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low ambient control

Tomorrow I will be installing two Johnson control low ambient kits (fan control) for ar410a system...what is the best setting for it has a cutout and a subtractive differential....
ASM Mechanical Company
Located in Staten Island NY
Servicing all 5 boroughs of NYC.


  • TechmanTechman Member Posts: 2,144
    lo ambient

    as with most stuff, it depends! But a good starting point is, cutout = to 95* condensing temp or about 290psig. cutin is also ,it depends. Anywhere from 335-400psig.
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