AERCO KC1000 Low NOx Boiler equipped with C-More version 3.04 - Manual (Page 16)

INSTALLATION
2.4.2 MANUAL GAS SHUTOFF VALVE
A 1-1/4” manual gas shut-off valve is furnished
with each unit. The valve should be positioned
as shown in Figure 2.7. The manual gas shut-of
valve must be installed upstream of the supply
regulator in a readily accessible location.
2.4.3 IRI GAS TRAIN KIT
The IRI gas train is an optional gas train
required in some areas by code or for insurance
purposes. The IRI gas train is factory pre-piped
and wired. (See Appendix F, Drawing No. SD-A-
660).
2.5 ELECTRICAL SUPPLY
The AERCO Gas Fired Equipment Electrical
Power Wiring Guide, (GF-1060), must be
consulted in addition to the following material
before wiring to the unit is started. AC power
connection to the unit are made at the Power
Box.This box is located on the front right side of
the unit as shown in Figure 2.8. Conduit should
be run from the knockouts in the side of the box
in such a manner that it does not interfere with
the removal of any sheet metal covers. A flexible
electrical connection may be utilized to allow the
covers to be easily removed.
POWER BOX
BLOWER
SSOV
ACTUATOR
FRAME
Figure 2.8
AC Power Box Location
NOTE:
All electrical conduit and hardware should
be installed so that it does not interfere with
the removal of any cover, inhibit service or
maintenance, or prevent access between
the unit and walls or another unit.
2.5.1 ELECTRICAL REQUIREMENTS
Electrical requirements for each unit are 120
VAC, Single Phase, 60 Hz, 20 Amps from a
dedicated electrical circuit. No other devices
should be on the same electrical circuit as the
KC1000 unit. A means for disconnecting AC
power from the unit (such as a service switch)
must be installed near the unit for normal opera-
tion and maintenance. All electrical connections
should be made in accordance with the National
Electrical Code and/or with any applicable local
codes.
The AC power wiring diagram is shown in Figure
2.9.
Figure 2.9
AC Power Wiring Diagram
2.6 MODE OF OPERATION and FIELD
CONTROL WIRING
The KC Boiler is available in several different
modes of operation. While each unit is factory
configured and wired for the mode specified on
the equipment order, some field wiring may be
required to complete the installation. This wiring
is typically routed to the Input/Output (I/O) Box
located on the left side of the unit beneath the
removable side panel (see Fig. 2.10). Field
wiring for each particular mode of operation is
described in the following paragraphs. For
additional information concerning modes of
operations, refer to Section 5.
2-6