BOSCH Regular 4-Zone Heat Pump | 48,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore and North Shore

In stock
SKU: BMS500-AAM048-1CSXRC-9999
48,000BTU/h · 4 heads
−25 °Cheats down to
$1,700LogisVert, indicative
ENERGY STAR®ENERGY STAR Most EfficientOptional Wi-FiR-410AUp to 5 heads
Areas
Talk to a technician · 514 316-2973
Outdoor unit BMS500-AAM048-1CSXRCPossible indoor models BMS500-AAU006-1AHWXC, BMS500-AAU009-1AHWXC, BMS500-AAU012-1AHWXC, BMS500-AAU018-1AHWXC, BMS500-AAU024-1AHWXC, BMS500-AAU030-1AHWXC, BMS500-AAU036-1AHWXCAHRI 207760030· ENERGY STAR 2450724
In short

The Bosch Régulier 48 000 multi-zone heat pump heats and cools 4 rooms with a single outdoor unit. it delivers 34,000 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $1,700 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.

01 · The verdict in 10 seconds

4 rooms, one outdoor unit.

Compared with the 82 multi-zone systems of 48,000 BTU we sell. Every number on this page carries its source.

ENERGY STAR Most EfficientNEEP 404955AHRI 207760030LogisVert · October 1, 2026
+SEER2 23.4Rank 1 (tied) of 78. Class median: 21.3.
!Good to know: HSPF2 8.7Rank 71 of 78; class median: 10.0.
34,000BTU/h certified at −8 °C
−25 °Cstill heating
4 → 5heads, on the same unit
2.4COP at −8 °C
$1,700LogisVert, indicative
02 · The machine

The parts that make a multi-zone system.

Tap a part to learn more.

BMS500-AAM048-1CSXRC

Outdoor unit

One compressor for the whole house. It supplies up to 5 heads and modulates from 13,000 to 37,000 BTU/h depending on what the rooms call for (NEEP).

03 · How it works

Turn rooms on and off. Watch the power being shared.

One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.

04 · My plan

Tell us your rooms. We tell you if this size is enough.

Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.

05 · The series

The whole series at a glance: find the box that fits you.

Each box is a product: the outdoor unit’s size, and the number of heads.

Outdoor2 zones3 zones4 zones5 zones
18,000BTU
2
27,000BTU
23
36,000BTU
234
48,000BTU
23Here5

Bosch Régulier 48 000 · 4 zones

34,000 BTU/h
at −8 °C
$1,700
LogisVert

Up to 5 heads on this outdoor unit. Tap another box to see that size.

06 · Deep cold

At −15 °C, it still delivers 68 % of its rated capacity.

Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.

It slows down, it speeds up: the certified modulation range

Light bar: from minimum to maximum capacity. Dark mark: the rated value.

+8.3 °C
13,000 → 52,000 BTU/h
-8 °C
12,000 → 37,000 BTU/h
-15 °C
10,000 → 33,000 BTU/h
Source: NEEP, minimum, rated and maximum ratings at 47, 17 and 5 °F.
07 · The bill

At every temperature, cheaper than baseboards.

Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.

08 · Efficiency

The official ratings, on the same scales as before.

SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.

SEER2 · seasonal cooling23.4
Scale 1 – 30Median: 21.3
Rank 1 (tied) of 78 in its class.
HSPF2 · seasonal heating8.7
Scale 1 – 15Median: 10
Rank 71 (tied) of 78 in its class.
EER2 · cooling in peak heat12.5
Scale 1 – 20Median: 12
Rank 22 (tied) of 78 in its class.
COP at −15 °C1.8
Scale 0 – 4Median: 2
Rank 60 (tied) of 71 in its class.
ENERGY STAR Most EfficientCold climate · ID 2450724 · ENERGY STAR database
09 · LogisVert grant

A grant you can calculate, not guess.

34,000 BTU/h÷ 1,000 ×$50=$1,700

The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $50 per 1,000 BTU/h is the rate for ENERGY STAR heat pumps (guide v1.10).

Set for this system (AHRI 207760030). Another head combination (ducted, console) can change the AHRI number, and so the amount.
Cap: the grant never exceeds 100 % of the purchase and installation cost before taxes.
9 months after installation to apply; +5 % when two measures are in the same request.
All about LogisVert, with the simulator
10 · Report card

Where it ranks among same-size multi-zone systems.

Compared with the 82 multi-zone systems of 48,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.

11 · Head-to-head

Against three other brands in its class.

Same rated size, other manufacturers. Pick the opponent.

12 · Multi-zone or wall units

One multi-zone or several wall units? Both sides, honestly.

This multi-zone4 wall units
On the wall1 outdoor unit4 outdoor units
Electrical1 dedicated circuitOne circuit per unit
CapacityShared between roomsReserved for each room
If the outdoor unit stopsEvery zone stopsOnly one room
ModesSame mode everywhereEach room chooses
LogisVert$1,700 for the systemDepends on each model

We compare both options on your floor plan during the estimate.

13 · Installation

What to know before installing a multi-zone system.

Dimensions, wiring and lines, drawn. Then our six steps.

The outdoor unit, dimensioned

52.5 in
BMS500-AAM048-1CSXRCDepth 16.3 in
37.5 in
Dimensions: product sheet (W × D × H).

One circuit for the whole house

Electrical panel
Load calculation before the quote
60 A max. breaker
MCA 40 A · 220 V
Outdoor unit
Head 1
Head 2
Head 3
Head 4
Our RBQ licence covers electrical work (subclass 16).
01Room-by-room visit and surveyWe measure each zone and note insulation and windows. The on-site estimate is free.
02Heads and line layoutOne pair of lines per head.
03Outdoor unit baseAbove the snow line, away from the neighbours’ bedroom windows.
04Exposed, finished linesLines 1/4 - 3/8 in under line covers, no work inside the walls.
05Dedicated circuit220 V, MCA 40 A, 60 A protection. The panel load calculation is done before the quote.
06Commissioning, zone by zoneEach head is tested and the controls set up. Then the LogisVert application within 9 months.
14 · Sound

Published sound levels, on one scale.

We use the outdoor figure to choose where the unit goes.

28
39.5
64
28
64
20 dB(A)3040506070
28 Reference head, lowest speed39.5 Reference head, highest speed28 Class indoor median64 Outdoor unit64 Class outdoor median
Values in dB(A). Indoor values are those of the sheet’s reference head; each head has its own, confirmed for the chosen model. Municipal noise by-laws vary by borough.
15 · What sets it apart

What is particular about this machine.

Only facts published by ENERGY STAR, NEEP or the manufacturer.

Most EfficientENERGY STARAmong the year’s most efficient according to ENERGY STAR.
37,000BTU/h peak at −8 °CIts maximum capacity certified by NEEP, above its rated value.
13,000BTU/h at low speedMinimum certified capacity (NEEP): it slows down instead of stopping when a single room calls.
150 WBase pan heaterHeater in the outdoor unit’s base pan, against ice (NEEP).
16 · Specifications

Every number, and where it comes from.

Each line carries its source; a line with no published value is not shown.

Performance
Cooling capacity (size)48,000 BTU · 4 tonsSheet
Certified cooling at 35 °C48,000 BTU/hNEEP
SEER2 (seasonal cooling efficiency)23.4AHRI
EER2 (instant cooling efficiency)12.5AHRI
HSPF2 (seasonal heating efficiency, region IV)8.7AHRI
HSPF2, region V (coldest)6.8NEEP
Dehumidification2.54 pints/hSheet
Heating
Capacity at +8.3 °C48,000 BTU/h · COP 3.56NEEP
Capacity at −8 °C34,000 BTU/h · COP 2.4NEEP
Capacity at −15 °C33,000 BTU/h · COP 1.8NEEP
Modulation range13,000 – 37,000 BTU/hNEEP
Heats down to−25 °CSheet
Zones and heads
Zones on this product4 Zones (Quad Zone)Sheet
Maximum zones5 ZonesSheet
Possible indoor modelsBMS500-AAU006-1AHWXC, BMS500-AAU009-1AHWXC, BMS500-AAU012-1AHWXC, BMS500-AAU018-1AHWXC, BMS500-AAU024-1AHWXC, BMS500-AAU030-1AHWXC, BMS500-AAU036-1AHWXCSheet
Combinations offered8 · 9+9+9+9 … 12+12+12+12Sheet
Indoor dimensions (W × D × H)33.39 x 9.06 x 11.69 inSheet
Vertical louversManualSheet
Horizontal louversAutoSheet
Airflow (reference head)336 CFMSheet
Indoor sound (reference head)28 – 39.5 dB(A)Sheet
Installation
Outdoor unit (W × D × H)37.5 x 16.3 x 52.5 inSheet
Line sizes1/4 - 3/8 inSheet
Outdoor sound64 dB(A)Sheet
Base pan heater150 WNEEP
Electrical
Voltage220 VSheet
MCA (minimum circuit ampacity)40 ASheet
MOP (maximum overcurrent protection)60 ASheet
RefrigerantR-410ASheet
Wi-FiOptionalSheet
Certifications and warranty
AHRI207760030AHRI
ENERGY STARYes · ID 2450724ENERGY STAR
ENERGY STAR Most EfficientYesENERGY STAR
LogisVert grant (indicative)$1,700LogisVert
Warranty (compressor · parts · labour)10 yrs · 10 yrs · 0 yrsSheet
AirGreen extended warrantyPossibleSheet
17 · Official brochures

The manufacturer’s documentation, as PDF.

18 · Description

Everything we have written about this system.

BOSCH Regular Wall-Mounted 4-Zone Heat Pump

An Innovative Comfort Solution for Montreal and Surrounding Areas

In the competitive world of Heating, Ventilation, and Air Conditioning (HVAC), standing out through excellence and innovation is crucial. AirGreen, your HVAC solutions expert in Montreal, Laval, Longueuil, as well as the North Shore and South Shore, is proud to introduce the BOSCH Regular Wall-Mounted 4-Zone Heat Pump, a cutting-edge solution for optimal home comfort.

Exceptional Features

This heat pump stands out with its premium features, designed to offer unmatched performance and an unprecedented user experience:

  • Impressive cooling and heating capacity: With a cooling capacity of 48,000 BTU and efficient heating performance down to -25°C, this heat pump is equipped to handle the most severe climates.
  • Maximum flexibility with 4 to 5 zones: Adaptable to different spaces, it allows personalized temperature management in multiple areas of your home.
  • Optimized dimensions and technical specifications: Designed to seamlessly integrate into your space, its exterior dimensions and serial numbers reflect BOSCH's commitment to quality and reliability.
  • Advantageous subsidies: Benefit from federal and provincial subsidies for an economically advantageous installation.
  • Superior energy efficiency: Energy Star® certified and boasting a 22.4 SEER performance rating, it promises significant savings on your electricity bills.

Advanced Technology and Customized Comfort

The BOSCH Climate 5000 series stands for simple installation, reduced maintenance, and superior indoor air quality. These heat pumps use efficient technologies to minimize electricity consumption while maximizing comfort:

  • Simplified installation and maintenance: Thanks to innovations such as the factory-installed base pan heater and built-in condensate pump for certain models, installation and maintenance are simplified, thus reducing costs and service times.
  • Exceptional indoor air quality: A multi-part filter system refreshes and purifies the air by reducing odors, allergens, viruses, and bacteria, ensuring a healthy environment for your family.
  • Intuitive control of your comfort: The system allows for precise temperature and humidity adjustments, with automated features like the "Follow Me" mode for increased comfort customization.

Commitment to Customer Satisfaction

At AirGreen, our priority is the total satisfaction of our clients. We are committed to providing HVAC solutions that not only meet but exceed expectations in terms of performance, energy efficiency, and reliability. The BOSCH Regular Wall-Mounted 4-Zone Heat Pump is a testament to this commitment, offering a heating and cooling solution tailored to the specific needs of our clients in Montreal, Laval, Longueuil, and the surrounding areas.

By choosing AirGreen for your heat pump installation, you opt for unmatched expertise, dedicated customer service, and superior quality products. We are here to support you every step of the way, from selecting your system to its installation and maintenance, ensuring your comfort throughout the year.

19 · Questions

What people ask us about multi-zone systems.

Can I heat one room and cool another at the same time?

No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.

What happens when every room calls for heat?

They share the outdoor unit’s capacity: 34,000 BTU/h at −8 °C, 33,000 at −15 °C.

How many heads can I connect?

Up to 5 on this outdoor unit. This product is configured for 4 heads.

Can I mix head sizes?

Yes. The “Zones” menu offers 8 combinations, from 9+9+9+9 to 12+12+12+12 (in thousands of BTU). Each head is sized for its room.

How much is the LogisVert grant?

$1,700 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.

Is it ENERGY STAR certified?

Yes, ID 2450724. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.

Down to what temperature does it heat?

Down to −25 °C.

Is it noisy?

Indoors, the reference head goes down to 28 dB(A). Outdoors, 64 dB(A): we place the unit away from bedroom windows.

Why a multi-zone instead of several wall units?

One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.

What does the warranty cover?

Our sheet lists 10 years on the compressor and 10 years on parts; labour is not included by the manufacturer. AirGreen extended warranty: possible.

AirGreen

A multi-zone system is planned room by room. At your home.

We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.

RBQ 5645-9605-01Ventilation 15.8, refrigeration 15.10, electrical 16
We handle the circuitOur licence covers the electrical work
LogisVert : $1,700AHRI 207760030 checked against the list of October 1, 2026
Beware of scamsHydro-Québec does no phone or door-to-door solicitation for LogisVert
Sources checked on October 1, 2026.NEEP, Cold Climate Air Source Heat Pump List, product 404955 (AHRI 207760030): capacities and COP, modulation, SEER2, EER2, HSPF2.ENERGY STAR certified heat pump database, ID 2450724.Hydro-Québec, LogisVert eligible heat pump list (owner, existing home), file of October 1, 2026; participation guide, version 1.10.Costs: Hydro-Québec Rate D, 11.142 ¢/kWh (second tier, since 1 April 2026). Amounts shown are estimates; only the responsible bodies confirm the grant awarded.