HIdRos WHK Series Technical Manual
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HIdRos WHK Series Technical Manual

Super-high temperature water to water heat pumps
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SUPER-HIGH TEMPERATURE WATER TO WATER HEAT PUMPS
WHK
SERIES
+78°C
TECHNICAL MANUAL
Multiple instructions:
the instructions before
the unit
MTEC.4410.GB-C-1
C 05-2021
Instructions

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Summary of Contents for HIdRos WHK Series

  • Page 1 SUPER-HIGH TEMPERATURE WATER TO WATER HEAT PUMPS SERIES +78°C TECHNICAL MANUAL Multiple instructions: the instructions before the unit MTEC.4410.GB-C-1 C 05-2021 Instructions...
  • Page 2 Super-high temperature water to water heat pumps Declaration of conformity MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 3: Table Of Contents

    ............................4.4 Inspection ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................4.24 Electric connections ......................................................................MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 4 6.6 CIRC ................................................................................................... 7. MAINTENANCE OF THE UNIT ................................................................7.2 Access to the unit ............................................................................................................................8. DECOMMISSIONING ................................................................................................................................................................................... MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 5: Introduction

    1.1 Preliminary information these instructions. 1.2 Aim and content of the manual instructions. 1.3 How to store this manual user. 1.4 Manual Update 1.5 How to use this manual MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 6 Super-high temperature water to water heat pumps 1.6 Potential Risks POTENTIAL LOCATION OF METHOD OF INJURY PRECAUTIONS RISK RISK Burns. unit enclosure unit. open. Entire unit Entire unit MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 7 Super-high temperature water to water heat pumps 1.7 General Description of Symbols Used BANNED WARNING ACTION REQUIRED MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 8 1.8 Safety symbols used GENERAL RISK ELECTRICAL HAZARD MOVING PARTS HOT SURFACES SHARP SURFACES EARTH CONNECTION READ AND UNDERSTAND THE INSTRUCTIONS RECOVER OR RECYCLE MATERIAL 1.9 Limitations and prohibited use MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 9 Super-high temperature water to water heat pumps +39 049 9731022 MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 10: Safety

    2.1 Warning re potentially hazardous toxic substances ENVIRONMENTAL PROTECTION : 2.1.3 Persistence and degradation 2000. 2.1.4 Effects of discharges 2.1.5 Exposure controls and personal protection 2.1.6 Professional exposure limits 2.2 Refrigerant handling MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 11 2.5.2 Contact with skin 2.5.3 Contact with eyes 2.5.4 Ingestion 2.6 First Aid Measures 2.6.1 Inhalation 2.6.2 Contact with skin 2.6.3 Contact with eyes 2.6.4 Ingestion 2.6.5 Further medical treatment MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 12: Technical Characteristics

    3. TECHNICAL CHARACTERISTICS 3.1 Unit description 3.1.1 Frame 3.1.2 Refrigerant circuit 3.1.3 Compressors 3.1.4 Source heat exchanger 3.1.5 User exchangers 3.1.6 Electric enclosure 3.1.7 Microprocessors 3.1.8 Control and protection devices MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 13 Super-high temperature water to water heat pumps 3.2 Other versions 3.2.1 HH 3.2.2 HH/HT 3.2.3 HH/LT 3.2.4 Version LS (only units 1804 ÷ 2604) 3.2.5 XL Super low noise version (only units 302 ÷ 1402) MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 14 3.3.6 Remote control panel( (PCRL) 3.3.7 RS485 serial interface card MODBUS protocol (INSE) 3.3.8 Source water 2 way modulating valve (4-20 mA; 0-10 V) (V2MO) 3.3.9 Electronic expansion valve (VTEE) MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 15 1430 HH/HT 1202 1402 1804 2304 2604 A+++ A+++ A+++ A+++ A+++ A+++ A+++ A+++ A+++ A+++ SCOP SCOP 1430 1430 1430 1430 1430 1430 1430 1430 1430 1430 MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 16 Super-high temperature water to water heat pumps 3.5 Operation limits 3.5.2 User hot water temperature 3.5.4 Source water temperature MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 17 Super-high temperature water to water heat pumps 3.6 Domestic hot water production 3.6.1 Solution 1 MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 18 This is the solution for existing buildings or for those applications where it is not possible to remove existing plants. possibility of using the existing DHW tank. COLD WATER in the tank. AS MUCH AS POSSIBLE MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 19 3.8.3 Correction tables different Fouling factors Fouling factor 0.00005 0.0001 0.0002 CCCP 0.98 0.94 IPCF 0.98 0.95 CCCP = Cooling capacity correction factor IPCF = Input power correction factor MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 20 Octave bands (Hz) Mod. dB(A) dB(A) 1202 1402 1804 2304 2604 Octave bands (Hz) Mod. dB(A) dB(A) 1202 1402 1804 2304 2604 Lw: Sound power level according to ISO 3744. MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 21: Installation

    Super-high temperature water to water heat pumps 4. INSTALLATION 4.1 General safety guidelines and and use of symbols tion. 4.2 Health and safety Considerations 4.3 Personal protective equipment MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 22: Inspection

    Super-high temperature water to water heat pumps 4.4 Inspection In Case of Damage 4.5 Storage 4.5.1 Shipment 4.6 Unpacking MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 23 Super-high temperature water to water heat pumps 4.7 Lifting and handling 302 - 402 - 602 - 702 1804 - 2304 - 2604 902 - 1202 - 1402 4.8 Location and minimum technical clearances MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 24 Super-high temperature water to water heat pumps Mod. 1000 1000 1000 1000 1000 1202 1000 1402 1000 Mod. 1804 1000 1000 2304 1000 1000 2604 1000 1000 MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 25 Super-high temperature water to water heat pumps 4.9 Installation of rubber vibration dampers (KAVG) sez A - A ØM ØD ØE Mod. 302÷602 702÷1402 1804÷2604 4.10 Serial interface card RS485 (INSE) MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 26 Super-high temperature water to water heat pumps 4.11 Source water pump installation 2…10 2…10 0…10 0…10 4.12 Hydraulic connections MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 27 Silicon ion Total Iron 4.14 User circuit minimum water content Model 1202 1402 1804 2304 2604 Minimum water content (l) 1200 1500 1700 1200 1500 1700 Safety valve (bar) MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 28 4.16 Chemical characteristics of source water circuit Carbonic acid dissolved Gas chloride free Hydrogen peroxide sulfur Manganese Ammonia Nitrate Chloride Oxygen Chloride free Sulphate Electrical conductivity Iron pH Value MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 29 Super-high temperature water to water heat pumps 4.17 Hydraulic components nection of the unit. MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 30 Super-high temperature water to water heat pumps 4.17.1 Solution 1 10 mt MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 31 Super-high temperature water to water heat pumps 4.17.2 Solution 2 10 mt MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 32 Super-high temperature water to water heat pumps 4.17.3 Solution 3 6 mt Collector probes MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 33 1200 1500 1700 Safety valve (bar) The above values do not guarantee the availability and temperature of domestic hot water 4.19 Filling the hydraulic circuit 4.20 Emptying the installation MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 34 4.21 Typical installations 4.21.1 Combined heating / Cooling / Domestic hot water production – 2 pipe system The plant components supplied by the company are: STANDARD OPTIONS NOT AVAILABLE MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 35 Super-high temperature water to water heat pumps 4.22 Electric connections: preliminary safety information FROST PROTECTION MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 36 Power supply Control board Auxiliary circuit Line section PE section 1202 1402 1804 2304 2604 Model Power supply Control board Auxiliary circuit Line section PE section present in the units. MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 37: Electric Connections

    4.24.1 Remote wiring connections (compulsory) USER CIRCUIT WATER INLET SENSOR (BTI) USER CIRCUIT WATER PUMP WEATHER COMPENSATED SENSOR (BTE) 4.24.2 Remote wiring connections (optional) REMOTE ON / OFF REMOTE GENERAL ALARM 90-91-92. MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 38 Super-high temperature water to water heat pumps REMOTE CONTROL PANEL USER CIRCUIT ELECTRIC INTEGRATION HEATERS PUMP SOURCE USER CIRCUIT WATER OUTLET SENSOR (BTO) USER CIRCUIT FLOW SWITCH (SFW1) MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 39 Correct positioning of the BTI sensor Incorrect positioning of the BTS sensor 4.26 Positioning of the domestic hot water circuit sensor (BTS) Correct positioning of the BTS sensor Incorrect positioning of the BTS sensor MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 40 Super-high temperature water to water heat pumps 4.27 Refrigerant circuit layout Ø Ø Ø Ø Ø Ø Ø Ø BTAS § Ø Ø VMAS Ø Ø BTFI V3SW5 VMAS YTSO YTUT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 41: Unit Start Up

    Super-high temperature water to water heat pumps 5. UNIT START UP 5.1 Preliminary checks 5.1.1 Before start-up • • • • • • • • • • • • • MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 42 5.1.2 Safety device setting Device Set-point Differential Reset ----- ----- MANUAL support. 5.1.3 Controls during unit operation • • • 5.1.4 Refrigerant charge checking • After • • • • MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 43 Indicates that the fans are working. Free cooling is active (not available). Indicates that an alarm is active. Domestic hot water. Economy function Indicates that the defrost is active. Unloading function. MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 44 5.4 To remote the control 5.4.1 Remote keyboard connection (VGI890) ENTER Rosso / Red Nero / Black Nero / Black Bianco / White Bianco / White Rosso / Red • • MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 45 Super-high temperature water to water heat pumps 5.4.2 Panel mounting connection diagram 5.4.3 Wall mounting connection diagram 5.4.4 Selection built in display or remote keyboard ENTER ENTER Remoto MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 46: Use

    Super-high temperature water to water heat pumps 6. USE 6.1 Switch the unit on Unit 6.1.1 Switch the unit on from the keyboard Cooling mode Heating mode Domestic hot water mode MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 47: Stop

    Unit ON: Heating 00:00 01/01/2014 Evaporator inlet temperature 28.4 °C Evaporator outlet temperature °C 27.0 External air temp. (FC) °C 31.8 San. water temperature N.C. PROBES ALARM SERVICE CIRC. MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 48: Set Points

    50.0 °C External air temp. (FC) °C San. water temperature 50.0 °C PROBES ALARM SERVICE CIRC. ALARM EXIT press EXIT Press 6.3.1 Adjustable parameters Function Adjustment limit Default value MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 49: Alarm

    30.0 High pressure circuit 1 (pressostat) Evaporator outlet temperature °C 35.0 External air temp. (FC) °C San. water temperature 50.0 °C PROBES ALARM SERVICE CIRC. RST ALL RESET EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 50: Circ

    PROBES ALARM SERVICE CIRC. Circuits status Circuits status Circuits status Circuits status Condenser fan Compressors status Unloading status Evaporating-condensing probe Evaporating pump status ALARM ENTER EXIT ALARM ENTER EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 51 N.C. 255 % Circuit Circuit 2 2 ALARM EXIT ALARM EXIT Condenser fan Condenser fan Cond. Cond. fan 1 fan 1 Cond. Cond. fan fan 2 2 ALARM EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 52 Super-high temperature water to water heat pumps 6.7 SERVICE key ENTER EXIT ENTER EXIT Press the SERVICE Press ENTER Press the EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 53 1st level password (Pr1) ALARM EXIT 1st level password (Pr1) 1st level password (Pr1) Password OK! Press ENTER to continue ALARM ENTER EXIT Code Meaning Code Meaning Set point Defrost MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 54 Parameter group selection Sd01 °C Sd02 10.0 °C Sd03 °C Sd04 20.0 °C Dynamic set point Dynamic set point ALARM ENTER EXIT ALARM EXIT Sd05 °C Sd06 -25.0 °C ALARM EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 55 Super-high temperature water to water heat pumps Weather compensated function MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 56 ES18 ES03 ES19 ES04 ES20 ES05 ES21 ES06 ES22 ES07 ES23 ES08 ES24 ES09 ES25 ES10 ES26 ES11 ES27 ES12 ES28 ES13 ES29 ES14 ES30 ES15 ES31 ES16 ES32 MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 57 ES02 ES02 00:00 00:00 Time band n°2 Time band n°2 ES03 ES03 05:00 05:00 Time band n°3 Time band n°3 Energy Saving Energy Saving ALARM EXIT ALARM ENTER EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 58 Disabled Time band n°2 Time band n°2 Tuesday Tuesday 00:00 00:00 08:00 08:00 Disabled Disabled Disabled Disabled Time band n°3 Time band n°3 Wednesday Wednesday ALARM EXIT ALARM EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 59 Water pumps Water pumps Hour Reset Reset Evaporator water pump Sanitary water pump ALARM RESET EXIT 6.7.6 Circuit maintenance Circuits Circuits Circuit 1 enabled Circuit 2 ALARM ENB/DIS EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 60 Defrost status Defrost status Circuit 1 Circuit 1 cycle not in progress cycle not in progress 45 : 0 Time to start (mm:ss) Circuit 2 Circuit 2 ALARM ENTER EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 61 Heaters Heaters Liquid solenoid valves Liquid solenoid valves ALARM EXIT 6.7.11 I/O Status (Input/Output) I/O Status I/O Status Analog input Analog output Digital input Digital output ALARM ENTER EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 62 Prop. Output AUX 1 110.0 °C Analog output 1 winter set point Analog output 1 winter set point -30.0 °C Output % Output % ALARM ENTER EXIT ALARM EXIT MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 63 Upload from device to HotKey ALARM ENTER EXIT 6.7.16 Control panel Control panel Control panel Contrast & backlight Languge selection System information ALARM ENTER EXIT 6.8 Acoustic signal silencing MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 64: Maintenance Of The Unit

    Super-high temperature water to water heat pumps 7. MAINTENANCE OF THE UNIT 7.1 General warnings • • • 7.2 Drive access MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 65 Super-high temperature water to water heat pumps 7.3 Scheduled maintenance Search for leaks CASE Visual Inspection Pressure Test 7.4 Periodical checks MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 66 7.4.1 Electrical system and adjustment Frequency Action to be performed As neces- 7.4.2 Condensing coils and fans Frequency Action to be performed As neces- present every three months or more MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 67 Super-high temperature water to water heat pumps 7.4.3 Compressors Frequency Action to be performed As neces- 7.4 Refrigerant circuit repair Therefore: • • • • • • MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...

  • Page 68: Decommissioning

    Super-high temperature water to water heat pumps 8. DECOMMISSIONING 8.1 Disconnect the unit • • • • • 8.2 Disposal, recovery and recycling 8.3 RAEE Directive (only UE) MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 69 Super-high temperature water to water heat pumps 9. DIAGNOSIS AND TROUBLESHOOTING Code Alarm Description Cause Solution ACF1 ACF2 ACF3 ACF4 ACF5 ACF6 ACF7 ACF8 ACF9 AEFL AEUn AHFL sensor AP10 sensor sensor sensor MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 70 Super-high temperature water to water heat pumps AtE1 AtE2 B1 HP b1AC b1AH b1dF b1hP circuit 1 B1LP b1lP circuit 1 b1tF C1tr C2tr MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 71 Super-high temperature water to water heat pumps MTEC.4410.GB-C-1 Operation and maintenance manual WHK series English Rev. C 05-2021...
  • Page 72 HIDROS Srl...

This manual is also suitable for:

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