Brochure

Emerson Climate Technologies
268
Temperature Pressure Controls
PS1 Single Pressure Controls are designed for use on high and low
pressure applications in refrigeration, airconditioning and heat
pump systems, providing single-device control of the compressor or
other electrical device.
Features
• Adjustablepressuresanddifferentials
• Narrowadjustabledifferentialdependingonmodel
• Rangeanddifferentialpointerinunitsbarandpsig
• Rangeanddifferentialindividuallylockablebytab
• HighratedSPDTcontactsforallversions
• Captiveterminalandcoverscrews
• Manualtoggleforsystemcheckoutandoverride
Options
• Differentpressureconnections
• Automaticandmanualresetversions
• Factorysettocustomerspecication
Nomenclature
Type code
PS1
-
Product Name
PS1 = Adjustable Single Pressostat
Pressure range
3 = -0.3 to 7 bar
4 = 2 to 20 bar
5 = 6 to 31 bar
Function
A = Pressure control, automatic
B = Pressure cut out, external manual reset EN 12263
R = Pressure control, external manual reset
W = Pressure limiter, automatic, DIN/EN 12263
Pressure connector
A = 7/16” -20 UNF male (1/4” SAE male
flare)
K = 1m cap tube and schrader valve
opener, 7/16” -20UNF flare nut
U = 6mm ODF solder, 80mm lenght
R = 1/4” male, brass (1/4” BSPP Fitting)
Specifications
• SPDTswitchratedfor12FLAand72LRAat240VAC
 and16FLAand96LRAat120VAC
• Agencyapprovalsinclude:UL/CULlenumberE85974
 CEper(LVD)lowvoltagedirective
PS1 Series Single Controls