COMMERCIAL

Test IceMachine , check devices related to commercial

Commercial Icemachine, Walk-in Freezer Low side Pressure  = [45-50 PSI] for 404A , AmericaFreezerWiring  
Icemachine:
Freezers: True T-72F (3 doors)_ Evap fan blows upward, and stop blows when door open.(19PSI/237PSI with R_404A)  
Freezers: True T-23F  (1 door): Deheater=20Ω  
Under Counter Refrigerator: R408A : low side [45_50]; R134A low side 25 psi, 1HP/1PH compressor => 8.5Amps  

TrueŽ MFG - Defrost Time Clock: Time indicator with a "Time" sign (what time now) adjust by turning center knob ccw, the screws  on circle is time to defrost.

 
True Cooler Compressor Wiring .  
True Beer Cooler (Mod TD-65-24   11 Oz of) R 134 low side [18_23 psi]  
Walk-In Cooler R22: low side [45-50 or Super heat [12 to 14] or 40F-26F=14F  for TXV],  
Walk-In Freezer 404A: Low side [43 Psi ], TXV EFSE-1/2-ZP for R404A , Def Timer =  pin/25 mns * 3. condenser 3 phase 240v <=> inside 240v for all loads.  And if High side is so high that compressor locks out, coil solenoid should be checked. Fill freon until TXV clears  
AC system: R410 (when open door low side 150 PSI , high side 550 PSI )  
TXV adjustment