iCOOL 4HP CO₂
CO₂ transcritical condensing unit — medium temperature
A medium-temperature-only machine for chilled duty. If you need low temperature or heat recovery as well, the 4HP MT/LT unit is the one to specify — this one does chilled work and nothing else, which is why it costs less.
What this unit gives you
It follows the load
Inverter driven, so it modulates between 3.45 and 6.90 kW instead of cycling on and off. Quieter, steadier box temperatures, and less wear.
No refrigerant cliff edge
CO₂ has a GWP of 1 and sits outside the Kigali phase-down. There is no future date at which this machine becomes expensive to refill.
Built for the heat
Rated to +43 °C ambient as standard. Salt-proof coating is available for coastal sites, which in this country is most of them.
Put it where it suits
Up to 50 m of pipe between the unit and the rooms it serves, so the plant can sit out of the way of the operation.
Talks to your BMS
Modbus over RS485, and it works with the usual monitoring systems. You can see what it is doing without standing next to it.
Capacity
| Cooling capacity — medium temperature | 3.45 – 6.90 kW |
| 70% design point (MT) | 4.83 kW |
| Cooling capacity — low temperature | Not available on this model |
Electrical
| Power supply | 380 / 400 / 415 V · three phase · 50 Hz |
| Power input | 4.00 kW |
| Nominal running current | 6.14 A |
| Sound pressure | 33 dB(A) at 1 m |
Refrigeration
| Refrigerant | R744 (CO₂) — GWP 1, ODP 0 |
| Compressor | Panasonic 2-stage rotary, inverter driven |
| Evaporating temperature | −20 °C to −5 °C |
| Ambient operating range | −15 °C to +43 °C |
| Heat recovery port | Not on this model |
| Suction connection | 1/2″ (12.70 mm) |
| Liquid connection | 3/8″ (9.52 mm) |
| Maximum pipe run | 50 m |
| Design pressure — liquid line | 8 MPa |
| Design pressure — suction line | 8 MPa |
Physical
| Dimensions (H × W × D) | 948 × 1143 × 609 mm |
| Net weight | 136 kg |
| Air flow | 59 m³/min |
| External static pressure | 50 Pa |
| Pressure equipment | PED Category II |
Where it fits
Chilled rooms, serve-over counters, a supermarket’s fresh aisle. Straight chilled duty where nothing on the site needs freezing.
How to size it
Use the 70% figure, not the maximum
The capacity above is a range because the compressor modulates. The 70% design point is what to size against: it leaves headroom for a hot afternoon and a full box, without specifying a machine so large it short-cycles at three in the morning.
Medium and low temperature are different duties
Medium temperature is chilled work, roughly −10 °C evaporating. Low temperature is frozen, down to −35 °C. A unit rated for both carries a smaller number on the frozen side, because moving heat from colder is harder. Size each room against the right column.
Tell us the site, not just the kilowatts
Design ambient in Manila is not design ambient in Munich, and a catalogue figure taken at 32 °C will flatter any machine. Send us the room sizes, the product, the door traffic and the location and we will size it against conditions you will actually see.
Options worth asking about
Salt-proof coating
An anti-corrosion fin treatment for coastal and tropical sites. On an archipelago this is not an exotic extra — it is the difference between a coil that lasts and one that does not.
Adiabatic pre-cooling
For sites that run past the standard ambient envelope, a pre-cooling stage holds capacity through the worst of the afternoon.
Want this sized against your site?
Send us the rooms and the product. We will come back with a sizing and what it costs to run.
Frequently asked questions
Why is the capacity given as a range?
Because the compressor is inverter-driven, so the machine modulates instead of switching on and off. The iCOOL 4HP CO₂ runs anywhere between 3.45 kW and 6.90 kW at medium temperature. Quoting only the top of that range would tell you what it can do flat out, not what it does on your site. Size on the 70% figure and you have headroom for a hot day without a machine that spends its life cycling.
Is CO₂ safe, and what happens when the rules change?
CO₂ (R744) is non-flammable and non-toxic, with a GWP of 1 and an ODP of zero. It sits outside the Kigali phase-down entirely, so there is no future date at which this machine becomes expensive to service or illegal to refill — which is not true of the HFC plant it replaces.
Will it hold up in Philippine heat?
The envelope runs to +43 °C ambient. Above that, an adiabatic pre-cooling stage is available. Tell us the site and we will size it against real local design conditions rather than a European catalogue figure.