Installation of a vänEE HRV 60H air exchanger (model 41600, side ports) in Saint-Chrysostome, in Haut-Saint-Laurent

Twelve inches of height: the unit that disappears into a dropped ceiling

The mandate in Saint-Chrysostome involved an architectural constraint, not a mechanical one. The homeowners had just finished renovating the basement. Finished ceiling, painted drywall, recessed lighting—and only one place to route a central air exchanger without opening anything back up: the dead space above a storage area, within an existing dropped ceiling with about a foot of clearance.

This available height immediately rules out most HRVs on the market. The vänEE HRV 60H fits because its side-port cabinet measures 12 3/16 in. high, 27 1/16 in. wide, and 19 13/16 in. deep. It is a format designed precisely for this situation: a dropped ceiling, utility closet, or space above a water heater. At AirGreen, we regularly use it in condos in Montreal and finished basements on the South Shore for the same reason.

What the unit actually delivers

The 60H belongs to the Bronze series from vänEE, designed for small- to medium-sized single-family homes and high-rise units where mechanical space is limited. Its nameplate data, taken from the manufacturer's documentation:

ASE and SRE: two figures that are often confused

The manufacturer's catalogue states 74% for the 60H. This figure is an apparent sensible efficiency (ASE), not a sensible recovery efficiency (SRE). The difference is not cosmetic.

• ASE measures heat transfer at the core, without subtracting the energy consumed by the fans or losses from the cabinet.
• SRE is the net measurement standardized by HVI. It is the figure used for comparisons between units and for energy-efficiency programs.

A unit rated at 74% ASE operates at around 60 to 65% SRE. Comparing one model's ASE with another's SRE completely distorts the evaluation—and that is exactly what many online product sheets do. We always bring the discussion back to SRE when a client compares two quotes.

Ceiling mounting: suspension by chains and springs

The 60H is suspended using integrated hooks, chains, and springs supplied with the unit. In a finished room, this detail becomes central: the ceiling bulkhead acts as a resonance chamber, and two motors running continuously a few inches from the drywall can be heard throughout the room if the mounting is rigid.

The anchors were screwed into the structure, never into drywall alone, and the chain lengths were adjusted to leave a slight amount of play at the spring. A fully compressed spring no longer isolates anything.

Level was checked before final tightening. On the 60H, condensate produced by the core flows toward the drain connections beneath the cabinet: a unit that tilts a few degrees backward retains water inside instead of draining it.

Drainage, in three parts

Under the unit, two drain connections receive flexible tubes that join through a plastic tee, then slope down toward the drain. The drain connection kit is a vänEE service part identified in the catalogue (ref. 03203), simplifying replacement if the connection cracks over the years.

Two rules govern this setup:

1. Prime the traps by pouring water into the tubes before commissioning. An empty trap allows the exhaust fan to draw air through the drain.
2. Avoid any low points along the horizontal run. A sag in the flexible tube collects water, slows drainage, and eventually forces it back into the cabinet.

Manual balancing: what the 60H requires and newer units automate

This is where this project differs from installations of newer-generation units. The 60H does not self-calibrate. It is balanced the old-fashioned way, using two tools integrated into the cabinet:

• integrated balancing dampers on the oval ports, manually adjustable;
• pressure taps connected to an inclined or digital manometer.

The procedure, carried out after all ducts have been fully connected and the exterior covers installed:

1. Set the unit to high speed and let it stabilize.
2. Connect the manometer to the pressure taps on the fresh-air intake circuit, read the pressure, and convert it to cu ft/min using the table in the manual.
3. Repeat on the stale-air exhaust circuit.
4. Gradually close the register on the stronger circuit until the two airflows match.
5. Check at low speed, then record the values obtained on a label affixed near the unit.

Step 5 is the one we never skip. Balancing an HRV without documentation forces the next technician to start over and leaves the owner with no point of comparison during maintenance.

The balancing errors we correct most often

• Balancing with the registers fully open. Without adjustment, the less resistant circuit takes over, leaving the house permanently depressurized or overpressurized.
• Measuring before installing the exterior hoods. A wall hood adds real resistance. Measurements taken without it are worthless.
• Using a measuring tape instead of the manometer. The number of register turns has no value: two circuits of different lengths do not respond in the same way.
• Forgetting to retest after replacing the filter with a more restrictive model. The 60H is designed for 30 ppi washable foam; substituting a commercial pleated filter changes the unit's performance curve and invalidates the balancing.

The ducts and power supply

All four connections use 5-inch insulated flex duct, routed to the oval collars through oval-to-round transitions tightened at the collar and then sealed with aluminum tape.

On this type of duct, finishing the vapor barrier at the collar is the critical step: the insulation must be brought up to the collar and the outer jacket closed over it, then sealed. An open vapor barrier exposes the insulation to ambient air, loads it with moisture, and turns the section into a condensation bridge as soon as the first cold weather arrives.

The unit is connected to a dedicated 120 V outlet installed in the ceiling, in the immediate vicinity. We systematically refuse three connection methods: an extension cord, an outlet controlled by a wall switch, and sharing a circuit with a freezer or an appliance that starts frequently. An HRV must run continuously; any outlet that someone can accidentally switch off will eventually be switched off.

You already own a 60H: what you need to know

Thousands of homes in Quebec are equipped with this unit. Service parts remain listed in the vänEE catalog, which considerably extends its useful life:

• HRV foam filters (ref. 16032) — wash every three months and replace when they begin to crumble.
• Heat-recovery core (ref. 16034 for units manufactured before 2010, ref. 18300 for the blue core used in units manufactured from 2010 onward).
• Motorized damper / port assembly (ref. 16029) — the component responsible for the Homeshield cycle. A seized damper shows up as frost on the core in January.
• Oval ports and balancing dampers (ref. 16041), electronic control board (ref. 16038), transformer, magnetic door switch (ref. 19060).

The decision rule we apply is this: as long as the core, motors, and motorized damper are in good condition, a maintained 60H remains a suitable unit. When two of these three components fail in the same year, the calculation shifts toward replacing it with a model featuring ECM motors and automatic balancing — significantly more energy-efficient during continuous operation.

Financial assistance programs: the key nuance to remember

An air exchanger installed on its own generally does not qualify, in Quebec, as a standalone measure eligible for financial assistance. Provincial energy-efficiency programs assess the building as a whole and direct assistance toward the building envelope — insulation and air sealing — while mechanical ventilation is treated as an indoor-air-quality requirement accompanying this work. Criteria change from year to year, and we verify eligibility on a case-by-case basis when preparing the quote rather than promising an amount.

What this Saint-Chrysostome project teaches homeowners in Haut-Saint-Laurent

The value of an HVAC installation is not found on the unit's technical data sheet. It is found in the ceiling drop where the unit fits without being heard, in the primed trap that did not freeze in February, and in the two numbers written in felt-tip pen on a label affixed to the cabinet.

The vänEE HRV 60H model 41600 was suitable here for one specific reason: 12 inches high, 39 to 98 ft³/min, 43 W at low speed, integrated balancing dampers, and a lifetime-covered core. In a larger home or a new build pursuing energy certification, our recommendation would start with a higher-capacity unit equipped with ECM motors.

At AirGreen, we handle HVAC installation and HVAC maintenance for air exchangers, heat pumps, and wall-mounted air conditioners in Montreal, Laval, Longueuil, on the North Shore, on the South Shore, and in the municipalities of Haut-Saint-Laurent. Every unit we commission leaves with its airflow rates measured, recorded, and explained to the owner.