Tefcold EXPRESS EX125C, Instruction Manual

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System Charging
a. After evacuating, ensure system holds vacuum for 30 minutes, charge refrigerant through
liquid line (NOT suction line). Refrigerant scales MUST be used on a critical charge system.
Then start the compressor and run more than 3 minutes for the purpose of making each
part of the compressor fully lubrication.
b. If refrigerant insufficient and no more refrigerant will enter system, start the compressor
and charge refrigerant through the suction line by throttling the liquid. This is done by
restricting the flow of the liquid by controlling the gauge valve to ensure is not passed
through the compressor. Never run the compressor for a long time, in case refrigerant is
insufficient or leaking. Otherwise the compressor will be overheated and damaged.
c. Refrigerant charge must be strictly adhered to section 8.6.2
Above visuals are for example usage only
8.6.2 Refrigerant Charge Limits
Cabinet Length mm 1250 1875 2500
Refrigerant Type - R449A
Gas Charges
TEFCOLD EXPRESS EXC – open fronted
g
1620 2000 2x2200
TEFCOLD EXPRESS EXCD – double pane
door
1300 1500 2x1750
8.6.3 Electricity
Electric connections must only be made by qualified personnel, according to safety
norms. Make sure that the power supply voltage is the same as that indicated on the
nameplate. 230V/1Ph/50Hz voltage variations on the supply line should not exceed
+/-6% of the nominal value.
IMPORTANT: Make sure that the electrical box cover is in place and that the power
supply cords are fitted with the appropriate cable clamps.