Tx Series Installation and Operation Instructions
│
Trinity
71
tYPE
– indicates that the
Appliance Type setting is
ready to be adjusted.
Step 2a
– set
Appliance Type per
Table 17-4.
Step 2b
– once correct
Appliance Type setting is
displayed, press OK to
enter the value.
Step 1a
– turn power off
Step 1b
– while holding the
UP and DOWN buttons, turn
the power on; continue to
hold until tYPE is displayed.
Controller Replacement Instructions
This section provides important information necessary for successfully replacing the boiler controller, NTI P/N
84712, in the event the original controller fails. The replacement controller must be field configured to operate on
the Tx boiler model it is being installed on; this is accomplished by adjusting the controller’s Appliance Type
setting.
Appliance Type
– the Appliance Type setting is retained in the boiler controller; the setting determines certain
operating characteristics specific to a particular boiler model, such as combustion blower RPM (i.e. firing rate) ;
see Table 17-4 for a list of Appliance Types and corresponding boiler models.
Table 17-4 Appliance Type Setting by Boiler Model
Model
Gas
Appliance
Number
Model
Gas
Appliance
Number
Tx51
NG
1
Tx101
NG & LP
3
LP
6
Tx151
NG & LP
4
Tx81
NG & LP
2
Tx151C
NG & LP
5
Replacement Procedure
– the replacement controller is factory set with an Appliance Type setting of zero (0);
upon replacement of the control the display will prompt you to set the appliance type, i.e. “
tYPE 0
” will
automatically be displayed on the screen (see Notice below). Adjust to the applicable Appliance Type setting
(see Table 17-4) using the UP & DOWN buttons; press the OK button to enter the value. Check the appliance
setting via Installer Menu setting 2-11; make sure it matches the correct boiler model as per Table 17-4. Set the
remainder of the control settings as desired. Verify proper boiler operation for DHW and Central Heat demands.
If
“tYPE 0”
does not automatically display upon replacing the controller, the Appliance
Type setting must be adjusted using the “Appliance Selection Method” detailed below.
Appliance Selection Method
– to change the Appliance Type setting, perform the following steps:
1.
Turn the power off; while holding the UP and DOWN buttons, turn the power on using power switch on the
display console; see Figure 17-8. Continue holding the UP and DOWN buttons until “
tYPE 0
” is displayed on
the screen, then release the UP and DOWN buttons.
2.
Increase the setting by press the UP button. When the correct setting is displayed, see Table 17-4; press the
OK button to enter the value.
3.
Wait for a minimum of 1 minute, then cycle the power off and on.
4.
Check the appliance setting via Installer Menu setting 2-11; make sure it matches the correct boiler model as
per Table 17-4. Set the remainder of the control settings as desired. Verify proper boiler operation on
Domestic Hot Water and Central Heat demands.
Figure 17-8 Appliance Selection
