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Armstrong HVAC & Refrigeration Controls & Circuit Boards

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42 results

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  • Brand: Armstrong- Selected

    • Armstrong International 800 B394B 1/2" Steam Trap, 20 Psi N.O.S - Image 1 of 3
    • Armstrong International 800 B394B 1/2" Steam Trap, 20 Psi N.O.S - Image 2 of 3
    • Armstrong International 800 B394B 1/2" Steam Trap, 20 Psi N.O.S - Image 3 of 3

    Armstrong International 800 B394B 1/2" Steam Trap, 20 Psi N.O.S

    Brand New · Armstrong
    S$ 247.38
    S$ 54.17 shipping
    S⁣N⁣p⁣0⁣o⁣n⁣s⁣ ⁣8⁣Z⁣ ⁣Q⁣o⁣P⁣ ⁣r⁣H⁣е⁣d⁣4⁣ ⁣⁣⁣8⁣F⁣⁣ ⁣9⁣
    • Armstrong International 175Ai2 Steam Trap,175 Psi,377F,5-1/2 In. L - Image 1 of 4
    • Armstrong International 175Ai2 Steam Trap,175 Psi,377F,5-1/2 In. L - Image 2 of 4
    • Armstrong International 175Ai2 Steam Trap,175 Psi,377F,5-1/2 In. L - Image 3 of 4
    • Armstrong International 175Ai2 Steam Trap,175 Psi,377F,5-1/2 In. L - Image 4 of 4

    Armstrong International 175Ai2 Steam Trap,175 Psi,377F,5-1/2 In. L

    Brand New · Armstrong
    S$ 434.46
    or Best Offer
    S$ 147.94 shipping
    K⁣S⁣J⁣p⁣ ⁣0⁣8⁣ ⁣o⁣2⁣n⁣9⁣ ⁣C⁣ѕ⁣o⁣r⁣6⁣e⁣d⁣⁣⁣⁣⁣ ⁣4⁣⁣G⁣
  • Armstrong International - 110123-121 - Aquastat - Image 1 of 1

    Armstrong International - 110123-121 - Aquastat

    Brand New · Armstrong
    S$ 56.53
    S$ 63.22 shipping
    9⁣4⁣ ⁣S⁣6⁣p⁣M⁣о⁣ ⁣T⁣n⁣9⁣ ⁣Q⁣K⁣ ⁣s⁣Q⁣o⁣r⁣e⁣W⁣ ⁣A⁣⁣d⁣⁣ ⁣
    • Armstrong CD33-100-600 1" FNPT Stainless Steel Steam Trap 3-15/16" End to End L - Image 1 of 3
    • Armstrong CD33-100-600 1" FNPT Stainless Steel Steam Trap 3-15/16" End to End L - Image 2 of 3
    • Armstrong CD33-100-600 1" FNPT Stainless Steel Steam Trap 3-15/16" End to End L - Image 3 of 3

    Armstrong CD33-100-600 1" FNPT Stainless Steel Steam Trap 3-15/16" End to End L

    Brand New · Armstrong
    S$ 529.84
    or Best Offer
    S$ 81.86 shipping
    3⁣S⁣p⁣H⁣o⁣n⁣ ⁣s⁣o⁣r⁣J⁣0⁣е⁣ ⁣d⁣G⁣⁣⁣⁣⁣⁣⁣1⁣ ⁣T⁣7⁣ ⁣Q⁣
  • NEW Armstrong International 110123-121 3/4 Aquastat FREE SHIPPING - Image 1 of 3

    NEW Armstrong International 110123-121 3/4 Aquastat FREE SHIPPING

    Brand New · Armstrong
    S$ 38.58
    Was: S$ 49.46was - S$ 49.46
    or Best Offer
    S$ 55.63 shipping
    5⁣⁣⁣R⁣⁣ ⁣⁣5⁣⁣D⁣⁣ ⁣G⁣M⁣ ⁣D⁣6⁣⁣ ⁣⁣⁣I⁣9⁣⁣⁣ ⁣⁣F⁣
  • R40403-003 Armstrong Lennox Furnace Control Circuit Board New - Image 1 of 3

    R40403-003 Armstrong Lennox Furnace Control Circuit Board New

    Brand New · Armstrong
    S$ 197.89
    S$ 35.19 shipping
    X⁣⁣⁣⁣3⁣ ⁣⁣Z⁣F⁣ ⁣⁣L⁣⁣⁣⁣O⁣⁣ ⁣D⁣S⁣ ⁣Z⁣G⁣ ⁣⁣⁣⁣ ⁣
  • NOS ARMSTRONG 42936-001 THERMODISC 37TJ31 35039 High Temp Switch L250-110F - Image 1 of 4

    NOS ARMSTRONG 42936-001 THERMODISC 37TJ31 35039 High Temp Switch L250-110F

    Brand New · Armstrong
    S$ 12.72
    S$ 35.59 shipping
    ⁣C⁣⁣L⁣⁣ ⁣E⁣⁣⁣⁣Y⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣D⁣⁣⁣P⁣⁣⁣⁣⁣
  • Armstrong Air R36610B001 TRANSFORMER FURNACE HVAC - Image 1 of 2

    Armstrong Air R36610B001 TRANSFORMER FURNACE HVAC

    Brand New · Armstrong
    S$ 42.34
    or Best Offer
    S$ 30.59 shipping
    8⁣⁣8⁣⁣ ⁣S⁣I⁣⁣ ⁣9⁣⁣U⁣ ⁣⁣T⁣⁣K⁣⁣ ⁣4⁣⁣L⁣⁣ ⁣⁣3⁣⁣⁣
  • Armstrong Air R40154B003 Control Limit Yellow - Image 1 of 4

    Armstrong Air R40154B003 Control Limit Yellow

    Brand New · Armstrong
    S$ 70.68
    or Best Offer
    S$ 30.52 shipping
    4⁣K⁣ ⁣⁣2⁣⁣L⁣⁣⁣⁣ ⁣P⁣Y⁣ ⁣Q⁣⁣G⁣ ⁣A⁣G⁣ ⁣T⁣⁣⁣⁣⁣ ⁣⁣
  • Armstrong Air R39029B002 Control-Blower Center #1010-83-6111A HSCI - Image 1 of 4

    Armstrong Air R39029B002 Control-Blower Center #1010-83-6111A HSCI

    Brand New · Armstrong
    S$ 46.48
    S$ 41.89 shipping
    M⁣⁣C⁣ ⁣R⁣⁣⁣⁣⁣⁣6⁣ ⁣⁣⁣⁣⁣J⁣T⁣⁣⁣ ⁣6⁣⁣E⁣ ⁣T⁣3⁣ ⁣
  • New Lennox Ducane 98G4501 98G45 Disc Limit Control Switch L165-40F - Image 1 of 4

    New Lennox Ducane 98G4501 98G45 Disc Limit Control Switch L165-40F

    Brand New · Armstrong
    S$ 169.63
    S$ 33.43 shipping
    1⁣⁣⁣⁣⁣M⁣⁣ ⁣1⁣0⁣⁣⁣ ⁣⁣⁣7⁣Q⁣ ⁣4⁣⁣⁣N⁣⁣⁣⁣⁣ ⁣B⁣
  • NOS ARMSTRONG 42936-002 THERMODISC 37TJ31 35052 High Temp Switch L250-110F - Image 1 of 4

    NOS ARMSTRONG 42936-002 THERMODISC 37TJ31 35052 High Temp Switch L250-110F

    Brand New · Armstrong
    S$ 12.72
    S$ 35.59 shipping
    Z⁣⁣H⁣ ⁣⁣⁣⁣0⁣I⁣⁣ ⁣⁣E⁣W⁣ ⁣⁣⁣9⁣J⁣⁣⁣ ⁣L⁣H⁣⁣ ⁣H⁣⁣
  • ARMSTRONG INTERNATIONAL 30BI2 Steam Trap,30 psi,353F,5-1/2 In. L bx157 - Image 1 of 3

    ARMSTRONG INTERNATIONAL 30BI2 Steam Trap,30 psi,353F,5-1/2 In. L bx157

    Brand New · Armstrong
    S$ 282.71
    S$ 80.53 shipping
    ⁣⁣⁣⁣⁣J⁣2⁣⁣ ⁣⁣G⁣Y⁣⁣ ⁣P⁣9⁣⁣ ⁣⁣C⁣U⁣ ⁣⁣⁣1⁣⁣X⁣ ⁣
  • Armstrong International 800-075-150 Steam Trap, 150 Psi, 400F, 5 In. L - Image 1 of 4

    Armstrong International 800-075-150 Steam Trap, 150 Psi, 400F, 5 In. L

    Brand New · Armstrong
    S$ 257.28
    S$ 72.14 shipping
    G⁣S⁣W⁣p⁣ ⁣C⁣C⁣ ⁣1⁣о⁣n⁣s⁣o⁣G⁣ ⁣C⁣r⁣9⁣ ⁣3⁣e⁣d⁣U⁣⁣⁣⁣ ⁣F⁣
  • ARMSTRONG AIR R40403-003 Blower Control Fan Timer Board 28PV28 - Image 1 of 1

    ARMSTRONG AIR R40403-003 Blower Control Fan Timer Board 28PV28

    Brand New · Armstrong
    S$ 391.23
    S$ 39.98 shipping
    B⁣C⁣S⁣p⁣o⁣n⁣ѕ⁣ ⁣o⁣r⁣e⁣d⁣⁣⁣P⁣⁣V⁣⁣⁣ ⁣⁣H⁣5⁣ ⁣⁣⁣U⁣Y⁣
  • Armstrong Furnace Blower Control Circuit Board (# R40403-003) - Image 1 of 2

    Armstrong Furnace Blower Control Circuit Board (# R40403-003)

    Brand New · Armstrong
    S$ 231.69
    S$ 53.70 shipping
    S⁣p⁣o⁣n⁣7⁣T⁣ѕ⁣ ⁣o⁣r⁣T⁣e⁣R⁣d⁣ ⁣⁣V⁣⁣⁣N⁣⁣ ⁣⁣⁣⁣⁣J⁣R⁣
  • New Lennox Ducane 32608 P-8-4596 42A2301 Disc Limit Control Switch L150-35F - Image 1 of 4

    New Lennox Ducane 32608 P-8-4596 42A2301 Disc Limit Control Switch L150-35F

    Brand New · Armstrong
    S$ 49.48
    S$ 29.88 shipping
    ⁣A⁣4⁣ ⁣⁣⁣C⁣⁣⁣C⁣ ⁣⁣⁣⁣5⁣G⁣⁣ ⁣H⁣3⁣⁣ ⁣E⁣B⁣⁣⁣ ⁣L⁣
  • R39029B002 Allied Control Board OEM R39029B002 NOS For Armstrong - Image 1 of 3

    R39029B002 Allied Control Board OEM R39029B002 NOS For Armstrong

    Brand New · Armstrong
    S$ 49.46
    S$ 36.44 shipping
    I⁣⁣⁣⁣J⁣ ⁣G⁣H⁣⁣⁣⁣ ⁣⁣⁣⁣J⁣4⁣ ⁣4⁣2⁣⁣ ⁣⁣Q⁣⁣⁣⁣6⁣
  • Armstrong International 881-075-250 Steam Trap,250 Psi,450F,5 In. L(c) - Image 1 of 4

    Armstrong International 881-075-250 Steam Trap,250 Psi,450F,5 In. L(c)

    Brand New · Armstrong
    S$ 318.06
    S$ 110.55 shipping
    ⁣L⁣⁣0⁣⁣ ⁣3⁣T⁣⁣ ⁣⁣⁣⁣I⁣P⁣⁣ ⁣B⁣O⁣ ⁣3⁣G⁣⁣⁣ ⁣⁣⁣⁣
  • Armstrong International 800-075-150 Steam Trap,150 Psi,400F,5 In. (S1E5) - Image 1 of 4

    Armstrong International 800-075-150 Steam Trap,150 Psi,400F,5 In. (S1E5)

    Brand New · Armstrong
    S$ 281.31
    or Best Offer
    S$ 55.17 shipping
    ⁣7⁣C⁣⁣⁣⁣ ⁣8⁣Q⁣⁣⁣⁣ ⁣⁣⁣2⁣⁣⁣I⁣ ⁣0⁣5⁣ ⁣⁣⁣⁣U⁣D⁣
  • Armstrong A/C Blower Control Board 40403-001 New - Image 1 of 4

    Armstrong A/C Blower Control Board 40403-001 New

    Brand New · Armstrong
    S$ 134.29
    or Best Offer
    S$ 43.71 shipping
    S⁣M⁣⁣⁣⁣ ⁣⁣6⁣⁣6⁣ ⁣C⁣⁣⁣B⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣H⁣
  • Armstrong Air R40154B013 Limit Control Green/White - Image 1 of 4

    Armstrong Air R40154B013 Limit Control Green/White

    Brand New · Armstrong
    S$ 84.82
    or Best Offer
    S$ 30.93 shipping
    I⁣P⁣ ⁣⁣⁣G⁣⁣R⁣ ⁣⁣⁣⁣J⁣⁣5⁣ ⁣P⁣⁣V⁣⁣ ⁣⁣⁣⁣⁣N⁣E⁣⁣
  • ARMSTRONG 52M46 Control Board R20470502 V: [Voltage] A: [Current] P: [Power] - Image 1 of 4

    ARMSTRONG 52M46 Control Board R20470502 V: [Voltage] A: [Current] P: [Power]

    Brand New · Armstrong
    S$ 415.59
    S$ 39.18 shipping
    Q⁣M⁣ ⁣S⁣⁣⁣⁣⁣⁣⁣⁣U⁣ ⁣⁣⁣⁣⁣D⁣⁣K⁣⁣⁣ ⁣⁣P⁣9⁣ ⁣0⁣
  • Armstrong International 811-050-250 Steam Trap, 250 Psi, 400F, 5 In. L, C5297-23 - Image 1 of 1

    Armstrong International 811-050-250 Steam Trap, 250 Psi, 400F, 5 In. L, C5297-23

    Brand New · Armstrong
    S$ 271.42
    S$ 87.90 shipping
    3⁣2⁣ ⁣5⁣8⁣⁣⁣⁣⁣ ⁣P⁣H⁣⁣ ⁣⁣Z⁣L⁣⁣ ⁣⁣Z⁣3⁣⁣ ⁣P⁣⁣⁣⁣
  • Armstrong Hydronic 216145-311 Flo-Control Valve 3/4" RED NEW - Image 1 of 4

    Armstrong Hydronic 216145-311 Flo-Control Valve 3/4" RED NEW

    Brand New · Armstrong
    S$ 141.35
    or Best Offer
    S$ 57.53 shipping
    C⁣⁣⁣L⁣⁣⁣⁣⁣ ⁣⁣⁣J⁣⁣⁣⁣⁣⁣I⁣ ⁣4⁣⁣C⁣⁣⁣⁣⁣⁣⁣
  • Armstrong International Steam Trap,Stainless Steel,125 psi,3/4in 811-075-125 - Image 1 of 1

    Armstrong International Steam Trap,Stainless Steel,125 psi,3/4in 811-075-125

    Brand New · Armstrong
    S$ 544.81
    Was: S$ 631.58was - S$ 631.58
    S$ 82.30 shipping
    ⁣J⁣A⁣ ⁣⁣1⁣⁣⁣⁣⁣⁣⁣S⁣⁣ ⁣I⁣Y⁣⁣ ⁣J⁣D⁣ ⁣⁣E⁣⁣ ⁣⁣⁣
  • Armstrong A8581 Duct 15-95% RH Humidistat - Image 1 of 3

    Armstrong A8581 Duct 15-95% RH Humidistat

    Brand New · Armstrong
    S$ 518.76
    or Best Offer
    S$ 61.68 shipping
    ⁣⁣⁣⁣⁣J⁣5⁣ ⁣⁣F⁣⁣⁣⁣⁣⁣⁣⁣⁣D⁣⁣⁣ ⁣N⁣⁣⁣S⁣ ⁣C⁣
  • Armstrong R40403-003 Furnace Control Circuit Board - Image 1 of 2

    Armstrong R40403-003 Furnace Control Circuit Board

    Brand New · Armstrong
    S$ 113.09
    or Best Offer
    S$ 54.45 shipping
    F⁣⁣I⁣⁣⁣ ⁣D⁣6⁣ ⁣C⁣L⁣ ⁣2⁣T⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣E⁣Q⁣ ⁣S⁣⁣
  • ARMSTRONG 71M28 Circuit Board Kit HVAC Standard Size Replacement Part - Image 1 of 4

    ARMSTRONG 71M28 Circuit Board Kit HVAC Standard Size Replacement Part

    Brand New · Armstrong
    S$ 367.40
    S$ 39.27 shipping
    Y⁣U⁣S⁣p⁣ ⁣o⁣n⁣ѕ⁣M⁣o⁣X⁣r⁣ ⁣9⁣Z⁣e⁣d⁣⁣ ⁣P⁣⁣5⁣⁣⁣ ⁣⁣M⁣R⁣
  • Armstrong 8975002-304 Seal Kit 1/2" NPT Pump Replacement Parts - Image 1 of 4

    Armstrong 8975002-304 Seal Kit 1/2" NPT Pump Replacement Parts

    Brand New · Armstrong
    S$ 650.34
    S$ 45.26 shipping
    5⁣Ѕ⁣H⁣p⁣ ⁣o⁣n⁣s⁣o⁣r⁣e⁣K⁣Z⁣d⁣⁣⁣ ⁣C⁣M⁣ ⁣L⁣⁣⁣⁣⁣⁣N⁣ ⁣
  • Armstrong 56L33 1/10 HP Condenser Motor 208/230V Single Phase - Image 1 of 4

    Armstrong 56L33 1/10 HP Condenser Motor 208/230V Single Phase

    Brand New · Armstrong
    S$ 468.44
    S$ 253.17 shipping
    Ѕ⁣p⁣o⁣n⁣s⁣N⁣B⁣o⁣ ⁣0⁣r⁣G⁣e⁣ ⁣V⁣0⁣ ⁣d⁣⁣⁣⁣C⁣O⁣⁣ ⁣V⁣⁣⁣
  • ARMSTRONG D65113 / D65113 (BRAND NEW) - Image 1 of 1

    ARMSTRONG D65113 / D65113 (BRAND NEW)

    FREE 2 YEAR RADWELL WARRANTY - Lead Times Vary
    Brand New · Armstrong
    S$ 2,788.34
    Was: S$ 3,186.48was - S$ 3,186.48
    S$ 97.20 shipping
    P⁣7⁣S⁣ ⁣p⁣o⁣n⁣s⁣J⁣O⁣ ⁣L⁣T⁣о⁣r⁣ ⁣G⁣F⁣ ⁣e⁣2⁣C⁣d⁣⁣ ⁣P⁣⁣⁣
  • Armstrong International 811-050-250 Steam Trap,250 Psi,400F,5 In. L (G) - Image 1 of 4

    Armstrong International 811-050-250 Steam Trap,250 Psi,400F,5 In. L (G)

    Brand New · Armstrong
    S$ 282.72
    S$ 94.51 shipping
    ⁣⁣⁣⁣⁣⁣V⁣⁣H⁣⁣⁣ ⁣S⁣⁣⁣⁣U⁣ ⁣6⁣⁣O⁣ ⁣L⁣⁣⁣Q⁣ ⁣⁣
  • Armstrong D25179 1/2" NPT Main Valve Kit Series 2000 Brass - Image 1 of 4

    Armstrong D25179 1/2" NPT Main Valve Kit Series 2000 Brass

    Brand New · Armstrong
    S$ 745.78
    S$ 88.23 shipping
    ⁣8⁣⁣⁣⁣⁣⁣T⁣⁣⁣ ⁣W⁣⁣S⁣ ⁣0⁣9⁣ ⁣⁣9⁣⁣K⁣⁣ ⁣⁣T⁣⁣4⁣
  • ARMSTRONG FLUID TECHNOLOGY 441279-012 FLOAT ROD GUIDE HIGH-PRECISION SS - Image 1 of 4

    ARMSTRONG FLUID TECHNOLOGY 441279-012 FLOAT ROD GUIDE HIGH-PRECISION SS

    Brand New · Armstrong
    S$ 207.79
    S$ 34.56 shipping
    ⁣1⁣⁣V⁣ ⁣⁣⁣⁣⁣⁣K⁣⁣⁣⁣Z⁣⁣⁣⁣ ⁣K⁣5⁣⁣ ⁣A⁣⁣⁣9⁣ ⁣
  • ARMSTRONG 73W18 Control-Limit Switch 150F Industrial HVAC Limit Switch - Image 1 of 4

    ARMSTRONG 73W18 Control-Limit Switch 150F Industrial HVAC Limit Switch

    Brand New · Armstrong
    S$ 128.68
    S$ 33.15 shipping
    ⁣7⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣4⁣ ⁣4⁣R⁣ ⁣B⁣⁣⁣B⁣⁣ ⁣⁣⁣6⁣⁣Y⁣⁣
  • Armstrong 05701B004 Johnson Control Pilot - Image 1 of 4

    Armstrong 05701B004 Johnson Control Pilot

    Brand New · Armstrong
    S$ 194.29
    S$ 216.43 shipping
    F⁣Q⁣⁣ ⁣H⁣Z⁣⁣ ⁣A⁣D⁣ ⁣⁣P⁣⁣9⁣⁣ ⁣⁣V⁣⁣Q⁣ ⁣H⁣⁣⁣⁣⁣⁣
  • ARMSTRONG R100195-01 / R10019501 (BRAND NEW) - Image 1 of 1

    ARMSTRONG R100195-01 / R10019501 (BRAND NEW)

    FREE 2 YEAR RADWELL WARRANTY - Lead Times Vary
    Brand New · Armstrong
    S$ 3,023.07
    S$ 97.20 shipping
    E⁣2⁣ ⁣U⁣O⁣⁣⁣⁣⁣ ⁣⁣9⁣B⁣ ⁣⁣G⁣N⁣ ⁣W⁣⁣⁣⁣8⁣⁣ ⁣⁣⁣⁣
  • ARMSTRONG D56596 / D56596 (BRAND NEW) - Image 1 of 1

    ARMSTRONG D56596 / D56596 (BRAND NEW)

    FREE 2 YEAR RADWELL WARRANTY - Lead Times Vary
    Brand New · Armstrong
    S$ 3,032.15
    S$ 97.20 shipping
    Ѕ⁣p⁣o⁣n⁣2⁣s⁣o⁣r⁣e⁣J⁣d⁣⁣⁣ ⁣⁣⁣⁣⁣⁣1⁣H⁣⁣ ⁣P⁣⁣A⁣ ⁣9⁣
  • ARMSTRONG R41992-001 / R41992001 (BRAND NEW) - Image 1 of 1

    ARMSTRONG R41992-001 / R41992001 (BRAND NEW)

    FREE 2 YEAR RADWELL WARRANTY - Lead Times Vary
    Brand New · Armstrong
    S$ 3,002.32
    S$ 97.20 shipping
    S⁣p⁣U⁣B⁣ ⁣о⁣n⁣s⁣o⁣5⁣r⁣2⁣e⁣ ⁣d⁣9⁣L⁣ ⁣9⁣T⁣⁣⁣ ⁣⁣G⁣N⁣ ⁣⁣
  • ARMSTRONG R46576-002 / R46576002 (BRAND NEW) - Image 1 of 1

    ARMSTRONG R46576-002 / R46576002 (BRAND NEW)

    FREE 2 YEAR RADWELL WARRANTY - Lead Times Vary
    Brand New · Armstrong
    S$ 2,927.10
    S$ 97.20 shipping
    ⁣I⁣3⁣⁣ ⁣⁣⁣H⁣⁣⁣R⁣ ⁣8⁣⁣⁣E⁣⁣⁣ ⁣⁣X⁣⁣Q⁣ ⁣⁣⁣⁣3⁣
  • ARMSTRONG 516860-025 / 516860025 (BRAND NEW) - Image 1 of 1

    ARMSTRONG 516860-025 / 516860025 (BRAND NEW)

    FREE 2 YEAR RADWELL WARRANTY - Lead Times Vary
    Brand New · Armstrong
    S$ 2,911.54
    ⁣Z⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣C⁣⁣⁣⁣⁣ ⁣O⁣⁣6⁣ ⁣⁣⁣A⁣