GH20SB – User Manual
PAGE 35
6.17.
Scheme 17 – the basic scheme with a circulation pump, allowing emergency water dump
from the heater.
Output
Device connected
O1
Collector pump P
O2
Dump valve K
O3
Circulation pump C
Sensor
Description
T1
Collector sensor (Required)
T2
Tank sensor (Required)
T3
Sensor for calculating power/energy (Optional)
T4
Tank sensor (Required)
7.
Sensor Error Alarm
The Controller checks the temperature sensors for proper connection. If a sensor is damaged,
a cable is broken or a sensor is disconnected, the Controller raises alarm for that sensor (in the event
of sensor short-circuit the Controller will nor raise alarm but indicate a temperature of 125ºC). In
the alarm condition all outputs are disconnected; additionally, when the Controller displays the
main screen, alarm is indicated by audio signal. In the alarm mode, you can browse the menu
system, configure settings, and manually control the external devices. The information which sensor
is in alarm condition is available in the main screen. The display shows “Err” instead of the
temperature next to the sensor marking. When the Controller raised sensor alarm, check the system
for proper connection and installation of the sensors.
8.
Information on Marking and Collection of Waste Electric and
Electronic Equipment
NOTE!
The symbol placed on a product or on its packaging indicates that it is
subject to selective collection of waste electric and electronic
equipment. This means that the product should not be discarded with
other household waste. Appropriate removal of old and waste electric
and electronic equipment will prevent potentially harmful effects on the
environment and human health.
The obligation of selective equipment collection rests on the user who
should deliver the equipment to a collection point.
