Sanyo XS1852 - Manual

6 S4359128 Out-doorunit Heat source Hot air Exhaust fan 1817_C_I NO Fig. 2-2 Min. 7 ft. (2 m) Min. 7 ft. (2 m) Min. 6 in. (15 cm)Air intake Ground Obstacle Obstacle above Air discharge 1819_M_I Air intake Min. 6" (15 cm) Air discharge Min. 6" (15 cm) Min. 12" (30 cm) Valve sideMin. 10...

7 S4359128 Fig. 3-1 Fig. 3-2 Hole-in-anchorHole-in-plug Concrete Insert Suspension bolt (M10 or 3/8")(field supply) 0038_T_I Fig. 3-3 0962_S_I A (ceiling opening dimension) 820 (ceiling opening dimension) B (suspension bolt pitch) Unit: inch Refrigeranttubing side 1/2" Drain hoseside 590 (su...

8 S4359128 3-3. Placing the Unit Inside the Ceiling (1) When placing the unit inside the ceiling, deter- mine the pitch of the suspension bolts using the supplied full-scale installation diagram. (Fig. 3-4) The size of the opening for the indoor unit can be confirmed by attaching the full-scale inst...

9 S4359128 3-4. Installing the Drain Piping (1) Prepare standard hard PVC pipe (O.D. 1-3/64 in.) for the drain and use the supplied drain hose and hose band to prevent water leaks. The PVC pipe must be purchased separately. The transparent part allows you to check drain- age. (Fig. 3-6) Tighten the ...

10 S4359128 3-5. Checking the Drainage After wiring and piping are completed, use the follow- ing procedure to check that the water will drain smoothly. For this, prepare a bucket and wiping cloth ready to catch and wipe up spilled water. Do not supply power to the unit until the tubing and wiring t...

S4359128 15 4. How to Install the Remote Control Unit ■ Wireless Remote Control Unit The remote control unit can be operated from either anon-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly,do not install the remote control unit in the followingplaces...

16 S4359128 ■ Wired Remote Control Unit (Option) (1) To access the printed circuit board, remove the cover plate of the electrical component box. (2) Attach the remote control connectors securely to the mating connector pins on the printed circuit board. (3) Turn the R.C.U. switch from “WIRELESS” to...

18 S4359128 6. Electrical Wiring 6-1. General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclusively for each unit, and a power supply ...

S4359128 19 ● Conduit's trade size for this unit is 1/2". Theconduit can be purchased at a hardware store. ● The fuse located in the outdoor unit providespower supply protection and may blow whenpower is applied if the system has beenincorrectly wired. (5) Ground the unit in accordance with loca...

20 S4359128 Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, ensure that all wiring is tightly connected. When connecting each power wire to the correspond- ing terminal, follow the instructions on “How to connect wiring to the t...

S4359128 21 7. How to Process Tubing The narrow tubing side is connected by flare nut, andthe wide tubing side is connected by brazing. 7-1. Use of the Flaring MethodMany of the conventional split system air conditionersemploy the flaring method to connect refrigerant tubeswhich run between indoor a...

22 S4359128 7-4. Precautions during Brazing ● Replace air inside the tube with nitrogen gas to prevent copper oxide film from forming during the brazing process. ● Do not allow the tubing to get too hot during the brazing process. The nitrogen gas inside the tubing may overheat, causing refrigerant ...

S4359128 23 Because capillary tubing is installed in the outdoor unit, both the wide and narrow tubes of this air conditioner become cold. Therefore, to prevent heat loss and wet floors due to dripping of condensation water, both tubes must be well insulated with proper insulation material. The thic...

24 S4359128 CAUTION 8. 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 f...

S4359128 25 (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 degress (1/4 turn) for 10 seconds, and then turn the stem clockwis...

26 S4359128 9. Test Run 9-1. Performing Test Run Be careful since the fan will start when performing Test Run. (1) The Operation Selector is located on the electrical component box inside the indoor unit. To access the Operation Selector, press the two latches of the air intake grille in the directi...

S4359128 27 9-3. Basic Function of the Service Valves The basic function of the service valves are given in Table 7 below. Action Narrow Tube Service Wide Tube Service Valve (2-Way) Valve (3-Way) 1826_M_I Valve cap Stem O-ring 1827_M_I 1828_M_I 1829_M_I 1830_M_I ∗ 1831_M_I 1832_M_I ∗ 1833_M_I Shippi...