Sanyo CHDZR14053, XMHX1252, XMHX1852, CHDZR09053, 85464369098000 3WAYECO-iUS.indd 2008/02/07

CAUTION

●Do not install an air bleeder as this may cause water to spray from the drain pipe outlet. (Fig. 3-64)

●In cases where it is necessary to raise the height of the drain piping, the drain piping can be raised to a maximum height of 33-15/32" above the bottom surface of the ceiling. Under no conditions attempt to raise it higher than 33-15/32" above the bottom surface of the ceiling. Doing so will result in water leakage. (Fig. 3-65)

●Do not use natural drainage.

●Do not install the pipe with an upward gradient from the connection port. This will cause the drain water to flow backward and leak when the unit is not operating. (Fig. 3-66)

●Do not apply force to the piping on the unit side when connecting the drain pipe. The pipe should not be allowed to hang unsupported from its connection to the unit. Fasten the pipe to a wall, frame, or other sup- port as close to the unit as possible. (Fig. 3-67)

●Provide insulation for any pipes that are run indoors.

3-17. Checking the Drainage

After wiring and drain piping are completed, use the following procedure to check that the water will drain smoothly. For this, prepare a bucket and wiping cloth to catch and wipe up spilled water.

(1)Connect power to the power terminal board (R, S terminals) inside the electrical component box.

(2)Slowly pour approx. 0.2 gal of water into the drain pan using a siphon pump through the air outlet grille. (Fig.

3-68)

(3)Short the check pin (CHK) on the indoor control board and operate the drain pump. Check the water flow through the transparent drain pipe and see if there is any leakage.

Air bleed valve

Fig. 3-64

A

11-13/16 in. or less

33-15/32 in. or less

0 – 45°

* Length of supplied drain hose = 9-27/32 in.

Fig. 3-65

Uphill slope

Fig. 3-66

Support bracket

Fig. 3-67

Drainage check

Drain tube connection (transparent)

Discharge port

water (approx. 0.2 gal)

CAUTION

Be careful since the fan will start when you short the pin on the indoor control board.

Fig. 3-68

(4)When the drainage check is complete, open the check pin (CHK) and remount the insulator.

CAUTION

The bottom drain port is for use only during test runs and servicing inspections. Do not connect the drain pipe to the bottom drain port.

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