Emerson Flow Controls FAQ
- Which way do you turn the superheat adjustment screw on a TXV?
Turn the adjustment screws Clockwise to increase superheat Counter-Clockwise to decrease superheat.
- Is a 200RB solenoid bi-flow?
Only if the bi-flow kit (KS30293) is installed.
- Can a BFK drier be installed in the suction line?
No, there is too much pressure drop.
- What is the tonnage of an XB1019HC1B?
This is a replacement power assembly number which cannot determine tonnage without also knowing the cage port number.
- Does an external equalizer line on a TXV balance system pressure?
No, you need a bleed hole for that purpose.
- Will the AC system operate if the liquid line drier is installed backwards?
No, there will be too much pressure drop.
- Can I replace a TXV which has a bleed hole with a TXV which does not?
Yes, if you add a hard start kit which contains capacitors and relays.
- Can Flow Controls solenoids be exposed to rain and snow?
No, all of Flow Controls solenoid coils are NEMA rated not weather proof.
- Why does the sensing bulb on a TXV make a rattling noise?
There is a solid ballast in the bulb which will rattle if shaken under abnormal circumstances.
- How do you know if the liquid line drier should be changed?
Change the drier if there is a wet reading in the sight glass.
- Does Flow Controls have a bi-flow suction line drier?
No, a standard suction line drier installed in the common suction line of the heat pump is recommended.
- If system refrigerant charge is changed from R12 to R22 will a different distributor be required?
Yes
- What is wrong if the outlet of a liquid line drier is frosted?
The drier is restricted and needs replaced.
- Can a liquid line solenoid be sized by knowing the connection size?
No, a solenoid must be sized by knowing system flow and capacity in tons.
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