Hitachi SET FREE Serie Manual De Instrucciones página 24

PIPING WORK AND REFRIGERANT CHARGE
7.3.6 Position of anchorage bolts
1
1
A
131 948
1 Outdoor unit SET FREE RAS-(8-12)FSXN1E and RAS-(5/6)FSXNHE
2 Outdoor unit SET FREE RAS-(14/16)FSXN1E and RAS-(8-12)FSXNHE
A Openings for the anchorage bolts (4x) 38x15.
2 Secure the outdoor unit using the field-supplied anchorage
bolts.
A
8 PIPING WORK AND REFRIGERANT CHARGE
8.1 REFRIGERANT PIPE SELECTION
8.1.1 Refrigerant pipe selection
The RAS-(8-54)FSXN1E(-P) and RAS-(5-36)FSXNHE(-P) outdoor units can work as a heat pump system, by means of a two-pipe
system (gas pipe and liquid pipe), or they can work as a heat recovery system by means of a three-pipe system (high and low
pressure pipes and liquid pipe), requiring in addition the CH units supplied as accessories.
There is an optional specific pipe connection kit available according to the power of the outdoor unit:
Operating mode
Heat pump system
Heat recovery system
14
1
A
2
131 948
2
A
(mm)
131
Outdoor unit
(16-P)(18-24)
(26-32)
(32-P)(34-48)
(50-54)
(12-P) (14-24)
(24-P) (26-36)
(16-P)(18-24)
(26-32)
(32-P)(34-48)
(50-54)
(12-P) (14-24)
(24-P) (26-36)
PMML0392B rev.1 - 07/2016
131
Diagram of fastening of outdoor unit using field-supplied
anchorage bolts.
Nº of outdoor units Connection kit
2 MC-20AN1
2 MC-21AN1
3 MC-30AN1
4 MC-40AN1
2 MC-20AN1
3 MC-30AN1
2 MC-20XN1
2 MC-21XN1
3 MC-30XN1
4 MC-40XN1
2 MC-20XN1
3 MC-30XN1
A Nut
B Washer
C
M12 anchorage bolt
D Mortar fill
E Concrete
Indications
2 pipes type
•
for high/low pressure gas
•
for liquid
3 pipes type
•
for high/low pressure gas
•
for low pressure gas
•
for liquid