Figure 27 - Front And Back Views For Fr3100 - Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual

C
A Suction side
B Low pressure measurement point
C Oil drainage tap position
D Position of oil-heating electrical resistance
E Oil temperature sensor
F Oil filter cover
G Minimum oil level
H Oil transducer
I Maximum oil level
J Liquid injection
K Oil loading plug

Figure 27 - Front and back views for Fr3100

Refrigerant charge
The units have been designed to operate with R134a refrigerant. So DO NOT USE refrigerants other than R134a.
The addition or removal of refrigerant gas must be carried out in compliance with the laws and regulations in force.
When refrigerant gas is added to or removed from the system, ensure proper water flow through the
exchanger for the entire charge/discharge time. Interrupting the water flow during this procedure would
evaporator to freeze with consequent breakage of its internal piping.
Damage caused by freezing makes the warranty void.
Removal of the refrigerant and replenishing operations must be performed by technicians who are qualified to use the
appropriate materials for this unit. Unsuitable maintenance can result in uncontrolled losses in pressure and fluid. Do not
disperse the refrigerant and lubricating oil in the environment. Always be equipped with a suitable recovery system.
The units ship with a full refrigerant charge, but in some cases it might be necessary to replenish the machine in the field.
Always verify the causes of a loss of refrigerant. Repair the system if necessary then recharge it.
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