Description

The Twin Gamma Ultra Series of Mixed-Flow roof fans have been designed for use in commercial ducted exhaust applications. Incorporating twin vertical discharge fans, the unit provides 100% stand-by capacity.

These compact and low profile units are fitted with bird-mesh to prevent the entry of birds and vermin into the ducting or building.

They are available in 5 sizes, extending from 315 to 500mm diameter.

Typical Application
Exhaust air from a wide range of commercial applications such as factories, warehouses and workshops, change rooms, bulk goods retail outlets and assembly halls.

Features

Robust, lightweight construction.
Choice of speeds available.
Compact, low profile design.
Designed for vertical exhaust applications.
Backdraft-shutters are an optional extra (See special note).
Can be mounted at angle up to 30°.
Most 3-phase motors are 2-speed star/delta design

Note: Pressure loss across the shutter is now included in the performance curves.

Single Phase Models

Product Code	Diameter [mm]	Speed [rps]	kW	Amps	Avg. dB(A) @ 3m	Max Pressure [Pa]	Max Volume [m³/sec]
TGUE314	315	23	0.22	1.1	45	202	0.59
TGUE354	355	23	0.37	1.85	47	268	0.76
TGUE404	400	21	0.58	2.6	50	329	1.17
TGUE454	450	23	1.1	5.2	56	446	1.70
TGUE504	500	22	1.65	7.4	59	607	2.19
TGUE316	315	15	0.09	0.48	39	88	0.39
TGUE356	355	15	0.12	0.56	40	120	0.50
TGUE406	400	16	0.28	1.35	46	178	0.87
TGUE456	450	15	0.37	1.75	45	180	1.08
TGUE506	500	15	0.54	2.5	51	267	1.46

Three Phase Models

Product Code	Diameter [mm]	Speed [rps]	kW	Amps	Avg. dB(A) @ 3m	Max Pressure [Pa]	Max Volume [m³/sec]
TGUD314	315	23	0.21	0.5	45	215	0.59
TGUD354	355	23	0.33	0.68	46	277	0.75
TGUD404	400	22	0.54	1.2	50	338	1.19
TGUD454	450	23	1	1.95	56	432	1.66
TGUD504	500	21	1.45	2.8	58	539	2.05
TGUD316	315	15	0.09	0.26	39	89	0.39
TGUD356	355	16	0.13	0.36	40	122	0.50
TGUD406	400	15	0.22	0.56	45	166	0.83
TGUD456	450	15	0.32	0.7	45	186	1.07
TGUD506	500	14	0.48	0.88	50	244	1.40
TGUD318	315	13	0.05	0.11	36	68	0.34
TGUD358	355	13	0.07	0.14	36	90	0.44
TGUD408	400	11	0.13	0.28	38	89	0.62
TGUD458	450	9	0.19	0.39	33	62	0.64
TGUD508	500	11	0.31	0.5	43	133	0.88