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Weather-Rite LLC
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TABLE OF CONTENTS
SECTION 1: Air Handler Safety.............................................. 1
1.1 Description of Operation...............................................1
1.2 Inspection and Setup ................................................... 1
1. 3 S a fe t y L a bels and Their Placement ............................. 2
1.4 California Proposition 65 .............................................. 2
1. 5 L a bel Placement .......................................................... 2
SECTION 2: Installer Responsibility ..................................... 8
2.1 Corrosive Chemicals.................................................... 8
2.2 Required Equipment .................................................... 8
SECTION 3: Critical Considerations ................................... 10
3.1 Required Clearances to Combustibles....................... 10
3.2 Purge of Supply Duct ................................................. 10
3.3 Hardware ................................................................... 10
SECTION 4: National Standards and Applicable Codes ... 11
4.1 Fuel Codes................................................................. 11
4.2 Installation Codes ...................................................... 11
4.3 Aircraft Hangars ......................................................... 11
4.4 Parking Structures and Repair Garages .................... 11
4.5 Electrical .................................................................... 11
4.6 Venting....................................................................... 11
4.7 High Altitude .............................................................. 11
SECTION 5: Specifications .................................................. 12
SECTION 6: Liftingan Air Handler ...................................... 27
6.1 Lifting an Air Handler ................................................. 27
SECTION 7: Air Handler Assembly...................................... 30
SECTION 8: VIBRATION ISOLATION ................................... 33
8.1 Pad Isolator for Curb-Mounted Air Handler................ 33
8.2 Neoprene or Spring Isolators for Hanging-Mounted
Air Handler................................................................. 35
8.3 Neoprene or Spring Isolators for Pad-Mounted Air
Handlers.................................................................................. 39
SECTION 9: Roof Curb ......................................................... 47
9.1 Roof CurbAssembly and Installation......................... 47
9.2 Air Handler Mounting to Roof Curb............................ 49
SECTION 10: Upright Stand ................................................. 50
10.1 Upright Stand ........................................................... 50
10.2 Upright Stand Installation.........................................50
10.3 Attaching Air Handler to Stand................................. 50
SECTION 11: Vertical mountingLegs ................................. 55
11.1 Attaching Legs to Air Handler ................................... 55
11.2 Attaching Legs to Slab.............................................. 55
SECTION 12: Filter Section .................................................. 57
12.1 Filter Section Installation - Horizontal Air Handlers.. 58
12.2 Filter Section Installation - Upright Air Handlers ......59
SECTION 13: Inlet Hoods ..................................................... 60
13.1 Inlet Hood Installation (Models TT112 - TT215) ....... 61
13.2 Inlet Hood Assembly (Models TT218 and TT221) ... 62
13.3 Inlet Hood Installation (Models TT224 and TT230) . 63
13.4 Inlet Hood Installation (Models TT233 and TT236) . 67
SECTION 14: Service Platform............................................. 68
SECTION 15: Dampers ......................................................... 70
15.1 Discharge Damper Installation................................. 70
15.2 Inlet Damper Installation.......................................... 71
SECTION 16: Discharge plenum and Discharge Louvers. 73
16.1 Four-Way Discharge Plenum Installation ................. 73
16.2 Double Deflection Discharge Louver Installation ......74
SECTION 17: Duct Considerations .................................... 75
17.1 Inlet Air Duct............................................................. 76
17.2 Return Air Duct......................................................... 76
17.3 Discharge Duct Work ............................................... 76
SECTION 18: Gas Piping...................................................... 77
18.1 Gas Manifolds.......................................................... 77
18.2 Gas Piping and Pressures ....................................... 77
18.3 Gas Manifold Venting............................................... 78
18.4 Gas Piping ............................................................... 83
18.5 Pressure Test Ports.................................................. 83
18.6 Line Pressure Test - Leak Testing............................ 84
SECTION 19: Electrical......................................................... 85
19.1 Wiring and Electrical Connections ........................... 85
19.2 Remote Panel .......................................................... 85
19.3 Motor Current Draw................................................. 85
19.4 Control Current Draw............................................... 85
19.5 Safety Systems........................................................ 86
SECTION 20: Sequence of Operation ................................. 87
20.1 Air Handler Configuration ........................................ 87
20.2 Remote Panel Options............................................. 88
20.3 Basic Sequence of Operation.................................. 90
20.4 Flame Control .......................................................... 90
20.5 Air Volume Control Options ..................................... 99
20.6 Night Setback Options............................................101
20.7 Other Control Options............................................ 102
SECTION 21: Temperature Controls ................................. 104
21.1 System OverviewFor All Series............................. 104
SECTION 22: Direct Fired Burner ...................................... 108
22.1 Direct Fired Burner Ignition.................................... 109
22.2 Direct Fired Burner Flame Proving (Flame Rod) ....110
22.3 Direct Fired Burner Flame Proving
(Ultra Violet Scanner) ............................................. 111
SECTION 23: Direct fired process air heaters...................112
23.1 Direct Fired Process Air Heater Models..................113
23.2 Installer's Responsibilities ......................................113
23.3 Installer's Responsibility for Process Heaters
Connected to Paint Booths .....................................114
23.4 WEATHER-RITE™Control Packages .....................115
SECTION 24: Start-up Procedures .................................... 122
24.1 Installation of Recirculating Air Handler................. 123
24.2 Mechanical ............................................................ 123
24.3 Electrical................................................................ 124
24.4 Airflow.................................................................... 124
24.5 Gas Piping and Initial Pressure Settings................ 127
24.6 Safety Shut Off Valve Check.................................. 131
24.7 Air Volume Control................................................. 131
Printed in U.S.A.
