NTI TRX - Boiler Operation and Settings

7
Part 2 - Operating Instructions
A. Boiler Operation
• Do not block flow of the boiler exhaust vent or intake pipe.
• Should overheating occur or gas supply fail to shut off, do not turn
off or disconnect electrical supply to the circulator. Instead, shut
off the gas supply at a location external to the boiler following the
instructions on page 2.
• Do not use this boiler if any part has been under water. Immediately
call a qualified service technician to inspect the boiler and replace
any part of the control system or gas control that has been under
water.
OPERATING INSTRUCTIONS
1. STOP! DO NOT use this boiler unless it is completely lled with
water.
2. Ensure electrical power to the boiler is powered OFF.
3. This boiler is equipped with an ignition device which
automatically lights the burner. DO NOT attempt to light the
burner by hand.
4. Turn the gas shut-off valve clockwise to the “OFF” position. Do
not force.
5. Wait ve (5) minutes to clear out any gas. If you smell gas,
STOP! Follow the information on page 2, this manual. If you
don’t smell gas, go to the next step.
6. Turn manual gas shut-off valve to the “ON” position.
7. Turn ON electrical power to the boiler.
8. Generate a call for hot water by opening a hot water faucet in
the system.
9. If the boiler will not operate, follow the instructions on page 2
to turn off the gas to the boiler. Then call your qualied service
technician or gas supplier.
B. Ignition Procedure
Press the ON/OFF button on the control panel to switch on the
boiler. The display shows:
The ignition of the burner is indicated on the display by the symbol
. The dashes underneath indicate power level.
Operating Mode
Stand-by
CH request
supply temperature displayed
DHW request
DHW setpoint displayed
WARNING
C. Central Heating (CH) Temperature Adjustment
It is possible to set the central heating (CH) temperature by pressing
the buttons described in Figure 1, Item 8.
The CH temperature range is 68 - 113
o
F (low temperature) and 95 -
179
o
F (high temperature).
NOTE: The CH Setpoint cannot be changed by pressing the buttons
item 8 (Figure 1) if an outdoor sensor is connected to the appliance.
When using an outdoor sensor, the appliance will automatically
change the CH target temperature based on the outdoor reset curve.
D. Domestic Hot Water (DHW) Temperature Adjustment
Not for non-COMBI using Aquastat
It is possible to set the domestic hot water (DHW) temperature by
pressing the buttons described in Figure 1, Item 2.
The DHW temperature range is 97 - 140
o
F. The previously set value will
flash on the display.
Figure 2 - Turn On the Boiler
Figure 3 - Central Heating (CH) Temperature Adjustment
Figure 4 - Domestic Hot Water (DHW) Temperature Adjustment