Ac Electrical Power Wiring; Electrical Power Requirements; Power Box Location - Watts Aerco Benchmark OMM-0124 Installation And Start-Up Manual

Natural gas, propane gas and dual fuel fired modulating & condensing boilers
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Benchmark 5000-6000 Boiler Installation & Startup Manual
SECTION 2: INSTALLATION
DRIP LEG
Figure 2-10b: Manual Gas Shut-Off Valve Location – Dual Fuel Shown

2.10 AC ELECTRICAL POWER WIRING

For electrical power requirements and wiring diagrams for Benchmark Platinum 5000 and –
6000 units, both domestic and international, see the AERCO's Benchmark Electrical Power
Guide, TAG-0048 (GF-2060). This guide must be consulted prior to connecting any AC power
wiring to the unit.

2.10.1 Electrical Power Requirements

Each unit must be connected to a dedicated electrical circuit. NO OTHER DEVICES SHOULD
BE ON THE SAME ELECTRICAL CIRCUIT AS THE BOILER.
A double-pole switch must be installed on the electrical supply line in an easily accessible
location to quickly and safely disconnect electrical service. DO NOT attach the switch to sheet
metal enclosures of the unit.
After placing the unit in service, the ignition safety shutoff device must be tested. If an external
electrical power source is used, the installed boiler must be electrically bonded to ground in
accordance with the requirements of the authority having jurisdiction. In the absence of such
requirements, the installation shall conform to National Electrical Code (NEC), ANSI/NFPA 70
and/or the Canadian Electrical Code (CEC) Part I, CSA C22.1 Electrical Code.

2.10.2 Power Box Location

External AC power connections are made to the unit inside the Power Box on the front of the
unit. Remove the front panel to access the Power Box, which is mounted in the upper right
corner of the unit as shown in Figure 2-11. Loosen the two upper screws of the Power Box
cover and remove cover to access the internal connections shown in Figure 2-12.
OMM-0123_E • GF-207 • 12/17/2019
PROPANE PRESSURE REGULATOR
Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST
MINIMUM 10 PIPE
DIAMETERS IN LENGTH
NATURAL GAS
PRESSURE REGULATOR
2" MANUAL GAS
SHUT-OFF VALVE
NATURAL GAS
SUPPLY
DRIP LEG
Page 24 of 95

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