Drainage Piping Work; Water Piping Work; Electrical Work - Mitsubishi Electric PUHZ-SHW-HA Serie Manual De Instalación

4. Installing the refrigerant piping
<Limits of refrigerant piping installation>
SHW112, 140 : A+B+C ≤ 75 m
Fig. 4-10
5. Drainage piping work
Outdoor unit drainage pipe connection
PUHZ-SHW series is not connectable with a drainage pipe because of cold district
specification.
6. Water piping work (Only for Air to Water Heat Pump)
Minimum water quantity
Following water quantity is required in the water circuit.
Model Minimum water quantity (L)
SHW80 60
SHW112 80
SHW140 100
SHW230 160
7. Electrical work
7.1. Outdoor unit (Fig. 7-1, Fig. 7-2)
1 Remove the service panel.
2 Wire the cables referring to the Fig. 7-1 and the Fig. 7-2.
S1
S2
S3
B
L N S1 S2 S3
E
D
For Power For Power D
B
E
Fig. 7-1
Note: Only for Air to Water Heat Pump
When multiple indoor units (Hydro boxes) are connected to the outdoor
unit, wire the PCB of either one of the indoor unit and the outdoor unit (S1,
S2, S3).
It is impossible to connect the PCBs of multiple indoor units to the outdoor
unit.
A Indoor unit
B Outdoor unit
C Multi distribution pipe (option)
D Height difference
(Indoor unit Outdoor unit) Max. 30 m
E Height difference
(Indoor unit Indoor unit) Max. 1 m
A: Main piping
B, C: Branch piping
Max. 20 m
A
A Indoor unit
B Outdoor unit
C Remote controller
C
D Main switch (Breaker)
E Earth
A A
C
E
E
4.8. For twin/triple/quadruple combination (Fig. 4-10)
• When this unit is used as a FREE COMPO MULTI unit, install the refrigerant
piping with the restrictions indicated in the drawing on the left. In addition, if the
restrictions are going to be exceeded, or if there are going to be combinations of
indoor and outdoor units, refer to installation instructions for the indoor unit for
details about the installation.
Outdoor unit
SHW112, 140
Outdoor unit
SHW112, 140
A
F Terminal block
G Indoor/Outdoor connection terminal block (S1, S2, S3)
H Service panel
I Clamp
* Clamp the cables so that they do not contact the center of the service panel or the gas valve.
Note :
If the protective sheet for the electrical box is removed during servicing, be sure to
reinstall it.
Caution:
Be sure to install N-Line. Without N-Line, it could cause damage to the unit.
Permissible total Charge-less
piping length piping length
A+B+C A+B+C
75 m and less 30 m and less
|B-C| No. of bends
8 m and less Within 15
SHW80, 112V
L N S1 S2 S3
SHW112 - 230Y
L1 L2 L3 N S1 S2 S3
Fig. 7-2
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