HTP EL-110, Installation Manual

Page: 73 / 97

73
Function 28 Freeze Protection
FREEZE PROTECTION
ON 28
Allows the user to set freeze protection on the boiler. Factory Default: ON (Range: ON / OFF).
Function 29 DHW Modulation Mode
DHW MODULATE MODE
NORMAL MOD 29
This parameter controls how the boiler modulates for a DHW demand. In NORMAL MOD mode, the boiler
will modulate down from high fire when there is a DHW demand. In LOW MOD mode, the boiler will
modulate up from low fire when there is a DHW demand. This mode is useful to minimize short cycling when
a large boiler and small indirect tank are used together. Factory Default: NORMAL MOD (Range: NORMAL
MOD / LOW MOD).
Function 30 Extra Boiler Mode
EXTRA BOILER MODE
OFF 30
Allows for a non HTP boiler to be controlled when the cascade output has risen above the percent of the
cascade firing rate set in this parameter. Factory Default: Off (Range: 50% - 100%).
Function 31 System Sensor Mode
SYSTEM SENSOR MODE
OFF 31
Suppresses the ‘NO FOLLOWER’ message on the display if the boiler is used as a cascade master boiler
with no follower boilers connected. Factory Default: OFF (Range: ON / OFF).
Function 32 Service Schedule
SERVICE SCHEDULE
OFF 32
Allows the user to select a service date or time based on the boiler run hours to program the boiler
maintenance schedule. Factory Default: OFF (Range: Date or Run Hours). NOTE: Without setting this
function, Functions 33/34/35/36 will not display.
Table 18
– System Setting Menu Screens
NOTE: For the following functions, you must have your maintenance function turned on.
To change, press
ENTER . The left most digit will begin to blink. Use the up
▲ or down ▼ arrows to change the
digit. Use the
 
arrow keys
to switch between digits. When you’ve made your selection, press
ENTER again.
SCREEN DESCRIPTION
Function 33 Year
SERVICE SCHEDULE
YEAR 00/00/2000 33 Allows the user to set the year of the next service reminder.
Hours
SERVICE SCHEDULE
10000’s
00 0000h 33
Allows the user to set the left two digits of the amount of run hours before next service reminder.
Function 34 Month
SERVICE SCHEDULE
MONTH 00/00/2000 34
If the date function was selected, this function allows the user to program the month. If you selected the
run hour function, you will need to program 10,000 hours, if required.
Hours
SERVICE SCHEDULE
10000’s 00
00 00 34
Allows the user to set the two middle digits of the amount of run hours for the next service reminder.
Function 35 Day
SERVICE SCHEDULE
DAY 00/00/2000 35
Allows the user to set the day of next service reminder.
Hours
SERVICE SCHEDULE
10000’s 0000
00 35
Allows the user to set the 2 right digits of the amount of run hours for the next service reminder.
Function 36 Telephone
TELEPHONE #
000 000 0000 36
Allows the user to input a telephone number that will be displayed when maintenance is required.
Table 19
– Maintenance Reminder Function Screens
G. RESETTING THE MAINTENANCE SCHEDULE
When the system control flashes MAINTENANCE REQUIRED, it is advisable that you call for service. After the
service is performed, reset the schedule for the next required service by using the following steps.
Press
ENTER on the display for 3 seconds. The Menu code will appear as 000. This does not change. Press
ENTER again. SERVICE SCHEDULE RESET will be displayed. Using the right arrow key

scroll to the selection
of year or hours. Select enter to reset the mode you are in. Use the up
▲ or down ▼ arrow key for each
adjustment then select ENTER when reset is complete.