Bosch BSS250E-2 Installation And User Manual page 36

The sensors are the only way the SolaStat-Eco can efficiently control and protect the system.
1. The 10m ROOF Sensor.
The „ROOF‟ sensor is best fitted into a metal immersion „pocket‟ just inside the solar collector
in the hot water outlet
the lining of the „pocket‟. Sensor should be sealed with neutral cure sealant and externally
lagged, also the cable should be insulated from the bare pipe. Heat transfer compound is
available from your distributor.
2. The 2m INLET Sensor.
If Topout is required; The „INLET‟ sensor is best fitted into a metal immersion „pocket‟ near
the middle of the hot water tank. Caution should be exercised to allow for stratification of hot
water in the tank. For Topout Adjustable Value we recommend a conservative value
somewhat lower than the hot water tank manufacturer‟s maximum temperature. If Topout is
not required then the „INLET‟ sensor is best fitted into a metal immersion „pocket‟ near the
bottom of the hot water tank. Liberally apply heat transfer compound between the sensor and
the lining of the pocket‟. If a „pocket‟ is not available then bond the sensor against the metal
wall of the tank (not the outside cladding or insulation) using thermal transfer compound
between the tank and sensor.
Warning
1. Sensors must not be immersed in water.
2. It is recommended that sensor leads be kept 300mm away from mains and comms cables.
3. Ensure the correct sensors are mounted in the correct place.
4. Failure to properly mount the „Inlet‟ sensor as prescribed in the method above can result in;
a. The system may not operate at greatest efficiency.
b. There may be inaccurate „Topout‟ sensing.HWC or other components may get
damaged.
5. Failure to correctly mount the „Roof‟ sensor as prescribed in the method above can result in;
a. The system may not operate at greatest efficiency.
b. Failure to detect Frost conditions. Panel can burst.
SolaStat-Eco Operation.
Pump station.
The pump station is wired direct to the SolaStat-Eco. If replacing the pump it should be the
correct type of pump for domestic solar hot water circulation and not exceed the horse power
(hp) rating as specified on the label on the side of the enclosure.
Power Up.
Before you connect the power;
1. Read safety instructions, warnings and limit of liability before proceeding.
pipe. Liberally apply heat transfer compound between the sensor and
36