KCMR230: Phasing Check
Check the phasing of the fan relay electrical circuit
as follows:
Note: 3 phase machines must have the same "leg"
or line connected to L3 on BOTH ice machine’s
contactors and if there is "Wild Leg" current, it
must be connected to L3 on BOTH ice machines.
A. Before initial start up: Compare the illustration
of the KCMR230 terminal strip to the connections
at the KCMR230.
••
Terminals #1 and #3 must be connected to the
same side of the line (such as L1).
••
Terminals #2 and #4 must be connected to the
same side of the line (such as L2).
B. After initial start up, test with a volt meter
(compressors must be operating for this test).
1. Switch on ice maker #1, then ice maker #2.
2. Test with a volt meter between terminals #2 and
#4, then between terminals #1 and #3.
Compare the data to that in this table.
If there is full voltage where there should be No
voltage:
••
Switch off ice maker #2 (compressor switch
also), and then switch off ice maker #1.
••
Reverse the connections at the KCMR230
terminal strip marked ice maker #1 (put the wire
that was on 1 on 2 and the wire that was on 2
on 1).
Do all wiring with the electrical power
disconnected to BOTH ice makers at the
source.
Test Terminals
Correct Voltage Readings
1 - 2
Full Voltage (208-230)
1 - 3
No Voltage
2 - 3
Full Voltage
2 - 4
No Voltage
3 - 4
Full Voltage
1 - 4
Full Voltage
CME650R
October 1994
Page 9
