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© 2007 Roberts-Gordon, LLC
All rights reserved. No part of this work covered by the copyrights herein may be reproduced
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written permission of Roberts-Gordon, LLC.
Printed in U.K.
TABLE OF CONTENTS
SECTION 1: Heater Safety......................................................2
SECTION 2: Installer Responsibility .....................................2
2.1 Clearances to Combustibles........................................2
2.2 Corrosive Chemicals....................................................2
2.3 National Standards and Applicable Codes ..................2
SECTION 3: Critical Considerations .....................................3
3.1 Basic Information.........................................................3
3.2 Location and Suspension ............................................3
3.3 Minimum Required Installation Clearances .................3
3.4 Clearances to Combustibles........................................3
3.5 Ventilation....................................................................3
3.6 Gas Supply..................................................................3
3.7 Electrical Supply..........................................................3
3.8 Flue..............................................................................3
3.9 Coil Condense Drain....................................................3
SECTION 4: Specifications ....................................................5
4.1 DAT..............................................................................5
4.2 General Technical Data Table .....................................6
4.3 Technical Data Table - Heater Section.........................7
4.4 DualAir
®
Performance Data - Graph of Air Flows v
Static Pressure.............................................................8
SECTION 5: Heater Installation..............................................9
5.1 General........................................................................9
5.2 Handling ......................................................................9
5.3 Shelf Mounting and Suspension..................................9
SECTION 6: Flue Installation ............................................... 10
6.1 Flue Installation..........................................................10
6.2 Type C
12
, C
32
& C
62
Appliance....................................10
6.3 Type B
22
Appliance..................................................... 10
6.4 Converting from Top to Side Terminations for Flue
and Air Intake ............................................................10
SECTION 7: Air Supply.........................................................13
7.1 Room Sealed Installation ...........................................13
7.2 Open Flued Installation ..............................................13
7.3 Building Ventilation.....................................................13
7.4 Isolated Equipment Rooms ........................................13
SECTION 8: Optional Heater Configurations...................... 14
8.1 Distribution Duct ........................................................14
SECTION 9: Gas Piping........................................................15
9.1 Connections...............................................................15
SECTION 10: Wiring and Electrical Information.................16
10.1 Electrical Supply ......................................................16
10.2 Remote Control........................................................16
10.3 DAT Main Circuit Board Terminal Identification........17
10.4 DAT Wiring Diagram.................................................18
10.5 DAT Wiring Diagram.................................................19
10.6 DAT Site Connections at Main Circuit Board............20
SECTION 11: Commissioning..............................................21
11.1 Pre-Commission Checks ..........................................21
11.2 Gas Supply...............................................................21
11.3 Mechanical Checks...................................................21
11.4 Begin Commissioning...............................................21
11.5 Combustion Testing ..................................................23
11.6 Turning Off the DualAir
®
Unit ....................................24
11.7 External Controls ......................................................24
11.8 Complete the Commissioning...................................24
11.9 Instruction to the User ..............................................24
SECTION 12: User Instructions............................................25
12.1 User Instructions......................................................25
12.2 Heater Operation......................................................25
12.3 Common User Controls............................................25
12.4 Cooling Section Operation .......................................26
12.5 Heating Section Lighting Instructions.......................26
12.6 Simple Fault Finding.................................................26
SECTION 13: Servicing.........................................................28
13.1 Servicing Instructions...............................................28
13.2 Burner Maintenance.................................................28
13.3 Fan/Motor Assembly Maintenance...........................28
13.4 Heat Exchanger Maintenance..................................28
13.5 Gas Control Valve Maintenance...............................29
13.6 Flue Fan...................................................................29
SECTION 14: Conversion Between Gases..........................30
14.1 General ....................................................................30
14.2 Burner Conversion ...................................................30
14.3 Gas Valves...............................................................30
SECTION 15: Troubleshooting.............................................31
15.1 General ....................................................................31
15.2 Troubleshooting For Automatic Ignition Burner
Systems ...................................................................32
15.3 Troubleshooting for Flame Supervision System.......33
15.4 Troubleshooting for Solenoid Valves ........................34
15.5 Troubleshooting for Main Fan...................................34
15.6 Troubleshooting for Fan Contactor ...........................35
SECTION 16: Removal and Replacement Parts..................36
16.1 Gas Valve.................................................................36
16.2 Burner Compartment ...............................................37
16.3 Ignition Electrode and Flame Probe.........................38
16.4 Flue Fan...................................................................39
16.5 Heater Pressure Switch............................................40
16.6 Cooling Coil Safety Devices.....................................41
16.7 Ignition Control.........................................................42
16.8 Fan Motor Removal..................................................42
16.9 Combination Fan/Limit Thermostat..........................43