24
Electrical Wiring
The boiler, when installed, must be wired and electrically
bonded to ground in accordance with the requirements of
the authority having jurisdiction or, in the absence of such
requirements, with the National Electrical Code, ANSI/NFPA
70.
Install a fused disconnect switch between boiler and
electrical panel in a convenient location. The wiring from high
temperature limit control should be secured to the boiler
jacket or gas piping to prevent an accidental disconnect from
controls.
All wiring to gas valves must be taped securely to the gas
supply lines or run in an appropriate conduit.
Thermostat Installation
The thermostat location has an important effect on the
operation of the boiler system. Be sure to follow the
instructions included with the thermostat. Locate the
thermostat about 5 feet above the fl oor on an inside wall. It
should be sensing average temperature.
Keep thermostat(s) at desired room temperature. If windows
are to be opened or heat is not needed, set thermostat(s)
pointer to a lower setting.
Adjust Thermostat Heat Anticipator
Suggested heat anticipator setting is .90 amps (set
accordingly). Then follow instructions packaged with
thermostat for fi nal adjustment, checking thermostat
operation. When set above temperature indicated on
thermometer, boiler burners should ignite. Make certain
thermostat(s) turns off boiler when room temperature
reaches selected setting and starts boiler operating when
room temperature falls few degrees.
Finally, set thermostat for desired temperature. Special
conditions in building and location of thermostat will
govern this setting.
STAGE FIRING MULTIPLE BASE BOILERS
Stage Firing Multiple Base Boilers
Multiple base hot water boilers are ideal for stage fi ring.
Many controls are available for sequencing or stage
fi ring multiple base hot water boilers. We offer Argo
AMB Outdoor Reset Stage Fire Control Packages that will
sequence up to eight bases, with lead boiler rotation,
adjustable reset ratio, set point boiler rotation, and
microprocessor control. This control will fi re bases as
required to maintain supply water temperature at a desired
set point, which is automatically varied based on outdoor
air temperature. Consult boiler manufacturer for more
information.
PLACES TO AVOID LOCATING THERMOSTAT
Dead Spots
Behind Doors
Corners and Alcoves
Hot Spots
Concealed Pipes
Fireplaces
TV Sets
Lamps
Direct Sunlight
Kitchens
Cold Spots
Concealed Pipes or Ducts
Stairwells
Drafts
Unheated Rooms on other side of Wall
ELECTRICAL WIRING
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation.
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WARNING
Electrical shock hazard. Turn OFF electrical power
supply at service panel before making any line
voltage connections. Failure to do so could result
in death or serious injury.
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