COMBAT® CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL
4.2 General Technical Data Table (All Models)
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CTCUA, Axial Fans |
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Total Electrical Load | W | 260 | 274 | 336 | 384 | 345 |
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Run Current | A | 1.1 | 1.2 | 1.5 | 1.7 | 1.5 |
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Start Current | A | 1.7 | 1.8 | 2.5 | 2.9 | 2.6 |
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Air Flow | m3/h | 1120 | 1220 | 2710 | 2750 | 4474 |
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| [NR] | [31] | [35] | [39] | [42] | [42] |
Sound Pressure Level at 3 m | dB(A) | 37 | 41 | 45 | 48 | 48 |
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Flue and AIr Intake |
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Flue and Air Intake Size | mm Ø | 80 | 80 | 80 | 80 | 100 |
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*Maximum Straight Flue/Air Intake | m | 2.5 | 4 | 5 | 5 | 5 |
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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.
4.3Technical Data Table (All Models) Appliance Category II 2H/L 3B/P
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Heat Input | kW | 8.5 | 13.4 | 18.3 | 27.5 | 33 | 38.5 |
Gross CV | (Btu/h) x (1000) | 29 | 46 | 62 | 94 | 113 | 131 |
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Heat Input | kW | 7.7 | 12.1 | 16.5 | 24.8 | 29.7 | 34.7 |
Net CV | (Btu/h) x (1000) | 26 | 41 | 56 | 85 | 101 | 118 |
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Approximate | kW | 7.1 | 11.1 | 15.1 | 23 | 27.2 | 31.7 |
Heat Output | (Btu/h) x (1000) | 24 | 38 | 52 | 78 | 93 | 108 |
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Natural Gas (G20) Data - Inlet Pressure 20 mbar (7.8 in WG) Min. 17 mbar (6.8 in WG) Max. 25 mbar (10 in WG) | |||||||
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Burner Pressure | mbar | 9.5 | 9.5 | 9.5 | 9.5 | 9.0 | 9.0 |
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Gas Rate | m3/h | 0.8 | 1.3 | 1.7 | 2.6 | 3.1 | 3.6 |
ft3/h | 29 | 45 | 62 | 93 | 110 | 127 | |
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Natural Gas (G25) Data - Inlet Pressure 25 mbar (10 in WG) Min. 20 mbar (7.8 in WG) Max. 30 mbar (12 in WG) | |||||||
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Burner Pressure | mbar | 9.0 | 9.0 | 9.5 | 9.2 | 9.2 | 9.3 |
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Gas Rate | m3/h | 0.9 | 1.5 | 2.0 | 3 | 3.6 | 4.2 |
ft3/h | 33 | 52 | 72 | 108 | 127 | 148 | |
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LPG / Propane (G31) Data - Inlet Pressure 37 mbar (14.6 WG) Min. 25 mbar (10 in WG) Max. 45 mbar (18 in WG) | |||||||
Alternative where permitted 50 mbar (20 in WG) Min. 42.5 bar (17 in WG) Max. 57.5 mbar (23 in WG) |
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Burner Pressure | mbar | 25.6 | 29.4 | 29.4 | 28.6 | 29.9 | 29.9 |
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| m3/h | 0.3 | 0.5 | 0.7 | 1 | 1.2 | 1.4 |
Gas Rate | kg3/h | 0.16 | 0.25 | 0.34 | 0.51 | .61 | .71 |
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LPG / Butane (G30) Data - Inlet Pressure 29 mbar (11,4 in WG) Min. 20 mbar (7.8 in WG) Max. 35 mbar (13.8 WG)
Burner Pressure | mbar | 19.2 | 21.9 | 22.9 | 21.4 | 21.4 | 22.4 |
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| m3/h | 0.2 | 0.4 | 0.5 | 0.8 | .9 | 1.1 |
Gas Rate | kg3/h | 0.09 | 0.14 | 0.19 | 0.29 | .34 | .42 |
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Gas rates corrected to standard conditions 1013.25 mbar 15° C.
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