Powered Aire TDG2-72 User Manual

POWERED AIRE INC.

www.poweredaire.com

109 Mortensen Road Phone: [phone]
Greenville, PA 16125 Fax: [phone]

SUGGESTED AIRE CURTAIN SPECIFICATIONS

MODEL TDG DIRECT GAS FIRED

(CSI formatted specifications available at

All aire curtains furnished are complete factory assembled units as manufactured by Powered
Aire Inc. Greenville, PA. Each unit consists of casing, motors, centrifugal fans, and discharge
nozzle. Aire curtains will be equipped with access panels for motor and fan assembly. Individual
motor and fan assembly can be removed without lowering the unit or lowering the bottom half of
the unit. The aire curtain unit provides a specific CFM and a uniform velocity across the entire
length of the discharge area through the use of a plenum.

All weight bearing structural support will be made of formed 14-gauge stainless steel and
galvanized steel. Casing will be equipped with stainless steel access panels for inspection,
cleaning and removal of motor blower assembly. Internal components shall be welded and bolted
construction.

Motors at 3/4 H.P. 1630 rpm each shall be heavy duty type equipped with permanently lubricated,
shielded ball bearings of equal size at each end and double extended shafts requiring no outboard
bearings. Primary motor voltage shall be 115/208/230 volts 50/60 Hz single phase.

Galvanized fans shall be forward curved centrifugal type, double inlet design, with zinc plated
hubs. Tangential type blowers and coupling connection shall not be permitted.

Discharge nozzle shall be high efficiency discharge plenum, designed so that the air leaves on a 6
degree plane. Aire curtain creates a positive air seal with directional airfoil vane. The vane shall
facilitate deflection of air stream +

Unit(s) shall be provided with a factory mounted direct gas heater. Heater will be equipped with
a temperature sensor that controls the heater output by way of modulating gas valves. An air flow
switch along with a motor contactor will ensure that the burner will not fire without the fans
spinning. In the case of a flame failure, the flame safety relay energizes the alarm lockout relay
shutting down the entire system. The system will only restart if the flame safety relay is manually
reset. Unit(s) can be equipped with optional proof of closure on the main and auxiliary gas
valves, as well as optional high and low gas pressure switches.

Unit must be ducted to the outside to burn 100% fresh air.

Standard control panel shall be NEMA 12 enclosure with overload relays and contactors.

Direct gas fired panels will be mounted to the unit and will contain a 24 volt control transformer,
flame safety relay, temperature sensors, air flow sensors, and modulating gas valve controls.

Units shall have an 18 month warranty on all parts.

20 degrees.

Direct Gas Heat

Controls

October, 2013

www.poweredaire.com)

Control Options for Model TDG

Direct Gas Heated Options

* Recommended

*Door Switch/Magnetic -- A non-mechanical door switch that turns the air curtain on when the door is

opened.

* Hand/Off/Auto Selector Switch (Panel Mounted) -- Switches between the unit running constantly in
the hand position, off, and auto, which only runs when the door switch is activated (Use only if ducting the
intake to the outside).

*Heat On/Off Selector Switch (Panel Mounted) -- Turns the heat on and off while the fans are running,
or when used in conjunction with a thermostat can disable the heat.

*Thermostat (Panel Mounted) -- Turns the gas heat in the unit on and off while the fans are running
based on the room temperature.

Other Options

Cruise Control Programmable Switch -- Digital logic controller with an LCD display that takes the place

of several individual control components including a Built-in Time Delay Relay, On/Off/Auto Switch, Heat
On/Off Switch, High/Low Switch.

Disconnect-Fused -- A switch that will disconnect all power from the unit so that the unit can be serviced
or inspected and includes fuses for circuit protection.

Disconnect-Non Fused -- A switch that will disconnect all power from the unit so that the unit can be
serviced or inspected.

Door Switch/Roller-Plunger -- A mechanical door switch that turns the air curtain on when the door is
opened.

Motion Detector -- Turns the air curtain on when the sensors detect motion so that the air curtain turns on
before the door is opened.

On/Off Selector Switch (Panel Mounted) -- Switches the air curtain on and off.

Programmable Digital Thermostat -- A thermostat that is programmable with a digital display (7-day,

1/2 hour increments, specify up to 4 time periods per day)

Built-in Time Delay Relay -- Provides a delay for shutting off the air curtain after the door is shut. This is
useful for doors that see a lot of foot traffic, so the unit is not constantly turning on and off during the day.
To be used in conjunction with a door switch.