10
INSTALLATION cont.
Boiler Intake Connection:
Remove the intake shipping cover. The round
collar on the back of the intake vent passes
through the cabinet wall and slides over the
crimped end of the air intake pipe inside the unit.
This joint should be secured with aluminum foil
tape. The outer flange of the wall vent is fastened
to the outer wall of the cabinet using sheet metal
screws.
Access Doors:
• A lockable access door is provided to the
compressor and electrical compartment. A
separate access door is also provided to the
evaporator/heat exchanger compartment.
• A light switch is on the wall of the compressor
control compartment.
Electrical:
• The single point electrical power connections
are made in the electrical control compartment.
• The microprocessor control furnished with the
unit is supplied with its own power supply
factory wired to the main power of the BL.
• Check the unit data plate voltage to make sure
it agrees with the power supply. Connect power
to the unit according to the wiring diagram
provided with the unit.
• The power and control wiring may be brought
up through the utility entry. Protect the branch
circuit in accordance with code requirements.
Control wires and power should not be run inside
the same conduit. The unit must be electrically
grounded in accordance with the current National
Electric Code.
• Power wiring is to the unit terminal block or
main disconnect. All wiring beyond this point
has been done by the manufacturer and cannot be
modified without effecting the unit's
agency/safety certification.
Note: Startup technician must check motor
amperage to ensure that the amperage listed
on the motor nameplate is not exceeded.
STARTUP
Pre Startup:
After the installation and immediately before the
startup of the boiler be sure that these items have
been checked.
1.
Verify that electrical power is available to the
unit.
2.
Verify that any remote stop/start device
connected to the boiler controller is requesting
the boiler to start.
3.
Verify that liquid flow is present through the
boiler from the building.
4.
There should be a building load of at least
25% of the boiler capacity in order to properly
check operation.
5.
With the main power switch off, review the
Controller Manual provided with the boiler.
Understand the keypad functions, how to set the
leaving water temperature setpoint and how to
initiate the Run State.
While performing the Startup, use the BL Startup
Form at the rear of this booklet to record motor
amps and any additional comments.
Startup:
• Use the General Check List at the top of the
Form to make a last check that all the
components are in place, water flow is present,
and the power supply is energized.
• Using the keypad, individually set the outputs
in “Manual On” to confirm relay closure.
