OPLC-2100 Operation Manual
CONFIDENTIAL
21 Harbor Park Dr. N, Port Washington Phone: 516.656.72211 Fax: 516.626.7201
5
LFR–Low Flame Rate. Sign ‘~’ shows that PID control of the Gas Valve movement is altering.
5. Operational States and System Information
5.1. Upper Line of the Display
The OPLC has five Modes of Operation:
AUTO, SET, MANUAL ON, MANUAL OFF and OFF
.
The Mode can be selected by operator or remotely. Depending on the Operation Mode and many parameters the controller can be in one of the Operational
States. The Mode and the Operational State are permanently displayed in the upper line of the LCD as follows:
LCD Indicator
Mode of
Operation
Upper line
begins with
Description
Possible Operational States
(
indicate on the right corner of the upper line)
OFF
OFF:
PPrg
(Post Purge)
Auto
AUTO: hh%
AUTO^max
%
Calculated Target Heat Amount to be
delivered, ‘hh’
in the range of (0%-100%)
Summer, D:Mild, N:Mild, D:ICOFF, N:ICOFF, N:Stbk, D:Norm,
N:Norm, HeatUp, CoolDn, Boost and FailSf
Purge, PPrg
Manual Set
SET:hh%
Target Heat Amount to be delivered,
Purge, PPrg
MAN ON
MANUAL ON:
Sets Gas Valve to selected position
Purge,PPrg
MAN OFF
MANUAL OFF:
Unconditional shutting down the Boiler.
PPrg
.
Notes: hh – Target Heat Amount (
‘hh’
in the range of 0%-100%);
^max – Heat Amount is limited by Heat Limit Set Point.
Summary of Contents for OPLC-2100
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