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FRENGER systems Recepto RM-170 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-170
Telephone
+44 (0)1332 295 678
Facsimile
E-mail
+44 (0) 1332 318 054
sales@frenger.co.uk
RM170/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 RULES For safety purposes, during installation, maintenance and repairs, abide by the following: It is dangerous to touch the unit with parts of your • Always wear work gloves. body wet and with bare feet. •...

  • 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 English DIMENSIONS 1125 Ø125 1100...

  • Page 6: Technical Data

    English TECHNICAL DATA Model RM-170 Length 1100 Width Height Diameter of Connections DN125 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 at flow rate of reference...
  • Page 7 English DESCRIPTION OF MACHINE COMPONENTS (STANDARD configuration) 1 - Unit for residential ventilation 2 - Filter class F7 (fresh air) 3 - Filter class M5 (extracted stale air) 4 - Electric heating element (accessory) 4a - Housing compartment for electric resistance (accessory) inverse ma- chine version 5 - Heat exchanger...

  • Page 8: Installation Of The Unit

    English INSTALLATION INSTALLATION OF THE UNIT (OPERATION CARRIED OUT EXCLUSIVELY - Fastening the suspension brackets BY QUALIFIED PERSONNEL) (Fig. 1) Attention!: Installation of the unit for residential ventilation must only be carried out by qualified personnel to avoid damage or injury. Attention!: To protect the system against filth and humidity, all the openings must remain closed until commissioning, for example using...

  • Page 9: Ceiling Installation

    English - Ceiling Installation 3. Position the unit in suspension. Take into consideration a minimum incline of 2% to- 1. Install the heat recovery unit on a ceiling with a mass of wards the condensate drain. at least 200 kg/m 4.

  • Page 10: Condensate Drain Connection

    English - Condensate drain connection Connection of the condensate drain depends on the type of machine installation (standard or inverse / 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 11: Types Of Installation

    English TYPES OF INSTALLATION INSTALLATION OF THE STANDARD HORIZONTAL (RH) UNIT 2 - Filter class F7 (fresh air) 3 - Filter class M5 (extracted stale air) 4 - Electric Resistance (If Applicable) 5 - Heat exchanger 6/7 - Heat exchanger pressure connections Supply air 8/9 - Heat exchanger pressure...
  • Page 12 English INSTALLATION OF THE Follow the instructions below to invert “INVERSE” HORIZONTAL (LH) UNIT the unit 2 - Filter class F7 (fresh air) 3 - Filter class M5 (extracted stale air) 4 - Electric Resistance (If Applicable) 5 - Heat exchanger 6/7 - Heat exchanger pressure connections Extraction flow...
  • Page 13 English TRANSFORMATION 3. Swap the filters: remove the cover (A), the closing cap (B) and pull the filters (C) and (D) out; FROM “INVERSE” TO STANDARD Standard The connections can be swapped to allow for flexible instal- lation of the units for residential ventilation. The difference in the connections regards the posi- tion of the air connections, of the filters and of the condensate drain and RH humidity sensor.
  • Page 14 English 5. Move the humidity sensor : 6. Connect the humidity sensor : a) After swapping them and changing the shanks a) Access the electric compartment; remove the „A“ labels, the humidity sensor is now on the Fresh Air connector from the IAQ terminal on the power board shank.

  • Page 15: 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 equipment already in use.

  • Page 16: Power Board

    English POWER BOARD FAN2 FAN1 N1 - L1 FAN2 FAN1 230VAC T.Type FC-FC DIP1 C3-C3 C2-C2 C1-C1 DIP2 CONTROL RS485 RH-CO2 CONTROL RS485 RH-CO2...
  • Page 17 English LEGEND: Description Notes Item N1-L1 230 Volt power terminals Fuse 5x20 FAN 1 230 Volt Power Supply - Fan 1 FAN 2 230 Volt Power Supply - Fan 2 0-10 Volt Signal - Fan 1 Fan 2 with “inverse” configuration 0-10 Volt Signal - Fan 2 Fan 1 with “inverse”...
  • Page 18 English Display controller connection Electrically connect the display controller provided with a)connect the cable to the “CONTROL” connector on the the unit as described below. power board through the cable gland; Perform the connection to position the controller, respect- b) fix the cable in the cable gland; ing the sequence of the terminal numbers: c) connect the cable to terminals 1-2-3 on the controller, Use a 3x0.5 mm...
  • Page 19 English Installing controller on the wall...

  • Page 20: Touch Controller

    English TOUCH CONTROLLER The MAIN SCREEN features the following options: 1. Activation of the Weekly Program Introduction This unit was designed for the remote control of 2. The preheating icon indicates activation of con-trolled mechanical ventilation units. It is Antifreeze mode. suitable for RM-170 units.

  • Page 21: Description Of The Controller

    English Description of the Controller AUTO °F °C 7/7a 2/2a Display - Alerts and alarms Keys: • 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 •...

  • Page 22: Standard Version

    English COMMISSIONING 4. Turn on the unit at the ON/OFF key on the display. Once the unit has been installed and powered and the display controller has been connected, it needs to be commissioned. FOLLOW THE PROCEDURE FOR THE MACHINE VERSION CHOSEN: STANDARD OR INVERSE.
  • Page 23 English Change the voltage value relative to the fan speed Now proceed with connection of the differential pressure switch to connections 3 and 4. using the TOUCH PAD until the differential pressure gauge displays a value equal to the value of the objective pressure drop shown on the display.
  • Page 24 English 5. Press the ON/OFF and “M” Menu keys at the INVERSE VERSION same time to access the TECHNICAL MENU. Setting of air flow rate based on fan rpm. 1. Use a screwdriver to remove the heat exchanger panel cover. 2.
  • Page 25 English Now proceed with connection of the differential Setting the clock and day of the week pressure switch to connections 1 and 2. 1. Turn on the unit at the ON/OFF key on the display. 2. Press the ON/OFF and “M” Menu keys at the same time to access the TECHNICAL MENU.
  • Page 26 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: Programs P1-P2-P3-P4 1. Turn on the unit at the ON/OFF key. 2.
  • Page 27 English Tables of settings for the preset weekly program - Weekly program, family with children, both parents work away from home during the day. Monday – Friday TIME 0 – 1 1 – 2 2 – 3 3 – 4 4 –...
  • Page 28 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 appliance at the ON/OFF key. 2. Press the ON/OFF and “M” Menu keys at the same time.
  • Page 29 English P ......Monday - Friday TIME 0 – 1 1 – 2 2 – 3 3 – 4 4 – 5 5 – 6 6 – 7 7 – 8 8 – 9 9 – 10 10 – 11 11 –...

  • Page 30: Operational Procedures

    English OPERATIONAL PROCEDURES (Fig. 1) 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 this icon is pres- ent, the unit is off. SELECTING THE OPERATING MODE AUTO ON THE CONTROLLER...
  • Page 31 English • MANUAL VENTILATION FUNCTION; • AUTOMATIC MODE; Press "M” and scroll with the TOUCH PAD until the Press "M” and scroll with the TOUCH PAD until the AUTOMATIC mode starts flashing. “Manual ventilation" mode starts flashing. Then press “Confirm” Then press “Confirm”...
  • Page 32 English • AUTOMATIC MODE WITH If, however, the poor comfort conditions persist, then it will mean that the low or high humidity is not due SENSOR to extraordinary and temporary events, but depends The variable flow rate control based on the CO on harsh weather conditions, such as winter frost or detected acts according to fixed parameters, extreme heat.
  • Page 33 English • HOLIDAY MODE ACTIVATION OF WEEKLY PROGRAM Press "M” and scroll with the TOUCH PAD until the “HOLIDAY” mode starts flashing. Press “M” ; scroll with the until TOUCH PAD Then press “Confirm” the function “ ” starts flashing and confirm by pressing “Confirm”...

  • Page 34: Supplementary Functions

    English SUPPLEMENTARY FUNCTIONS SETTING THE CLOCK AND THE DAY OF THE WEEK • BOOSTER MODE Press “M”; scroll with the wheel until the “clock” This is enabled by a remote control normally lo- cated in a bathroom or kitchen. icon starts flashing “ ”.
  • Page 35 English • ANTIFREEZE FUNCTION • With external modulating electric heater For units not equipped with integrated electric • With Electric Resistance resistance, a duct modulating electric resistance is In the event that the unit is installed in a cold climate available as a preheating accessory.
  • Page 36 English Antifreeze protective circuit chart External Supply Exhaust air t air t air t Switching on of anti-freeze electric heater <-3°C <4°C Setpoint t4 = 4°C With modulating electric heater >0°C >7°C Switching off of anti-freeze electric heater <-1°C Valve opening or electric heater switching on DIP 3 == ON With hydronic coil equipped with 2-way valve or on/off electric heater...
  • Page 37 English • FREE COOLING FUNCTION There can be climatic conditions during the year The system is controlled on the basis of a logic that make it impractical to recover heat from subject to the feedback of the integrated tem- extracted air for treating fresh air from outside. perature probes.
  • Page 38 English • Pre-Treatment Function with Geothermal Coil • SUMMER MODE Summer mode is a strong air change cycle, which is If a hydronic circuit with geothermal or ground enabled when "Flush" parameter is switched on into water probes is available, it is possible to feed a "Par Menu".

  • Page 39: Technical Menu

    English TECHNICAL MENU • 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 on the unit at the ON/OFF key. - day and time setting - initial setting/configuration of fans “V”(see sec- tion “COMMISSIONING”);...
  • Page 40 English • “PAr” Parameters Menu This menu allows you to modify the operating pa- rameters of the unit. With the controller “ON”, press “M” and On/Off simul- taneously for 3 seconds. Select the “PAr”menu using the TOUCH PAD and confirm by pressing “Enter”. Select the parameter to be changed using the TOUCH PAD and confirm by pressing “Enter”.
  • Page 41 English • FUNCTIONS BLOCK SCREEN ("Func") From the PAr Menu you can access the "Func" screen. Using the TOUCH PAD you can select the function to be inhibited from being used by the USER. The functions that can be inhibited are: - Manual - Party - Holiday...
  • Page 42 English • “Read” Menu °C This menu allows you to read some operating parameters of the unit. With the controller “ON”, press “M” and On/Off simultaneously for 3 seconds. °C Select the “rEAd” menu using the TOUCH PAD and confirm by pressing “Enter”. Select the parameter to be read using the TOUCH PAD.
  • Page 43 English • "Read" Menu Reports The table showing the reports that may occur during the operation of the machine follows. "Read" menu Type of signal Description screen FAN max. rpm exceeded.. Filters earlier than countdown completion.. To turn the display off, you must turn the unit Remaining time- ---- off and on again.

  • Page 44: User Maintenance

    English USER MAINTENANCE In case the filters need to be changed before the timer deadline, it is in any case possible to reset the countdown “ ” at any moments by following the just described procedure. Servicing involving the user is limited to periodi- cally replacing the filters.

  • Page 45: Installer Maintenance

    English INSTALLER MAINTENANCE • Turn from “1” to “2” the heat exchanger block cam (A). • Remove the cover (B) • Extract the heat exchanger (C) The following maintenance interventions must only be carried out by the installer or by qualified personnel: •...
  • Page 46 English • Checking the fans Check the fans once every two years. Always disconnect power before accessing the unit. • Remove the heat exchanger and the filters, as described in the previous chapters. • Clean the fans with a soft brush for the fan blades and use a vacuum cleaner (D) to remove dust.

  • Page 47: Wiring Diagrams

    WIRING DIAGRAMS (STANDARD configuration) LEGEND M1-M2 = EC motor M3 = Primary damper motor M4 = Secondary damper motor B1 = Outdoor air temperature probe B2 = Supply air temperature probe B3 = Extracted stale air temperature probe B4 = Exhaust air temperature probe B5-B6 = Electric resistance safety thermostats B7 = Humidity sensor B8 = Pressure transducer...
  • Page 48 SE-0573-01 - RM-170 wiring diagram GNYE GNYE FAN1 FAN2 T.Type GNYE GNYE 0 D- D+...
  • Page 49 SE-0573-02 Wiring diagram with pre-heating coil...

  • Page 50: Additional Wiring Diagrams

    Additional wiring diagrams CARBON DIOXIDE (CO2) REMOTE SENSOR Interface diagram...

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