AERCO BMK 3.0 LN Dual-Fuel Series Gas Fired Low NOx Boiler System - Manual (Page 11)

INSTALLATION
2-1
CHAPTER 2 INSTALLATION
2.1 INTRODUCTION
This Chapter provides the descriptions and
procedures necessary to unpack, inspect and
install the AERCO Benchmark 3.0 Dual-Fuel
Boiler. Brief descriptions are also provided for
each available mode of operation. Detailed
procedures for implementing these modes are
provided in Chapter 5.
2.2 RECEIVING THE UNIT
Each Benchmark 3.0 Dual-Fuel System is
shipped as a single crated unit. The shipping
weight is approximately 2,170 pounds. The unit
must be moved with the proper rigging
equipment for safety and to avoid equipment
damage. The unit should be completely
inspected for evidence of shipping damage and
shipment completeness at the time of receipt
from the carrier and before the bill of lading is
signed.
NOTE
AERCO is not responsible for lost or
damaged freight.
Each unit has a Tip-N-Tell indicator on the
outside of the crate. This indicates if the unit has
been turned on its side during shipment. If the
Tip-N-Tell indicator is tripped, do not sign for the
shipment. Note the information on the carrier’s
paperwork and request a freight claim and
inspection by a claims adjuster before
proceeding. Any other visual damage to the
packaging materials should also be made clear
to the delivering carrier.
2.3 UNPACKING
Carefully unpack the unit taking care not to
damage the unit enclosure when cutting away
packaging materials
A close inspection of the unit should be made to
ensure that there is no evidence of damage not
indicated by the Tip-N-Tell indicator. The freight
carrier should be notified immediately if any
damage is detected.
The following accessories come standard with
each unit and are either packed separately
within the unit’s packing container or are factory
installed on the boiler:
• Pressure/Temperature Gauge
• Spare Ignitor-Injector
• Spare Flame Detector
• ASME Pressure Relief Valve
• Condensate Drain Trap
• 2” Gas Supply Shutoff Valve
When ordered, optional accessories may be
packed separately, packed within the boiler
shipping container, or may be installed on the
boiler. Any standard or optional accessories
shipped loose should be identified and stored in
a safe place until ready for installation or use.
2.4 SITE PREPARATION
Ensure that the site selected for installation of
the Benchmark 3.0 Dual Fuel Boiler includes:
•
Access to AC Input Power corresponding to
the ordered power configuration. The
available power configurations are:
• 208 VAC, 3-Phase, 60 Hz @ 20 A
• 460 VAC, 3-Phase, 60 Hz @ 15 A
• Access to Natural Gas line at a static
pressure between 5.7” W.C.(min) and 2 psi
(max) for Standard (FM) option
• Access to Natural Gas line at a static
pressure between 6.5” W.C. (min.) and 2 psi
(max.) for IRI option
• Access to Propane Gas at a static pressure
between 3.5” W.C. (min.) and 2 psi (max.) for
both Standard (FM) and IRI options
2.4.1 Installation Clearances
The unit must be installed with the prescribed
clearances for service as shown in Figure 2-1.
The minimum clearance dimensions, required by
AERCO, are listed below. However, if Local
Building Codes require additional clearances,
these codes shall supersede AERCO’s
requirements. Minimum acceptable clearances
required are:
•
Sides: 24 inches
• Front : 24 inches
• Rear: 43 inches
• Top: 18 inches
All gas piping, water piping and electrical conduit
or cable must be arranged so that they do not
interfere with the removal of any panels, or
inhibit service or maintenance of the unit.