Order No: PAPAMY1503095CE Installation Manual Air Conditioner Indoor Unit CS-E12RB4UW CS-E18RB4UW C LO SE Destination USA Canada C LO SE O PE N OF F/O N PO W TIM ER AI ER R SW IN G O PE N Outdoor Unit CU-E12RB4U CU-E18RB4U FAN SPEED AUTO HEAT AIR SW ING COOL DRY FAN O F F/ O N M O DE TEM P AIR SWING POWERFUL/ QUIET FAN SPEED T IM E R ON 1 S ET 2 O FF 3 CA N C EL AC SET CHECK CLOCK RC RESET WARNING This service information is designed for experienced repair technicians only and
11. Installation Instruction 11.1 Indoor Unit 11.1.1 Selecting the Location for the Indoor Unit Obstacles 19 11/16" (500) or more 19 11/16" (500) or more 19 11/16" (500) or more 11 13/16" (300) or less 39 3/8" (1000) or more (Unit: inch (mm)) 96"–118 1/8" (2400 – 3000) Provide a check port on the piping side ceiling for repair and maintenance. Install the indoor unit once the following conditions are satisfied and after receiving the customer approval.
Installation of Indoor Unit 2 3/ 8" (60) 25 9/16" (650) (Ceiling opening) (Unit: inch (mm)) 2 3/8" Drain pipe 20 7/8" (530) (60) (Hanging bolt) CEILING OPENING DIMENSIONS AND HANGING BOLT LOCATION 22 13/16" (580) (Unit size) 20 7/8" (530) (Hanging bolt) 22 13/16" (580) (Unit size) The paper model for installation expand or shrink according to temperature and humidity. Check on dimensions before using it. During the installation, care must be taken Caution not to damage electric wires.
Vacuum drying After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit. The vacuum drying must be carried out by using the service ports of both the liquid and gas side valves. Use two wrenches and tighten with regular torque. CAUTION Do not overtighten, overtightening may cause gas leakage. Piping size 1/4" (6.35 mm) 3/8" (9.52 mm) 1/2" (12.7 mm) 5/8" (15.88 mm) 3/4" (19.05 mm) 11.1.4 Torque 13.3 Ibf•ft [18 N•m (1.8 kgf•m)] 31.0 Ibf•ft [42 N•m (4.
11.1.5 1 Heat Insulation Be sure to perform heat insulation on the drain, liquid and gas piping. Imperfection in heat insulation work leads to water leakage. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 248°F (120°C)). Hose clip (Accessory) Overlap with heat insulator for piping. Band (Accessory) Indoor unit Heat insulator (Local supply) Flexible hose with (The thickness must be at heat insulator least 5/16" (8 mm).) (Accessory) PVC pipe (O.D.
11.1.6 Connecting the Cable to the Indoor Open the control board cover by removing 2 pcs of screw. Unscrew and open the conduit cover upper case. Remove the plug and fix the conduit connector to conduit cover with lock nut. Connecting wire between indoor unit and outdoor unit should be UL listed or CSA approved 4 conductor UL listed or CSA approved 4 conductor wires minimum AWG16 in accordance with local electric codes. Allowable connection cable length of each indoor unit shall be 98.
2 Fitting the decorative panel o Temporarily secure the fixing screws (3 pcs.) before fitting the decorative panel. (For temporarily securing the front grille.) o Place decorative panel on the screws (3 pcs.) before fitting, move decorative panel as illustrated and tighten all the screws (4 pcs.). Securing the tentative fixing screw Approx. 3/4" (20 mm) Piping direction Check beforehand the height from the ceiling to the unit.
11.2 Outdoor Unit 11.2.1 Select the Best Location 11.2.1.1 If an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. There should not be any animal or plant which could be affected by hot air discharged. Keep the spaces indicated by arrows from wall, ceiling, fence or other obstacles. Do not place any obstacles which may cause a short circuit of the discharged air.
11.2.3 11.2.3.1 Connect the Piping Connecting the Piping to Indoor Unit Please make flare after inserting flare nut (locate at joint portion of tube assembly) onto the copper pipe. (In case of using long piping) Connect the piping Align the center of piping and sufficiently tighten the flare nut with fingers. Further tighten the flare nut with torque wrench in specified torque as stated in the table. 11.2.3.2 Do not overtighten, overtightening may cause gas leakage Piping size 1/4" (6.
11.2.4 Evacuation of the Equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in the following procedure. Liquid side Indoor unit Outdoor unit Two-way valve Close Gas side Three-way valve Close Vacuum pump 1 2 3 4 5 6 7 8 Connect a charging hose with a push pin to the Low side of a charging set and the service port of the 3-way valve. Connect the micron gauge between vacuum pump and service port of outdoor units.
9 Secure the wire onto the control board with the holder (clamp). 10 After completing wiring connections, reattach the particular plate and control board cover (metal and plastic) to the original position with the screws. 11 For wire stripping and connection requirement, refer to instruction 11.1.6 of indoor unit. Terminal Board Ground wire longer than other AC wires for safety reasons Ground wire longer than other AC wires for safety reasons WARNING This equipment must be properly earth grounded.
11.2.7 Disposal of Outdoor Unit Drain Water If a drain elbow is used, the unit should be placed on a stand which is taller than 1-3/16" (3 cm). If the unit is used in an area where temperature falls below 32°F (0°C) for 2 or 3 days in succession, it is recommended not to use a drain elbow, for the drain water freezes and the fan will not rotate. Drain elbow 11.2.8 Hose Install the hose at an angle so that the water smoothly flows out.
