WIRING AND POWER UP
The following wiring components are provided with the meter:
1 ea. Interface Box containing AC voltage
transformer and board
2 ea. AC current transformers
1 ea. DC current shunt
2 ea. Tie Wraps
1) Power Wiring (for operating the meter)
The VAAFH is powered from a source of 9.5 to 33.0 VDC.
Attach power wiring per diagram, see FIG. 2 & 3. Fuse
at source
2) Monitor Wiring
The meter receives voltage and amperage signals from
the provided wiring interface box and current transformers.
CAUTION: DO NOT APPLY RAW AC VOLTAGE OR
CURRENT DIRECTLY TO THE METER, THIS WILL
DESTROY THE METER. Attach the signal data wiring to the
meter as shown in FIG. 2
3) AC Current Transformer Wiring
Two C.T.’s are provided, each with 40” length two conductor
(26 AWG) cable. Wire colors are black and yellow. The yellow
and black wires can be connected to the Interface box PCB in
either direction, there is no polarity for C.T. connection. Please
disregard arrow on top of C.T., there is no current direction for
the VAAFh installation. For new installations, we recommend
passing the Line side cable of the current carrying source
through the center opening in the C.T. (Dia.: .630”). For pre-
wired installations, the C.T. donut hole can be opened to allow
the C.T. to clamp over the cable. To open C.T. use a small
slotted screwdriver; pry up both ends, lift up the non-secured
end, release top from plastic latches, clamp over cable and
push the two C.T. halves back together and snap the plastic
latches shut
The VAAFH is designed to operate with the provided interface
box. Locate the interface close enough for the VAAFH cable to
reach (2’ to 2.5’). The box also needs to be located a maximum
of 3’ from L1 & L2 main feeds for the current transformer leads
to reach the Interface box.
4) DC Current Shunt Wiring
A DC current shunt is provided with 16” length three conductor
(20 AWG) cable. Wire colors used are black and red. One end
will have factory terminated QD’s which can be connected to
the Interface box, see wiring diagram. The opposite end must
be terminated with ring-lugs, provided. Please refer to the
wiring diagram for wire color termination and chassis grond
reference. If the DC shunt wiring does not match the wiring
diagram the display DC Amps will show a positive sign instead
of a negative. The wiring is configured to display a negative
sign when the battery is supply power to a load (battery is
power source and being drained).
5) Alarm Wiring (Optional)
This terminal produces a +5 VDC signal (100mA max.)
with reference to DC when an alarm condition is detected.
Maintenance alarm does not 5 VDC alarm output. This
+5 VDC signal is compatible with Newmar model DIR
(optional), solid state relay which can carry an AC or DC circuit
up to 10 amps.
6) Powering Up
Once the meter wiring/installation is complete, double check
DC power polarity and then connect 12, 24, or 32 VDC power
to meter. It is normal for meter to take 20-30 seconds to start
up before the display readings settle. Note: Display refreshes
readings every 2 seconds.
MENU NAVIGATION AND CALIBRATION
A) Main Page
When the instrument is powered up it displays the “Main” page.
The “Main” page displays: AC Volts, Frequency (HERTZ), AC
AMPS #1, and AC AMPS #2. Values are displayed in GREEN
if within acceptable alarm set limits or RED if out of limits
condition exists.
From MAIN PAGE display:
• Pressing the
p
key for ½ second (longer than a quick press
but shorter than 2 seconds) will cause a white ALARM bell
symbol to be displayed and enable the alarms.
• Pressing the
q
key for ½ second (longer than a quick press
but shorter than 2 seconds) will disable the alarms and remove
the white alarm bell symbol.
• Pressing the
+
key for ½ second (longer than a quick press
120V Screen
240V Screen
Current Transformer: Closed and Open
Secured End
Plastic Latches
170 Cherry Avenue
West Sayville, NY 11796
www.kussmaul.com
Ph: 800-346-0857
Fax: 631-567-5826
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