Method of monitoring a transport refrigeration unit and an assoc

Details Method of monitoring a transport refrigeration unit and an assoc Method of monitoring a transport refrigeration unit and an assoc

1995-04-19

1996-12-03

Tanner, Harry B.

Refrigeration

With indicator or tester

Operatively correlated with automatic control

62131, F25B 4902

Patent

active

055796486

ABSTRACT:
A method of monitoring and protecting a transport refrigeration unit and a load in a load space to be conditioned by circulating air between the load space and the transport refrigeration unit. The transport refrigeration unit maintains a selected set point temperature SP in the load space by electrical control which selects cooling and hot gas heating conditioning modes initiated by switching a three-way valve between first and second positions. The method includes the step of detecting a reverse operating mode, wherein the actual conditioning mode is the opposite of the conditioning mode requested by the control means, and the step of pulsing the three-way valve in an attempt to cause the three-way valve, when stuck, to switch to the required position.

REFERENCES:
patent: 4211089 (1980-07-01), Mueller et al.
patent: 4381549 (1983-04-01), Stamp, Jr. et al.
patent: 4790143 (1988-12-01), Hanson
patent: 4939909 (1990-07-01), Tsuchiyama et al.
patent: 4949550 (1990-08-01), Hanson
patent: 5042264 (1991-08-01), Dudley
patent: 5161384 (1992-11-01), Hanson et al.
patent: 5172561 (1992-12-01), Hanson et al.
patent: 5201186 (1993-04-01), Hanson
patent: 5222368 (1993-06-01), Hanson

Affiliated with

Also associated with

Rating

Method of monitoring a transport refrigeration unit and an assoc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of monitoring a transport refrigeration unit and an assoc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of monitoring a transport refrigeration unit and an assoc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-777564