.1 REGULAR MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 ANNUAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . 6-7
5.TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 8
REPLACEMENT PARTS AND REPAIR
In order to ensure your ventilation unit remains in good working condition, you must use
Venmar Ventilation ULC genuine replacement parts only. Venmar Ventilation ULC 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
ULC also recommends to contact a Venmar Ventilation ULC certified service depot for all
replacement parts and repairs.

1. DEFROSTING MODE
4
When the outdoor temperature is below -5°C (23°F), recovery of heat in HRV units creates
frost in the core. For ERV units, when the outdoor 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 recovery core. The
defrost frequency varies according to the outdoor temperature.
During the defrost cycle, the dampers of the unit close and the unit speed can be set on high
or low, according to your needs, using the X-Touch main wall control. Refer to the Main and
auxiliary wall controls user guide (included with your unit and also available at www.venmar.ca)
for more details.
After defrosting, the unit returns to the operating mode selected by the user.
2. BOOTING SEQUENCE
The unit and X-Touch wall control booting sequence is similar to a personal computer booting
sequence.
Each time the unit is plugged after being unplugged, or a power failure occurs, the unit will
perform a 30-second booting sequence before starting to operate.
During the booting sequence, the unit is checking and resetting the motorized damper
position, while the X-Touch wall control screen displays 5%, 10%, 15%, etc. (up to 100%).
Once the motorized damper position completely set, the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.
3. MAIN AND AUXILIARY CONTROLS
The only main control compatible with these units is the X-Touch (purchase separately).
Only one main control can be connected per unit.
Up to five 20/40/60-minute push button auxiliary controls can be used.
NOTE: When used, the 20/40/60 minute activation will
override the X-Touch operation, as well as the unit
defrost cycle. The chronometer icon appears on
X-Touch screen as long as the 20/40/60 minute is
activated.
For more information about your unit controls, refer to the Main and auxiliary wall controls
user guide (included with your unit and also available at www.venmar.ca).
CONT

5
4. MAINTENANCE
Refer to illustration below to identify the inner parts of your unit (unit door removed to ease
understanding).
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
!
VD0382
1) HRV or ERV core
2) Core filters
1) ERV core
2) Core filters
11
22
These units need regular and annual maintenances.
When the maintenance icon flashes on X-Touch main wall control
screen, perform the maintenance. The maintenance icon should
flash about 4 times a year (3 regular maintenance and one annual
maintenance per year).
CONT
Maintenance icon

6
4. MAINTENANCE (CONT’D)
4.2 ANNUAL MAINTENANCE
Perform steps 1 and 2 of the Regular Maintenance (Section 4.1), then continue with the
following steps:
4.1 REGULAR MAINTENANCE
1. Unplug the unit.
2. Lift both top and bottom door latches, then open the unit
door.
NOTE: If space in front of unit is limited, lift up the door to
disengage it from its hinges and set it aside.
3. Slide out both filters from the top of the recovery core.
4. Wash both core filters under lukewarm water with mild soap. Rinse thoroughly and let
dry completely before reinstalling on the core.
5. Slide the cleaned filters into the unit.
6. Close the door and plug back the unit.
NOTE: The unit will return to its previous setting after a 30-second delay for booting
sequence.
7. Reset the Maintenance Indicator by pressing simultaneously on both
MODE and TURBO keys for 3 seconds on X-Touch main wall control;
this will erase the maintenance icon from the screen.
VD0383
3. Slide out both filters (3) and recovery
core (4) from the unit.
4. Clean the inside walls of the unit with a
damp cloth, then wipe with a clean dry
one.
5. Wash both core filters under lukewarm
water with mild soap. Rinse thoroughly
and let dry completely.
VD0384
34
MODE

TURBO

AND
3 sec.

7
4. MAINTENANCE (CONT’D)
7. Slide the cleaned core into the unit.
8. Slide the cleaned filters into the unit.
9. Close the unit door.
10. Clean the exterior hoods, then plug back the unit.
NOTE: The unit will return to its previous setting after a 30-second delay for booting
sequence.
11. Reset the Maintenance Indicator by pressing simultaneously on both
MODE and TURBO keys for 3 seconds on X-Touch main wall control;
this will erase the maintenance icon from the screen.
4.2 ANNUAL MAINTENANCE (CONT’D)
HEAT RECOVERY CORE CLEANING ENERGY RECOVERY CORE CLEANING
Allow the recovery core to soak for 3 hours
in a solution of warm water and mild soap
(liquid soap).
Rinse lightly, let dry and reinstall.
Remove the dust on the core using
a vacuum cleaner and a soft brush
attachment.
CAUTION
Do not soak the energy recovery core in water.This core can easely be
damaged especially if it is soaked.
6. Clean the core (refer to table below).
MODE

TURBO

AND
3 sec.

8
5.TROUBLESHOOTING
PROBLEMS TRY THIS
1. Nothing works.• See if the unit is plugged in.
• See if the unit is receiving power from the house
circuit breaker or fuse.
2. An error code starting
with E0 (E01, E02, etc.) is
displayed on X-Touch wall
control screen.
• Ensure that the color coded wires have been
connected to their appropriate place.
• Ensure that the wires are correctly connected.
• Press and hold simultaneously for 10 seconds on
% HUM, MODE and TURBO keys to reset the wall
control. The user preferences will have to be reset.
3. An error code starting
with E2 (E21, E22, etc.) is
displayed on X-Touch wall
control screen.
• Problem with the ventilation unit.
Contact your installer.
4. A 10-second countdown is
displayed on X-Touch wall
control screen.
• Wait until the end of the countdown,
without pressing any key.
5. The snowflake icon is
flashing on X-Touch wall
control screen.
• The ventilation unit is in Protection mode; it will get
out of this mode by itself.
• If this situation occurs regularly, or when outdoor
temperature is higher than -20°C, contact your installer.
6. Condensation on windows
(air too humid).
• Operate the unit on TURBO or CONT mode until the
situation is corrected.
• Leave curtains half-open to allow air circulation.
• Store allfirewoodinaclosedroomwithadehumidifier
or in a well ventilated room, or store the wood outdoors.
• Do not adjust the thermostat of your heating system
below 18°C (64°F).
7. Inside air too dry. • Temporarily use a humidifier.
• Operate the unit in 20 min/h mode or in RECIRC. mode.
8. Air too cold
at the air supply grille.
• Check if the exterior hoods are not blocked.
• Operate the unit in 20 min/h mode or in RECIRC.
mode.
• Install a duct heater.
9. The X-Touch main control
does not work.
• The 30-second boot sequence is not
completed. See Section 2 on page 4.
• A 20/40/60-minute push button auxiliary
control is in use. See Section 3 on page 4.
• TheprotectionmodeoverridestheX-Touchoperation
(snowflake icon). Refer to point 5.
If the problem is still not solved, call your installer or the nearest approved Service Center.
Also, you can reach the Customer Service Department at the following phone number:
1-800-567-3855.
If the unit does not work properly, reset the unit by unplugging and then replug it. If it
still not working properly, refer to table below.