Sanyo C1251 - Manual

5 Fig. 5b 2-2. Outdoor Unit AVOID: ● heat sources, exhaust fans, etc. (Fig. 4) ● damp, humid or uneven locations. DO: ● choose a place as cool as possible. ● choose a place that is well ventilated. ● allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig. 5a) Outdoo...

6 Set screw only for transportation Fig. 6 Rear panel ▲ marks Fig. 7 Left tubing Right tubing Downward tubing Right-rear tubing(recommended) Left-rear tubing Fig. 8a 3. How to Install the Indoor Unit 3-1. Remove the Rear Panel from the Unit (1) Remove and discard the set screw on the rear panel. (Fi...

9 3-5. Shape the Indoor Side Tubing 1) Arrangement of tubing by directions a) Right or left tubing Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. 20 and 21) b) Right-rear or left-rear tubing In this case, the corner of the frame need not be cut. 2) To mount the indoor ...

15 4. How to Install the Outdoor Unit First refer to Section 2. Installation Site Selection. 4-1. Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local electrical codes. Make sure that the install...

16 Deburring Before After Fig. 42 Reamer Coppertubing Fig. 43 Flare tool Flare nut Copper tubing Fig. 44 Apply refrigerant lubricant here and here Fig. 45 Flare nut Union Fig. 46 5. Refrigerant Tubing 5-1. Use of the Flaring Method Many of the conventional split system air conditioners employ the fl...

17 5-4. Connecting Tubing between Indoor and Outdoor Units a) Tightly connect the indoor side refrigerant tubing extend- ed from the wall with the outdoor side tubing. (Fig. 47) b) To fasten the flare nuts, apply specified torque as: Table 5 5-5. Insulation of Refrigerant Tubing To prevent heat loss...

18 6. Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely. ● pressure in the system rises ● operating current rises ● cooling (or heating) efficiency drops ● moisture in the air may freeze and block c...

19 (5) With the vacuum pump still running, close the “Lo” knob of the manifold valve. Then stop the vacuum pump. (6) With the accessory hex wrench, turn the valve stem on the narrow tube service valve counter- clockwise by 90 degrees (1/4 turn) for 10 seconds, and then turn the stem clockwise to clo...

21 ■ Pump Down Pump down means collecting all refrigerant gas in the system back into the outdoor unit without losing any of the gas. Pump down is used when the unit is to be moved or before servicing the refrigerant circuit. Pump Down Procedure Be sure to carry out pump down with the unit in coolin...

22 7. Remote Control Unit Installation Position The remote control unit can be operated from either a non-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, do not install the remote control unit in the following places: ● In direct sunlight ● Behind a ...