Enviroair - T Series

SPECIFICATION 'T' SERIES

Cabinets
All components exposed to products of combustion are manufactured from aluminised steel. Exterior panels have a baked-paint finish.

Heat Exchanger
The Thermocore venturi tube heat exchanger assembly is manufactured from special grade aluminised steel. For applications using fresh air or where the temperature rise across the unit is less than 22^oC, optional stainless steel (AISI 409) heat exchangers are recommended.

Burners
Corrosion resistant aluminised steel burners with stainless steel ribbons are mounted in a slide-out burner tray. The burner tray withdraws from the left side of the unit (when facing the air discharge), opposite hand units are available as an option.

Gas and Safety Controls
Standard 'T' series models are fitted with a multi-function gas control valve permanent pilot and a thermoelectric safety control system. Fully automatic electronic ignition may be fitted as an option. An integral fan control delays the fan operation until the unit has reached operating temperature. The fan control also allows for fan overrun after the burners have switched off so that all residual heat is dissipated into the building.

A limit switch thermostat shuts down the heater in the event of overheating. For additional safety a dual limit thermostat is fitted on all EnviroAir units.

Air Handling
TA models are fitted with direct drive axial flow fans and single phase 230V motors. TA units are supplied complete with horizontal louvres.

TB and TE models are fitted with double inlet, centrifugal blowers, complete with belt drive. An adjustable pulley is fitted to allow small variations for on-site balancing. Standard units are fitted with single phase 230V motors, optional three phase motors are available for increased duty.

TB and TE are supplied as standard with a duct outlet flange for connection to ductwork. The data table indicates the airflow and static pressure available for ducted applications with the standard motor. For higher airflows or for static pressures up to 400 pascals, larger motors may be specified. The data table indicates the maximum airflows available, excluding filter and damper resistance.

TECHNICAL DATA

		75	100	125	150	175	200	225	250	300	350	400
NOMINAL HEAT OUTPUT	kW	17	23	29	35	41	47	52	59	70	81	93
GAS RATE G20 Nat Gas	m³/h	2.05	2.73	3.41	4.10	4.78	5.46	6.15	6.83	8.20	8.57	10.95
GAS CONNECTION	BSP in	¾	¾	¾	¾	¾	¾	¾	¾	¾	¾	¾
NOMINAL FLUE DIAMETER	mm	125	150	175	200	200	200	200	200	250	250	250
AXIAL FAN MODELS TA
AIRFLOW FREEBLOWING	m³/h	2040	2040	2460	3300	3300	4260	4260	5700	5700	6600	7560
MOTOR RATING	kW	0.34	0.34	0.34	0.34	0.34	0.47	0.47	0.58	0.58	0.82	0.82
MOUNTING HEIGHT	m	2.5	2.5	2.5- 3.0	2.5- 3.0	2.5- 3.0	2.5- 3.25	2.5- 3.25	2.5- 3.5	2.5- 3.5	2.5- 4.0	2.5- 4.0
THROW *	m	16	16	20	24	24	28	28	30	30	35	38
CENTRIFUGAL FAN MODELS TB & TE
AIRFLOW FREEBLOWING	m³/h	1908	2556	3384	3960	4068	5040	5616	6408	7668	8500	8856
MOUNTING HEIGHT	m	2.5- 3.0	3.0	3.0	3.0- 3.5	3.0- 3.5	3.0- 4.0	3.0- 4.0	3.0- 4.0	3.0- 4.5	3.0- 4.5	3.0- 5.0
THROW *	m	18	24	25	31	31	31	32	32	34	35	47
MOUNTING HEIGHT c/w 90°	m	-	3.0- 4.0	3.0- 5.0	3.0- 6.0	3.0- 6.0	3.5- 7.0	3.5- 7.0	3.5- 7.0	4.0- 8.0	4.0- 9.0	4.0- 10.0
STANDARD MOTOR	kW	0.37	0.37	0.37	0.37	0.37	0.56	0.75	0.75	1.10	1.10	1.10
AIRFLOW DUCTED (Standard Motor)	m³/h	1650	2040	2550	2900	3400	4250	4700	5100	5950	7300	7600
MAXIMUM PRESSURE (Standard Motor)	kW	250	250	200	150	100	100	100	150	200	100	100
MAXIMUM MOTOR SIZE	kW	1.1	1.1	1.1	1.5	1.5	2.2	2.2	3.0	3.0	3.0	3.0
MAXIMUM AIRFLOW	m³/h	3000	3000	4000	5000	5000	7200	7200	9000	9000	10,500	10,500
MAX PRESSURE AT MAXIMUM AIRFLOW	Pa	400	400	400	400	400	150	150	400	400	200	50
MAXIMUM AIRFLOW AT 400Pa	m³/h	3000	3000	4000	5000	5000	6400	6400	9000	9000	10,000	11,000

* Throw depends on height of building, mounting height of heater, room temperature and louvre settings.