Outdoor Unit
Installation Manual
– 16 –
A
D
LN
123
A
10
10
LN
40
10
50
50
10
30
123
Howtowire
1. Connect the system interconnection wire to the
terminal as identified with their respective numbers
on the terminal block of the Hydro and Outdoor
Units.
H07 RN-F or 60245 IEC 66 (1.5 mm
2
or more)
2. When connecting the system interconnection wire to
the Outdoor Unit terminal, prevent water from
coming into the Outdoor Unit.
3. Insulate the unsheathed cords (conductors) with
electrical insulation tape. Process them so that they
do not touch any electrical or metal parts.
4. For interconnecting wires, do not use a wire joined
to another on the way.
Use wires long enough to cover the entire length.
5. Fix power supply wire and system interconnection
wire.
<HWT-40, 60>
• Be sure to use the cord clamps attached to the
product.
<HWT-80, 110, 140>
• Fix each wire tightly to the valve fixing plate with the cable
tie specified below. Measure the diameter of the wire to
be fixed, and fasten the wire with the supplied cable tie
(T50R-HSW from HellermannTyton) so that length A of the
surplus portion of the tie satisfies the following expression:
A = 183 - L
A: Minimum length of surplus portion of cable tie (mm)
L: Circumferential length of wire (mm)
L = Diameter of wire D (mm) × π
• Cut off the tie surplus portion (A) of the cable tie.
CAUTION
• An installation fuse must be used for the power supply
line of this Air to Water Heat Pump.
• Incorrect / incomplete wiring may lead to an electrical
fire or smoke.
• Prepare a dedicated power supply for the Air to Water
Heat Pump.
• This product can be connected to the mains power.
Fixed wire connections:
A switch that disconnects all poles and has a contact
separation of at least 3 mm must be incorporated in
the fixed wiring.
<HWT-80,110,140>
<Single-phase model>
Strippinglengthpowersupplywireand
systeminterconnectionwire
To Hydro Unit
terminal block
Power supply
terminal block
Earth
screw
Earth
screw
Pipe valve
fixing plate
Cable tie
Power supply wire
System
interconnection wire
Details of A
Pipe valve
fixing plate
Cable tie
Cable tie
Wire
Wire
Power supply
wire
System
interconnection
wire
Earth wire
Earth wire
(mm)
123LN123LN
LN
123
30
30
10
10 10
10
<HWT-40,60>
Strippinglengthpowercordand
connectingwire
Connecting wire
Earth line Earth line
(mm)
Power wire
Terminal block
Screw
Connecting wire
Cord clamp
Power wire
31-EN
32-EN
10
40
50
10 L1 L2 L3 N
(mm)
(mm)
50
30
Strippinglengthpowersupplywireand
indoor/outdoorconnectingwires
Power supply
wire
Indoor/outdoor
connecting wires
Earth lineEarth wire
10
40
50
10 L1 L2 L3 N
(mm)
(mm)
50
30
<HWT-80,110,140>
<Three-phase model>
Earth
screw
Cable tie
Power supply wire
Indoor/outdoor
connecting wires
Value fixing
plate
(Please see AIR CONDITIONER IM 2H30051301 )