Roberts Gorden CTU 22 TO 115 service manual General Technical Data Table

SECTION 4: SPECIFICATIONS

4.3 General Technical Data Table

Model CTU-22 CTU-30 CTU-35 CTU-40 CTU-50 CTU-60 CTU-75 CTU-90 CTU-100 CTU-115

CTUA With Axial Fan

Total Electrical Load	W	210	210	210	210	415	415	510	510	745	745
Run Current	A	1.0	1.0	1.0	1.0	1.72	1.72	1.9	1.9	3.2	3.2
Start Current	A	1.4	1.4	1.4	1.4	2.4	2.4	2.8	2.8	4.5	4.5
Air Flow	m3/h	3800	4000	4000	4000	5500	5500	7500	7500	11,000	11,000
Sound Pressure Level	[NR]	[51]	[51]	[51]	[51]	[52.1]	[52.1]	[52.3]	[52.3]	[52.3]	[52.3]
at 3 m	dB(A)	56	56	56	56	57.1	57.1	57.3	57.3	57.3	57.3
CTUB with Centrifugal Fan and CTUC Range with Centrifugal Fan and Duct Inlet
Total Electrical Load	W	550	550	550	550	1100	1100	1100	1100	1650	1650
Normal Run Current	A	4.6	4.6	4.6	4.6	11.0	11.0	11.0	11.0	15.6	15.6
Normal Start Current	A	9.0	9.0	9.0	9.0	13.5	13.5	13.5	13.5	19.2	19.2
Normal Speed		Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium	Medium
High Run Current	A	5.5	5.5	5.5	5.5	14.0	14.0	14.0	14.0	21.0	21.0
High Start Current	A	13.6	13.6	13.6	13.6	17.2	17.2	17.2	17.2	25.8	25.8
Air Flow	m3/h	3300	3300	3300	3300	5500	5500	6400	6400	9400	9400
Sound Pressure Level	[NR]	[59]	[59]	[59]	[59]	[61]	[61]	[62]	[62]	[63]	[63]
at 3 m	dB(A)	59.5	59.5	59.5	59.5	61.5	61.5	61.8	61.8	64.2	64.2
CTUD Duct Heater with No Fan
**Minimun Air Flow
Required	m3/h	3300	3300	3300	3300	5500	5500	6400	6400	9400	9400
Pressure Loss Across
Heat Exchanger	Pa	30	30	30	30	30	30	30	30	30	30
Flue and AIr Intake
Flue and Air Intake
Size	mm Ø	100	100	100	100	100	100	130	130	130	130
*Maximum Straight
Flue/Air Intake	m	7	8	8	10	13	15	15	17	20	20

Electrical load at 230 V 50 Hz measured by calculating from total run current of appliance.

*Do not exceed the maximum length of flue stated or heater may not operate properly. Reduce the maximum length stated by 1 m for each 90° bend installed.

**If minimum air flow requirements are not met, then temperature limit devices will shut down the heater.

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