Brochure

Emerson Climate Technologies
270
Temperature Pressure Controls
PS2DualPressureControlsaredesignedforuseonhighandlow
pressure applications in refrigeration, airconditioning, and heat
pump systems. This control react to changes in either
low or high side pressures, 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
• Factoryinstalledwirebridgeforreducedinstallationeffort
• Highsideconvertiblefrommanualtoautoreset.
Options
• Differentpressureconnections
• Automaticandmanualresetversions
• Factorysettocustomerspecication
Nomenclature
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
Type code
PS2
-
Product Name
PS2 = Adjustable Dual Pressostat
Pressure range
7 = -0.3 to 7 bar 6 to 31 bar
8 = 6 to 31 bar 6 to 31 bar
Function
A = Both sides, automatic pressure controls
G = Left side: cut out, external manual reset EN 12263
Right side: cut out, external manual reset EN 12263
L = Left side: automatic pressure control
Right side: external manual reset
M = Left side: automatic pressure control
Right side: convertible R to A
R = Both sides: external manual reset
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
R = 1/4” ODF solder, 80mm length
PS2 Series Dual Control