NTI Trinity Ti 100, Installation And Operation Instructions Manual

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8.2 Sentry 2100 Operation
The Trinity boiler employs a pneumatic modulation system. This modulation system increases or decreases the velocity of the blower, to
meet the demand for heating. The gas valve, senses this change, in blower pressure, and introduces the required amount of gas, to ensure
correct combustion. The term “Set Point” is used to indicate the desired temperature that the Trinity will try and maintain, by increasing
or decreasing the input.
Note:
1- For Combi units the Heating Circ. (C1) is powered for both heating and domestic hot water.
2- For Combi units the Aux Circ. (Ap) powers the 3-way diverter valve. (Located in the boiler)
3- Combi units only, unit cycles on temperature (140-180ºF) for 1 to 24 hours (StO setting) after last domestic hot water call, unless
StO is set to OFF.
4- For Combi units the burner turns on when the water temperature is less then 190
°
F on the initial call, afterwards it turns back on
when water temperature is less then LO set point.
8.3 Setting the Sentry 2100
Programming is accomplished by a series of three push buttons located on the bottom side of the control. ( Function,
↑
and
↓
). To enter
the programming mode, press the function key once. To scroll through the various menu options depress
↑
until the menu is displayed.
To alter the value press Function once, and the current value will be displayed, then use
↑
for up, and
↓
for down, until the desired value
is obtained. To enter the selected value press Function , which will return to the menu. When all desired values are selected, scroll to the
RUN menu, and press Function, which exits the Programming Mode and initiates normal operation.
T-C & A-C Open T-C Closed &
A-C open
T-C Closed &
A-C Close
T-C Open & A-C
Closed
T-C & A-C Open
(Storage)
Note 3
Condition Standby
Note 3
Heating Only Domestic Only Domestic Only Storage Mode
Set Point - HI
Calc.
L0 L0
160
°
F
Burner On - HI
Calc
– DIF (LO-10)
Note 4
(LO-10)
Note 4
140
°
F
Burner Off - HI
Calc
+ 10
200
°
F 200
°
F 180
°
F
Heat Circ. (C1)
Off On Off
Note 1
Off
Note 1
On
Aux. Circ. (Ap)
Off Off On
Note 2
On
Note 2
On
T-C & A-C Open
(No Storage)
T-C Closed &
A-C open
T-C Closed &
A-C Close
T-C Open &
A-C Closed
T-C & A-C Open
(Storage)
Note 3
Condition Standby Heating Only Domestic Only Domestic Only Storage Mode
Set Point - HI L0 L0
160
°
F
Burner On - HI – DIF (LO-10)
Note 4
(LO-10)
Note 4
140
°
F
Burner Off
- HI + 10
200
°
F 200
°
F 180
°
F
Heat Circ. (C1) Off On Off
Note 1
Off
Note 1
On
Aux. Circ. (Ap) Off Off On
Note 2
On
Note 2
On