Emerson PS2-Y7A User Manual
PRESSURE CONTROLS |
PS2 SERIES |
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PS2 SERIES PRESSURE SWITCH
DUAL CONTROL
PS2 Dual Pressure Controls are designed for use on high and low pressure applications in refrigeration, air conditioning, and heat pump systems. This control reacts to changes in either low or high side pressures, providing single-device control of the compressor or other electrical device.
PS2-Y7A
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.
•Automatic and manual reset models available
SPECIFICATIONS |
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Electrical Ratings.................................. |
SPDT Switch Rated for 12 FLA and 72 LRA at 240 VAC |
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and 16 FLA and 96 LRA at 120 VAC |
UL/CUL File Number.................................................................................................. |
E85974 |
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CE per (LVD) Low Voltage Directive |
MODEL NUMBER NOMENCLATURE - Example: PS2-Y7A
SERIES |
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FUNCTION |
PRESSURE RANGE |
CONNECTION TYPE |
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PS2 |
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-Y |
7 |
A |
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X = Auto Reset |
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Internal range and differential adjustments |
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A = 1/4"" SAE Male Flare |
Dual Adjustable |
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7 = Left Side: 9"Hg to 102 psig (-0.3 to 7 bar) |
K = 1 m (3 ft.) Cap Tube, 1/4"" Flare Nut |
Y = Low Side: Auto Reset |
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External range and differential |
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Pressure Switch |
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Right Side: 87 to 464 psig (6 to 32 bar) |
L = 1 m (3 ft.) Cap Tube, 1/4"" ODM Solder Connection |
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High Side: Convertible Reset |
adjustments |
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PS2 PRESSURE SWITCH DUAL CONTROL
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LOW PRESSURE SIDE |
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HIGH PRESSURE SIDE |
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PRESSURE |
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DIFFERENTIAL |
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FACTORY |
PRESSURE |
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FACTORY |
CONNECTION |
MODEL |
ITEM |
FUNCTION |
RANGE |
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RANGE |
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SETTING |
RANGE |
DIFFERENTIAL |
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SETTING |
TYPE |
NUMBER |
NUMBER |
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Auto Reset |
4.4 to 102 psig, |
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15 to 73 psig |
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49/65 psig |
87 to 464 psig |
Fixed |
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290 psig |
1/4" SAE Male Flare |
PS2-Y7A |
099008 |
0.3 to 7 bar |
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Manual Reset |
4.4 to 102 psig, |
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15 to 73 psig |
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49/65 psig |
87 to 464 psig |
Fixed |
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290 psig |
1 m (3 ft.) Cap Tube |
PS2-Y7K |
099009 |
0.3 to 7 bar |
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w/1/4" Flare Nut |
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R-4899_146_12.16.20
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