Toshiba HWT-1101F21MM3W-E, Руководство по установке

Страница: 13 / 39

– 12 –
Hydro Unit Installation Manual
Water charging - Space heating
Fill the system with water until the pressure gauge
shows the recommended pressure value of 0.15 MPa
(1.5 bar).
Release air from the system by opening the two air
relief valves (Torx 20).
Hydraulic pressure may drop when the trial run begins.
In that case, add water.
Air may enter if the charged hydraulic pressure is low.
Operate the air relief valves until no further air escapes
the system.
Water charging - Domestic water
• Open the cold water inlet to fill up the water cylinder.
Ensure also that the ball valve in the safety group
(Refer to “Fig.6-01(28)”) is open.
• Ensure that a hot water tapping point is open to
deaerate the water cylinder and the associated pipe
works.
▼ Fig.7-12
Loosen the air vent valve to release air.
Water may come out of the air vent valve.
Release the air completely from the water circuit.
Failure to do so may disable correct operation.
Air vent
Water quality
The water used must satisfy EN directive 98/83 EC.
Piping insulation
It is recommended that insulation treatment be applied
to all pipes. To perform optional cooling operation,
apply insulation treatment of 20 t or more to all pipes.
■
Electrical installation
WARNING WARNING
• Ensure electrical circuits are isolated before
commencing the electrical installation.
• The electrical installation must be completed by a
qualified electrician.
• The electrical installation must comply to all Local,
National and International electrical installation
regulations.
• This product must be earthed in accordance with
Local, National and International electrical installation
regulations.
CAUTION
• The Hydro Unit must be connected to a dedicated
power supply for the back up heater circuit.
• The electrical supply must be protected by a suitably
sized over current protection device (fuse, MCB etc)
and an earth leakage protection device.
• The Hydro Unit must be connected to the mains power
supply using a isolating switch which disconnects all
poles and has a contact separation of at least 3 mm.
• The cord clamps, attached to the Hydro Unit, must be
used to secure the electrical cables.
• Wrong connection of electrical cables may result in
electrical component failure or fire.
• Ensure the electrical cables are sized in accordance
with the installation instructions.
• 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
compressor or fans.
23-EN 24-EN