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Operation & Service Manual
Model CTU
22 to 115
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TABLE OF CONTENTS SECTION 1: Heater Safety......................................................2 SECTION 12: User Instructions............................................28 SECTION 2: Installer Responsibility .....................................2 12.1 User Instructions ......................................................28 2.1 Clearances to Combustibles ........................................2 12.2 Heater Operation......................................................28 2.2 Corrosive Chemic
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TABLE OF FIGURES Figure 1: Installation Clearances and Clearances to Combustibles.............................................................4 Figure 2: Suspension Methods .................................................9 Figure 3: Flue and Roof Detail ................................................ 10 Figure 4: Air Intake Terminal Cover......................................... 10 Figure 5: Vertical and Horizontal Flue Termination - Type B22 Appliance ......................................
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Product Approval
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® COMBAT CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL SECTION 1: HEATER SAFETY Your Safety is Important to Us! 2.2 Corrosive Chemicals This symbol is used throughout the manual to notify you of possible fire, #$%& electrical or burn hazards. Please pay 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 CTU 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 10, 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 CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL + ,
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SECTION 4: SPECIFICATIONS SECTION 4: SPECIFICATIONS 4.1 CTUA
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1 2 , - .. $45( 16 7 1 // '(( $3 + # !$! & " * 8 , & , ) '(() !% Dimension Data - CTUA (All Models) Model 22 30 35 40 50 60 75 90 100 115 mm 1075 1075 1075 1075 1075 1075 1327 1327 1327 1327 A Width (in) (42.3) (42.3) (42.3) (42.3) (42.3) (42.3) (52.3) (52.3) (52.3) (
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® COMBAT CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL 4.2 CTUB, CTUC and CTUD &11 04 3 &&' 010 - 6 6 ()*+,-
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. Dimension Data - CTUB, CTUC and CTUD Model 22 30 35 40 50 60 75 90 100 115 mm 1026 1026 1026 1026 1026 1026 1076 1076 1076 1076 K CTUB Depth (in) (40.4) (40.4) (40.4) (40.4) (40.4) (40.4) (42.4) (42.4) (42.4) (
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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 3 Air Flow m /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] a
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® COMBAT CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL 4.4 Technical Data Table Appliance Category II 2H/L 3B/P Model CTU-22 CTU-30 CTU-35 CTU-40 CTU-50 CTU-60 CTU-75 CTU-90 CTU-100 CTU-115 Heat Input kW 27 33 39 48
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SECTION 5: HEATER INSTALLATION SECTION 5: HEATER INSTALLATION 5.1 General 5.3 Shelf Mounting and Suspension Heaters are designed for installation above 2.5 m. These heaters must be installed within the heated # + ,
space. Duct delivery systems are not permitted with axial fans. $ /0
5.2 Handling All CTU heaters are supplied secured to a wooden
! pallet and shrink wrapped. Use the pallet to support
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® COMBAT CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL SECTION 6: FLUE INSTALLATION 6.1 Flue Installation Figure 3: Flue and Roof Detail 7
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SECTION 6: FLUE INSTALLATION Figure 5: Vertical and Horizontal Flue Termination - Type B Appliance 22 ( $ -
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"% Model Concentric Flue Diameter 22-60 Cover (100mm) 150mm -
75-115 Cover (130mm) 200mm -
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® COMBAT CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL SECTION 7: AIR SUPPLY 7.1 Room Sealed Installation 7.3 Building Ventilation When installed as a room sealed heater, the air for Where ventilation is required, air must be taken from combustion is drawn in from outside the building. It an outside point where it is not likely to be is important to ensure that there is adequate contaminated or obstructed. ventilation to provide air for the distribution fan/s. Where natural ventil
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SECTION 8: OPTIONAL HEATER CONFIGURATIONS SECTION 8: OPTIONAL HEATER CONFIGURATIONS 8.1 Distribution Duct Work for CTUB, CTUC and 8.1.1 CTUD Heaters CTUD Heaters For CTUD heaters, it is essential that the airflow in CTUC heaters have the fans enclosed so that the the duct system is at least that specified in the Data heater may be connected to inlet ducting. Sheet on Page 6, Section 4.2 and in the correct direction across the heat exchanger as indicated by CTUD heaters are supplied with inle
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® COMBAT CTU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL SECTION 9: GAS PIPING 9.1 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.
• An isolating valve and union connection should
