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mundoclima MUAMR-H14T User And Installation Manual
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mundoclima MUAMR-H14T User And Installation Manual

mundoclima MUAMR-H14T User And Installation Manual

R290 large capacity heat pump
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R290 Large Capacity
Heat Pump
User and installation manual
MUAMR-H14T
CL45230 ~ CL45232
English
www.mundoclima.com

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Summary of Contents for mundoclima MUAMR-H14T

  • Page 1 R290 Large Capacity Heat Pump User and installation manual MUAMR-H14T CL45230 ~ CL45232 English www.mundoclima.com...
  • Page 2 For ground installation and flat roof clearance – single unit General Obstacle over the top No obstacle over the top 26-35 kW (mm) Unit height + B ≥500 ≥500 ≥100* ≥500 ≥500 ≥1000 ≥300 ≥500 * In case of cold weather, take into account of snow on the ground. For more information, refer to 5.5 In Cold Climates.
  • Page 3 Clearance between units for cascade application installation 26-35kW (mm) ≥600 ≥2500 ≥500 For the clearance in other directions, refer to the preceding diagrams. WARNING Read the safety precautions before installation.

  • Page 4: Table Of Contents

    CONTENTS 1 SAFETY PRECAUTIONS 2 GENERAL INTRODUCTION 2.1 Documentation 2.2 Validity of the Instructions 2.3 Unpacking 2.4 Accessories of the Unit 2.5 Transportation 2.6 About the Unit 3 SYSTEM DESIGN 3.1 Capacity and Load Curve 3.2 DHW Tank (Supplied by the User) 3.3 Room Thermostat (Supplied by the User) 3.4 Solar Kit for DHW Tank (Supplied by the User) 3.5 Balance Tank (Supplied by the User)
  • Page 5 8.3 Wiring 8.4 Mounting 9 COMPLETION OF INSTALLATION 10 CONFIGURATION 10.1 Check Before Configuration 10.2 Configuration 10.3 Operation Settings 11 COMMISSIONING 11.1 Test Run for the Actuator 11.2 Air Purge 11.3 Test Run 11.4 Check of the Minimum Flow Rate 12 HAND-OVER TO THE USER 12.1 Energy Saving Tips 12.2 Additional Operation Reference...

  • Page 6: Safety Precautions

    1 SAFETY PRECAUTIONS Symbols Observe the basic safety regulations before starting This symbol shows that work and operation. this appliance used a DANGER flammable refrigerant. If the refrigerant is leaked It indicates a hazard with a high level of risk which, WARNING and exposed to an if not avoided, will result in death or serious injury.
  • Page 7 adequately ventilated before breaking into the Steel pipes and components shall be system or conducting any hot work. A degree of protected against corrosion with a rustproof ventilation shall continue during the period that the coating before applying any insulation; work is carried out.

  • Page 8: Charging Procedures

    Detection of flammable refrigerants CAUTION Under no circumstances shall potential sources of An inert gas, specifically, is dry oxygen free ignition be used in the searching for or detection of nitrogen(OFN). refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.

  • Page 9: Intended Use

    a) mechanical handling equipment is available, if The recovered refrigerant shall be processed required, for handling refrigerant cylinders; according to local legislation in the correct b) all personal protective equipment is available and recovery cylinder, and the relevant waste transfer being used correctly;...

  • Page 10: Regulations To Be Observed

    Installation, commissioning, inspection, maintenance CAUTION and troubleshooting by qualified contractors and authorized installers. Permissible tools: All tools for working in the safety Intended use also covers installation in accordance with zone must be designed and explosion-protected the IP code. 　 in accordance with the applicable standards and This appliance can be used by children aged from regulations for refrigerant in safety groups A2L...
  • Page 11 DANGER DANGER Hot surfaces and fluids can result in burns or Escaping refrigerant can lead to fires and scalding. Cold surfaces may cause frostbite. explosions that result in very serious injuries or death. Prior to servicing or maintenance tasks, switch off and allow the equipment to cool down Do not drill or apply heat to a refrigerant or warm up.

  • Page 12: Installation General

    Installation Connecting cables General DANGER Be sure to use only specified accessories and parts for installation. Failure to use specified parts may result With short electrical cables, should there be in water leakage, electric shocks, fires, or the unit falling leakage in the refrigerant circuit, gaseous from its mount.
  • Page 13 Safety instructions for operating What to do if the outdoor unit ices up the system CAUTION What to do if refrigerant leaks A build-up of ice in the condensate pan and in WARNING the fan area of the outdoor unit can cause damage to the equipment.

  • Page 14: General Introduction

    Leak detection equipment should be set at a percentage of the LFL of the refrigerant and should be calibrated to be suitable for the refrigerant employed, with the appropriate percentage of gas (25% maximum) confirmed. Leak detection fluids should be suitable for most refrigerants but the use of detergents containing chlorine should be avoided as the chlorine may react with the refrigerant and corrode the copper pipes.

  • Page 15: Unpacking

    2.3 Unpacking ① ② For the accessories box, see 2.4.1 Accessories supplied with the unit for more details. 2.4 Accessories of the Unit 2.4.1 Accessories supplied with the unit Thermistor Accessories of the unit (T5, Tw2, Tbt, Tsolar)* Name Illustration Quantity Specification φ...

  • Page 16: Available Options

    2.4.2 Available options Pass the transport straps through the holes on the left and right sides of the pallet properly. Besides the standard supplied unit, all possible options of the unit can be found in Annex 5. Available accessories. No pallet under the unit: The transport straps can be fitted into foreseen sleeves 2.5 Transportation at the base frame that are made specifically for this...

  • Page 17: About The Unit

    2.6 About the Unit 2.6.1 Overview The unit applies to heating, cooling, and DHW scenarios. It can be used together with fancoil units, floor heating devices, low-temperature high-efficiency radiators, domestic hot water tanks, and solar kits. The backup heater can increase the heating capacity at extremely low ambient temperatures. It serves as a backup heating source in case of heat pump failure or freeze protection of the water piping outside in winter.
  • Page 18 Code Assembly Unit Explanation Automatically removes the remaining air from the water loop. Automatic air purge valve Expansion vessel Balances the water system’s pressure. Refrigerant gas pipe Four temperature sensors determine the water and refrigerant temperature at various Temperature sensor points in the water loop: 5.1-TW_out, and 5.2-TW_in Refrigerant liquid pipe Detects the water flow rate to protect the compressor and water pump in the event of...

  • Page 19: Inverter Module

    Explanation Order Port Stamp Explanation Order Port Stamp CN60 HEAT2 Reserved 230VAC 0~10V Output port for 0-10V 0-5VDC CN41 HEAT1 Reserved 230VAC Control port for room thermostat (heating mode) 0-5VDC CN31 CN40 OUT1 OUT1 230VAC Power port for room thermostat 0-5VDC CN62 HEAT3...
  • Page 20 Explanation Port voltage Order Port Stamp Fan drive board power supply port 19VDC EEPROM programming port 5VDC COMM Port for communication with compressor drive board(CN8) 5VDC COMM Consistent with CN1 5VDC DC fan power input port 565VDC DCFAN Fan B connection port Phase-to-phase 565VDC 5VDC Programming port...

  • Page 21: Operating Range

    Explanation Port voltage Order Port Stamp CN17 Compressor connection port U(CN17) Phase-to-phase 565VDC CN18 Compressor connection port V(CN18) Phase-to-phase 565VDC CN19 Compressor connection port W(CN19) Phase-to-phase 565VDC CN21 H-Pro Port for high pressure switch(CN21) CN27 PED module,Safety Diagnostic Module CN25 5VDC Programming port COMM...

  • Page 22: System Design

    3 SYSTEM DESIGN See 6.1.5 Requirements for third-party tanks for more information. 3.1 Capacity and Load Curve 3.3 Room Thermostat Match the load with appropriate capacity of the unit (Supplied by the User) based on the curve below. Capacity/Load The room thermostat can be connected to the unit, and it should be kept away from heating sources.

  • Page 23: Circulation Pump

    NOTE It is recommended to install an expansion vessel for the tapping water side. 3.7 Circulation Pump The relationship between the external static pressure (ESP) and the water flow rate is shown as follows: 26-35 kW Without IBH Flow rate (m ESP (kpa) 36.6 43.3...

  • Page 24: Thermistor

    NOTE Installing the valves in wrong position can damage the circulation pump. CAUTION If it is necessary to check the running status of the pump with the unit powered on, please do not touch the internal electronic control box components to avoid electric shock. 3.8 Thermistor Table 3-1 lists the temperature sensor in 2.5 Accessories and Options (the temperature sensor applied in the water loop).
  • Page 25 3.9.1 Controlled through the wired controller You can set the water temperature, room temperature, and double-zone control on the wired controller. Three options: WATER FLOW TEMP, ROOM TEMP, DOUBLE ZONE (refer to 10.3.5 Temp. type setting). Single-zone control Indoor Outdoor FHL1 FHL2 FHLn...
  • Page 26 2) The AHS is set to be valid for heating and DHW modes. In heating mode, AHS control is the same as item 1) listed above; In DHW mode, AHS will be turned on automatically when the initial domestic water temperature T5 is too low or the target domestic water temperature is too high at low ambient temperature.
  • Page 27 Space heating The ON/OFF signal, operation mode, and temperature are set on the wired controller. P_o keeps running as long asthe unit is ON for space heating whileSV1 remains OFF. The domestic water tank, AHS (auxiliary heat source), TBH (water tank electric auxiliary heat), and solar control can be connected. The control method is the same as what is described in the above section.
  • Page 28 Control through mode setting Indoor Outdoor FCU1 FCU2 FCUn FHL1 FHL2 FHLn Code Component/unit Code Component/unit Shut-off valve Main unit Drainage valve (supplied by the user) Wired Controller Collector/distributor Balance tank (supplied by the user) Bypass valve (supplied by the user) Automatic air purge valve SV2: 3-way valve (supplied by the user）...
  • Page 29 Double-zone control Indoor Outdoor RAD.1 ZONE1 RAD.2 RAD.n ZONE2 23.2 23.1 Modbus FHL1 FHL2 FHLn Code Component/unit Code Component/unit Main unit Drainage valve (supplied by the user) Wired controller Collector/distributor (supplied by the user) Balance tank (supplied by the user) Bypass valve (supplied by the user) Mixing station (supplied by the user) Automatic air purge valve...

  • Page 30: Cascade System

    3.9.3 Cascade system Component/unit Component/unit Component/unit P O: outside circulation pump TBH: domestic hot water tank (supplied by the user) booster heater Coin 1, heat exchanger for heat PS: solarpump (supplied by the user) pump Tsolar: solar temperaturesensor Coin 2, heat exchanger for solar Wired controller (optional) energy...
  • Page 31 Only the master unit (1.1) can operate in DHW mode. T5S is set on the wired controller (2). In DHW mode, SV1(3) remains ON. When the master unit operates in DHW mode, the slave units can operate in space cooling/heating mode. Heating mode of slave units All slave units can operate in space heating mode.

  • Page 32: Safety Zone

    4 SAFETY ZONE A Safety zone Corner positioning of the outdoor unit, left The refrigerant circuit in the outdoor unit contains easily flammable refrigerant in safety group A3 as described in ISO 817 and ANSI/ASHRAE Standard 34. Therefore, a safety 2400mm zone is defined in the immediate vicinity of the outdoor unit, in which special requirements apply.

  • Page 33: Installation Site

    Noise impact 5.2.2 Precautions for installation on a flat roof Select an installation site that is as far away from Only install the product in a building with a solid living rooms and bedrooms as possible. construction structure and that has cast concrete ceilings Please note the noise emissions.

  • Page 34: Unit Mounting

    Create three concrete strip foundations (4). The recommended dimensions can be found in the figure. This drain hole is covered by a rubber Make sure the three foundations are level. plug. If the small There are no restrictions on the width or length of the drain hole cannot meet the drainage foundations, provided that the unit can be mounted on...

  • Page 35: In Cold Climates

    The downpipe must flow into a sufficiently large gravel a - Outdoor unit bed so that the condensate can trickle away freely. b - Concrete strip foundations c – Foundation (See 5.3.1 Installation on a ground) NOTE d - Drain pipe (at least DN 40) e - Sewer To prevent the condensate from freezing, the f - Stench trap in an area free from frosting risks...

  • Page 36: Hydraulic Installation

    6 HYDRAULIC INSTALLATION 6.1.4 Pre-pressure adjustment of the expansion vessel 6.1 Preparations for Installation The unit is equipped with an expansion vessel of 4.5L NOTE that has a default pre-pressure of 1.5 bar. To assure proper operation of the unit, the pre-pressure of the expansion vessel needs to be adjusted.

  • Page 37: Water Loop Connection

    6.1.8 Field connection of hydraulics parts 1) Connect the Y-shaped strainer to the water inlet of the unit, and seal the connection with thread sealant. (To NOTE provide access to the Y-shaped strainer for cleaning, an extension pipe can be connected between the strainer When a 3-way valve is to be used in the water and the water inlet depending on the field conditions) loop, a ball valve is recommended to guarantee...

  • Page 38: Water

    6.3 Water Validity: Great Britain Total Checking and treating the water/filling and Water hardness at specific system volume heating supplementing water >20 l/kW output ≤20 l/kW > 50 l/kW and ≤50 l/kW Before filling or topping up the installation, check mol/ mol/ mol/...

  • Page 39: Filling Domestic Hot Water Tank With Water

    6.7 Freeze Protection NOTE 6.7.1 Protected by software During filling, it might not be possible to remove The software is equipped with specific functions to protect all air from the system. Remaining air will be the entire system from freezing by using the heat pump removed through the automatic air purge valves and the backup heater (if available).
  • Page 40 Types of glycol NOTE The types of glycol that can be used depend on whether Do NOT install freeze protection valves, if glycol the system contains a domestic hot water tank: is added to the water. Otherwise, glycol may leak from the freeze protection valves.

  • Page 41: Check Of Water Loop

    Keep dry NOTE Rotate the flow switch counterclockwise to remove it. Dry the flow switch completely. 6.8 Check of Water Loop The conditions below should be met before installation: The maximum water pressure is smaller than or equal to 3 bar. The maximum water temperature is smaller than or equal to 85°C according to safety device setting.
  • Page 42 pipe diameter Recommended flow rate m/s (DN) cl o sed system 0.5-0.6 0.6-0.7 0.7-0.9 0.8-1 0.9-1.2 1.1-1.4 1.2-1.6 1.3-1.8 1.5-2.0 1.6-2.2 1.8-2.5 1.8-2.6 1.9-2.9 1.6-2.5 1.8-2.6 open system 0.4-0.5 0.5-0.6 0.6-0.8 0.7-0.9 0.8-1.0 0.9-1.2 1.1-1.4 1.2-1.6 1.4-1.8 1.5-2.0 1.6-2.3 1.7-2.4 1.7-2.4 1.6-2.1 1.8-2.3 In the general engineering calculation, the water pipe pressure is usually 0.1 ~ 0.6MPa, and the flow rate of water in the water pipe is 1 ~ 3m/s, often 1.5m/s.

  • Page 43: Electrical Installation

    7 ELECTRICAL INSTALLATION 7.2 Precautions for Electrical Wiring DANGER WARNING Risk of electrocution. The wiring must comply with local laws and regulations. 7.1 Opening the Electrical Box Cover Follow the electrical wiring diagrams for electrical wiring (the electrical wiring diagrams To access the unit for installation and maintenance, are located on the rear side of the switch box follow the instructions below.
  • Page 44 Earth the unit properly, including the wired controller. Do not connect the unit to a utility pipe, surge protector, or telephone earth. Incomplete earthing may cause electrocution. An earth fault circuit interrupter (30 mA) must be installed to avoid electrical shock. Use 3-core shielded wires. Be sure to install the required fuses or circuit breakers.

  • Page 45: Overview Of Electrical Wiring

    7.3 Overview of Electrical Wiring The illustration below gives an overview of the required field wiring among different parts. CN66 CN31 AHS1 AHS2 1OFF 2OFF 3OFF X/HA Y/HB 14 15 16 IBH2 IBH1 C1 C1 CN11 CN30...

  • Page 46: Electrical Wiring Guidelines

    Main f ( t c i t Wired Controller Description AC/DC Required number of conductors Maximum running current Item Solar energy kit signal cable 200mA 200mA Wired Controller cable Room thermostat cable 200mA Solar pump control cable 200mA(a) Outside circulation pump control cable 200mA(a) 200mA(a) DHW pump control cable...
  • Page 47 Table 7-1 Nominal cross-sectional area (mm ) Rated current (A) Flexible cord Cable for fixed wiring 0.5 and 0.75 and 2.5 ≤ 0.75 and 1 and 2.5 > ≤ and 1.5 and 2.5 > ≤ 10 and 1.5 and 2.5 1.5 and 4 >...

  • Page 48: Tightening Torques

    Circular wiring 7.4.4 Back plate layout for wiring terminal Insulation casing Power cord Figure 7.1 : Copper wire ① For main power wiring. Proper power wiring connections ② For high voltage wiring. ③ For low voltage wiring. ④ Safety valve drain. Tightening torques Item Tightening torque (N•m)

  • Page 49: Main Power Supply

    NOTE 7.5.2 Wiring of main power supply If the current of load is smaller than 0.2 A, CAUTION load can connect to the port directly. If the load current is larger than or equal to 0.2 A, it is necessary to connect the AC contactor to the Use a round crimp-style terminal for load.
  • Page 50 7.6.2 Wiring of 3-way valves SV1, SV2 and SV3 Control signal port of hydraulic module: The CN11 NOTE contains terminals for the 3-way valve, pump, booster, and heater, etc. Connect the cable to an appropriate terminal as shown Refer to the 3.9 Typical applications for the in the figure and fix the cable reliably.
  • Page 51 Additional circulation pump P_o: SV3: 3ON 3OFF CN11 CN11 Power supply 7 5 3 1 Voltage 220-240VAC Maximum running current (A) Solar energy pump P_s: Minimum wire size (mm 0.75 Control port signal type Type 2 7.6.3 Wiring of additional pumps CN11 Zone 2 pump P_c: CN11...
  • Page 52 DHW pipe pump P_d: Voltage 220-240VAC Maximum running current (A) Minimum wire size (mm 0.75 Control port signal type Type 2 CN11 7.6.5 Wiring of tank booster heater (TBH) CN11 Power supply 7 5 3 1 Power supply Voltage 220-240VAC 7 5 3 1 Maximum running current (A) Minimum wire size (mm...
  • Page 53 7.6.6 Wiring of external IBH 7.6.7 Wiring of room thermostat (RT) Room thermostat (low voltage): "POWER IN" provides the voltage to the RT. NOTE CN11 IBH1 The room thermostat must be low-voltage. Power supply 7 5 3 1 ATCO Voltage 220-240VAC Maximum running current (A) Minimum wire size (mm...
  • Page 54 The thermostat cable can be connected in three ways (as described in the figures above) and the specific connection method depends on the application. Method A (Mode setting control) RT can control heating and cooling individually, like the controller for 4-pipe FCU. When the hydraulic module is connected with the external temperature controller, ROOM THERMOSTAT is set to MODE SET on the wired controller:...
  • Page 55 7.6.8 Wiring of solar energy input 7.6.10 Wiring of smart grid signal (low voltage) The unit has a smart grid feature, and there are two ports on the PCB to connect SG signals and EVU signals as below: CLOSE: SHUT DOWN SMART GRID 1) SG=ON, EVU=ON.

  • Page 56: Cascade Function

    7.7 Cascade Function Please use shielded wires and make sure they are well earthed. T1 T2 L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N L1 L2 L3 N H1 H2 H1 H2 H1 H2 ..Master unit Slave unit 1 Slave unit 2 Slave unit x...

  • Page 57: Connection For Other Optional Components

    Power supply Circuit breaker Manual switch Distribution Box ..7.8 Connection for Other Optional Components 7.8.1 Wiring of drainage pipe heating tape Heating tape Heating tape Heating tape The maximum power is 100W. NOTE Use tie wraps After wiring, the sleeve should be fastened with a tie wrap (accessory)

  • Page 58: Installation Of Wired Controller

    8 INSTALLATION OF WIRED CONTROLLER CAUTION The general instructions on wiring in previous chapters should be observed. The wired controller must be installed indoors and kept away from direct sunlight. Keep the wired controller away from any ignition source, flammable gas, oil, water vapor, and sulfide gas. To avoid electromagnetic disturbance, keep the wired controller at a proper distance from electric appliances, such as lamps.

  • Page 59: Mounting

    Route Bottom-side wiring out X2/ HA Lower-side Place of lower-side wire outlet wire outlet DETAIL A SCALE 2:1 Inside wall wiring (with an 86-type box) Inside wall wiring (without an 86-type box) Wall hole and wiring hole 46mm Diameter: Φ8-Φ10 60mm Wiring hole...
  • Page 60 Adjust the length of the plastic bolt in the accessory box to make it suitable for installation. Fix the wired controller’s bottom cover to the wall through the screw bar by using cross head screws. Make sure the bottom cover is set flush on the wall. Screw hole on the wall;...

  • Page 61: Completion Of Installation

    9 COMPLETION OF INSTALLATION DANGER Risk of electrocution. Risk of burning. Tightening torque 4.1 N•m 10 CONFIGURATION The unit should be configured by an authorized installer to match the installation environment (outdoor climate, installed options, etc.) and meet the user demand. Follow the instructions below for the next step.

  • Page 62: Configuration

    After powering on the unit, check the following items: Upon power-on of the unit, nothing is displayed on the wired controller: Check the following abnormalities before diagnosing possible error codes. - Wiring connection issue (power supply or communication signal). - Fuse failure on PCB. Error code “E8”...

  • Page 63: Cooling Setting

    10.2.2 Cooling setting When Room temp. is enabled, the temperature curve for the room temperature control zone is enforced, and the set temperature of the room temperature control zone Cooling setting can still be adjusted. The type of the temperature curve and the temperature offset can be set.

  • Page 64: Special Function

    10.2.12 Special function Refer to 10.2.1 DHW setting for the operation method. 1) When EnSwitchPDC is set to NON, T4_AHS_ON can be set manually. When EnSwitchPDC is set to ON, T4_AHS_ON cannot be set manually. Special function 2) When AHS function is set to NON, EnSwitchPDC is enforced to be NON.

  • Page 65: Input Definition

    10.2.15 Input definition Floor drying up Input definition 45℃ t_Drypeak M1 M2 00:00 Start time Smart grid 12-02-2023 Start date T1T2 The first line is the status indicator. Grey means it is off, and green means it is on. Refer to 10.2.1 DHW setting for the operation method. t_Dryup is the time for which the unit rises the 10.2.16 Cascade setting temperature.

  • Page 66: Operation Settings

    10.3 Operation Settings Title Code State Default Minimum Maximum Unit interval Enable or disable DHW mode: 0=NON, DHW mode 1=YES Enable or disable the disinfect mode: Disinfect 0=NON, 1=YES Enable or disable DHW priority mode: DHW priority 0=NON, 1=YES Enable or disable DHW pump mode: Pump_D 0=NON, 1=YES Enable or disable DHW priority time setting:...
  • Page 67 The refresh time of climate-related curves Hours t_T4_FRESH_H in heating mode The maximum ambient operating T4HMAX °C temperature in heating mode The minimum ambient operating T4HMIN °C temperature in heating mode The temperature difference for starting the dT1SH °C unit (T1) The temperature difference for starting the dTSH °C...
  • Page 68 Maximum set temperature of additional MAX-SETHEATER °C heating source Minimum set temperature of additional MIN-SETHEATER °C heating source The voltage corresponding to the maximum set temperature of additional MAX-SIGHEATER heating source The voltage corresponding to the minimum set temperature of additional heating MIN-SIGHEATER source Enable or disable the TBH (TANK...

  • Page 69: Commissioning

    HMI setting Choose the HMI: 0=MASTER HMI address Set the HMI address code for BMS address for BMS setting Upper computer stop bit: 1=STOP Stop BIT BIT1, 2=STOP BIT2 The time for which the compressor has run Minutes t_DELAY PUMP before startup of the pump t1_ANTILOCK The pump anti-lock interval...

  • Page 70: Air Purge

    What - Actuator List Name Note Three-way valve 2 Three-way valve 3 Pump_I Integrated pump Pump_O Outside pump Pump_C Zone 2 pump Internal backup heater Additional heat source Three-way valve 1 Invisible if DHW is disabled Pump_D Circulation pump for DHW Invisible if DHW is disabled Pump_S Solar pump...

  • Page 71: Check Of The Minimum Flow Rate

    NOTE In performance test, the target temperature is preset and cannot be changed. If the outdoor temperature is outside the range of operating temperature, the unit may not operate or may not deliver the required capacity. In circulated pump operation, If the flow rate is out of recommended flow rate range, please make proper change of the installation, and ensure that the flow rate in the installation is guaranteed in all conditions.
  • Page 72 12.2.2 Schedule What Make unit operation plans. This function is based on the current time displayed on the HMI. Make sure the time is correct. Conflicts and operation priority 1) A daily schedule and a weekly schedule can work simultaneously. 2) For all schedules, timers (if more than one) for the same zone or appliance must be different, and the operation mode of Zone 1 and Zone 2 in the same time setting must be the same.
  • Page 73 Illustration of all 8 curves Standard curve - Hea�ng 95.0 90.0 85.0 1-T1S 80.0 75.0 2-T1S 70.0 65.0 3-T1S 60.0 55.0 4-T1S 50.0 45.0 5-T1S 40.0 35.0 6-T1S 30.0 25.0 7-T1S 20.0 8-T1S ≥20 Ambient temp. For cooling (RAD – radiator application, FLH – For cooling (FCU –...

  • Page 74: Operating Parameter

    Tank heater Illustration of all 8 curves The tank heater and backup heater cannot operate simultaneously. The most recent setting is valid while the ECO - FLH previous setting becomes invalid For instance, when the backup heater is valid and running, if the tank heater is turned off, the backup heater stops running.

  • Page 75: Troubleshooting

    13 TROUBLESHOOTING This section provides useful information about diagnosing and correcting certain problems that may occur to the unit. 13.1 General Guidelines Before starting the troubleshooting procedure, visually inspect the unit and look for obvious defects such as loose connections or defective wiring. When a safety device is activated, stop the unit and find out the cause of such activation before resetting the safety device.

  • Page 76: Error Codes

    Symptom 6: Insufficient space heating capacity at low outdoor temperature. POSSIBLE CAUSE TROUBLESHOOTING • Check whether the IBH function is enabled. • Check whether the thermal protector of the backup heater has been activated. Backup heater not • Check whether the booster heater is running. The backup heater and booster heater can not activated operate simultaneously.

  • Page 77: Maintenance

    14 MAINTENANCE Verify that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or Regular checks and inspections at certain intervals are any other adverse environmental effects. Take into required to guarantee the optimal performance of the account the effects of aging or continual vibration from unit.

  • Page 78: Service Information

    15 SERVICE INFORMATION No live electrical components and wiring can be exposed during the system charging, recovery or 15.1 Label for Refrigerant purging. Presence Earth bonding should be continuous. 15.5 Repair of Sealed Components Equipment should be provided with a label stating that it has been de-commissioned and emptied of refrigerant.
  • Page 79 should be available and work properly. Hoses should be refrigeration knowledge and are competent for complete with leak-free disconnection couplings and in handling R290 refrigerant. good conditions. Before using the recovery equipment, check and verify that it works properly and has been 1) Removal and evacuation properly maintained, and that any associated electrical When breaking into the refrigerant circuit for repair or...

  • Page 80: Technical Data

    17. TECHNICAL DATA 17.1 General 3-phase 3-phase 3-phase Model 26 kW 30 kW 35 kW Nominal capacity Refer to the Technical Data Dimensions H×W×D 1816x1384x523 mm Packing 2000x1480x570 mm dimensions H×W×D Weight Net weight 260 kg Gross weight 285 kg Connections Water inlet/outlet G1 1/4"BSP...

  • Page 81: Electrical Specifications

    17.2 Electrical Specifications 26/30/35 kW Model Power Supply Standard unit Nominal Running Current See “ 7.4.1 Field wiring guidelines” Power Supply Backup heater Nominal Running Current 26-35 kW units (standard) outlet inlet Description Description Item Item DC inverter compressor Vapor-liquid separator Crankcase heater Temperature sensor (compressor suction）...

  • Page 82: Annex

    ANNEX Annex 1. Menu Structure (Wired Controller) Weekly schedule Schedule 1 Menu Mode (2) Schedule 2 Mode Heating Schedule 3 Schedule Cooling Schedule 4 Weather temp. settings Auto DHW settings (1) Holiday away Settings Current state Unit status From Error info. Until Schedule Heating mode (1)
  • Page 83 For serviceman 7 Other heating source For serviceman 1 DHW setting 7.1 IBH function 1 DHW setting 1.1 DHW mode 7.2 dT1_IBH_ON 2 Cooling setting 1.2 Disinfect 7.3 t_IBH_Delay 3 Heating setting 1.3 DHW priority 7.4 T4_IBH_ON 4 Auto mode setting 1.4 Pump_D 7.5 P_IBH1 5 Temp.

  • Page 84: Annex 2. User Settings Parameters

    Annex 2. User Settings Parameters Setting Definition Default Minimum Maximum Unit Code interval 6.1 Mode & Temperature set Operation mode setting 1=Auto, Operation mode Mode 2=Cooling, 3=Heating For FCU cooling °C Water outlet For FLH / RAD cooling °C temperature For FLH heating °C (Zone 1)
  • Page 85 Enablement 0=inactive, 1=active Schedule1 - Schedule4 /　 Schedule1 - Schedule4 Enablement 0=inactive, 1=active (if all Sunday / Monday / /　 the date is active, then display ‘Every Tuesday / Wednesday / day’) Thursday / Friday / Saturday Command1-Command4 Enablement 0=inactive, 1=active /　...
  • Page 86 For FCU cooling °C For FLH / RAD cooling °C For FLH heating °C Zone 2 holiday timer For FCU / RAD heating °C temperature -timer1-timer6 Temp. of the timer Room heating set 　 °C temperature Ta Room cooling set °C temperature Ta DHW holiday timer...
  • Page 87 Enablement 0=inactive, 1=active Temperature curve Temperature curve type 0=Standard, Temperature curve type 1=Custom Standard - Temperature Curve for FLH / RAD cooling level Curve for FCU cooling Standard - Temperature Zone 2 cooling set temperature offset of Zone 2 °C offset curve cooling...

  • Page 88: Annex 3. Modbus Mapping Table

    Annex 3. Modbus mapping table 1) MODBUS PORT COMMUNICATION SPECIFICATIONS Port: RS-485; H1 and H2 are the Modbus communication ports. Communication address: Only one-to-one connection is available for the host computer and wired controller, and the wired controller is a slave unit. The communication address of the host computer and wired controller is consistent with the address of HMI Address for BMS (In FOR SERVICEMAN mode).
  • Page 89 SALVADOR ESCODA S.A.U. ROSSELLÓ 430-432 08025 BARCELONA ESPAÑA / SPAIN www.mundoclima.com...