HTP MODCON1000 - Part 10 - Start-Up Procedures for Installer; Boiler Control Status Menu

58
LP- 428 REV. 9.2.14
Table 17 – NOTE: It is important to note that the user can adjust the heat curve down by lowering the central heating temperature.
PART 10 – START-UP PROCEDURES FOR INSTALLER
A. BOILER CONTROL STATUS MENU
The boiler control also has the ability to review the status of the system. To access the status screens, simply press the right arrow .
Once the first value is displayed, press the up arrow ▲ or down arrow ▼ to access additional information. At any point you may press
the RESET button to exit the status screen. Listed below are the status screens.
SCREEN
DESCRIPTION
SUPPLY SEN 180
o
F
RETURN SEN 150
o
F
This screen is displayed after pressing the  key as described above. This shows the actual temperature that
the supply and return sensors are measuring. NOTE: If the boiler is configured to use a 0 – 10 volt input, the
return sensor is disabled and the second line of the display will be blank.
Press the ▼ key once.
CH SET 180
o
F
SUPPLY 122
o
F
The screen displays the current central heating temperature set point on the top line. NOTE: This temperature
set point may vary from what was set in the boiler settings if an outdoor sensor is used. The actual temperature
measured by the supply sensor is displayed on the bottom line.
Press the ▼ key once.
CH DEMAND OFF
BOILER
This screen displays the central heat demand set for the cascade system.
Press the ▼ key once.
0-10 SIGNL ON
*
Shows if 0 – 10 volt is enabled.
Press the ▼ key once.
CAS SET 190
o
F
SYSTEM 112
o
F
NOTE: This screen will appear only when set in Master Boiler mode.
This screen displays the cascade set point (maximum 190
o
F) on the top line. The system sensor value reading is
on the second line. The control will cascade the boilers up to this set point depending on demand.
Press the ▼ key once.
DHW SET 119
o
F
DHW 117
o
F
This screen displays the domestic hot water temperature set point on the top line. The actual temperature
measured by the tank or return line sensor (HTP 7250P-325) is displayed on the bottom line. If a mechanical
aquastat is used in place of the recommended sensor, the second line will display ‘OFF’ in place of the
temperature if the aquastat measures close to its set temperature, or ‘ON’ in place of the temperature if the
aquastat temperature is too low.