Supply And Return Piping; Bmk750 - 1000 Supply And Return Piping - Watts AERCO Benchmark Series Installation And Start-Up Manual

Benchmark Platinum-Edge [ii]: Installation Manual
SECTION 2 – INSTALLATION
LIFTING LUGS
NOTE:
The front top panel must be
removed to access the front
lifting lug.
Figure 2-3c: Lifting Lug Locations – BMK5000 & 6000

2.6 SUPPLY AND RETURN PIPING

When connecting the hot water outlet and cold-water inlet to building piping, first make sure the
mating surfaces are thoroughly clean. Gaskets of appropriate size for the pipe flange must be
provided in the field.
2.6.1 BMK750 – 1000 Supply and Return Piping
Benchmark 750 and 1000 Boiler utilizes 3" (7.62cm) 150# flanges for the water system supply
and return piping connections. The physical location of the supply and return piping connections
are on the rear of the unit as shown in Figure 2-4a.
LIFTING
BAR
(Must be
removed)
1/4" ANALYZER
NPT PORT
Figure 2-4a: BMK750/1000 Supply and Return Locations
OMM-136_E • GF-210 • 12/13/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
3" HOT WATER OUTLET
(SUPPLY)
1" (2.54cm) NATURAL GAS INLET
1" (2.54cm) PROPANE INLET
3" SECONDARY WATER INLET
WARMER WATER RETURN
AIR INLET
3" PRIMARY WATER INLET
COOLER WATER RETURN
DRAIN VALVE
CONDENSATE DRAIN
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