New 4-way compact cassettes from Toshiba


13 December 2017
Toshiba has introduced a new range of 4-way compact cassettes.

The EcoDesign-compliant 7series includes five models for monosplit light commercial applications and six that are compatible with VRF system power ratings, with a nominal cooling power capacity up to 5.6 kW through the range.
The lower cooling range for the light commercial model is 2.5 kW whilst for VRF applications that have seen increased improvements in building design and insulation, a new 1.7 kW version is offered.

Heating capacity through both ranges is from 3.4 kW up to 5 kW for light commercial models, and from 1.9 kW up to 6.3 kW for VRF. Efficiency ratings meet the 2018 ErP-lot 6/21 as well as ErP lot 30 for electric motors and drives.

All models share the same main unit chassis dimensions of 575 x 575 mm, allowing easy access through a 600 mm panel. With the overall main unit height reduced to 256 mm (12 mm less than the previous 4series), installation in lower ceiling spaces is made possible. At 15 kg, single user installation is made easy and removable corner pieces make front face access to fixings straightforward.
In addition to five fan speed levels, each louvre can be individually set for swing operation allowing flexibility for airflow diffusion to suit office environments or to tune the air conditioning unit to the customer’s specific room requirements. Swing types available include dual swing or standard swing where all four louvres are timed together.
A new ‘cycle swing’ mode allows all four louvres to swing at different time intervals to give precise end user control over air flow direction and intensity. All settings can be set into memory and recalled for later use.

The 7series can be optionally equipped with an IR remote controller including a hand-held console with operational status visible on the ceiling panel corner pocket.

An occupancy motion sensor is also available with a 10 m range where the unit may be switched to standby mode or completely switched off when no movement is detected over a pre-set time period.

An optional I/O connection kit can be set-up to conditionally adjust airflow or cooling/heating modes depending upon third-party sensors input levels. It is also possible to report the cassette status and/or synchronise external events on associated equipment. In this way CO2 levels, outside temperature sensing or centralised HVAC control may be included as part of air conditioning management system.
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