top of page

- Direct Fired.

- Natural gas.

- 20" Mixed Flow Direct Drive Fan.
- Supply Fan handles 2500 CFM @ 0.500" wc ESP.

- Fan runs at 1089 RPM.
- Heater supplies 227022 BTUs.

- 85F Temperature Rise.

- Fuel: Natural Gas.

- Supply Motor: 1.500 HP, 3 Phs, 208 V, 60 Hz, 4.4 FLA, ODP, Premium (E-Plus3) Eff.
- Down Discharge - Air Flow Right to Left.
- Sloped Filtered Intake for Size #2 Modular Heater.
- 26.813" Wide x 53.625" Long x 31.313" High.
- Includes 2" MV EZ Kleen Metal Mesh Filters. 
- 0-150F Discharge Temp Control.

- Field Wired On/Off Start Command.

- Heating Activation Based On Intake Set Point. 
- Gas Manifold for DF2 GM - BTU 0 - 825001 - 7 in. w.c. - 14 in. w.c.

- No Insurance Requirement (ANSI).

- BV250-88.
- Down Discharge Construction for Size 2 Direct Drive AHUs. 
- Gas Pressure Gauge, 0-35", 2.5" Diameter, 1/4" Thread Size. 
- Gas Pressure Gauge, -5 to +15 Inches Wc., 2.5" Diameter, 1/4" Thread Size.

- Butterfly Mod Valve Option for Mod Size 2 (1" Mod Valve).
- Ship Loose Gas Strainer. To be installed upstream of unit connection. 1" Connection. 
- Motorized Back Draft Damper 22.75" X 24" for Size 2 Standard & Modular Heater Units w/Extended Shaft, Standard Galvanized Construction, 3/4" Rear Flange, Low Leakage, LF120S Actuator Included. 
- Low Fire Start. Allows the burner circuit to energize when the modulation control is in a low fire position.
- Freezestat With 10' Sensor. Factory set at 35F and 10 minutes.
- VAV (Variable-Air-Volume) Wiring Package for Commercial Fans.
- Manual Speed Control Variable Frequency Drive Included. 
- ESV112N02YXB571 - Variable Frequency Drive - 1.5 HP Max., 200/240 V, Single or Three Phase Input, 6.0 A Max., NEMA 1 Enclosure, with 2RJ-45 FOR MODBUS. 
- VFD factory mounted and wired in unit control vestibule.

- Profile Plate Configuration for size 2 Direct Fired Unit for low cfm applications.

- Control panel enclosure heater, includes 100w, 120v heater. Recommended for winter design temperature less than 0F.

- Operates on PCB controls in IBT Single Modules or RTU. 
- GFCI 15 amp Convenience Outlet For Heater Enclosure. Power supply by others - Includes receptacle and J box.
- 2500 CFM Curb CRB31X79X16INS Insulated On Fan #1 Flat Curb. 
- Full Bottom Curb Corner. Base flange corners fully welded or staked by factory.

FloAire 2500CFM Direct Fired Make Up Air Unit, 208V/3Ph, with VFD and Roof Curb

SKU: F2-D.250-20D-2500CFM
$8,892.42Price
    bottom of page