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LZT

High efficiency air to water heat pumps

MTLZTGB

REV.012008

Cod

Meaning

Cause / Origin

Reset

A07

Anti freeze alarm

Digital input active anti freeze

probe

Manual

proceed with manual reset.

A08

Water flow alarm

Digital input active for AL06

duration.

Automatic

It turns to manual after 3 events in 1

hour.

A09

Compressor 1 thermal

protection alarm

Digital input active

Manual

the event expires, then proceed with

manual reset.

A10

Compressor 2 thermal

protection alarm

Digital input active

Manual

the event expires, then proceed with

manual reset.

A11

Condenser fan thermal

protection alarm

Digital input active

Manual

the event expires, then proceed with

manual reset.

A12

Defrost error alarm

Max defrost time

Automatic

with next proper defrost cycle.

Proceed with manual reset.

A13

Compressor 1 maintenance

warning

Running hour > CO14

Manual

Proceed with the hour reset procedure.

A14

Compressor 2 maintenance

warning

Running hour > CO15

Manual

Proceed with the hour reset procedure

A15

Water pump maintenance
Warning

Running hour warning

Manual

Proceed with the hour reset procedure

rtC

Clock alarm

Need to set the clock time

Manual

Set the clock and then proceed with

manual reset.

rtF

Clock alarm

Faulty clock control

Manual

Proceed with manual reset, if nothing

happens change the clock.

EEPROM error alarm

Possible data losing

Manual

Proceed with manual reset., if nothing

happens the controller is locked, no regulation

available.

ACF1

Configuration alarm

Heat pump configured without

reversing valve

Automatic

After parameter proper debug.

ACF2

Configuration alarm

without condensing probe

control configuration

Automatic

After parameter proper debug.

ACF3

Configuration alarm

Two digital inputs having the

same function

Automatic

After parameter proper debug.

FErr

Functioning alarm

Two digital inputs activated at
the same time

Manual

after the alarm event expires, proceed

with manual reset.

AFr

Frequency alarm

The frequency of power supply
is out of range

Automatic

After the frequency becomes normal

Содержание LZT 05

Страница 1: ...HIGH EFFICIENCY AIR TO WATER HEAT PUMPS LZT SERIES TECHNICAL MANUAL ...

Страница 2: ...LZT High efficiency air to water heat pumps MTLZTGB REV 012008 2 ...

Страница 3: ... 2 Ambiente industriale Compatibilité électromagnétique Norme génériqué immunité Partie 2 Environnement industriel Electromagnetic compatibility Generic immunity standard Part 2 Industrial environment Flüssigkeitssammler Reciver Elektromagnetische Verträglichkeit Allgemeine Bestimmung über die Immunität Teil 2 industrieller Raum Elektromagnetisk kompatibilitet Immunitet Del 2 Generella fordringar ...

Страница 4: ...atteri Certificato n Cerificat n Certificate n Zertifikate N Certifikat n CE 1370 PED A1 HID001 07 ITA Si dichiara sotto la nostra responsabilità che le forniture sopra indicate sono conformi in ogni parte alle direttive CEE di cui al punto 1 Le forniture sono state prodotte collaudate e verificate con riferimento alle normative di cui al punto 2 Nous declarons sous notre responsabilité que les fo...

Страница 5: ...ower page 15 User heat exchanger water pressure drops page 16 Domestic hot water heat exchanger water pressure drops page 17 User circuit water pumps available static pressure page 18 Operation limits page 19 Corrections tables page 20 Sound Data page 20 Safety Device Setting page 21 Electric data page 21 Inspection page 21 Lifting and handling page 21 Location and minimum technical clearances pag...

Страница 6: ...ty and functionality of its products HOW TO KEEP THIS MANUAL The manual must be always with the unit it refers to It must be stored in a safe place away from the dust and moisture It must be accessible to all users who shall consult it any time they are in doubt on how to operate the equipment HIDROS SRL reserves the right to modify its products and related manuals without necessarily updating pre...

Страница 7: ...ry user must be perfectly knowledgeable about the functions of the equipment and its controls and must have read and understood the information container in this manual It s strictly forbidden to remove and or camper with any safety device Any routine or not routine maintenance operation shall be carried out when the equipment has been shut down disconnected from electric and pneumatic power sourc...

Страница 8: ... free movements Appropriate lighting of the work place shall be provided so as to allow the operator to carry out the required operations safely Poor or too strong lighting can cause risks Ensure that work places are always adequately ventilated and that aspirators are working in good condition and in compliance with the requirements of the laws in force PERSONAL PROTECTIVE EQUIPMENT When operatin...

Страница 9: ...e the heat exchange factor The geometry of these condensers guarantee a low air side pressure drop and then the use of low rotation and low noise emission fans The source heat exchangers can be protected by a metallic filter to be installed on request Fans The fans are axial type with aluminium aerofoil blades They are statically and dynamically balanced and supplied complete of the safety fan gua...

Страница 10: ...le this can not be obtained if the water tank is installed on the hot water inlet water side Water pump centrifugal type suitable for chilled water operation The pump is directly controlled by the microprocessor that controls its correct operation In the hydraulic circuit are also present the expansion vessel the safety valve and the eventual manual valves with fittings LZT LS LOW NOISE VERSION Th...

Страница 11: ... 28 1x 0 28 1x 0 28 1x 0 28 2 x 0 2 2 x 0 31 2 x 0 37 2 x 0 37 2 x 0 37 Scroll Scroll with economizer and vapour injection Compressor type n 1 1 1 1 1 1 2 2 2 Refrigerant circuit n 1 1 1 1 1 1 1 1 1 Sound power level 6 dB A 68 68 68 68 70 74 79 79 79 Sound pressure level 7 dB A 40 40 40 40 42 46 51 51 51 Water pump option kW 0 25 0 25 0 25 0 25 0 37 0 37 0 55 0 55 0 55 Water tank capacity option l...

Страница 12: ...C TWUC C W W Mod TAMB C 35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60 15 4 3 4 3 1 8 2 0 2 4 2 2 10 5 2 5 2 1 9 2 1 2 7 2 5 7 5 8 5 7 5 7 2 0 2 2 2 4 2 9 2 6 2 4 5 6 2 6 2 6 1 2 0 2 2 2 4 3 1 2 8 2 5 2 6 9 6 8 6 7 6 7 2 1 2 3 2 5 2 8 3 3 3 0 2 7 2 4 0 7 5 7 3 7 2 7 1 7 0 2 1 2 3 2 6 2 8 3 1 3 5 3 1 2 8 2 5 2 3 2 8 0 7 8 7 7 7 6 7 5 2 2 2 4 2 6 2 9 3 1 3 7 3 3 2 9 2 6 2 4 5 8 9 8 7 8 5 8 3 ...

Страница 13: ... 3 0 2 7 LZT 20 15 23 4 23 2 22 9 22 6 22 2 4 6 5 1 5 5 6 1 6 7 5 1 4 6 4 1 3 7 3 3 PH kW PA kW COP TWUC C TWUC C W W Mod TAMB C 35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60 15 11 5 11 9 12 4 13 0 4 4 4 9 5 4 6 1 2 6 2 4 2 3 2 1 10 13 4 13 7 14 0 14 5 15 0 4 6 5 0 5 6 6 2 7 1 2 9 2 7 2 5 2 3 2 1 7 14 7 14 9 15 2 15 5 15 9 16 4 4 7 5 1 5 7 6 3 7 1 8 1 3 1 2 9 2 7 2 5 2 2 2 0 5 15 6 15 8 16...

Страница 14: ...ity and its temperature can be calculated in the table at pages 12 13 14 depending on the ambient and the user water outlet conditions The table below shows the capacity of the model LZT13 SW6 PH kW PA kW COP TWUC C TWUC C W W Mod TAMB C 35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60 15 7 1 7 3 7 6 8 0 2 7 3 0 3 3 3 7 2 6 2 5 2 3 2 2 10 8 2 8 4 8 6 8 9 9 2 2 8 3 0 3 4 3 7 4 2 2 9 2 8 2 6 2 ...

Страница 15: ...12 13 14 15 The cooling capacity and the compressors input power in different working conditions can be obtained by multiplying the nominal values PF PA with their respective correction factors The diagram above indicates the correction factors for each curve the relative ambient conditions assuming that the difference between inlet and outlet cold water temperature is 5 C 30 C 40 C 35 C 25 C 20 C...

Страница 16: ...USER HEAT EXCHANGER WATER PRESSURE DROPS 20 30 40 50 800 1000 1200 1400 1600 1800 2000 20 30 40 50 2000 3000 4000 5000 B LZT 05 C LZT 07 D LZT 09 E LZT 13 G LZT 20 25 20 25 30 35 40 45 50 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 I LZT 30 M LZT40 E D C B G I M ...

Страница 17: ...C HOT WATER HEAT EXCHANGER WATER PRESSURE DROPS 20 30 40 50 800 1000 1200 1400 1600 1800 2000 20 30 40 50 2000 3000 4000 5000 B LZT 05 C LZT 07 D LZT 09 E LZT 13 G LZT 20 25 20 25 30 35 40 45 50 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 I LZT 30 M LZT40 I M E D C B G ...

Страница 18: ...AVAILABLE STATIC PRESSURE 20 30 40 50 60 70 80 600 800 1000 1200 1400 1600 1800 20 30 40 50 60 70 80 90 100 110 120 130 140 2000 2500 3000 3500 4000 4500 B LZT 05 C LZT 07 D LZT 09 E LZT 13 G LZT 20 25 20 40 60 80 100 120 140 160 180 4000 5000 6000 7000 8000 I LZT 30 M LZT 40 B E F I C D G M ...

Страница 19: ...05 07 09 higher values may call the action of safety devices with unit stop Cold water temperature summer operation The minimum temperature allowed at the evaporator outlet is 5 C To work below this limit the unit should need some structural modifications In this case contact our company The maximum temperature allowed at the evaporator outlet is 15 C Ambient air temperature The units are designed...

Страница 20: ... Cooling capacity correction factor IPCF Input power correction factor SOUND DATA LZT LS LOW NOISE VERSION Octave bands Hz Lw Lp 63 125 250 500 1K 2K 4K 8K Mod dB dB dB dB dB dB dB dB dB dB A dB A 05 07 80 9 72 3 66 2 64 7 63 6 58 2 54 8 45 7 81 9 68 0 40 0 09 09T 80 9 72 3 66 2 64 7 63 6 58 2 54 8 45 7 81 9 68 0 40 0 13 81 9 73 3 67 2 65 7 64 6 59 2 55 8 46 7 82 9 69 0 41 0 20 86 9 78 3 72 2 70 7...

Страница 21: ... disconnected INSPECTION When installing or servicing the unit it is necessary to strictly follow the rules reported on this manual to conform to all the specifications of the labels on the unit and to take any possible precautions of the case Not observing the rules reported on this manual can create dangerous situations After receiving the unit immediately check its integrity The unit left the f...

Страница 22: ...ase frame If it is the case it is possible to install anti vibration mounts spring or rubber to keep vibrations at a very low level Absolute care must be taken to ensure adequate air volume to the condenser Re circulation of discharge air must be avoided failure to observe this point will result in poor performance or activation of safety controls For these reasons it is necessary to observe the f...

Страница 23: ...3 MOD A B C D E 25 1000 800 800 800 3000 30 1000 800 800 800 3000 40 1000 800 800 800 3000 INSTALLATION OF THE HOODS The sound attenuation hoods are supplied loose they have to be mounted on the unit by Self screwing screws M3 5 x 16 supplied in the installation kit ...

Страница 24: ...and the hydraulic pressure drops of the system All pipes must be insulated with closed cell material of adequate thickness The chillers have to be connected to the piping by using flexible joints Piping should include Temperature and pressure gauges for the ordinary maintenance or servicing operations Shut off manual valves to separate the unit from the hydraulic circuit Metallic filters to be mou...

Страница 25: ...NTS A System filling group L Water pump B Thermometer M One way valve C Flexible connection N Evaporator D Ball shut off valve O Flow switch E Water strainer P User Water tank F Expansion vessel Q Water manometer G Safety valve R Domestic hot water accumulator H Vent valve S Domestic hot water feeding I Water tank Drainage valve ...

Страница 26: ...LZT High efficiency air to water heat pumps MTLZTGB REV 012008 26 DOMESTIC HOT WATER HYDRAULIC CONNECTIONS SW6 VERSIONS ONLY ...

Страница 27: ...er sensor MC Compressor BTO Supply water sensor SFW Flow switch CH Charging plug SHP High pressure switch CN Source heat exchanger SLP Low pressure switch CNSW Domestic hot water heat exchanger SV Manual valve ECO Economizer VR One way valve EV User heat exchanger VRV Reverse cycle valve EXV Thermostatic valve VSH High pressure safety valve FL Refrigerant filter YBP Hot gas by pass valve IV Sight ...

Страница 28: ...ed by the sensor is lower than the required set point VSH BTI BTO SFW VR M MFA LR FL SV EXV MFC M NO NC BPH MC SLP SHP CH VRV CH YBP IV ECO VR EXV YBP VR YW EV CNSW CN YL The LZT SW6 unit allows the production of cold and hot water independently from the operation mode of the unit heating or cooling During winter operation if domestic hot water is required it is temporarily stopped the water flow ...

Страница 29: ...he area near the cooling openings START UP Before start up Check that all power cables are properly connected and all terminals are hardly fixed The voltage at the phase R S T is the one shown in the unit labels Check that there is not any refrigerant leakage Check that crankcase heaters are powered correctly Check that all water connections are properly installed and all indications on unit label...

Страница 30: ...escribed in this chapter MUST BE DONE BY TRAINED PEOPLE ONLY Before every operation of servicing on the unit be sure that the electric supply is disconnected The top shell and discharge line of compressor are usually at high temperature level Be very careful when operating in their surroundings Aluminium coil fins are very sharp and can cause serious wounds Be very careful when operating in their ...

Страница 31: ... of its life and needs to be removed or replaced the following operations are recommended the unit refrigerant has to be recovered by trained people and sent to proper collecting centre compressor lubricating oil has to be recovered and sent to proper collecting centre the frame and various components if not usable any longer have to be dismantled and divided according to their nature particularly...

Страница 32: ...ance warning Running hour CO15 Manual Proceed with the hour reset procedure A15 Water pump maintenance Warning Running hour warning Manual Proceed with the hour reset procedure rtC Clock alarm Need to set the clock time Manual Set the clock and then proceed with manual reset rtF Clock alarm Faulty clock control Manual Proceed with manual reset if nothing happens change the clock EE EEPROM error al...

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Страница 40: ... Tel 390 49 9731022 Fax 390 49 5806928 I In nf fo o h hi id dr ro os s i it t www hidros it Technical data shown in this booklet are not binding HIDROS SRL shall have the right to introduce at any time whatever modifications necessary to the improvement of the product ...

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