Installation Instruction

2
Elster American Gas Meter MTU Installation Instructions
Purpose & Scope
These instructions provide a procedure for installing a STAR direct-mount MTU on the following
Elster/American Gas Meters: AC-175, AL-175, AT-175, AC-250, AL-250, AM-250, AR-250,
AT-210/250, AT-350, AL-425, AC-630. These installation instructions cover the Aclara Catalog
numbers 3531-010-RBS2 and 3531-010-RBS2W for these gas meters.
Parts Required
N
OTE
The mounting kit contains the exact quantity of hardware required for a single installation. Keep
extra hardware on hand.
N
OTE
No repair or maintenance of MTU is required. Defective MTU will be replaced.
N
OTE
MTU may be wiped with damp cloth to prevent electrostatic charge hazard.
# Item General Description Qty
1A MTU, GAS, OD2, DIR, AMRES,
STDRNG
MTU Assembly 1
1B MTU, GAS, OD2, DIR, AMRES,
EXTRNG
MTU Assembly 1
2 1/4-20 x 1.5" COMBO FIL HD, DP Screws 4
3 #8 x 3/8" CMB TRI-LOB, Z-SEAL Screws 2
4 #10 x 1/2" CMB TRI-LOB, Z-SEAL Screws 4
5 SNAP SEAL, GAS MTU, RESDNTL Tamper Plugs 4