AMR Integrated Water Heaters (Supplement to GF-146)
CHAPTER 4: INSTALLATION - PIPING
Figure 4-1: Inlets, Outlets, Safety Relief Valves, and Discharge Piping
4.3 Low Water Cutoff (LWCO)
A low water cutoff (LWCO) (Figure 4-2) is factory supplied and must be installed on the outlet
piping of the boiler, and before any intervening valves, as shown in Figures 4-5 and 4-7. When
installing such a device, you must consult and abide by all local codes and regulations in force.
NOTE
Use Teflon tape or a suitable pipe joint compound for component
and piping connections.
4.4 Expansion Tank and Makeup Water
Install an expansion tank. Ensure the expansion tank is properly sized for the boiler volume and
the system volume, temperature and pressure. See figures 4-5 and 4-7 for suggested tank
location.
SEPARATE PIPING TO POINT
OF RELIEF FOR VALVE
DISCHARGE DRAINAGE
TEMPERATURE AND
PRESSURE GAUGE
TEMPERATURE AND
PRESSURE GAUGE
SAFETY RELIEF VALVE 2
(FACTORY SUPPLIED)
SAFETY RELIEF VALVE 2
DISCHARGE PIPING
(FIELD SUPPLIED)
CONDENSATE
DRAINAGE OUTLET
PIPE
RECIRCULATION PUMP
HOT WATER OUTLET
HOT WATER OUTLET
NUT, NIPPLE, & GASKET
COLD WATER INLET
NUT, NIPPLE, & GASKET
COLD WATER INLET
NATURAL GAS INLET
RECIRCULATION
LOOP PIPING
SAFETY RELIEF VALVE 1
(FACTORY SUPPLIED)
SAFETY RELIEF VALVE 1
DISCHARGE PIPING
(FIELD SUPPLIED)
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AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0106_0A
PRI - 07/22/15
Ph.: 800-526-0288
GF-146-IR