Trinity
│
Installation and Operation Instructions
Ti Series
48
Boiler Lights
rough or
pulsates
Typically an imbalance in the
Air to gas ratio
1.
Ensure the vent lengths are in compliance with Section 4.0.
2.
Check venting and combustion chamber for blockage – clean
combustion chamber.
3.
Check for proper sustained gas line pressure.
4.
Momentarily remove the intake pipe from the boiler during ignition, if
unit lights smoothly with intake pipe disconnected reconnect and check
for proper combustion, see Section 8.0.
Fan appears
to be creating
a noise in the
house
Slight vibration can cause
noise in the residence
(This is not a warranty issue)
Use flexible gas line to insolate the vibration noises between the gas valve
and the line.
Don’t hang gas lines from floor joists.
Use rubber insulators with gas line supports.
Making a rubbing noise.
((This is not a warranty
issue))
If gas valve is not held when the gas nipple is connected, the force of
tightening the fitting can damage the valve, and warp the fan housing.
If pipe is used, the gas line must not create any forces to the valve, either
vertically (weight of line), or horizontally (misaligned connection)
Display Goes
Blank
No power to control, blown
control fuse or control failure
1.
Reset power, if display comes back on contact NTI for assistance.
2.
Ensure 120VAC is being supplied to the boiler.
3.
Check the internal fuse in the Sentry – to access the internal fuse,
remove the front decal to reveal the screws securing the face plate cover.
If fuse has blown replace with equivalent.
4.
Replace Sentry 2100 controller.
The following are the resistance charts for diagnosing the water and outdoor air temperature thermisters of the Trinity boiler.
1.
Measure the resistance of the thermister when disconnected.
2.
Using the appropriate chart, find the resistance and move either vertical (Water Sensor) or horizontal (air probe) until
the line is intersected.
3.
Move 90 degrees to the corresponding temperature.
4.
If the temperature is plus or minus 10 degrees, then the probe is operating correctly.
Outside 10K probe
0
10
20
30
40
50
60
70
80
90
100
100
75
50
25
0
T
h
o
u
s
a
n
d
s
Temperature (F)
R
e
s
is
ta
n
c
e
(
o
h
m
s
)
Trinity Thermistor Resistance Chart
1 Mohm Water Probe (Low Temp.)
0
0.25
0.5
0.75
1
1.25
1.5
1.75
2
2.25
50
60
70
80
90
100
110
120 130
140
Water Temperature (
o
F)
R
e
si
st
a
n
ce
(
M
e
g
a
O
h
m
s
)
