TriangleTube Prestige Excellence Part 1 - Manual (Page 48)

[ 3140 ] This is the normal CH operation
cycle. After the flame is proven and stabi-
lized the burner will fire at low input for
approximately 1 minute. After this time
period, the control module will begin to
modulate the burner firing rate based on
actual boiler outlet temperature and the set
point temperature.
6. Allow the boiler to operate and allow the
boiler outlet temperature to reach the set
point temperature.
[ 6180 ] This begins the burner shutdown
and post purge cycle. The CH circulator
will continue to run until the room thermo-
stat is satisfied.
7. Lower the room thermostat set point below
the room temperature to end the call for
heat.
[ 1180 ] This begins a post purge cycle.
When the room thermostat is satisfied, the
boiler will shutdown. The control module
will close the gas valve and the blower will
continue for 30 seconds for a post purge
cycle before shutting down. If another call
for heat is initiated, the boiler will remain
off for an additional 30 seconds before
starting a new ignition sequence.
[ 7180 ] The CH circulator will continue
for a 1 minute post pump cycle.
8. Verify the operation of the boiler by repeat-
ing the operational sequence several times.
9. Return the room thermostat to a desired set-
ting.
Set DHW Storage Temperature
1. Press the mode button until the display
shows “PARA”. This is the Parameter
mode of the control.
2. Press the STEP button until the first digit
on the display shows “1”. The last three
digits on the display shows the DHW stor-
age temperature setting.
3. Press the “+” or “-” button to change the
setting of the DHW storage temperature.
The DHW outlet temperature is con-
trolled by the factory supplied mixing
valve. A low DHW storage temperature
will affect the overall listed DHW perfor-
mance.
4. Press the “STORE” button to save the set-
ting. Press the “MODE” button until the
display shows “STBY”
Operation Verification - Domestic Hot Water
1. As outlined in the verification for space
heating, repeat STEPS 2 through 4.
2. Reference Set DHW Storage Temperature
outline and set the DHW to the factory set-
ting of 140ºF. A DHW call for heat should
be initiated and the following display
should occur.
[ 5180 ] This is a Fan/Air Flow Check. The
burner blower will be energized momentar-
ily prior to the pre-purge cycle.
[ 1180 ] The prepurge cycle. The boiler
blower and CH circulator become ener-
gized and the 10 second pre-purge cycle
begins.
[ 2180 ] The boiler will begin the ignition
sequence. The same sequence of establish-
ing flame, trail for ignition and attempts for
ignition as described in the space heating
applies for domestic hot water.
[ 4180 ] This indicates normal operation
for DHW. The burner will begin modulat-
ing its input based on the length of demand
by the DHW setting. The burner will not go
into the low input rate for the 1 minute
flame stabilization period that occurs in CH
mode.
NOTICE
Start-Up Preparation
41