Beschreibung
Model YDMA makeup air unit provides superior control of high volumes of outside air in a package DX system design. The model’s feature set allows it to properly condition 100% outside air. The unit’s blower system incorporates a superior energy efficient blower design with variable speed control to balance and control the airflow as needed. The DX system maximizes efficiency with the use of modulating digital scroll technology, ECM condenser fans and optimized coil designs. The DX system exceeds ASHRAE standard 90.1 requirements. Model YDMA can utilizes the Tcore3 condensing heat technology. Tcore3 condensing gas heating system maintains greater than 90% efficiency throughout the modulated control range. The system features state of the art stand alone control system that further maximizes energy use.
Wärmeleistung ( MBH )
Kälteleistung ( MBH )
Luftvolumenstrom ( CFM )
Wirkungsgrad bei Vollast ( Bruto )
Kälteleistung ( MBH )
Luftvolumenstrom ( CFM )
Wirkungsgrad bei Vollast ( Bruto )
Supply & Exhaust Fan
- 650 – 7,000 SCFM Direct drive backward incline plenum fan
- High external static pressure capability
- Easy CFM verification for all fans Factory installed ABB variable frequency drive
- Duct static pressure control
- Summer/winter constant volume
- External 0-10V signal
- Automatic low and high speed control
Mechanical Cooling
- R410A refrigerant (environmentally friendly)
- High efficiency digital scroll technology 10-100% capacity control
- Fully interlaced coils
- Compressor anti-cycle programming
- Mechanical gauge connections High & low pressure switches
- Crankcase heaters
- Anti-rust, dual sloped condensate drain pan
- Froststat, all circuits
Gas Heating
- Natural gas or propane furnace
- Patented Tcore3 combustion control (patent #8,113,269)
- High capacity heat for colder climates
- 92% or 80% thermal efficiency 2-4 stage control
- 5:1 or 10:1 gas modulation
- 409 stainless steel heat exchanger
- Failure/alarm diagnostics
Electric Heat
- High capacity heat for colder climates
- 3-4 stage control
- Failure/alarm diagnostics
Construction
- Double wall foam panel construction – R12
- Hinged access doors with slam latches
- G90 galvanized steel substrate, 60 gloss finish
- Convenient single door access panel for all controls, heating, and cooling section
- 4 point bottom lifting
- 4” pleated MERV 8 filters
- Vertical discharge, roof or pad mounting
- Full perimeter curbs
Controls
- Single point power connections
- Isolated high voltage compartment
- ABB patented high voltage management system
- DDC unit controller output LED status
- Unit mounted display
- Unit alarm logging and retrieval
- Unit sensor and command values trending for retrieval
- Easy unit functional test mode
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