Refrigerant Charging And Trial Running - York ERJC 36 Installation Instructions Manual

Installation Instructions
1) Bundle the refrigerant pipe and electric wire together with tape, and separate them from the drain pipe
2) Wrap the pipe from the bottom of the outdoor unit to the top of the pipe where it enters the wall.
During the wrapping, the later circle should cover half of the former one.
3) Fix the wrapped pipe on the wall with clamps.
CAUTION
Do not wrap the pipe too tightly; otherwise the insulation effect would be weakened. Additionally,
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make sure the drain hose is separated from the pipe.
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room.

4 Refrigerant Charging and Trial Running

a. Refrigerant Charging
1) The refrigerant has been charged into the outdoor unit before shipment, while additional refrigerant
2) Check if the liquid valve and the gas valve of the outdoor unit are closed fully.
by the vacuum pump.
4) When the compress is not running, charge the R410A refrigerant into the refrigerant pipe from the
liquid valve of the outdoor unit (do not do it from the gas valve).
b. Calculation of the Additional Refrigerant Charge
1) Refrigerant Charge in the Outdoor Unit before Shipment
Model
Refrigerant Charge (kg)
Notes
The refrigerant charge mentioned in the table above is not included those charged additionally in the
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indoor unit and the refrigerant pipe.
The amount of the additional refrigerant charge is dependent on the diameter and length of the liquid
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refrigerant pipe which is decided by the actual yield installation requirement.
Record the additional refrigerant charge for future maintenance.
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2) Calculation of the Additional Refrigerant Charge
If the total refrigerant pipe length (liquid pipe) is smaller than that listed in the table below, no additional
Manometer
"LO" knob
Hose
Gas Valve
Fig.8
Table 6
ERJC(36)R
3.6
8
Manometer
"HI" knob
Vacuum pump
by johnson controls
ERJC(42R
4.8
11