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XII. System Start-up(continued)
1. Test the ignition system safety shut-off by
B. Test Safety Limits Controls
disconnecting the flame sensor connector
(black plug with orange wire) from the flame
ionization electrode. The boiler must shut
down and must not start with the flame sensor
disconnected.
2. Test the flow switch by disabling the primary
loop circulator. The boiler must not start if
flow is not present.
3. Test any other external limits or other controls
in accordance with the manufacturer's
instructions
.
Verify that the boiler starts and stops in response
C. Check Thermostat Operation
to calls for heat from the heating thermostat and
indirect water heater thermostat. Make sure that
the appropriate circulators also start and stop in
response to the thermostats.
As shipped, the Central heat (CH) set point supply
D. Adjust Supply Water Temperature
temperature set point is 180°F (82.2°C) and,
domestic hot water (DHW) supply temperature
is set point is 170°F (76.7°C). If necessary, adjust
these to the appropriate settings for the type of
system to which this boiler is connected. For
information on how to adjust central heat , refer
to "Setup and Tuning" section of the Concert
Boiler Manual.
Adjust the CH and DHW thermostats to their final
E. Adjust Thermostats
set points.
Prior to placing the boiler in operation, the
F. Testing of Controls and Safety Devices
installing contractor or other responsible
personnel must perform safety and control device
limit tests to ensure proper operation of the
appliance. Refer to Table 25 for recommended
method(s) of carrying out these safety limit
devices tests.
Make sure that all adjustments at high fire are
made with the throttle, not offset screw (see
Figure 26).
The offset screw has been factory set using
precision instruments and must never be
adjusted in the field unnecessarily.
Attempting to adjust the offset screw could
result in damage to the gas valve and may cause
property damage, personal injury or loss of life.
Each BFIT Series boiler is tested at the factory
and adjustments to the air fuel mixture are
normally not necessary. Improper gas valve or
mixture adjustments could result in property
damage, personal injury or loss of life.
TM
54
WARNING
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