Skills and Trades

Replies / Views	Last post
Define hydronics. What will be an ideal response? ... Started by Wadzanai	3 Replies 16 Views	Jul 26, 2018 by miss.ashley
What are the disadvantages of hot water heating systems? What will be an ideal ... Started by jeatrice	1 Replies 47 Views	Jul 26, 2018 by BUTTHOL369
What is the best method to charging a small appliance that holds less than a pound of refrigerant? ... Started by kwoodring	1 Replies 69 Views	Jul 26, 2018 by pami445
Using Figure 31-29, what would be the proper subcooling for a system with an ambient temperature of ... Started by Jipu 123	1 Replies 14 Views	Jul 26, 2018 by ciecieme
What safety measures are used to allow for expansion in a hot water heating system? What will be ... Started by wrbasek0	3 Replies 15 Views	Jul 26, 2018 by guyanai
Describe a series loop, single circuit hot water piping system. What will be an ideal ... Started by Haya94	1 Replies 37 Views	Jul 26, 2018 by dawsa925
What is the advantage to a two-pipe system, direct return? What will be an ideal ... Started by Yolanda	1 Replies 23 Views	Jul 26, 2018 by djpooyouma
How does a two pipe system, reverse return differ from a two pipe system, direct return? What ... Started by @Brianna17	1 Replies 21 Views	Jul 26, 2018 by macmac
What are some of the accessories required for a hot water boiler? What will be an ideal ... Started by newyorker26	3 Replies 24 Views	Jul 26, 2018 by medine
What are the advantages of radiant floor heating? What will be an ideal ... Started by NguyenJ	1 Replies 69 Views	Jul 26, 2018 by millet
Using the information from question 26, what charge adjustment needs to be made if the liquid line ... Started by james0929	1 Replies 24 Views	Jul 26, 2018 by kxciann
Why do communicating control boards often have terminals for traditional 24 volt controls? What ... Started by RYAN BANYAN	1 Replies 11 Views	Jul 26, 2018 by SVictor
How should ductwork be sealed against air leaks? What will be an ideal ... Started by D2AR0N	3 Replies 43 Views	Jul 26, 2018 by johnpizzaz
How can vibrations and sound transmission from the unit to the ductwork be minimized? What will ... Started by tiffannnnyyyyyy	1 Replies 41 Views	Jul 26, 2018 by joanwhite
Use Figures 89-27 and Table 89-2 to determine the correct amount of additional charge for a new ... Started by naturalchemist	1 Replies 24 Views	Jul 26, 2018 by blakeserpa
List the four phases of a planned maintenance service call. What will be an ideal ... Started by fahad	1 Replies 32 Views	Jul 26, 2018 by blfontai
What is the purpose of checking the supply voltage both before and after operating the system? ... Started by Collmarie	3 Replies 43 Views	Jul 26, 2018 by cuttiesgirl16
When installing a split system, what should be done prior to opening the installation valves? ... Started by awywial	1 Replies 129 Views	Jul 26, 2018 by CAPTAINAMERICA
What type of overcurrent protection is used with air conditioning equipment? What will be an ... Started by asan beg	1 Replies 39 Views	Jul 26, 2018 by fffftttt
List all major phases of system installation. What will be an ideal ... Started by joesmith1212	1 Replies 53 Views	Jul 26, 2018 by sierramartinez
In Figure 39-34, when is the reversing valve energized: the heating cycle or the cooling cycle? ... Started by bio_gurl	3 Replies 68 Views	Jul 26, 2018 by wtf444
In Figure 39-46, how does the thermostat control the operation of the compressor? What will be an ... Started by jenna1	1 Replies 14 Views	Jul 26, 2018 by jackie
In Figure 39-24, what controls the fan operation in heating? What will be an ideal ... Started by jasdeep_brar	1 Replies 22 Views	Jul 26, 2018 by Dunkey
In Figure 39-33, what voltage operates the potential relay coil? What will be an ideal ... Started by ap345	1 Replies 57 Views	Jul 26, 2018 by Kdiggy
In a thermocouple, the point at which the two dissimilar wires are connected to each other is ... Started by tsand2	3 Replies 24 Views	Jul 26, 2018 by bblaney