Trane OABE OADE OAKE OANE (Water Source Heat Pump) Katalog
OAU-PRC003A-EN
61
Mechanical Specifications
Supply and Exhaust Fan and Motors (OAD, OAK, and OAN)
Fan motor shall be direct drive type with factory installed Variable Frequency Drive. All motors shall
be thermally protected. All indoor fan motors meet the U.S. Energy Policy Act of 2005 (EPACT).
be thermally protected. All indoor fan motors meet the U.S. Energy Policy Act of 2005 (EPACT).
Refer to
Supply and Exhaust Fan and Motors (OAB)
Fan shall be a high efficiency backward curved impeller. The motor shall be an electronic commuted
motor (ECM) with integrated power electronics.
motor (ECM) with integrated power electronics.
Dampers— Low Leak
The outside air damper has a unit-controlled actuator with parallel-blades. The blade construction
is a 14-gage galvanized steel, roll-formed airfoil-type.
is a 14-gage galvanized steel, roll-formed airfoil-type.
Electrical and Controls
Controls
Unit is completely factory-wired with necessary controls and contactor pressure lugs for power
wiring. Units will provide an external location for mounting fused disconnect device. Micro-
processor controls are provided for all 24-volt control functions. The resident control algorithms
will make all heating, cooling and/or ventilating decisions in response to electronic signals from
sensors measuring outdoor temperature and humidity. The control algorithm maintains accurate
temperature control, minimizes drift from set point, and provides better building comfort. A
centralized micro-processor (RTRM) will provide anti-short cycle timing for a higher level of
machine protection. Terminals are provided for a field installed dry contact or switch closure to put
the unit in the Occupied or Unoccupied modes.
wiring. Units will provide an external location for mounting fused disconnect device. Micro-
processor controls are provided for all 24-volt control functions. The resident control algorithms
will make all heating, cooling and/or ventilating decisions in response to electronic signals from
sensors measuring outdoor temperature and humidity. The control algorithm maintains accurate
temperature control, minimizes drift from set point, and provides better building comfort. A
centralized micro-processor (RTRM) will provide anti-short cycle timing for a higher level of
machine protection. Terminals are provided for a field installed dry contact or switch closure to put
the unit in the Occupied or Unoccupied modes.
Figure 47.
Indoor fan and motor