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Product Details

The Reznor’s Model REDB Cooling/Dehumidifying Makeup Air Systems with Electric Heat
Reznor® packaged cooling and cooling/reheat pumpTM makeup air systems are available in the third generation of the Modular Air Processing System (MAPS®III).

Model REDB packaged direct expansion rooftops are designed to cool, dehumidify, and heat high amounts of outside air year round for makeup air and ventilation applications. These rooftop systems include the same approaches to outside air treatment found in field engineered or split systems. All MAPSIII products feature the Reznor IQ digital controller to fully integrate all operation and external sensing into a stand-alone package or through native BacNet, into a building management system.

Model REDB also offers the additional feature of a dedicated Re-Heat Pump™ maintains dehumidification even when the demand for cooling is minimal. And, more importantly, it complies with ASHRAE Standard 90.1, Paragraph 3.3.

Unit Features:
Electric Heat Section:
● 2 – 4 staged control
● Optional SCR control
● Temperature Rise 20°-90°F
● Sub-fused heating element sizes of 120 – 180 kW
● Automatic limit controls

Supply Fan:
● 5,000 – 13,000 CFM
● Forward Curve Blowers
● Belt Driven, Adjustable Sheave System
● Vertical Discharge (Horizontal Curb Option)
● Optional Unit or Field Mounted VFD
» Duct Static Pressure Control
» CO₂ Control
» Building Static Pressure Control
● Vibration Isolated Fan and Motor System
● Fan and Motor Lube Lines for Servicing
● Power Exhaust

Mechanical Cooling:
● R410A Refrigerant (Environmentally Friendly)
● High Outside Air Applications
● 3-8 Stages
● Scroll Compressor w/ internal motor overload
● Compressor Anti-Cycle Programming
● Mechanical Gauge Connection
● Fully Interlaced Coils

Dedicated Reheat Pump:
● Independent Reheat System
» Verifiable & Predictable Performance
» Low ambient operation (58°F)
» Lower energy cost
● Optional Modulating control for tighter performance
● R410A Refrigerant

● 100% Outside Air Option
● 100% Outside & Return Air Option
» Economizer control
» CO₂ Control
» Building Static Pressure Control
» Manual Positioning External 0-10V Signal
● Optional Outside Air Hood with Washable 1” Filter

● 208/3, 230/3, 460/3, 575/3
● Field Selectable Unit Configuration and Unit Mounted Display
● Optional Local and Remote User Display
● Easy System Integration
» BacNet or Lon
● Optional Phase Loss, Smoke Detector, Filter Status
● Isolated High voltage Compartment
● Controller Output LED Status
● Test Mode
● Optional Weatherproof Convenience Power Outlet

● Double Wall Construction Standard – R9 or higher value
● Hinged Access Doors with Handles
● Easy Access Compressor Section
● Unit or Field Mounted Disconnects
● 2” or 4” Permanent or Pleated Filters (MERV8 or MERV13 available)
● Hail Guard
● Slide Out and Sloped Stainless Steel Condensate Drain Pan
● Insulated, 16 Gauge, Downturn or Horizontal air Flow, Full Perimeter Curb
● G90 Galvanized Steel Substrate, 60 Gloss Finish
● Hold Door Open Service Hinges

● Standard One (1) Year Part Warranty
● Optional Five (5) Year Compressor Warranty