Controller for air conditioner

Details Controller for air conditioner Controller for air conditioner

1995-04-18

1996-10-01

Lopez, F. Daniel

Heat exchange

With timer, programmer, time delay, or condition responsive...

Having heating and cooling capability

165253, 62158, 62160, 236 46R, F25B 2900

Patent

active

055604226

ABSTRACT:
A controller for an air conditioner is provided wherein an operation mode is not unnecessarily changed in accordance with variations in temperature. When room temperature t is in a range of T+3.0>t.gtoreq.T+1.5, and when a timer expires (steps 212, 214), it is determined whether the room temperature has a tendency to fall (step 218). When the room temperature has a tendency to fall, it is predicted that the room temperature will be in an observing region although the operation mode is not changed. For this reason, the current operation mode is kept. On the other hand, when the room temperature does not have a tendency to fall, a cooling mode is set (step 210). Further, when the room temperature t is in a range of T-3.0<t.ltoreq.T-1.5, and when the timer expires (steps 222, 224), it is determined whether the room temperature has a tendency to rise (step 228). When the room temperature has a tendency to rise, it is predicted that the room temperature will be in the observing region although the operation mode is not changed. For this reason, the current operation mode is kept. On the other hand, when the room temperature does not have a tendency to rise, a heating mode is set (step 230).

REFERENCES:
patent: 4265299 (1981-05-01), Harnish
patent: 4460123 (1984-07-01), Beverly
patent: 4661914 (1987-04-01), Molokey et al.
patent: 4674027 (1987-06-01), Beckey
patent: 4734871 (1988-03-01), Tsunoda et al.
patent: 4841738 (1989-06-01), Katsuki et al.
patent: 4903498 (1990-02-01), Hanson
patent: 5323619 (1994-06-01), Kim
patent: 5395042 (1995-03-01), Riley et al.

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