AEC FSS Series 1.5- 10 HP Fountain Solution Systems - Manual (Page 40)

FSS Series Fountain Solution Systems Page 39
IAE-600
4-4 Crankcase Heater
FSS-R Series models with remote condensers have a crankcase
heater. It is wired through the control transformer that operates
continuously whenever power is applied to the chiller.
!
CAUTION
Energize the crankcase heater for at least 24 hours before initial startup
to drive dissolved refrigerant from compressor oil.
Failure to do so will damage the compressor!
4-5 High Pressure Cutout
This electro-mechanical cut-out device opens the compressor
control circuit if the refrigeration system compressor discharge
pressure exceeds 375 psi (2,413.25 kPa/24.1 bars) for an air-
cooled chiller and 290 psi (2,413.25 kPa/24.1 bars) for a water-
cooled chiller.
Important!
The high-pressure cutout is a manual reset device typically mounted on the
compressor discharge line inside the mechanical cabinet.
Call a refrigeration service technician to analyze the problem!
4-6 Low Pressure Cutout
This electro-mechanical cut-out device opens the compressor
control circuit if the refrigeration system compressor suction
pressure drops below 15 psi (220.6 kPa/2.2 bars). It automatically
resets when refrigerant suction pressure reaches 30 psi (344.8
kPa/3.4 bars).
Important!
The low pressure cutout is an automatic reset device typically mounted
on the compressor suction line inside the mechanical cabinet.
Call a refrigeration service technician to analyze the problem!