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KEY UMS-4PS Operation Manual

Universal weather–compensating controller
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OPERATION MANUAL
UMS-4PS
UNIVERSAL WEATHER–COMPENSATING CONTROLLER
Version HC22

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Summary of Contents for KEY UMS-4PS

  • Page 1 OPERATION MANUAL UMS-4PS UNIVERSAL WEATHER–COMPENSATING CONTROLLER Version HC22...

  • Page 3: Operation

    The construction of the device makes it possible to connect parallelly any given number of UMS-4PS controllers which means that one boiler or central unit may be connected independently to many central heating systems.
  • Page 4 Picture 1. Front panel of UMS-4PS. The operation of the controller boils down to setting threshold temperatures WINTER/SUMMER and the value of the decrease in temperature. Controlling the servomotor of the mixing valve and the central heating pump is obtained automatically on the basis of the temperatures and service parameters set by a fitter.
  • Page 5 Table 1 contains the list of all parameters of the user. The first column includes examples of display indications, the next columns: description of a given parameter, minimum and maximum set value, jump of the value while being set and the last column contains the default values set by the producer.
  • Page 6 3.5 Temperature threshold [LL10] / [LH18]. In order to eliminate the influence of the frequent changes in outside temperature on the work of the UMS-4PS controller, a possibility of programming the threshold temperatures for changing to WINTER mode ([LL10]) and SUMMER mode ([LH18]) has been implemented.
  • Page 7 parameter. To make a selection, use the (+, -) buttons. In order to confirm new settings you should use the OK button; then the regulator enables the user to select the next parameter. Pressing the (*) button during edition will cancel the introduced change. Exiting the default settings follows automatically 60 seconds after the recent use of the button or selecting and confirming [End] option.
  • Page 8 The temperature of the installation water needed for maintaining constant room temperature depends mainly on the outside temperature and thermal characteristics of the given building. The UMS-4PS unit enables the user to set the adequate inclination and change the weather characteristics. The relation between the outside temperature (or averaged outside temperature), the set parameters and the programmed water temperature of central heating system is shown in picture 2.
  • Page 9 The ratio of the weather characteristics inclination [cF40] – the parameter determines the temperature of water in the central heating system when it is 0°C outside. In the graph (picture 2) the relation between the outside temperature and the temperature of water in the central heating system for ten examples of parameter settings [cF ] has been shown.
  • Page 10 Mixing valve shift duration [cn--] – the parameter defines the time necessary for mo- ving the mixing valve between the side positions when the continuous control pulse is on. When the value of the parameter is different from ”--”, the controller starts to count the control pulses duration.

  • Page 11: Additional Features

    UMP/UMS inputs directly. 5.2 Central heating turn-off input. Closing 7-8 contacts of UMS-4PS unit will turn off the central heating system. The unit will close the mixing valve (as in SUMMER mode), however it will not turn off the central heating pump (as in WINTER mode).

  • Page 12: Technical Specification

    When several units of a system are connected parallelly, you need to take care of proper supply of power to the sensors while disconnecting the UMS-4PS equipped with jumpers at sensor inputs. This can be obtained by placing jumpers at one of the remaining units.
  • Page 13 Picture 3. UMS-4PS controller and boiler configuration scheme.

  • Page 15: Declaration Of Conformity

    DECLARATION OF CONFORMITY Manufacturer:Przedsiębiorstwo Wielobranżowe KEY 11-200 Bartoszyce, ul. Bohaterów Warszawy 67 hereby declares that the product: UMS–4PS is in conformity with provisions of the following directives: 2006/95 / EC (LDV) of 12.12.2006r. on the harmonization laws of the Member States of the EU relating to equipment Electrical for use within certain limits, voltage, 2004/108 / EC (EMC) of 15.12.2004r.
  • Page 16 Manufacturer: P.W. KEY 11-200 Bartoszyce, ul. Bohaterów Warszawy 67 tel. (89) 763 50 50, fax. (89) 763 50 51 www.pwkey.pl e-mail: pwkey@onet.pl...