TYPICAL OPERATION
INCINERATION cycle is started by the MS SWITCH
which is actuated by the flushing action. At the NO
position power is supplied the relay coil, thereby closing
the relay switches which continue to supply power after
MS returns to NC position. As relay switches are now
closed, reset timer starts, cycle begins.
After urine is evaporated plus 7 to 10 minutes, TS
thermostat opens, cutting off heater. However, as reset
timer is set for 60 minutes approximately, heater will
again come on in 6 or 7 minutes, after TS thermostat
has closed. At the end of the timing cycle, timer switch
opens, relay opens, and heating ceases. Blower stays
on, because the ITS thermostat is now closed, until
incinerator chamber cools to 140F approximately.
If the unit is flushed while in cycle, the timer resets itself
to provide a complete cycle from that instant.
Safety thermostat opens only upon excessive heat build-
up within toilet housing.
DEFINITION OF SYMBOLS
MS - Start switch, NC.
PR7AX - Holding relay, DPST
L1, L2, TO, SW - Reset Timer Terminals
TS- Control Thermostat, NC
ITS - Blower Thermostat, NO
STS - Safety Thermostat, NC
WIRING INSTRUCTIONS FOR
TWO WIRE
1.
Connect BLACK & WHITE leads to power. See
name plate on rear panel for voltage.
2.
Unit MUST be grounded through metal conduit and
ground wire.
3.
White is considered neutral.
NOTE
This wiring diagram applies to units requiring 120 VAC,
50-60 Hz as well as those requiring 240 VAC 50-60 Hz.
WARNING
While wiring for each of the two units noted above is
identical. DO NOT operate a specific unit on any voltage
other than that indicated on the unit. owing to
differences in circuit components.
WHITE is considered
NEUTRAL FOR 120 VAC only.
WIRING INSTRUCTIONS FOR
THREE WIRE
1.
Connect RED & BLACK leads to 208 or 240 vac.
WHITE to neutral. See name plate on rear panel for
voltage.
2.
Unit MUST be grounded through metal conduit and
ground wire.
NOTE
This wiring diagram applies to units requiring
120/208 VAC. 50-60 Hz supply as well as those
requiring 120/240 VAC, 50-60 Hz supply.
WARNING
While wiring for each of the two units noted above Is
identical. DO NOT operate a specific unit on any voltage
other than that indicated on the unit. owing to
differences in circuit components.
WHITE is considered NEUTRAL
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