Type: Posts; User: morzy
thanks for the information. Greatly appreciated.
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...
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...
What type of meter output you would like? 4~20mA or pulse?
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.
We are planning to purchase LG VRF system capacity of 4x36HP accu with matching FCU.
Any bad experience for LG VRF System?
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.
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.
Yes! Nice Instrument.
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?
* 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.
You can use Vector Thermostat that accept 4-20ma input & ACI hi/low pressure transmitter.
Hi Guys need your expertise according to your ranking. Im making a survey for airconditioner quality and durability
Can you help me rank according to durability based on your experiences?
Which A/C Brand is durable to use as VRF system
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...
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.
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...
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?
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...
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...
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...
Short cycling is often cause of oversized a/c. Short cycling increase your electricity bill.