Thermo-Disc VAV ceiling diffusers

Products

VAV Diffusers

The thermo-disc diffuser is lightweight, easy to install and ideal as a retrofit solution. They aim to provide comfort in buildings that are mostly well ventilated, but experience specific areas that are either too hot or too cold and cause a reduction in comfort. This is often a result of internal factors such as computers, photocopiers and a high number of occupants but can also be attributed to a buildings orientation and lack of shading.

The thermo-disc diffusers are available in two styles; square to square and square to round, and neck sizes ranging from 150 to 300mm. Each neck size is available in finished dimensions of 495 and 595mm square.

The electronic wall/bulkhead diffusers are available in 2 heights, 100mm and 150mm. The 100mm size is available in lengths from 300 to 650mm and the 150mm size comes in lengths from 500 to 700mm.

Air Flow

Air flow movement from a Rickard Thermo-Disc ceiling diffuser in a typical office application

Range dimensions

Specifications and performance

Neck size (mm)	Style	Part Numbers			Neck Total Pressure (Pa)
Neck size (mm)	Style	495mm x 495mm	595mm x 595mm		20	30	40	50	60	70	80	90	100
150		VSD1504S495	VSD1504S595	Air flow (L/s)	63	77	88	99	108	117	125	133	140
		VSD1504S495	VSD1504S595	Throw (m)	2.0	2.1	2.7	3.0	3.3	3.5	3.7	4.0	4.2
		VCD1504S495	VCD1504S595	Throw (m)	2.0	2.1	2.7	3.0	3.3	3.5	3.7	4.0	4.2
		VCD1504S495	VCD1504S595	NC Level (NC)	-	-	-	-	26	28	31	33	35
200		VSD2004S495	VSD2004S595	Air flow (L/s)	96	118	137	153	169	184	195	207	218
		VSD2004S495	VSD2004S595	Throw (m)	2.0	2.6	3.0	3.2	3.6	3.9	4.2	4.5	4.7
		VCD2004S495	VCD2004S595	Throw (m)	2.0	2.6	3.0	3.2	3.6	3.9	4.2	4.5	4.7
		VCD2004S495	VCD2004S595	NC Level (NC)	-	27	28	29	30	33	36	38	40
250		VSD2504S495	VSD2504S595	Air flow (L/s)	140	171	198	221	242	261	279	296	313
		VSD2504S495	VSD2504S595	Throw (m)	2.4	2.6	3.2	3.5	3.9	4.2	4.5	4.7	5.1
		VCD2504S495	VCD2504S595	Throw (m)	2.4	2.6	3.2	3.5	3.9	4.2	4.5	4.7	5.1
		VCD2504S495	VCD2504S595	NC Level (NC)	-	27	29	31	33	36	38	40	42
300		VSD3004S495	VSD3004S595	Air flow (L/s)	176	216	250	280	307	332	355	377	398
		VSD3004S495	VSD3004S595	Throw (m)	2.5	2.8	3.3	3.7	4.2	4.6	4.8	5.2	5.4
		VCD3004S495	VCD3004S595	Throw (m)	2.5	2.8	3.3	3.7	4.2	4.6	4.8	5.2	5.4
		VCD3004S495	VCD3004S595	NC Level (NC)	27	28	30	32	35	37	39	41	43