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Troubleshooting
Algas-SDI Operations & Maintenance Manual P/N 52632
6-29
BOARD CONNECTION POINTS
P1 and P2
Liquid LPG Float Switch (5 VDC)
P3 and P4
Alarm – Optional Use (12 VDC, Max. 100 mA)
J4 – (TOP)
Terminals 1 and 2 Temperature Control Thermocouple TC1
J4 – (BOTTOM) Terminals 3 and 4 High Temperature Thermocouple TC2
P9 and P10
Heater Relay Power (12 VDC)
P11 and P12
Inlet Solenoid Valve (Power 208 to 240 VAC)
P13 and P14
AC Control Power (15 VAC) into control board
Figure 11 - Vaporizer Operating Temperature Chart
(as measured at TP1 on the control board)
349°F
(176°C)
2
nd
High Temperature Safety Shutdown
320°F
(160°C)
1
st
High Temperature Safety Shutdown
266°F
(130°C)
When the heaters shut off, the temperature reading
may continue to climb before it starts to again
decrease.
203°F
(95°C)
Heaters off temperature
194°F
(90°C)
Heaters on temperature
When the heaters come on, the vaporizer temperature
reading may continue to drop before the temperature
starts to increase.
176°F
(80°C)
158°F
(70°C)
Temperature when LPG inlet solenoid opens
Cold Start