Electrical Work - Toshiba HWT-401HW-E Installation Manual

Outdoor Unit
7

Electrical work

WARNING WARNING
1. Using the specified wires, ensure that the wires
are connected, and fix wires securely so that the
external tension to the wires does not affect the
connecting part of the terminals.
Incomplete connection or fixation may cause a fire,
etc.
2. Be sure to connect the earth wire. (Grounding
work)
Incomplete earthing may lead to electric shock.
Do not connect earth wires to gas pipes, water pipes,
lightning rods or earth wires for telephone wires.
3. The appliance shall be installed in accordance
with national wiring regulations.
Capacity shortages of the power circuit or an
incomplete installation may cause an electric shock
or fire.
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 an exclusive 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.
• Be sure to use the cord clamps attached to the
product.
• Do not damage or scratch the conductive core or inner
insulator of the power and hydro/outdoor connecting
wires when peeling them.
• Use the power and hydro/outdoor connecting wires
with specified thicknesses, specified types and
protective devices required.
• Check that cabling will not be subject to wear,
corrosion, excessive pressure, vibration, sharp edges
or any other adverse environmental effects.
The check shall also take into account the effects of
aging or continual vibration from sources such as
compressors or fans.
29-EN
<HWT-40, 60>
1. Remove valve cover screw.
2. Pull the valve cover downward to remove it.
Valve cover
Power wire
Hydro/outdoor
connecting wires
<HWT-80, 110>
1. Remove the service panel, and the terminal cover.
2. A conduit pipe can be installed through the hole for
wiring. If the hole size does not fit the wiring pipe to
be used, drill the hole again to an appropriate size.
3. Be sure to clamp the power wires and hydro/outdoor
connecting wires with a cord clamp along the
connecting pipe so that the wires do not touch the
compressor or discharge pipe.
(The compressor and the discharge pipe become
hot.)
Terminal cover
Service panel
– 15 –
■
Wiring between Hydro Unit and Outdoor Unit
The dashed lines show on-site wiring.
Connect the system interconnection wires to the identical terminal numbers on the terminal block of each unit.
Incorrect connection may cause a failure.
Input power
220-240 V ~, 50 Hz
Leakage circuit breaker
30 mA
For the Air to Water Heat Pump, connect a power wire with the following specifications.
Model HWT-
Power supply
Maximum running current
Recommended field fuse
Power supply wire*
Outdoor earth wire
Hydro / Outdoor connecting wires*
* Number of wire × wire size
Installation Manual
Outdoor Unit
Hydro Unit
1 1
L
2 2
N
3 3
Earth
40 60 80
220-240 V ~
50 Hz
14.6 A 20.3 A
16 A 25 A
2
2 × 2.5 mm or more
(H07 RN-F or 60245 IEC 66)
2
1 × 2.5 mm
or more
2
4 × 1.5 mm or more
(H07 RN-F or 60245 IEC 66)
110
30-EN