Circulation Connection; Hot Water Production; Electrical Data; Electrical Installation - SWISSTHERM VT167 OHE Bedienungs Und Installationsanleitung Handbuch

CIRCULATION CONNECTION:

If it is not necessary for comfort reasons, or waterworks requires, there should not be set up circulation on the warm water,
as this is rather energy intensive. If circulation is made, it must be isolated well. Circulating pump must not be too large,
use any variable pump type, or use flow control valve. A circulator on a hot water conductivity of copper should never
give flow rates of 1m/sec. And, incidentally, the water supply usually will be ensured already at much lower rates. The
location of heat pump in the outlet makes it possible to avoid chalk precipitation in them. To control the circulating pump
on the hot water connection it may be useful to choose a clock or thermostat, as it is not necessary with constant operation,
but a periodic operation controlled by time or temperature. If in a situation there has to be established circulation to
maintain the current requirements under building regulations, it could be done by providing pipes with self-regulating
heating cables.

HOT WATER PRODUCTION:

Heating of domestic water can be made using the heat pump, electrical heater and / or boiler. Electrical heater and boiler
are described as supplementary heating. Energy sources are selected in the menu. They can be selected individually and 2
together, but not boiler and electrical heater together. Setpoint for operating temperature "Setpoint" and minimum
temperature "Tmin" is set.
Temperature setting range: from 5 °C to Tmax °C. Tmin and Setpoint can be set freely with each other. A normal setting
would be Tmin 35 °C and setpoint 45 °C to 55 °C. Setpoint is achieved with heat pump. If no heat pump is selected it is
achieved through supplementary heating. Tmin is achieved with heat pump and supplementary heating, if selected.
Heat pump runs with a hysteresis of +1 -3 °C around the setpoint. The supplementary heating runs with a hysteresis of
+ -1 °C. The heat pump stops when the evaporator temperature gets too low. By air defrosting the limit is -8 °C and
through bypass defrosting -18 °C. Normal operation resumes at evaporator temperature of +5 °C. Operating form appears
with lamp 3 and 4. The upper (3) is for the heat pump and the lower (4) is for supplementary heating:
• Off: Inactive (not released)
• Orange: Selected but running standby
• Green: Selected and produce hot water.

ELECTRICAL DATA

ELECTRICAL INSTALLATION:

The heat pump is equipped with a 2 metre power supply cord, 3 x 1.5 mm
electric screwed connection. The heat pump should be connected to a socket with breaker.
Power effect: see "page 4 - technical data". Wiring diagram is enclosed. The phase conductor is brown, the neutral
conductor is blue, and the earth conductor is yellow/green.
NOTE: The appliance must be installed in accordance with national wiring regulations.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified
personnel in order to avoid a hazard.
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, which is carried out on the back through an
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