COMBAT CTU-90 - Figure 4: Suspension Methods

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SECTION 6: HEATER INSTALLATION

13 of 46

Figure 4: Suspension Methods

10 mm

Steel

Drop Rod

Washer

Nut

Unistrut

Channel Nut

Cone Point

Set Pin

Window

Clamp

Unistrut

10 mm

Steel

Drop Rod

Nut

Washer

Riv

Nut

Support Points

Insure all suspension hardware

is torqued to a minimum

of 27 Nm (20 ft lbs)

Table of Contents

Default Chapter3
- Table of Contents3
Table of Figures8
Table of Contents8
SECTION 1: Heater Safety8
- Manpower Requirements8
- Safety Labels and Their Placement8
- Figure 1: Side and Back Panel Label Placement8
- Figure 2: Side Panel Label Placement9
SECTION 2: Installer Responsibility10
- Laminated Wall Plate10
- Corrosive Chemicals10
- National Standards and Applicable Regulations10
SECTION 3: Clearances to Combustibles11
- Required Clearances to Combustibles11
- Figure 3: Installation Clearances and Clearances to Combustibles12
SECTION 4: Critical Considerations13
- Ventilation13
- Gas Supply13
- Electrical Supply13
- Flue13
SECTION 5: Specifications14
- Ctua14
- CTUB, CTUC and CTUD15
- General Technical Data Table16
- Technical Data Table17
SECTION 6: Heater Installation18
- General18
- Basic Information18
- Location and Suspension18
- Handling18
- Suspension and Shelf Mounting18
- Figure 4: Suspension Methods19
SECTION 7: Flue Installation20
- Flue Installation20
- Type B Appliance20
- C 32 & C 62 Appliance20
- Figure 5: Flue and Roof Detail20
- Figure 6: Vertical and Horizontal Flue Termination21
- Figure 7: Vertical and Horizontal Flue Termination21
SECTION 8: Air Supply22
- Room Sealed Installation22
- Open Flued Installation22
- Building Ventilation22
- Isolated Equipment Rooms22
- Figure 8: Heaters Installed in Isolated Equipment Rooms22
SECTION 9: Optional Heater Configurations23
- Distribution Duct Work for CTUB, CTUC and CTUD Heaters23
- Figure 9: Ducting23
SECTION 10: Gas Pipe Work24
- Connections24
- Figure 10: Gas Connection with Stainless Steel Flex Connector25
SECTION 11: Wiring and Electrical Information26
- Electrical Supply26
- Remote Controls26
- CTUA Wiring Diagram (Models 75-115)27
- CTUB/C Wiring Diagram (Models 75-115)28
- CTUD Wiring Diagram (Models 75-115)29
- CTUD External Motor Alternative Wiring & Optional Thermostat/Time Switch30
SECTION 12: Commissioning31
- Pre-Commission Checks31
- Gas Supply31
- Mechanical Checks31
- Begin Commissioning32
- Figure 11: Sequence of Operation Chart32
- Combustion Testing33
- Turning off the Heater33
- Figure 12: Gas Valve for Heater (Models 75 - 115)33
- External Controls34
- Complete the Commissioning34
- Instruction to the User34
SECTION 13: User Instructions35
- User Instructions35
- Heater Operation35
- Figure 13: Heater Operating Sequence35
- Common User Controls36
- Lighting Instructions36
- Simple Fault Finding36
SECTION 14: Servicing37
- Servicing Instructions37
- Burner Maintenance37
- Fan/Motor Assembly Maintenance37
- Heat Exchanger Maintenance38
- Gas Control Valve Maintenance38
- Flue Fan38
- Maintenance Checklist38
SECTION 15: Conversion between Gases40
- General40
- Burner Conversion40
- Gas Valves40
SECTION 16: Troubleshooting41
- General42
- Troubleshooting for Automatic Ignition Burner Systems43
- Troubleshooting for Flame Supervision System44
- Troubleshooting for Solenoid Valves44
SECTION 17: Removal and Replacement Parts45
- Gas Valve45
- Burner Compartment46
- Ignition Electrode and Flame Probe48
- Flue Fan49
- Pressure Switch50
- Ignition Control51
- CTUA Axial Fan/Guard/Motor Assembly51
- CTUB & CTUC Centrifugal Fan/Guard/Motor Assembly51
- Fan Data52
- Figure 14: Centrifugal Fan Orientation52

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