40
TB1: DC/AC Inverter
BU: Energy meter
E1-2-3: Electric loads
WG1: Heat pump power supply
GC1: Photovoltaic function input signal (0-10 VDC , 0-3 VDC, 4-20 mA).
7.7. Safety features
7.7.1. High pressure switch
In order to ensure that the compressor does not run beyond its operating envelope
there is a built-in high pressure switch which shuts down the compressor when the
pressure in the cooling circuit becomes too high. The pressure switch shuts down the
compressor if the pressure gets higher than 2.0 MPa.
To restart the unit, the power must be switched off and switched on again.
7.7.2. Safety breakers
In the event of a failure on the electrical immersion heater, the safety breakers will
shut down the unit. If the set value (80°C) is exceeded, the electrical immersion heater
will disconnect. The electrical immersion heater can be reactivated when the temper-
ature is below 80°C.
To do this, the power to the unit must be switched off and the front panel dismantled.
Then the reset buttons in the center of the breakers can be pressed. This must only be
performed by skilled personnel.
Morever, an additional thermal safety breaker switches off the compressor in case
the compressor surface reaches temperatures above 160°C
Summary of Contents for VANVEX R +
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