Replacement Parts List

page 6

AIR ADJUSTMENT

Adjust the air adjustment knob on the side of the Air Boot to rough air setting (See Table 2). 1.

NOTE: For proper burner operation, burner should be set up by using a combustion analysis test set.

Start the burner and adjust the air control as needed to achieve the required CO2.

and smoke levels. Set

over ﬁre draft to appliance manufacturers' speciﬁcations (typically -.02" of water). Secure air control knob

with indicator bracket. 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, or check the

website at www.ﬁeldcontrols.com.

Next, adjust the VRV gate by screwing the adjustment weight in until the VRV gate is just closed.3.

Re-check the burner’s operation and adjust accordingly.4.

Lock the adjustment weight in position by tightening the hex nut on the VRV gate.5.

ROUGH AIR SETTING

GPH

Knob Setting

CAS-2B CAS-2C CAS-2W

.75 25º 15º 70º

1.00 60º 25º 90º

1.50 160 º 105º 135º

Table 2