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Bonding primary systems (cont.) Fig. 7-2. Place the thermostat end of the blanket against the joint with thermostat facing out. Wrap the rest of the blanket around the joint so that the overlap covers the thermostat. Fig. 7-3. When it is windy orbelow 50°F (10°C), close the pipe ends and insulate around the blanket. Overlap the blanket about 4 inches on each side and tie down the ends of the insulation. Using heating blankets Ameron heating blankets provide an efficient means for curing adhesive -bonded joints. Two sizes are needed for installing Dualoy 3000/L systems. Refer to Chem Cure Pak quantities and heating following table when ordering. blanket sizes The heating blanket reaches a maximum temperature of 250°F (120°C), which will cure Ameron PSX•20 adhesive in approximately 30 to 40 minutes. Detailed instructions are included with the blanket. Observe the following points: • Use one heating blanket per bond: sleeve couplings in 3 -inch sizes and larger will require two blankets. However, a single blanket is sufficient for curing both bonds in a 2 -inch sleeve coupling. • Tie the blanket in place with nonconducting ties. • Before connecting to a power source, inspect the blanket and cord for loose wire connections and bare wires. • Do not plug the cord into a power source when standing in water or on a wet surface. • Check that the heating blanket has the correct AC voltage rating for your locality. Do not use direct current. • Mark the starting and disconnect time on the pipe with a grease pencil so that you will have a record of cure for each joint. • Verify that the blanket actually heats up after being plugged in. Fiberglass insulation backed by q aluminum foil Connecting to non-Ameron fiberglass piping Connect Dualoy 3000/1- fiberglass piping and non-Ameron UL -listed fiberglass piping by means of threaded adapters. Do not adhesive bond Ameron piping to that of another manufacturer. Bond the appropriate adapter from each manufacturer to the manufac- turer's pipe using that manufacturer's adhesive. Complete the threaded connection using thread sealant, not pipe adhesive. By following this procedure you can use Dualoy 3000/1- piping to extend an existing line that employs the pipe from another manufacturer without voiding the UL listing of either system. 11 Nominal Chem Heating Pipe Size Cure Pak Blanket (in (mm) Units per Carton Size 2 50 30 1 3 80 30 1 4 100 20 1 6 150 20 II • Use one heating blanket per bond: sleeve couplings in 3 -inch sizes and larger will require two blankets. However, a single blanket is sufficient for curing both bonds in a 2 -inch sleeve coupling. • Tie the blanket in place with nonconducting ties. • Before connecting to a power source, inspect the blanket and cord for loose wire connections and bare wires. • Do not plug the cord into a power source when standing in water or on a wet surface. • Check that the heating blanket has the correct AC voltage rating for your locality. Do not use direct current. • Mark the starting and disconnect time on the pipe with a grease pencil so that you will have a record of cure for each joint. • Verify that the blanket actually heats up after being plugged in. Fiberglass insulation backed by q aluminum foil Connecting to non-Ameron fiberglass piping Connect Dualoy 3000/1- fiberglass piping and non-Ameron UL -listed fiberglass piping by means of threaded adapters. Do not adhesive bond Ameron piping to that of another manufacturer. Bond the appropriate adapter from each manufacturer to the manufac- turer's pipe using that manufacturer's adhesive. Complete the threaded connection using thread sealant, not pipe adhesive. By following this procedure you can use Dualoy 3000/1- piping to extend an existing line that employs the pipe from another manufacturer without voiding the UL listing of either system. 11