CIAT Ereba He Series Instruction Manual
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CIAT Ereba He Series Instruction Manual

CIAT Ereba He Series Instruction Manual

Inverter reversible air-to-water heat pumps
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10195
05 - 2019
Instruction
manual

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Summary of Contents for CIAT Ereba He Series

  • Page 1 10195 05 - 2019 Instruction manual...

  • Page 2: Table Of Contents

    CONTENTS ACRONYMS AND LEGEND .................5 Acronyms ........................5 Control Configuration Legend ..................5 Standard installation Legend ...................6 1 - INTRODUCTION ....................7 1.1 - Introduction ......................7 1.2 - Safety........................7 1.3 - Preliminary checks ....................13 1.4 - Dimensions and clearance for EREBA He units ............14 1.5 - Physical data and electrical data of EREBA He units ..........16 1.6 - Accessories ......................18 2 - INSTALLATION OF UNIT ................19...
  • Page 3 CONTENTS 5 - MAINTENANCE ....................75 5.1 - Standard maintenance ....................75 5.2 - Tightening torques for the main electrical connections ...........77 5.3 - Air heat exchanger ....................77 5.4 - Water heat exchanger maintenance ................77 5.5 - Unit maintenance ....................77 5.6 - Refrigerant volume ....................77 5.7 - Characteristics of R-410A ..................78 6 - ALARM DESCRIPTION ..................79 6.1 - Inverter board alarm codes (only for 11-15 kW 1Ph or 3Ph units) ......79...
  • Page 4 FIGURES CONTENT Figure 1: Transport configuration ..................19 Figure 2: Offloading configuration ...................19 Figure 3 : How to remove front panel for 11 & 15 kW units ..........20 Figure 4 : How to remove front panel for 5 & 7 kW units ..........20 Figure 5 : Opening cable knockouts ................21 Figure 6: Water connection on unit ..................23 Figure 7: Typical diagram of the hydraulic circuit with the hydraulic module ....24...

  • Page 5: Acronyms And Legend

    ACRONYMS AND LEGEND Acronyms Indoor Air Temperature BPHE Brazed Plate Heat Exchanger CHWS Chiller Water System Domestic Hot Water Electric Heater Stage Entering Water Temperature Fan Coil Unit Leaving Water Temperature New Hydraulic Control (refer to wiring diagram 'Main control card') Outdoor Air Temperature Pulse Modulating Valve Space Heating / Cooling Control...

  • Page 6: Standard Installation Legend

    ACRONYMS AND LEGEND Standard installation Legend Label Symbol Designation Notes Device Field supplied Accessory Field mounted Option Factory mounted Field supplied Balancing valve Balancing to adjust the water flow rate Stop valve Field supplied Field supplied Automatic Air vent Automatic air vent(s) on highest position in the loop Field supplied Additional expansion tank depending the total water in the Add EXP-T...

  • Page 7: Introduction

    1 - INTRODUCTION This appliance can be used by children 1.1 - Introduction aged from 8 years and above and Prior to the initial start-up of the EREBA persons with reduced physical, sensory or He units, the people involved should be mental capabilities or lack of experience thoroughly familiar with these instructions and knowledge if they have been given...
  • Page 8 1 - INTRODUCTION Control: components are given on the nameplate or in the required documentation, supplied with When the unit is subjected to fire, the the products. fluid may then be decomposed into toxic residues when subjected to the flame : The units are intended to be stored and - Stay away from the unit.
  • Page 9 1 - INTRODUCTION Repair: protective clothing. Any repair or modification of a pressure Never work on a unit that is still energized. vessel is prohibited. Never work on any of the electrical Only the replacement of the vessel by components, until the general power supply an original part from the manufacturer is to the unit has been cut.
  • Page 10 1 - INTRODUCTION It is recommended to install an 6. The gas recovery for recycling, indicating device to show if part of the regeneration or destruction is at refrigerant has leaked from the valve. customer charge. The presence of oil at the outlet orifice 7.
  • Page 11 1 - INTRODUCTION - Test protocols 1.2.4 - Repair safety considerations - Recommissioning of the equipment. All installation parts must be maintained by Consult Service for this type of test. The the personnel in charge to avoid deterioration manufacturer mentions here only the principle and injury.
  • Page 12 1 - INTRODUCTION Do not siphon refrigerant. Be sure pressure is at 0 kPa and that the unit has been shut-down and de-energised Avoid spilling liquid refrigerant on skin before removing components or opening a or splashing it into the eyes. Use safety circuit.

  • Page 13: Preliminary Checks

    1 - INTRODUCTION 1.3 - Preliminary checks only original replacement parts for any repair or component Check equipment received: replacement. Consult the list of ● Inspect the unit for damage or missing replacement parts that corresponds parts. If damage is detected, or if shipment to the specification of the original is incomplete, immediately file a claim with the shipping company.

  • Page 14: Dimensions And Clearance For Ereba He Units

    1 - INTRODUCTION 1.4 - Dimensions and clearance for EREBA He units 1.4.1 - Dimensions and location of hydraulic connections EREBA He masse (kg) 5_1Ph 7_1Ph 11_1Ph 1363 15_1Ph 1363 11_3Ph 1363 15_3Ph 1363 NOTE : Dimensions are given in mm EREBA He EN-14...
  • Page 15 1 - INTRODUCTION 1.4.2 - Clearances to ensure the correct air flow The picture presents the minimal distances of the wall to ensure the correct air flow on air heat exchanger 1000 (1) Anticipate different maintenance actions before to place the unit (access of different parts / opening of panel/ part replacement…) EREBA He EN-15...

  • Page 16: Physical Data And Electrical Data Of Ereba He Units

    1 - INTRODUCTION 1.5 - Physical data and electrical data of EREBA He units 1.5.1 - Physical data EREBA He EREBA He 5 (1Ph) 7 (1Ph) 11 (1Ph) 15 (1Ph) 11 (3Ph) 15 (3Ph) Sound levels Standard unit Sound power level dB(A) Sound pressure level at 10 m dB(A)
  • Page 17 1 - INTRODUCTION 1.5.3 - Inside view Electrical box 5 - 7 kW unit (1 Ph) 11 - 15 kW unit (1 Ph) 11 - 15 kW unit (3 Ph) EREBA He EN-17...

  • Page 18: Accessories

    1 - INTRODUCTION 1.6 - Accessories Accessories Reference Description Advantages Utilisation Tubes are used to decoupling hydraulic circuits Reduces vibration transmission to hydraulic Hydraulic tubes 7187601 EREBA He and the units installation Cushion installed under the unit to avoid Rubber cushion 7447060 Reduces vibration transmission EREBA He...

  • Page 19: Installation Of Unit

    2 - INSTALLATION OF UNIT 2.1 - General 2.2.2 - Placing the unit To install an unit EREBA He the following In case of extra-high units the machine steps are requested environment must permit easy access for maintenance operations. 1. Place the unit Always refer to §...

  • Page 20: Figure 3 : How To Remove Front Panel For 11 & 15 Kw Units

    2 - INSTALLATION OF UNIT ● OAT sensor, located on the coil, should Never push or lever on any of the not be exposed to the sun or other heat enclosure panels of the unit. Only sources. the base of the unit frame is designed to withstand such stresses.

  • Page 21: Water Connections

    2 - INSTALLATION OF UNIT Figure 5 : Opening cable knockouts ● Verify the instructions and directives to prevent the deliberate removal of refrigerant gases. ● Verify the installation of connections. ● Verify the supports and fixing elements (materials, routing and connection). ●...
  • Page 22 2 - INSTALLATION OF UNIT ● Cl Chloride ions are detrimental for The use of units in an open loop is copper with a risk of perforations by forbidden. corrosion by puncture. If possible keep 2.3.1 - Operating precautions and below 10 mg/l.

  • Page 23: Figure 6: Water Connection On Unit

    2 - INSTALLATION OF UNIT The plate heat exchanger can foul up quickly pressures). at the initial unit start-up, as it complements The products that may be added for thermal the filter function, and the unit operation will insulation of the containers during the be impaired (reduced water flow rate due to water piping connection procedure must be increased pressure drop).

  • Page 24: Figure 7: Typical Diagram Of The Hydraulic Circuit With The Hydraulic Module

    2 - INSTALLATION OF UNIT 2.3.3 - Minimum water loop volume 2.3.4 - Maximum water loop volume The minimum water loop volume, in litres, is Units with hydraulic module incorporate an given by the following formula: expansion tank that limits the water loop volume.

  • Page 25: Figure 8: Hydraulic Module Equipped With Variable Speed Single Pump Low Available Pressure

    2 - INSTALLATION OF UNIT Figure 8: Hydraulic module equipped with variable speed single pump low available pressure with expansion tank Hydraulic module 5 & 7 kW units 11 & 15 kW units Legend: a Automatic purge valve b Flow switch c Safety valve outlet d Leaving water temperature probe e Circulation pump...

  • Page 26: Electrical Connections

    2 - INSTALLATION OF UNIT 2.4 - Electrical connections 2.4.2 - Recommended wire sections Please refer to the certified wiring drawings, Wire sizing is the responsibility of the installer, supplied with the unit. and depends on the characteristics and regulations applicable to each installation 2.4.1 - Power supply site.

  • Page 27: Table 1: Minimum And Maximum Wire Section (Per Phase) For Connection To Ereba He

    2 - INSTALLATION OF UNIT Table 1: Minimum and maximum wire section (per phase) for connection to EREBA He units Max. connectable Calculation favourable case: Calculation unfavourable case: section - Conductors in conduits or multi-conductor cables - Suspended aerial lines (standardised routing No. 17) in closed conduit (standardised routing No.

  • Page 28: Water Flow Rate Control

    2 - INSTALLATION OF UNIT 2.5 - Water flow rate control 2.5.5 - Nominal system water flow control 2.5.1 - Water leakage The water circulation pumps of the EREBA He Check that the water-side connections are units have been sized to allow the hydraulic clean and show no sign of leakage.

  • Page 29: Table 2: Steps To Clean, Purge, And Define A Flow Rate For Hydraulic Circuit

    2 - INSTALLATION OF UNIT Table 2: Steps to clean, purge, and define a flow rate for hydraulic circuit With Variable Speed Hydraulic module With Variable Speed Hydraulic N° Adjustable constant speed module ΔT Open the manual control valve fully. No manual control valve required with Variable Speed Hydraulic module Set the system pump Read the BPHE pressure drop...
  • Page 30 2 - INSTALLATION OF UNIT Steps Table Par. Designation Description Range Default Unit 321 Quick Test enable Access to Quick test mode 0 to 1 Adjust water pump speed until obtain 331 Water Pump Speed the expected design water flow (refer to 0 to 100 QCK_ Graphic 1).
  • Page 31 2 - INSTALLATION OF UNIT 2.5.6 - Available external static pressure Data applicable for: - Fresh water 20°C - If glycol is used, the maximum water flow is reduced. Graphic 1: Available static pressure for 5 to 15 kW units with hydraulic module EREBA He 5 kW Water flow rate - l/s EREBA He 7 kW...

  • Page 32: Commissioning Modes

    2 - INSTALLATION OF UNIT 2.6 - Commissioning modes 2.7 - Check before start the unit IMPORTANT: Never be tempted to start the heat pump Field connection of interface circuits without reading fully, and understanding, the may lead to safety risks: any control box operating instructions and without having modification must maintain equipment carried out the following pre-start checks:...

  • Page 33: Installation Of System

    3 - INSTALLATION OF SYSTEM In this section, the general customer electrical connection is detailed as well as the main steps of configuration and examples of standard installation: - Installation with electrical booster heaters - Installation with and boiler - Master / Slave installation Likewise the setpoint configuration with remote user interface is shown as well as the installation of additional OAT sensor and IAT senor.

  • Page 34: First Step Of Configuration: Setting The Time And Day

    3 - INSTALLATION OF SYSTEM 3.2 - First step of configuration: Setting the time and day Before using any parameter menu of the WUI or Proprietary Protocol, it is necessary to set the time and day of the control. N° Steps Table Par.

  • Page 35: Second Step Of Configuration: Parameter Menu

    3 - INSTALLATION OF SYSTEM 3.3 - Second step of To validate the password and access parameter configuration, press and hold the configuration: Parameter menu Mode key for 2 seconds. According to the application of unit, several parameters are to be configured to allow the correct operation of system.

  • Page 36: Installation With Electrical Booster Heaters

    3 - INSTALLATION OF SYSTEM Repeat these steps for each digit of the 3.3.4 - To exit the parameter menu setting. Press and hold the Occupancy key until the home screen is displayed. When all the digits are selected and correct, press the Mode key to freeze the value.

  • Page 37: Figure 12: Standard Installation With Electrical Booster Heaters

    3 - INSTALLATION OF SYSTEM EREBA He EN-37...

  • Page 38: Figure 13: Electrical Connection On Terminal Block For Electrical Booster Heaters

    3 - INSTALLATION OF SYSTEM DO#05 - Customized JBUS - JBUS Ground JBUS + Ground Heater Additional Pump WUI 0V WUI +12V Neutral Neutral Neutral DO#09- Customized DO#08- Customized DO#07- Electrical Heater EH#1/Boiler-On/Off DO#06- DHW-V diverting valve Ground-Sensor [Ω ] AI#04- Outdoor Air Temperature Sensor AI#03- Indoor Air Temperature(Room Sensor) AI#02- Chiller water System Temperature Sensor...

  • Page 39: Installation With Dhw Production

    3 - INSTALLATION OF SYSTEM 3.4.3 - Control configuration steps N° Steps Table Par. Designation Description Range Default Unit 0 = No backup 1 = Booster by 1 Electric Heat Stage (EH1) 2 = Booster by 2 Electric Heat Stages (EH1/EH2) Backup Type 0 to 9 3 = Booster by 3 Electric Heat Stages with 2 outputs (EH1/EH2)

  • Page 40: Figure 14: Standard Installation With Dhw Production

    3 - INSTALLATION OF SYSTEM EREBA He EN-40...

  • Page 41: Figure 15: Electrical Connection On Terminal Block For Dhw Production

    3 - INSTALLATION OF SYSTEM EREBA He EN-41...
  • Page 42 3 - INSTALLATION OF SYSTEM 3.5.3 - Control configuration steps N° Steps Table Par. Designation Description Range Default Unit 0 = No DHW management 1 = Diverting Valve 2-points - NO contact (valve energized in DHW Domestic Hot Water position) 0 to 3 Type 2 = Diverting Valve 2-points - NC contact (valve de-energized in DHW...

  • Page 43: Installation With Boiler

    3 - INSTALLATION OF SYSTEM b7: Monday b6: Tuesday b5: Wednesday b4: Thursday b3: Friday b2: Saturday b1: Sunday b0: unused Example: If value "1111 1110" is set, the DHW will be started each and every day. 3.6 - Installation with boiler This installation could be composed of: EREBA He With integrated hydraulic kit (variable speed)

  • Page 44: Figure 16: Standard Installation With Boiler

    3 - INSTALLATION OF SYSTEM EREBA He EN-44...

  • Page 45: Figure 17: Electrical Connection On Terminal Block For Boiler

    3 - INSTALLATION OF SYSTEM EREBA He EN-45...

  • Page 46: Installation With Dhw And Pool Heating Production, Boiler And Buffer Tank

    3 - INSTALLATION OF SYSTEM 3.6.3 - Control configuration steps N° Steps Table Par. Designation Description Range Default Unit 0 = No backup 9 = Backup by Oil or Gas Boiler 601 Backup Type 1 to 10 1 to 8 = not used for this configuration BCK_ 11 Set a Boiler 10 = Backup by Oil or Gas Boiler + DHW Backup...

  • Page 47: Figure 18: Standard Installation With Dhw Production, Pool Heating Production Ans Space Heating (Floor Heating Or Radiator/Fan Coils)

    3 - INSTALLATION OF SYSTEM EREBA He EN-47...

  • Page 48: Figure 19: Electrical Connection On Terminal Block For Dhw, Speace Heating, Pool Heating Production And Boiler

    3 - INSTALLATION OF SYSTEM EREBA He EN-48...

  • Page 49: Master / Slave Installation

    3 - INSTALLATION OF SYSTEM 3.8 - Master / Slave installation This installation could be composed of: EREBA He (same type / same size for one Master / Slave installation) With integrated hydraulic kit: - variable speed (no ΔT logic) Master unit fitted with or without remote user interface No user interface on slave units Cooling Mode...

  • Page 50: Figure 20: Standard Installation With Master / Slave (Example With 3 Slaves)

    3 - INSTALLATION OF SYSTEM EREBA He EN-50...

  • Page 51: Figure 21: Electrical Connection On Terminal Block For Master / Slave Installation

    3 - INSTALLATION OF SYSTEM EREBA He EN-51...
  • Page 52 3 - INSTALLATION OF SYSTEM 3.8.3 - Control configuration steps a - Configuration steps: one master and two slaves with one user interface on master N° Steps Figure Table Par. Designation Description Range Default Ex. Unit For master unit with a WUI, to address the different units of master/slave installation, it is necessary to disconnect RS485 bus (Green connector J6) from Master and all Slaves except the last one.
  • Page 53 3 - INSTALLATION OF SYSTEM N° Range Default Unit Steps Figure Table Par. Designation Description If the units are fitted with internal main variable speed pump, then several parameters are to set for each unit of Master / Slave installation To configure main pump of Master unit, the other units of installation must be in mode OFF (only Master unit is activated) Apply procedure §...

  • Page 54: Unit With Remote User Interface

    3 - INSTALLATION OF SYSTEM b- Manage the Master unit and Slave units 3.9 - Unit with remote user with a common user interface interface Thanks to common user interface on the The user interface is an accessory and must master unit, it is possible to access data of be installed indoors by the installer.
  • Page 55 3 - INSTALLATION OF SYSTEM 3.9.2 - Control configuration steps N° Steps Table Par. Designation Description Range Default Ex, Unit Access Check 0 = No User Interface 1 = Remote control by contacts or SUI User Interface Type 0 to 3 2 = WUI remotely installed in the house Check that the unit 3 = WUI locally installed on the unit...

  • Page 56: Additional Oat Sensor

    3 - INSTALLATION OF SYSTEM 3.10 - Additional OAT sensor If the unit is unfavorably located, leading to incorrect reading of OAT, it is possible to install an additional outdoor air temperature sensor, located in an appropriate position. This sensor is available as an accessory (refer to §1.6.1 Options and accessories tables).
  • Page 57 3 - INSTALLATION OF SYSTEM 3.11.2 - Control configuration steps Steps Table Par. Designation Description Range Default Unit 0 = No User Interface 1 = Remote control by contacts or SUI UI_CONF User Interface Type 0 to 3 2 = WUI remotely installed in the house (Even if localWUI ) Check that the unit is 3 = WUI locally installed on the unit...

  • Page 58: Operation

    4 - OPERATION The unit may operate in HOME, SLEEP, 4.1 - Unit range - EREBA He or AWAY mode. The occupancy can be Cooling Cycle set manually by the user or automatically Evaporator Water Temperature °C Minimum Maximum according to the schedule (refer to WUI end Entering water temperature at start-up user manual).

  • Page 59: Table 4: Different Operating Modes

    4 - OPERATION When the heat pump is in Heating mode, When the unit is Off, press the Mode key to the heat pump heats the water loop to the wake up the user interface and then press the selected temperature. When the outdoor air Mode key successively to select the required temperature is very low, electric heaters or operating mode.

  • Page 60: Table 5: Possible Switches To Install On System

    4 - OPERATION c - JBus communication The unit can be started or stopped and its System Mode can be selected from the JBus network. Refer to JBus registers in § 7. Parameter overview. 4.2.4 - Switches Some modes described below (summer mode / night mode…) could be activated or desactivated by switches.
  • Page 61 4 - OPERATION COOLING WUI Occupancy Air setpoint on WUI direct access Range Air setpoint on parameter menu Range Cool Home Setpoint 20 to 38°C Cool Home Setpoint [P424] 20 to 38°C Cool Sleep Setpoint 20 to 38°C Cool Sleep Offset [P425] 0 to 10°C Cool Away Setpoint 20 to 38°C...
  • Page 62 4 - OPERATION The climatic curve corresponds to the water setpoint in Home mode. To define the other occupancy modes, it is necessary to configure Cool Sleep Offset [P408] and Cool Away Offset [P409]: Cooling Climatic Curve in function of occupancy mode Cooling Climatic Curve in function of occupancy mode Home Sleep...
  • Page 63 4 - OPERATION The climatic curve corresponds corresponds to the water setpoint in Home mode. To define the other occupancy modes, it is necessary to configure Heating Sleep Offset [P402] and Heating Away Offset [P403]: Heating Climatic Curve in function of occupancy mode Heating Climatic Curve in function of occupancy mode P402 P403...
  • Page 64 4 - OPERATION Example: - If OAT is invalid, the Water Setpoint is equal to the Custom Max. Water Temp Custom Cooling Climatic Curve [P585]. - If OAT is above the current Maximum OAT threshold, the Water Setpoint is equal to the Custom Min. Water Temp P590 Default [P584].

  • Page 65: Figure 25: Winter Position For Unit With Hydraulic Module

    4 - OPERATION 4.2.6 - Home Anti-freeze protection This protection is used on EREBA He, only with remote user interface or IAT sensor. It is used to maintain the minimum room temperature which is by default set to 6°C. When the room temperature goes below the Home Anti-freeze setpoint[P427], the unit will run in Heating mode until the room temperature is increased: [P427] + 2°C.
  • Page 66 4 - OPERATION NOTE: Please note that “water freeze The above water thresholds shall be reduced protection” and “home anti-freeze by 5K if “Fluid Type” [P560] is configured as protection” are two different modes. Medium Brine (value 2). Water freeze protection is used in IMPORTANT: Depending on the atmospheric order to reduce the risk to freeze conditions in your area you must do the...
  • Page 67 4 - OPERATION The DHW production is possible when: is practically non-existent when the water temperature is set to 60°C. - DHW only mode is selected and there is DHW production demand (temperature Water tank protection settings conditions) To protect the domestic water tank against - DHW schedule is activated and there is legionella bacteria, the following parameters DHW production demand (temperature...

  • Page 68: Table 6: Different Configurations Of Pump

    4 - OPERATION The RS485 communication cable (not According to wear factor: Units are started supplied) must be connected on each unit. sequentially based on the wear factor. As system demand increases, the unit with b - Control the lowest wear factor is started first, when All units installed in the same master/slave system demand decreases capacity, the unit group share the same operating mode as...

  • Page 69: Table 7: Different Control Logic For Main Pump

    4 - OPERATION The installer is responsible for ensuring the protection of any additional pump against the low water flow rate (no flow switch can be managed by unit control). The management of different states of main pump (ON / OFF) is different according to the kind of installation (options, accessories, applications).
  • Page 70 4 - OPERATION - Three electric heat stages with two This control is for the purpose customized discrete outputs: EH1 and EH2. of preventing stagnation of the - Three electric heat stages with three refrigerant inside the compressor. customized discrete outputs: EH1 and EH2 4.2.14 - Defrost cycle (traditional defrost) and EH3.

  • Page 71: Figure 27: Activation And Configuration For Drying Mode

    4 - OPERATION 4.2.16 - Drying mode The Drying mode enables a gradual water temperature ramp-up in Heat mode for UFH drying. This operating mode can only be selected from the service access level, it is automatically stopped at the end of the configured period. Example of application in drying mode: ●...

  • Page 72: Major System Components

    4 - OPERATION 4.2.17 - Summer mode EREBA He units may operate in Summer mode which is active under the following conditions: - when the Summer Switch is closed - or when conditions on OAT [P716] and time [P717] and [P718] are validated. When the Summer mode is active, then the unit may operate only as specified in the table below.
  • Page 73 4 - OPERATION 4.3.2 - Compressors Product 11 & 15 kW EREBA He units use hermetic rotary Specific ratio 1,002 Relevant information to facilitate the disassembly, compressor. It is driven by a variable See Maintenance recycling or removal of the product at the end of Manual frequency drive (VFD).
  • Page 74 4 - OPERATION 4.3.8 - Water evaporator/condenser 4.3.11 - Four-way valve The evaporator/condenser is a plate heat For EREBA He units, this device permits the exchanger. The water connection of the reversal of the refrigeration cycle to allow heat exchanger is a threaded connection. operation in cooling mode, in heating mode, It has a thermal insulation of 6 and 13 mm and during defrost cycles.

  • Page 75: Maintenance

    5 - MAINTENANCE NOTE: 5.1 - Standard maintenance Any deviation or non-observation of To ensure optimal efficiency and reliability these maintenance criteria will render the of the units, we recommend establishing a guarantee conditions for the HVAC unit maintenance contract with your local Service nul and void, and the manufacturer, will no organisation.
  • Page 76 5 - MAINTENANCE the electrical protection devices. 5.1.3 - Level 3 (or higher) maintenance ● Check the correct operation of all electric The maintenance at this level requires heaters. specific skills/approval/ tools and know-how ● Check that no water has penetrated into and only the manufacturer, his representative the control box.

  • Page 77: Tightening Torques For The Main Electrical Connections

    5 - MAINTENANCE 5.2 - Tightening torques for the 5.4 - Water heat exchanger main electrical connections maintenance Check that: Component Designation in the unit Value (N.m) ● the insulating foam is intact and securely Terminal Bloc supply L1 / L2 / L3 / N / PE in place.

  • Page 78: Characteristics Of R-410A

    5 - MAINTENANCE 5.7 - Characteristics of R-410A Saturated temperatures based on the gauge pressure (in kPag) Saturated Temp. Gauge pressure, Saturated Temp. Gauge pressure, Saturated Temp. Gauge pressure, °C kPag °C kPag °C kPag 1020 2429 1053 2490 1087 2551 1121 2614...

  • Page 79: Alarm Description

    6 - ALARM DESCRIPTION c) If there error, 6.1 - Inverter board alarm codes D800 D804 goes (only for 11-15 kW 1Ph or 3Ph units) (Display 1) The latest error displayed can be confirmed d) When pushing the pushdown button by lighting LED D800 to D804 on the outdoor switch SW800 for approx.

  • Page 80: Alarm Listing

    6 - ALARM DESCRIPTION 6.2 - Alarm listing The following tables of alarms list their probable cause and the likely effect on the unit, as well as the reset type. Table 9: Alarms listing Reset type Description Investigation / corrective actions Comment 1.
  • Page 81 6 - ALARM DESCRIPTION Reset type Description Investigation / corrective actions Comment Energized Cooler Heater while alarm is active. Force pump to run until alarm reset kind becomes Exchanger Freeze Protection on Stop manual. Refrigerant Temp (in Cooling) Error becomes definite after retrying operation more than 12 occurrences within a 2 hours period Exchanger High Temp Protection Heating Mode and LWT above 62°C or TR above...
  • Page 82 6 - ALARM DESCRIPTION Reset type Description Investigation / corrective actions Comment Inverter Heatsink Temperature Error becomes definite after retrying operation for Cpr stop 1. Check heat sink airflow path. too high 4 times. Other Inverter Error Continue Unknowned Inverter Error Continue Real Time Clock Failure on NHC Continue...

  • Page 83: Parameters Overview

    Setpoint parameters ● 501 to 799 Configuration parameters Legend: No access Read-Only Read/Write RO/d Read-Only and Display on the WUI RO/F Read-Only and Parameter Forcing by CCN CIAT Par. Mnemonic Description Range Default Unit Table Jbus Outdoor Air Temperature 1/10°C...
  • Page 84 7 - PARAMETERS OVERVIEW CIAT Par. Mnemonic Description Range Default Unit Table Jbus STATUS OR 9C4EH CTRL_PNT Control Point 0,0 to 60,0 1/10°C RO/d RO/F MSL_ STAT 4E3CH CTRL_TMP Control Temp -40,0 to 115,0 1/10°C RO/d RO/F STATUS N.A. cmp_req...
  • Page 85 7 - PARAMETERS OVERVIEW CIAT Par. Mnemonic Description Range Default Unit Table Jbus ms_cap Mast/Slv Total Capacity 0 to 100 MSL_STAT Mst_req Master Request Capacity 0 to 100 MSL_STAT slv1_req Slave #1 Request Capa. 0 to 100 MSL_STAT slv2_req Slave #2 Request Capa.
  • Page 86 7 - PARAMETERS OVERVIEW CIAT Par. Mnemonic Description Range Default Unit Table Jbus inv_err Inverter Error (Code) 0 to 255 ALARM inv_erra Inverter Error (Alpha) “Normal” / “Xnn” ALARM alm_01 Current Alarm #1 0 to 200 ALARM 51E8H alm_02 Current Alarm #2...
  • Page 87 7 - PARAMETERS OVERVIEW CIAT Par. Mnemonic Description Range Default Unit Table Jbus cust_di7 Customized DI#7 Config -15 to 15 GEN_CONF cust_di8 Customized DI#8 Config -15 to 15 GEN_CONF cust_do5 Customized DO#5 Config 0 to 9 GEN_CONF Cust_do8 Customized DO#8 Config...
  • Page 88 7 - PARAMETERS OVERVIEW CIAT Par. Mnemonic Description Range Default Unit Table Jbus bck_delt Booster Delta Temp 1,0 to 20,0 1/10°C BCK_CONF bck_oat Booster OAT Threshold -20,0 to 15,0 -7,0 1/10°C BCK_CONF 4FF8H ehs_kp EHS Proport. Gain 0,001 to 10,000...
  • Page 89 7 - PARAMETERS OVERVIEW CIAT Par. Mnemonic Description Range Default Unit Table Jbus jbus_tmt JBus Comm. Timeout 0 to 600 JBUSCONF mbusoff1 Modbus Display Offset 0 to 61440 16384 JBUSCONF mbusoff2 Modbus Setpoint Offset 0 to 61440 32768 JBUSCONF mbusoff3...

  • Page 90: Description Of Customized Di/Do Configurations

    7 - PARAMETERS OVERVIEW 7.2 - Description of customized DI/DO configurations Par. Description Range Range description Customized DI#5 Config 0 = Disabled -1 or 1 = Power Limitation Switch Customized DI#6 Config -2 or 2 = Off Peak Switch Customized DI#7 Config -3 or 3 = Loadshed Request Switch -4 or 4 = Solar Input Switch -5 or 5 = DHW Request Switch from tank...

  • Page 91: Start-Up Checklist For Ereba He Heat Pumps (Use For Job File)

    8 - START-UP CHECKLIST FOR EREBA He HEAT PUMPS (USE FOR JOB FILE) 8.1 - General information General information Job name Location Installing contractor Distributor Start-up performed by Date Equipment Unit type Serial number Software version [P654] Compressor Model number Serial number Air handling equipment Manufacturer...

  • Page 92: Checks Before Start Of Unit

    8 - START-UP CHECKLIST FOR EREBA He HEAT PUMPS (USE FOR JOB FILE) 8.3 - Checks before start of unit Comment Is there any shipping damage? Unit is level in its installation Power supply agrees with the unit name plate Electrical circuit wiring has been sized and installed properly Unit ground wire has been connected Unit neutral wire has been connected...

  • Page 93: Maintenance Checks

    8 - START-UP CHECKLIST FOR EREBA He HEAT PUMPS (USE FOR JOB FILE) 8.5 - Maintenance checks Date / Hour Mechanical check Leakage check Control Relief valve check Electrical connection check Water freeze protection check Freeze protection Add glycol in water (%) Coil cleaning Cleaning Water filter cleaning...
  • Page 96 Tel. : 08 11 65 98 98 - Fax : 08 26 10 13 63 (€0.15/min) Compagnie Industrielle d’Applications Thermiques Non-contractual document. As part of our continuous drive to improve our products, CIAT reserves the right to make Corporation with a capital of €26,728,480 any technical modifications without prior notice. R.C.S. Bourg-en-Bresse B 545.620.114...

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