System Configuration; System Components; Selection Of The Heat Exchanger (Air Handling Unit); Contamination Control - Mitsubishi Electric CITY MULTI PAC-AH001-1 Manuel D'installation

3. System Configuration

3.1 System components

B
E
L
H
I
J

3.2 Selection of the heat exchanger (air handling unit)

3.2.1 Contamination control

Control the contamination to keep proper quality of the models using HFC refrigerant.
Contamination
Residual water content
Residual oil content
Residual foreign
substance
(including residual
machining oil content)
Others

3.2.2 Specifications of the heat exchanger

Refer to the LEV Kit applications guide for information on heat exchanger selection.
Specifications are subject to change without notice.
PAC-AH001-1
C
A
F
K
Fig 3-1
The content shall be less than 1.3E-3 oz/gal [10 mg/lit.].
The low residual oil pipe 5.4E-6 oz/ft [0.5 mg/m] or less shall be used
for heat exchangers.
For long piping connected or piping tended to be stagnated with oil, the
content shall be less than 3.2E-5 oz/ft [3 mg/m]. For other piping,
9.7E-5 oz/ft [9 mg/m] or less shall be applied.
The content shall be less than 8.2E-5 oz/ft
No chlorine content shall be found inside the refrigerant circuit.
16
Ⓐ Air handling unit
controller PAC-AH001-1
D
Ⓑ Air handling unit (field
supply)
Ⓒ Controller (field supply)
Ⓓ Outdoor unit
Ⓔ Heat exchanger (field
supply)
Ⓕ Gas Pipe (field supply)
Ⓖ Liquid Pipe (field
supply)
Ⓗ LEV Assembly
Ⓘ Thermistor (gas pipe)
G
Ⓙ Thermistor (liquid pipe)
Ⓚ Thermistor (suction air)
Contro
Ⓛ Thermistor (discharge
air)
Content
2
[25 mg/m
2
].