OPLC-2100 Operation Manual
CONFIDENTIAL
21 Harbor Park Dr. N, Port Washington Phone: 516.656.72211 Fax: 516.626.7201
10
6. Mode of Operation
The upper line of the display shows the current mode of operation (
AUTO, SET, MANUAL ON, MANUAL OFF,
and
OFF
), indicates
amount
of heat (thermal energy) to be supplied during AUTO or SET operation.
The right corner of the
upper line indicates the current Operational State. (Please refer to the detailed description on section 10).
The OPLC-2100 operates in one of the following modes:
Operation
Mode
Description
AUTO
The controller provides automatically regulated heat distribution by cycling a boiler on and off and
modulating the flame cycling in accordance with the measured temperatures, time of day, and selected
settings. This mode is designed to be the main mode of operation. If the system settings are set
properly, then there is no need in manual intervention in the system performance virtually at any
weather condition.
In AUTO mode the controller distinguishes three periods of day:
1. Morning Boost period begins at 5:00AM. The Morning Boost setting defines the boost duration.
During the Boost period the Boiler will deliver maximum amount of the thermal energy. (By using
‘Boost Advance’ set point operator can shift start of the Boost period for early time)
2. Daytime period (from boost period end to 10PM). Normal daytime operation.
3. Nighttime period (10PM to 5AM). The amount of delivered heat can be reduced against the daytime
period, as defined by the COLD NIGHT and NIGHT SETBACK settings.
Note:
If Out Door Temperature has been reached Day Mild or Cold Night Set Point the Boiler will be shut
down via special procedure named “Post Purge” (which is will be indicated on the right corner of the
upper line of the LCD as
‘PPrg’
operational state). ‘
D:Mild’
or ‘
N:Mild’
operational state will be
displayed (for DAY/NIGHT mild weather) after Post Purge procedure has finished. In the summer
season and InDoor CutOff the Boiler will be shut down in the same way and operational state will be
indicate as
‘Summer’
or ‘
D:ICOFF’(‘N:ICOFF’)
accordingly. On this situation any heating process
can be controlled by entering SET, MANUAL ON, MANUAL OFF, and OFF operations.
(For the detailed description of the Operational states, please refer to section 10).
SET
The amount of delivered heat is set manually to the desired value (0 to 100%). The heating cycle is
fixed and doesn’t change. This mode can be useful at some circumstances (e.g. if the temperature
sensor failed and automatic control is impossible)
MAN ON
This operation allows setting the Gas Valve to selected position or manually modulating the flame.
Can be used on emergency or adjustment period.
MAN OFF
Unconditional shutting down the Boiler by meaning of the Post Purge procedure. This mode can be
used in emergency if one wants to shut down the boiler.
OFF
One should select SET OPER MODE item in the menu to change the mode, press Enter, then, with Up or Down key select
a new mode, and press Enter. When the SET mode is selected, the new heat amount percentage must be entered. During the
Post Purge procedure (‘PPrg’ operational state) new operation can not be entered.
Summary of Contents for OPLC-2100
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