Piping Work And Refrigerant Charge - Hitachi SET FREE Series Instruction Manual

PIPING WORK AND REFRIGERANT CHARGE

8 PiPinG Work anD refriGerant CHarGe
!
C a U t i o n
When brazing pipes, always protect the surrounding elements of the working area in order to avoid damage due to the high temperature of the flame.
8.1 ConneCtion kit seleCtion
The optional piping connection kit is required for the combination unit.
operating mode
Heat pump system
Heat recovery system
20 PMML0479 rev.2 - 02/2018
number of outdoor
outdoor unit
26 - 48
50 - 54
56-72
74-96
20 - 24
26 - 36
38 - 54
56-72
26 - 48
50 - 54
20 - 24
26 - 36
38 - 54
Connection kit
units
2 MC-21AN1
3 MC-30AN1
3 MC-NP31SA
4 MC-NP40SA
2 MC-20AN1
2 MC-21AN1
3 MC-30AN1
4 MC-NP40SA
2 MC-21XN1
3 MC-30XN1
2 MC-20XN1
2 MC-21XN1
3 MC-30XN1
kit contents
•
for gas: 1 part
•
for liquid: 1 part
•
for gas: 2 part
•
for liquid: 2 part
•
for gas: 2 part
•
for liquid: 2 part
•
for gas: 3 part
•
for liquid: 3 part
•
for gas: 2 part
•
for liquid: 2 part
•
for gas: 3 part
•
for liquid: 3 part
•
for low pressure gas: 1 part
•
for high/low pressure gas: 1 part
•
for gas: 1 part
•
for low pressure gas: 2 part
•
for high/low pressure gas: 2 part
•
for gas: 2 part
•
for low pressure gas: 1 part
•
for high/low pressure gas: 1 part
•
for gas: 1 part
•
for low pressure gas: 1 part
•
for high/low pressure gas: 1 part
•
for gas: 1 part
•
for low pressure gas: 2 part
•
for high/low pressure gas: 2 part
•
for gas: 2 part