AERCO Esteem O&M Manual - Manual (Page 31)

25
System Piping - Special Application
• Note: Manifold mounted valve
actuators may be used in lieu
of zone valves.
1. Esteem 399 Low NOx boiler
2. CH circulator
3. Flow check valve
4 Isolation valve
5. Zone valve
6. Drain/purge valve
7. Pressure relief valve
8. Air separator
9. Automatic air vent
10. Diaphragm expansion tank
11. Automatic fill valve
12. System circulator
13. High temperature limit control
Figure 14: CH System Piping - Radiant/Low Temp. Heating
GF-125