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Manafacture: Weil-McLain File size: 1.17 mb File name: Language of manual:

Inhibited propylene glycol is recommended. Do not use automotive, ethylene glycol or undiluted antifreeze. Severe personal injury, death or substantial property damage can result. 50% solution provides protection to about — 30°F. Local codes may require back-flow preventer or actual disconnect from city water supply. Determine quantity according to system water content. Boiler water content is listed on back cover. Remember to add in expansion tank water content. Follow antifreeze manufacturer’s instructions. FILLING SYSTEM 1. Close manual air vents, drain cock, and automatic air vent, if used. 2. Fill to correct system pressure. Correct pressure will vary with each application. Residential systems are often designed for 12 pounds of cold fill pressure. 3. Open automatic air vent one turn, if used. 4. Open manual water feed valve. 5. a) Starting on lowest floor, open air vents one at a time until water squirts out. Close vent, b) Repeat with remaining vents. 6. Close manual water feed valve when correct boiler pressure is reached. INSPECT BASE INSULATION Check to make sure insulation is secure against all four sides of the base. If insulation is damaged or displaced, call service technician immediately. DO NOT operate boiler. Ceramic fiber material used in boiler base insulation can cause temporary skin, eye, and upper respiratory irritation. Use NIOSH or MSHA approved protection when installing or removing this material. CAUTION WARNING WARNING DANGER TO PLACE IN OPERATION 1. Be sure boiler has been correctly filled with water. 2. Follow correct lighting/operating instructions on boiler. For CG propane gas boilers only: I Your propane supplier mixes ai odorant with the propane to make it presence detectable. In som instances, the odorant can fade, ani the gas may no longer have an odoi Propane gas can accumulate at floo level. Smell near the floor for the ga odorant or any unusual odor. If yo suspect a leak, do not attempt t< light the pilot. • Use caution when attempting to ligh a propane pilot. This should be don' by a qualified service technician particularly if pilot outages ar> common. • Periodically check the odorant levc of your gas. • Inspect boiler and system at leas yearly to make sure all gas piping i leak-tight. • Consult your propane supplie regarding installation of a gas lea detector. There are some product on the market intended for this pui pose. Your supplier may be able t suggest an appropriate device. 3. If boiler starts, go to Step 5. If boiler fails to start, go to Step 4. 4. If boiler fails to start, check for following conditions: a) Loose connection or blown fuse? b) Limit setting below boiler water temperature? c) Thermostat set below room temperature? d) Gas not turned on at meter and boiler? e) Incoming natural gas pressure less than 5" W.C. c propane less than 11" W.C.? f) Access panel not secured in place? g) If above fails to eliminate the trouble, refer to Contr< Supplement. 5. Make sure boiler goes through several normal operatin cycles. 6. Turn thermostat or operating control to desired setting. WARNING Check pilot burner flame: 1. Proper pilot flame . a) Blue flame. b) Inner cone engulfing pilot flame sensor. c) Pilot flame sensor glows cherry red. 2. Improper pilot flame a) Overfired - flame is large and lifting or blowing past pilot flame sensor. b) Underfired - flame small; pilot flame sensor not engulfed by inner cone. c) Lack of primary air - flame tip yellow. d) Pilot flame sensor not heated properly. INSPECT VENTING SYSTEM 1. Check venting system at least once a month during heating season. With boiler firing, hold candle or match below lower edge of draft hood “skirt”. If flame does not blow out, but bums undisturbed, vent system is functioning properly. If flame blows out or flickers drastically, vent system must be checked for obstructions or other causes of improper venting. 2. Inspect all parts of venting systems for deterioration from corrosion, physical damage, sagging, etc. Correct all conditions found. 3. Verify damper is open when burner ignites. For additional information, see Control Supplement. TYPICAL PILOT BURNER FLAME FIGURE 11 CHECK BURNER FLAMES 1. Proper burner flame, see Figure 12. Yellow-orange streaks may appear - caused by dust. 2. Improper flame: a) Overfired - Flames large. b) Underfired - Flames small. c) Lack of primary air - Yellow tipping on flames; sooting will occur. TYPICAL MAIN BURNER FLAME FIGURE 12 Section VII: Check-out Procedure Check-off steps as completed. □ 1. Boiler and heat distribution units filled with water? □ 2. Automatic air vent, if used, open one turn? □ 3. Air purged from system? □ 4. Air purged from gas piping? Piping checked for leaks? □ 5. Are proper orifices installed? Check page 5 for proper size. Proper orifices must be used. Failure to do so will cause severe injury, death or substantial property damage. □ 6. Follow operating/lighti...

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