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FRENGER systems Recepto RC-1 Installation, Operation & Maintenance Manual

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Recepto™ 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
Page 1 of 63
Telephone
+44 (0)1332 295 678
Facsimile
E-mail
+44 (0) 1332 318 054
sales@frenger.co.uk
REC/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 English INDEX FUNDAMENTAL SAFETY RULES SAFETY STANDARDS AND CE LOGO GENERAL INFORMATION PROVISIONS FOR MAINTENANCE OTHER RISKS WARNING LABELS IDENTIFICATION LABEL GENERAL WARNINGS USE AND PRESERVATION OF THE MANUAL OPERATING LIMITS WASTE DISPOSAL RECEIPT OF THE UNIT, HANDLING AND START CHARACTERISTIC TECHNICAL DATA OVERALL DIMENSIONS OF THE PACKAGED UNIT LAYOUT OF THE UNIT...

  • Page 3: Fundamental Safety Rules

    English Carefully read the following FOR THE INSTALLATION: Do not install in explosive, corrosive or damp user information manual before environments, outdoors or in very dusty roo starting up the machine. Warning! Install a safety switch to turn off current to Particularly important and/or deli- the appliance in an easily accessible posi- cate operations.
  • Page 4 English FOR THE USE: FOR MAINTENANCE: Before carrying out any operation on the Some safety fundamental rules must be appliance, make sure: observed while using products with electri- 1 - The unit is disconnected from the elec- cal energy or water: trical power supply.

  • Page 5: General Information

    English SAFETY STANDARDS GENERAL INFORMATION LOGO Please do not remove the safety devices. However, if you need to remove a device (for In line with our policy of ongoing improvement, good reason), you should take immediate we always aim to provide state-of-the- measures to prevent possible hazards.

  • Page 6: Other Risks

    English PROVISIONS FOR GENERAL WARNINGS MAINTENANCE What follows is extremely important with regard to: Handling, storage, installation, The maintenance staff must observe all the maintenance, operation, servicing of the accident prevention (safety) regulations in electrical equipment, servicing of the refri- force.

  • Page 7: Operating Limits

    English USE AND PRESERVATION OPERATING LIMITS HEAT RECOVERY UNIT AND HYDRONIC OF THE MANUAL COILS: • Maximum temperature of heat vector THIS BOOKLET IS AN INTEGRAL PART fluid: max. 85°C OF THE APPLIANCE AND MUST ALWAYS • Minimum temperature of refrigerant ACCOMPANY THE UNIT.
  • Page 8 English RECEIPT OF THE UNIT, HANDLING AND START STARTING THE UNIT RECEIPT OF THE UNIT Before giving to the product the power Each product is carefully inspected before supply, check the following: shipment. Upon receipt of the goods, it is •...
  • Page 9 English Characteristic technical data RC/RF-1 RC/RF-2 RC/RF-3 RC/RF-4 odel 1150 1700 2600 Maximum supply and return air flow rate 0,20 0,32 0,47 0,72 Supply and return rated available static pressure Minimum supply and return air flow rate Thermal efficiency EU regulation 1253/14 Total thermal output recovered 14,8 Maximum recovery efficiency...
  • Page 10 English Ceiling units Hole Ø 12 mm RC-1 / RC-2 / RC-3 RC-4 Hole Ø 10 mm Condensate drain Condensate drain 3/4" male 3/4" male Ø D (male fitting with gasket) Floor units RF–1/ RF–2 / RF–3 RF–4 Ø D (male fitting with gasket) RC-2...

  • Page 11: Layout Of The Unit

    English LAYOUT OF THE UNIT SERVICE SIDE VIEW Filter. (Filter change, see "Maintenance" chapter). MAINTENANCE SIDE VIEW 1. Damper 2. Filters 3. Control board 4. Siphon connection 5. Air fan 6. Air fan 7. Heat recovery unit 8. Collection tray UNIT DRAWING Condensate drain Heat exchanger...

  • Page 12: Ceiling Installation

    English CEILING INSTALLATION FLOOR INSTALLATION RC-1 / RC-2 / RC-3 INSTALLATION ON MOUNTING FEET All the units are supplied with brackets as standard, to be used for the floor installa- tion of the unit. The Recepto heat recovery unit comes with 4 mounting brackets which can be used toge-ther with vertical threaded rods or suspen-sion chains to facilitate fixing to...

  • Page 13: Air Duct Connections

    English AIR DUCT CONNECTIONS Level the unit using the 4 feet (six for size Typical Ceiling Installation Typical Floor Installation Turning the bolt in the mounting feet rai- LEGENDA: A = Fresh air ses or lowers the corner of the unit. In this B = Supply air way, the unit can be adjusted to be made C = Exhausted air...
  • Page 14 English INVERTING THE AIR FLOWS FOR INVERTING THE FLOW: INVERT THE POSITION OF THE FILTERS F7-M6, OF CEILING UNITS THE LOCATION OF THE CONDENSATE TRAY AND THE POSITION OF DIP SWITCH 1 ON THE ELECTRONIC POWER BOARD In the case of ceiling units, the condensate tray needs to be moved in order to invert the flows.
  • Page 15 INVERTING THE AIR FLOWS FOR INVERTING THE FLOW: INVERT THE POSITION OF THE FILTERS F7-M6, OF FLOOR UNITS THE THREADED CAPSULE AND THE POSITION OF DIP SWITCH 1 ON THE ELECTRONIC POWER BOARD The floor units are equipped with two sepa- rate condensate trays for the option of inversion of the air flows.
  • Page 16 English RC/RF-1 AIRFLOW PERFORMANCE SUPPLY AND RETURN VENTILATION CIRCUITS Flow rate / Available static pressure Control Voltage Flow rate (m ELECTRICAL POWER ABSORBED SFP int by the single circuit UE 1253/14 1,80 1,65 1,50 1,35 1,20 1,05 0,90 0,75 0,60 0,45 0,30 0,15...
  • Page 17 English English RC/RF-2 AIRFLOW PERFORMANCE SUPPLY AND RETURN VENTILATION CIRCUITS Flow rate / Available static pressure 8,5V 8,5V Control Voltage Flow rate (m ELECTRICAL POWER ABSORBED SFP int by the single circuit UE 1253/14 1,90 8,5V 1,80 8,5V 1,70 1,60 1,50 1,40 1,30...
  • Page 18 English RC/RF-3 AIRFLOW PERFORMANCE SUPPLY AND RETURN VENTILATION CIRCUITS Flow rate / Available static pressure Control Voltage Flow rate (m ELECTRICAL POWER ABSORBED SFP int by the single circuit UE 1253/14 1,90 1,80 1,70 1,60 1,50 1,40 1,30 1,20 1,10 1,00 0,90 0,80...
  • Page 19 English English RC/RF-4 AIRFLOW PERFORMANCE SUPPLY AND RETURN VENTILATION CIRCUITS Flow rate / Available static pressure Control Voltage Flow rate (m ELECTRICAL POWER ABSORBED SFP int by the single circuit UE 1253/14 2,00 1,90 1,80 1,70 1,60 1,50 1,40 1,30 1,20 1,10 1,00...

  • Page 20: Thermal Performance

    English Thermal performance Internal air conditions: t = 20°C – UR = 50% TAE: 10°C TAE: 5°C TAE: 0°C TAE: -5°C TAE: -10°C ε ε ε ε ε odel kg/h kg/h kg/h kg/h kg/h 0,97 96,5 0,46 90,5 0,62 91,7 0,26 0,79 94,3...
  • Page 21 English English MAIN OPERATING LOGIC a very sunny day during which, however, the outside air temperature is quite cool, EAT = 21°C. However, with TAE>20°C, there will be no re- Antifreeze logic, electrical quest of heating supply and the fresh air helps pre-heating resistance to discharge the solar energy load picked up into the walls.

  • Page 22: Electrical Panel

    English ELECTRICAL PANEL Electrical connections The terminals in the electrical panel are used to make the electrical connections. Upstream of the unit, a disconnection switch must be provided and shall have a contact separation in all poles, providing full disconnection under overvoltage category III condition.

  • Page 23: Configuration Dip Switches

    Electronic control board – Connections DEFAULT Configuration DIP switches The electronic board is equipped with a set of 10 Dip switches for configuring the unit, i.e. the direction of use of the fans, and any accessories to be connected, such as pre- or post-air treatment coils.
  • Page 24 English Electronic control board - Legend of Connections Item Description N1 L1 Board Power Supply Input Terminal Fan 1 Power Supply Transfer Terminal Fan 2 Power Supply Transfer Terminal Internal or external modulating Electric Resistance PWM control signal, depending on the selected configuration DIP-switches. Resistance safety thermostat opening return signal.
  • Page 25 English Legend of general schemes Item Description Note Automatic circuit breaker/isolator At the customer’s expense M1-M1 Fan 1 and 2 − DP1-DP2 Differential pressure switch 1 and 2 − POWER BOARD Electronic control board − Fuse of the electronic power board −...
  • Page 26 RC/RF-1 T-EP connecting cable requirements: Max lenght: 20 m. Not possible combination of wiring with 230V high voltage cables. Possible combination of SELV wiring in AC/DC.
  • Page 27 RC/RF-2 / RC/RF-3 T-EP connecting cable requirements: Max lenght: 20 m. Not possible combination of wiring with 230V high voltage cables. Possible combination of SELV wiring in AC/DC.
  • Page 28 RC/RF-4 T-EP connecting cable requirements: Max lenght: 20 m. Not possible combination of wiring with 230V high voltage cables. Possible combination of SELV wiring in AC/DC.
  • Page 29 English ELECTRIC ANTIFREEZE COIL (to be placed on the "External air" intake duct) Electric heating coil consisting of armored elements inserted inside a galvanised she- et metal duct section with circular flanges and rubber gasket. The electric coil can be used in premises with air temperature between -20°...
  • Page 30 English Positioning probe T1 for antifreeze sensitive element in the channel and then seal the hole. control The probe cable must be taken to the elec- trical equipment and connected to Terminal When using the electric coil, BEP or a pre- T1 in the place of the standard probe heating hydronic coil, it is necessary to move mounted inside the unit.
  • Page 31 BEP resistance - Electrical connection Legenda Black Brown Orange Yellow Green Blue/light blue Purple Grey White Pink Gold Turquoise Silver GNYE Green-yellow Production wiring Connection responsibility - - - - - - of the installer...
  • Page 32 English ELECTRIC POST-HEATING COIL BER (to be placed on the "Intake air" duct) Electric heating coil consisting of armored elements inserted inside a galvanised sheet metal duct section with circular flanges and rubber gasket. The electric coil can be used in premises with air temperature between -20°...
  • Page 33 The post-heating electric coil prevents the MAINTENANCE temperature of the intake air from being too The unit is maintenance-free and requires low and ensures environmental comfort. only a periodic field test. Operation of the resistance is controlled accor- ding to the temperature of the intake air. The electrical panel can be facing upwards or sideways, at an angle of 90°...
  • Page 34 English BER resistance - Electrical connection Power Supply 230Vac 50Hz COOLING VALVE ACTUATOR 230Vac ON-OFF Type COOL Power 22 21 18 17 16 15 Board N L3 L2 L1 5 6 7 DIP4 = ON DIP5 = ON ELECTRICAL PANEL DUCT ĀC ELECTRIC HEATER SET-POINT...

  • Page 35: Water Coil

    English WATER COIL It consists of a galvanised steel structure insulated external- ly complete with circular flanges which facilitate its connection to the heat recovery unit or application to the circular duct. The interior of the section is fitted with a finned coil mounted on a special supporting frame made of galvanised sheet me- tal, expanded 3/8”...

  • Page 36: Packaging Dimensions

    English RC/RF-1 RC/RF-2 RC/RF-3 RC/RF-4 heat recovery uNIt BAE 1-2 BAE 1-2 BAE 3 BAE 4 coIl deNtIFIcatIoN 9022012 9022012 9022013 9022014 Dimensions Diameter Ø 1" 1" 1" 1" Condensate drain Ø Ø8 Ø16 Packaging dimensions RC/RF-1/-2 RC/RF-3 RC/RF-4 odel Dimensions...
  • Page 37 English English AUXILIARY SECTIONS The Recepto heat recovery units can be this is achieved by using the special Con- matched with the MAC coil section or with necting Duct. the MAC SFE section; MAC air handling section with 4 row coil – MAC The coil section is equipped with a 4-row heat exchange coil suitable to be fed with chilled water.
  • Page 38 English POST-TREATMENT COOLING MODE POST-TREATMENT 4 PIPES MODE - COOLING MODE - COOLING MODE WITH EXTERNAL ON-OFF WITH EXTERNAL ON-OFF 230Vac VALVE ACTUATOR 230Vac VALVE ACTUATOR - HEATING MODE WITH EXTERNAL ON-OFF 230Vac VALVE ACTUATOR POST-TREATMENT 2 PIPES MODE POST-TREATMENT 4 PIPES MODE (Heating mode with electric heater) - TREATING MODE WITH EXTERNAL ON-OFF 230Vac VALVE ACTUATOR...
  • Page 39 MAINTENANCE OF THE ning them appropriately at the highest and lowest points of the system. The air must WATER COIL be vented completely from the system to ensure proper operation. To check that the HYDRAULIC CONNECTIONS heater is vented completely, blow compres- FOR WATER COIL sed air in the pipes.

  • Page 40: Installation Notes

    English MAC Section with electrostatic filter – MAC-SFE SFE section is equipped with an electrostatic filter suitable for purifying air. Installation notes The MAC-SFE section can be connected to the Recepto unit using the Recepto plenum accessory. MAC-SFE Section Connecting Duct Recepto Unit Air flow Wiring diagram...
  • Page 41 English SENSOR CONDENSATE DRAIN (accessory to be installed by the Customer) SIPHON The control board of the Recepto units is The unit has a condensate drain at the designed to receive a 0-10 V signal from a bottom to which must be fixed a siphon which sensor.

  • Page 42: Maintenance

    English MAINTENANCE CLEANING THE EXCHANGER AND For normal ventilation applications, it is suf- ACCESS TO THE FILTERS FROM THE ficient to clean the inlet and outlet with a SIDE brush or water and, if necessary, a neutral detergent. If there is a lot of dirt, you may To remove the heat exchanger for cleaning, use compressed air or wash with a jet of remove the plastic caps on the panel of the...
  • Page 43 REPLACING THE FILTERS (SIDE ACCESS) Install the new filter and then close the Undo the Phillips head screws in the panels panel and secure it with the Philips screws. of the filters. Open the filter inspection hatch and take the filter out sideways. Filters dimension Table RC/RF-1 Filter, thickness 98, 285x405...

  • Page 44: Troubleshooting

    English TROUBLESHOOTING Malfunction Possible causes Corrective action Check the voltage Unit starts up with difficulty Low power supply voltage against that on the engine’s rating plate Clogged ducted system Clean the ducted system and the intake point and/or extraction points Formation of frost on the exchanger Assess the use of the preheating coil Double-check the operating point...
  • Page 45 T-EP Wall control installation...
  • Page 46 English T-EP TOUCH CONTROLLER The MAIN SCREEN features the fol- lowing options: Introduction This device was designed for the control of 1. The preheating icon indicates activation of controlled mechanical ventilation units. Antifreeze mode. It is suitable for Recepto units. 2.

  • Page 47: Overview Of The Controller

    Overview of the controller AUTO °F °C Display - Alerts and alarms Keys: • Start and Stop the machine; • Display of current time • Access Technical Menu (only authorised staff): • Text field when the unit is ON, press the keys •...
  • Page 48 English COMMISSIONING 3. The symbol flashes on the display. Press Enter to confirm Before carrying out the calibration, the fans Use the TOUCH PAD to select the symbol “V” are set to the factory speed. and confirm Before the calibration, any speed modifi- cation performed from the TOUCH PAD is Use the TOUCH PAD to select fan V1 or V2 inhibited and the word “Tab“...
  • Page 49 Example of commissioning Below is an example of selection of the machine that can help to explain calibration: The aim here is to install a primary air ventilation system with very high thermal recovery per- formance in an average-sized store. The ventilation unit is to be inserted in a 4-pipe central air conditioning system provided by the owner and used for water terminals.
  • Page 50 English • the design static pressure of the supply and return air circuits of the machine with the addition of the pressure drops due to the accessories. SUPPLY RETURN COMMENTS External system pressure losses 200 Pa 100 Pa Antifreeze electric heater 3 Pa IN THE CATALOGUE Cold Coil...
  • Page 51 Setting of the weekly program 4. Now choose the program to be set from P1 - P2 - P3 and P4 (see the schedules on There is a choice of 8 weekly programs: 4 the next page). preset programs and 4 free programs that can be modified at will.
  • Page 52 English Tables of settings for the preset weekly program Weekly Program P1 Monday - Friday TIME 0 – 1 1 – 2 2 – 3 3 – 4 4 – 5 5 – 6 6 – 7 7 – 8 8 –...
  • Page 53 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 54 English 6. After programming the first day, press “M” In the standard configuration with the “mstop=OFF” parameter, the selection to move to the next day; it is possible to of the former speed within the custo- extend the program created for the first day mized programme corresponds to the to the other days of the week (Xtend= fans stop.

  • Page 55: Operational Procedures

    OPERATIONAL PROCEDURES (Fig.1) STARTING AND STOPPING THE UNIT To turn the unit on, press the ON/OFF power key as shown in the igure to the right (Fig. 1). If this icon is present, the unit is OFF. SELECTING THE OPERATING MODE ON THE T-EP CONTROLLER Press “M”...
  • Page 56 English • MANUAL VENTILATION MODE • AUTOMATIC MODE Press "M” and scroll with the TOUCH PAD until Press "M” and scroll with the TOUCH PAD the “AUTOMATIC" mode starts flashing. until the “Manual ventilation" mode starts Then press "Confirm" flashing. Then press "Confirm"...
  • Page 57 • WEEKLY PROGRAM ACTIVATION • SETTING THE CLOCK AND DAY OF MODE THE WEEK Press "M" ; scroll with the TOUCH PAD Press "M"; scroll with the wheel until the "clock" until the mode “ P ” starts flashing and icon starts flashing ”.
  • Page 58 English AUTOMATIC FUNCTION • ANTIFREEZE FUNCTION With Electric Resistance Without Electric Resistance In the event that the unit is installed in a cold In case the unit is without an electric an- climate, we recommend the use of versions tifreeze resistance, the Recepto unit has with an electric antifreeze resistance on the pre-ventive operation logic which, below external air intake circuit.
  • Page 59 • FREE COOLING FUNCTION There can be climatic conditions during the year that make it impractical to recover heat from extracted air for treating fresh air from outside. For example, in midseason, the outdoor air temperature can be lower than the indoor air temperature due to solar and internal factors, and this tends to occur when the indoor temperature is between 22 and 26°C so there...

  • Page 60: Technical Menu

    English TECHNICAL MENU Installer menu 1. Turn on the appliance at the ON/OFF key. The symbol flashes on the display when the installer menu is open; Use the TOUCH PAD to choose the desired function between: - day and time setting - setting/initial configuration of the fans “V”;...
  • Page 61 “PAr” parameters menu This menu allows you to modify the operating parameters of the appliance. With the controller “ON”, press “M” and ON/ OFF simultaneously for 3 seconds. Select the "PAr" menu using the TOUCH PAD and confirm with “Enter”. Select the parameter to be changed using the TOUCH PAD and confirm with "Enter".
  • Page 62 English “Read” menu °C This menu allows you to read some the operating °C parameters of the appliance With the controller “ON”, press “M” and ON/ OFF simultaneously for 3 seconds. Select the "rEAd" menu using the TOUCH °C PAD and confirm with “Enter”. Select the parameter to be read using the TOUCH PAD.
  • Page 63 ALARMS Below is a table for troubleshooting the faults that may occur during operation of the machine. Type Flashing Time Description of Fault Notes/Solution of Alert LED DL3 General Alarm. Present in case of any fault. It is recommended to enter the Read FAN thermal contact.

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