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11
7. Screw an installer-supplied 1¼” pipe or
nipple into the water return tapping “R”.
8. Screw the supplied drain valve into tapping
“D”.
6. CONNECT BOILER WATER PIPING (continued)
9. See Figure 6b for suggested near boiler
piping of IQ Options.
6-b
Item Description Burnham Part Number
1 1¼ x 1¼ x ½ Tee 806601021
2 Immersion Well, ½ NPT 80160456
3 1¼ x 6 Nipple 806600029
4 1¼ Tee 806601030
5 1¼ x ¾ Bushing 806600504
6 LWCO Sensor, ¾ NPT 102305-01
7 1¼ x 3 Nipple 806600005
8 1¼ Elbow 806601528