Airwell AW-WHPMA18-H93 Technical Manual
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Airwell AW-WHPMA18-H93 Technical Manual

Wellea monobloc df r32
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TECHNICAL MANUAL
WELLEA MONOBLOC DF
R32
AW-WHPMA18-H93
AW-WHPMA22-H93
AW-WHPMA26-H93
AW-WHPMA30-H93
21.AW.WELLEA.MONO.DF.R32.TM.EN.22.02

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Summary of Contents for Airwell AW-WHPMA18-H93

  • Page 1 TECHNICAL MANUAL WELLEA MONOBLOC DF AW-WHPMA18-H93 AW-WHPMA22-H93 AW-WHPMA26-H93 AW-WHPMA30-H93 21.AW.WELLEA.MONO.DF.R32.TM.EN.22.02...
  • Page 2 CONTENTS Part 1 General Information ................3 Part 2 Engineering Data ................19 Part 3 Installation and Field Settings ............39...
  • Page 4 Part 1 General Information 1 Wellea Mono DF System ................4 2 Unit Capacities ................... 6 3 System Design and Unit Selection .............. 7 4 Typical Applications ................... 9...

  • Page 5: Wellea Mono Df System

    1 Wellea Mono DF System 1.1 System Schematic Figure 1-1.1: System schematic Distributor Wellea Mono DF is an integrated air-to-water space heating, space cooling and domestic hot water heat pump system. Wellea Mono DF Outdoor Unit The outdoor heat pump system extracts heat from the outdoor air and transfers this heat trought refrigerant piping to the plate heat exchanger in the hydronic system.
  • Page 6 1.2 System Configurations Wellea Mono DF can be configured to run with the electric heater either enabled or disabled and can also be used in conjunction with an auxiliary heat source such as a boiler. The chosen configuration affects the size of heat pump that is required. Three typical configurations are described below. Refer to Figure 1-1.2.

  • Page 7: Unit Capacities

    2 Unit Capacities Table 1-2.1: Unit capacities range and appearances Capacity 18kW 22kW 26kW 30kW Model AW-WHPMA18-H93 AW-WHPMA22-H93 AW-WHPMA26-H93 AW-WHPMA30-H93 Appearance...

  • Page 8: System Design And Unit Selection

    3 System Design and Unit Selection 3.1 Selection Procedure Step 1: Total heat load calculation Calculate conditioned surface area Select the heat emitters (type, quantity, water temperature and heat load) Step 2: System configuration Decide whether to include AHS and set AHS’s switching temperature Decide whether backup electric heater is enabled or disabled Step 3: Selection of outdoor units Determine required total heat load on outdoor units...
  • Page 9 3.2 Wellea Leaving Water Temperature (LWT) Selection The recommended design LTW ranges for different types of heat emitter are:  For floor heating: 30 to 35⁰C  For fan coil units: 30 to 45⁰C  For low temperature radiators: 40 to 50⁰C 3.3 Optimizing System Design To get the most comfort with the lowest energy consumption with Wellea, it is important to take account of the following considerations:...

  • Page 10: Typical Applications

    4 Typical Applications 4.1 Space Heating The room thermostat is used as a switch. When there is a heating request from the room thermostat, the Mono unit operates to achieve the target water temperature set on the user interface. When the room temperature reaches the thermostat’s set temperature, the unit stops.
  • Page 11 4.2 Space Heating and DHW with solar system Space heating without room thermostat connected to the unit. Domestic hot water tank is connected to the unit, and the tank is with solar heating system. Solar water pump is controlled by Tsolar temperature sensor. Balance tank temperature sensor is used to control on/off of heat pump.
  • Page 12 4.3 Space Heating, Cooling and DHW with solar system Space cooling and heating application with a room thermostat suitable for heating/cooling changeover when connected to the unit. Heating is provided through floor heating loops and fan coil units. Cooling is provided through the fan coil units only.
  • Page 13 4.4 AHS provides heat for space heating Space heating application by either the unit or by AHS connected in the system. If AHS only provides heat for space heating, AHS must be integrated in the piping work. Figure 1-5.4: AHS provides heat for space heating Table 1-5.4: AHS provides heat for space heating Legend Outdoor unit...
  • Page 14 4.5 AHS provides heat for space heating and DHW Space heating application by either the unit or by AHS connected in the system. Bivalent operation is possible for both space heating operation and domestic water heating operation. If AHS is also providing heat for domestic hot water, AHS can be integrated in the piping work.
  • Page 15 4.6 AHS provides heat for DHW Figure 1-5.6: AHS provides heat for DHW Table 1-5.6: AHS provides heat for DHW Legend Outdoor unit Drain valve Manometer Expansion vessel (field supplied) Pressure relief valve P_o: Outside circulation pump (field supplied) Expansion vessel Collector / Distributor (field supplied) Plate heat exchanger Domestic hot water tank (field supplied)
  • Page 16 4.7 Dual setpoint function application with two room thermostats Space heating with two room thermostats application is through floor heating loops and fan coil units. The floor heating loops and fan coil units require different operating water temperature. The floor heating loops require a lower water temperature in heating mode compared to fan coil units.
  • Page 17 4.8 Dual setpoint function application without thermostats Heating is provided through floor heating loops and fan coil units. The floor heating loops and fan coil units require different operating water temperatures. The floor heating loops require a lower water temperature in heating mode compared to fan coil units.
  • Page 18 4.9 Group control function for cooling, heating and DHW Modularity is perfect when an extension of capacity becomes required as the building cooling/heating demand evolves. 6 units can be controlled in group. The group control system can control and view the operation of the entire system only by connecting the master to the wire controller.

  • Page 20: Table Of Contents

    Part 2 Engineering Data 1 Specifications ................... 20 2 Dimensions and Center of Gravity ............21 3 Piping Diagrams ..................22 4 Wiring Diagrams ..................23 5 Capacity Tables..................26 6 Operating Limits ..................32 7 Hydronic Performance ................33 8 Sound Levels ....................

  • Page 21: Specifications

    1 Specifications Table 2-1.1: Wellea Mono DF 18-22-26-30 kW specifications 18 kW 22 kW 26 kW 30 kW Model name Power supply V/Ph/Hz 380-415/3/50 Capacity 18000 22000 26000 30100 Heating Rated input 3830 5000 6373 7698 4.70 4.40 4.08 3.91 Capacity 18000 22000...

  • Page 22: Dimensions And Center Of Gravity

    2 Dimensions and Center of Gravity Figure 2-2.1: Wellea Mono DF 18-22-26-30 kW dimensions and center of gravity (unit: mm)

  • Page 23: Piping Diagrams

    3 Piping Diagrams Figure 2-3.1: Wellea Mono DF 18-22-26-30 kW piping diagram Figure 3 -7.1: Locati o n of the t emperature s Mn o Thermal Spli t s y st ems Number Sensor name Sensor code Suction pipe temperature sensor Discharge pipe temperature sensor Outdoor ambient temperature sensor Air side heat exchanger refrigerant...

  • Page 24: Wiring Diagrams

    4 Wiring Diagrams Figure 2-4.1: Wellea Mono DF 18-22-26-30 kW wiring diagram To the heating tape of drainage outlet 2020.07.03 (<200mA) SV1-3 M1/M2 Remote switch T2,T2B,TW-in, TW-out,T1, Temperture Temperature sentor Controller Tbt1,Tbt2,T5, Tw2,Tsolar System parallel Master unit Slave unit Mast er unit ..
  • Page 25 Figure 2-4.2: Wellea Mono DF 18-22-26-30 kW group control system wiring diagram Notes: 1. Airwell recommends 6 units to be controlled by one controller and installed by reversed return water system for better hydraulic equilibrium. 2. In order to ensure the success of automatic addressing, all machines must be connected to the same power supply and powered on uniformly.
  • Page 26 Figure 2-4.3 Figure 2-4.4 Circular wiring : Copper wire terminal Insulation tube Proper power wiring connections Power cord 9. Power Cord Connection of group control system Use a dedicated power supply for the indoor unit that is different from the power supply for the outdoor unit. Use the same power supply, circuit breaker and leakage protective device for the indoor units connected to the same outdoor unit.

  • Page 27: Capacity Tables

    5 Capacity Tables 5.1 Heating Capacity Tables (Test standard：EN14511) Table 2-5.1: AW-WHPMA18-H93 heating capacity - peak values LWT (⁰C) Outdoor air temp. ⁰C DB -25.0 10191 6401 1.59 9069 6788 1.34 -20.0 12939 6013 2.15 11515 6376 1.81 10091 6739 1.50 -15.0...
  • Page 28 Table 2-5.3: AW-WHPMA22-H93 heating capacity - peak values Outdoor LWT (⁰C) air temp. ⁰C DB -25.0 9328 6216 1.50 8359 6583 1.27 -20.0 12899 6067 2.13 11566 6424 1.80 10234 6782 1.51 -15.0 19637 7474 2.63 19112 8206 2.33 17334 9221 1.88 15482 10266 1.51 13359 10279 1.30 -7.0 24093 8159 2.95 23733 9254 2.56 23791 9963 2.39 23836 10691 2.23 21846 10470 2.09 13558 10441 1.30 9946 8124 1.22 -2.0...
  • Page 29 Table 2-5.5: AW-WHPMA26-H93 heating capacity - peak values LWT (⁰C) Outdoor air temp. ⁰C DB -25.0 8466 6031 1.40 7648 6378 1.20 -20.0 12858 6120 2.10 11617 6472 1.79 10376 6824 1.52 -15.0 19196 7250 2.65 19196 8261 2.32 16826 9394 1.79 14361 10561 1.36 13648 11345 1.20 -7.0 23890 8383 2.85 24743 9597 2.58 24316 10102 2.41 24743 10962 2.26 24743 11645 2.12 16704 12198 1.37 12590 10175 1.24 -2.0...
  • Page 30 Table 2-5.7: AW-WHPMA30-H93 heating capacity - peak values Outdoor LWT (⁰C) air temp. ⁰C DB -25.0 7869 6255 1.26 7181 6605 1.09 -20.0 13266 6606 2.01 12076 6976 1.73 10887 7347 1.48 -15.0 19411 7517 2.58 19955 8898 2.24 16890 10236 1.65 13704 11616 1.18 13400 12465 1.08 -7.0 24516 8730 2.81 24888 9928 2.51 25711 10959 2.35 26547 12019 2.21 26933 12887 2.09 22278 14100 1.58 16470 12795 1.29 -2.0...
  • Page 31 5.2 Cooling Capacity Tables (Test standard：EN14511) Table 2-5.9: AW-WHPMA18-H93 cooling capacity Outdoor LWT (⁰C) temp. ⁰C DB PI EER CC PI EER CC PI EER CC PI EER CC PI EER 23005 5857 3.93 20981 5876 3.57 18282 5902 3.10 18000 6556 2.75 17038 6782 2.51 15520 6811 2.28 12938 6417 2.02 11216 6154 1.82...
  • Page 32 Table 2-5.11: AW-WHPMA26-H93 cooling capacity Outdoor LWT (⁰C) temp. ⁰C DB PI EER CC PI EER CC PI EER CC EER CC EER CC PI EER 24292 5752 4.22 21983 5881 3.74 18905 6053 3.12 20603 7674 2.68 18692 7781 2.40 18066 8335 2.17 15882 8240 1.93 14426 8177 1.76 25992...

  • Page 33: Operating Limits

    6 Operating Limits Figure 2-6.1: Heating operating limits Outdoor temperature(℃) 5 12 25 35 55 60 Water flow temperature (℃) Figure 2-6.2: Cooling operating limits Outdoor temperature(℃) 5 10 Water flow temperature (℃) Figure 2-6.3: Domestic hot water operating limits Outdoor temperature(℃) 5 12 25 35...

  • Page 34: Hydronic Performance

    7 Hydronic Performance Figure 2-7.1: Wellea Mono DF 18-22-26-30 kW hydronic performance Available external static presurre VS Flow rate Ⅲ Ⅱ Ⅰ Flow rate (m Abbreviations: ESP: External static pressure Notes: I, II and III indicate water pump speed: I: Low II: Medium III: High.

  • Page 35: Sound Levels

    8 Sound Levels 8.1 Overall Table 2-8.1: Sound pressure levels Model name dB(A) AW-WHPMA18-H93 57.6 AW-WHPMA22-H93 59.8 AW-WHPMA26-H93 61.5 AW-WHPMA30-H93 63.5 Notes: Sound pressure level is measured at a position 1m in front of the unit and (1+H)/2m (where H is the height of the unit) above the floor in a semi-anechoic chamber.
  • Page 36 8.2 Octave Band Levels Figure 2-8.2: AW-WHPMA18-H93 octave band levels Outdoor air temperature 7⁰C DB, 85% R.H.; EWT 30⁰C, LWT 35⁰C NR-90 Outdoor air temperature 7⁰C DB, 85% R.H.; NR-80 EWT 40⁰C, LWT 45⁰ NR-70 NR-60 Outdoor air temperature 7⁰C DB, 85% R.H.;...
  • Page 37 Figure 2-8.4: AW-WHPMA26-H93 octave band levels Outdoor air temperature 7⁰C DB, 85% R.H.; EWT 30⁰C, LWT 35⁰C NR-90 Outdoor air temperature 7⁰C DB, 85% NR-80 R.H.; EWT 40⁰C, LWT 45⁰ NR-70 NR-60 Outdoor air temperature 7⁰C DB, 85% NR-50 R.H.; EWT 47⁰C, LWT 55⁰ NR-40 NR-30 Outdoor air temperature 35⁰C DB;...

  • Page 38: Accessories

    9 Accessories 9.1 Standard accessories Table 2-9.1: Standard accessories Name Shape Quantity Name Shape Quantity Installation and owner’s manual Tighten belt for customer wiring use Thermistor for domestic hot water Operation manual tank(T5) Technical data manual Extension wire for T5 Y-shaped filter Network matching wire Water outlet connection pipe assembly...
  • Page 40 Part 3 Installation and Field Settings Preface to Part 3 .................. 40 Installation ..................41 Water Pipework ................... 46 Electrical Wiring................... 50 DIP Switch Settings ................52 Internal Circulation Pump Speed Settings ..........53 User Interface Field Settings ..............55 Operation parameter ................

  • Page 41: Preface To Part 3

    The information contained in this Engineering Data Book may primarily be of use during the system design stage of a Airwell Wellea Mono DF project. Additional important information which may primarily be of use during field installation has been placed in boxes, such as the example below, titled “Notes for installers”.

  • Page 42: Installation

    2 Installation Acceptance and Unpacking  Notes for installers  When units are delivered check whether any damage occurred during shipment. If there is damage to the surface or outside of a unit, submit a written report to the shipping company. ...
  • Page 43 that the controller’s wiring length limitation will not be exceeded. In systems that are configured to heat domestic hot water and/or include an external backup electric heater, outdoor units should be installed in positions that are sufficiently close to the domestic hot water tank and/or backup electric heater that the piping and temperature sensor wiring length come within the allowable ranges.
  • Page 44 Figure 3-2.3: Installation room illustration Cold Climate Installation In cold climate locations installation should take account of the following Figure 3-2.4: Snow shielding considerations: Never install the unit at a site where the suction side may be exposed directly ① to wind.
  • Page 45 Figure 3-2.5: Outdoor unit typical concrete base structure design (unit: mm) (unit: mm) Φ10 Expansion bolt Rubber shocking proof mat ≥100 Solid ground ≥80 Concrete basement or roofing h≥100mm Drainage Drainage ditch should be provided to allow drainage of condensate that may form on the air side heat exchanger when the unit is running in heating mode or domestic hot water mode.
  • Page 46 Figure 3-2.8: Parallel connect the two units or above >300 >600 >3000 Figure 3-2.9: Parallel connect the front with rear sides >6000 >3000 >1000 >4000 >300...

  • Page 47: Water Pipework

    3 Water Pipework Water Circuit Checks Wellea Mono DF units are equipped with a water inlet and outlet for connection to a water circuit. Wellea Mono DF units should only be connected to closed water circuits. Connection to an open water circuit would lead to excessive corrosion of the water piping.
  • Page 48 To determine the maximum allowed water volume in the entire circuit, proceed as follows: Determine the calculated pre-pressure (Pg) for the corresponding maximum water volume using the Figure 3-3.1. Figure 3-3.1: Maximum water volume A1: System without glycol A2: System with 25% propylene glycol Pre-pressure = pre-pressure of the expansion vessel Maximum water volume = maximum water volume in the system...
  • Page 49 Hold the pipe end downwards when removing burrs Cover the pipe end when inserting it through a wall to prevent dust and dirt entering. Use a good thread sealant for sealing the connections. The sealing must be able to withstand the pressures and temperatures of the system.
  • Page 50 That the water treatment is correctly executed by a qualified water specialist. That a glycol with corrosion inhibitors is selected to counteract acids formed by the oxidation of glycols. That in case of an installation with a domestic hot water tank, only the use of propylene glycol is allowed. In other installations the use of ethylene glycol is fine.

  • Page 51: Electrical Wiring

    4 Electrical Wiring General  Notes for installers Caution  All installation and wiring must be carried out by competent and suitably qualified, certified and accredited professionals and in accordance with all applicable legislation.  Electrical systems should be grounded in accordance with all applicable legislation. ...
  • Page 52 A dedicated power circuit is required for the backup electric heater. Installation equipped with a domestic hot water tank (field supplied) requires a dedicated power circuit for the immersion heater. Lay out the electrical wiring so that the front cover does not rise up when doing wiring work and attach the front cover securely.

  • Page 53: Dip Switch Settings

    Table 3-4.1: Wiring requirements Item Description Current Required number of conductors Maximum running current Solar energy kit signal wire 200mA User interface wire 200mA Room thermostat wire 2 or 3 200mA Boiler control wire 200mA Temperature sensor wire for Tw2 Control wire for DHW PUMP 200mA Control wire for 3-way valve...

  • Page 54: Internal Circulation Pump Speed Settings

    6 Internal Circulation Pump Speed Settings The internal circulation pump speed can be selected by adjusting the red knob on the pump. The default factory setting is the highest speed (III). If the system water flow is too high, the pump speed can be set to medium (II) or low (I). The relationship between external static pressure and water flow rate is described in Part 2, 7 “Hydronic Performance”.
  • Page 55 Warning signals The warning signal is indicated by the LED display. The fault signal LED and the SSM relay do not respond. The pump continues to run with limited output. The indicated faulty operating status must not occur for a prolonged period. The cause must be eliminated. Figure 3-6.4: Warning signals Code No.

  • Page 56: User Interface Field Settings

    7 User Interface Field Settings Introduction During installation, the Wellea settings and parameters should be configured by the installer to suit the installation configuration, climate conditions and end-user preferences. The relevant settings are accessible and programmable through the FOR SERVICEMAN menu on the Wellea user interface. The user interface menus and settings can be navigated using the user interface’s touch-sensitive keys, as detailed in Table 3-7.1.
  • Page 57 Menu Structure...
  • Page 58 FOR SERVICEMAN Menu FOR SERVICEMAN allows installers to input the system configuration and set Figure 3-7.2: FOR SERVICEMAN password screen the system parameters. To enter FOR SERVICEMAN, go to MENU > FOR FOR SERVICEMAN SERVICEMAN. Please input the password: Enter the password, using ◄ ► to navigate between digits and using ▼ ▲ to adjust the numerical values, and then press OK.
  • Page 59 Only when the space heating/cooling is OFF will the heat pump operate to heat domestic water. DHW PUMP sets whether or not the DHW pump is controlled by the Wellea unit. If the DHW pump is to be controlled by the Wellea, select YES.
  • Page 60 until at least t_INTERVAL_DHW minutes have elapsed. dT5_TBH_OFF sets the temperature difference between the DHW set temperature (T5S) and the DHW tank water temperature (T5) below which the immersion is not used. When T5 > Min(T5Stop+dT5_TBH_OFF, 65°C), the immersion heater is off. T4_TBH_ON sets the ambient temperature above which the immersion heater will not be used.
  • Page 61 PUMP tab on the DOMESTIC HOT WATER (DHW) menu, if TIMER RUNNING is enabled. DHW PUMP DI RUN sets wether or not the DHW pump (field supply) operates during the disinfection mode. COOL MODE SETTING Menu MENU > FOR SERVICEMAN > COOL MODE SETTING Figure 3-7.10: COOL MODE SETTING menu 2 COOL MODE SETTING 2 COOL MODE SETTING...
  • Page 62 T1SetC1 sets the temperature 1 of automatic setting curve for cooling mode. T1SetC2 sets the temperature 2 of automatic setting curve for cooling mode. T4C1 sets the ambient temperature 1 of automatic setting curve for cooling mode. T4C2 sets the ambient temperature 2 of automatic setting curve for cooling mode. ZONE1 C-EMISSION sets the emission type of zone1 for cooling mode.
  • Page 63 dTSH sets the temperature difference between the actual room temperature (Ta) and set room temperature (TS) above which the heat pump provides heated water to the space heating terminals. When TS – Ta ≥ dTSH the heat pump provides heated water to the space heating terminals and when Ta ≥ TS the heat pump does not provide heated water to the space heating terminals.
  • Page 64 TEMP. TYPE SETTING Menu MENU > FOR SERVICEMAN > TEMP. TYPE SETTING Figure 3-7.19: TEMP. TYPE SETTING menu The TEMP. TYPE SETTING is used for selecting whether the water flow 5 TEMP. TYPE SETTING 5.1 WATER FLOW TEMP. temperature or room temperature is used to control the ON/OFF of the heat 5.2 ROOM TEMP.
  • Page 65 If set DOUBLE ZONE to YES and set ROOM TEMP. to NON, meanwhile set WATER FLOW TEMP. to YES or NON, the following pages will be displayed. In this case, the setting value of zone 1 is T1S, the setting value of zone 2 is T1S2. DOUBLE ZONE to YES and set ROOM TEMP.
  • Page 66 7.10 OTHER HEATING SOURCE Menu 7.10.1 OTHER HEATING SOURCE menu overview MENU > FOR SERVICEMAN > OTHER HEATING SOURCE Figure 3-7.26: OTHER HEATING SOURCE menu 7 OTHER HEATING SOURCE 7.1 dT1_IBH_ON 5°C 7.2 t_IBH_DELAY 30MIN 7.3 T4_IBH_ON -5°C 7.4 dT1_AHS_ON 5°C 7.5 t_AHS_DELAY 30MIN...
  • Page 67 7.11 HOLIDAY AWAY SETTING Menu MENU > FOR SERVICEMAN > HOLIDAY AWAY SETTING Figure 3-7.29: HOLIDAY AWAY SETTING menu The HOLIDAY AWAY SETTING menu settings are used to set the outlet water 8 HOLIDAY AWAY SETTING temperature to prevent water pipes freezing when away from home in cold 8.1 T1S_H.A._H 20°C weather seasons.
  • Page 68 7.14 TEST RUN 7.14.1 TEST RUN Menu overview MENU > FOR SERVICEMAN > TEST RUN TEST RUN is used to check that the valves, air purge function, circulation pump, space cooling mode, space heating mode and DHW mode are all operating correctly. Figure 3-7.32: TEST RUN start screen and TEST RUN menu 11 TEST RUN 11 TEST RUN...
  • Page 69 7.14.3 AIR PURGE operation MENU > FOR SERVICEMAN > TEST RUN > AIR PURGE Once installation is complete it is important to run the air purge function to remove any air which may be present in the water piping and which could cause malfunctions during operation. Figure 3-7.35: AIR PURGE operation The AIR PURGE operation is used to remove air from the water piping.
  • Page 70 7.14.6 HEAT MODE RUNNING operation Figure 3-7.38: HEAT MODE RUNNING display The HEAT MODE RUNNING operation is used to check the operation of the 11 TEST RUN system in space heating mode. Test run is on. Heat mode is on. During the HEAT MODE RUNNING operation the Wellea unit leaving water set Leaving water temperature is 15°C.
  • Page 71 7.15 SPECIAL FUNCTION Figure 3-7.40: Special functions menu 7.15.1 SPECIAL FUNCTION menu overview 12 SPECIAL FUNCTION 12 SPECIAL FUNCTION MENU > FOR SERVICEMAN > SPECIAL FUNCTION 12.1 PREHEATING FOR FLOOR Active the settings and active the “SPECIAL FUNCTION”? 12.2 FLOOR DRYING UP SPECIAL FUNCTION is used to pre-heating floor and drying up floor once installation is complete or the first time start up the unit or restart the unit after a long time...
  • Page 72 Figure 3-7.43: Preheating for floor screens 12.1 PREHEATING FOR FLOOR 12.1 PREHEATING FOR FLOOR Preheat for floor is Do you want to turn off the preheating running for 25 minutes. for floor function? Water flow temperature is 20°C. CONFIRM CONFIRM 7.15.3 FLOOR DRYING UP Figure 3-7.44: FLOOR DRYING UP menu MENU >...
  • Page 73 7.16 AUTO RESTART MENU > FOR SERVICEMAN > AUTO RESTART Figure 3-7.47: AUTO RESTART menu 13 AUTO RESTART AUTO RESTART sets whether or not the unit re-applies the user interface settings 13.1 COOL/HEAT MODE when the power returns following a power failure. Select YES to enable auto restart or 13.2 DHW MODE NON to disable auto restart.
  • Page 74 7.19 CASCADE SET MENU > FOR SERVICEMAN > CASCADE SET Figure 3-7.51:CASCADE SET 16 CASCADE SET 16.1 PER_START 16.2 TIME_ADJUST 5 MIN 16.3 ADDRESS RESET ADJUST PER_START sets the start-up percentage of multiple units. TIME_ADJUST sets the judgment period of adding and subtracting units ADDRESS RESET resets the address code of unit.( “FF”...

  • Page 75: Operation Parameter

    8 Operation parameter MENU > OPERATION PARAMETER This menu is for installer or service engineer reviewing the operation parameters. There are nine pages for the operating parameter as following Figure 3-8.1: Operation parameter OPERATION PARAMETER OPERATION PARAMETER OPERATION PARAMETER ONLINE UNITS NUMBER PUMP-O GAS BOILER OPERATE MODE...

  • Page 76: Usb Function Guidelines

    After that, if parameter correction is needed, please connect the USB with computer and open the EXCEL file to change parameters and then save it. Please do not change the file name or format. Parameters are not allowed for non-professionals to change and Airwell recommends to use the wired controller to change the parameters. Step 3: Plug USB disk into the port of hydronic PCB of B unit and select “WRITE SET PARAMETER”...
  • Page 77 9.2 Convenient program upgrade for unit There is no need to carry any heavy equipment but only USB disk can realize program upgrade. Steps are as follows: Step 1: Copy new program in U disk root directory where other files in bin format are not allowed in Step 2: Power on and make sure communication is normal.

  • Page 78: Appendix

    10 Appendix 10.1 Environment Temperature Curves The climate related curves can be selected in the user interface, MENU > PRESET TEMPERATURE > WEATHER TEMP. SET. Figure 3-11.1: WEATHER TEMP.SET menu The curves for heating mode and ECO heating mode are the same but the default PRESET TEMPERATURE curve is curve 4 in heating mode, while in ECO mode, the default curve is curve 6.
  • Page 79 Figure 3-11.3: High temperature curves for heating mode T1S(℃) Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 T4(℃) -30 -25 -20 -15 -10 Notes: It only has the curves of the high temperature setting for heating, if the high temperature is set for heating. Curve 4 is default in high temperature heating mode and curve 6 is default in ECO mode.
  • Page 80 Figure 3-11.5: High temperature curves for cooling mode T1S(℃) Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 T4(℃) Notes: It only has the curves of the high temperature setting for cooling, if the high temperature is set for cooling. Curve 4 is default in high temperature cooling mode.

  • Page 81: Error Code Table

    11 Error Code Table Table 3-12.1: Error code table Error code Content PED PCB fault High temp. protection of inverter module Water flow fault (E8 displayed 3 times) Phase loss or neutral wire and live wire are connected reversely (only for three phase unit) Communication fault between controller and main control board of hydraulic module Final outlet water temp.
  • Page 82 Inverter module protection Anti-freeze mode protection High temperature protection of refrigerant outlet temp. of condenser Water inlet temperature is higher than water outlet in heating mode DC compressor inverter module fault DC bus low voltage protection (from inverter module mostly when compressor running) DC bus high voltage protection from DC driver MCE fault Zero speed protection...
  • Page 84 TECHNICAL MANUAL WELLEA MONOBLOC DF A WARNING : The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. 21.AW.WELLEA.MONO.DF.R32.TM.EN.22.02...

This manual is also suitable for:

Aw-whpma22-h93Aw-whpma26-h93Aw-whpma30-h93

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