Related Manuals for Giacomini KPM22
Summary of Contents for Giacomini KPM22
- Page 1 KPM22Y001 User manual 03/2025 User Manual Electronic controller for HVAC systems...
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Page 2: Table Of Contents
Preliminary remarks ........................................... 5 DIMENSIONS AND INSTALLATION ......................................5 Dimensions and installation ........................................5 ELECTRIC CONNECTIONS ......................................... 6 KPM22 connectors and unit components ..................................... 6 CONFIGURATION ............................................11 I/O table ................................................ 11 Preliminary remarks ..........................................12 Network configuration ..........................................12 Network configuration of the LCD zone thermostats ............................... - Page 3 Installer menu ............................................. 21 Wizard ................................................21 Constructor menu ............................................21 5.10 OFF main page ............................................22 5.11 ON main page .............................................. 22 5.12 Status pages ............................................... 22 5.12.1 Line status page ........................................... 22 5.12.2 Usage point status page ........................................22 5.12.3 Status page for zones from 1 to 6 ....................................
- Page 4 Other settings ............................................. 29 6.5.1 Screed startup program ........................................29 6.5.2 Management and setting of the anti -grip periodic cycle ............................29 6.5.3 Manual operation ..........................................30 6.5.4 I/O forcing .............................................. 30 TECHNICAL DATA ............................................. 30 KPM22 Technical data ..........................................30...
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Page 5: Introduction
INTRODUCTION Preliminary remarks The KPM22 controller provides stand-alone control with no thermostat by regulating the usage points based exclusively on the board inlets, or in network control mode for up to 6 zones/thermostats with zone temperature and humidity monitoring. As an alternative, the network may consist of zones/thermostats through the K495C CANbus, or zones/thermostats through K493TW. -
Page 6: Electric Connections
- to prevent electromagnetic interferences, place the power wires as far as possible from the signal wires and connect the device to an RS-485 MODBUS network and/or a CAN network using shielded wires. KPM22 connectors and unit components Connection example. -
Page 11: Configuration
CONFIGURATION I/O table Below is the table of the KPM22 unit input/output. Analogic inlets Description MIX supply T External T Digital inlets Description Summer/winter control Block external signal Timer – ON/OFF DI6 DI11 Dehumidification Integration MIX1 – TA1 external activation signal MIX1 –... -
Page 12: Preliminary Remarks
General Parameters menu and change the Baud Rate to set the communication speed (125K recommended). All CAN units must feature the same communication speed value. When using the Giacomini Modbus controllers as thermostats, always refer to the Installer General Parameters menu to change any network ... -
Page 13: Kpm22 Controller
KPM22 CONTROLLER The unit features a graphic LCD display and 6 dedicated buttons. The keyboard features 6 buttons to browse the pages and change the values with the following meaning: UP and DOWN when changing the parameters; otherwise, it moves the cursor... - Page 14 Fix point: Set(W)/Set(S) value Climatic curve settings (W)winter/(S)summer, Min/Max Temp, Set, Offset. Selection of the number of Bus thermostats connected to the KPM22 controller: Number of zones: from 0 (no bus thermostat) to max 6 bus thermostats Type of zone: CAN(LCD)/Modbus(K493T)
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Page 15: Home Page
Possibility to customize every single zone: Name: Name of the environment where the bus thermostat in installed Setting: S+W(always enabled), S(enabled in summer only), W(enabled in winter only) Integration: S+W(always enabled), S(enabled in summer only), W(enabled in winter only) Dehumidification: Yes/No Humidity setting: Setting for dehumidification activation Int Offset: Offset (room temperature –... -
Page 16: Status Page
5.1.3 Status page - Sp: Supply pump ON - St: Screed startup active - LT: Supply low temperature signal - HT: Supply high temperature signal - LT: Supply low temperature signal - Fc: Forced pump for supply anti -freeze - Mn: Manual pump Scroll right with the RIGHT button to display the usage point and zone statuses (if configured). -
Page 17: Signal/History Menu
Signal/history menu This menu includes the controller signal functions and the history of the system signals. 5.2.1 Signal history To display the system signal history, press ENTER on “Show HISTORY”. Press ENTER on “>>>” to display the previous element. Repeat this procedure to scroll through all the history elements up to the first element entered. -
Page 18: Clock Menu
AL16 Return low return Signaling only AL17 Pump working hours signal Signaling only Block configuration based on AL18 Supply water low temperature (Winter) Pump block parameter Block configuration based on AL19 Supply water high temperature (Winter) Pump block parameter Block configuration based on AL20 Supply water low temperature (Summer) Pump block... -
Page 19: Zone Main Screen
From the main page, press ESC or wait for the 60-second timeout to return to the application main page. This level is not password protected. 5.4.1 Zone main screen Main screen to display the date, time, current time slot, temperature, humidity, external temperature, zone name and season. Press RIGHT to display the zone configuration screen. -
Page 20: Vacation Screen
Once the time slot is set, this will be active up to the next one, if any; otherwise the time slot setting will not change. Also available is a “COPY” function to copy all the time slot settings of the previous day on the edited day. Once the setting is completed, move to the SAVE icon and confirm. -
Page 21: Service Engineer Menu
Service engineer menu This is a level 2 menu, which requires a service engineer password to display/change the menu parameters. This menu displays the working hours of the usage points; it also enables to change the working mode (automatic-manual), to select the zones to be enabled, to set the Anti -grip function, to activate and display the status of the screed startup and to calibrate the probes. -
Page 22: Status Pages
5.10 OFF main page This page varies based on the reason why the unit is OFF. The unit set on Signal OFF can be turned off completely by the supervisor or by pressing the button. 5.11 ON main page The main page is displayed when the system is ON. Press ESC to return to the status main menu. - Page 23 Deactivation: if the unit is deactivated according to the protocol, the unit will switch “OFF from supervision protocol” (also indicated by the “Supervisor OFF” caption). The On/Off status activated by pressing the button has priority, the On/Off status from supervision can be enabled only when the device has been turned ON by pressing the button.
- Page 24 5.15 Summer/winter working mode The working mode can feature the following values: “S/W KEYBOARD” PARAMETER DESCRIPTION S = SUMMER Summer operation W = WINTER Winter operation There are multiple procedures to set the working mode of the PH03 system: Menu-> Installer-> Other-> PH03: By using the S/W keyboard parameter in the service menu (this function is enabled by the PH03 = - - - parameter).
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Page 25: Zone Temperature Control
Settings This chapter describes all the main settings available Stand-alone - zero zone setting In zone-free systems, the controller works only by considering its inlets according to the rules below: Summer/winter DI1 inlet. Working mode changeover. Block external signal DI2 inlet. When this signal is active, the unit is set on OFF from signal. Timer DI3 inlet. - Page 26 6.2.2 Control of the zone heating/cooling manifold The zone heating/cooling manifold is activated based on the following: 1. Winter operation: the room temperature value is below the active environment set-point – hysteresis value (thermal differential). 2. Summer operation: the room temperature value is above the active environment set-point + the hysteresis value (thermal differential). Every zone heating/cooling manifold of the system works autonomously and, once activated, generates an activation demand for the supply pump to which it is associated through the specific parameter.
- Page 27 Setting the supply temperature 6.3.1 Management of the supply pumps The pump can be controlled through the specific parameter as follows: - CONTINUOUS: the supply pump will remain permanently active with the system ON and with no blocking signals. TEMPERATURE DEMAND: the supply pump will be activated when at least one of the zone heating/cooling manifolds associated to the supply line itself requests it.
- Page 28 If the external air temperature probe is present and enabled, the control set-point is determined according to a climatic curve. If the external air temperature probe is missing or broken, the control set-point is fix and determined through a specific service parameter. The climatic curve for calculation of the set-point requires setting of the set-point, an external temperature min and max value and a variation offset of the set-point.
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Page 29: Other Settings
6.4.2 Management of the dehumidification manifold/valve The zone dehumidification manifold/valve is activated when the environment relative humidity exceeds the active environment humidity set-point + the hysteresis value (differential value). Other settings 6.5.1 Screed startup program The startup is performed with a 2-point only curve, the initial supply Tset and the final supply Tset. The user can set the ΔT for the day to define the number of days required for the screed startup phase. -
Page 30: Technical Data
(omitting possible signals). This function is active from the service engineer menu. Upon voltage restart, the forcing mode is cancelled. TECHNICAL DATA KPM22 Technical data Purpose of the command device: operational command device. - Page 31 Max lengths of the connection wires: - power supply: 100 m (328ft) - analogic inlets: 100 m (328ft) - transducer power supply: 100 m (328ft) - digital inlets: 100 m (328ft) - PWM analogic outlets: 1 m (3,280ft) - analogic outlets 0- 20 mA, 4- 20 mA and 0- 10 V: 100 m (328ft) - digital outlets (electromechanical relays): 100 m (328ft) - digital outlets (command for solid state relays): 100 m (328ft) - RS-485 MODBUS slave and RS-485 MODBUS master/slave ports: 1.000 m...
- Page 32 Drift: ≤ 30 s/month at 25 °C (77 °F) 10 inlets: - 4 with parameter configuration for PTC, NTC or Pt 1000 probes - 6 with configuration parameter for PTC, NTC, Pt 1000 probes, 0-20 mA, 4-20 mA, 0-5 V ratiometric transducers or 0-10 V.
- Page 33 0-10 V analogic outlets Inlet resistance: 1 K . Accuracy: ±3 % of the scale initial point. Resolution: - +2 %, -5 % of the scale initial point for usage points with impendance from 1 to 5 K - -± 2 % of the scale initial point for usage points with impendance > 5 K . Conversion time: 1 s.
- Page 34 A qualified installer must take all required measures, including use of Individual Protection Devices, for his and others’ safety. An improper installation may damage people, animals or objects towards which Giacomini S.p.A. may not be held liable.
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