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Wiring a Taco valve control box 404-4-exp, question one.

cnmdesign
cnmdesign Member Posts: 102
edited September 2018 in Radiant Heating
On a Taco 404-4-Exp zone valve control box, can I wire the 120v fan from my air/water HX to the 120v pump end switch on the left. If so, can someone show me a rough schematic. I want the fan on the HX to come on when the zone calls for heat. I use a single Alpha2 ,

https://www.ecomfort.com/manuals/burnham-5aeb718d763ba5a773a0a0f937640ec1.pdf

The fan spects:

Axial fan Motor
YWF4E-250B-2T
120v 60Hz 0.58A 70w 1580 r/min
120v 60Hz 0.32A 40W 1310 r/min
7uf/450V CLF

https://chillxchillers.com/air-to-water-heat-exchangers/zephaire-2-speed-air-to-water-heat-exchangers?sku=ZAU0120500ZA-2&gclid=EAIaIQobChMIvs-b_PPJ3AIVA5ppCh2CuQ_KEAkYASABEgIrNvD_BwE

Thanks
Combat Veteran owned, Final Salute LLC on FaceBook & Twitter.
www.afinalsalute.com

Comments

  • Ironman
    Ironman Member Posts: 6,876
    A blower would draw more amperage than the control allows for those contacts. You'd need to use an isolation relay.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    cnmdesign
  • Zman
    Zman Member Posts: 7,330
    You might consider controlling the fan with an aquastat mounted on the pipe at the heater. That way the fan won't blow cold air waiting for the boiler to heat up.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
    cnmdesign
  • Ironman
    Ironman Member Posts: 6,876
    Nah, nothing that expensive.

    This is what you need:



    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • cnmdesign
    cnmdesign Member Posts: 102
    edited September 2018
    Ironman said:

    A blower would draw more amperage than the control allows for those contacts. You'd need to use an isolation relay.

    The fan spects:
    Axial fan Motor
    YWF4E-250B-2T
    120v 60Hz 0.58A 70w 1580 r/min
    120v 60Hz 0.32A 40W 1310 r/min
    7uf/450V CLF

    https://chillxchillers.com/air-to-water-heat-exchangers/zephaire-2-speed-air-to-water-heat-exchangers?sku=ZAU0120500ZA-2&gclid=EAIaIQobChMIvs-b_PPJ3AIVA5ppCh2CuQ_KEAkYASABEgIrNvD_BwE
    Combat Veteran owned, Final Salute LLC on FaceBook & Twitter.
    www.afinalsalute.com
  • Ironman
    Ironman Member Posts: 6,876
    If the amp draw is less than 2 amps, you don't need the relay.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    cnmdesign
  • cnmdesign
    cnmdesign Member Posts: 102
    edited September 2018
    Ironman said:

    If the amp draw is less than 2 amps, you don't need the relay.

    So according to the sticker on the fan, it's OK?
    Combat Veteran owned, Final Salute LLC on FaceBook & Twitter.
    www.afinalsalute.com
  • Ironman
    Ironman Member Posts: 6,876
    Yeah.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    cnmdesign
  • HVACNUT
    HVACNUT Member Posts: 4,595
    Only .58 RLA on a 1580 RPM blower motor?
  • cnmdesign
    cnmdesign Member Posts: 102
    HVACNUT said:

    Only .58 RLA on a 1580 RPM blower motor?

    That's what it says.
    Combat Veteran owned, Final Salute LLC on FaceBook & Twitter.
    www.afinalsalute.com
  • cnmdesign
    cnmdesign Member Posts: 102
    edited September 2018
    Hot Rod, am I correct in assuming when wiring a Caleffi four wire Z-one zone valve to this control box it's 1Bk, 2Bk, 3R, 4R with no + or - using an Alpha2 pump?

    https://www.ecomfort.com/manuals/burnham-5aeb718d763ba5a773a0a0f937640ec1.pdf
    Combat Veteran owned, Final Salute LLC on FaceBook & Twitter.
    www.afinalsalute.com