HTP ELP-199 - Manual (Page 65)

65
LP-294 REV. 2.20.14
F. SYSTEM TEST
All functions of Test Mode are stopped after 30 minutes if not stopped manually. In cascade mode, the boiler address must be set to “0”
before activating the system test.
SCREEN DESCRIPTION
SYSTEM TEST
Set Test Power
Off Options: Off = Boiler runs in normal operation
Low Power = Boiler runs at minimum modulation range which can be influenced by the load
adaptation
Ignit Power = Boiler runs at ignition modulation range
High Power = Boiler runs at maximum modulation range which can be influenced by the load
adaptation.
Pressing the ▼ key allows the Installer to view more data.
SYSTEM TEST 
>General Pump Off
CH-Pump Off
DHW-Pump Off
This allows the installer to test system pumps.
Options: Off = Pumps run controlled by the boiler
On = Pumps start running in test mode
Either the CH-Pump/3WV or the DHW-Pump/3WV run at the same time. In this option, it is also
possible to switch a 3WV in CH or DHW position.
Press the ▲ key to view return to the previous screen.
Table 30 – Installer Menu – System Test Screens
G. LAMBDA CONSTANT
These settings should only be modified by qualified personnel.
SCREEN DESCRIPTION
LambdaConstant
Gas Type
Selection
NG
Allows the installer to select gas supply.
Options:
NG = Natural gas, Methane
LPG = Liquid Pressurized Gas, Propane, Butane
Default is NG.
Pressing the ▼ key allows the Installer to view and/or adjust more data.
LambdaConstant 
Min. Mass Flow
Temp. Deviation
_0K
Allows the installer to adjust CO
2
at low power. Before making any adjustment, it is recommended
to run the boiler in system test at low power. If the CO
2
is not within specification, use this
parameter to adjust while measuring the CO
2
. The default value is 0. Increasing this value will
increase CO
2
. Decreasing the value will decrease the CO
2
.
NOTE: The range is -128 to +128. Change the value a small amount at a time to avoid wide
swings in CO
2
measurements.
Pressing the ▼ or ▲ keys allows the Installer to view and/or adjust more data or return to the previous screen.
LambdaConstant 
Max. Mass Flow
Temp. Deviation
_0K
Allows the installer to adjust CO
2
at high power. Before making any adjustment, it is recommended
to run the boiler in system test at high power. If the CO
2
is not within specification, use this
parameter to adjust while measuring the CO
2
. The default value is 0. Increasing this value will
increase CO
2
. Decreasing the value will decrease the CO
2
.
NOTE: The range is -128 to +128. Change the value a small amount at a time to avoid wide
swings in the CO
2
.
Pressing the ▼ or ▲ keys allows the Installer to view and/or adjust more data or return to the previous screen.
LambdaConstant 
Prepurge Initial
Speed
3460rpm The prepurge fan speed is measured during the first three complete heat demand cycles on the
boiler. The average fan speed is stored and displayed here. The default value is 0. The number 0
is displayed before 3 successful heat demands are completed.
Pressing the ▼ or ▲ keys allows the Installer to view and/or adjust more data or return to the previous screen.
LambdaConstant 
Prepurge Actual
Speed
3420rpm This is the prepurge fan speed of the last ignition. If this speed is not close to the Prepurge Initial
Speed displayed in the screen above, a
n “MF deviation Error” occurs. This error signals a
significant change in the air inlet, flue system, or possible heat exchanger blockage.
Pressing the ▼ or ▲ keys allows the Installer to view and/or adjust more data or return to the previous screen.
LambdaConstant 
Prepurge Initial
Speed Reset please
Switch off 0rpm
After checking the boiler, air intake, and flue system for blockage or other failure and measuring
the CO
2
values at low and high power, the installer can reset the Prepurge Initial Speed. To reset
the prepurge initial speed:
1. Press ENTER. The RPM number will begin to blink.
2. Press the
▼ key. The RPM number will go to 0.
3. Press ENTER again and the 0 RPM will stop blinking.
4. Turn boiler power off and wait 30 seconds.
5. Turn boiler power on again for the reset to occur.
Table 31 – LambdaConstant Screens