164 Aquarea air-to-water heat pumps - Planning and installation manual - 02/2022
Installation
6
Connections of the refrigerant pipes – outdoor units
2
1
4
3
5
1 Front plate
2 Pipe panels
3 Impermissible location to place
the adjustable spanner
4 Correct location to place the
adjustable spanner
5 Thermal insulation or putty
Permissible tightening torques of the refrigerant pipes – Outdoor units
Outdoor units for bi-bloc systems Refrigerant gas pipe Refrigerant liquid pipe
Diameter
mm (inches)
Torque
Nm
Diameter
mm (inches)
Torque
Nm
High Performance | J Generation | R32
WH-UD03JE5 12.7 (1/2) 55 6.35 (1/4) 18
WH-UD05JE5 12.7 (1/2) 55 6.35 (1/4) 18
WH-UD07JE5 15.88 (5/8) 65 6.35 (1/4) 18
WH-UD09JE5-1 15.88 (5/8) 65 6.35 (1/4) 18
High Performance | H Generation | R410A
WH-UD**HE5 15.88 (5/8) 65 9.52 (3/8) 42
WH-UD**HE8 15.88 (5/8) 65 9.52 (3/8) 42
T-CAP | H Generation | R410A
WH-UX**HE5 15.88 (5/8) 65 9.52 (3/8) 42
WH-UX**HE8 15.88 (5/8) 65 9.52 (3/8) 42
WH-UQ**HE8 15.88 (5/8) 65 9.52 (3/8) 42
HT | F Generation | R407C
WH-UH**FE5 15.88 (5/8) 65 9.52 (3/8) 42
WH-UH**FE8 15.88 (5/8) 65 9.52 (3/8) 42