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AirGreen × ARCOAIRE · Multi-zone · 4 zonesFour rooms, one outdoor unitSold and installed by AirGreen across Montreal, Laval, Longueuil, the South Shore and the North Shore.
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ARCOAIRE 4-zone heat pump · Updated October 29, 2026

Four rooms: the smallest outdoor unit that takes your four heads.

With four heads, the DLCMRA starts at 36,000 BTU, going by the maximum number of heads the manufacturer prints. The DLCMHB, at the end of its series, starts at 30,000, and we sell the D5CMHA as 4-zone from 30,000. Choose the four heads: you see the smallest unit that has them in the manufacturer’s chart, and the verdict for every 4-zone unit.

9outdoor units sold as 4-zone systems
25four-head combinations printed in the DLCMRA chart (36,000 and 48,000)
-30 °Cheating limit published for all three families
30,000 to 55,000BTU, the range of outdoor units
01 · The four heads

Four heads: what is the smallest outdoor unit that takes them?

Tap the head size for each room, in any order. The verdict comes from the manufacturer’s documents; the maximum heat is listed by NEEP or ENERGY STAR Canada, or printed in the 2018 catalogue, as shown under each value.

Head for room 1

Head for room 2

Head for room 3

Head for room 4

The size of each head is decided at the visit, room by room. Here you see what the manufacturer’s documents say about these four heads.

Four heads 9,000 + 9,000 + 12,000 + 12,000 BTU/h
36,000 BTU, the smallest unit in the chart

The 36,000 DLCMRA has this combination in the manufacturer’s chart.

Smallest DLCMRA in the chart36,000
Smallest DLCMHB (end of series), heads within the range we read, to be confirmed36,000
D5CMHA, sizes sold as 4-zone, to be confirmed3 of 4
Beyond 133% of the unit, to be confirmed2
All four heads together42,000 BTU/h

Sizes in BTU. The manufacturer publishes the DLCMRA combination chart (2018 catalogue, p. 48). For the DLCMHB, we read one range per head in the 2024 catalogue (p. 21), with no combination chart. No chart is published for the D5CMHA.

Outdoor unitVerdict for these four headsMax. at -15 °CMax. at -30 °CSEER2Max. headsIndicative LogisVert
D5CMHA · R-454B
30,000 BTU
D5CMHAH30EAK
No chart publishedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed36,000
NEEP
22,40024not published$4,200
36,000 BTU
D5CMHAH36EAK
No chart publishedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed36,000
NEEP
22,40023.1not published$4,560
48,000 BTU
D5CMHAH48FAK
No chart publishedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed47,000
NEEP
24,60023not published$5,400
55,000 BTU
D5CMHAH55FAK
No chart publishedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed47,000
NEEP
26,40022.3not published$5,640
DLCMHB · R-410A, high heat · end of series
30,000 BTU
DLCMHBH30DAK
Heads within the range we read in the catalogue, to be confirmedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed23,000
ENERGY STAR
not published22.44$1,350
36,000 BTU
DLCMHBH36DAK
Heads within the range we read in the catalogue, to be confirmedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed36,000
NEEP
not published204$4,200
48,000 BTU
DLCMHBH48EAK
Heads within the range we read in the catalogue, to be confirmedBeyond what the manufacturer prints for the DLCMRA (133%): to be confirmed45,000
NEEP
not published21.25$4,680
DLCMRA · R-410A
36,000 BTU
DLCMRAH36DAK
In the manufacturer’s chartNot in the manufacturer’s chart26,200
2018 catalogue · not certified
not publishedno SEER2 rating4none on our sheets
48,000 BTU
DLCMRAH48EAK
In the manufacturer’s chartNot in the manufacturer’s chart37,900
2018 catalogue · not certified
not publishedno SEER2 rating5none on our sheets

Heat in BTU/h: the outdoor unit’s maximum for the whole system, not per room. In the DLCMRA chart, the four heads add up to 75% to 133% of the outdoor unit’s size (our calculation). Beyond 133% of the outdoor unit’s size (the highest ratio the manufacturer prints for a DLCMRA combination), we show no positive verdict for the DLCMHB or the D5CMHA: to be confirmed. For the DLCMHB, the 2024 catalogue (p. 21) gives each head’s range in merged cells with no borders: we read one range per unit, which we confirm before the quote. The DLCMHB is at the end of its series.

The shop

All 9 ARCOAIRE 4-zone systems, right below.

Each product gives the outdoor unit, the head combinations offered and, when there is one, the AHRI number and the indicative LogisVert amount. Pricing by quote.

ARCOAIRE
02 · In the chart

Every four-head combination the manufacturer prints for the DLCMRA.

In thousands of BTU/h, as printed in the ARCOAIRE ductless catalogue 328-32-0499-00 (May 2018), p. 48. A combination that is missing is not provided for that size by the manufacturer.

DLCMRAH36DAK

36,000 BTU · 7 combinations

9 + 9 + 9 + 99 + 9 + 9 + 129 + 9 + 9 + 189 + 9 + 12 + 129 + 9 + 12 + 189 + 12 + 12 + 1212 + 12 + 12 + 12
DLCMRAH48EAK

48,000 BTU · 18 combinations

9 + 9 + 9 + 99 + 9 + 9 + 129 + 9 + 9 + 189 + 9 + 9 + 249 + 9 + 12 + 129 + 9 + 12 + 189 + 9 + 12 + 249 + 9 + 18 + 189 + 9 + 18 + 249 + 12 + 12 + 129 + 12 + 12 + 189 + 12 + 12 + 249 + 12 + 18 + 189 + 18 + 18 + 1812 + 12 + 12 + 1212 + 12 + 12 + 1812 + 12 + 12 + 2412 + 12 + 18 + 18
03 · The line sets

Four heads, four line sets: how far can they go?

The limits the manufacturer prints in its catalogues for the DLCMRA and the DLCMHB, and those on its web page for the D5CMHA. The total length adds up all four line sets.

Outdoor unitTotal lengthFarthest headHeight difference
D5CMHA · R-454B
D5CMHA
30,000 to 55,000 BTU
197 to 262.5 ft
family, depending on size; manufacturer web page
not published49 to 65 ft (lift or drop)
family, depending on size; manufacturer web page
DLCMHB · R-410A, high heat · end of series
30,000 BTU
DLCMHBH30DAK
262 ft (80 m)115 ft (35 m)49 ft (15 m)
36,000 BTU
DLCMHBH36DAK
262 ft (80 m)115 ft (35 m)65 ft (20 m)
48,000 BTU
DLCMHBH48EAK
328 ft (100 m)115 ft (35 m)65 ft (20 m)
DLCMRA · R-410A
36,000 BTU
DLCMRAH36DAK
263 ft (80 m)115 ft (35 m)49 ft (15 m)
48,000 BTU
DLCMRAH48EAK
328 ft (100 m)115 ft (35 m)65 ft (20 m)

DLCMRA: ARCOAIRE ductless catalogue 328-32-0499-00 (May 2018), p. 46. DLCMHB: ARCOAIRE ductless catalogue DLS-001-AR-01 (March 2024), p. 47. D5CMHA: manufacturer web page (arcoaire.com), read November 5, 2026, values given in feet for the whole family, depending on size; no per-size value is published.

Did you know

Three things the manufacturer’s charts tell you.

0 × 24

On the 36,000 DLCMRA, four heads rule out the 24,000.

Its seven four-head combinations use only 9,000 and 12,000 heads, and at most one 18,000.

ARCOAIRE ductless catalogue 328-32-0499-00, May 2018, p. 48
5 of 18

On the 48,000 DLCMRA, a 24,000 head fits in 5 four-head combinations.

Always a single 24,000 per combination, with three heads from 9,000 to 18,000 (counted by us from the chart).

ARCOAIRE ductless catalogue 328-32-0499-00, May 2018, p. 48
133%

Four 12,000 heads on the 36,000 DLCMRA: the manufacturer prints it.

48,000 BTU/h of heads on a 36,000 unit, 133% of its size (our calculation): the highest ratio in the whole chart.

ARCOAIRE ductless catalogue 328-32-0499-00, May 2018, p. 48
04 · Questions

What people ask us about 4-zone systems.

Four small rooms: do I really need a big outdoor unit?

The number of heads matters as much as their size. The 27,000 DLCMRA takes three at most: for four heads, even 9,000 ones, you need at least the 36,000 DLCMRA, the 30,000 DLCMHB (end of series) or the 30,000 D5CMHA, which we sell as 4-zone (to be confirmed).

Why “to be confirmed” for the DLCMHB?

For the DLCMHB, the 2024 catalogue gives each head’s range in merged cells, with no combination chart. We show our reading, and beyond 133% of the unit’s size, no positive verdict. The DLCMHB is at the end of its series: we confirm the four heads and the stock before the quote.

And the D5CMHA?

We sell it as 4-zone from 30,000 to 55,000. The manufacturer publishes neither a combination chart nor a maximum per size: we confirm the four heads before the quote; beyond 133% of the unit’s size, it is to be confirmed first.

Is the heat split into four equal shares?

No. The maximum heat is the outdoor unit’s, for the whole system; it goes to the rooms that call for it, according to their need.

What about LogisVert?

It is indicative and taken from our product sheets. The DLCMRA units have none on our sheets. Only Hydro-Québec confirms the amount granted.

How do you choose the four heads?

At the visit, room by room; then we check that the outdoor unit accepts the four heads and that the four line sets stay within the manufacturer’s lengths.

AirGreen × ARCOAIRE

Four rooms, an outdoor unit of the right size.

We size each room, choose the four heads, then the smallest outdoor unit that takes them according to the manufacturer’s documents. You get a quote with the system and its AHRI number when it has one.

RBQ licence 5645-9605-01Subclasses 15.8, 15.10 and 16. Gas and oil work is done by a licensed partner.
Free on-site estimateHead sizes and the route of the four line sets are decided at your home, once we have seen the rooms and the electrical panel.
Sold and installed by AirGreenMontreal, Laval, Longueuil, South Shore and North Shore.

Sources checked on October 29, 2026

  1. ARCOAIRE ductless catalogue 328-32-0499-00 (May 2018), pp. 46 and 48 (printed page numbers): DLCMRA, specifications and combination chart, re-read October 29, 2026.
  2. ARCOAIRE ductless catalogue DLS-001-AR-01 (March 2024), pp. 21 and 46 to 48: DLCMHB.
  3. ARCOAIRE Deluxe Series brochure DLS-030-AR-02 (June 2026), pp. 2 and 4: D5CMHA.
  4. Manufacturer web page (arcoaire.com), read November 5, 2026 (“D5CMHA - Deluxe Multi-Zone Heat Pump”): D5CMHA line-set lengths.
  5. NEEP cold-climate heat pump list, records 390097, 390103, 390107, 390111, 405755, 405758, modified August 24, 2026, read October 28, 2026.
  6. ENERGY STAR, Certified Air-Source Heat Pumps, Canadian market (D5CMHAH30EAK 3722940, D5CMHAH36EAK 3620813, D5CMHAH48FAK 3556880, D5CMHAH55FAK 3556883, DLCMHBH30DAK 2545779, DLCMHBH36DAK 2411692, DLCMHBH48EAK 2410134), read October 28, 2026.
  7. airgreen.ca product sheets (combinations offered, sale status, indicative LogisVert amounts), re-read October 29, 2026.

LogisVert amounts are indicative. Only Hydro-Québec confirms the amount granted. Pricing by quote.