Service manual

06/2010
continuing. Over the next 8 minutes the unit will be increasing the gas flow to calibrate the
valve. The unit will run the test by itself and only requires monitoring for safety. When the test is
ended the red LED will flash.
13. Turn power OFF and water can be turned off.
14. Replace the jumper on the board.
15. Turn on power.
16. Check the unit for normal operation (refer to SM500-16 ‘Testing the RV500’). If all operation
appears normal the procedure is complete. If the unit does not control or gas flow varies
excessively repeat the procedure.
Kit Parts List:
None.
Figures:
Figure-4 View of Electronic Drawer
Model: RV500-F-L / RV501-F-L
SM500-16 Testing the RV500
Other service documents required:
Section 4.5 T-in /T-mid/T-out Thermister and T-set Readout
SM500-15 Automatic Calibration (AutoCal)
Tools Required:
Small flat blade screwdriver
Basin wrench or crow’s foot
9/16 open end wrench
3/16 hex key
regular flat blade screwdriver
Voltage Supply = 12  0.5 vdc
Gas supply pressure (to regulator) = 11.0 14.0 wci
Water supply pressure = 25 - 60 psig
Instrumentation:
T-mid Circuit board thermister reading (yellow test point)
T-out Circuit board thermister reading (orange test point)
T-in Inboard blue wire in 6 pin connector
T-set Circuit board thermister reading (blue test point)
Water flow Bucket or bench water meter (optional)
Manifold Pressure 0 - 10 wci (optional)
Regulator Pressure 0 - 15 wci (optional)
Modulating Valve 0 - 12 vdc (optional)
Test Data :
1. Turn power ON and verify that the green LED flashes.