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XIII. System Start-up(continued)
E. Pump Control
Ensure the appropriate pump parameters are selected
in the Pumps menu of the Concert control. Refer to
the Concert Control manual for more information.
F. Check Thermostat Operation
Verify that the appliance starts and stops in response
to calls for hot water. Make sure that the appropriate
circulator(s) start and stop.
G. Adjust Supply Water Temperature
As shipped, the central heat and DHW setpoint
is 180°F (82.2°C). If necessary, adjust this to the
appropriate settings for the system to which this
appliance is connected. For information on how to
adjust the set point, refer to the "Setup and Tuning"
section of the Concert
1. For a hot water supply boiler supplying domestic
hot water, at the factory setting, a mixing valve
is required to control the supply water at a
temperature that will not cause scalding.
Table 33: Safety Device Test
Component
High Gas
Pressure
between the gas valve and the
Switch
Low Gas
Increase the setting of the switch
Pressure Switch
Vestibule
Thermal Fuse
thermal fuse. Cycle the power.
Blocked
Condensate
blocked condensate switch. Cycle
Switch
While the appliance is running
Low Water
push and hold the LWCO test
Cutoff
Reduce the water flow rate with
Water Flow
a manual shutoff valve until the
Switch
58
Control manual.
TM
Test Method(s)
Close the manual gas valve
blower. Cycle the power.
until the switch trips.
Disconnect one wire of the
Disconnect one wire of the
the power.
button until the control shuts
down the main burner.
appliance shuts down.
H. Testing of Controls and Safety Devices
Prior to placing the appliance in operation, the
installing contractor or other responsible personnel
must perform safety and control device limit tests to
ensure proper operation of the appliance. Refer to
Table 33 for recommended method(s) of carrying out
these safety limit devices tests.
After Lockout
Annunciation
Manually reset the Concert Control
and switch. Adjust the switch to its
normal setting.
Manually reset the Concert Control
and switch. Adjust the switch to its
normal setting.
Re-connect wiring to the thermal
fuse. Reset thermal fuse lockout.
Re-connect wire to the blocked
condensate switch. Reset the
blocked condensate switch lockout.
Manually reset the Concert Control
and reset the LWCO by pressing the
reset button.
Adjust manual valve to normal
position.
Actual Alarm
Message
Hard Lockout.
Gas Pressure
Switch
Hard Lockout.
Gas Pressure
Switch
Hard Lockout.
Thermal Fuse
Hard Lockout.
Blocked
Condensate
switch
Hard Lockout.
Low Water Level.
Low Water Flow
AMP 400-1000L I&O Manual
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