1. N ra ai
Hpa majaw nga yang, n-gun n rawng ai (sh) n kaja ai hku katsi ai (sh) pipe hpe pat shingdang ai lam n byin hkra, cooler n galaw hpang shi yang, n-gun yawm mat ra ai. Dai zawn re ai bungli gaw hka pump hte unit hpe shawng galaw hpang nna, hka hpe hka n-gun n-gun n-rawng hkra hpaw nna, hka hpe hka n-gun hpe pat kau nna, cooler main motor hpe hpaw nna, cooler hpe aten ladaw langai mi tup shinggrup nna, vent valve hpe n-gun n-rawng hkra hpaw na matu re. Hpang na lahkam hpe exhaust ngut ai hpang galaw mai ai.
2. Yu
Dai cooler hpe lang ngut ai hpang, load test galaw ra ai, ngu ai gaw, load hpe loi loi hte jat wa hkra, cooler gaw rated load state de loi loi hte du lu ai. Chyam dinglik ai aten hta, katsi ai shara a bungli galaw ai lam hpe madun ai lam amyu myu gaw, nbung katsi ai, n-gun, hka lwi ai, etc.
3. Flushing
Load test galaw ngut ai hpang, cooler kata hta n san seng ai lam ni hte n san seng ai lam ni hpe shinggyin la lu na matu, hka lim ai bungli hpe tup hkrak galaw ra ai. Hka kata na valve hpe pat kau nna, hka htung hpe hpaw nna, hka htung hka hpe hka ja kau nna, hka shang ai valve hte hka htung valve hpe hpaw nna, san seng ai hka hte hka lim ai.
4. Debugging
Load test hte flushing ni hpe ngut kre ngut ai hpang, debugging galaw ra ai. Debugging galaw ai aten hta, startup sequence hpe myit maju jung ra ai, shang wa ai hte pru wa ai hka n-gun hpe gram lajang ai, hka n-gun hpe jep yu ra ai, etc. Grau nna, katsi ai ni a matu (sh) lang ai ni a shara hta, ra sharawng ai ni (sh) hka pump zawn re ai ahkyak ai daw ni hpe galai shai ai shaloi, n-gun rawng ai hku galaw lu na matu, hkum tsup ai debugging hte testing hte chyam dinglik ai lam ni hpe galaw ra ai.