
TABLE OF CONTENTS
SECTION 1: Air Handler Safety .............................................. 1
1.1 Description of Operation .............................................. 1
1.2 Inspection and Setup ................................................... 1
1.3 Safety Labels and Their Placement.............................. 2
1.4 California Proposition 65 .............................................. 2
SECTION 2: Installer Responsibility...................................... 3
2.1 Wall Tag ....................................................................... 3
2.2 Corrosive Chemicals.................................................... 3
2.3 National Standards and Applicable Codes................... 4
2.4 Required Equipment .................................................... 4
SECTION 3: Critical Considerations...................................... 5
3.1 Required Clearances to Combustibles......................... 5
3.2 Purge of Supply Duct ................................................... 6
3.3 Hardware ..................................................................... 6
SECTION 4: National Standards and Applicable Codes...... 7
4.1 Gas Codes................................................................... 7
4.2 Installation Codes ........................................................ 7
4.3 Aircraft Hangars ........................................................... 7
4.4 Parking Structures and Repair Garages ...................... 7
4.5 Electrical ...................................................................... 7
4.6 Venting ......................................................................... 7
4.7 High Altitude ................................................................ 7
SECTION 5: Specifications..................................................... 8
SECTION 6: Liftingan Air Handler....................................... 12
6.1 Lifting an Air Handler ................................................. 12
SECTION 7: Roof................................................................... 14
7.1 Roof Curb Assembly and Installation......................... 14
7.2 Air Handler Mounting to Roof Curb............................ 16
SECTION 8: Legs For Horizontal Mounting........................ 17
8.1 Leg Mounting............................................................. 17
8.2 Leg Mounting - Horizontal Air Handler....................... 17
SECTION 9: Upright Installation .......................................... 18
9.1 Upright Leg Assembly................................................ 18
9.2 Upright Installation..................................................... 21
9.3 Attaching Air Handler ................................................. 21
SECTION 10: Filter Section .................................................. 22
10.1 Filter Section Support Assembly Installation
(2010 - 2030)............................................................ 22
10.2 Filter Section Installation - Horizontal Air Handlers .. 23
10.3 Filter Section Installation - Upright Air Handlers.......23
SECTION 11: Inlet Hood........................................................ 24
11.1 Inlet Hood Assembly ................................................. 25
11.2 Inlet Hoods with Filter Rack Assembly...................... 26
SECTION 12: Dampers......................................................... 33
12.1 Discharge Damper...................................................34
12.2 Inlet Damper ............................................................ 34
SECTION 13: Discharge Heads and Splash Plates ............ 35
13.1 Three-Way Discharge Head Installation................... 35
13.2 Splash Plate Installation........................................... 36
SECTION 14: Duct Considerations...................................... 38
14.1 Inlet Duct Work ........................................................ 38
14.2 Return Duct Work .................................................... 38
14.3 Discharge Duct Work ............................................... 38
SECTION 15: Gas Piping...................................................... 39
15.1 Gas Manifolds .......................................................... 39
15.2 Gas Piping and Pressures ....................................... 39
15.3 Gas Manifold Venting ............................................... 39
15.4 Gas Piping ............................................................... 42
15.5 Pressure Test Ports .................................................. 42
15.6 Line Pressure Test - Leak Testing ............................ 42
SECTION 16: Electrical ......................................................... 43
16.1 Disconnect Fuse Sizing ........................................... 44
16.2 Wiring and Electrical Connections ........................... 44
16.3 Remote Panel .......................................................... 44
16.4 Motor Current Draw................................................. 44
16.5 Control Current Draw............................................... 45
16.6 Safety Systems........................................................ 45
16.7 Interlocks ................................................................. 48
16.8 Control Options........................................................ 48
SECTION 17: Sequence of Operation ................................. 50
17.1 Air Handler Configuration ......................................... 50
17.2 HVAC Remote Panels and Panel Options................ 52
17.3 InfinityPro™.............................................................. 54
17.4 Basic Air Handler Sequence of Operation................ 54
SECTION 18: Direct Fired Burner ........................................ 58
18.1 Direct Fired Burner Ignition...................................... 59
18.2 Direct Fired Burner Flame Proving (Flame Rod)...... 60
SECTION 19: Direct Fired Process Air Heaters .................. 61
19.1 Direct Fired Process Air Heater Models ................... 62
19.2 Installer's Responsibilities........................................ 62
19.3 Installer's Responsibility for Process Heaters
Connected to Paint Booths ...................................... 63
SECTION 20: Start-up Procedures ...................................... 64
20.1 Installation of Recirculating Air Handler................... 65
20.2 Mechanical .............................................................. 65
20.3 Electrical.................................................................. 66
20.4 Airflow...................................................................... 66
20.5 Gas Piping and Initial Pressure Settings.................. 67
20.6 Safety Shut Off Valve Check.................................... 69
20.7 Temperature Control System Calibration ................. 69
SECTION 21: Maintenance................................................... 72
21.1 General .................................................................... 73
21.2 Unit Exterior ............................................................. 73
21.3 Blower Section ........................................................ 73
21.4 Manifold and Controls .............................................. 76
21.5 Burner ..................................................................... 76
21.6 Optional Equipment ................................................. 77
SECTION 22: Replacement Parts ........................................ 78
SECTION 23: Troubleshooting............................................. 82
23.1 Initial Checks ........................................................... 83
23.2 Motor and Blower .................................................... 83
23.3 Burner...................................................................... 84
23.4 Temperature Controls .............................................. 85
23.5 A1014 Amplifier - Field Checklist.............................. 86
23.6 A44 Amplifier - Field Service Checklist.................... 88
SECTION 24: RAPID®2000-Series Start-Up Procedures... 90
SECTION 25: The RAPID®2000-Series Warranty................ 92