Table of Contents
Advertisement
Benchmark 2500DF-3000DF Installation, Operation & Maintenance Manual
CHAPTER 2 – INSTALLATION
2.6 PRESSURE RELIEF VALVE INSTALLATION
An ASME rated Pressure Relief Valve is supplied with each Benchmark Boiler. The pressure rating for the
relief valve must be specified on the sales order. Available pressure ratings range from 30 psi to 160 psi,
depending upon pressure vessel rated pressure. The relief valve is installed on the hot water outlet of the
boiler as shown in Figure 2-4. A suitable pipe joint compound should be used on the threaded
connections. Any excess should be wiped off to avoid getting any joint compound into the valve body.
The relief valve must be piped to within 12 inches of the floor to prevent injury in the event of a discharge.
are allowed in the discharge line. In multiple unit installations the discharge lines must not be manifolded
together. Each must be individually run to a suitable discharge location.
PRESSURE
RELIEF VALVE
4" BOILER HOT
WATER OUTLET
PARTIAL REAR VIEW
Figure 2-4: P&T Relief Valve Location
2.7 CONDENSATE DRAIN & PIPING
The Benchmark Boiler is designed to condense water vapor from the flue products. Therefore, the
installation must have provisions for suitable condensate drainage or collection.
The condensate drain port located on the exhaust manifold (Figure 2-5) must be connected to the
condensate trap (P/N 24060) which is packed separately within the unit's shipping container. The
condensate trap outlet connection features a tapped 3/4" NPT drain port.
OMM-0099_0A
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 19 of 234
GF-145
Ph.: 800-526-0288
PR1: 05/21/2014
Advertisement
Table of Contents
