Page 117 - 233423 - Exhaust Fans_Neat

Inlet Service Duct Option
Service duct kits allow a quick disconnect between the fan inlet and duct system.
1. Service duct kits come with (2) 7” long duct sections, (8) riser rings, and installation hardware.
2. Service duct flanges must be sealed with 3M Barrier 2000+.
3. Once sealed, the service duct is secured using bolt together riser rings.
4. The first 7” long duct section can be welded directly to existing duct systems.
5. If connecting to fan Manufacturer’s factory duct, the first 7” long duct section may or may not be used.
You may connect fan Manufacturer’s standard duct directly to service duct using V-bands.

Figure 18 - Inlet Service Duct Option
BIXX-DWXXFRISER
Assembly - Connection
Bolt DWXXRERI2PCS Rings To Fan Inlet.
BIXX-DWXXFRISER To Scroll Once Sealed.
Assembly. Whiz Nut.
3M Fire Barrier
2000 Plus
AX# A0003489.
DWXXSERVICEDUCT.
Whiz Bolt.
DWXX07LT
Fan Manufacturer's DWXX07LT Removable
Standard Factory Welded To Existing BI Duct, Service Duct.
Duct Diameter. Not Used When Connecting
To Fan Manufacturer's
Not Used When Connecting DWXXRERI2PCS.
To Fan Manufacturer's Duct Systems.
Duct Systems.
BIXX-DWXXFRISER
Assembly.
DWXXSERVICEDUCT.

Service Duct Used
To Disconnect The
Fan From The Duct
System.
7.00

Fan Duct Inlet Connection Whiz Bolt Whiz Nut
Size Diameter Assembly Duct LT Quantity Riser Rings Quantity (Inches) Quantity (Inches) Quantity

11 12” 12SERVICEDUCTKIT DW1207LT 2 A0028896/ 8 A0023684/ 16 A005690/ 16
DW12RERI2PCS 1/4”-20 x 1” 1/4”-20
13 14” 14SERVICEDUCTKIT DW1407LT 2 A0028897/ 8 A0023684/ 16 A005690/ 16
DW14RERI2PCS 1/4”-20 x 1” 1/4”-20
15 16” 16SERVICEDUCTKIT DW1607LT 2 A0028898/ 8 A0023684/ 16 A005690/ 16
DW16RERI2PCS 1/4”-20 x 1” 1/4”-20
18 20” 20SERVICEDUCTKIT DW2007LT 2 A0028900/ 8 A0023684/ 16 A005690/ 16
DW20RERI2PCS 1/4”-20 x 1” 1/4”-20
20 20” 20SERVICEDUCTKIT DW2007LT 2 A0028900/ 8 A0023684/ 16 A005690/ 16
DW20RERI2PCS 1/4”-20 x 1” 1/4”-20
24 24” 24SERVICEDUCTKIT DW2407LT 2 A0028903/ 8 A0023684/ 16 A005690/ 16
DW24RERI2PCS 1/4”-20 x 1” 1/4”-20
30 24” 24SERVICEDUCTKIT DW2407LT 2 A0028903/ 8 A0023684/ 16 A005690/ 16
DW24RERI2PCS 1/4”-20 x 1” 1/4”-20
36 30” 30SERVICEDUCTKIT DW3007LT 2 A0030878/ 8 A0024297/ 16 A005688/ 16
DW36RERI2PCS 3/8”-16 x 1” 3/8”-16

20