Hitachi airHome Multi Pro Multi Split Outdoor Unit R32 (2–5 Rooms)
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30-day return policy
Pickup available at F3 Castings Way, Leafbridge, Castings Way, Lincoln
Usually ready in 24 hours
Availability: please read before ordering
Hitachi outdoor units are supplied to order through our UK distributor, usually within 1–2 weeks. After you order we confirm stock and the delivery date before your order is processed. If the lead time does not work for you, you can cancel for a full refund.
Hitachi airHome Multi Pro Multi Split Outdoor Unit (R32)
The Hitachi airHome Multi Pro outdoor unit runs two to five airHome indoor units from one R32 inverter outdoor unit, with up to A+++ seasonal efficiency. Mix airHome 400, 600 and 800 wall units, cassettes, ducted and floor units to suit each room.
Key points
- 2, 3, 4 or 5 room outdoor units from 3.6kW to 10kW cooling
- Mix wall, cassette, ducted and floor airHome indoor units
- Up to A+++ seasonal efficiency (SEER 8.5 on the 2- and 3-room 5.5kW units)
- Single phase, R32 refrigerant
- Long pipe runs: up to 75m total on the 5-port units
What's included
- 1x Hitachi airHome Multi Pro outdoor unit
- Indoor units, pipework, cable, wall brackets or feet are not included
Models
| Model | Rooms | Cooling | Heating | SEER / SCOP | H×W×D mm | Max pipe total / height (m) | Fuse | Price inc VAT |
|---|---|---|---|---|---|---|---|---|
| RAM-G36N2HCE | 2 | 3.6kW | 4.4kW | 8.5 / 4.6 | 570×750×280 | 35 / 10 | 16A | £1,011.99 |
| RAM-G43N2HCE | 2 | 4.3kW | 5.2kW | 8.5 / 4.6 | 570×750×280 | 35 / 10 | 16A | £1,340.99 |
| RAM-G55N2HCE | 2 | 5.5kW | 6.8kW | 8.5 / 4.6 | 750×850×298 | 35 / 20 | 16A | £1,555.99 |
| RAM-G55N3HCE | 3 | 5.5kW | 6.8kW | 8.5 / 4.6 | 800×850×298 | 50 / 20 | 20A | £1,692.99 |
| RAM-G68N3HCE | 3 | 6.8kW | 8.5kW | 8.1 / 4.6 | 800×850×298 | 60 / 20 | 20A | £2,113.99 |
| RAM-G70N4HCE | 4 | 7.0kW | 8.5kW | 8.2 / 4.6 | 800×850×298 | 60 / 20 | 20A | £2,289.99 |
| RAM-G85N5HCE | 5 | 8.5kW | 10.0kW | 7.9 / 4.3 | 800×950×370 | 75 / 20 | 25A | £2,802.99 |
| RAM-G110N5HCE | 5 | 10.0kW | 12.0kW | 6.87 / 4.42 | 945×950×370 | 75 / 20 | 25A | £3,056.99 |
Source: Hitachi airHome price list and selection data supplied by Hitachi Cooling & Heating UK (2026). Pipe sizes per port: 3/8" gas, 1/4" liquid (the 4- and 5-port units also have 1/2" gas ports for larger indoor units).
Choosing indoor units
Each outdoor unit takes up to its number of ports in indoor units, and the total connected indoor capacity must be within Hitachi's limits for that outdoor unit. Compatible indoor units include the airHome 600 and airHome 400 multi split wall units. Send us your room list and we'll check the combination against Hitachi's selection data before you order.
F Gas installation requirement
This equipment contains or connects to R32 refrigerant and must be installed, pressure tested and commissioned by an F Gas certified engineer. You will be asked for your company and F Gas certificate details at checkout, and we verify them before dispatch or collection. Orders we cannot verify are cancelled and refunded in full. Electrical work must comply with BS 7671.
Delivery & collection
Heavy item: £100 delivery per order to a UK mainland address, or free collection from our Lincoln unit at Leafbridge Business Park.
Shop the Hitachi airHome range
Add an airHome indoor unit for each room.
- Hitachi airHome 600 multi split wall unit 1.5–7kW
- Hitachi airHome 400 multi split wall unit 1.5–7kW
- Hitachi airHome 600 wall mounted system 2–7kW
- Hitachi airHome 400 wall mounted system 2–7kW
Also see condensate pumps, trunking, all multi split systems and the Hitachi air conditioning page.
PDF Downloads
Manufacturer documents for this product.