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Senville Pro Partner · Authorized dealer/installer
Three rooms on one outdoor unit: the trios Senville sells, and the capacity they draw.
All four of Senville’s MOA outdoor units, the 18K to the 48K (18,000 to 48,000 BTU), take three indoor units; for the 18K, that is the maximum. Senville sells three-zone kits on the 28K and the 36K. Each trio is drawn as a bar against what its outdoor unit is certified to deliver, followed by the piping lengths allowed with three units connected.
Updated October 26, 2026 · NEEP, ENERGY STAR and SenvilleOne box per indoor unit allowed by Senville’s spec table (read October 14, 2026); in colour, the three connected.
This page answersFor a house or a unit with three rooms to condition: which outdoor units take three indoor units, which trios Senville sells ready-made, what share of the certified capacity each trio asks for, and how far the piping can run with three.
Four product pages, from the 18K to the 48K: the capacity budget further down tells what each trio asks of its own.
One scale for all four outdoor units, from 0 to 57,000 BTU/h. The coloured segments are the three indoor units, at their rated capacity. The pale blue zone stops at the dashed tick, the outdoor unit’s certified maximum cooling capacity; the gold tick marks its rated capacity, the basis of the percentage.
Three is the 18K’s maximum. The smallest indoor units on Senville’s list are 6,000 BTU: three of them add up to 95% of its rated capacity. Three 9,000 BTU units would reach 142%.
AirGreen product page · 18K, 3 zonesAll three trios stay under the certified maximum capacity (37,000 BTU/h); only the first fits within the rated capacity.
AirGreen product page · 28K, 3 zonesSenville does not itemise the three indoor units in this kit
The SKU SENA-36HF-T121212 suggests three 12,000 BTU units, 100% of its rated capacity, but the page does not say so: not confirmed.
AirGreen product page · 36K, 3 zonesNo Senville three-zone kit: each indoor unit is chosen one by one
With three, the 48K fills only half of its six places. To place its budget: three 12,000 BTU units would take 77%, three 18,000 BTU units 115%.
AirGreen product page · 48K, 3 zonesIndoor units: rated capacities printed by Senville in its kits and its Build Your Own list. Outdoor unit: certified cooling at 35 °C, rated and maximum, NEEP (read October 14, 2026, re-checked on the 26th). A trio above the rated capacity is not forbidden: Senville sells two on the 28K and has published no floor or ceiling of connected capacity for the MOA. The only written guidance on this case dates from the MOZ generation: each indoor unit’s practical output is then “adjusted accordingly”. Not confirmed for the MOA.
On October 26, 2026, the senville.ca “Tri-Zone” category lists three kits: two with wall units, on the 28K and the 36K, and one with ceiling cassettes, out of stock. None on the 18K or the 48K.
| SKU · UPC | SENA-30HF-T999 · 893088007630 |
|---|---|
| Linked certificate | AHRI 215735314 |
| Trios | 9,000 + 9,000 + 9,0009,000 + 9,000 + 12,00012,000 + 12,000 + 12,000 |
| Rooms, table | “2-4” |
| Printed pre-charge | 100 ft in total |
| Printed ranges | cooling 7,200 to 37,000, heating 8,400 to 36,000 BTU |
Its ranges are those of certificate 215735314, as are its SEER2 23 and HSPF2 8.5: it is a Senville page that matches the 28K’s certificate.
| SKU | SENA-36HF-T121212 |
|---|---|
| Indoor units | “3 Indoor Units (various BTU combinations)” |
| Rooms, table | “3” |
| Printed pre-charge | 100 ft |
| Printed ranges | cooling 9,000 to 43,000, heating 10,000 to 44,000 BTU |
| Certificate | no AHRI number on the page |
Its ranges, SEER2 23, EER2 13 and HSPF2 10.7 and 8.5 are those of the 36K’s certificate 215735317 (page read October 26, 2026).
Presented by Senville as “36000BTU Tri Zone Ceiling Cassette Air Conditioner”, out of stock in the category. Its page does not list the cassettes and prints “2-4” zones and a 100 ft pre-charge.
For the 18K and the 48K, the three indoor units are chosen one by one from Senville’s list, within each one’s table.
senville.ca: Tri-Zone category and SENA/30HF/T, SENA/36HF/T and SENA/36HF/TIC pages, read October 26, 2026; SENA/30HF/T ranges read October 14, 2026. NEEP certificates read October 14, 2026, re-checked October 26, 2026.
With three indoor units, each line may run up to 98 ft (30 m) and all three together up to 197 ft (60 m). No Senville pre-charge covers that maximum: beyond its own, the technician adds the charge set out in the manual.
Standard length for three: 3 × 24.6 ft = 73.8 ft (22.5 m), below every pre-charge.
| All three lines | 197 ft (60 m) |
|---|---|
| One line | 98 ft (30 m) |
| All three lines | 172 ft (52.5 m) not confirmed |
|---|---|
| One line | 73 ft (22.5 m) not confirmed |
Senville’s trios on the 28K use only 9,000 and 12,000 BTU units: three 1/4 and 3/8 in lines. An 18,000 BTU unit would need 1/4 and 1/2 in, a 24,000 BTU unit 3/8 and 5/8 in.
MOA outdoor unit installation manual, QS006UI-YTD(R454B), pp. 14 and 18, and service manual SM_ODUMULTI_R454B_3D INV_US1_NA_2403, pp. 3 and 4: lengths without quick connectors and line sizes agree. Pre-charges: senville.ca kit tables, October 14 and 26, 2026. The allowed height differences, common to every number of rooms, are on the Multi-zone page.
When two Senville pages contradict each other, the certificate decides; failing that, the value carried by the most pages.
Published by SenvilleSpec table and 9,000 BTU wall unit page: “2-3”. English title: “18000 BTU Multi-Zone Outdoor Unit (3 Zones)”. French title: “(3 zones)”, with “2-zones” in the address.
Kept here2 to 3 rooms for the certified SENA-18HF-MOA (AHRI 215735311): three is its maximum, and this page shows it at its limit.
Published by SenvilleUnder the same AHRI certificate 215735314, the two-zone page prints “SEER” 23.8, “HSPF5” 8.8 and 28,000 BTU; the three-zone page prints SEER2 23, HSPF2 8.5 and 27,000 BTU.
Kept hereThe three-zone page’s values, which are the certificate’s: 27,000 BTU/h rated cooling.
Published by SenvilleThe two- and four-zone kits print 125 ft; the SENA/36HF/T three-zone kit and the cassette kits, 100 ft (read October 26, 2026).
Kept hereBoth values are in the pre-charge bars; we confirm the chosen kit’s value before quoting.
Published by Senville“2-5” on its wall-unit pages; “3” on the SENA/36HF/T page; “2-4” on the cassette kit pages.
Kept here2 to 5 rooms, the value printed on the most Senville pages. At three, every version agrees.
Readings: senville.ca and fr.senville.ca on October 14, 2026, kit pages again on October 26; NEEP on October 14, checked on the 26th.
Yes, and it is its limit: Senville rates it for 2 to 3 indoor units, with no ready-made three-zone kit. Its certified cooling is 19,000 BTU/h rated, 28,000 at maximum: three 6,000 BTU units take 95%.
SENA/18HF/D kit spec table, re-read October 27, 2026; senville.ca Tri-Zone category, October 26, 2026; NEEP, certificate 215735311.On the 28K, the SENA/30HF/T kit in three versions: 3 × 9,000, 9,000 + 9,000 + 12,000 and 3 × 12,000 BTU. On the 36K, the SENA/36HF/T kit, whose indoor units Senville does not itemise, and an out-of-stock ceiling-cassette version.
senville.ca, Tri-Zone category and kit pages, October 26, 2026.Without quick connectors, 98 ft (30 m) at most per line and 197 ft (60 m) for all three together. With quick connectors, a single source gives 172 ft (52.5 m) in total: not confirmed.
Topic of a Senville help-centre article (line sets, title reconstructed); limits for three: manual QS006UI-YTD(R454B), p. 14.Senville allows it in its own kits: the 3 × 12,000 BTU trio adds up to 36,000 BTU on a 28K certified at 27,000 BTU/h, under its 37,000 maximum. For the MOA, Senville publishes no rule; an older MOZ sheet says each indoor unit’s capacity is then adjusted. We size each room during the visit.
senville.ca SENA/30HF/T page, October 26, 2026; NEEP, certificate 215735314; “Compatible Indoor Combinations for Senville Multi-Zone Systems” sheet (MOZ generation): not confirmed for the MOA.
We measure the three rooms and the route of the three lines, tally the indoor units against the certified capacity, and your quote names the AHRI certificate used with its indicative LogisVert amount.
Applies to the whole Senville range
LogisVert amounts are indicative: Hydro-Québec confirms them when you apply. Prices on quotation.
