Installation Instructions

MTU Instruction
for American Meter Company Gas Meters
Step 5 - If the meter has a round plastic
pin, align the register to the American 225
Meter Adapter. The pin on the register
must be in the hole in the coupler, as
shown. Make sure the index foot rotates
freely.
Step 6 - Place the wire into the channel
to the right.
CAUTION!
Do not over tighten screws.
Excessive torque may
damage the MTU enclosure.
Power tools are not
recommended for use on
step 7.
Step 7 - Fasten the register to the
adapter with the two #8 x 3/8” screws
provided. Hand tighten to a torque not
to exceed 3-5 inch-pounds.
Step 8 - Rotate the adapter arm 180
degrees from the position of the meter
indexer. An example is shown.
Step 9 - Mount register with adapter and
the original plastic cover to the meter.
Step 10 - Attach the register and adapter
assembly to the meter with the four ¼-20
x 2 fillister head screws. Tighten the
screws to 12 to 15 in-lb. On a standard
drill driver with 0 to 24 torque settings,
this is typically the #10 setting.
Step 11 - Replace any anti-tamper,
safety, or security hardware onto the
cover as required.
Step 12 - Mount the MTU, following the
wiring and mounting guidelines outlined in
Publication 471-2000, General
Installation and Wiring Guidelines. If
necessary, the MTU cable can be
extended up to 500 feet.
Note: If desired, you can mount the MTU
on the supply line using the bar-mounting
procedure below.
Step 13 – Once installation is complete,
program the MTU using the STAR
Programmer Software and your MTU
Programmer.
Bar-Mounting the MTU
Step 1 - Thread the tie-wraps into the
MTU spacer as shown here.
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