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PS3
Alco Controls
Pressure Switch
D A T A S H E E T
The ALCO PS3 is a Pressure Switch with fixed switch-point
settings.
Features
Maximum Operating Pressure up to 43 bar
Test Pressure up to 48 bar
Standard factory settings from stock in small volumes
High and low pressure switches
High temperature version with snubber for direct
compressor mounting (Range 6)
Direct mounting reduces the number of joints and thus
avoiding potential leakage
Precise setting and repeatab
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PS3 Alco Controls Pressure Switch D A T A S H E E T Technical data Pressure sensing element Type of Max. medium Construction Material Snubber Pressure TÜV Function Possible diaphragm temperature Ranges approval Code * Pressure Conn. Standard Single diaphragm Bronze no 1-5 No A,R A,K,L,S,U,X + 70° C temperature Double diaphragm Bronze no 1-5 Yes B,S,W A,K,L,S,U,X High + 150° C Bellows Stainless yes 6 Yes B,S,W S,U,X temperature steel 6 no A,R S,U,X *) see page 7 for more details
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PS3 Alco Controls Pressure Switch D A T A S H E E T Selection 1. Preferred types Type PCN Fixed setting Reset Max. temperature Leakage Pressure test connection (bar) pressure pressure Cut-out Cut-in ambient connection (bar) High Pressure Controls PS3-A6S 0 715 603 16,0 11,0 7/16"-20 UNF PS3-A6S 0 715 604 19,0 15,0 Auto + 70°C + 150°C 48 female thread with PS3-A6S 0 715 600 26,5 22,5 Schrader opener Low Pressure Controls / Pressure Limiter for low pressure protection
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PS3 Alco Controls Pressure Switch D A T A S H E E T Range 1 / A 6 5 4 3 2 1 0 -1 01 234 56 789 10 11 Range 3 / C 16 14 12 10 8 6 4 2 0 01 23 45 67 89 10 11 PS3__35003_EN_R08.doc 4 / 10 09.08.2011 Pressure (bar) Pressure (bar)
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PS3 Alco Controls Pressure Switch D A T A S H E E T Range 4 / D 30 25 20 15 10 5 0 01 2 34 56 78 9 10 11 Range 5 / E 30 25 20 15 10 5 0 0 1 23 45 67 89 10 11 PS3__35003_EN_R08.doc 5 / 10 09.08.2011 Pressure (bar) Pressure (bar)
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PS3 Alco Controls Pressure Switch D A T A S H E E T Range 6 / F 45 40 35 30 25 20 15 10 5 0 0 12 345 67 89 10 11 Selection guide Condenser PS3-A6S Service Valve PS3-W6S Fan Motor Receiver PS3-B6S* Service Valve PS3-W1S* PS3-W1S PS3-W1U Service Valve Evaporator *) Requires additional adapter such as: 1/8 or 1/4 NPT by 7/16-20 UNF flare male (see Other Accessories on page 8) PS3__35003_EN_R08.doc 6 / 10 09.08.2011 Pressure (bar)
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PS3 Alco Controls Pressure Switch D A T A S H E E T Selection Sheet For selection and sample request please fill-in complete Note: not each combination is possible Type code PS3 - - cut-in / cut-out Product Name Pressure Connectors PS3: Compact fixed setting pressostat A: 7/16”-20 UNF male (Range 1-5), with console PSC: Customer special version of PS3 G: G¼" female brass K: 1 m cap. tube w. flare nut 7/16”-20UNF (Range 1-5), with console L: ¼”-ODM solder with 1 m cap. tube (Ra
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PS3 Alco Controls Pressure Switch D A T A S H E E T Accessories Cables with Plug for PS3, gasket molded into plug (IP 65) Type PCN No of leads Diameter Temperature Range Cable length of leads °C mtr. PS3-N15 804 580 1.5 PS3-N30 804 581 3 0.75 mm2 -25/+80 3.0 PS3-N60 804 582 6.0 PS3-L15 804 583 1.5 PS3-L30 804 584 3 0.75 mm2 -50/+80 3.0 PS3-L60 804 585 6.0 PS3-215 804 587 2 0.75 mm2 -25/+80 1.5 PS3-415 804 588 1.5 The following pictures show the different types
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PS3 Alco Controls Pressure Switch D A T A S H E E T Other Accessories 7/16”-20UNF 7/16”-20UNF 85 Ø4.2 12 17.5 17.5 12 13 13 5 33 SW 14 30 23.5 SW 14 10 13 23.5 10 1/4”NPT 1/8”NPT Ø4.8 63.5 Angle bracket (H140-046.001) Adapter ¼”NPT-male -7/16”-20UNF- Adapter 1/8”NPT-male-7/16”-20UNF- for two PS3 male (for compressor direct mounting) male (for compressor direct mounting) PCN: 803 772 PCN: 800 315 PCN: 800 316 Dimensions Dimensions Range 1…5, A…E, J…N, S…W (in mm) Free sta
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PS3 Alco Controls Pressure Switch D A T A S H E E T Dimensions Range 6, F, O, X (in mm) 28 28 28 41 PS3-Nxx 80 80 20 Ø 6 Ø ¼” 39 48 Connection S Connection U Connection X 7/16-20 UNF female 80mm solder connection 80mm solder connection with Schrader valve opener Ø 6mm Ø ¼” EMERSON is not to be held responsible for erroneous literature use by persons having the appropriate technical knowledge and skills, regarding capacities, dimensions, applications, etc. stated herein. a
