新風機組控(kong)制(zhi)(zhi)包括：送風溫度(du)(du)控(kong)制(zhi)(zhi)、送風相(xiang)對(dui)濕度(du)(du)控(kong)制(zhi)(zhi)、防凍控(kong)制(zhi)(zhi)、CO2濃度(du)(du)控(kong)制(zhi)(zhi)以及各種聯鎖內(nei)(nei)容(rong)。如果新(xin)風機組(zu)要(yao)考慮承擔室內(nei)(nei)負(fu)荷(he)（如直(zhi)流(liu)式機組(zu)），則還要(yao)控(kong)制(zhi)(zhi)室內(nei)(nei)溫度(du)(du)（或室內(nei)(nei)相(xiang)對(dui)濕度(du)(du)）。

新風機組工作原理

1 新風(feng)(feng)機組溫(wen)(wen)(wen)度(du)(du)控(kong)(kong)(kong)制系統是(shi)由比例(li)積分(fen)溫(wen)(wen)(wen)度(du)(du)控(kong)(kong)(kong)制器(qi)、安裝(zhuang)在(zai)送風(feng)(feng)管內的(de)溫(wen)(wen)(wen)度(du)(du)傳(chuan)感器(qi)和電動調(diao)節(jie)閥組成。控(kong)(kong)(kong)制器(qi)的(de)作用是(shi)把(ba)置(zhi)于送風(feng)(feng)風(feng)(feng)道的(de)溫(wen)(wen)(wen)度(du)(du)傳(chuan)感器(qi)所檢測(ce)到(dao)的(de)送風(feng)(feng)溫(wen)(wen)(wen)度(du)(du)傳(chuan)送至溫(wen)(wen)(wen)控(kong)(kong)(kong)器(qi)與控(kong)(kong)(kong)制器(qi)設定的(de)溫(wen)(wen)(wen)度(du)(du)進行(xing)比較(jiao)，并根據PI運算(suan)的(de)結果，溫(wen)(wen)(wen)控(kong)(kong)(kong)器(qi)給電動調(diao)節(jie)閥一個開/關閥的(de)信號，從(cong)而使送風(feng)(feng)溫(wen)(wen)(wen)度(du)(du)保(bao)持(chi)在(zai)所需要的(de)范圍(wei)。

2 電(dian)動調(diao)節(jie)閥(fa)與風(feng)機連鎖，以(yi)保證切斷(duan)風(feng)機電(dian)源時(shi)風(feng)閥(fa)亦(yi)同時(shi)關閉。電(dian)動調(diao)節(jie)閥(fa)亦(yi)可實現(xian)與風(feng)機的(de)聯動（如圖虛線框所(suo)示），當風(feng)機切斷(duan)電(dian)源時(shi)關閉電(dian)動調(diao)節(jie)閥(fa)。上圖中(zhong)兩種連鎖線路(lu)連接方式，分別(bie)用(yong)于斷(duan)電(dian)復(fu)位(wei)(wei)設備和電(dian)關設備，用(yong)戶可據具(ju)體情況自行取舍。（有(you)防凍要求的(de)場(chang)合可通(tong)過行程限(xian)位(wei)(wei)器將熱(re)水閥(fa)位(wei)(wei)保持在要求的(de)開度）。

3 在需要制冷(leng)時，溫(wen)(wen)控(kong)(kong)器(qi)置于(yu)(yu)制冷(leng)模式，當傳(chuan)感(gan)器(qi)測(ce)(ce)量(liang)的(de)(de)溫(wen)(wen)度(du)(du)達到(dao)或低于(yu)(yu)設(she)(she)定(ding)溫(wen)(wen)度(du)(du)時，溫(wen)(wen)控(kong)(kong)器(qi)給(gei)電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)一(yi)個(ge)關(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)信號，電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)關(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)接(jie)點接(jie)通(tong)閥(fa)(fa)(fa)(fa)(fa)(fa)門關(guan)閉(bi)。如果(guo)測(ce)(ce)量(liang)溫(wen)(wen)度(du)(du)沒達到(dao)設(she)(she)定(ding)溫(wen)(wen)度(du)(du)，溫(wen)(wen)控(kong)(kong)器(qi)給(gei)電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)一(yi)個(ge)開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)(fa)信號，電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)(fa)接(jie)點接(jie)通(tong)閥(fa)(fa)(fa)(fa)(fa)(fa)門打(da)開(kai)(kai)。在需要制熱時，溫(wen)(wen)控(kong)(kong)器(qi)置于(yu)(yu)制熱模式，當傳(chuan)感(gan)器(qi)測(ce)(ce)量(liang)的(de)(de)溫(wen)(wen)度(du)(du)達到(dao)或高(gao)于(yu)(yu)設(she)(she)定(ding)溫(wen)(wen)度(du)(du)時，溫(wen)(wen)控(kong)(kong)器(qi)給(gei)電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)一(yi)個(ge)關(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)信號，電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)關(guan)閥(fa)(fa)(fa)(fa)(fa)(fa)接(jie)點接(jie)通(tong)閥(fa)(fa)(fa)(fa)(fa)(fa)門關(guan)閉(bi)。如果(guo)測(ce)(ce)量(liang)溫(wen)(wen)度(du)(du)沒達到(dao)設(she)(she)定(ding)溫(wen)(wen)度(du)(du)，溫(wen)(wen)控(kong)(kong)器(qi)給(gei)電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)一(yi)個(ge)開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)(fa)信號，電(dian)(dian)動(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)(fa)開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)(fa)接(jie)點接(jie)通(tong)閥(fa)(fa)(fa)(fa)(fa)(fa)門打(da)開(kai)(kai)。

4 當過濾網堵(du)塞(sai)時(shi)或當其超過規定值時(shi)，壓差開關給出的開關信(xin)號。

5 當盤管(guan)溫度過低(di)(di)時，低(di)(di)溫防凍開關給出(chu)開關信(xin)號，風機停止運行，防止盤管(guan)凍裂(lie)。