Field Controls 46330800 Manual

Combustion air system

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COMBUSTION AIR SYSTEM

FOR USE WITH OIL BURNER MODELS QB-180 & QB-300

4" VRV

4" IAH HOOD

The Air Boot™ model CAS-2WM is for use only on the designated burner(s) as

described in these instructions only when the specific burner includes this Air Boot™

when shipped from the burner manufacturer or where the burner instructions

specifically reference the model CAS-2WM Air Boot™ as an optional air intake

system.

TEMS INCLUDED IN KIT

1 - Air Boot™

1 - 4" VRV (Vacuum Relief Valve)

1 - 4" IAH Hood

1 - Set of Gaskets

1 - Burner Coupling Set

2 - Mounting Bolts

Model: CAS-2WM

WEIL-MCLAIN OUTSIDE AIR KIT

NSTALLER SUPPLIED ITEMS

Air Duct Pipe and Elbows as needed

-use 4" Dryer Venter, Aluminum or

Galvanized Steel

¼" NPT 90° street ell for oil line if needed

Exterior rated caulk, silicone sealant or

equivalent

AIR BOOT™

Page 1 COMBUSTION AIR SYSTEM Model: CAS-2WM WEIL-MCLAIN OUTSIDE AIR KIT FOR USE WITH OIL BURNER MODELS QB-180 & QB-300 4” VRV AIR BOOT™ 4” IAH HOOD The Air Boot™ model CAS-2WM is for use only on the designated burner(s) as described in these instructions only when the specific burner includes this Air Boot™ when shipped from the burner manufacturer or where the burner instructions specifically reference the model CAS-2WM Air Boot™...
Page 2 THE PURPOSE OF THE VACUUM RELIEF VALVE (VRV) Figure 1 The vacuum relief valve provides combustion air to the burner Rotate Oil Solenoid valve and realign 90° fitting as if the outside air supply is interrupted for any reason. Typical shown below.
Page 3 9. Mount the VRV tee assembly or 90° elbow onto the Air Boot™ intake. Fasten using three (3) sheet metal screws on all joints (See Figure 5). 10. Assemble the VRV balance weight onto the gate. Screw the weight all the way in.
Page 4 If draft levels are not obtainable or controllable, use standard industry methods to control the draft or call the Field Controls Tech Line at 1-800-742-8368 for more information. 4. Adjust the counterweight on the vacuum relief valve so the gate remains closed during the burner setup and testing.

Cas-2wm