DU/SD SERIES INSTALL OPERATION MAINTENANCE MANUAL
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SAFETY
1.0 Introduction
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1.1 General Safety Information
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1.1.1 Handling The Unit
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1.1.2 Positioning The Heater
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1.1.3 Combustibles
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1.1.4 Wiring Electrical
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1.1.5 Occupational Health And Safety
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1.1.6 Gas Piping
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1.1.7 Commissioning, Recommissioning, Decommissioning 4
1.1.8 Operational Safety
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1.1.9 Gas Compliance
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1.1.10 Safety Points To Consider
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GENERAL INFORMATION
2.1 Unit Overview
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2.2 Equipment Receipt
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2.3 Factory Unit Test
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2.4.1 Unit And Component Identification
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2.4.2 Construction
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2.4.3 Blower
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2.4.4 Fan Motors
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2.4.5 Pulleys
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2.4.6 Dampers
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2.4.7 Electrical Control And Connection
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INSTALLATION INFORMATION
3.0 Installation Information
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3.1 Model Variations And Dimensions
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3.1.1 Dimensions - Single Exchanger No Blower DU / SD
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3.1.2 Dimensions - Single Exchanger With Blower DU / SD 11
3.1.3 Dimensions - Dual Exchanger No Blower DU / SD
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3.1.4 Dimensions - Dual Exchanger With Blower DU / SD
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3.2 Installation
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3.2.1 Location
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3.2.2 Clearance Around Unit
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3.2.3 Plant Room
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3.2.4 Weight And Location
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3.2.5 Lifting
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3.2.6 Positioning And Securing
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3.2.7 Duct Connections
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3.2.8 Flue Connections
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3.3 Electrical Connections
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3.3.1 Electrical Supply
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3.3.2 User Control Configuration Options
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3.3.3 Blower / Fan Setup
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3.3.4 Electrical Differences For Dual Heat Exchangers
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3.4 Gas Connections
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3.4.1 Gas Supply
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3.4.2 LPG
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3.4.3 Gas Supply For Dual Heat Exchangers
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3.4.4 Gas Train Information
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3.4.5 Gas Pressure Valve
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3.4.6 Operating Pressure Of The Gas Valve
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3.4.7 Setting Gas Valve Pressure
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3.4.8 Setting The Modulating Valve Motor
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3.4.9 Pilot Injector Setup
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3.4.10 Aeration Plates
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COMMISSIONING INFORMATION
4.1 Unit Details
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4.2 General Installation Check
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4.3 Electrical Checks
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4.3.1 Electrical Installation Checks
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4.3.2 Blower Box Checks
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4.4 Gas Checks
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4.4 1 Incoming Gas Supply Checks
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4.4.2 Gas Train Check
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4.4.3 Setting The Modulating Valve Motor
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4.4.4 Modulating Motor Operational Check
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4.5 Setting Controls
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4.5.1 High Limit Control
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4.5.2 Thermostat And User Controls
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4.5.3 RLU Screens
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4.6 Flow Adjustment Through Lever And Damper Blades
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4.7 General Operation
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4.8 Setting Unit Functional Parameters
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4.9 Commissioning Results
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OPERATING INSTRUCTIONS
5.1 Startup - Wall Switch Units To Provide Heat
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5.2 Startup - Wall Switch Units To Provide Ventilation
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5.3 Shutdown - Wall Switch Units Providing Heat
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5.4 Shutdown - Wall Switch Units Providing Ventilation
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5.5 BMS Startup And Shutdown
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5.6 Operational Flowchart
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5.6.1 Heating Flowchart
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UNIT MAINTENANCE
6.0 Service And Maintenance
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6.1 Heater Maintenance
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6.1.1 Heater Maintenance
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6.2 Major Service/Component Replacement Process
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6.2.1 Electrical Components
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6.2.1.1 Electrical Wiring
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6.2.1.2 Isolator Fitted And Operational
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6.2.1.3 Single Or 3 Phase Power Test
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6.2.1.4 Overtemp Control Switch
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6.2.1.5 Thermostat Fitted And Operational
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6.2.1.6 Fan And Motor
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6.2.1.7 Belts
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6.2.1.8 Pulleys
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6.2.1.9 Fan Direction
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6.2.2 Gas Components
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6.2.2.1 Gas Controls
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6.2.2.2 Gas Connection Visual Inspection
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6.2.2.3 Gas Isolation Fitted
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6.2.2.4 Gas Supply Pressure
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6.2.2.5 Gas Burner Pressure (High/Low)
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6.2.2.6 Gas Injectors
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6.2.2.7 Draft Diverters
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6.2.2.8 Pilot Assembly
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6.2.2.8.1 Cleaning Pilot Burner:
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6.2.2.9 Leaving Air Sensor
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6.2.3 Casing Components
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6.2.3.1 Weatherproof Casing Condition
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6.2.3.2 Duct Condition
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6.2.3.3 General Installation
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6.2.3.4 Access To Unit
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6.2.3.5 Maintenance Records
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6.3 Fault Finding
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6.3.1 Fault Finding Heater
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6.4 Replacement Parts List
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APPENDIX
A: AGA Type B Information
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B: Electrical Information
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C: Gas Train Information
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D: Commissioning Report
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E: Temperature Rise Over Heat Exchanger
E1 - Leaving Air Temp Exceeds 40°C
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E2 - Set Temperature Cannot Be Reached
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E3 - Set Temperature Achieved, Modulating Controls Temp 48
F: Maintenance
F1 - Maintenance Schedule
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F2 - Monthly Maintenance Check
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F3 - Maintenance Checklist
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G: Warranty Information
G1 - How To Register Your Product Warranty
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G2 - Warranty Terms And Information
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H: Release Information
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CONTENTS
