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FRENGER systems Recepto RM-270 Installation, Operation & Maintenance Manual

Mini heat recovery unit
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Recepto™ Mini Heat Recovery Unit
Frenger Systems Limited
Riverside Road, Pride Park
Derby, DE24 8HY
Frenger Systems Limited is an FTF Group Company.
Registered in England No.3064483. Registered office: 22 The Ropewalk, Nottingham, NG1 5DT. VAT Registration No. 646 6229 20
Installation, Operation &
Maintenance Manual
RM-270
Telephone
+44 (0)1332 295 678
Facsimile
E-mail
+44 (0) 1332 318 054
sales@frenger.co.uk
RM270/OM/01UK
O&M Manual
web
www.frenger.co.uk

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  • Page 1 Derby, DE24 8HY +44 (0)1332 295 678 +44 (0) 1332 318 054 sales@frenger.co.uk www.frenger.co.uk Frenger Systems Limited is an FTF Group Company. Registered in England No.3064483. Registered office: 22 The Ropewalk, Nottingham, NG1 5DT. VAT Registration No. 646 6229 20...
  • Page 2 Carefully read the following instruction booklet before starting up the machine Attention! Carefully turn off the electrical supply before removing the protections Warning! Particularly important and/or delicate operations. Operations which may be carried out by the user Interventions to be carried out exclusively by an installer or authorised technician. Always wear work gloves, safety shoes and helmet...

  • Page 3: Essential Safety Rules

    English RISK OF INJURY! - ESSENTIAL SAFETY For safety purposes, during installation, maintenance RULES and repairs, abide by the following: Do not perform any type of intervention or mainte- • Always wear work gloves, safety shoes and helmet nance without first having disconnected the power •...

  • Page 4: Machine Identification

    English - USE AND STORAGE - SCOPE OF THE MANUAL BEFORE INSTALLING THE UNIT This instruction manual is intended for the machine READ THIS MANUAL CAREFULLY user, owner and technical installer and must always be available for consultation. Residential ventilation units convey fresh air through the cross-flow heat exchanger and distribute it to The instruction manual indicates the intended use the different rooms by means of a duct distribution...
  • Page 5 DIMENSIONS...

  • Page 6: Technical Data

    English TECHNICAL DATA RM-270R Model RM-270L Length 1102 Width Height Diameter of Connections Weight Weight with packaging Maximum Flow Rate Available static pressure at maximum flow rate Reference Flow Rate Available static pressure at reference flow rate Minimum flow rate Maximum available static pressure Thermal efficiency 85.50%...

  • Page 7: Description Of Machine Components

    English DESCRIPTION OF MACHINE COMPONENTS (LEFT configuration) 1 - Unit for residential ventilation 2 - Filter class F7 (fresh air) 3 - Filter class M5 (extracted stale air) 4 - Heat exchanger 5 - Intake fan (V1) 6 - Extraction fan (V2) 7 - Extracted stale air connection 8 - Supply air connection 9 - Cable lock...

  • Page 8: Installation Of The Unit

    English INSTALLATION INSTALLATION OF THE UNIT (OPERATION CARRIED OUT EXCLUSIVELY The heat recovery unit can be installed in two ways: BY QUALIFIED PERSONNEL) • On the ceiling; • On the wall. PLEASE NOTE!: the screws for installation on the wall or ceiling are not supplied;...
  • Page 9 English - Fastening the suspension brackets (Fig. 2) The unit must be installed using the 4 suspension brackets supplied. The suspension bracket has 4 fixing holes (Fig. 2): - Holes 2 - 4 must be used on the side where the condensate drain is located (14) in order to give a minimum slope of 1% towards the drain.
  • Page 10 English - Ceiling Installation 3. Position the unit in suspension. Take into consideration a minimum slope of 1% to- 1. Install the heat recovery unit on a ceiling with a mass wards the condensate drain. of at least 200 kg/m 4.
  • Page 11 English - Condensate drain connection Connection of the condensate drain depends on the type of machine installation (standard or reverse / ceil- ing or wall). Connect the condensate drain to the domestic sewage system using a duct or pipe (siphoned). Condensate must be drained from a minimum height of 100 mm.

  • Page 12: Types Of Installation

    English TYPES OF INSTALLATION INSTALLATION OF THE UNIT HORIZONTAL LEFT SIDE VERSION 2 - Filter class F7 (fresh air) 3 - Filter class M5 (extracted stale air) 14 - Condensate drain 18 - Suspension brackets 23 - Technical compartment cover for electrical part A = Fresh air B = Supply air...
  • Page 13 English INSTALLATION OF THE UNIT HORIZONTAL RIGHT SIDE VERSION 2 - Filter class F7 (fresh air) 3 - Filter class M5 (extracted stale air) 14 - Condensate drain 18 - Suspension brackets 23 - Technical compartment cover for electrical part A = Fresh air B = Supply air C = Exhaust air...

  • Page 14: Power Board

    English POWER BOARD FAN2 Q2 Q3 FAN1 N1 - L1 FAN2 N1-L1 FAN1 N1 - L1 FC-FC C3-C3 C1-C1 DIP1 0-A0 RH1 B1 DIP2 DIP3 RH3 B3 AI1 AI2 D- D+ +12V T2 T1 RS485-A RS485-B AI1-0 AI2-0...
  • Page 15 English LEGEND: Description Notes Item N1-L1 230 Volt power terminals N1-L1_PE Electric Heater Power Supply Fuse 5x20 IN=2A 250Vac type “T” FAN 1 230 Volt Power Supply - Fan 1 FAN 2 230 Volt Power Supply - Fan 2 0-10 Volt Signal - Supply fan Extraction fan if “right”...
  • Page 16 English UNIT CONFIGURATION DIP SWITCH (DIP 1) DIP NO. DEFAULT LEFT flow config RIGHT flow config No Pre-Treatment Air Pre-Treatment Air Present If DIP2 ON and DIP7 OFF If DIP2 ON Electric Heater ON/OFF Modulating Electric Heater Hot water coil with ON/OFF valve No Post-Treatment Air Post-Treatment Air Present No Post-Cooling Air...

  • Page 17: Electrical Connections

    English ELECTRICAL CONNECTIONS General requirements • Before installing the unit, make sure that the rated supply voltage is 230V - 50 Hz. • Make sure that the electric system is suitable to supply, in addition to the operating current required by the unit, the current necessary to supply the household units and equipment already in use.
  • Page 18 English Dsplay control connection power board through the cable gland; b) fix the cable in the cable gland; Electrically connect the display control provided with the c) connect the cable to terminals 1-2-3 on the control, fol- unit as described below. lowing the sequence of numbers/colours.
  • Page 19 English Installing control on the wall...

  • Page 20: Touch Control

    English TOUCH CONTROL The MAIN SCREEN features the following op- tions: Introduction This device was designed for the control of controlled 1. The preheating icon indicates activation of Anti- mechanical ventilation units. It is suitable for ENERGY freeze Mode. SMART units. 2.
  • Page 21 English Description of the Control AUTO °F °C 7/7a 2/2a Keys: Display - Alerts and alarms • Start and Stop the machine; • Display of current time • Access Technical Menu (only authorised staff): when • Text field the unit is ON, press the keys at the same time for 5 seconds to access the menu.
  • Page 22 English 3. Use the TOUCH PAD to select the technical • COMMISSIONING menu Once the unit has been installed Press the Enter key to confirm and powered and the control has been connected, it is possible to Select the “V” symbol and confirm SET THE FAN AIR FLOW RATE.
  • Page 23 English Setting the clock and day of the week Use theTOUCH PAD to set the current day. 1. Turn the unit on from the ON/OFF key on the dis- Press “enter” to confirm. play. 2. Press the ON/OFF and “M” Menu keys at the same time to access the TECHNICAL MENU.
  • Page 24 English Setting of the weekly program There is a choice of 8 weekly programs: 4 preset programs and 4 free programs that can be modified at will. Selection of the preset weekly program: Pro- grams P1-P2-P3-P4 1. Turn on the unit at the ON/OFF key. 2.
  • Page 25 English Tables of settings for the preset weekly program - Weekly program, family with children, both parents work away from home during the day. Lunedì - Venerdì Monday - Friday GIORNO TIME 0 – 1 1 – 2 2 – 3 3 –...
  • Page 26 English Creation of the free weekly program: Programs P5-P6-P7-P8. It is possible to create 4 weekly programs at will, according to your habits and needs. Proceed as follows: 1. Turn on the unit at the ON/OFF key. 2. Press the ON/OFF and “M” Menu keys at the same time.
  • Page 27 English P ......Lunedì - Venerdì Monday - Friday GIORNO TIME 0 – 1 1 – 2 2 – 3 3 – 4 4 – 5 5 – 6 6 – 7 7 – 8 8 – 9 9 – 10 10 –...

  • Page 28: Quick Display

    English OPERATIONAL (Fig.1) PROCEDURES USER START AND STOP THE HEAT RECOVERY UNIT To turn the unit on, press the ON/OFF power key as shown in the figure to the right (Fig. 1). If there is this icon, the unit is off.
  • Page 29 English SELECTING THE OPERATING MODE ON THE CONTROL Press “M” to access the User Settings Menu (Fig.3). AUTO The following options are available: • MANUAL VENTILATION FUNCTION; • PRESET VENTILATION FUNCTIONS: - PARTY; AUTO - HOLIDAY; • - AUTOMATIC MODE; AUTO - FILTER LIFETIME RESET •...
  • Page 30 English • MANUAL VENTILATION FUNCTION; • AUTOMATIC MODE; Press "M” and scroll with the TOUCH PAD until the Available for units connected to an air quality sensor (hu- “Manual ventilation" mode starts flashing. midity or CO2) Then press “Confirm” Press "M” and scroll with the TOUCH PAD until the AUTOMATIC mode starts flashing.
  • Page 31 English or extreme heat. In these extreme conditions, the • AUTOMATIC MODE automatic mode sets the fan at minimum speed, WITH HUMIDITY SENSOR in order to isolate as much as possible the internal The fan speed is set according to the interval relating to environment from the external one and at the same the ambient relative humidity detected by the sensor.
  • Page 32 English • PARTY MODE • HOLIDAY MODE TOUCH PAD Press “M” and scroll with the until the until Press “M” and scroll with the TOUCH PAD “PARTY” “HOLIDAY” mode starts flashing. mode starts flashing. Then press “Confirm” Then press “Confirm” AUTO AUTO TInE...
  • Page 33 English SETTING THE CLOCK ACTIVATION OF AND DAY OF THE WEEK WEEKLY PROGRAM Press “M”; scroll with the wheel until the “clock” icon Press “M” ; scroll with the until TOUCH PAD starts flashing “ ”. the function “ ” starts flashing and confirm by Then press “Confirm”...
  • Page 34 English ACTIVATION OF WEEKLY PROGRAM + AUTO MODE Press “M” ; scroll with the until TOUCH PAD AUTO AUTO the “ ” function starts flashing. Then press “Confirm” Now choose the program to be set with the PAUTO TOUCH PAD. When confirmed, the chosen weekly program number is activated and the display shows the chosen program number.
  • Page 35 English FREE-COOLING MODE Press “M”; scroll with the wheel until the “FREE-COOL- ING” mode starts flashing. “Enter” Then press the key to confirm. A screen will open where you can scroll through the different logics available. There is a choice between the following different free-cooling and free-heating logics: - AUTO: the bypass damper opens automatically when free-cooling or free-heating conditions occur.

  • Page 36: Operating Logics

    English OPERATING LOGICS • ANTIFREEZE FUNCTION • BOOSTER MODE • With Integrated Modulating Electric Heater AUTO This is enabled by a remote control normally located In the event that the unit is installed in a cold climate in a bathroom or kitchen. (outdoor winter design temperature lower than -5°C), we recommend the use of versions with an electric The power board of the centralised unit receives the...
  • Page 37 English • With external modulating electric heater • With preheating Hydronic Coil or ON/OFF resistance For units not equipped with integrated electric heat- er, a duct modulating electric heater is available as As an alternative to the use of versions with the a preheating accessory.
  • Page 38 English Antifreeze protective circuit chart External Supply Exhaust air t 1 air t 2 air t 4 Switching on of antifreeze electric <-3°C <4°C heater Setpoint t4=4°C With modulating electric heater >0°C >5°C Switching off of antifreeze electric heater Valve opening or electric heater switch- DIP 3 == ON <-1°C ing on...
  • Page 39 English • FREE COOLING FUNCTION The logic is as follows: The indoor air temperature setpoints of the air con- On the User Settings Menu it is possible to enable diffe- ditioning system in winter and summer are defined rent operating logics for free-cooling and free-heating. in order to maintain conditions of comfort: The different logics are described below.
  • Page 40 English • PRE-TREATMENT FUNCTION WITH GEO- • Operation of the bypass damper is disabled. The unit THERMAL COIL always works in recovery mode. The free cooling and If a hydronic circuit with geothermal or ground water free heating logics are not activated. probes is available, it is possible to feed a hydronic •...
  • Page 41 English • AIR POST-TREATMENT The setpoints can be changed in the Par menu with the T2sth (heating setpoint) and T2stc (cooling setpoint) FUNCTION parameters. If the air supplied to the room needs to be heated or If Tpref is set as “T3”, the logics are based on the target cooled, various functions are available to supply and extraction temperatures.
  • Page 42 English • ON/OFF POST-TREATMENT DIAGRAMS HYDRONIC POST-TREATMENT - POST-COOLING WITH 230 Vac ON/OFF EXTERNAL VALVE 2-STAGE POST-HEATING - POST-HEATING WITH 230 Vac - HYDRONIC COILS ON/OFF EXTERNAL VALVE - 2 POST-HEATING STAGES WITH 230 Vac ON/OFF EX- TERNAL VALVES VALVE ACTUATORS 230Vac ON-OFF Type...
  • Page 43 English HYDRONIC POST-TREATMENT - 2 PIPES - 2-PIPE HYDRONIC POST-TREATMENT WITH 230 Vac ON/OFF EXTERNAL VALVE VALVE ACTUATOR 230Vac 230VAC ON-OFF Type POWER BOARD DIP4 = ON DIP5 = ON POST=ALL POST-TREATMENT WITH ELECTRIC HEATER AND HY- DRONIC COIL - POST-COOLING WITH 230 Vac ON/OFF EXTERNAL VALVE - POST-HEATING WITH 230 Vac ON/OFF EXTERNAL ELECTRIC HEATER (POWER ON 230Vac SIGNAL)
  • Page 44 English • MODULATING POST-TREATMENT DIAGRAMS MODULATING POST-COOLING - POST-COOLING WITH 0-10V MODULATING EXTERNAL MODULATING POST-HEATING VALVE, 230 Vac POWER SUPPLY POST-HEATING WITH 0-10V MODULATING EXTERNAL VALVE, 230 Vac POWER SUPPLY VALVE ACTUATOR VALVE 230Vac ACTUATOR MODULATING Type 21 20 230VAC 230Vac MODULATING Type 230VAC...
  • Page 45 English POST-HEATING WITH MODULATING ELECTRIC HEATER - POST-HEATING WITH MODULATING ELECTRIC HEATER. PWM SIGNAL, 230 Vac POWER SUPPLY WITH PHASE RETURN ON „Q2“ 230VAC POWER BOARD DIP4 = ON EH=POST POWER SUPPLY 230Vac MODULATING POST-HEATING - 2 STAGES - FIRST STAGE WITH MODULATING EXTERNAL ELECTRIC HEATER.

  • Page 46: Technical Menu

    English • “PAr” Parameters Menu TECHNICAL MENU 1. Turn on the unit at the ON/OFF key. This menu allows you to modify the operating pa- rameters of the unit. With the control“ON”, press “M” and On/Off simultaneously for 3 seconds. Select the “PAr”menu using the TOUCH PAD and confirm by pressing “Enter”.
  • Page 47 English “PAr” DESCRIPTION RANGE DEFAULT Minimum flow rate -108 Maximum flow rate - 270 Minimum rpm in operation 90 - 110 Maximum speed 2610 - 3190 2900 Pstd Percentage of standard modulation of nominal speed 100% - 110% 100% PbSt Percentage of boost/party modulation 110% - 130% 130%...
  • Page 48 English “PAr” DESCRIPTION RANGE DEFAULT Fixed-point post-heating setpoint temperature T2StH 10 - 50°C Visible if “Tpref” is the same as T2 Fixed-point post-cooling setpoint temperature T2StC 10 - 50°C Visible if “Tpref” is the same as T2 Ambient air conditioning post-heating setpoint temperature T3StH 10 - 50°C Visible if “Tpref”...
  • Page 49 English • FUNCTIONS BLOCK SCREEN ("Func") From the PAr Menu you can access the "Func" screen. Using the TOUCH PAD you can select which function to be inhibited from being used by the USER. The functions that can be inhibited are: - Party - Holiday - Manual...
  • Page 50 English • “Read” Menu This menu allows you to read some operating pa- rameters of the unit. With the control “ON”, press “M” and On/Off simul- °C taneously for 3 seconds. Select the “rEAd” menu using the TOUCH PAD and confirm by pressing “Enter”.
  • Page 51 English • “Read” Menu Reports The table showing the reports that may occur during the operation of the machine follows. Type of “Read” menu Description screen signal FAN max. rpm exceeded. Dirty filters earlier than countdown completion. Remaining time ----- FAN min rpm exceeded.
  • Page 52 English • “Installer” Menu The symbol flashes on the display when the installer menu is opened. Use the TOUCH PAD to choose the desired function between: 1. Turn the unit on from the “On/Off” key. - day and time setting - initial setting/configuration of fans “V”(see sec- tion “COMMISSIONING”);...

  • Page 53: Functions Configuration

    English • “ ” MENU FUNCTIONS CONFIGURATION Use the TOUCH PAD to select the “SEt” menu and confirm with “Enter” rEAd Use the TOUCH PAD to scroll through the availa- ble functions: once the desired function has been selected, confirm with “Enter” The following pages show an overview of the availa- ble functions and configurations.
  • Page 54 English • “ AInPt “ INPUT ANALOGUE • “ AOPt “ OUTPUT ANALOGUE SIGNAL CONFIGURATION SIGNAL CONFIGURATION There is a terminal AO-0 on the electronic board The electronic board can manage two 0-10V analogue that controls a 0-10V analogue output, which signals that can be connected to terminals AI1-0 and can be configured to manage pre-treatment or AI2-0.
  • Page 55 English • DRY CONTACT " C1-C1 “ • SERIAL PORT RS485-A DATA CONFIGURATION TRANSMISSION SPEED CONFIGURATION IMPORTANT!: The function is available by connecting the dry contact C1-C1 on the power Depending on the specifications of the Modbus board. supervision system that interfaces with the elec- tronic board, there are three different configu- The Dry input contact (NO ) C1-C1 enables two...

  • Page 56: User Maintenance

    English • DRY CONTACT “ EH ” USER MAINTENANCE CONFIGURATION Servicing involving the user is limited to periodi- The electronic board allows different pre-heating cally replacing the filters. or post-treatment modes to be selected with mod- ulating electric heater based on the PWM signal The unit cannot be used without filters.

  • Page 57: Installer Maintenance

    English • Check the heat exchanger RESETTING THE SERVICE LIFE OF FILTERS IN UNITS WITH T-EP REMOTE CONTROL Always disconnect the power The filters must only be replaced when indicated before accessing the unit. on the control display (icon Check the heat exchanger once every two years. Whenever unit filters...
  • Page 58 English Figure 3 and 3a ------------------------------------------------ Figure 4 ------------------------------------------------------ • Extract the damper control board “F”. • Extract the bypass damper “G” and “H”. ATTENTION!: PAY ATTENTION TO THE WIRING ATTENTION!: PAY ATTENTION TO THE WIRING AND DURING EXTRACTION. SEALS DURING EXTRACTION Fig.
  • Page 59 English • Checking the fans Figure 6--------------------------------------------------- • Extract the heat exchanger “L”. Check the fans once every two years. ATTENTION!: The heat exchanger may contain Always disconnect the power before ac- residual water. cessing the unit. • Clean the fans with a soft brush or paintbrush for fan blades “N”...
  • Page 60 English NOTE:...

  • Page 61: Schemi Elettrici

    SCHEMI ELETTRICI WIRING DIAGRAMS (configurazione STANDARD) (STANDARD configuration) LEGENDA LEGEND M1-M2 = Motore EC M1-M2 = EC motor M3 = Motore serranda primaria M3 = Primary damper motor M4 = Motore serranda secondaria M4 = Secondary damper motor B1 = Sensore di temperatura aria esterna e B1 = Outdoor air temperature and humidity umidità...
  • Page 62 SE-0771-01 270 wiring diagram...
  • Page 63 with electric heater SE-0772-01 RM-270 wiring diagram...

This manual is also suitable for:

Recepto rm-270rRecepto rm-270l

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