intech 21 OPLC-2100, Operation Manual

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OPLC-2100 Operation Manual
CONFIDENTIAL
21 Harbor Park Dr. N, Port Washington Phone: 516.656.72211 Fax: 516.626.7201
6
5.2. Operational States and Bottom Line of the Display
Upper Line of LCD Bottom line of LCD Description:
Operational
Mode
Operational State
OFF PPrg (Post Purge) aa.a ps FR=yy.y%
When mode is changed to ‘ OFF’
operation Gas Valve moves to Close position. Where:
aa.a ps
– boiler’s
pressure (in psi), FR (Firing Rate) - current Gas Valve position (in
percents)
ttsec LFR=zz.z%
When FR == LFR set point then Boiler shats down. Gas Valve will stay on LFR position
until
- Post Purge Time Delay ( ttsec ) expired.
aa.b ps FR=0.0% After Post Purge Delay the valve is start moving to 0.0% position. aa.b ps - pressure
AUTO:xx%
AUTO:0%
AUTO:100% D:Norm , N:Norm ,
N:Stbk ,
Cyc:A/B ON:C
or
Cyc:A/B OFF:D
variants:
1.Cyc:0/CL OFF^CL
2.Cyc:CL/0 ON^CL Regular Cycle . CL (Cycle Length) is A + B. in minutes.
A = Calculated time amount the boiler must be ‘On’; B = CL – A;
C = Current minutes boiler is ‘On’ or D = = Current minutes boiler is ‘Off’
0% heat to be delivered , Boiler is OFF more then CL minutes;
100% heat to be delivered, Boiler is ON more then CL minutes;
(sine’^’ = shows that the boiler stays on ‘On’ or ‘Off’ more time then Cycle length)
AUTO:0% D:Mild , N:Mild ,
D:ICOFF , N:ICOFF
Cyc:0/CL OFF:D,
Cyc:0/CL OFF^CL Mild Weather or InDoor CutOff.
0% heat to be delivered, Boiler is OFF D minutes (D < CL);
0% heat to be delivered, Boiler is OFF more then CL minutes;
AUTO:100% Boost Span=BSm ON:BT
Morning Boost. BS = Boost Span. BT = Current minutes boiler is ‘On’.
AUTO:xx% Purge aa.a ps FR=yy.y%
ttsec LFR= zz.z%
Boiler is On. Gas Valve moves toward to LFR. When FR riches LFR, then starts Purge
Delay down counter (
ttsec ). Purge is finish when ttsec == 0.
AUTO:xx% PPrg aa.a ps LFR=yy.y%
ttsec LFR=zz.z%
aa.b ps FR=0.0%
See PPrg on the ‘OFF’ operation description