Trane Modular 20 to 35 Tons Liste des pièces Page 85
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PKG-PRC003U-EN 85
Mechanical Specifications
Dual Point PowerTerminal Blocks
Two separate power terminal blocks are available to bring power to the unit. One terminal block
provides power to the compressors and the other provides power to the controls and fan motor.
Note: A single point-power terminal block is standard.
Flexible Horizontal Discharge Plenum, Low and Standard Height
Units are provided with a ship separate or factory installed horizontal discharge plenum that
permits multi-directional duct connections.The plenum is insulated with two inches of 1.75 lb.
density fiberglass for sound attenuation. Discharge openings can either be field cut or factory cut
(a two-inch duct collar is provided with factory cut holes). Plenums are also available with double
wall perf.
High Duct Temperature Thermostat
A factory-supplied temperature limit switch with reset element detects the supply air duct
temperature.This sensor should be field-installed downstream from the unit’s discharge in the
supply air duct. If the supply air duct temperature exceeds 240°F, the unit shuts down and displays
a diagnostic. A manual reset is required at the unit.The high duct temperature can be adjusted at
the thermostat.
Plenum High Static Switch
A factory supplied sensor provides additional protection from ductwork over-pressurization.This
sensor should be field-installed downstream of the unit’s discharge in the supply air duct.
Protective Coating
The unit exterior and exposed interior surfaces have a four to six mil coat of protective coating.
A three to five mil coat of protective coating is applied to the coil using a multiple dip-and-bake
process.
Cupro-Nickel Condenser
One condenser is provided for each compressor.The condensers are a shell-and-tube design with
removable heads to allow tubes easy mechanical cleaning.Tubes are ¾-inch OD and constructed
of copper cupro-nickel (90/10).
Stainless Steel Drain Pan
The drain pan is positively sloped, fabricated from 304L stainless steel, and insulated with ¾-inch
of 1-lb. density fiberglass.The drain pan contains a factory piped trap with cleanout.
Dirty Filter Sensor
A factory installed pressure switch senses the pressure differential across the filters. When the
differential pressure exceeds 0.9-inches WG, contact closure occurs.
A field installed indicator device may be wired to relay terminals to indicate when filter service is
required. Contacts are rated at 115 VAC and are powered by a field supplied transformer.
Medium Efficiency Filters
Two-inch medium efficiency throwaway fiberglass filters are installed in the unit filter section.
Remote Human Interface Panel
The remote human interface panel (RHI) can perform all the same functions as the unit mounted
human interface panel, except the service mode function. A single RHI can monitor and control up
to four units.The panel includesa2x40character clear English display, a red LED light to indicate
an alarm condition, a simple 16-key keypad for making unit setpoint and configuration changes,
and hinged access door.The panel can be mounted up to 5,000 feet from the unit and is wired to
- Product Catalog 1
- Introduction 2
- Table of Contents 3
- 6 PKG-PRC003U-EN 6
- Enhanced Serviceability 7
- Standard Features 7
- Standard Control Features 7
- Optional Features 8
- Field Installed Accessories 8
- Features and Benefits 10
- Interoperability with BACnet 10
- LowTorque Variation 11
- Suction Gas Cooled Motor 11
- Application Considerations 12
- Isolation Recommendations 14
- Condenser Water Piping 15
- 16 PKG-PRC003U-EN 16
- Selection Procedure 17
- Unit Selection 18
- Model Number Descriptions 19
- Self-Contained Ship 21
- With Accessory 21
- Model Number 21
- Remote Air-Cooled 21
- Condenser 21
- General Data 22
- Performance Data 25
- Waterside Pressure Drop 28
- Water-Cooled Unit Performance 30
- 25-ton Water-Cooled 32
- 30-ton Water-Cooled 34
- 35-ton Water-Cooled 36
- Air-Cooled Unit Performance 38
- 25-ton Air-Cooled 39
- 32-ton Air-Cooled 40
- Heating Performance 41
- Controls 42
- Analog inputs 43
- Binary inputs 43
- Binary output 43
- Human Interface Panel (HI) 44
- Morning Warmup 45
- Ventilation Override (VOM) 45
- Demand Limiting Binary Input 47
- 48 PKG-PRC003U-EN 48
- Airside Options 49
- Cooling/Airside Economizer 50
- Heating: Electric 50
- Supply Air Tempering 50
- PKG-PRC003U-EN 51 51
- 52 PKG-PRC003U-EN 52
- Zone Sensor Options 53
- CV: BAYSENS108 54
- CV: BAYSENS110 54
- BAYSENS074 55
- BAYSENS073 55
- Electrical Data 56
- Dimensions and Weights 59
- DETAIL A 71
- DETAIL B 71
- MOUNTING BASE 71
- SEE DETAIL A 71
- DETAIL A 75
- DETAIL B 75
- Service Clearances 78
- Mechanical Specifications 79
- 80 PKG-PRC003U-EN 80
- IntelliPak™ Control Options 81
- Comparative Enthalpy Control 82
- Airside Economizer Interface 82
- PKG-PRC003U-EN 83 83
- 84 PKG-PRC003U-EN 84
- PKG-PRC003U-EN 85 85
- 86 PKG-PRC003U-EN 86
- Protective Coating Option 87
- Low Ambient Damper Option 87
- Louvered Coil Guards Option 87
- Agency Listing 87
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