Haier 2HUM14HB03 User Manual - Page 3

Outdoor unit A 1 2 3(C) Indoor unit A ı4G0.75mm2 Outdoor unit B 1(N) 2(L) 3(C) 1 2 3(C) ı 4G0.75mm2 1(N) 2(L) 3(C) Indoor unit B ^POWER Power cable: ı 3G*2.5mm2 H2SM-(7+7)H03/R2(DB) 2HUM14H03/R2(DB) Indoor unit A Outdoor unit A Indoor unit B Outdoor unit B 1(N) 2(L) 3(C) 1(N) 2(L) 3(C) Power cable: ı 3G*2.5mm2 ^POWER 2HUM14HA03/R2(DB) HSM09HEK03/R2(DB) HSM12HEK03/R2(DB) 2HUM14HB03/R2(DB) HSM07HEK03/R2(DB) HSM09HEK03/R2(DB) HSM12HEK03/R2(DB) 2HUM18HB03/R2(DB) 1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person. The type of connecting wire is H05RN-F or H07RN-F. 2. If the fuse on PC board is broken please change it with the type of T.3.15A/250VAC (Indoor), T.25A/250VAC (Outdoor). 3. The wiring method should be in line with the local wiring standard. 4. After installation, the power plug should be easily reached. 5. A breaker should be incorporated into fixed wiring. The breaker should be all-pole switch and the distance between its two contacts should be not less than 3mm. Outdoor unit  Installation of Outdoor Unit Install according to Drawing for the installation of indoor and outdoor units  Connection of pipes ƽ To bend a pipe, give the roundness as large as possible not to crush the pipe , and the bending radius should be 30 to 40 mm or longer. ƽ Connecting the pipe of gas side first makes working easier. ƽ The connection pipe is specialized for R410A. Half union Flare nut Forced fastening without careful centering may damage the threads and cause a leakage of gas. Pipe Diameter(ǿ) Fastening torque Liquid side6.35mm(1/4") 18N.m Liquid/Gas side9.52mm(3/8") 42 N.m Spanner Torque wrench Gas side 12.7mm(1/2") Gas side 15.88mm(5/8") 55N.m 60 N.m Be careful that matters, such as wastes of sands, etc. shall not enter the pipe. The standard pipe length of each indoor unit is 5m. If total pipe length is over 20m, the function of the unit will be affected, charge more refrigerant is needed, according to 20 g/m. But the charge of refrigerant must be conducted by professional air conditioner engineer. Before adding additional refrigerant, perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then charge additional refrigerant. CAUTION Indoor unit B1 A1 B2 Indoor unit A2 Outdoor unit B1 Indoor unit A1 A2 Outdoor unit B2 Indoor unit Outdoor unit Indoor unit B1 A3 Indoor unit B2 Outdoor unit B A Oil trap Indoor unit Max.Elevation: A1 max =15m A2 max =15m A3 max =15m In case the elevation A is more than 5m, oil trap shoud be installed every 5~7m Max. Length: B1 max =20m B2 max =20m (B1+B2) max =30m In case the pipe total length (B1+B2) is more than 20m, the refrigerant should be charged, according to 20 g/m.  Connection ƽ Use the same method on indoor unit. Loosen the screws on terminal block and insert the plugs fully into terminal block, then tighten the screws. ƽ Insert the cable according to terminal number in the same manner as the indoor unit. ƽ If wiring is not correct, proper operation can not be carried out and controller may be damaged. ƽ Fix the cable with a clamp.  Attaching Drain-Elbow ƽ If the drain-elbow is used, please attach it as figure. (Note: Only for heat pump unit.)  Purging Method:To use vacuum pump 1. Detach the service port's cap of 3-way valve, the valve rod's cap for 2-way valve and 3-way's, connect the service port into the projection of charge hose (Iow) for gaugemanifold. Then connect the projection of charge hose (center) for gaugemanifold into vacuum pump. 2. Open the handle at Iow in gaugemanifold, operate vacuum pump. If the scale- moves of gause (Iow) reach vacuum condition in a moment, check 1. again. 3. Vacuumize for over 15min.And check the level gauge which should read -0.1MPa (76 cm Hg) at Iow pressure side. After the completion of vacuumizing, close the handle 'Lo' in gaugemanifold and stop the operation of the vacuum pump. Check condition of the scale and hold it for 1-2min. If the scale-moves back in spite of tightening, make flaring work again, the return to the beginning of 3 . 4.Open the valve rod for the 2-way valve to an angle of anticlockwise 90 degrees. After 6 seconds, close the 2-way valve and make the inspection of gas leakage. 3