Fujitsu UTW-SCBYA Installation And Operating Manual

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Document n° 1395-1 ~ 09/02/2010
EN
FR
IT
NL
DE
Control Box
UTW-SCBYA
Installation and
operating manual
intended for professionals
To be saved for
future consultation
Fujitsu General
(Euro) GmbH
Werftstrasse 20
40549 Düsseldorf - Germany
Subject to modifications without notice.
Non contractual document.

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  Summary of Contents for Fujitsu UTW-SCBYA

  • Page 1 Document n° 1395-1 ~ 09/02/2010 Control Box UTW-SCBYA Installation and operating manual intended for professionals To be saved for future consultation Fujitsu General (Euro) GmbH Werftstrasse 20 40549 Düsseldorf - Germany Subject to modifications without notice. Non contractual document.
  • Page 2 Control Box Complies with: - Low voltage directive 73/23/CEE, under standard EN 60335-1. - Electromagnetic compatibility Diretive 89/336/CEE - 2 - Installation and operating manual "1395 - EN"...
  • Page 3: Table Of Contents

    Control Box Contents Description of the unit Designation ..... . 4 Specifications ..... 4 Package .
  • Page 4: Description Of The Unit

    References of heat pump Monobloc heat pump Control Box Model Output Code WPYA080LA 8 kW UTW-SCBYA WPYA100LA 10 kW Optional equipment Outdoor sensor QAC34 • DHW kit (UTW-KDWXA) - for connecting a DHW tank (with built-in electrical backups). • Boiler connection kit (UTW-KBSXA) - for connecting a boiler to the heat pump.
  • Page 5: Description

    Control Box Description 172,2 436,4 Front view Side view Back view figure 3 - Dimensions in mm Legend : Start/stop switch. Regulator. User interface. Terminal blocks. Interface and power card. DHW power relay. figure 4 - Control box components Installation and operating manual "1395 - EN" - 5 -...
  • Page 6: Operating Principle

    Control Box Operating principle • Domestic hot water (DHW) operating principle The regulation controls the internal temperature based on the outdoor temperature measurement Two domestic hot water (DHW) temperatures can be and governed by the temperature control. The room parametered : nominal temperature (line 1610 to 50 °C) thermostat (optional) provides a corrective action for the and reduced temperature (line 1612 to 25 °C).
  • Page 7: Installation Instructions

    Control Box 2 Installation instructions Installation Ø 6 mm 300 mm * 2 screws included ** plugs not included figure 6 - Installing the box figure 5 - Access 2 1 1 Installation of the control box 2 1 3 Room thermostat (option) Install at a place that can withstand the weight of the Consult the fitting instructions on the packaging.
  • Page 8: Dhw Sensor (Option)

    Control Box 2 1 5 DHW sensor If the installation is equipped with a DHW tank (with electric back-up) : - Place the domestic hot water sensor in the housing for the cylinder sensors. - Connect the domestic hot water sensor to terminal BX1 and M (see figure green / yellow...
  • Page 9: Electrical Connections

    Control Box Electrical connections 2 2 1 Electrical connections on the control box side The electrical installation must be conducted in accordance with the prevailing regulations. • Make the connections in accordance with the The electrical connections must only be made when all diagram figure the other fitting operations have been completed (fixing,...
  • Page 10: Start-Up

    Control Box Start-up Configuring room thermostat - Ensure that the startup switch of the control box To configure the room thermostat and connect it to the is set to 0. appropriate heating zone : - Close the installation's main circuit breaker. - Hold down the presence key for more than 3 seconds.
  • Page 11 Control Box  Installation and operating manual "1395 - EN" - 11 -...
  • Page 12: User Interface, Room Control Unit (Option) And Room Thermostat (Option)

    Control Box 3 Regulation system User interface, room control unit (option) and room thermostat (option) Auto RESET figure 9 - User interface of the control box Auto Auto °C figure 10 - Room control unit (option) figure 11 - Room thermostat (option) - 12 - Installation and operating manual "1395 - EN"...
  • Page 13 Control Box Ref. Function - Definitions Selecting the DHW operating mode - If the installation is fitted with a DHW tank. (Domestic hot water) - On : Production of DHW according to the time program. - Off : No domestic hot water heating, anti-frost function is active. - Manual start button : Hold down the DHW key for 3 seconds (Switch from Marche "reduced"...
  • Page 14: Setting The Slope Of Heating

    Control Box Setting the slope of heating 3 2 1 Temperature control 3 2 3 Self-adaptation The heat pump's operation is subject to the temperature When this function is active (parameter 726), the control. temperature control is automatically adjusted; it is therefore futile to modify the slope or the off-set in the The set temperature for the water in the heating circuit temperature control (parameters 720 and 721).
  • Page 15 Control Box Heating curve slope ° C 2,25 Classic temperature radiator 1,75 1,25 Boiler connection application temperature Heat pump application only radiator 0,75 Floor heating system 0,25 ° C Outdoor temperature °C figure 12 - Heating curve slope (line 720) Heating curve slope Pente loi d'eau +4,5...
  • Page 16: Parametering The Setting

    Control Box Parametering the setting 3 3 2 Setting parameters - Choose the desired level. 3 3 1 General - Scroll the menu list. Only the parameters accessible to levels : - Choose the desired menu. U - End user. - Scroll the function lines.
  • Page 17 Control Box Line Function Setting range or display Setting Basic setting increment Operation HCP (domestic hot water pump command, output QX2) Commonly with Commonly with HC1 or Independent (if independent, see timer program 3 / HCP) Software version (Display) Heating time programme, circuit 1 Pre-selection (Day / Week) Mon-Sun Mon-Sun Mon-Fri Sat-Sun Monday Tuesday…...
  • Page 18 Control Box Line Function Setting range or display Setting Basic setting increment Holidays, heating circuit 1 Preselection Period 1 to 8 Period 1 Start (Day / Month) 01.01... 31.12 End (Day / Month) 01.01... 31.12 Operating level (during the holidays) Frost protection, Reduced Frost protection...
  • Page 19 Control Box Line Function Setting range or display Setting Basic setting increment Floor curing function (figure - Off : Early interruption of the current programme, programme inactive - Functional heating - Curing heating - Functional heating + curing heating - Curing heating + functional heating - Manually Manual mode enables you to programme your own concrete slab drying time.The function ends automatically after 25 days.
  • Page 20 Control Box Line Function Setting range or display Setting Basic setting increment Cooling circuit 1 Operating mode Off, Automatic Comfort cooling setpoint 17... 40 °C 0,5 °C 24 °C Release 24h/day, Time program HC, Time Time program 5 / Cooling program 5 If the installation is fitted with a DHW tank, set the parameter 907 to "Time program 5 / Cooling"...
  • Page 21 Control Box Line Function Setting range or display Setting Basic setting increment Flow temp setp min OT 25°C 6... 35 °C 0,5 °C 18 °C The lowest starting temperature for cooling for an outdoor temperature of 25 °C. Flow temp setp min OT 35°C 6...
  • Page 22 Control Box Line Function Setting range or display Setting Basic setting increment Domestic Hot Water (Only with the DHW kit option) 1610 Nominal setpoint Reduced setting (line 1612)… 50 °C to 65 °C The backup electrical system is required to reach this level. 1612 Reduced setpoint 8 °C...
  • Page 23 Control Box Line Function Setting range or display Setting Basic setting increment Additional generator (Boiler connection) 3700 Release under outdoor temperature --, -50... 50 °C 0,5 °C 2 °C 3705 Overrun time 0... 120 min 1 min 3720 Switching integral (for boiler relief) 0...
  • Page 24 Control Box Line Function Setting range or display Setting Basic setting increment 6800 History 1 Time, Date, Error code 6802 History 2 Time, Date, Error code 6804 History 3 Time, Date, Error code 6806 History 4 Time, Date, Error code 6808 History 5 Time, Date, Error code...
  • Page 25 Control Box Line Function Setting range or display Setting Basic setting increment 7710 Output (Ux) test --, 0... 100% 7711 Voltage (Ux) value 0... 10 Volt 7720 Digital outputs test No test 0 = No test 1 = Everything is on STOP 2 = Digital output DO1 3 = Digital output DO2 7721...
  • Page 26 Control Box Line Function Setting range or display Setting Basic setting increment Diagnostics heat generation 8402 Electrical resistance flow 1 Off, On Electric back-up for the heat pump is not equiped in the heat pump. 8403 Electrical resistance flow 2 Off, On Electric back-up for the heat pump is not equiped in the heat pump.
  • Page 27 Control Box Line Function Setting range or display Setting Basic setting increment 8830 DHW (domestic hot water) temperature 0... 140 °C DHW temperature setpoint 5... 80 °C 50 °C 8840 Time counter DHW pump 0... 2730 h 8841 Start counter DHW pump 0...
  • Page 28 Control Box 4 Configuring the installation All kits must be connected in of the house as shown on the figures (page 30, 31, 32 and 33). " optional boiler connection kit " optional DHW kit The connection of an oil or gas boiler to the heat pump DHW tank control (with electrical back-up) requires requires the installation of the boiler connection kit.
  • Page 29: Configuration 1, 2, 5 Or 7

    Control Box Configuration 1, 2, 5 or 7 : Parameter 5700 Configuration 1 : 1 heating circuit (see page 30). Configuration 2 : 1 heating circuit and DHW tank (see page 31). Configuration 5 : Boiler connection and 1 heating circuit (see page 32).
  • Page 30 Control Box Configuration 1 : " See detailed 1 heating circuit instructions on page 28 Overall hydraulic layout Overview of all the electrical connections Legend CC - Heating circulation pump CA - Room control unit or Room thermostat (option) CR - Regulation Control Box SE - Outdoor sensor R - Radiators (or fan convectors) SP - Heated floor thermal safety fuse...
  • Page 31 Control Box Configuration 2 : " See detailed 1 heating circuit and DHW tank instructions on page 28 Overall hydraulic layout Overview of all the electrical connections Legend R - Radiators (or fan convectors) AE - Electric back-up CA - Room control unit or Room thermostat (option) CAR - Non-return valve SE - Outdoor sensor CC - Heating circulation pump...
  • Page 32 Control Box Configuration 5 : " See detailed Boiler connection and 1 heating circuit instructions on page 28 Overall hydraulic layout Ex : boiler unit Ex : boiler unit Overview of all the electrical connections Legend SE - Outdoor sensor BD - Disconnection bottle SDR - Boiler connection valve flow sensor CR - Regulation Control Box...
  • Page 33 Control Box Configuration 7 : " See detailed Boiler connection, 1 heating circuit and DHW tank instructions on page 28 Overall hydraulic layout Ex : boiler unit Ex : boiler unit Overview of all the electrical connections Legend CR - Regulation Control Box SDR - Boiler connection valve flow sensor AE - Electric back-up SSa - DHW sensor...
  • Page 34 Control Box 5 Electrical wiring diagram H1 H3 DO1 DO2 M BX4 BX5 UX U Connections to regulator, accessories and options (see figure 8, page QX5 QX6 QX7 Start/stop switch Connections to terminals (see figure 7, page KECS figure 20 - Electrical wiring of Control Box (except installer's connections) - 34 - Installation and operating manual "1395 - EN"...
  • Page 35: Faults Displayed On The Control Box

    Control Box 6 Troubleshooting The display shows the "Bell" symbol Depending on whether the fault comes from the hydraulic circuit or refrigerant circuit, the fault may be indicated by the digital display or the diode on the heat Press the Info key for more details on the origin pump.
  • Page 36: Start-Up

    Control Box 7 Quick-start procedure Before switching on the control box : • Check the electric wiring. • Check the pressure of the hydraulic circuit (1-2 bar), check that the heat pump is purged, and the rest of the installation. Start-up - Turn ON the start/stop switch.
  • Page 37: Starting-Up

    Control Box 7 2 2 Starting-up • Switching On (see chapiter "Star-up" page 10). Non compliant Switching On. Initialisation for a few seconds. Operation of the pumps. Outdoor unit starts after 3 mins. • Heat pump checks Non compliant Value Operation of fan(s), compressor.
  • Page 38: Settings Sheet

    Control Box Settings sheet Setting Description Set to. Menus Setting Description Set to. Menus Preliminary settings Boiler backup language 3700 OT.switch-on authoris. operator section addit. gen. hour / minutes time & date 3705 swith-off delay addit. gen. day / month time &...
  • Page 39: Start-Up Data Sheet

    Control Box Start-up data sheet Site Installer serial No. serial No. Heat pump Control box model model Refrigerant type Refrigerant charge Checks Operating voltage & current on outdoor unit Compliance with positioning distances Condensate evacuation correct Electric connections / connections tightnees No GAS leaks (unit ID No.
  • Page 40 Control Box 8 Instructions for the user Emphasise that a heated floor has significant inertia Explain to the user how his installation operates, in and that therefore any adjustments must be made particular the functions of the room thermostat and the progressively.