Boiler Lights
rough or
pulsates
Typically an imbalance in
the Air to gas ratio
Ensure that the venting lengths are in compliance with Section 3.4
Ensure that the line pressure during operation does not drop more than 20% from the
static line pressure.
Momentarily remove the intake vent from the boiler during ignition, if unit lights
smoothly with intake vent disconnected reconnect and check for proper combustion if
unit maintains smooth operation after ignition. (See Section 5.2) Calibrate for proper
combustion. If problem persists contact NY Thermal.
Heat exchanger may be dirty, remove burner door and inspect, clean if necessary.
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.
Fan appears
to be creating
a noise in the
house
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)
The following are the thermister curves for diagnosing the water and outdoor air sensors.
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
Thousands
Temperature (F)
Resistance (ohms)
Tri nity T he rm istor Re si sta nc e C ha rt
1 Mohm W ater Probe (Low Te mp.)
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)
Resistance (Mega Ohms)
Trinity Thermistor Resistance Chart
1 Mohm W ater Probe (Hi Temp.)
0
20
40
60
80
100
120
160 170 180 190 200 210 220 230
Water Temperature (
o
F)
Resistance (Kilo Ohms)
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