A.O. Smith DB/DW-720-1810 User Manual page 19

TABLE 8.
NO. SUGGESTED ITEMS FOR INSTALLATION
1. SHORT PIPE NIPPLE AND PAIR OF BOILER LOOP TEES IN
PIPING BETWEEN SYSTEM SUPPLY AND RETURN - ONE SET
PER EACH BOILER
2. BOILER PIPE LOOP (See Piping Sizing Data Table 3.)
3. BOILER CIRCULATING PUMP (See Piping Sizing Data Table 3.)
4. THERMOMETER
5. PRESSURE GAUGE
6. LOW WATER CUT-OFF (If Required By Local Code.)
7. SAFETY FLOW SWITCH
8. RELIEF VALVE (Furnished with Boiler)
9. BOILER INLET - OUTLET
10. SYSTEM SUPPLY TEMPERATURE THERMOMETER
11. DRAIN OR BLOW-DOWN VALVE
FIGURE 14
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