Installation Instructions

MTU Instruction
for STAR Submetering MTUs with Pulse Adapters
Purpose & Scope
This instruction provides procedures for installing and programmin STAR MTUs equipped
with voltage or temperature sensing pulse adapters including the following: 501-7786P,
501-7786T, 501-7786-PP, 501-7786PR, 501-7786PT, 501-7786PT2. Please also refer to
Publication 471-2000, General Installation and Wiring Guidelines for general information
covering the wiring and mounting of STAR MTUs.
Parts Required
Item Part Number Quantity
Submetering MTU with temperature sensing pulse adapter. 501-7786T 1
(As required)
Submetering MTU with voltage sensing pulse adapter. 501-7786P 1
(As required)
Dual-port Submetering MTU with voltage sensing pulse
adapters.
501-7786PP 1
(As required)
Dual-port Submetering MTU with a voltage sensing pulse
adapter and a reed switch input.
501-7786-PR 1
(As required)
Dual-port Submetering MTU with voltage and temperature
sensing pulse adapters.
501-7786-PT 1
(As required)
Thermocouple, Type E, 20 gauge 071-0850
1 per
temperature
sensing port.
Wire Splice, 3M Scotchlok 314 043-1914
2 per
temperature
sensing port.
Cable Tie, 5.6”, Black, UV 067-0007
3 per
temperature
sensing port.
Pressure Sensitive Hold-downs 067-0051
2 per
temperature
sensing port.
Drywall screws, #6 x 2” Phillips, coarse (for indoor use) Source locally
2 per MTU
Plastic masonry anchors #6 – 12 x 1”, ¼” diameter Source locally
2 per MTU
471-2008 - 2/22/2008
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