Packaged Rooftop Ventilator
5
Open view showing optional condenser coil and fans.
Blower
Either one or two plenum-type fans. All units are
equipped with a plenum fan for Supply Air and a second
may be selected for Exhaust (Relief) Air.
Coils
Evaporator coil (optional)
Condenser coil (optional, packaged DX only)
Water coil (optional)
Reheat coil (optional)
Compressors
Each unit having packaged DX will have either one or
two refrigerant compressors. Optionally, one of the
compressors may be a digital scroll type compressor.
Dampers
Motorized outdoor air damper, motorized recirculating
damper. Optional return air damper. Optional gravity-
type exhaust damper.
Optional Barometric Relief Damper
Used during economizer mode of the unit when building
pressure increases, relief damper will open due to over
pressurization.
Electric Heater
An SCR controlled electric heater (not shown) is
available on the units. It requires a separate power
supply and has its own control panel. See unit-specific
wiring diagram.
Plenum-Type
Supply Air Blower
Low Sound Condenser Fans
(optional)
Indirect Gas-Fired Furnace
(optional)
Plenum-Type
Supply Air Blower
Packaged DX
Compressors
(optional)
Condenser Coils
(optional)
Outdoor Air
Damper
Coils
(optional)
Recirculating
Damper
Main Control
Center
Furnace Vest Plate
and
Furnace Control Center
(optional)
Outdoor Air Filters
Weatherhood Filters
(metal mesh)
Plenum-Type
Exhaust Air Blower
Filters -
Two-inch thick metal mesh filters in the outdoor
weatherhood intake, 2-inch thick pleated paper MERV 8
(standard) or MERV 13 filters in the air stream. Optional
4-inch thick filter bank with a 2-inch thick MERV 8 and
2-inch thick MERV 13 or a 4-inch thick MERV 14 pleated
paper supply filters.
Indirect Gas-Fired Furnace -
Furnace model PVG is
available on XRV-25 and XRV-45. Model XRV-70 uses
furnace model PVF 200-600 or model HMA 700-800.
Packaged DX System -
Any unit may be ordered with a
packaged DX system. Housing size XRV-25 will include
either one or two compressors; XRV-45 will include two
compressors; housing size XRV-70 will include four
compressors; a condenser coil(s) and evaporator coil(s)
and all required components. Units that have packaged
DX are charged with R410A refrigerant. Do not use tools
or parts designed for other refrigerants on these units.
Split DX
The unit may be ordered with a split DX system for
connection to a building cooling system.
Vestibule
Some units may be ordered with a factory-assembled
vestibule that is to be field-attached to the side of the
unit. See lifting instructions.
Subassemblies
