Williams 3003611 Installation cont, Optional Blower Installation, and Operating Instructions

Installation (cont.)

INSTALL VENT CAP

Outside, place a single strip of mastic (provided) around the back flange of the vent cap ("G" Fig. 5, page 8). In- stall the vent cap by inserting it into the air inlet tube and over the vent tube.

IMPORTANT

POSITION OF VENT CAP

EXTERIOR WALL

The top of the vent cap is embossed "TOP". Install it in the correct position to prevent water from entering the wall. Level the vent cap and attach it to the outside wall with four (4) #8 roundhead (long) screws (Fig. 6).

If the wall surface is not flat (shiplapped siding, etc.) or less than 5 inches thickness use Thin Wall Collar Kit (9307) or, build up a flat surface with wood strips. Do not tilt or bend cap to fit uneven surfaces. The vent cap flange must be tight against the wall to prevent rain or wind penetra- tion. Use standard caulking compound if required (not provided).

For brick, masonry or plaster walls, it may be necessary

to use lag screws or expanding anchor bolts which are not furnished with the furnace.

Optional Blower Installation

1.Remove knock-out plates "A" and "B" from right side of furnace inner casing.

2.Remove junction box cover, place blower and junction box assembly in position shown and fasten to inner cas- ing through pre-punched holes with screws "C" and "D" provided.

3.Remove knock-out"G" from bottom of junction box and install 115V line in accordance with local electrical

code, connecting as shown on the wiring diagram below.

4.Replace junction box cover.

5.After blower and junction box are installed, rotate bushing "H" if needed to prevent motor wire binding against blower case.

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and Operating Instructions

The automatic fan switch "E" turns on the blower after

the heater has been operating a few minutes and turns off the blower after the heater is shut off.

NOTE

Blower will not operate unless fan switch is pulled to "On" position, either "High" or "Low." To check "On" position, turn automatic fan switch "E" to 70, then pull chain on switch to obtain High, Low or Off position. Set the fan switch dial at 110 and readjust higher or lower as necessary to obtain blower operation within 4 to 5 minutes after the main burner is in operation.

The unit must be electrically grounded in accordance with ANSI/NFPA 70 current edition of the "National Electrical

Code." In Canada: FollowC22.1 Canadian Electrical Code.

IMPORTANT: 011 yearly with SAE 20 high tamp o11.

BLOWER ACCESSORY KIT 2302

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