Sahara -Pak HC-1260 Instruction Manual page 71

ALLEN-BRADLEY PANELVIEW COMPONENT C400
OPERATIONAL GUIDE
K. Program Steps (continued)
6 240 min.
7 242 min.
8 330 min.
9 420 min.
10 480 min.
Reference 230 – for use with Sahara Model HC Heat-of-Compression – no heater
Page 16 of 17
If the dew point rises above the analyzer set-point or the
Dew Point/ +stdby Timer selector switch is on Timer then;
De-energize SV5-1;
Closes V13
De-energize SV1-1
Energize SV1-2
Opens V4, 5, 7 & 10
Closes V3, 6, 8 & 9
"Right Tower Onstream"
Start time delay of 60 seconds;
When time delay times out if pressure switch PS2 is greater than
10 PSI (.69 Bar)
"Fail to Shift" alarm
De-energize SV2-2
Energize SV2-1;
Opens V1 & 15
Closes V2
"Heating Left Tower"
De-energize SV2-1
Energize SV2-2;
Opens V2
Closes V1 & 15
Energize SV4-1;
Opens V12
Energize SV3-1;
Opens V11
"Stripping Left Tower"
De-energize SV4-1;
Closes V12
"Re-pressurizing Left Tower"
When PS3 reaches setpoint of 80 PSI (5.52 Bar) then,
Energize SV5-1;
Opens V13
"Cooling Left Tower"
If dew point is below the analyzer set-point and the Dew Point/Timer
selector switch is on Dew Point then;
Begin standby
"Standby"
Rev 2
10/17/2013