User manual FIELD CONTROLS 46001000

[. . . ] The basic draft adjustments are similar, but where variations apply, the following paragraphs will explain the procedure. Proper operation of the regulator depends upon proper installation and adjustment. Use a CO2 indicator, stack thermometer and draft gauge to adjust oil or solid fuel burners. [. . . ] 2) Assemble the "carriage bolt" through the "weight support bracket" attached to vane. Thread tapered "counter balance weight" on "carriage bolt" (tapered portion of weight must point toward bottom of draft control). For less draft, slide "counter balance weight assembly" toward "Low" position marked on the bracket; for more draft, slide "counter balance weight assembly" toward "Hi" position. When adjustment is made for desired draft, tighten weight securely to "carriage bolt". VERTICAL INSTALLATION: The 8" and 9" sizes, when mounted in vertical installations ONLY, require a small screw and nut (supplied) assembled in the hole at the bottom vane. The 6" and 7" regulators do not require this additional hardware in a vertical installation. Directions for Assembly/Installation of Collar READ CAREFULLY - DON'T GUESS If draft regulator is purchased without a collar or a tee joint, the depth "B" of the collar (Fig. 10) or the stub of the tee joint used must be of adequate length to avoid the damper plate entering the flue pipe - preventing flow interference. See Fig. 1) Supplied W/3"-5" B34 - Hook tongues "A" together to form a round collar. - Pull the assembled collar outward until the tongues are seated in the slots and recess. - With the tongues recessed, flatten tongues with a pair of pliers. Bend the tip of each tongue into the open slot, thus entirely closing the slot opening. - Proceed with instructions starting at paragraph 2 (a) below under "TWO-PIECE EARED COLLAR". ONE-PIECE ROLLED COLLAR - (Fig. 2) Supplied W/6" & 7" B34 & DR - Bend the lugs "A"" outward at 90o angle. - Simply align the holes "B" toward the back of the collar and bolt together. - Insert bolt through lugs "A", place a nut on it, but do not tighten until the damper section is in place. - Proceed with instructions starting at paragraph 2 (a) below under"TWO-PIECE EARED COLLAR". TWO-PIECE ROLLED COLLAR - (Fig. 3) Supplied W/8" & 9" B34 & DR - Bend the lugs "A" outward at 90o angle. Simply align the holes"B"in the two collar halves and bolt together with the hardware supplied. [. . . ] (b) After fastening Collar to pipe, mark around outside of Collar, Fig. (a) Take the Collar off and inscribe a circle inside the one just marked and about 1/2" apart as shown in Fig. (a) Snip from edge of hold to outside circle in a series of slits approximately 1/2"apart as shown in "G", Fig. [. . . ]