Dometic DTM04 Installation And Operational Manual page 7

DTM12 Tank Monitor System for Blackwater and Graywater Tanks,
and Freshwater Tank
USE 18GA. OR LARGER STRANDED COPPER WIRE.
BLACKWATER AND GRAYWATER TANK NOTE: RECESSED
SHOULDER, THE WHITE BAND, OR THE LETTERS "N-O" OF THE
"EMPTY" FLOAT ARE DOWNWARD.
FRESHWATER TANK NOTE: RECESSED SHOULDER, THE WHITE
BAND, OR THE LETTERS "N-O" OF THE "EMPTY" AND "MID"
FLOAT ARE DOWNWARD.
Shut-down Relay with DTM04 Tank Monitor System
USE 12 OR 14 GAUGE STRANDED COPPER WIRE ON PINS 10
AND 11.
WITH RELAY INSTALLED AND DTM04 MODEL WIRED FOR A
BLACKWATER TANK, THE "FULL" FLOAT SWITCH WILL SHUT
OFF ELECTRICAL POWER TO THE TOILET SYSTEM.
Consult toilet system specifications for proper fusing or
circuit breaker size. Do not exceed 30 amps.
DTM04 TANK
MONITOR
with
shut-down relay
DTM12 TANK
MONITOR
7