FORM 100.10-NOM2
3
YORK INTERNATIONAL
TABLE OF CONTENTS
1
Introduction
General ...................................................................... 6
Description ................................................................ 6
Receiving ................................................................... 7
Storage ...................................................................... 8
Safety Practices ......................................................... 8
Segment Identification .............................................. 9
Unit Nomenclature .................................................... 9
Segment Availability ................................................ 10
2
Installation
Location ................................................................... 11
Roof Pitch Limitations ............................................. 11
Curb Information ...................................................... 11
Roof Curb Installation ............................................. 12
Roof Curb ................................................................ 13
Rigging .................................................................... 14
Field Assembly - Shipping Split Section ................ 14
Installing Unit On Curb ............................................ 15
Isolators ................................................................... 15
Air System ................................................................ 16
Duct Connection Guidelines ................................... 16
Sound and Vibration Transmission ....................... 17
Front Discharge Unit Installation ............................ 18
Piping ....................................................................... 18
Coil Piping ............................................................... 18
Pipe Chase Installation .......................................... 20
Water Coils - Drainable Water ................................ 20
Heating Coils ........................................................... 21
Steam Coils ............................................................. 21
Direct Expansion Coils ........................................... 21
Air Velocity Through Coils ....................................... 22
Condensate Drain Piping ....................................... 22
Condensate Drain Trap .......................................... 22
Belts And Sheaves .................................................. 23
Air Filters .................................................................. 23
Door Handle Adjustment ........................................ 24
Air Flow Control Dampers ....................................... 24
Variable Inlet Vanes ................................................. 24
Typical CurbPak Operation in
HVAC System ........................................................ 26
Electrical Information .............................................. 26
Motor Control Configuration Diagram .................... 28
Wiring Diagram Starter Panel ................................. 29
Wiring Diagram 2 Speed -
2 Winding Starter Panel ........................................ 30
Typical Electric Heater Wiring Diagram .................. 31
Factory Installed Controls And
Electrical Options .................................................. 32
Variable Air Volume Applications ............................ 32
Factory Packaged Controls and
Motor Control Center ............................................. 33
3
Operation
Startup Checklist ..................................................... 34
Pre-operational Check ............................................ 34
Temperature Limitations ......................................... 35
Static Pressure Limits ............................................. 35
Safety Check - “Warning” ........................................ 36
Motors ...................................................................... 36
Belts ......................................................................... 36
Sheaves And Drives ................................................ 36
Locking Ring Variable Speed Sheaves .................. 36
Forward Curved/Airfoil Fan and Motor Data ........... 37
FE-FC Return Fan Sizes ......................................... 38
Plenum Fan and Motor Data - FP ........................... 39
Plenum Return Fan and Motor Data -
FP(V) Economizer ................................................. 40
4
Maintenance
General .................................................................... 41
Periodic Maintenance ............................................. 41
Motor Lubrication Procedure ................................... 44
Variable Inlet Vanes ................................................. 44
Humidifiers .............................................................. 44
Belts ......................................................................... 45
Belt Replacement .................................................... 45
Belt Tensioning ........................................................ 45
Removal & Installation of Components ................. 46
Bearing Locking Devices ........................................ 48
Coils ......................................................................... 50
Condensate Pan and Drain Line ........................... 51
Freeze Protection .................................................... 51
Winterizing Drain Traps .......................................... 51
Filter Sizes and Quantity -
Flat, Rigid, Bag and Hepa Filter ........................... 52
Filter Sizes and Quantity -
Angle Filters .......................................................... 53
Filter Sizes and Quantity -
Tray Carbon Filters ............................................... 54
Gasketed, Modular Filter Holding Frames and Latches 55
Universal Frame Latch Selection ........................... 56
Specifications .......................................................... 56
Welded Bevel Seal Frame ...................................... 57
Gasket Protection .................................................... 57
Patented Visual Control Filter Clamps ................... 57
Bevel Seal Extrusion Sections ................................ 58
Visual Control Filter Clamps .................................. 58
Bevel Seal Frame Bank .......................................... 58
5
Service
Troubleshooting ...................................................... 59
Pitot Tube ................................................................. 59
Inclined Manometer ................................................ 60
Magnehelic Pressure Gauge .................................. 60
“U” Tube Manometer ............................................... 60
Duct Pressures and How They Work ..................... 61
Troubleshooting Chart ............................................ 63
