Name: York CURBPAK CP23
Brand: York
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INSTALLATION, OPERATION & MAINTENANCE

CURBPAK

AIR HANDLING UNITS

New Release

Form 100.10-NOM2 (301)

MODELS CP65 THROUGH CP1030

ROOF MOUNTED SINGLE ZONE

00466vip

Table of Contents3
Introduction6
General6
Description6
Cutaway of Curbpak Showing Various Segments6
Receiving7
Storage8
Safety Practices8
Segment Identification9
Unit Nomenclature9
Segment Availability10
Installation11
Location11
Roof Pitch Limitations11
Curb Information11
Service Clearance11
Roof Curb Installation12
Curb Assembly12
Roof Curb13
Typical Curb Installation Assembled13
And Cross Sections13
Curb Calculations for Inside Dimensions13
Rigging14
Field Assembly - Shipping Split Section14
Installing Unit on Curb15
Isolators15
Splice Kit for Shipping Split Assembly15
Air System16
Duct Connection Guidelines16
Rubber-In Shear Isolator - no Adjustment16
Spring Isolator16
Standard Tie-Down / no Snubber16
Tie-Down Method16
Sound and Vibration Transmission17
Standard Tie-Down with Snubber17
Seismic Snubber17
Down Discharge Duct Connections17
Recommended Discharge Duct Arrangement When Turns Are Required17
Front Discharge Unit Installation18
Piping18
Coil Piping18
Duct Penetration of Roof18
Roof to Duct Installation - Horizontal Discharge18
Pipe Chase Enclosure19
Pipe Chase Enclosure Assembly for Units with Pipe Chase Shipped Loose19
Pipe Chase Installation20
Water Coils - Drainable Water20
Factory Coil Connections20
Heating Coils21
Steam Coils21
Direct Expansion Coils21
Air Velocity through Coils22
Condensate Drain Piping22
Condensate Drain Trap22
Typical DX Coil Piping22
Drain Trap Showing Water Location During Draw through Operation Stages22
Drain Trap Piping for Draw-Through Unit22
Belts and Sheaves23
Air Filters23
Drain Trap Showing Piping for Blow-Through Unit (Positive Pressure in Unit)23
Combining Drain Lines23
Sheave Alignment23
Door Handle Adjustment24
Air Flow Control Dampers24
Variable Inlet Vanes24
Typical Variable Inlet Vane Components24
Variable Inlet Vane Installed in Inlet Cone Airfoil Fan25
Typical Curbpak Operation in HVAC System26
Electrical Information26
Jack Shaft Crank Arm Position26
Torque Requirements to Operate Variable Inlet Van (VIV)26
Typical Motor Data / Nameplate27
Motor Control Configuration Diagram28
Motor Control Centrifugal Diagram28
Wiring Diagram Starter Panel29
Wiring Diagram 2 Speed - 2 Winding Starter Panel30
Wiring Diagram 2 Speed - 2 Winding30
Typical Electric Heater Wiring Diagram31
Typical Electric Heater31
Factory Installed Controls and Electrical Options32
Variable Air Volume Applications32
YORK Air-Modulator W/Options Panel32
Motor Starter Panel32
Factory Packaged Controls and Motor Control Center33
Typical Curbpak W/Factory-Packaged Controls or33
Single Point Motor Control Center33
Operation34
Startup Checklist34
Pre-Operational Check34
Temperature Limitations35
Static Pressure Limits35
Types of Centrifugal Fan Impellers35
Safety Check - "Warning36
Motors36
Belts36
Sheaves and Drives36
Locking Ring Variable Speed Sheaves36
Locking Ring Variable Pitch Sheaves36
Forward Curved/Airfoil Fan and Motor Data37
Forward Curved / Airfoil Fan and Motor Data37
FE-FC Return Fan Sizes38
FE - FC Return Fan Sizes38
Plenum Fan and Motor Data - FP39
Plenum Return Fan and Motor Data - FP(V) Economizer40
Maintenance41
General41
Periodic Maintenance41
Lubrication Lines41
Fan Bearing - Lubrication Intervals42
Motor Bearing - Lubrication Intervals42
Motor Bearing - Service Conditions42
Grease Fittings43
Motor Bearing - Lubrication Interval Multiplier43
Motor Bearing - Sizes and Types43
Motor Lubrication Procedure44
Variable Inlet Vanes44
Humidifiers44
Belts45
Belt Replacement45
Belt Tensioning45
Typical Drive Kit Data Tag45
Belt Tensioning Gauge45
Removal & Installation of Components46
FC Fan Shaft and Wheel Marking46
Airfoil Inlet Vane and Cone Assembly47
Bearing Locking Devices48
Bearing with Setscrew Type Locking Device48
Bearing with Eccentric Cam48
Bearing Installation49
Torque for Tightening Set Screws49
Coils50
Split Bearing50
Condensate Pan and Drain Line51
Freeze Protection51
Winterizing Drain Traps51
Determining Left - or Right-Hand Coil Connection51
Drive Side51
Filter Sizes and Quantity - Flat, Rigid, Bag and Hepa Filter52
Filters for FF, RF, BF and HF Segments52
Filter Sizes and Quantities - Flat, Rigid, Bag and HEPA Filters52
Filter Sizes and Quantity - Angle Filters53
Filters for AF Segment53
Filter Sizes and Quantities - Angle Filters53
Filter Sizes and Quantity - Tray Carbon Filters54
Filters for CF Segment54
Filter Sizes and Quantities - 1 Inch Tray Carbon Filters54
Gasketed, Modular Filter Holding Frames and Latches55
Universal Holding Frames and Latches55
Universal Frame Latch Selection56
Specifications56
Welded Bevel Seal Frame57
Gasket Protection57
Patented Visual Control Filter Clamps57
Welded Bevel Seal Filter Installation57
Bevel Seal Extrusion Sections57
Bevel Seal Extrusion Sections58
Visual Control Filter Clamps58
Bevel Seal Frame Bank58
Welded Bevel Seal Frame and Clips58
HEPA Filter Frame Cross Sections58
Service59
Troubleshooting59
Pitot Tube59
Construction of Pitot Tube59
Inclined Manometer60
Magnehelic Pressure Gauge60
U" Tube Manometer60
65 "U" Tube Manometers60
Duct Pressures and How They Work61
Slack-Tube Manometer61
Static Pressure - Air System61
Troubleshooting Chart63

Brand	York
Model	CURBPAK CP23
Category	Air Handlers
Language	English

York CURBPAK CP23 User Manual

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York CURBPAK CP23 Specifications

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