Type: Posts; User: felixking
I vote for plugged cab tube intermittently
R-22 can be used as a holding charge vapor, but the pressure will change according to P-T chart when it comes down to below condensing temp, it doesn't matter because it still holds a positive...
One day, a radio talk show was on air,
the host invited audiences to call in,
and come up with words that can not be found in dictionaries,
but makes sense in a sentence..
Just installed a furnace, ran short of a coupling, I had to use a gavalnized coupling on black iron pipe, will this cause any problem or against any code, checked gas code (Ontario), didn't find any...
Mine was black hammer
Thanks all for your replies
It is not something difficult to arrange heat exchange upstream the coil, but manufacturers still do the other way, so it must be for a purpose. The only explanation...
Many rooftop units have heat exchanger located down stream of evp. coil, doesn't this cause condensation on heat exchanger?
I cannt see the point why they are designed this way...
460 V motors are commonly used for supply blower motor on 575 V lennox unit, are you sure the motor is 208/230?
The thumb of rule for air flow is 400 CFM/ton cooling and 200-300 CFM for heating (with exception of refrigerant heating cylce with heat pump, which requires high CFM), but what is the theoretical...
CO2 collected in gas system, vent pipe corroded, the reason could be:
- heat exchanger
- combustion air blower
- damper control
- flue cap
if suction valve is broken, what could be the most possible cause:
A - low pressure control not working
B - suction pressure too low
C - suction pressure too high
D - high discharge pressure
Thanks for the answers guys; but I have the impression that evaporative condenser fan comes on first, water pump comes after. Cooling tower works the other way: pump first and fan second. I just...
Thanks again icemeister. I am not a teacher, just trying to get a license in A/C & Rref.
owe you one...
This is another test question
how is a ice arena is laid?
from bottom to top:Insulation, sleeper, pipe support, rink pipe, floor
is this the right order?
Thanks icemeister, you answered my question.
it should be started at the highest point no matter where that point is in the line.
A non-balanced ported TXV, when head pressure rises, with variable ambient temperature, will the superheat rise, drop, stay the same or hunting?
When starting evaporative condenser, fan and water pump, which one should come on first?
bleeding txv has a bleed port, ususally it is a internal port that you cannt see and makes no difference in piping.
Its function is to allow the refrigerant to bleed from high side to low side to...
When line up display cases, how do you level them, i.e.from the lower end, from the higher end or from the high or low middle point.
This is question from a test I just wrote