Heat exchange unit amyu myu nga ai, n bung ai heat exchange unit ni hta n bung ai arawn alai ni nga ai rai nna, aten n bung ai. Unman lawm ai heat exchange unit gaw heat exchange law law kaw na langai sha rai nna, shi a akyu ara ni hte lang ai ni hpe masat masa lu la sai rai nna, gat lawk hta grai jai lang nga ai. Raitim, masha n lawm ai nbung laru galai ai shara ni hpe galaw ai hte galaw ai hta, hkrat sum ai lam hpe shayawm na matu hte daw jau ai prat hpe jat wa na matu, ra kadawn ai gram lajang ai lam ni hpe n mai garan ginhka ai.
Aten tup jep joi ai lam ni.Heat galai shai ai unit a daw yawng gaw, n-gun n rawng ai nsen, n-gun n rawng ai, n-gun n rawng ai nsen ni, n-gun n rawng ai lam ni n nga ai hpe jep yu u. Instruments hte sensors ni gaw, thermometer, pressure gauges, flow meters, etc. zawn re ai ni hpe hkrak hkrak rai nna kam mai ai hpe jep yu u.Dai hta n-ga, circuit, hpaw da ai circuit, shing nrai, n kaja ai matut mahkai lam n nga ai hpe kam na matu, cable, junction box, control cabinet, etc. ni lawm ai, wan n-gun system hpe jep yu u. Pipe ni hte valve ni hpe yu nna, pat shingdang ai lam, hka lim ai lam, n-gun n rawng ai lam n nga ai hpe jep yu u.
San seng ai hte gram lajang ai.Hka lum ai shara hpe yeng seng kau na matu, n-gun galai shai ai atsam hpe grau kaja hkra galaw na matu, n-gun n-gun hte n-gun dat ni hpe yeng seng kau na matu, heat exchanger hpe ayan jasan jaseng ai. San seng ai ladat ni hta hkum hkrang hpe jasan jaseng ai hte chemical hpe jasan jaseng ai lam ni lawm nna, dai laksan lata ai lam hpe nhprang arai hte n-gun n-gun hte maren dawdan ra ai. Dai unit a grup yin hpe san seng hkra galaw u, n-gun n rawng ai lam n nga ai sha, nbung n-gun yawm mat ai lam hte n-gun n-gun hpe n hkra hkra galaw u.
Lubrication hte gram lajang ai lam.Bearing, gear, etc. zawn re ai sau ra ai arung arai ni a matu, sau hpe atsawm sha jat bang ra ai (sh) galai shai ra ai, dai hku galaw yang, sau hpe atsawm sha bang ra ai, n-gun shayawm lu na matu hte n-gun yawm mat hkra shayawm ra ai. Dai nta kata na magri daw ni a matu anti{2}}corrosion tsi lajang ai lam hpe gun hpai nna, n-gun n rawng ai nsam hpraw ai nsam hte sumla ka ai, anti-corrosion layers ni hpe jung da ai, etc., ni hpe daw jau ai prat hpe galu kaba wa hkra galaw u.
Fault ana hpe jep chyoi ai hte yeng seng kau ai.Dai ni na aten na yu reng ai hpaji masa hte hpaji rawng ai ana jep chyoi ai ladat ni hpe aten dep yu reng na matu jai lang nna, mara hpe sadi jaw ai lam ni hpe jaw ya ai majaw, byin mai ai manghkang ni hpe lawan ladan mu tam lu nna hparan lu na matu ahkang jaw ai. Dai unit hta mara langai byin wa ai shaloi, lawan ladan masing jahkrat ra ai, dai unit hpe jep yu nna gram lajang na matu, mara galaw ai lam hpe hkan sa ra ai. N mai hparan ai yak hkak ai mara ni a matu, gram lajang ai ni hpe gram lajang na matu lawan ladan matut mahkai ra ai.
Tsun ga nga yang, bungli galaw ai aten hta masha n lawm ai heat exchange unit ni hpe gram lajang ai lam hte yu lanu lahku ai lam gaw, unit a ngang grin ai bungli hpe galaw lu na matu, lam amyu myu hpe myit yu ra ai. Dai hta n-ga, anhte a company a madung arung arai langai hku nna, masha n lawm ai nbung laru galai shai ai nta ni gaw, jai lang ai ni a ra kadawn ai lam ni hte maren, atsam rawng ai hte sut masa lam hta n-gun rawng ai nbung laru galai shai ai lam ni hpe hpaji jaw nna jaw ya lu ai sha n-ga, jai lang ai ni a matu masha n lawm ai nbung laru galai shai ai nta ni a lam hpe grau nna chye na lu na matu mung, masha n lawm ai nbung galai shai ai lam hpe jai lang na matu mung karum ya lu ai.