Looking for the Carrier Optimax Inverter 5 HP Cool & Heat Split AC? This is model 53QHET36DN-708F from the Optimax Inverter series: 36,000 BTU (5 HP), cool & heat, with an inverter compressor, on R410A, at EGP 91,400 for the unit including delivery. El Shora is the authorized Carrier dealer, with our base and warehouse in 6th of October.
See all Carrier 5 HP models, prices and series differences on one page: Carrier 5 HP air conditioners.
Refrigerant: R410A – the standard refrigerant most widely used in Egypt: any service centre can charge it and parts are available everywhere. How it compares with R32.
Carrier Optimax Inverter 5 HP Cool & Heat Split AC – technical data
| Brand | Carrier |
| Series | Optimax Inverter |
| Model code | 53QHET36DN-708F |
| Unit type | Wall-mounted split |
| Nominal capacity | 5 HP ≈ 36,000 BTU/hr |
| Approximate area | 32 – 43 m² at 2.8 m ceiling |
| Operating mode | Cool & heat (heat pump) |
| Compressor | DC inverter – tropical twin-rotary inverter, GMCC Toshiba |
| Refrigerant | R410A |
| Power supply | Single-phase / 220 V |
| Refrigerant pipe sizes (manufacturer catalogue) | gas 5/8" × liquid 3/8" |
| Max pipe run / height difference | 50 m / 25 m |
| Warranty | Authorized dealer warranty — duration and terms are stated in the warranty certificate and the quotation |
| Price (delivery only) | EGP 91,400 – updated 12 September 2026 |
Pipe sizes and maximum run come from the manufacturer catalogue for this exact model; the rest of the table is from our company data. The full table for every model is at the refrigerant pipe size table.
How to read the code 53QHET36DN-708F
The code is not random; reading it lets you make sure you are comparing the same model at any seller (per the brand's Egyptian models):
- 53 = the Carrier Egypt model prefix
- Q = cool & heat (heat pump)
- 36 = cooling capacity in thousands of BTU (36,000 BTU/hr ≈ 5 HP)
- DN = DC inverter compressor
The right space for 5 HP
Using our approved heat-load method (length × width × height × a factor of 300 / 350 / 400 BTU/m³ depending on exposure), this capacity covers 32 to 43 m² at a 2.8 m ceiling. High capacity for large halls, shops, small restaurants and pharmacies. In commercial use, long running hours turn the inverter-vs-fixed consumption gap into a noticeable yearly amount. Large glazing, a kitchen and the number of occupants raise the load, so confirm with a real calculation: how engineers pick the right AC capacity · what HP and BTU mean · the AC calculator.
What makes the difference in operation
This model is cool & heat, so in winter it reverses the cycle and moves heat from outside in rather than generating it like a heater. That is why it draws far less power for the same feeling of warmth.
Inverter compressor: it starts at high capacity until the set temperature is reached, then slows down instead of stopping and restarting. The result is steadier cooling, less noise and lower consumption over long runs.
The Carrier Optimax Inverter series
The inverter version of Optimax comes in 4 and 5 HP only. It earns its price difference when a large space runs most of the day, because consumption at these sizes is a big number. Our range has 2 models in this series from 4 to 5 HP, and this model is the largest capacity in the series. All models are in the Optimax Inverter category · all Carrier prices.
When to choose it
You would choose this model when you want winter heating from the same unit without a separate heater. And the space is 32 to 43 m² with an external wall close by for the pipe route. If either of those does not apply to you, look at the alternatives in the table below before paying.
Why pay more? 53QHET36DN-708F compared
Instead of comparing across websites, here are all the close alternatives we stock in one table at today's prices: the other mode, the other compressor, the other brand, and the higher and lower capacities in the same series.
The cheapest Carrier 5 HP wall-mounted split in our range is 53QHET36N-708F at EGP 78,890; this model costs EGP 12,510 more for the inverter.
Price against capacity
A simple measure that compares prices fairly: divide the unit price by its rated capacity. 53QHET36DN-708F costs EGP 91,400 for 36,000 BTU, which means 2,539 EGP per 1,000 BTU.
| This model | EGP 2,539 per 1,000 BTU |
| Average across our wall-mounted split range (44 models) | EGP 1,971 |
| Cheapest model of the same type | EGP 1,570 |
| Most expensive model of the same type | EGP 2,652 |
Cost per unit of cooling here is 29% above average, which is expected because you are paying for the inverter and heating and the series level. If that number matters most, the comparison table above has the cheaper options.
How we carry out the installation
With a wall split, the position of both units affects cooling more than anything else: the indoor unit facing the length of the room rather than a closed corner, the outdoor unit in open air away from sun reflected off a facing wall, and the shortest practical pipe run between them.
We work to approved specifications and fixed steps, not improvisation: South African or Swedish copper in the right sizes, full Armaflex insulation on both lines, a dry-nitrogen pressure test then a micron vacuum before charging, a correct drain slope that prevents dripping, and photo documentation of every stage on our system. Details in AC installation · AC maintenance.
The unit price includes delivery only within our service areas; installation, commissioning, warranty activation and after-sales service are a separate paid service, written clearly in the quotation together with any extra pipe length, preparation, chasing or scaffolding the site needs.
From our real installations
Photos from El Shora's work on the same type of unit; they show the installation standard you pay for, not this exact model.
Related guides
Common questions about the Carrier Optimax Inverter 5 HP Cool & Heat Split AC
How big a room does the Carrier Optimax Inverter 5 HP Cool & Heat Split AC cover?
This capacity (5 HP ≈ 36,000 BTU) covers 32 to 43 m² at a 2.8 m ceiling, based on 300 to 400 BTU per cubic metre. On a top floor or a sunny façade treat it as the minimum, and you can check with the AC calculator.
What is the price of the Carrier Optimax Inverter 5 HP Cool & Heat Split AC today?
EGP 91,400 for the unit including delivery only within our service areas (updated 12 September 2026). Installation, commissioning, warranty activation and after-sales are a separate paid service, written clearly in the quotation before any work.
Can I buy the unit and have someone else install it?
Of course; the price covers the unit and delivery only. Keep in mind that installation quality is what actually decides the compressor's life: the nitrogen pressure test, micron vacuum and full insulation are not cosmetic details, and warranty activation happens at commissioning.
Where do you deliver and how fast?
Delivery is included within our service areas in Cairo, Giza, the new cities and the coast. Because the warehouse is in 6th of October, deliveries to October, Zayed and nearby areas are scheduled faster, and in every case we confirm the appointment before dispatch.
What is the maximum distance between the indoor and outdoor units?
Per the manufacturer catalogue for this model: a maximum pipe run of 50 m and a maximum height difference of 25 m, with gas 5/8" and liquid 3/8" lines. Exceeding these reduces cooling and loads the compressor. The full table is at the pipe size page.
Is the unit genuine and invoiced?
Yes. El Shora is an authorized Carrier and Midea distributor; the unit is handed over with a registered serial number, a warranty certificate and an official invoice in your name. That is what keeps the warranty valid if you need it, and it is the difference from buying on the parallel market.
We serve your area
Supply, installation and maintenance run from our base in 6th of October, with appointments confirmed before the visit and photo documentation. Among the areas we serve: AC in Shorouk · AC in New Mansoura · AC in Mohandessin & Dokki · AC in Madinaty · all service areas.
Request a quotation · Contact us · El Shora, Carrier dealer
