SECTION IV
HONEYWELL R4140 AND R4150, 20 TERMINAL SUBBASE
120 V ONLY
NOTE: This cross reference does not include conversions for proprietary controls such as
Cleaver Brooks, Vapor or Peabody Gordon Piatt models.
Preignition Interlock Models:
R4140G1007
R4140G1015
R4140G1106
R4140G1130
R4140G1148
R4140L All Models
R4140M1145
R4140M1152
R4140M1160
R4140M1 178
R4150G1186
R4150L All Models
All others have start interlocks.
If existing R4150 has 13- or 15-terminal subbase, the subbase must be replaced with a 20
terminal Q520A. See Section V.
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