Benchmark 750-6000 with Edge [i]: Install-Startup Manual
SECTION 2
– INSTALLATION
OMM-
144_B • GF-217 • 5/25/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
24
of
62
2.6.2 BMK1500
–
5000N Supply and Return Piping
Benchmark 1500
– 3000 units have the following inlets and outlets:
•
4” (10.2 cm) 150# flange water INLET (supply) and hot water OUTLET (return) piping.
•
One of the following gas inlet pipes:
o
2” (5.08 cm) Natural Gas inlet pipe.
o
1” (2.54 cm) Propane inlet pipe (BMK 1500-2000).
o
2” (5.08 cm) Propane inlet pipe (BMK 2500-3000).
•
8” (20.3 cm) Air Inlet adapter.
Benchmark 4000 and 5000N units have:
•
6” (15.2 CM) 150# flange water INLET (supply) and hot water OUTLET (return) piping.
•
One of the following gas inlet pipes:
o
3” (7.62 cm) Natural Gas inlet pipe.
o
2
” (5.08 cm) Propane inlet pipe
•
10” (25.4 cm) Air Inlet adapter.
Figure 2-4b: BMK1500
– 5000N Supply and Return Locations
CONDENSATE DRAIN
EXHAUST MANIFOLD
BMK1500/2000
BMK2500
– 5000N
AIR INLET
HOT WATER
OUTLET
(SUPPLY)
WATER INLET
(RETURN)
NATURAL GAS OR
PROPANE INLET
