Venmar K7 HRV Use and care manual

21775 rev. 03
VB0139
INSTALLER: READ THESE INSTRUCTIONS
SAVE THEM FOR USER
RESIDENTIAL USE ONLY
USER AND INSTALLER MANUAL
K7 HRV (PART NO. 44150) 40H (PART NO. 44250)

2
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.
CAUTION
Denotes 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.
LIMITATION
For residential (domestic) installation only. Installation work and electrical wiring must be done by a qualified person in accordance with all
applicable codes and standards, including fire-rated construction codes and standards.
⚠WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON(S) OBSERVE THE FOLLOWING:
1. Use this unit only in the manner intended by the manufacturer.
2. Before servicing or cleaning this unit, disconnect power cord from electrical outlet.
3. This unit is not designed to provide combustion and/or dilution air for fuel-burning appliances.
4. When cutting or drilling into a wall or ceiling, do not damage electrical wiring and other hidden utilities.
5. Do not use this unit with any solid-state speed control device other than those specified in section 6.1.
6. This unit must be grounded. The power supply cord has a 3-prong grounding plug for your personal safety. It must be plugged into a
mating 3-prong grounding receptacle, grounded in accordance with the national electrical code and local codes and ordinances. Do
not remove the ground prong. Do not use an extension cord.
7. Do not install in a cooking area or connect directly to any appliances.
8. Do not use to exhaust hazardous or explosive materials and vapors.
9. When performing installation, servicing or cleaning this unit, it is recommended to wear safety glasses and gloves.
10. When applicable local regulation comprises more restrictive installation and/or certification requirements, the aforementioned
requirements prevail on those of this document and the installer agrees to conform to these at his own expenses.
CAUTION
1. To avoid prematurely clogged filters, turn the unit OFF during construction or renovation.
2. Please read specification label on product for further information and requirements.
3. Be sure to duct air outside – Do not intake/exhaust air into spaces within walls or ceiling or into attics, crawl spaces, or garage. Do not
attempt to recover the exhaust air from a dryer or a range hood.
4. Intended for residential installation only in accordance with the requirements of NFPA 90B (for a unit installed in U.S.A.) or Part 9 of
the National Building Code of Canada (for a unit installed in Canada).
5. Do not run any air ducts directly above or within 2 ft (0.61 m) of a furnace or its supply plenum, boiler, or other heat producing
appliance. If a duct has to be connected to the furnace return plenum, it must be connected 10’ (3.1 m) away from plenum’s connection
to the furnace.
6. The ductwork is intended to be installed in compliance with all applicable local and national codes.
7. 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.
8. If the ductwork passes 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).
9. At least once a year, the unit mechanical and electronic parts should be inspected by qualified service personnel.
10. Do not use your unit during construction or renovation of your house or when sanding drywall. Certain types of dust and vapors may
damage your system.
11. 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 turn the unit OFF for a few hours.
12. Since the electronic control system of the unit uses 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.
⚠WARNING

3
PRODUCT REGISTRATION CARD - FICHE D’ENREGISTREMENT DU PRODUIT
Country – Pays E-mail address – Courriel Language preferred – Langue de correspondance
Address – Adresse Apt. no. – App. City – Ville Province Postal code – Code postal
First name - Prénom Last name – Nom de famille
Model no.– N
o
de modèle Serial – N
o
de série
BACK / VERSO
Centre d’enregistrement de produit - Product registration center, 550 boulevard Lemire, Drummondville, Québec Canada J2C 7W9
IMPORTANT: Please complete and return this questionnaire within 10 days of your purchase to the address below. Note that only the questions on this side of the page are
mandatory. Your answers will be used for market research studies and reports, and will help us to better serve you in the future. IMPORTANT: Veuillez remplir ce questionnaire
et nous le retourner dans les 10 jours suivant votre achat à l’adresse inscrite en bas de la page. Veuillez noter que seules les questions de ce côté-ci de la page sont obligatoires.
Vos réponses serviront à des études de marché et nous aideront à mieux vous servir dans l’avenir.
Date of purchase – Date d’achat
//
Telephone (day) –N
o
de téléphone (jour)
--
Telephone (evening) – N
o
de téléphone (soir)
--
no.
no.
no.

TABLE OF CONTENTS
FOR THE USER ..............................................................................................................4
1. USING THIS UNIT ........................................................................................................................4
1.1 Your ventilation system.............................................................................................................................................4
1.2 Integrated Control.....................................................................................................................................................4
2. MAINTENANCE............................................................................................................................5
2.1 Quarterly Maintenance............................................................................................................................................5
2.2 Annual Maintenance................................................................................................................................................5
3. USER’S TROUBLESHOOTING....................................................................................................5
4. WARRANTY..................................................................................................................................6
FOR THE INSTALLER .....................................................................................................7
5. INSTALLATION.............................................................................................................................7
5.1 Locating the Unit .....................................................................................................................................................7
5.2 Installing the ductwork and registers .......................................................................................................................7
5.2.1 Fully ducted system...............................................................................................................................................................7
5.2.2 Central draw point system - Supply Side...............................................................................................................................8
5.2.3 Central draw point system - Return Side...............................................................................................................................8
5.3 Installing the Exterior Hoods ...................................................................................................................................9
5.4 Installing Dual Exterior Hood Using Tandem®* Transition Kit (optional)..................................................................9
5.5 Connecting the Ducts to the Unit...........................................................................................................................10
5.6 Connecting the Drain.............................................................................................................................................10
6. CONTROLS ................................................................................................................................11
6.1 Optional Controls................................................................................................................................................... 11
6.2 Electrical connection to optional control ................................................................................................................ 11
7. SERVICE PARTS.........................................................................................................................12
8. WIRING DIAGRAM .....................................................................................................................13
9.TROUBLESHOOTING ................................................................................................................14

4
For the User
1. USING THIS UNIT
1.1 YOUR VENTILATION SYSTEM
Your HRV is designed to provide fresh air to your home while exhausting stale, humid air. By eliminating accumulated pollutants and
humidity, it maintains an optimum air quality and an ideal relative humidity. It is equipped with a heat recovery core that is designed
specifically to control excess humidity and reduce ventilation costs by recovering the heat energy from the exhausted air, and using that
same heat energy to warm the fresh air being supplied. This heat recovery process is accomplished in such a way that the stale air is
never mixed with the fresh air.
When the outdoor temperature is below -5°C (23°F), heat recovery creates frost in the module. To maintain proper operation, the unit
is programmed to defrost the recovery module. The defrost duration and frequency vary according to the outdoor temperature. After
defrosting, the unit returns to the operating mode selected by the user.
Before using this unit for the first time, please take the time to carefully read page 2 of this guide to ensure it is
used safely and properly.
CAUTION
What problem were you trying to solve with
your purchase? (Check each one that applies
to you.)
Bad odors
Respiratory
problems
Excess of humidity
Temperature
standardization
Lack of fresh air
Dust
Mildew
Allergies
No specific
problems
Others
Who installed your unit?
Home builder
Recommended
installer
Friend / family
Contractor
Yourself
Please read the following list of criteria
carefully. Indicate the importance of your
purchase decision on a scale of 1 (less
important) to 5 (most important).
Price
Warranty
Product design
Ventilation
capacity
Filter maintenance
indicator
Filtration quality
Recirculation
Heat recovery
Controls
Ease of cleaning
Manufacturer’s
reputation
Ease of use
Noise level
Other
Quels problèmes essayez-vous de résoudre
par cet achat? (Cochez toutes les cases
pertinentes)
Mauvaises odeurs
Problèmes
respiratoires
Excès d’humidité
Uniformisation
de la température
Manque d’air frais
Poussières
Moisissures
Allergies
Pas de problèmes
spécifiques
Autres (Précisez SVP)
Qui a installé l’appareil?
Constructeur
de la maison
Installateur
recommandé
Ami/membre
de la famille
Entrepreneur
Vous-même
Veuillez lire la liste des critères de sélection
ci-dessous. Sur une échelle de 1 (étant le moins
important) à 5 (étant le plus important), veuil-
lez indiquer l’importance de chacun d’entre
eux dans votre décision d’achat.
Prix
Garantie
Design du produit
Débit de
ventilation
Indicateur
d’entretien du filtre
Qualité de filtration
Recirculation
Récupération
de chaleur
Récupération
d’énergie
Fonctions
Facilité de
nettoyage
Réputation
du fabricant
Simplicité
d’utilisation
Niveau de bruit
Autres
(Précisez SVP)
Would you like to receive occasional informational e-mail offers including
product updates and special promotions from us?
Yes/No
Aimeriez-vous recevoir plus de détails sur nos promotions, offres de rabais et mises à jour
de nos produits?
Oui/Non
Are you connected? Please do not hesitate to complete the product registration
card via our Web site at www.bnv.ca
Enregistrez-vous en ligne! N’hésitez pas à remplir la fiche d’enregistrement
du produit sur notre site Internet au www.bnv.ca

1.2 INTEGRATED CONTROL
Unit Booting Sequence
The unit’s booting sequence is similar to a personnal computer’s booting sequence. Each time the unit is plugged in after being unplugged,
or after a power failure, it will perform a 30-second booting sequence before starting to operate. No command will be taken until the
unit is fully booted.
This unit is equipped with an integrated control, located on its upper left side.
• At plug in, the unit is in Standby.
• Use the push-button to alternate between Standby and Low Speed.
• Use an optional auxiliary control to set the unit in High Speed.
For more convenience, this unit can also be controlled using an optional wall control.
For more information about their operation modes, refer to the Main and auxiliary wall
control User Guide, included with the ventilation unit and also available at www.vanee.ca or
www.venmar.ca. VD0241
PUSH-BUTTON
Risk of electrical shocks. The unit CANNOT be turned off using its push-button control. Before performing any
maintenance or servicing, always disconnect the unit from its power source.
⚠WARNING

5
For the User
2. MAINTENANCE
2.1 QUARTERLY MAINTENANCE
1. Unplug the unit.
2. Remove the unit door by following these steps:
A. Remove both door lower mechanical screws no. 8-32 x 1” (1) and set
aside.
B. Open (2) and lift out the door (3)
3. Slide out both filters (4) from the unit.
4. Slide out the core (5) from the unit.
5. Clean the inside walls of the unit with a clean damp cloth, then wipe with
a clean dry one.
6. Wash both core filters under lukewarm water with mild soap. Rinse
thoroughly and let dry completely before reinstalling on the core.
7. Remove the dust on the core using a vacuum cleaner and a soft brush
attachment.
8. Slide the cleaned core and filters into the unit.
9. Reinstall the door. Secure it with both mechanical screws no. 8-32 x 1” previously
removed and plug the unit. The unit will return to its previous setting after a
30-second boot sequence.
2.2 ANNUAL MAINTENANCE
Perform Quarterly Maintenance up to step 6, then perform the following:
1. Allow the core to soak for 3 hours in a solution of lukewarm water and mild liquid soap.
2. Rinse it thoroughly and shake it to remove excess water. Allow to dry and reinstall.
3. Clean the exterior hoods.
VO0191
12
3
AB
VD0243
4
5
Follow the instructions on the core label to reinstall it correctly.
CAUTION
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. USER’S TROUBLESHOOTING
Contact customer service at 1-800-567-3855 for any unresolved issue.
PROBLEMS TRY THIS...
Nothing works.
• Make sure that the unit is plugged in.
• Make sure that the unit is receiving power from the house circuit breaker.
• Press once on the unit’s integrated push button to make sure unit is not in Stanby mode (see section 1.2)
Condensation on
windows.
(Air too humid.)
• If possible, turn the unit in high speed 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 outdoors.
• Do not adjust the thermostat of your heating system below 18°C (64°F).
Inside air too dry. • Temporarily use a humidifier.
Air too cold at the
air supply grille.
• Do not adjust the thermostat of your heating system below 18°C (64°F).
• Make sure that the exterior hood is not blocked.
• Turn the unit in low speed.
• Install a duct heater (contact your installer)