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Collector sensor (red cable with protective terminal box): 

Insert the sensor jacket into a 

thermowell (sensor pocket), or strap it to the collector outlet pipe (flat plat collectors) that projects 
from the collector housing.  The best practice is to install a suitable sensor pocket into a T-piece 
on the collector return outlet, to house the collector sensor. Protect sensor cable from UV and 
moisture.

  

 

Storage tank installation (white cable): 

The sensor required for the solar loop is installed 

in the lower part of the storage tank. If there is no provision for a tank sensor, it is advisable to 
push the sensor beneath the insulation  – keeping it close to the inner tank wall at the desired tank 
location.

 

 

Pool sensor installation: 

Place a heat conductive T-piece on the suction line directly at the 

pool outlet and screw in the sensor with an immersion sleeve (check corrosion resistance of the 
material used). Another possibility would be to attach the sensor at the same place with clips or 
adhesive tape, using appropriate thermal insulation against environmental influences.

 

 

Sensor cable extension: 

Sensor cables (22/4 AWG telephone cable) can be extended up 

to 150 ft. A connection between the sensor and extension can be established as follows: 
 
Cut supplied heat shrinkable tubing to desired length (about ½ ”). Slide tubing over one end of 
wire to be sliced after removing enough outer insulation to accept the tubing.  Then splice wire 
and slide tubing over the splice. Heat gently all around until tubing shrinks tight.  

 

Slide larger tubing (about ¾ “) over the entire completed splice. Heat gently all around until tubing 
shrinks tight. This connection can then be drawn gently into the pipe work. You need only two 
wires for sensor cable; the other two wires are spare wires. Do not overheat tubing! Remove heat 
as soon as tubing shrinks tight, as material will continue to shrink. With flame source, use even 
back and forth motion all around tubing.  A heat gun may be used, if available. Let tubing cool for 
maximum strength.  

 

 
 

ontroller unit installation:  

For viewing comfort, the controller unit should be 

positioned at eye level. It is always good practice to keep electronic equipment away 

from cold, and heat, as extremes of temperature may reduce the lifetime of the device. It is also 
good practice to keep electronic equipment away from heavy electrical loads, switches or 
contactors as these may cause electrical and electromagnetic interference when switched on or 
off.  

 

Base of the unit to be mounted at the eye-level and wired as shown above 

Содержание USDT 2005

Страница 1: ...l unit has the following functions 2 inputs for temperature sensors Suitable for sensors of type Thermistor and PT1000 Adjustable 70 o F to 210 o F overheating protection Adjustable 4 o F to 24 o F temperature difference delta T Manual override of pump for system testing Symbolic display of all parameters Indications of current state of pump System status and diagnostic displays Collector sensor s...

Страница 2: ...T to avoid pump cycling The pump A1 runs only when the temperature at the collector sensor location S1 is higher than the return temperature at location S2 by at least T The pump stops if T is less than the preset value or the if the temperature at location S2 storage tank has reached the TMAX A1 ON only when S1 S2 diff S2 max Boiler Control L Mode The User can switch USDT 2005 to operate a boiler...

Страница 3: ...med under voltage Switch Positions S K Solar systems with KTY 2000 ohm sensors S P Solar systems with PT 1000 1000 ohm sensors L K Boiler control with KTY 2000 ohm sensors L P Boiler control with PT 1000 1000 ohm sensors The impedance characteristics of sensors temperature dependencies are represented in the following table T 0 10 20 25 30 40 50 60 70 80 90 100 C R KTY 1630 1772 1922 2000 2080 224...

Страница 4: ...om the power supply before removing the cover Never leave the unit unattended if the cover has been removed and the power supply is connected 5 Do not exceed unit ratings of 2 15 amps 1 6 HP or 245 Watts pump 6 It is advisable to route power cables away from sensor cables ensor installation Temperature sensors may be installed in fluid lines by mounting in a tee or strapping it to the piping direc...

Страница 5: ...0 ft A connection between the sensor and extension can be established as follows Cut supplied heat shrinkable tubing to desired length about Slide tubing over one end of wire to be sliced after removing enough outer insulation to accept the tubing Then splice wire and slide tubing over the splice Heat gently all around until tubing shrinks tight Slide larger tubing about over the entire completed ...

Страница 6: ...erly grounded Flexible wires 18 3 AWG gauge conductor simplify connection to the terminals The power terminal block will accommodate wire sizes to 14 AWG All other connections should be secured and adequately tightened as loose power connections will over heat and may cause fire NOTE 3 It is important that the specified output loads 245 Watts are not exceeded Where these loads expect to exceed ext...

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