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Installation, Commissioning,
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Operation & Service Manual
Models CTCU 7
CTCU 11
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TABLE OF CONTENTS SECTION 1: Heater Safety......................................................2 SECTION 13: Conversion Between Gases ..........................21 SECTION 2: Installer Responsibility .....................................2 13.1 General ....................................................................21 2.1 Clearances to Combustibles ........................................2 13.2 Burner Conversion ...................................................21 2.2 Corrosive Chemicals....
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TABLE OF FIGURES Figure 1: Installation Clearances and Clearances to Combustibles..............................................................4 Figure 2: Suspension Methods .................................................7 Figure 3: Shelf Mounting and Hanging Suspension..................8 Figure 4: Vertical Louvres (Optional) ........................................8 Figure 5: Flue and Roof Detail ..................................................9 Figure 6: Vertical and Horizontal Flue Termi
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® COMBAT Compact Tubular Unit Heaters are high efficiency heaters and are listed on the Enhanced Capital Allowance Scheme ’Energy Technology Product List’. The ETL symbol is a UK registered certification mark of The Carbon Trust. Product Approval
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® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL SECTION 1: HEATER SAFETY Your Safety is Important to Us! clearances to combustibles. Affix the tag on a wall This symbol is used throughout the near the heater. manual to notify you of possible fire, electrical or burn hazards. Please pay 2.2 Corrosive Chemicals special attention when reading and following the warnings in these sections. #$%& Installation, service and annual inspection of heater '
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SECTION 3: CRITICAL CONSIDERATIONS SECTION 3: CRITICAL CONSIDERATIONS 3.1 Basic Information 3.8 Flue CTCU heaters have automatic ignition burners for Choose heater siting to allow for the proper location ON/OFF operation only. of the flue. Each heater must be fitted with an individual and correctly sized sealed flue system (See Page 9, Section 6). 3.2 Location and Suspension No other appliance may be connected to the flue. All models: For room sealed installation, the air intake must be •
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® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL + ,
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SECTION 4: SPECIFICATIONS SECTION 4: SPECIFICATIONS 4.1 CTCUA (All Models) 6 ,/ //) 0 /6', %
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® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL 4.2 General Technical Data Table (All Models) Model CTCU-7 CTCU-11 CTCU-15 CTCU-22 CTCU-27 / 32 CTCUA, Axial Fans Total Electrical Load W 260 274 336 384 345 Run Current A 1.1 1.2 1.5 1.7 1.5 Start Current A 1.7 1.8 2.5 2.9 2.6 3 Air Flow m /h 1120 1220 2710 2750 4474 [NR] [31] [35] [39] [42] [42] Sound Pressure Level at 3 m dB(A) 37 41 45 48 48 Flue and AIr Intake Flue and Air Intake Size mm Ø 80 80 80 80 100 *Maximum
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SECTION 5: HEATER INSTALLATION SECTION 5: HEATER INSTALLATION 5.1 General 5.3 Wall Mounting Heaters are designed for installation above 1.8 m. For typical suspension, See Page 8, Figure 3. Heaters blowing parallel to the wall can only be These heaters must be installed within the heated installed with the service door away from the wall. space. Duct delivery systems are not permitted with axial fans. When handling or supporting the heater The wall mounting brackets must be attached to a fr
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® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL Figure 3: Shelf Mounting and Hanging Suspension * '% 1 * ',.
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SECTION 6: FLUE INSTALLATION SECTION 6: FLUE INSTALLATION 6.1 Changing Flue and Air Intake Orientation Figure 5: Flue and Roof Detail The heater is sold with horizontal flue and fresh air connections as standard. If vertical flue and fresh air connections are required, follow the instructions on 0 Page 29, Section 15.4.
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® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL Figure 6: Vertical and Horizontal Flue Termination - Type B Appliance 22 < $ '
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SECTION 7: AIR SUPPLY SECTION 7: AIR SUPPLY 7.1 Room Sealed Installation When installed as a room sealed heater, the air for combustion is drawn in from outside the building. It is important to ensure that there is adequate ventilation to provide air for the distribution fan. 7.2 Open Flued Installation It is important to ensure that there is adequate air supply at all times for both combustion and heating requirements in accordance with local and national codes. 7.2.1 Heaters Installed W
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® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL SECTION 8: GAS PIPING 8.1 Connections Connect the heater to the gas supply ensuring that the final connections are as follows: • Gas supply pipe work is run in medium or heavy gauge tubing in compliance with local and national codes. • The gas supply pipe is adequately sized to carry the total volume of gas for the complete installation. 1"2" • An isolating valve and union connection should 7# " %
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SECTION 9: WIRING AND ELECTRICAL INFORMATION SECTION 9: WIRING AND ELECTRICAL INFORMATION 9.1 Electrical Supply 9.2.3 Remote Frost Thermostat All heater models need a constant 230 V 50 Hz 1 Ø When required, connect to L and T parallel to the 1 2 supply connected to terminals L , N & Earth. room thermostat. Locate within the heated space 1 adjacent to the most vulnerable equipment that Polarity "L & N" must be correct. The voltage requires protection. See Page 14, Section 9.3. between neutral
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+A & &<&3 & &<&3 3 <3 +A *- *- , ,, , B ) (/ 0 7 , & &<&3 3 <3 +38 &'&< <1-'3*<< /0 - , 3A39< -*-<8&<1 & :&<3 - &1< +9- * 39 :<&'&< +9- ??- <1-'3*<< +38 -- D@-38 -: +A +/ *7 < <, , +/ *7 < <, , & - 39 : -9< -'3<-. 3 <1-'3*<< -'3<-3A39<& :&<&3 -'3<-3A39<-*-< ® COMBAT CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL 9.3 CTCUA Wiring Diagram Models 7 - 32 *&<
