Type: Posts; User: invensys
A30-2210 info hopfully pasted.
A30-2210 = Johnstone part # B13-240
A12-701 = Johnstone part # B10-334
The new 9045 and 9145 have 15A resistive & 1/4 hp @ 120v, and 1/2 hp at 240v, for the compressor.
The new 9045 and 9145 have 30A resistive & 1hp @ 120v, and 2hp at 240v,...
The Paragon UDT is cool, but here is the real info:
It is not intended to be a direct replacement for the Paragon 8xxx series defrost controls based on the relay capability of the existing...
I don't know if this helps. The link below is for a brand called Microtech.
Maybe this will help.
I was distracted during my writing of the previous response. I apologize for the grammar errors.
If this is a service only class, I can understand your reasoning. If this class is to learn how a refrigeration system works, then this lab recommendations I have made is valuable. My...
Pressure transducer measurements: discharge, 6" past compressor, suction, 6" after evaporator.
Temperatures, use thermocouples soldered to discharge tube at the condenser inlet. Suction, close...
Just a thought, try .030 capillary, 2', assuming 12k btu, maybe a Swagelok model SS-SS1.
Here is what I recommend. Remove the TXV. install a vernier metering valve with about 2' of capillary tube.
The link above shows...
A constant cut-in control is the idea. Wide differential. Just need to get the ice off of the coil. Any thermostat with a wide differential will do. The Ranco ETC-111000-000 with the sensor...
Defrost for a freezer is usually time initiate. Temperatue initiate is only with Hoshizaki med temp reach -in refrigerators.
Decrease the time between defrost cycles from, let's say 4 hours to...
You are looking for a 9700i. The website is:
How many zones?
Would you consider an ERC2 control? I have a sample if you would like to try one?
The ex model is for export. It should not show up in the U.S. The model is identical to the U.S. models and should work. As far as comments about gears, the gears are still machine hobbed, no...
Just the facts
Unfortuneately, mechanical relays click. Mercury relays do not. Mercury relays have the environmental issues though.
This recall is primarily for the manufacturers. The cause is due to Hydrogen embrittlement of the screws. The products are all under warranty and existing valves reworked; sold product...