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148r9641 ua© Danfoss | Huab cua daws | 2022.07 Nws
AN304931444592en-000201 | 1
Daim ntawv qhia kev teeb tsa
Gas Detection Unit (GDU) Basic + AC (100 - 240 V)
GDA, GDC, GDHC, GDHF, GDH

Cov kws kho mob tsuas yog siv xwb!
Chav tsev no yuav tsum tau teeb tsa los ntawm ib tus kws tshaj lij uas tsim nyog uas yuav txhim kho chav tsev no raws li cov lus qhia no thiab cov qauv teev tseg hauv lawv qhov kev lag luam / lub teb chaws. Cov neeg ua haujlwm tsim nyog ntawm chav tsev yuav tsum paub txog cov kev cai thiab cov qauv tsim los ntawm lawv cov kev lag luam / lub teb chaws rau kev ua haujlwm ntawm chav tsev no. Cov ntawv no tsuas yog npaj los ua ib qho kev qhia thiab cov chaw tsim khoom tsis muaj lub luag haujlwm rau kev teeb tsa lossis kev ua haujlwm ntawm chav tsev no. Kev teeb tsa thiab ua haujlwm tsis ua haujlwm raws li cov lus qhia no thiab nrog rau kev lag luam cov lus qhia yuav ua rau muaj kev raug mob hnyav nrog rau kev tuag thiab cov chaw tsim khoom yuav tsis muaj lub luag haujlwm rau qhov no. Nws yog tus installer lub luag hauj lwm kom txaus kom ntseeg tau tias cov cuab yeej raug teeb tsa kom raug thiab teeb tsa raws li ib puag ncig thiab daim ntawv thov uas siv cov khoom siv.
Thov saib kom paub tias Danfoss GDU ua haujlwm raws li kev ruaj ntseg Kev ruaj ntseg cov tshuaj tiv thaiv rau qhov kuaj pom muaj roj ntau. Yog ib Kev xau tshwm sim, GDU yuav muab lub tswb ua haujlwm, tab sis nws yuav tsis daws los yog saib xyuas qhov to ntawm lub hauv paus ua rau nws tus kheej.
Kev Xeem Txhua Xyoo
Txhawm rau ua raws li cov cai ntawm EN378 thiab F GAS cov cai tswj hwm yuav tsum tau sim txhua xyoo. Danfoss GDU's tau muab nrog lub pob xeem uas yuav tsum tau qhib ib xyoos ib zaug rau kev kuaj lub tswb tshwm sim.
Tsis tas li ntawd, cov sensors yuav tsum raug kuaj rau kev ua haujlwm los ntawm kev kuaj pob lossis calibration. Cov kev cai hauv zos yuav tsum tau ua raws li ib txwm ua Tom qab kis tau cov pa tawm ntau heev, lub sensor yuav tsum tau kuaj xyuas thiab hloov yog tias tsim nyog. Tshawb xyuas cov kev cai hauv cheeb tsam ntawm calibration lossis kev xeem cov cai.

Danfoss Basic + AC (100 - 240 V) GDU

Cov xwm txheej LED:
GREEN yog lub zog rau.
- flashing yog xav tau kev saib xyuas YELLOW yog qhov qhia txog qhov yuam kev.
- thaum lub taub hau sensor raug txiav tawm lossis tsis yog hom xav tau
- AO tau qhib tab sis tsis muaj dab tsi txuas
- flashing thaum lub sensor nyob hauv hom tshwj xeeb (piv txwv li thaum hloov pauv)
RED ntawm lub tswb, zoo ib yam li Buzzer & lub tswb nrov.
Ackn. -/Test khawm:
TEST - Lub pob yuav tsum nias rau 20 sec.
- Alarm1 thiab Alarm2 yog simulated, nres ntawm kev tso tawm
ACKN. - Nias thaum Alarm2, lub suab ceeb toom kaw thiab rov qab mus tom qab 5 feeb. thaum qhov xwm txheej tswb tseem ua haujlwm.
* JP1 qhib → AO 4 - 20 mA (default) JP1 kaw → AO 2 - 10 Volt

Qhov chaw ntawm Sensors

Gas hom	Relative density (Air = 1)	Pom zoo qhov chaw sensor
R717 Ammonia	<1	Qab nthab
R744 CO2	>1	Pem teb
R134a	>1	Pem teb
R123	>1	Pem teb
R404A	>1	Pem teb
R507	>1	Pem teb
R290 Propane	>1	Pem teb

Gas Detection Controller: Fieldbus thaiv - max 96 sensors nyob rau hauv tag nrho xws li mus txog 96 GDU

Tshawb xyuas lub voj ua tiav. Example: 5 x Basic in return loop

1. Xyuas ntawm lub voj tsis kam: Saib ntu: Controller unit ntau GDU commissioning 2. CEEB TOOM: Nco ntsoov disconnect cov hlau los ntawm lub rooj tsavxwm thaum lub sij hawm g ntsuas.
2. Xyuas ntawm BUS polarity: Saib seem: Controller unit ntau GDU commissioning 3.
   Cov Chaw Nyob Ntawm Tus Kheej rau GDU's tau muab rau ntawm kev ua haujlwm, saib Chaw Tswj Xyuas ntau qhov GDU qhov chaw ua haujlwm, raws li kev txiav txim siab "BUS chaw nyob npaj"

Txuas pob ntseg pob ntseg (Basic)

Cable Gland qhib

Qhov punching rau Cable caj pas:

1. Xaiv qhov chaw rau kev nkag mus rau cable zoo tshaj plaws.
2. Siv ib tug ntse ntswj thiab ib tug me me rauj.
3. Muab lub hau ntswj thiab rauj nrog precision thaum txav lub hau ntswj nyob rau hauv ib qho chaw me me kom txog thaum cov yas nkag mus.

Txuas ntxiv precision xuas nrig ntaus nrog me me txav kom txog thaum lub puag ncig tuaj yeem rub tawm los ntawm koj cov ntiv tes.

Tshem tawm cov burrs thiab ruaj ntseg tiaj tus. nstall lub caj pas Cable raws li phau ntawv qhia.
Ambient tej yam kev mob - Sensor dependency (Ib yam GDU nrog rau hauv qab sensor hom yuav tsum tsis txhob muab ntsia sab nraum muab Temp. thiab rel. Humidity Range)

Gas Hom	Hom	Kev ntsuas ntau	Temp. Ntau yam C*	Temp. Ntau F *	rel. Hum range
NH₃ 0 - 100 ppm	EC	0-100 ppm	-30 ° C - +50 ° C	-22 ° F - 122 ° F	15-90% rH ntau
NH₃ 0 - 300 ppm	EC	0-300 ppm	-30 ° C - +50 ° C	-22 ° F - 122 ° F	15-90% rH ntau
NH₃ 0 - 1000 ppm	EC	0-1000 ppm	-30 ° C - +50 ° C	-22 ° F - 122 ° F	15-90% rH ntau
NH₃ 0 - 5000 ppm	EC	0-5000 ppm	-30 ° C - +50 ° C	-22 ° F - 122 ° F	15-90% rH ntau
NH₃ 0 - 1000 ppm	SC	0-10000 ppm	-10 ° C - +50 ° C	14 ° F - 122 ° F	15-90% rH ntau
NH₃ 0 - 10000 ppm	SC	0-10000 ppm	-10 ° C - +50 ° C	14 ° F - 122 ° F	15-90% rH ntau
NH₃ 0 - 100% LEL, 0 - 140000 ppm	P	0 - 100% LEL (0 - 140000 ppm)	-25 ° C - +60 ° C	-13 ° F - 140 ° F	15-90% rH ntau
CO₂ 0 - 2% VOL (20000 ppm)	IR	0,04% - 2% VOL	-35 ° C - +40 ° C	-31 ° F - 104 ° F	0-85% rH ntau
CO₂ 0 - 5% VOL (50000 ppm)	IR	0 - 5% VOL	-35 ° C - +40 ° C	-31 ° F - 104 ° F	0-85% rH ntau
Cov tub yees zoo li R134a 0 - 2000 ppm	SC	0-2000 ppm	-30 ° C - +50 ° C	14 ° F - 122 ° F	15-90% rH ntau
HC R290 / Propane 0 - 5000 ppm	P	0 - 5000 ppm (0 - 30% LEL)	-30 ° C - +60 ° C	-22 ° F - 140 ° F	15-90% rH ntau

* Thov soj ntsuam qhov qis tshaj (siab tshaj) kub tso cai rau GDU tshwj xeeb

General GDU Mounting / Hluav taws xob thaiv

• Txhua GDUs yog rau phab ntsa mounting
• Txhawb pob ntseg raug ntsia zoo li pom hauv daim duab. 6
• Kev nkag cable yog pom zoo rau ntawm lub thawv sab. Saib daim duab. 7
• Sensor txoj hauj lwm downwards
• Ua raws li cov neeg tsim qauv qhia ua tau
• Tso lub hau liab tiv thaiv (foob) ntawm lub taub hau sensor kom txog thaum ua haujlwm

Thaum xaiv qhov chaw mounting thov xyuam xim rau cov hauv qab no:

• Qhov siab mounting nyob ntawm qhov sib txheeb ze ntawm cov roj yam yuav tsum tau saib xyuas, saib daim duab 3.
• Xaiv qhov chaw mounting ntawm lub sensor raws li cov cai hauv zos
• Xav txog qhov cua txias. Tsis txhob mount lub sensor ze rau airflow (air passages, ducts etc.)
• Mount lub sensor ntawm qhov chaw uas muaj kev vibration yam tsawg kawg nkaus thiab qhov ntsuas kub tsawg kawg nkaus (tsis txhob tshav ntuj ncaj qha)
• Zam qhov chaw uas dej, roj thiab lwm yam yuav cuam tshuam rau kev ua haujlwm kom raug thiab qhov chaw muaj kev puas tsuaj tuaj yeem ua tau
• Muab qhov chaw txaus nyob ib ncig ntawm lub sensor rau kev kho thiab calibration ua hauj lwm

Kev xaim
Cov kev cai thiab cov kev cai rau kev xaim, hluav taws xob kev ruaj ntseg, nrog rau qhov project tshwj xeeb thiab ib puag ncig tej yam kev mob thiab lwm yam yuav tsum tau soj ntsuam thaum mounting.
Peb pom zoo cov kab hauv qab no1)

• Fais fab mov rau maub los 230 V tsawg kawg NYM-J 3 x 1.5 mm2
• Tswb lus 230 V (kuj tau ua ke nrog fais fab mov) NYM-J X x 1.5 mm2
• Cov lus ceeb toom, tsheb npav txuas rau Controller Unit, ceeb toom 24 V JY(St)Y 2 × 2 x 0.8
• Tejzaum txuas sab nraud analog transmitters JY(St)Y 2 × 2 x 0.8
• Cable for Heavy Duty: 7 - 12 mm inch round cable

1) Cov lus pom zoo tsis xav txog cov xwm txheej hauv zos xws li kev tiv thaiv hluav taws thiab lwm yam.
Lub tswb ceeb toom muaj xws li muaj peev xwm-dawb hloov-tshaj kev tiv tauj.
Yog xav tau voltage mov muaj nyob rau ntawm lub hwj chim terminals.
Qhov tseeb txoj hauj lwm ntawm lub terminals rau lub sensors thiab tswb relays yog qhia nyob rau hauv daim duab kev twb kev txuas (saib daim duab 2).

GDU
GDU Basic + AC (100 - 240 V) yog tsim los rau kev sib txuas ntawm 1 sensor ntawm tsheb npav hauv zos.
GDU muab lub zog ntawm lub sensor thiab ua rau cov ntaub ntawv ntsuas muaj rau kev sib txuas lus digital. Kev sib txuas lus nrog Controller Unit yuav siv qhov chaw ntawm RS 485 fieldbus interface nrog Controller Unit raws tu qauv. Lwm txoj kev sib txuas lus rau kev sib txuas ncaj qha rau tus thawj tswj hwm BMS kuj muaj nrog rau Analog Output
4-20 mA.
Lub sensor txuas nrog lub tsheb npav hauv zos los ntawm kev sib txuas txuas ua kom yooj yim sensor pauv hloov ntawm qhov chaw calibration. Lub sab hauv X-Hloov niaj hnub lees paub cov txheej txheem sib pauv thiab hloov pauv sensor thiab pib ntsuas hom tau txais. Lub hauv paus X-hloov niaj hnub tshuaj xyuas lub sensor rau hom roj tiag tiag thiab ntsuas qhov tseeb. Yog tias cov ntaub ntawv tsis sib xws nrog cov kev teeb tsa uas twb muaj lawm, qhov teeb tsa teeb tsa LED qhia qhov yuam kev. Yog tias txhua yam zoo, LED yuav teeb ntsuab.
Rau kev yooj yim commissioning, GDU yog pre-configured thiab parameterized nrog Hoobkas-teeb defaults.
Raws li lwm txoj hauv kev, qhov kev ntsuas ntawm qhov chaw los ntawm Controller Unit Service Tool tuaj yeem ua nrog kev sib xyaw ua ke, cov neeg siv khoom siv tau yooj yim calibration. Rau cov chav nrog Buzzer & Teeb, lub tswb yuav raug muab raws li cov lus hauv qab no:

Digital outputs

Kev ua	Cov tshuaj tiv thaiv Horn	Cov tshuaj tiv thaiv LED
Gas signal < tswb 1	OFF	Ntsuab
Gas signal > tswb 1	OFF	RED Slow blinking
Gas signal > tswb 2	ON	RED Fast blinking
Gas teeb liab ≥ alarm pib 2, tab sis ackn. khawm nias	OFF tom qab ncua ON	RED Fast blinking
Gas teeb liab < ( tswb threshold 2 – hysteresis) tab sis >= tswb threshold 1	OFF	RED Slow blinking
Gas teeb liab < (lub tswb pib 1 - hysteresis) tab sis tsis lees paub	OFF	RED blinking ceev heev
Tsis muaj tswb, tsis muaj txhaum	OFF	Ntsuab
Tsis muaj qhov txhaum, tab sis kev saib xyuas vim	OFF	GREEN Maj mam ntsais
Kev sib txuas lus yuam kev	OFF	YAJ

Lub tswb ceeb toom tuaj yeem muaj tus nqi tib yam, yog li cov relays thiab / lossis Buzzer thiab LED tuaj yeem tshwm sim ib txhij.

Kev ua haujlwm

Rau cov sensors uas tuaj yeem raug lom los ntawm xws li silicones zoo li tag nrho cov semiconductor thiab catalytic hlaws sensors, nws yog ib qho tsim nyog yuav tsum tshem tawm cov kev tiv thaiv (foob) lub kaus mom tsuas yog tom qab tag nrho cov silicones qhuav, thiab tom qab ntawd energize lub cuab yeej. Rau kev ua haujlwm nrawm thiab xis nyob peb pom zoo ua raws li hauv qab no. Rau cov khoom siv digital nrog kev saib xyuas tus kheej txhua qhov yuam kev sab hauv yog pom ntawm LED. Tag nrho lwm qhov kev ua yuam kev feem ntau muaj lawv lub hauv paus hauv kev ua haujlwm, vim tias nws nyob ntawm no qhov twg feem ntau ua rau muaj teeb meem hauv kev sib txuas lus hauv tsheb npav.
Optical Check

• Txoj cai cable hom siv.
• Kho qhov siab mounting raws li lub ntsiab lus hauv Mounting.
• Led xwm txheej

Sib piv cov roj sensor hom nrog GDU default settings
Txhua qhov kev txiav txim siab yog qhov tshwj xeeb thiab yuav tsum ua raws li GDU qhov chaw teeb tsa. Lub GDU software cia li nyeem cov lus qhia tshwj xeeb ntawm lub sensor txuas thiab sib piv nrog GDU nqis. Yog tias lwm hom roj sensor txuas nrog, koj yuav tsum kho lawv nrog cov cuab yeej teeb tsa, vim tias lwm yam khoom siv yuav teb nrog cov lus yuam kev.
Qhov no feature nce tus neeg siv thiab kev khiav hauj lwm kev ruaj ntseg.
Cov sensors tshiab yeej ib txwm xa lub Hoobkas-calibrated los ntawm Danfoss. Qhov no yog sau los ntawm calibration daim ntawv qhia hnub thiab calibration gas. Kev rov ntsuas dua tsis tsim nyog thaum lub sijhawm ua haujlwm yog tias lub cuab yeej tseem nyob hauv nws qhov qub ntim (cua nruj tiv thaiv los ntawm lub hau liab tiv thaiv) thiab qhov ntsuas tsis tau rov qab ntau dua 12 lub hlis.
Kev xeem ua haujlwm (rau kev ua haujlwm pib thiab kev saib xyuas)
Kev ntsuas kev ua haujlwm yuav tsum tau ua thaum txhua qhov kev pabcuam, tab sis tsawg kawg ib xyoos ib zaug.
Kev ntsuas kev ua haujlwm yog ua tiav los ntawm nias lub pob xeem rau ntau tshaj 20 sec thiab saib xyuas txhua qhov kev sib txuas (Buzzer, LED, Relay txuas nrog) ua haujlwm kom zoo. Tom qab deactivated, tag nrho cov zis yuav tsum cia li rov qab mus rau nws thawj txoj hauj lwm
Zero-point test nrog huab cua sab nraum zoov.
(Yog tias tau teev tseg los ntawm cov kev cai hauv zos) Qhov muaj peev xwm zero offset tuaj yeem nyeem tau los ntawm kev siv cov cuab yeej Pabcuam.
Kev sim mus ncig nrog kev siv roj (yog tias muaj raws li kev cai hauv zos)
Lub sensor yog gassed nrog siv roj (rau qhov no koj xav tau ib lub raj mis roj nrog lub siab regulator thiab calibration adapter).
Thaum ua li ntawd, lub tswb ceeb toom tau dhau mus, thiab tag nrho cov khoom tso tawm tau qhib. Nws yog ib qho tsim nyog yuav tsum xyuas seb qhov kev sib txuas tso zis ua haujlwm puas ua haujlwm raug (xws li lub suab nrov, kiv cua hloov mus, cov cuab yeej kaw). Los ntawm nias lub laub khawm ntawm lub horn, lub horn lees paub yuav tsum tau kuaj xyuas. Tom qab tshem tawm cov khoom siv roj, tag nrho cov zis yuav tsum tau rov qab mus rau nws qhov chaw pib. Ntxiv rau qhov kev sim ua haujlwm yooj yim, nws tseem tuaj yeem ua qhov kev sim ua haujlwm los ntawm kev ntsuas ntsuas. Yog xav paub ntxiv, thov mus saib Phau Ntawv Qhia Tus Neeg Siv.

Controller Unit ntau GDU commissioning

Rau kev ua haujlwm nrawm thiab xis nyob peb pom zoo ua raws li hauv qab no. Tshwj xeeb tshaj yog cov kev qhia tshwj xeeb ntawm lub tsheb npav cable yuav tsum tau kuaj xyuas kom zoo vim tias nws nyob ntawm no qhov twg feem ntau ua rau muaj teeb meem hauv kev sib txuas lus hauv tsheb npav.

1. Optical Check

• Txoj cai cable hom siv (JY(St)Y 2x2x0.8LG lossis zoo dua).
• Cable topology thiab cable ntev.
• Kho qhov siab mounting ntawm cov sensors
• Kev sib txuas raug ntawm txhua GDU raws li daim duab. 5
• Kev txiav tawm nrog 560 ohm thaum pib thiab thaum kawg ntawm txhua ntu.
• Ua tib zoo saib xyuas kom cov polarities ntawm BUS_A thiab BUS_B tsis thim rov qab!

2. Tshawb xyuas luv luv / cuam tshuam / Cable Length ntawm Field Bus (saib daim duab 5.1)
Cov txheej txheem no yuav tsum tau ua rau txhua ntu.
Lub tsheb npav cable yuav tsum tau muab tso rau ntawm qhov txuas txuas txuas ntawm GDU rau qhov kev sim no. Lub plug, txawm li cas los xij, tseem tsis tau ntsaws rau hauv GDU.
Disconnect lub tsheb npav ua haujlwm los ntawm Controller Unit central control.
Txuas ohmmeter mus rau xoob leads thiab ntsuas tag nrho lub voj tsis kam. Saib daim duab. 5.1 Tag nrho lub voj tsis kam yog xam raws li hauv qab no:

• R (tag nrho) = R (cable) + 560 Ohm (txiav tsis kam)
• R (cable) = 72 Ohm / km (loop resistance) (cable type JY(St)Y 2x2x0.8LG)

R (tag nrho) (ohm)	Ua rau	Kev daws teeb meem
<560	Luv-circuit	Nrhiav luv luv-circuit nyob rau hauv lub tsheb npav cable.
tsis kawg	Qhib-circuit	Nrhiav kev cuam tshuam hauv lub tsheb npav cable.
> 560 < 640	Cable yog ok	-

Qhov kev tso cai cable ntev tuaj yeem suav nrog txoj hauv kev txaus raws li cov qauv hauv qab no.
Tag nrho cable ntev (km) = (R (tag nrho) - 560 Ohm) / 72 Ohm
Yog hais tias lub tsheb npav cable yog OK, reconnect nws mus rau lub central unit.
3. Kos Voltage ntawm Field Bus (saib daim duab 5.2 thiab 5.3)

• Bus connector yuav tsum tau ntsaws rau hauv txhua GDU.
• Hloov ua haujlwm voltage nyob rau ntawm Controller Unit central unit.
• LED ntsuab ntawm GDU teeb tsis muaj zog thaum ua haujlwm voltage yog siv (voltage qhov taw qhia).
• Bus polarity:

Ntsuas qhov nro BUS_A tawm tsam 0 V DC thiab BUS_B tawm tsam 0 V DC. U BUS_A = ca. 0.5 V > U BUS_B U BUS_B = ca. 2 - 4 V DC (nyob ntawm tus naj npawb ntawm GDU thiab nyob rau ntawm kab ntev)

Qhov chaw nyob ntawm GDU

Tom qab kuaj xyuas lub tsheb npav ua tiav, koj yuav tsum muab qhov chaw sib txuas lus yooj yim rau txhua GDU ntawm cov zaub ntawm chav tsev, cov cuab yeej pabcuam lossis lub cuab yeej PC. Nrog rau qhov chaw nyob yooj yim no, cov ntaub ntawv ntawm Sensor Cartridge muab rau cov tswv yim 1 raug xa los ntawm lub tsheb npav mus rau lub tshuab hluav taws xob. Ib qho ntxiv sensor txuas / sau npe ntawm GDU tau txais qhov chaw nyob tom ntej.
Xaiv cov ntawv qhia zaub mov Chaw nyob thiab nkag mus rau qhov chaw nyob ua ntej raws li Txoj Haujlwm Pabcuam Tsheb npav.
Yog tias qhov kev sib txuas no tsis zoo, koj tuaj yeem nyeem GDU chaw nyob tam sim no hauv cov ntawv qhia zaub mov "Chaw nyob" txawm nyob rau ntawm cov zaub ntawm lub tsev lossis los ntawm kev ntsaws rau hauv cov cuab yeej pabcuam lossis lub cuab yeej PC.
0 = Chaw nyob ntawm GDU XX tshiab = GDU chaw nyob tam sim no (qhov chaw nyob tau tso cai thaj tsam 1 - 96) Cov lus piav qhia ntxaws ntxaws ntawm qhov chaw nyob tuaj yeem raug coj los ntawm cov neeg siv phau ntawv ntawm Chav Tswj Xyuas lossis Cov Chaw Tswj Xyuas Chaw Pabcuam.

Cov ntaub ntawv ntxiv:
www.gdir.danfoss.comhttp://scn.by/krzp87a5z2ak0i

Danfoss A/S Climate Solutions • danfoss.com • +45 7488 2222
Txhua yam ntaub ntawv, suav nrog, tab sis tsis txwv rau cov ntaub ntawv ntawm kev xaiv cov khoom, nws daim ntawv thov lossis kev siv, cov khoom tsim, qhov hnyav, qhov ntev, muaj peev xwm lossis lwm yam ntaub ntawv hauv cov khoom siv hauv phau ntawv, cov lus piav qhia, kev tshaj tawm, thiab lwm yam thiab seb puas muaj nyob rau hauv kev sau ntawv , hais lus, hauv tshuab hluav taws xob, hauv online lossis los ntawm kev rub tawm, yuav tsum suav tias yog cov ntaub ntawv thiab tsuas yog khi yog tias thiab rau qhov twg, cov lus qhia meej yog ua nyob rau hauv cov lus hais lossis kev txiav txim kom pom zoo. Danfoss tsis tuaj yeem lees txais ib lub luag haujlwm rau qhov ua yuam kev hauv phau ntawv teev npe, daim ntawv qhia, yeeb yaj kiab thiab lwm yam khoom siv. Danfoss tseg txoj cai los hloov nws cov khoom yam tsis muaj ntawv ceeb toom. Qhov no kuj siv tau rau cov khoom xaj tab sis tsis xa tawm yog tias cov kev hloov pauv no tuaj yeem ua yam tsis muaj kev hloov pauv rau daim ntawv, haum lossis ua haujlwm ntawm cov khoom. Tag nrho cov cim lag luam hauv cov khoom no yog cov cuab yeej ntawm Danfoss A/S lossis Danfoss pawg tuam txhab. Danfoss thiab Danfoss logo yog cov cim lag luam ntawm Danfoss A / S. Txhua txoj cai.

Cov ntaub ntawv / Cov ntaub ntawv

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Cov ntaub ntawv

• Cov neeg siv phau ntawv