Instinct Installation Manual

CHAPTER 11 - START-UP PROCEDURES
65
Manual Operation
Released
CH1
DHW
Off
Off
Off
CH2
FAN
WARNING
11.3.4 Verify Flame Pattern and Combustion
1. Check the flame pattern through the observa-
tion port of the heat exchanger. The flame should
be blue and stable. The flame should be over the
length of the burner head. It is not possible to deter-
mine correct combustion by inspecting the colour
and pattern of the flame. It is important to measure
combustion with a calibrated flue gas analyser.
NOTICE
Combustion testing and adjustments must be
performed by a qualified installer, service agency
or the gas supplier. All combustion measurements
must be performed with recently calibrated
equipment (1 year max.) to ensure proper reading
and accuracy.
2. Test for CO2 or O2 and for CO during high firing rate.
The combustion readings must be within the range
listed in Table 6 on page 66. The CO level must
not exceed 150 ppm for natural gas or 200 ppm
for propane gas. Perform the following procedure
to manually place the burner into high fire.
a. Touch simultaneously on the and soft
keys for 3 seconds to access the functions for the
installer. Reference Section 9.1 on page 43 .
b. Enter the installer access code “054” by using
the and soft keys to select a digit location
and the and soft keys to change the digit.
Touch the soft key to enter the access code.
c. Touch the soft key to highlight the Manual
Operation icon then touch the soft key.
d. Touch the soft key while the FAN icon is
highlighted to manually fire the burner and
power the CH circulator(s).
NOTICE
An adequate CH load must be present to dissipate
the heat generated during the combustion test. If an
adequate CH load is not available, an indirect water
heater can be used to dissipate the heat by creating
a DHW call which will enable the DHW circulator.
e. Touch the soft key to adjust the firing rate
from 1% to 100%. Hold down the
soft key to
rapidly increase the firing rate.
f. Touch the soft key while the FAN icon is
highlighted to shutdown the burner.
3. If the combustion levels during high fire (100%) are
outside the acceptable levels, adjust the THROTTLE
SCREW (see Fig. 27 on page 65) according to
Table 6 on page 66.
4. Once the combustion level is set at high fire (100%),
manually place the boiler into low fire (1%) mode by
touching the soft key to adjust firing rate down.
5. Verify the combustion levels during low fire (1%) are
within the acceptable combustion levels in Table 6
on page 66.
If the combustion levels at low fire (1%) are not
within the range given in
Table 6 on page 66 ,
shut the boiler down and contact Triangle Tube
Technical Support. Failure to comply with this
requirement can result in substantial property
damage, serious injury, or death.
Table 5 - Throttle Screw Adjustment
Direction INSTINCT Solo/Combi
Clockwise
Decrease CO
2
Increase O
2
Counter-Clockwise
Increase CO
2
Decrease O
2
Throttle Screw
Fig. 27 - Throttle Screw Location
CHAPTER 11