13
£
EXTERNAL METER CONNECTIONS
The test jacks are located on the amplifier card. If external access is desired for a panel meter the fig-
ure shown below will assist you in locating the position to drill through the front cover. The hole
sizes should be large enough to accommodate the body of the meter probes. The test jacks accept
meter probes up to .080” of 2mm in diameter.
FIGURE 2.
INSTALLATION TESTING
CAUTION: Before testing the control operation on the boiler, close the manual main fuel
supply. Failure to do this may cause injury or property damage.
1.
Close the manual main shut-off fuel valve.
2.
Recheck all limit circuit wiring for proper operation and correct connection.
3.
Confirm that the automatic main fuel valves are wired to terminal 7.
4.
Power the control and electrically check the proper sequence of operation according to the oper-
ation section in this bulletin.
5.
After assuring that all interlocks and valves are properly wired and that the sequence of opera-
tion is correct, open the manual main shut-off valve and proceed cautiously through the boiler
light off process. Check all safety interlocks for proper shut down of the boiler.
To measure the Series D30 control’s flame signal strength, use a 1,000 ohm/volt (or greater) DC volt-
meter or a Digital meter with input impedance of 500K ohms or greater.
Set the meter scale to read
a normal flame signal of 18-25 volts DC.
Note: The Fireye 45UV5-1009 is a repetitive self-check scanner that contains a highly reliable shut-
ter that closes every 4 seconds to initiate a system check. When the shutter closes, the test jack volt-
age should go down to approximately zero, and then back to the normal reading in about 2 seconds.
To assure sufficient flame signal margin to hold in the flame relay during random momentary down-
ward fluctuations of flame signal, it is recommended that a signal close to normal be obtained.
Note: The leads from the test meter plug into the red and black test jacks on the amplifier (red +
black — ).
Normal Pilot Flame Test
1.
CAUTION: Before making a pilot flame test, manually shut off the fuel supply to the
main burner.
2.
Place the
check-run
switch on the programmer in the
check
position. A small tool such as a
screwdriver is required.
3.
Turn power on and initiate a normal start-up.
RECOMMED
5/16” TO 3/8” HOLES
TO ACCOMODATE
METER PROBES
1.625
+
+
.625
4.3125
ADDING HOLES IN COVER TO ACCESS TEST JACKS
Summary of Contents for D30 Series
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