Instruction/ maintenance manual of the product USDT2004 Thermo Products
Go to page of 14
USDT 2004 Installation and User’s Guide Introduction General Information 2 Installation 3 Collector Sensor 3 Control Box 5 Power Connection 6 Display Window 6 Operation Basic Operation (Factory Sett.
2 Introduction Note: The information supplied in this manual is for guidance only - no part of this may be used for any agreement, whether express or implied, or to form any contract. Thermo Technologies reserves the right to change specifications without prior notice.
3 INSTALLATION Note: This installation procedure is for guidance only, and the installer should verify its suitability. Make sure that the solar system is physically installed, manually tested, and ready for controlled operation. he following sa fety precautions are strongly recommended: 1.
4 strap the sensor to the collector outl et pipe or the absorber (flat plate collectors) that projects from the collector housing. Ideally, house the collector sensor (encased in a suitable sensor pocket) into a T - piece on the collector return outlet.
5 Undo the screw at the top of the housing. The control electronics are mounted on the enclosure cover. The controller enclosure can be screwed to the wall with cable entry grommets pointed downwards. Use the supplied plastic bridges to secure pow er and sensor cables.
6 ower Connections: A small blade screwdriver may be used to fasten miniaturized terminal block screws while the corresponding wire is inse rted. NOTE 1: Always disconnect the controller from power supply before opening the housing. NOTE 2: The controller should be properly grounded.
7 Use selection keys ïð during normal system operation to display the desired parameter: T1 xxx Collector temperature in o F T2 xxx Tank temperature in o F T3 xxx Reading of the third sensor; if the.
8 RUV X.X – This display shows the software revision number. NR O – This is PROGRAM 0 which indicates simple operation of unit as a U niversal S olar D ifferential T emperature ( USDT ) controller. Change this value to 1 ( NR 1 ) for activation of the third sensor or puls e flow meter input (PROGRAM 1) .
9 symbol while the pump is running. User can switch to manual mode by pressing ò k ey. By pressing ð key while centerline blinks, a hand symbol G in lower line shows manual operation. Pressing ð one more time lets you turn the pump ON or OFF . By pressing ñ key you change the pump operation.
10 max = 2 Pump runs again below this set point (T3) Energy calculation mode (PROGRAM 1) : USDT 2004 computes the energy production as a function of the temperature diff erential and fluid volume. In addition, the system anti - freeze (Glycol) percentage should be entered as it affects the thermal conductivity and heat transfer rate.
11 START Starts pump at pre - set insolation (solar radiation intensity) ALARM Enables/Disables protection functions BTU Energy calculation and setting ensor Designation – USD T 2004 accepts two different sensor types or a reference value . User can program a constant reference temperature instead of a sensor output.
12 circulation pump runs when the collector temperature is below a programmable minimum temperature, shown by = symbol. The pump stops as soon as the temperature in the solar loop reaches a safe region programmed by the ? symbol. This feature is also disabled at the factory by entering - 4 o F.
13 2 OPEN Disconnection in sensor 2 wiring OK System operates normal NO CIRC r T is more than 108 o F in last 30 minutes OK CIRC Pump is running CLEAR Clears NO CIRC display after correction nergy calculation - Energy gain is calculated by obtaining the temperature increase of heat transfer fluid across the solar collector.
14 T roubleshooting In general, all of the settings in the menus Par and Men and the terminal should f irst be checked if there is a malfunction. Malfunction, but "realistic" temperature values: • Check program number. • Check the switch - on and switch - off thresholds and the set differential temperatures.
An important point after buying a device Thermo Products USDT2004 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Thermo Products USDT2004 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Thermo Products USDT2004 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Thermo Products USDT2004 you will learn all the available features of the product, as well as information on its operation. The information that you get Thermo Products USDT2004 will certainly help you make a decision on the purchase.
If you already are a holder of Thermo Products USDT2004, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Thermo Products USDT2004.
However, one of the most important roles played by the user manual is to help in solving problems with Thermo Products USDT2004. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Thermo Products USDT2004 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
