5 supply and return piping, Benchmark 2.0ln dual-fuel low nox boiler, Gf-127 – AERCO BMK 2.0 LN Dual Fuel Serial G-11-2402 and UP User Manual
Page 13
 
 
 
 
CHAPTER 2: INSTALLATION
PR2: 04/22/13 Page 13 of 160
 
 
Benchmark 2.0LN Dual-Fuel Low NOx Boiler
Operation and Maintenance Manual
OMM-0052_0E
GF-127
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288
locations. Two lifting tabs are provided at the top of the heat exchanger. Figure 2-2 shows the 
location of the tab on the top-left side. The second tab is located on the top-right side of the heat 
exchanger. USE THESE TWO TABS TO LIFT AND MOVE THE UNIT. Remove the top panel 
from the unit to provide access to the lifting tabs. Remove the four (4) lag screws securing the 
unit to the shipping skid. Lift the unit off the shipping skid and position it on the 4 inch to 6 inch 
housekeeping concrete pad (required) in the desired location. 
 
WARNING
WHEN LIFTING OR MOVING THE BOILER:
• DO NOT MANIPULATE THE BOILER USING THE GAS TRAIN OR
BLOWER
• WHEN USING THE LIFTING TABS, ENSURE THERE IS NO LOAD
PLACED ON THE GAS TRAIN OR BLOWER
LIFTING
TABS (2)
Figure 2-2: Partial Top View Showing Lifting Tab Location
In multiple unit installations, it is important to plan the position of each unit in advance. Sufficient 
space for piping connections and future service/maintenance requirements must also be taken 
into consideration. All piping must include ample provisions for expansion. 
If installing a Combination Control Panel (CCP) system, it is important to identify the 
Combination Mode Boilers in advance and place them in the proper physical location. Refer to 
Chapter 5 for information on Combination Mode Boilers. 
2.5 SUPPLY AND RETURN PIPING
The Benchmark 2.0LN Boiler utilizes 4” 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 2-3. Refer to Appendix F, Drawing AP-A-798 for additional dimensional data.