Thermo Technologies USDT 3000 - Manual (Page 3)

2
INSTALLATION
Note: This installation procedure is for guidance only, and the installer should verify its
suitability. Make sure that the solar/boiler system is physically installed, manually tested, and is
ready for controlled operation.
he following safety precautions are strongly recommended:
1. Before attempting to install and operate the unit read this instruction manual carefully.
2. Only suitably qualified personnel should carry out installation and any maintenance required.
3. It is recommended that the unit be connected to the power supply via a suitably 6 amps
isolating switch.
4. The unit is designed for indoor use only. It is not suitable for installation in hazardous
locations and should be protected from electromagnetic field.
5. WARNING: When the unit is connected to the 115-volt power supply and the cover is
opened, high voltage circuits will be exposed. Therefore, when installing the unit ensure
all required connections are made and the cover is attached to the controller box before
turning the power on. Ensure that all the connections are secure. If any maintenance work is
required ensure that the unit is isolated from the power supply before removing the cover.
Never leave the unit unattended if the cover has been removed and the power supply
is connected.
6. Do not exceed unit ratings of 2.15 amps (1/6 HP or 245 Watts pump).
7. It is advisable to route power cables away from sensor cables.
ensor installation: Temperature sensors may be installed in fluid lines by inserting it
into a sensor pocket or strapping it directly to the pipe. For the system to function
correctly, it is very important that the sensors are located and installed properly. The collector
sensor should be installed at the upper part (collector outlet) of the collector. If you are using a
sensor pocket, make absolutely sure that the sensors
are pushed completely into the sensor
pockets. (Sensor pockets are not supplied.) Sensors must be well insulated in order to prevent
them from being influenced by the surrounding temperature.
When sensors are used outdoors, no water should be allowed to get into the immersion sleeves
(lasting impedance change). Generally, sensors should not be exposed to moisture (e.g.
T
S