Data Aire DAPA-2.5

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DAP IOM_10-2022

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Table of Contents3
Introduction7
Product Information7
Model Identification7
Inspection8
Paperwork8
Storage9
Suggested Reference Storage Room Conditions9
General Storage Considerations9
Registered Trademarks - Copy Rights - References Section10
Installation11
Recommended Tools for Installation12
Pre-Installation12
Installation Must be Planned so that12
Room Considerations13
Equipment Handling and Rigging14
Moving Unit into Final Location14
Rigging14
Locating the Unit14
Horizontal Airflow Units15
Installing/Mounting15
Vertical Airflow Units15
Figure 1 Typical Installation Methods16
Figure 2 Typical Installation Details16
Indoor Condensers and Condensing Units17
Piping17
Split Air-Cooled Unit Piping18
Discharge Lines18
Air18
Figure 3 Typical Discharge Check Valve19
Liquid Lines20
Suction Lines20
Recommended Line Sizing20
Table 1 Line Size Metric Conversion20
Hot Gas Lines21
Liquid Lines21
Suction Lines21
Table 2 Hot Gas Lines (Inches OD)21
Table 3 Liquid Lines (Inches OD))21
Table 4 Suction Lines (Inches OD)21
Connection Sizes, Air Cooled Units22
Connection Sizes, Water/Glycol Cooled Units22
Connection Sizes, Chilled Water Units22
Table 5 Connection Sizes, Air Cooled Units (Inches OD)22
Table 6 Connection Sizes, Water/Glycol Cooled Units (Inches OD)22
Table 7 Connection Sizes, Chilled Water Units (Inches OD)22
Field Piping, Remote Condenser/Condensing Unit above Evaporator23
Field Piping, Remote Condenser/ Condensing Unit below Evaporator24
Connection Sizes, Fluid Coolers (Dry Coolers)25
Auxiliary Chilled Water/Energy Saver Coil25
Auxiliary Chilled Water/Energy Saver Coil Piping25
Condensate Drain System26
Condensate Trap27
Figure 4 Recommended Condensate Trap Dimensions28
Condensate Pump Side Mounting Pump (Optional)29
Figure 5 Typical Side Pump Mounting29
Humidifier30
Steam Generator Humidifier30
Humidifier Piping30
Refrigerant Piping Protection30
Water/Glycol Cooled Unit Piping31
Figure 6 Typical Water/Glycol System32
Centrifugal Pump32
Leak Testing33
Electrical Installation33
Commissioning Information34
Electrical Connections35
General Electrical Field Wiring Guidelines36
Electrical Service37
Nameplate Ratings37
Grounding37
Voltage Tolerance37
Three Phase Voltage Tolerance37
Single-Phase Voltage Tolerance38
Heat Exchanger Auxiliary Control Wiring38
Table 8 Three Phase Voltage Tolerance38
Table 9 Single Phase Voltage Tolerance38
Remote Shutdown39
Mini-Dap4 Controller39
Remote Alarm Contacts39
Figure 7 Typical Remote Heat Exchanger Interconnection Points39
Figure 8 Typical Indoor Evaporator Interconnection Points39
Remote Sensors40
Condensate Pumps40
Disconnect Switch (Optional)40
Table 10 Remote Alarm Contacts Terminals40
Manual Override Switch Board41
Figure 9 Manual Override Switch Board41
Wiring Diagrams42
Installation of Remote Outdoor Heat Exchanger42
Charging43
Package Air-Cooled Systems43
Charging/Installation Work Procedures43
Triple Evacuation and Dehydration Procedure43
Tools Needed44
First Stage Evacuation44
Second Stage Evacuation45
Third Stage Evacuation45
Final Evacuation Stage46
General Pre-Charging Guidelines46
Voltage Phase Check47
Evaporator Power Phase Check47
Fixed Speed Scroll Compressor Phase Check47
Heat Exchanger Phase Check48
GHRC Air-Cooled Heat Exchanger Phase Check48
DARC Heat Exchangers Phase Check48
Line Set Charge Calculations48
Table 11 Liquid Line Multiplier48
Component Functional Test49
Charging Procedures49
Table 12 Liquid Line Multiplier for R-410A at Various Line Lengths49
Table 13 Liquid Line Multiplier for R-407C at Various Line Lengths49
Refrigerant Handling50
Air Cooled Split System Charging50
Controls50
Table 14 DAPA Starting Charge R-410A51
Table 15 DAPA Starting Charge R-407C51
Charging the Fixed Speed Compressor52
Table 16 Refrigerant Charge Values53
Additional Oil54
Flooded System Charging (Systems with Low Ambient Receiver Package)54
Refrigerant Receiver55
Applications55
Selection Guidelines55
Receiver Location56
Safety Relief Devices56
Receiver Installation56
Figure 10 Typical Low Ambient Receiver Package57
Charge Fixed Speed Compressor58
Water/Glycol-Cooled System Charging58
Table 17 Refrigerant Receiver Charging Chart58
Table 18 Discharge Head Pressure58
Important Refrigeration Components59
Thermal Expansion Valve59
Table 19 Packaged Units Without Receivers59
Table 20 Packaged Units with Receivers59
High Pressure Cutout Switch60
Low Pressure Cutout Switch60
Table 21 High Pressure Cutout Switch Setting60
Table 22 Low Pressure Cutout Switch Setting60
Liquid Line Solenoid Valve (Optional)61
Glycol Systems62
Glycol Concentration62
Internal (Fluid) Volume62
Fluid Cooler Internal Volume62
Fluid Coolers Have Individual Installation, Operation and Maintenance Manuals Which Should be Referred to for more Complete Details Regarding Remote Heat Exchangers62
Brazed-Plate Condensers62
Table 23 Mini-DAP Ceiling Unit Internal (Fluid) Volume62
Water Treatment63
Fluid Cooler64
Type L Copper Tubing Internal Volume64
Table 24 Type L Copper Tubing Internal Volume64
Corrosion64
Freezing Point of Aqueous Solutions65
Mixing Glycol and Water65
Table 25 Freezing Point of Aqueous Solutions65
Controls66
Mini-Dap4 Microprocessor Control Controller66
Optional Expanded Dap4 Microprocessor Controller66
Optional Thermostat66
Remote Heat Exchangers66
Heat66
3.6 Heat Exchanger66
Regular Maintenance Items67
Air Filters67
Belts67
Bearings67
Fuses68
Electric Reheat68
Humidifier68
Humidifier Canisters68
Refrigerant Filter Drier68
EC Plenum (Plug) Fans69
Electronically Commutated Motors69
EC Motor Testing70
Maintenance/Inspection Checklist71
Humidifier72
Piping72
Frequently Asked Questions - FAQ74
Electrical FAQ Section74
Mechanical FAQ Section75
Figure 11 Example Remote EPO Switch Connection75
Contact Data Aire78

Data Aire DAPA-2.5 - Page 81

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