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Installation
6.3
Probe Cap
Caution!
Do not install probe cap in fuel tank. Never install Dometic probe cap with float switches
into a tank that contains anything other than fresh water, gray water or waste water .
1 . Loosen compression nuts on adjustable probes and install probe cap into tank . Following num-
bers printed on top of probe cap, slide the "1" probe (fig .
touches the bottom of the tank . Tighten "1" compression nut and mark the probe tube at the top
of the nut . Do not cut the probe tube at this mark . Loosen the compression nut, slide the probe
up, and carefully cut the "1" probe tube 42 mm (1 .625 inches) below the mark without damaging
the wires inside the tube . Pull the wires through the black wire cover and push the probe down
into the compression nut until the black wire cover touches the compression nut . The recessed
shoulder of the float, or the letters "NO", should be facing down (B 5) .
2 . Remove probe cap from tank and adjust the "2" probe (fig .
for freshwater tank . Tighten the compression nut and cut the probe tube off 10 mm (0 .375 inch)
above the compression nut without damaging the wires . Slip the black wire cover onto the top of
the tube . The recessed shoulder of the float, or the letters "NO", should be facing down (B 7) .
3 . Route 18-gauge stranded copper wires from monitor panel and DC ground source to the probe
cap . Use quick-disconnect terminals on float switch wires to prevent twisting wires when remov-
ing the cap . With cap removed from tank, connect the wires according to the wiring diagram
(fig .
4
, page 3), turn on electrical power to system, and test the floats by moving them up and
down and monitoring the DTMF04 panel . Disconnect the wires and install the probe cap and
O-ring into the tank . Reconnect the wires .
6.4
Key to DTMF04 system wiring
Ref.
Description
A
DTMF04 indicator panel
B
Freshwater tank
C
12 V DC
D
24 V DC
E
V DC ground
F
1-amp circuit breaker or fuse
G
Red
H
Blue
I
Black
J
Green
10
(fig .
B, page 2)
3
Dometic Freshwater Tank Monitor
B 4, page 3) down until the float
3
3
(fig .
4
, page 3)
Ref.
K
L
M
N
O
P
Q
R
Notes:
1 . Dashed line indicates 14 gauge or larger stranded
copper wire is required .
2 . Other wire can be 18 gauge stranded copper wire
or larger .
B 6, page 3) for one-half full level
Description
Yellow
Orange
Full level probe
Mid level probe
Low/Empty level probe
12 or 24 V DC
Water pump circuit breaker or fuse
+ V DC to freshwater pump
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