Floor Console Heat Pump SENVILLE SENA R454B | 24000 BTU

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• Federal Rebate:
• Provincial Rebate: 2424$
• Energy Star®: Oui
• WiFi: En Option
• AHRI: 215735310
• Efficiency: 20.4 SEER
• Warranty (Compressor - Parts - Labor): 10-10-0
• Additional Warranty (10-10-10): Possible
• Voltage: 220V
• Sound Pressure Level (Outdoor): 61.5 dB(A)
• Gas (Freon): R-454B

A low-wall heat pump that completely changes the installation possibilities in a room that is difficult to cool

The 24,000 BTU SENVILLE SENA R454B floor console heat pump meets a need we regularly encounter in heating and cooling projects in Montreal, Laval, Longueuil, the North Shore, and the South Shore: the room requires substantial capacity, but the ideal location for a traditional wall-mounted head simply does not exist.

The reasons can be very practical. A room may have windows that extend almost to the ceiling, a sloped wall, a large patio door, a cathedral ceiling, built-in cabinets, or architecture that makes a wall-mounted unit unattractive. In these situations, a floor console allows the indoor unit to be installed much lower on the wall, in a configuration that resembles a modern convector more than a conventional wall-mounted heat pump.

The SENVILLE unit on this page uses:

• Outdoor unit: SENA-24HF-OG
• Indoor unit: SENA-24HF-IFG
• Family nominal capacity: 24,000 BTU
• AHRI: 215735310
• ENERGY STAR reference: 3630057
• Refrigerant: R-454B
• SEER2: 20.4
• EER2: 12.0
• HSPF2: 12.1
• Cold climate: yes
• Heating down to -30 °C
• Wi-Fi: optional
• Power supply: 208/230 V
• Maximum indoor airflow: approximately 577 CFM
• MCA: 25 A
• MOP: 25 A
• Outdoor sound level: 61.5 dB
• Indoor sound level: 34 to 51.5 dB depending on the speed
• Indoor dimensions: 42.05 × 26.57 × 9.25 in
• Outdoor dimensions: 37.24 × 16.14 × 31.89 in
• Additional warranty: available
• Indicated provincial rebate: $2,424, subject to the project’s actual eligibility.

Senville’s documentation does indeed present the SENA/24HF/IF as a Floor Mounted mini-split heat pump, meaning an indoor unit installed at the bottom of the wall, providing heating and cooling.

A floor console is not simply a wall-mounted heat pump installed lower down

The difference is not limited to its appearance.

The indoor unit is specifically designed for low-wall installation. Its body measures approximately 42 inches wide, 26.57 inches high, and only 9.25 inches deep.

This design allows it to be integrated into locations where a traditional wall-mounted head would be poorly suited, including:

• under certain windows;
• on a low wall;
• in an attic room;
• in an area where the upper part of the walls must remain clear;
• in a basement;
• in a room with a very high ceiling;
• in a space where air distribution from the lower level is preferred.

At AirGreen, we consider this format a genuine architectural alternative, not merely an aesthetic variation.

A particularly interesting solution beneath a sloped ceiling

Let us consider a typical scenario.

A bedroom located upstairs in a house on the South Shore has a sloped ceiling. It is impossible to install a wall-mounted head high enough without interfering with the ceiling slope. The opposite wall is occupied by a large window, while a third wall contains the closet doors.

A floor console can make it possible to use a lower section of the wall that would otherwise be difficult to utilize.

For this type of project, the choice of indoor unit addresses all of the following at once:

• space constraints;
• air distribution;
• aesthetics;
• access for maintenance.

20.4 SEER2 and ENERGY STAR certification

Senville indicates an efficiency of 20.4 SEER2 and an ENERGY STAR certification for this product family.

The technical table confirms:

• SEER2: 20.4
• EER2: 12
• HSPF2 region 4: 12.1
• HSPF2 region 5: 9.8
• Nominal COP: 3.34 W/W.

For a heat pump of this capacity, these values offer an interesting combination of cooling efficiency and seasonal heating performance.

Nevertheless, the nominal COP must be distinguished from low-temperature performance.

The COP of 3.34 is measured under a reference condition. It does not mean that the heat pump maintains the same efficiency at -15 °C or -30 °C.

Performance at -8 °C is much more useful for evaluating a Montreal winter.

The AirGreen data sheet indicates the following for this configuration:

At -8 °C:

• heating capacity: 20,200 BTU/h
• COP: 2.74

This performance point is particularly relevant to the Greater Montreal climate.

A COP of 2.74 means that under this condition, the system transfers approximately 2.74 units of heat for every unit of electricity consumed by the heat-pump cycle.

For a property heated primarily with electricity, this allows the heat pump to handle a significant share of the heating during a large part of the winter.

24,200 BTU at -15 °C according to the AirGreen configuration data

At -15 °C, the AirGreen data sheet indicates a capacity of 24,200 BTU/h.

This value is particularly interesting because it remains very close to the 24,000 BTU nominal class.

The Senville documentation provided does not include detailed capacity tables at -8 °C and -15 °C; however, it confirms that the system belongs to the cold-climate category and can operate in heating mode down to -30 °C.

When comparing this heat pump with another unit for a specific project, we therefore use the data for the exact match AHRI 215735310, rather than a simple nominal capacity indication.

At -30 °C: approximately 10,500 BTU and a COP of 1.33

The most useful figure for avoiding unrealistic expectations is the minimum temperature.

The SENVILLE can operate down to -30 °C, and the brochure confirms a minimum outdoor heating temperature of -22 °F / -30 °C.

At this temperature, AirGreen data indicates:

• capacity: approximately 10,500 BTU/h
• COP: 1.33

The difference between these two pieces of information is essential:

the heat pump still operates at -30 °C, but it no longer provides 24,000 BTU at that temperature.

This reality must be incorporated into the heating calculation.

In a room or zone whose heat losses exceed 10,500 BTU/h during extreme cold, another heat source must supplement the heat pump.

Why this capacity at -30 °C is still useful

A COP of 1,33 is still higher than a resistive electric heating system operating alone, which essentially converts one unit of electricity into one unit of heat.

The heat pump therefore continues to contribute to heating, even during extremely cold weather.

For an installation in Laval, Montreal, Longueuil, Terrebonne, Boucherville, or on the South Shore, this extends the period during which the compressor contributes to heating rather than leaving the entire load to baseboard heaters or a backup system.

The brochure gives 22,000 BTU for cooling and 26,000 BTU for heating.

One technical detail deserves explanation.

The AirGreen page presents the unit in the 24,000 BTU class, while the Senville technical table gives:

• cooling capacity: 22,000 BTU/h
• cooling range: 12,700 to 25,600 BTU/h
• heating capacity: 26,000 BTU/h
• heating range: 11,300 to 29,500 BTU/h.

This type of difference is normal in HVAC specifications.

“24,000 BTU” is a commercial capacity class, while certified capacities may differ depending on the operating mode and test conditions.

For proper sizing, we therefore never work solely with the figure stated in the product name.

Modulation reaching nearly 29,500 BTU in heating

The published range of up to 29,500 BTU/h in heating mode demonstrates the importance of inverter technology.

The heat pump can vary its output according to demand.

It is not limited to two states: off or 24,000 BTU.

When the load is low, it can reduce its output. When conditions require it, it can increase its capacity within the limits specified by the manufacturer.

This modulation can help:

• maintain a more stable temperature;
• reduce variations between cycles;
• limit certain repeated start-ups;
• adapt the heating to the room’s actual needs.

577 CFM maximum indoor airflow

The published airflow is:

• 576.8 CFM in Turbo mode
• 547.4 CFM at high speed
• 485.6 CFM at medium speed
• 420.8 CFM at low speed.

The 577 CFM value on the AirGreen specification sheet therefore corresponds to the unit’s maximum airflow.

This airflow is significant for a 24,000 BTU console, particularly when it has to serve a large open room.

Warm air rises from below: an interesting feature for heating

Heating from a low-mounted unit can be very comfortable.

Warm air naturally tends to rise. A floor console can therefore distribute heat from the lower part of the room rather than from the ceiling.

This can be particularly useful in:

• a living room with a cathedral ceiling;
• a large open room;
• a basement;
• a room with large glazed surfaces;
• a space where occupants remain seated for long periods.

The location must nevertheless be chosen carefully to avoid blowing air directly onto a sofa or workstation.

Automatic vertical louver and manual horizontal adjustment

The AirGreen specification sheet indicates:

• vertical louvers: automatic
• horizontal louvers: manual

This configuration makes it possible to adjust the airflow direction according to the room’s layout.

We recommend considering the orientation even before securing the unit.

A console installed too close to a piece of furniture or behind a sofa loses part of its advantage. The space in front of the air outlet must remain sufficiently clear.

Indoor sound level: 34 to 51.5 dB depending on the speed

The brochure states:

• 51.5 dB in Turbo mode
• 49 dB at high speed
• 45 dB at medium speed
• 34 dB at low speed.

The 34 dB figure is useful during periods when the load is moderate.

However, values measured at equivalent speeds must be compared when evaluating two models. A unit rated at 34 dB at low speed should not be directly compared with another measured only in maximum mode.

Dehumidification: 2.73 L/h, or approximately 5.77 U.S. pints per hour

The AirGreen specification sheet indicates dehumidification of 5.77 pt/h.

The brochure indicates 2.73 L/h.

These two figures are consistent: 2.73 litres correspond to approximately 5.77 U.S. pints.

This information is useful for summer air conditioning.

In Montreal, Laval, and Longueuil, some hot days are particularly humid. Effective air conditioning must not only lower the temperature; it must also remove humidity.

An indoor temperature of 23 °C with excessively high humidity can remain uncomfortable.

AirGreen installation: why the low placement, drainage, and R-454B must be considered together

The console does not need to be placed exactly on the floor

The term “floor console” primarily describes its format and low position.

It must be installed in accordance with the clearances specified by Senville, and its location must allow for:

• proper air intake;
• unrestricted airflow;
• access to the filter;
• maintenance;
• drainage;
• the refrigerant line route.

In our installations, we avoid placing the unit behind:

• a sofa;
• a bed;
• a dresser;
• a heavy curtain;
• a large plant.

A 24,000 BTU unit needs to move several hundred CFM. Blocking its intake or airflow directly reduces its efficiency.

An excellent option under certain windows, but not under just any window

The low-profile design can make the console an interesting option under a window.

However, it must be measured.

The indoor unit is approximately 26.57 in. high.

The required clearances must also be maintained.

In an older Montreal home where the bottom of the window is very close to the floor, the console may not fit.

We therefore measure the actual space rather than assuming that a floor console will fit everywhere under a window.

R-454B is clearly confirmed by the brochure

Senville documentation identifies the refrigerant as R-454B. It indicates a charge of 63.49 oz and a precharge covering 25 ft of piping.

Senville also specifies that the system is precharged for up to 25 ft and that a 50 ft kit requires refrigerant to be added on site by the installer.

This is important information when preparing a quote.

The actual length of the lines must be known before commissioning.

We never assume that old piping is automatically reusable

When replacing a system, a customer sometimes asks us to keep the existing lines to reduce the amount of work.

This may be possible for some projects, but only after verification.

We examine:

1. the diameter;
2. the length;
3. the condition of the lines;
4. the old refrigerant;
5. the route;
6. the new model’s requirements.

For this configuration, the final piping dimensions must be confirmed in the installation documentation corresponding exactly to the SENA-24HF-OG + SENA-24HF-IFG pairing.

MCA and MOP of 25 A: a point to check at the electrical panel

The technical table indicates:

• MCA: 25 A
• maximum fuse: 25 A.

The system operates at 208/230 V single-phase, 60 Hz.

This means that an adequate circuit must be available.

Before installation, we check the panel capacity and required circuit rather than waiting until the workday to discover that an additional electrical modification is necessary.

The outdoor unit is considerably larger than that of a small 12,000 BTU unit

Its dimensions are:

37.24 × 16.14 × 31.89 in

and weighs approximately 130.29 lb.

The maximum outdoor airflow reaches 2,236.7 CFM.

This unit must therefore have sufficient space around the heat exchanger.

We avoid locations that are too confined between two walls or behind structures that would restrict airflow.

61.5 dB outdoors

The published outdoor sound level is 61.5 dB.

The location must therefore be carefully considered based on:

• bedroom windows;
• neighbors;
• decks;
• reflective walls;
• property lines.

An outdoor unit may seem louder in a narrow passage between two buildings than in an open area.

Drainage must be planned as it would be for any heat pump

In cooling mode, the indoor unit removes moisture from the air and produces condensate.

The drain must be installed with an adequate slope when gravity drainage is used.

We want to avoid:

• backflow;
• standing water;
• leaks;
• odors;
• unnecessarily added pumps.

A floor console can sometimes make drainage easier because it is located lower than a wall-mounted head, but the outdoor exit point must still be evaluated.

ENERGY STAR and AHRI 215735310

Senville confirms this unit’s ENERGY STAR certification as well as its 20.4 SEER2 efficiency rating.

The AirGreen product sheet identifies the match under:

• AHRI 215735310
• ENERGY STAR 3630057

These are the references that become important when we verify the criteria for a financial assistance program.

A provincial rebate listed at $2,424

The AirGreen product sheet indicates a provincial incentive of 2 424 $ for this configuration.

The actual amount must always be confirmed according to the criteria applicable to the project at the time of installation.

We notably verify:

• the exact model;
• the AHRI match;
• the type of residence;
• the program rules;
• the required documents;
• the installation date.

For a customer comparing several heat pumps in Montreal or on the South Shore, the rebate can significantly change the project’s net cost. It should therefore be included in the comparison, but only after eligibility has been confirmed.

Optional Wi-Fi

The configuration includes optional Wi-Fi.

This feature may allow the setpoint or schedule to be adjusted remotely, depending on the installed module.

It is appealing, but we consider it a secondary benefit.

The choice of a heat pump should first be guided by:

• capacity;
• low-temperature performance;
• location;
• noise level;
• sizing;
• installation quality.

A mobile app cannot compensate for a poorly positioned or improperly sized unit.

Self-diagnostics and leak detection

Senville mentions integrated diagnostic and leak-detection functions designed to flag certain issues and facilitate maintenance.

These tools can be useful during a service call.

However, they do not replace measurements taken by a technician.

A comfort problem may result from:

• of the refrigerant;
• of the airflow;
• of the filter;
• of the drain;
• of the controller;
• of the temperature sensor;
• of improper outdoor installation.

Warranty: 10 years on the compressor and 5 years on parts in the attached documentation

The AirGreen product sheet mentions a 10-10-0 manufacturer’s warranty as well as the possibility of an additional warranty.

The attached Senville brochure states:

• 10 years on the compressor
• 5 years on parts.

The technical table also repeats this coverage.

Senville also specifies that professional installation is required to maintain the expected coverage and performance.

We therefore always confirm the exact warranty terms applicable to the delivered and registered equipment.

In which rooms does the 24,000 BTU floor console really make sense?

This configuration may be particularly well suited to:

• a large open-plan area;
• a finished basement;
• a room with a sloped ceiling;
• a loft;
• a living room with lots of glazing;
• an addition;
• a commercial office;
• a room where the upper part of the walls is unavailable.

It therefore combines several advantages:

• 24,000 BTU class
• 20.4 SEER2
• 12.1 HSPF2
• heating down to -30 °C
• R-454B
• indoor airflow of up to 577 CFM
• ENERGY STAR certification
• low installation
• Optional Wi-Fi
• possibility of a financial incentive indicated at 2 424 $

When a Wall-Mounted Head May Still Be Preferable

The console is not automatically the best choice.

A wall-mounted head may make more sense when there is a clear wall high up and you want to project air over a long distance from the top of the room.

The console becomes particularly appealing when:

• the upper part of the walls is unusable;
• a lower installation is preferred;
• the room’s architecture is suitable;
• low-level heating is desired.

We therefore choose the type of indoor unit based on the building, not just the compressor capacity.

Why AirGreen Looks at the Room First Before Recommending the Unit Type

At AirGreen Air Conditioning & Heating, we do not assume that a wall-mounted head is always the default solution.

For each project, we consider:

• available walls;
• windows;
• furniture;
• ceiling height;
• air circulation;
• drainage;
• the length of the lines;
• the outdoor location;
• the requirements at -8 °C, -15 °C, and during extreme cold.

This is particularly important with this 24,000 BTU SENVILLE floor console, because its main advantage lies precisely in situations where a traditional wall-mounted unit does not integrate well.

Contact AirGreen for your 24,000 BTU SENVILLE SENA floor console

Are you considering a SENVILLE SENA R454B 24,000 BTU floor console heat pump for your house, condo, basement, or commercial space?

Contact AirGreen for a project assessment. We can verify the required capacity, the ideal console location, the electrical circuit, the refrigerant line routing, drainage, the outdoor unit, and eligibility for financial incentives.

We carry out heat pump installations in Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie, with particular attention to sizing, indoor unit integration, and winter performance.