APPENDIX B: ELECTRICAL AND DATA CONNECTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 B-11
Output Voltage Selection: For STANDARD VERSION, AC or DC 24 volt output power is
selectable by connecting the proper AC or DC plug as shown on the
next page. REMOTE VERSION units are 24 VDC only.
NOTES:
● To set the Control for AIR HEAD VALVE operation, you must make one of two connections:
Either jumper HEAD VALVE CONNECTOR pin 2 and pin 4.
Or jumper
J4A pin 6 (AIR HEAD) to <0V OUT> (see J4A/B pin out).
● For Standard Version, to change from 24VAC output power to 24 VDC output power, the
white AC connector with black jumper should be replaced with the white DC plug with red
jumper in connector J8 on the Main Circuit Board. These color coded connectors will
jumper pins 2 and 3 for AC output and pins 1 and 2 for DC output.
NOTE: The Main Circuit Board is located on the right side of the Control.
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