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  1. thanks for the information. Greatly appreciated....

    thanks for the information. Greatly appreciated.

    cheers!
  2. Replies
    2
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    539

    Hi, Correct me if my interpretation is wrong....

    Hi,

    Correct me if my interpretation is wrong. You have two grills for vents? each vent is 300CFM? therefore you need 600CFM fan, just add 5% of the capacity for frinction loss.
    Or use frequency...
  3. Sub-Cooling Air Cooled Condensing Units Using Condensate Water

    Hi All,

    Good day! I have VRF multi-split air-conditinoing system, 36HP with 12 (3 HP) connected FCU's.
    Philippines is a tropical country, and I'm thinking to collect all FCU condensate to serve...
  4. Replies
    4
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    1,190

    What type of meter output you would like? 4~20mA...

    What type of meter output you would like? 4~20mA or pulse?
  5. Replies
    10
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    4,282

    Use Ducted FCU, measure %RH coming out. If beyond...

    Use Ducted FCU, measure %RH coming out. If beyond control, say %60+. Process air through pre-cooling, so that from %60+ it would reduce to %50 or less.

    regards,
    moriel
  6. Thread: LG VRF USERS

    by morzy
    Replies
    0
    Views
    830

    LG VRF USERS

    Hi All,

    We are planning to purchase LG VRF system capacity of 4x36HP accu with matching FCU.

    Any bad experience for LG VRF System?

    regards,
    Morzy
  7. Replies
    23
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    6,187

    Intruments sometimes are unpredictable. If it's...

    Intruments sometimes are unpredictable. If it's deffective you need to replace. You have to verify 1st if it really trip according to setting or not before you replace bad low pressure switch.
  8. Replies
    26
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    1,809

    is your thermostats working? Do trial and error....

    is your thermostats working? Do trial and error. You may adjust manually or automatically.

    Air change is critical. You should establish how much air change you required.
  9. Replies
    15
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    1,553

    Yes! Nice Instrument.

    Yes! Nice Instrument.
  10. Thread: VRF MultiSplit

    by morzy
    Replies
    0
    Views
    433

    VRF MultiSplit

    Dear All,

    I dont fully understand VRF multi split system. Does R410 circulated each FCU even Off? If not this means there is a valve on/off? Am I right?

    :)
  11. Thread: Flue gas sensor

    by morzy
    Replies
    14
    Views
    1,320

    Use FF; * Siemens LFE10 Flame controller input...

    Use FF;
    * Siemens LFE10 Flame controller input with UV Flame sensor (QRA)
    * Siemens Sipart DR21 for Temp control of your boiler. I/O are VAV, infra Temp sensor and gas cut off solenoid.

    Cheers!...
  12. Replies
    15
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    1,553

    You can use Vector Thermostat that accept 4-20ma...

    You can use Vector Thermostat that accept 4-20ma input & ACI hi/low pressure transmitter.

    regards,
    morzy
  13. Replies
    6
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    1,244

    Hi Guys need your expertise according to your...

    Hi Guys need your expertise according to your ranking. Im making a survey for airconditioner quality and durability

    LG
    Samsung
    Carrier/Toshiba
    Mitsubishi
    Hitachi
    Trane
    Daiken
  14. Replies
    6
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    1,244

    Can you help me rank according to durability...

    Can you help me rank according to durability based on your experiences?
  15. Replies
    6
    Views
    1,244

    What A/C Brand is Durable

    Hi Guys,

    Which A/C Brand is durable to use as VRF system

    1. Samsung
    2. LG
    3. Carrier
    4. Hitachi
    5. Trane
    6. Daiken
  16. Replies
    5
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    1,174

    Yes.

    Yes.
  17. Replies
    5
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    1,174

    Airconditioner Specification (defective...

    Airconditioner Specification (defective compressor motor)
    Capacity: 2 TR
    Brand : Carrier
    Type: Ceiling Mounted
    Lenght of pipe : Approx 10 m.
    Compressor motor brand : copeland
    No. of year : 6...
  18. Replies
    5
    Views
    1,174

    2 TR compressor motor to 3 TR

    What is the disadvantages and advantages if I will to replace 2 Ton R. compressor motor to 3 Ton R. compressor motor? Any body tries? Please sent me a list of the advantages and disadvantages.
    ...
  19. Thread: insulation

    by morzy
    Replies
    5
    Views
    638

    insulation

    Hi!

    Good day to all. Im just wondering if what is the right way of isulating the refrigerant pipings. Im talking about a 7.5 TR a/C which insulation is only at low side.

    Should low side piping...
  20. Replies
    1
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    514

    manual d and manual j

    Hi,

    I searched all bookstore here in Phil but no one bookstore have a manual-j and manual-d book.

    Any1 can help me download it through and internet as pdf file?

    Rgrds,
    MorZy
  21. Replies
    19
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    1,203

    What would you reccomend? answer :replaced...

    What would you reccomend?
    answer :replaced compressor motor/ filter dryer and do proper procedure for the reprocessing of the a/c system.

    Does Brand Matter?
    answer: Brand doesnt matter as long...
  22. Thread: Air Handler Hums

    by morzy
    Replies
    20
    Views
    2,549

    Hi dear! You crossed over heheehhe. Will 1st...

    Hi dear!
    You crossed over heheehhe. Will 1st check the model of your airhandler (nameplate) then determine the size or capacity (BTU/HR or TR). Then you check the Condenser Capacity too. If both are...
  23. Replies
    10
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    3,180

    consult local contractor's for rule of thumb...

    consult local contractor's for rule of thumb sizing based on your country practices.

    Here in Philippines we are using 16-20 square meter per ton (for comfort cooling, like building offices). Max...
  24. Thread: enthalpy chart

    by morzy
    Replies
    4
    Views
    1,842

    no probs.. gud luck!!

    no probs..

    gud luck!!
  25. Replies
    10
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    11,647

    Short cycling is often cause of oversized a/c....

    Short cycling is often cause of oversized a/c. Short cycling increase your electricity bill.
  26. Thread: enthalpy chart

    by morzy
    Replies
    4
    Views
    1,842

    Download Psychrometri chart: ...

    Download Psychrometri chart:

    http://www.shareup.com/CYTSoft_Psychrometric_Chart-download-27296.html

    Steam table book has an included pyschrometric.

    Regards,
    MorZy
  27. Is your a/c not oversized? Try to adjust...

    Is your a/c not oversized? Try to adjust thermostat to lowest possible setting and observe how it runs. Then if continously run, therefore is all about the setting of your thermostat or maybe the...
  28. Thanks....

    Thanks....
  29. Replies
    21
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    1,306

    Can you give us the following: 1. discharge...

    Can you give us the following:
    1. discharge pressure
    2. Suction pressure
    3. Amps of the compressor
    4. Temperature of the compressor @ top most of the body
    5. Temperature of the compressor @...
  30. Replies
    12
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    1,064

    Sound's complicated. Check expansion valve or...

    Sound's complicated. Check expansion valve or replaced with brand new compressor.

    Regards,
    MorZy
  31. Replies
    21
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    1,306

    Take note your piping is very far/long. The said...

    Take note your piping is very far/long. The said installation is not suitable.

    1. equipped the system with pressure switch high and low side to protect your compressor.

    2. relocate the...
  32. Replies
    21
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    1,306

    The low side is 60 psi, what about your high side...

    The low side is 60 psi, what about your high side pressure? Is your condenser properly ventilate?
  33. Replies
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    1,306

    hard to figure it out. you mean your condenser is...

    hard to figure it out. you mean your condenser is above level of the evaporator?

    Usual life of your compressor? Reciprocating? or Scroll?
  34. Replies
    21
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    1,306

    www.hvactc.com/ref_basics/800x600/heat_pumps1.htm...

    www.hvactc.com/ref_basics/800x600/heat_pumps1.htm

    see accumulator discussion at this site. Shows you the trap with orifice as a venturi

    regards,
    MorZy
  35. Hi, I haven't seen it. Can you sent me a...

    Hi,

    I haven't seen it. Can you sent me a link, please.....
  36. Replies
    13
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    1,111

    Hi, Could it be.. Try to adjust the setting...

    Hi,

    Could it be.. Try to adjust the setting and observe. Maybe not your thermidistat accurate anymore.

    Regards,
    /MorZy/
  37. Replies
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    1,111

    yes i agree. Better look for a/c guy.

    yes i agree. Better look for a/c guy.
  38. Replies
    13
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    1,111

    check the following

    Do the following steps 1st prior to duct improvement. This may help.

    A. Is your fan motor blower the same as before? Original? might be a lesser RPM compare to your original. If still original try...
  39. anyone have a TRANE ductulator and DUCT wizard?

    Helloo,

    Anyone have a trane ductulator, and duct wizard for design purposes. Can you share some?

    Regards,
    Moriel
  40. Replies
    5
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    814

    Thanks for the comments: yes 3 phase motor....

    Thanks for the comments:

    yes 3 phase motor. Split type unit, floor mounted, not ducted. The reason why were planning to replace it by 3 TR due to close cutting measure of our company. Very...
  41. Replies
    5
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    814

    conversion from 7.5 TR to 3 TR. Need Help

    Hi,

    Good day to all.

    Our compressor motor of 7.5 TR A/C unit is defective. Since the said 7.5 TR A/C unit is oversize to the room serve due to renovation of room partitions, I am planning to...
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