CALEFFI Altecnic SATK22 Series Installation, Operation & Maintenance Instructions Manual Download | Manualshive

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Caleffi group

SATK22

heat interface unit

Installation Operation & Maintenance Instructions

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Summary of Contents for Altecnic SATK22 Series

Page 1: ...Caleffi group SATK22 heat interface unit Installation Operation Maintenance Instructions ...

Page 2: ...user interface 11 Commissioning 10 Remote user interface quick guide 12 Heating functions 13 DHW functions 15 Primary ﬂow rate limitations 17 Circulator curves and settings 18 Auxiliary microswitch 19 Modbus 20 Safety and alarms 21 Electric circuit board and connections 22 Maintenance 23 Fault ﬁnding 26 Check List 27 Safety Instructions SATK22 Function The SATK22 HIU allows independent control of ...

Page 3: ...supply ﬁrst Do not use devices with automatic or time reset or which may be reset accidentally 4 Use suitable automatic protection devices in compliance with current legislation 5 The device must always be earthed before it is connected to the electric supply If the device has to be removed always disconnect the earth connection after disconnecting the electric supply Check that the earth connecti...

Page 4: ...ure loss on primary circuit 0 5 bar Max differential pressure 6 bar Domestic water circuit max flow rate 24 l min 0 4 l s Min flow rate to activate domestic flow sensor 2 0 l min 0 3 Power supply 230 V ac 10 50 Hz Max power consumption 80 W SATK2230 20W Protection class IP 40 Pump UPM3 15 70 Actuator stepper 24 V Probes NTC 10 kΩ Safety relief valve setting 3 bar Safety thermostat STK2210 55 C 3 8...

Page 5: ...mperature probe 13 Safety thermostat 14 Secondary drain cock mesh strainer 15 Pump 16 Flow meter turbine sensor 17 Mesh strainer 18 Heating exchanger primary drain 19 DHW temperature probe 20 DHW heat exchanger 21 Connection for M10 x 1 heat meter flow probe 22 Thermal safety solenoid valve normally closed 23 Thermal safety valve actuator 24 Water hammer arrester 25 Heat exchanger primary circuit ...

Page 6: ...ol valve 11 Mesh strainer F pressure port 12 8 connection for DPCV code 789122 13 Secondary drain cock mesh strainer 14 Pump 15 Spool piece 16 Flow meter turbine sensor 17 Mesh strainer 18 Heating exchanger primary drain 19 DHW temperature probe 20 DHW heat exchanger 21 Connection for M10 x 1 heat meter flow probe 22 Water hammer arrester 23 Heat exchanger primary circuit air vent only included in...

Page 7: ...onment or similar therefore it cannot be installed or used outdoors i e in areas directly exposed to the weather Outdoor installation may cause malfunctioning and hazards If the appliance is enclosed inside or between cabinets sufﬁcient space must be provided for routine maintenance procedures It is NOT recommended to place electrical devices underneath the HIU as they may become damaged in the ev...

Page 8: ... HIU follow this instruction below Using the mounting bracket as a template mark the position of the holes required to secure the HIU to the wall Ensure the mounting bracket is horizontal In order to facilitate these operations a manual bypass ﬂushing valve is available code 789110 Connections at the bottom Connections at the top Connections at the bottom ...

Page 9: ...pe To tighten the nuts apply maximum tightening torque of 25 Nm taking account of the recommendations of the heat meter manufacturer Install the ﬂow probe in the M10 pocket B Please refer to the heat meter technical data sheets for further information Electrical Installation Connecting to the electricity supply The HIU is supplied with an electric supply cable which is not ﬁtted with a plug The ap...

Page 10: ...frame the one that is not used for routing the electric supply cable see ﬁgure 2 All these lines can be routed through a single dedicated raceway separate from the 230 V electric cable one and anyway separate from any other live cables Remote user interface connection The HIU user interface has the dual function of control device and room thermostat The remote user interface can be installed on co...

Page 11: ... heating system proceed with charging the system to the design pressure Once these procedures are complete vent the system and check the pressure again repeat the ﬁlling process if necessary N B during the procedures for venting draining the system use suitable measures to avoid the risk of any liquid dripping onto the electronic components Once these procedures are complete vent the system and ch...

Page 12: ...rrent time and comfort function Press the set key repeatedly to set the current time set point temperatures and comfort function The value can be modiﬁed by turning knob R OFF DHW only summer mode Heating DHW winter mode mode DHW ON OFF Heating ON OFF set Current time date Set point temperature k outside temperature compensation day night Daytime night time setting temp Temperature display ambient...

Page 13: ...e Access to the technical parameters Technical parameter t00 To exit the menu wait a few seconds or press the reset key Re enable the required services using the mode key Refer to the remote control user manual for the hourly programming of space heating and DHW comfort function Temperature display Press the temp key repeatedly to display the current ambient temperature set point and the temperatu...

Page 14: ...pened gradually until the set point temperature is reached in SATK2230 and SATK2240 the valve is open fully up to the maximum allowed if the return temperature is lower than or equal to the set limit value In case this condition is not met in HIUs with control of the ﬂow temp SATK2210 and SATK2220 the ﬂow temperature is reduced by a maximum of 15 C in SATK2220 and maximum 3 C in SATK2210 in order ...

Page 15: ...valves When the function is enabled the display shows the symbol OPTIONAL SETTING weather compensation technical parameter t01 3 When the function is enabled the ﬂow temperature is calculated based on the temperature detected by the outside probe optional in accordance with the curve shown below The k coefﬁcient can be changed by pressing SET button until the related setting appears The display sh...

Page 16: ...to the DHW set point value if the return temperature is less than or equal to the set limit If this condition is not met the ﬂow temperature is reduced by a maximum of 7 C down to a temperature that can be no less than 40 C in order to bring return temperature within the limit values Due to the activation of the return temperature limitation function the DHW temperature can be lower than the set v...

Page 17: ...t function it is possible to manage DHW recirculation using a similar logic During periods when the domestic water cycle is not used if the DHW probe detects a temperature 10 C below the SET value by means of an auxiliary microswitch see page 17 the regulator closes the circuit supplying the circulation pump not supplied generating a DHW cycle lasting for a pre set amount of time This amount of ti...

Page 18: ...circuit that connects the primary ﬂow to the secondary ﬂow is shown in the graphs Primary ﬂow rate limitation in DHW mode DEFAULT SETTING no limitation technical parameter t04 100 Likewise you can establish a limit to the primary ﬂow rate that can be tapped for instantaneous DHW production The ﬂow rate limitation is imposed by controlling the maximum opening of the primary circuit modulating valve...

Page 19: ...to the adjacent ﬁgure Having identiﬁed the required characteristic head ﬂow rate chart shown below wait for about ten seconds for the setting to be accepted by the circulator which will then revert to the sequence of LEDs showing power consumption A long press of the front key 10 seconds locks the pump setting preventing possible incorrect modiﬁcations of the curve Unlocking can be done in the sam...

Page 20: ...function The contact must be closed both if DHW tapping is in progress and if activation of the comfort function is requested pre heating or recirculation Parameter t05 must be set to 1 4 5 Closing of the microswitch is shown on the user interface by the symbols shown alongside N B if the DHW recirculation function is enabled with t02 1 see page 16 the auxiliary microswitch intervention logic desc...

Page 21: ...nce with this requirement becomes even more signiﬁcant the more extensive the RS 485 network If alternatively a shielded wire is used the shield must be connected solely on the master side As a guideline take account of the following general prescriptions to ensure optimal transmission quality use a BUS cable with impedance of around 120 Ohm connect a terminal resistor having same impedance as the...

Page 22: ... and the modulating valve is completely closed After the user has removed the block imposed by the safety thermostat operation can only be re enabled when the modulating valves are completely closed again This means that if a domestic water cycle is in progress the activation of the shut off valve will be postponed until the end of that domestic water cycle Corrective action To restore the operati...

Page 23: ...ces When this condition occurs the user interface display shows error E80 IMPORTANT The connection is volt free Do not connect powered contacts If the controller that manages the pre paid service supplies a powered contact a relay must be interposed Auxiliary contact To implement the functions described on page 19 and for the connection of the DHW recirculation pump see page 16 IMPORTANT Max volta...

Page 24: ...C or lower is recommended With the primary circuit at working temperature check that the DHW ﬂow rate at the correct temperature is sufﬁcient Summary of the technical parameters Here follows a summary of the meaning and possible settings of the technical parameters Parameter Meaning Setting t00 Not used t01 Heating ﬂow temperature control 0 ﬁxed set point 1 ﬁxed set point with RTL 2 compensated on...

Page 25: ...e unit using the drain cocks provided Exchanger replacement As a preliminary step remove the ﬂow sensor refer to replacing the DHW priority ﬂow meter and position it where it cannot be reached by any dripping liquid Remove the exchanger loosening the 2 hex socket head screws ﬁxing it in place A Replace the exchanger and the O rings Tighten the two ﬁxing screws A after having checked that the O rin...

Page 26: ...rect direction Reconnect the connector Replacing the valve obturator Extract the ﬁxing clip D and then the actuator Position the new actuator E Insert the ﬁxing clip respecting the correct direction Reconnect the connector Replacing the DHW priority ﬂow switch Disconnect the ﬂow meter cable acting on the connector Extract the ﬂow sensor G Position the new sensor Re connect the connector respecting...

Page 27: ...return temperature set point disable the function primary circuit strainer of HIU clogged call qualiﬁed personnel to have it serviced exchanger partly clogged call qualiﬁed personnel to have it serviced modulating valve actuator faulty call qualiﬁed personnel to have it replaced modulating valve actuator connector disconnected re connect actuator connector DHW temperature probe cable inverted with...

Page 28: ...aced pump cable not connected restore connection possible system shut off valves terminals closed open the valves centralised system temperature insufﬁcient contact person in charge of system electronic controller not working call qualiﬁed personnel to have it replaced primary circuit ﬂow rate insufﬁcient contact person in charge of system centralised system not working contact person in charge of...

Page 29: ...dbus if required been carried out 13 Has the remote user interface been conﬁgured for installation on board thermostat function disabled inside the apartment with thermostat function enabled 14 Have the heating DHW and comfort functions if required been activated 15 Have the heating and DHW set points been conﬁgured correctly when applicable 16 Have the optional functions return temperature limita...

Page 30: ...ffi group Altecnic Ltd Mustang Drive Stafford Staffordshire ST16 1GW T 44 0 1785 218200 E sales altecnic co uk Registered in England No 2095101 altecnic co uk IOM 106 23 02 18 E O E Altecnic Limited 2018 ALTECNIC ...

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