514-316-2973
sales@airgreen.ca
Senville Pro Partner · Authorized dealer/installer
Senville’s 4-way and 1-way cassettes, seen from the ceiling.
Nothing on the wall: the cassette sits in the ceiling cavity and only its panel shows. Here are the eight Senville cassettes we sell, with what each one asks of the ceiling (the cut-out, the clear depth, how high the pump can lift the water) and what their certificates say about winter and LogisVert.
Updated October 26, 2026 · Senville manuals and spec tables, ENERGY STAR, NEEP, Hydro-QuébecOpenings published in Senville’s manuals, drawn to the same scale. Dashed: 4-way panel (620 and 950 mm). 1-way panel: not published.
This page answersFor a room where nothing should go on the wall and the ceiling has room: 4-way or 1-way, the hole to cut and the depth to allow, the pump that lifts the water, then the certified heat down to −30 °C and the LogisVert amount of each size.
On our product pages, the indoor unit code ends in ICG for a 4-way and in 1WCG for a 1-way.
Three sections to the same scale, drawn from the dimensions Senville publishes: the cut-out, the body height, the clear space required above the ceiling and the highest point the condensate lift pipe may reach. Where Senville publishes nothing, the section says so.
| Opening | 600 × 600 mm (23.6 in) |
|---|---|
| Body, W × D × H | 570 × 570 × 245 mm22.44 × 22.44 × 9.65 in |
| Panel | 620 mm square (24.4 in)thickness not published |
| Clear space above the ceiling | more than 290 mm (11.4 in) |
| Bottom of the body | 10 to 25 mm above the ceiling |
| Condensate | built-in pump and float switch; lift pipe at most 75 cm above the ceiling and at most 30 cm from the unit, then a slope of at least 1/100 |
| Opening | 900 × 900 mm (35.4 in) |
|---|---|
| Body, W × D × H | 830 × 830 × 205 mm32.68 × 32.68 × 8.07 in |
| Panel | 950 mm square (37.4 in)thickness not published |
| Clear space above the ceiling | more than 230 mm (9.06 in) |
| Bottom of the body | 10 to 25 mm above the ceiling |
| Condensate | built-in pump and float switch; lift pipe at most 75 cm above the ceiling and at most 30 cm from the unit, then a slope of at least 1/100 |
| Opening | 430 × 1,300 mm16.93 × 51.18 in |
|---|---|
| Body, as printed | 50.31 × 13.19 × 8.98* unit not printed by Senville; read as inches: 1,278 × 335 × 228 mm, not confirmed |
| Panel | not published |
| Clear space above the ceiling | not published |
| Bottom of the body | not published |
| Condensate | built-in pump; lift pipe at most 75 cm above the ceilingdistance from the unit and slope: not confirmed |
Sections drawn to the published dimensions; ceiling and panel thicknesses are not published and are drawn symbolically. The 4-way 24,000 has the widest body of the 4-way units (830 mm), but the shallowest (205 mm), and needs less clear space than the 9,000 to 18,000: 230 mm against 290 mm. Sources: 4-way installation manual QS003I-Q(R454B), 2024-06-01 (opening, panel, lift); service manual SM_4-WAY CASSETTE(GA)_R454B_3D INV_US1_NA_2402 (clear space, body position, pump capacity); service manual SM_ONE-WAY CASSETTE(GA)_R454B_3D INV_US1_NA_2312 (1-way, re-read October 26, 2026); senville.ca spec tables (bodies); read October 14, 2026.
Pick a size. The two columns are the Senville cassettes sold here; the best figure in each row is marked.
At 9,000 BTU/h, the 1-way wins on SEER2 (24 vs 22.6), on HSPF2 region V (9.5 vs 9.3) and at −30 °C (5,100 vs 4,200 BTU/h). The 4-way gives more rated heat at −8.3 °C and −15 °C (9,700 and 11,000, against 9,000 and 10,600). Neither is on Hydro-Québec’s LogisVert list.
| At the same capacity | 4-way 9,000ICG | 1-way 9,0001WCG |
|---|---|---|
| Outdoor · indoor units | SENA-09HF-OGSENA-09HF-ICG | SENA-09HF-OGSENA-09HF-1WCG |
| Rated cooling at 35 °C | 9,000 BTU/h | 9,000 BTU/h |
| SEER2 · EER2 | 22.6 · 14 | 24 · 14.6 |
| HSPF2, region IV | 12.1 | 12.1 |
| HSPF2, region V | 9.3 | 9.5 |
| Heat at 8.3 °C | 10,000 BTU/hCOP 4.01 | 10,900 BTU/hCOP 3.71 |
| Heat at −8.3 °C | 9,700 BTU/hCOP 2.63 | 9,000 BTU/hCOP 2.44 |
| Heat at −15 °C | 11,000 BTU/hCOP 1.84 | 10,600 BTU/hCOP 1.83 |
| Maximum at −30 °C | 4,200 BTU/hCOP 1.02 | 5,100 BTU/hCOP 1.10 |
| LogisVert, indicative | not on the list | not on the list |
| ENERGY STAR | 3630051cold climate | 3893583cold climate |
| AHRI certificate | 215735304 | 216623593 |
| Ceiling opening | 600 × 600 mm | 430 × 1,300 mm |
| Nominal airflow | 353 CFM600 m³/h | not published |
| Discharge angle | 50° cooling, 65° heating | 45° cooling, 65° heating |
| Min. circuit ampacity · max. fuse | 15 A · 15 A | not published |
| Max. length · max. drop | 25 m · 15 m82 ft · 49.2 ft | 25 m · 15 m82 ft · 49.2 ft |
The 1-way leads on SEER2 (23 vs 22.2) and at −30 °C (5,100 vs 4,300 BTU/h). The 4-way leads on HSPF2 region V (8.9 vs 8) and on LogisVert ($1,200 vs $1,152), with 10,000 BTU/h at −8.3 °C against 9,600. At −15 °C, a tie: 11,500 BTU/h each.
| At the same capacity | 4-way 12,000ICG | 1-way 12,0001WCG |
|---|---|---|
| Outdoor · indoor units | SENA-12HF-OGSENA-12HF-ICG | SENA-12HF-OGSENA-12HF-1WCG |
| Rated cooling at 35 °C | 12,000 BTU/h | 12,000 BTU/h |
| SEER2 · EER2 | 22.2 · 12.5 | 23 · 13 |
| HSPF2, region IV | 11.6 | 10 |
| HSPF2, region V | 8.9 | 8 |
| Heat at 8.3 °C | 12,000 BTU/hCOP 3.70 | 12,500 BTU/hCOP 3.56 |
| Heat at −8.3 °C | 10,000 BTU/hCOP 2.74 | 9,600 BTU/hCOP 2.65 |
| Heat at −15 °C | 11,500 BTU/hCOP 1.99 | 11,500 BTU/hCOP 1.99 |
| Maximum at −30 °C | 4,300 BTU/hCOP 1.04 | 5,100 BTU/hCOP 1.09 |
| LogisVert, indicative | $1,200 | $1,152 |
| ENERGY STAR | 3630052cold climate | 3893584cold climate |
| AHRI certificate | 215735305 | 216623594 |
| Ceiling opening | 600 × 600 mm | 430 × 1,300 mm |
| Nominal airflow | 418 CFM710 m³/h | not published |
| Discharge angle | 50° cooling, 65° heating | 45° cooling, 65° heating |
| Min. circuit ampacity · max. fuse | 15 A · 15 A | not published |
| Max. length · max. drop | 25 m · 15 m82 ft · 49.2 ft | 25 m · 15 m82 ft · 49.2 ft |
Neither cools a rated 18,000 BTU/h: 16,700 for the 1-way, 16,000 for the 4-way, per their certificates. The 1-way leads on SEER2 (20.6 vs 20), at −15 °C (17,500 vs 17,000) and at −30 °C (9,500 vs 8,100); the 4-way on HSPF2 region V (9.5 vs 9.2) and on LogisVert ($1,788 vs $1,740).
| At the same capacity | 4-way 18,000ICG | 1-way 18,0001WCG |
|---|---|---|
| Outdoor · indoor units | SENA-18HF-OGSENA-18HF-ICG | SENA-18HF-OGSENA-18HF-1WCG |
| Rated cooling at 35 °C | 16,000 BTU/h | 16,700 BTU/h |
| SEER2 · EER2 | 20 · 12.5 | 20.6 · 12.5 |
| HSPF2, region IV | 12.3 | 12.2 |
| HSPF2, region V | 9.5 | 9.2 |
| Heat at 8.3 °C | 19,000 BTU/hCOP 3.18 | 20,000 BTU/hCOP 3.01 |
| Heat at −8.3 °C | 14,900 BTU/hCOP 2.70 | 14,500 BTU/hCOP 2.50 |
| Heat at −15 °C | 17,000 BTU/hCOP 1.90 | 17,500 BTU/hCOP 1.89 |
| Maximum at −30 °C | 8,100 BTU/hCOP 1.25 | 9,500 BTU/hCOP 1.47 |
| LogisVert, indicative | $1,788 | $1,740 |
| ENERGY STAR | 3630053cold climate | 3893585cold climate |
| AHRI certificate | 215735306 | 216623595 |
| Ceiling opening | 600 × 600 mm | 430 × 1,300 mm |
| Nominal airflow | 448 CFM760 m³/h | not published |
| Discharge angle | 50° cooling, 65° heating | 45° cooling, 65° heating |
| Min. circuit ampacity · max. fuse | 19 A · 20 A | not published |
| Max. length · max. drop | 30 m · 20 m98.4 ft · 65.6 ft | 30 m · 20 m98.4 ft · 65.6 ft |
These two sizes have no twin: the 6,000 exists only as a 1-way, the 24,000 only as a 4-way. The 1-way 6,000 is not on the LogisVert list; the 4-way 24,000 is, at $2,448, the largest amount among the cassettes. It cools a rated 23,400 BTU/h per its certificate.
| Single size | 1-way 6,0001WCG | 4-way 24,000ICG |
|---|---|---|
| Outdoor · indoor units | SENA-06HF-OGSENA-06HF-1WCG | SENA-24HF-OGSENA-24HF-ICG |
| Rated cooling at 35 °C | 6,500 BTU/h | 23,400 BTU/h |
| SEER2 · EER2 | 22 · 15 | 20.7 · 12 |
| HSPF2, region IV | 12 | 11.6 |
| HSPF2, region V | 10.3 | 9.2 |
| Heat at 8.3 °C | 7,400 BTU/hCOP 3.74 | 25,000 BTU/hCOP 3.54 |
| Heat at −8.3 °C | 7,000 BTU/hCOP 2.66 | 20,400 BTU/hCOP 2.78 |
| Heat at −15 °C | 8,100 BTU/hCOP 2.40 | 23,800 BTU/hCOP 2.23 |
| Maximum at −30 °C | 4,100 BTU/hCOP 1.37 | 9,500 BTU/hCOP 1.16 |
| LogisVert, indicative | not on the list | $2,448 |
| ENERGY STAR | 3893582cold climate | 3630054cold climate |
| AHRI certificate | 216623592 | 215735307 |
| Ceiling opening | 430 × 1,300 mm | 900 × 900 mm |
| Nominal airflow | not published | 765 CFM1,300 m³/h |
| Discharge angle | 45° cooling, 65° heating | 50° cooling, 65° heating |
| Min. circuit ampacity · max. fuse | not published | 25 A · 25 A |
| Max. length · max. drop | not published | 50 m · 25 m164 ft · 82 ft |
best figure in the row
Certified figures: ENERGY STAR and NEEP (rated capacities, COPs, maximum at −30 °C reported to NEEP), LogisVert from Hydro-Québec’s file, read October 14, 2026, re-checked unchanged October 26, 2026. Opening, airflow, angles, electrical and line lengths: Senville manuals and spec tables, October 14, 2026. Several senville.ca pages print figures that differ from the certificates (1-way 12,000: “22.2 SEER2” in the text, 23.0 in the table; 1-way 9,000: “20.5 SEER”; 1-way 6,000: “pre-charged with R410A”): we keep the certified values, R-454B for all eight systems. The senville.ca page for the 1-way 18,000 links AHRI certificate 215735314, which belongs to a 28,000 BTU/h multi-zone; the certificate for its SENA-18HF-OG and SENA-18HF-1WCG pair is 216623595.
Solid dot: certified rated heat at −15 °C. Hollow dot: maximum capacity reported to NEEP at −30 °C, the coldest point published for all eight cassettes. At 9,000, 12,000 and 18,000 BTU/h, the 1-way keeps more heat at −30 °C than the 4-way of the same size.
Scale: BTU/h. ENERGY STAR rated capacities at −15 °C, maximum capacities and COPs reported to NEEP at −30 °C, amounts from Hydro-Québec’s LogisVert file, read October 14, 2026, re-checked unchanged October 26, 2026. The 1-way 6,000 and both 9,000 units are not on Hydro-Québec’s list. Figures are printed as published.
| 4-way 9,000 and 12,000 | 25 m · 15 m |
|---|---|
| 4-way 18,000 | 30 m · 20 m |
| 4-way 24,000 | 50 m · 25 m |
| 1-way 9,000 and 12,000 | 25 m · 15 m |
| 1-way 18,000 | 30 m · 20 m |
| 1-way 6,000 | not published |
1-way line sizes: 1/4 in liquid; 3/8 in gas from 6,000 to 12,000, 1/2 in for the 18,000. For the 4-way, the manual table did not read cleanly: sizes not confirmed.
| Power supply, all eight | 208/230 V, single-phase, 60 Hz |
|---|---|
| 4-way 9,000 and 12,000 | 15 A · 15 Abody 35.27 lb (16 kg) |
| 4-way 18,000 | 19 A · 20 Aweight: not confirmed |
| 4-way 24,000 | 25 A · 25 Abody 47.18 lb (21.4 kg) |
| 1-way, all four | ampacity, fuse and weight: not published |
Panel weight is not published for any cassette: allow for it when planning the ceiling fixing.
On senville.com, the 4-way indoor unit sold on its own carries the line “Ceiling cassette panel is not included and must be purchased separately”. The box list of the senville.ca systems does not name the panel, and no ICG panel number is published: we spell it out on the quote.
Wireless remote included with the 4-way (1-way: not published); the same replacement remote fits both types (“Remote Control (ICG - 1WCG)” on senville.ca). Wired wall controller: optional per both manuals. Senville also sells the replacement condensate pump for the 4-way 9,000 and 12,000. Senville Wi-Fi modules and controls
“4-way airflow for 360° even room coverage” · “Individual louvre control per direction”senville.com, 4-way cassette SENA-09HF-ICG, October 14, 2026
“Bucket-Free Design” · “Vertical Swing & Follow Me Remote” · “PTC Heat Belt & Pan”senville.ca, 1-way SENA-09HF-1WC, October 14, 2026
The 1-way pages also claim “Low Ambient Cooling (-22°F/-30°C)”, a line missing from the 4-way pages: not confirmed.
Sources: 4-way installation manual QS003I-Q(R454B) and service manual SM_4-WAY CASSETTE(GA)_R454B_3D INV_US1_NA_2402 (lengths, wired controller), 1-way service manual SM_ONE-WAY CASSETTE(GA)_R454B_3D INV_US1_NA_2312, senville.ca spec tables (electrical, weight, 1-way line sizes), parts pages “Condensation Pump” and “Remote Control (ICG - 1WCG)”, read October 14, 2026. Both manuals give the maximum length and drop in feet and metres; those of the 1-way 6,000 are not published. Senville warranty for all eight systems: 10 years on the compressor, 5 years on parts, per the senville.ca spec tables. Warranty terms
On senville.ca, the complete systems are called SENA/12HF/IC for a 4-way and SENA-12HF-1WC for a 1-way. The AHRI and ENERGY STAR records and Hydro-Québec’s list name both units: the SENA-12HF-OG outdoor unit and the SENA-12HF-ICG (4-way) or SENA-12HF-1WCG (1-way) indoor unit. Those are the codes on our product pages and in the tables on this page.
Senville’s help-centre article on model numbers does list the 1-way units as SENA-06/09/12/18HF-1WCG, but still lists the 4-way units under older codes, SENA-09HFMO-ICZ16 to SENA-24HFMO-ICZ16, which are not the certified ones.
Question published by Senville: “What are the wall mount, cassette, duct, and floor unit model numbers?”, help centre, modified October 8, 2026, read October 26, 2026; AHRI and ENERGY STAR records.Senville does not say clearly. On senville.com, the page for the 4-way indoor unit sold on its own says “Ceiling cassette panel is not included and must be purchased separately”. On senville.ca, the complete system’s box list names no panel, without excluding one, and no panel number is published for the ICG units. The panel is 620 mm square (9,000 to 18,000) or 950 mm (24,000). We write it down plainly on the quote.
senville.com, SENA-09HF-ICG and SENA-24HF-ICG pages; senville.ca, SENA/09HF/IC to SENA/24HF/IC pages; manual QS003I-Q(R454B). Read October 14, 2026.Upward first: both types have a built-in pump and a lift pipe at most 75 cm above the ceiling. For the 4-way, the manual adds at most 30 cm from the unit, then a slope of at least 1/100; for the 1-way, both values are not confirmed. The 4-way service manual says its pump can lift water up to 1,000 mm, but the installation manual caps the pipe at 75 cm: that is the figure we use.
Senville manuals QS003I-Q(R454B), SM_4-WAY CASSETTE(GA)_R454B_3D INV_US1_NA_2402 and SM_ONE-WAY CASSETTE(GA)_R454B_3D INV_US1_NA_2312, read October 14, 2026.Not according to their certificates. Rated cooling at 35 °C is 16,000 BTU/h for the 4-way and 16,700 for the 1-way; heating at 8.3 °C, they give 19,000 and 20,000 BTU/h. Same at 24,000: the 4-way cools a rated 23,400 BTU/h. The number in the name is the size; the actual output is on the certificate.
AHRI certificates 215735306, 216623595 and 215735307; NEEP and ENERGY STAR, read October 14, 2026, re-checked unchanged October 26, 2026.Senville says so on its 1-way pages (“Low Ambient Cooling (-22°F/-30°C)”), not on its 4-way pages. The NEEP records for these systems publish cooling only at 35 °C and 27.8 °C: nothing confirms the claim, which we leave “not confirmed”. What is published and certified is heating: all eight cassettes have a point reported at −30 °C.
senville.ca, SENA-06HF-1WC page, October 14, 2026; NEEP, read October 14, 2026, re-checked unchanged October 26, 2026.
We check the ceiling cavity, the room for the cut-out and the path for the water, compare 4-way and 1-way at the right size, and your quote gives the AHRI certificate of the chosen pair and its LogisVert amount, indicative.
Applies to the whole Senville range
LogisVert amounts are indicative: Hydro-Québec confirms them when you apply. Prices on quotation.