Federal SSRSP Series Installation & Operation Instructions

Federal SSRSP Series Installation & Operation Instructions Manual pdf 7 page image

- 7 -REFRIGERATIONSelf Contained ModelsBEFORE 12/1/19SELF CONTAINEDWITH ELECTRONIC CONTROL SSRSP5052 SSRSP5952 SSRSP7752Refrigeration R404 Charge 32 OZ 34 OZ 36 OZ(E3091-2 EXCEL)AFTER 12/1/19SELF CONTAINEDWITH ELECTRONIC CONTROL SSRSP5052 SSRSP5952 SSRSP7752Refrigeration R449 Charge 32 OZ 34 OZ 36 OZThe self-contained models are shipped from the factory with a completely operational 404A refrigerationsystem (before 12/1/19) or 449A refrigeration (after 12/1/19) and require no modifications or adjustmentsupon installation. The case must be installed as per the installation section of this manual to provide propercondensing air cooling.The dual pressure control is used as a safety device and is factory set. The pressure control works on adifferential. The low-pressure side is a safety to protect the compressor in the case of refrigerant loss. Thehigh-pressure side is a safety to protect from system failure causing too high of system pressure.The high side of the pressure control is factory set to 400psi and is not adjustable. Low side settingfor the R404a and R449a cases are set at 40psi differential for the cutout and 60psi for the cut-in.Note: The condenser fan runs continuously.This unit also has a defrost timer that will shut the compressor off a set number of times per day to insure afull defrost occurs. The compressor will remain off until the either the off time is reached or until thetemperature sensor on the coil reaches a set temperature, whichever happens first.Remote ModelsREMOTESSRSP5052 SSRSP5952 SSRSP7752Refrigeration R449 Charge CHARGED IN FIELDRemote Low Press. Switch Cut In 50Remote Low Press. Switch Cut Out 15Remote High Press. Switch Cut Out 450 psiBTU Requirement @90F/20F 5400 6400 7400(E3091-2 EXCEL)