Kohler K-3378-EB, K-3385-EB, K-3402-EB manual Introduction, Theory Of Operation, Toilets

SIPHON VORTEX LOW PROFILE ONE-PIECE

TOILETS

INTRODUCTION

This service instruction will help you understand the opera￿ tion and repair of Kohler low profile one￿piece toilets.

The following models are included in these instructions:

K-3378-EB PILLOW TALK K-3383-EB PALARRE

K-3385-EB ROCHELLE	K-3397-EB SAN RAPHAEL
K-3402-EB RIALTO	K-3408-EB CABERNET

THEORY OF OPERATION

Consider how a low profile, one￿piece toilet differs from the close￿coupled toilet. All the water in a close coupled toilet is held in a tank that is above the rim of the bowl. Water to the rim and jet is supplied by gravity.

On the other hand, a one￿piece toilet holds all the tank water below the rim of the bowl as shown in Fig. #1.

Fig. #1

When the trip lever is actuated, water enters the supply valve and flows to the diverter valve. At this point all line water is diverted to the rim. The tank water is only used to start the water action in the bowl, and to direct water to the upleg of the trapway to start the siphonic action as illus￿ trated in Fig. #2.

Fig. #2

After the flush is completed, the diverter valve directs water to the rim for bowl refill, and to the tank for tank refill.

Since water which only will be directed to the jet is stored in the tank, sufficient water to the rim must be supplied by the supply valve as shown in Fig. #3.

Fig. #3

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