CPS FX1234, Руководство по обслуживанию, Страница: 11 / 57

11
REFILL
NOTE: The FX1234 and FX3030 will implement refrigerant indentifying process according to J2743. Refrigerant sample
will pass through (SC2) low side service hose. The refrigerant sample will then pass through low side manifold valve (LV2)
and (LS2) solenoid valve allow sample into identifier. Once refrigerant has been sampled and passes. The recovery unit will
operate as instructed below.
See Identifier Plumbing Schematic .
To refill the FX134A / FX 1234 / FX3030 , attach a new supply tank of refrigerant to the HI Side Service hose using
the required adaptors. The liquid refrigerant from the new refrigerant tank will flow through the open HI Side
service hose and pass through the open Hi Side valve (LV1) then through the open RECOVER valve (LV4) and
then into a Constant Pressure Regulator. The REGULATOR reduces the pressure down to 80 psig where it flows
into a DOA Chamber where liquid refrigerant is boiled off by heat exchanger in DOA chamber, and oil separated
from refrigerant. After leaving the DOA Chamber, the vapor refrigerant enters the COMPRESSOR suction where it
is compressed to a high pressure gas. The compressed refrigerant passes through the RECOVERY OUT valve
(HV1) then passes by systems HIGH PRESSURE SWITCH (HP) on its way to the storage tank. If the pressure
goes above 450 psig, HP will open and disrupt power to the unit’s compressor and signals to the control PCB that a
HIGH PRESSURE LIMIT condition exists.