GAWO 15xxx
ZINTHU ZODZIWA ZINTHU ZONSE ZA MPHAMVU WONSE WA GESI.
(Malinga ndi ASHRAE 62.1, Ma Code of Building Local ndi oyenera ku Nyumba za Maofesi, Sukulu, Nyumba Zowonetsera, Zipatala ndi Malo Ogulitsiramo).
1.0 KWAMBIRI
1) Perekani kukhazikitsa kwathunthu kwa Carbon Dioxide - CO2 - makina ozindikira gasi okhala ndi Kutentha ndi Relative Humidity sensors ndi zida zomveka / zowoneka bwino zomwe zimalumikizidwa ndi Controller Unit (Stand-alone system) kapena Building Automation System (BAS) .
2) Dongosololi liphatikizepo, koma osangokhala, izi:
- Kukula kwamtsogolo
- Kuwonetsa kwa CO2 concentration
- Kutha kusintha ma alarm set point
- Daisy-chain luso
2.0 Zogulitsa
2.01 KUDZIWA KWAMBIRI - IAQPOINT
A. Mtundu wa zida za analogi uzitha kulumikizana ndi chizindikiro cha 4-20 mA kudzera pa mawonekedwe a RS485 mwina kwa VA301C Controller kapena BAS. Mtundu wa digito wozindikira wagawo uzitha kulumikizana ndi BAS pogwiritsa ntchito protocol ya BACnet MS/TP, Modbus kapena LON. Chowunikiracho chidzagwiritsa ntchito ukadaulo wa Dual-Channel Non-Dispersive Infrared sensing (NDIR) ndikutha kuyang'anira kuchuluka kwa Carbon Dioxide (CO2) mkati mwa migawo iwiri: 0-2000 ppm kapena 0-10 000 ppm (wosankha). Idzakhala ndi nthawi yoyankha yosakwana masekondi 60 pakusintha kwa 90%.
B. Chowunikirachi chizithanso kuyang'anira nthawi imodzi kutentha (mu Celsius kapena Fahrenheit) ndi Relative Humidity kuwonjezera pa Carbon Dioxide. Kutentha kuzikhala mkati mwa -4 mpaka 122 ° F (-20 mpaka 50 ° C) ndipo chinyezi chizikhala mkati mwa 0 mpaka 95%. Idzakhala ndi mapazi osapitirira 3.9×2.5×1.2” (99×63.5×30.5 mm). Idzayikidwa mosavuta mu bokosi lamagetsi ikayikidwa pakhoma ndipo imalemera 0.44 lb (200 g). Idzakhala ndi mtundu wa duct-mount womwe umakhala wolemera 0.66 lb (300 g) ndipo umalola kuyika kosavuta komanso kosavuta kwa s.ampmachubu ndi.
C. Mphamvu za chowunikira ndi 20 mpaka 30 Vac kapena 18 mpaka 30 Vdc, 0.5 A, 50/60 Hz. Mtundu wake wa digito uyenera kukhala ndi zowonetsera za LCD 122 x 32 ndipo zitha kusinthidwa ndi mabatani atatu kutsogolo. Iloleza kusankha kwa ma baud mitengo pakati pa 4800, 9600, 38400 kapena 57600 Bd.
Mulingo wa alarm wa sensor uyenera kutsegulidwa pamlingo wotsatira:
| Ikani mfundo | Malo a Sensor | Zolemba | |
| Mpweya woipa (CO2) | 800 ppm | 5 ft (1.5 m) kuchokera pansi | 20 ft (6 mamita) |
Malingaliro a Local Building Codes amakonda kuposa izi. Kufalikira kungasiyane malingana ndi ntchito.
2.02 MLANGIZI VA301C (Ngati njira yodziyimira yokha)
A. Gulu lowongolera liyenera kukhala lotha kulumikizana ndi digito ndi ma transmitter olumikizidwa ndi netiweki ndi ma modules kudzera pa RS-485 Modbus kulumikizana mabasi. Basi iliyonse yolumikizirana iyenera kuvomereza kuphatikiza ma transmitters ofikira 32, ma module a relay kapena mapanelo a annunciator pamtunda wopitilira 2000′. Mphamvu imodzi yomwe imabweretsa 17-27Vac kapena 24-38 Vdc (nthawi zonse muzilemekeza mphamvu zochepatage zofunika pa chipangizo) adzakhala okwanira mphamvu zonse gasi kudziwika maukonde kuphatikizapo wolamulira ndi masensa.
B. Gulu lowongolera lidzawongolera ma relay anayi amkati a DPDT pamlingo wokonzekera bwino (ndi mkati mwa kuchedwa kwa nthawi) ndikutha kuyambitsa ma module angapo a relay asanu ndi atatu iliyonse. Ma relay sakhala otsika kuposa 5 A, 30 Vdc kapena 250 Vac resistive load. Gulu lowongolera liyenera kukhala ndi ntchito yoyeserera yomwe imalola kuti zotuluka zonse zomwe zakonzedwa zitsegulidwe poyesa kuchulukitsa kosalekeza kwa 5% / kutsika mtengo mpaka mtengo wocheperako / wocheperako wafika.
C. Gulu lowongolera liyenera kukhala ndi wotchi yanthawi yeniyeni yomwe imalola kuti zotulukazo zizigwira ntchito munthawi yake. Gulu lowongolera liyeneranso kukhala ndi gawo lopulumutsa mphamvu lomwe limalola kuti pakhale ntchito yotulutsa ma alarm omwe amayikidwa pamlingo wokulirapo, min kapena mtengo wapakati wa gulu linalake la ma transmitters. Izi ziyenera kulola kutsegulira kwa zotuluka pagulu linalake (3/4, 1/2, 1/3, ndi 1/4) la ma transmitter omwe amafika ma alarm awo. Magulu onse a 128 atha kuperekedwa.
D. Gulu lowongolera lidzatha kuyankhulana ndi gulu la annunciator lomwe lingakhale ngati gulu lowonetsera kutali mu chipinda chowongolera chachiwiri. Gulu lowongolera lidzawonetsa kuchuluka kwa gasi, mpweya womwe wapezeka, ndi malo a sensor posesa pamaneti ndikuwonetsa magawo omwe apezeka pamalo aliwonse pazithunzi za LCD. Kukhoza kudula deta kuyenera kupereka kudulidwa kwa deta kwa nthawi yaitali kuti mudziwe zomwe zikuchitika. Gulu lowongolera liyenera kutolera deta yokha ndipo lizisunga pamakhadi amtundu wa Flash media.
2.03 ZOCHITIKA
A. Zosintha Mphamvu
B. Zina
3.00 KUTHETSEDWA
KUKHALA KWA 3.01
Ikani makina a Indoor Air Quality monitoring system monga momwe zasonyezedwera mu Contract Drawings komanso monga momwe wopanga zida akulimbikitsira mu Buku la Ogwiritsa Ntchito komanso mogwirizana ndi Ma Code Local.
3.02 NTCHITO YA NTCHITO
Pamene njira yowunikira ya IAQ ipeza mulingo wa CO2 pamwamba pa malo oikika, mpweya wabwino udzafalikira kudzera mu mpweya wofunikira womwe umayendetsedwa. Mpweya watsopano udzafalikira kudzera m'madera a nyumbayo omwe ali ndi CO2 yapamwamba kwambiri, motero kuchepetsa kufunika kwa mpweya wabwino ndi mpweya wakunja kupita kuzinthu zamkati.
3.03 KUPEREKA
Tsatirani malangizo a wopanga zida mu Bukhu Logwiritsa Ntchito.
3.04 CHISINDIKIZO.
IAQPoint ili ndi chitsimikizo chochepa cha zaka 5.
KUTHA KWA GAWO
Zolemba / Zothandizira
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Honeywell VA301C Indoor Air Quality Detection System [pdf] Buku la Mwini VA301C, IAQPOINT, VA301C Indoor Air Quality Detection System, Indoor Air Quality Detection System, Air Quality Detection System, Gas Detection System, Detection System |
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