Skills and Trades

Replies / Views	Last post
What is a water to water heat pump? What will be an ideal ... Started by lidoalex	1 Replies 21 Views	Jul 26, 2018 by morganmarie791
What is ozone? What will be an ideal response? ... Started by beccaep	3 Replies 14 Views	Jul 26, 2018 by macmac
What is the primary safety concern when working with R-410A? What will be an ideal ... Started by charchew	1 Replies 65 Views	Jul 26, 2018 by pallen55
Why must a heat pump indoor coil be able to withstand higher pressures than a regular air ... Started by imowrer	1 Replies 26 Views	Jul 26, 2018 by bassamabas
Define the term glide when referring to zeotropic refrigerants. What will be an ideal ... Started by folubunmi	1 Replies 73 Views	Jul 26, 2018 by vkodali
What is the difference between a compound and a zoetrope? What will be an ideal ... Started by NClaborn	3 Replies 11 Views	Jul 26, 2018 by Ksh22
How does a heat pump hot water heater work? What will be an ideal ... Started by meagbuch	1 Replies 20 Views	Jul 26, 2018 by mmpiza
What is the difference between a disposable refrigerant cylinder and a refillable refrigerant ... Started by littleanan	1 Replies 39 Views	Jul 26, 2018 by Kdiggy
What is the difference between demand defrost control and time temperature defrost control? What ... Started by Caiter2013	1 Replies 52 Views	Jul 26, 2018 by l.stuut
What contaminants can be found in refrigerant? What will be an ideal ... Started by jazziefee	3 Replies 12 Views	Jul 26, 2018 by connor417
What refrigerant is being used in small appliances in place of R-12? What will be an ideal ... Started by shofmannx20	1 Replies 34 Views	Jul 26, 2018 by at
What refrigerant is being used in new air conditioning systems in place of R-22? What will be an ... Started by Lobcity	1 Replies 37 Views	Jul 26, 2018 by kristenb95
Which types of refrigerants are listed as Class I ozone depleting substances by the EPA? What ... Started by tiara099	1 Replies 37 Views	Jul 26, 2018 by firehawk60
What chemical family is the basic building block for most modern refrigerants? What will be an ... Started by jlmhmf	3 Replies 29 Views	Jul 26, 2018 by reelove4eva
What differences are there between handling zeotropes and azeotropes? What will be an ideal ... Started by fasfsadfdsfa	1 Replies 16 Views	Jul 26, 2018 by SomethingSomething
What are some of the advantages for radiant floor heating? What will be an ideal ... Started by pepyto	1 Replies 24 Views	Jul 26, 2018 by sailorcrescent
What is the difference between the way a secondary refrigerant absorbs heat and the way a primary, ... Started by frankwu	1 Replies 12 Views	Jul 26, 2018 by nmyers
How can heat be considered a form of pollution? What will be an ideal ... Started by clippers!	3 Replies 25 Views	Jul 26, 2018 by InfiniteSteez
Why do CFC's deplete the ozone layer? What will be an ideal ... Started by lunatika	1 Replies 22 Views	Jul 26, 2018 by samiel-sayed
What benefit is the ozone layer to us? What will be an ideal ... Started by Lisaclaire	1 Replies 21 Views	Jul 26, 2018 by jsm54321
What is the difference between ozone depletion and global warming? What will be an ideal ... Started by cnetterville	1 Replies 84 Views	Jul 26, 2018 by ashely1112
Why would a water source heat pump be more efficient than an air-to-air heat pump? What will be ... Started by dejastew	3 Replies 84 Views	Jul 26, 2018 by bd5255
Why should a refrigeration lubricant be miscible with the system refrigerant? What will be an ... Started by bucstennis@aim.com	1 Replies 86 Views	Jul 26, 2018 by connor417
What is a hygroscopic lubricant? What will be an ideal ... Started by fasfsadfdsfa	1 Replies 127 Views	Jul 26, 2018 by morrie123456
Which type of system requires more pumping horsepower for the water: open loop or closed loop? ... Started by nautica902	1 Replies 89 Views	Jul 26, 2018 by bookworm410