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1.
2.
3.
4.
5.
6.
7.
Confirm that all water, gas and electricity are
turned off.
Verify that water piping, venting, gas piping and
electrical wiring and components
are installed
properly. Refer back to previous sections of these
instructions
as well as equipment
manufacturer's
instructions
as necessary.
Fill the boiler and system with water, making certain
to vent all air from all points in the system. To check
water level in the system, open and close each vent
in the system. Water should exit from each vent
when it is opened.
The pressure reducing valve on the fill line will
typically allow the system to be filled and pressurized
to 12 PSI. Consult the valve and expansion
tank
manufacturer
for more specific information.
Check joints and fittings throughout
the system for
leaks. If leaks are found, drain the system and repair
as required.
Connect a manometer
at the sediment trap location.
Refer to Figure 6. Remove pipe cap and provide
fittings as required.
Confirm that the gas supply pressure to the boiler is
above the minimum and below the maximum
values
for the gas being used. See the end of Section 4 for
these values. If a supply pressure check is required
isolate the boiler and gas valve before performing
the pressure check. If the supply pressure is too high
or too low, contact the gas supplier.
8. Adjust set point temperature
and differential settings
as follows:
a.
Temperature
Adjustment: A potentiometer
located on the control board is used to adjust the
set point temperature
on the boiler appliance.
This can be set between 70 and 210 degrees.
b.
Temperature
Differential Adjustment:
A "DIP"
switch is located on the control board.
Depending
upon the configuration
of the "DIP"
switch, the differential selection is 6, 12, 20, or
30. See the figure below for further detail.
NOTE: the differential adjustment
is the value below
the set point, when the burner will fire. (Example:
190 degrees set point, 30 degrees differential, burner
will not fire until return water drops below 160
degrees and will modulate the flame until 200
degrees is reached,
then post purge and idle state
will be achieved.
If at any point "IT is satisfied, the
cycle will be interrupted
by post purge and idle
state.
9. Turn on electricity and gas to boiler. Check to see if
LED light is illuminated
on control board.
10. Light the boiler by following the Lighting/Operating
Instructions in this section. The initial ignition may
require several tries as the piping is purged of air.
11. Use the sequence
of operation
description and
Figure 17 in Section 6 (Electrical) to follow light-off
and shutdown
sequences
and to assist in diagnosing
problems. If the boiler does not function properly,
consult Section 8, Troubleshooting.
CK
1
2
CK
I
2
CK
CK
1
2
1
2
Differential
Dip Switch
Adjustments
18
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