Honeywell BC7000L1000 User Manual
Page 13
SECTION Ill
HONEYWELL R4126, R4127, R4181 CONTROLS
120 V ONLY
DIRECTIONS:
1.
2.
3.
4.
5.
6.
7.
8.
Disconnect all power to programmer.
Remove old programmer from subbase (trade-in to Honeywell Authorized Flame Safeguard
Distributor).
Mark all wires on subbase; i.e., wires connected to terminal “D” should be marked “D.”
Disconnect wires as they are marked.
Remove old subbase.
Mount Q520A subbase.
Connect wires to subbase per attached cross reference. Pay close attention to footnotes. For
example: To convert an R4126A1172 to a BC7000, the wire marked “F2” would connect to
terminal #3 on the Q520. The wire marked “3” would connect to Q520 terminal #14.
The symbol “
” designates a footnote. Study these footnotes carefully.
Plug in the BC7000. Make sure you select the proper amplifier, detector and program module
for the application.
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