Title:
HOT AIR HEATER
Document Type and Number:
Japanese Patent JP2016161218
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hot air heater capable of improving a control stability of a rotating speed of a combustion fan even when a fan motor shows an individual difference.SOLUTION: A supply current against a fan motor 14 is controlled by a fan control part 31 constituting a control device 7 to a set value corresponding to each of 1 to 12 speeds, P2 speed, and P3 speed. In this case, the supply current for the fan motor 14 is corrected under a condition that an actual rotating speed R of a blower fan 3 is out of a range of a target speed. A range of a target speed range S2 corresponding to the P3 speed [at least one target rotating speed at the time of stoppage of combustion of the gas burner 4] is set to be wider than that of the target speed range corresponding to each of 1 to 12 speeds.SELECTED DRAWING: Figure 3
Inventors:
TANAKA SHUN
UEGAKI DAIKI
UEGAKI DAIKI
Application Number:
JP2015040754A
Publication Date:
September 05, 2016
Filing Date:
March 02, 2015
Export Citation:
Assignee:
RINNAI KK
International Classes:
F24H3/04; F23N3/08; F23N5/18
Domestic Patent References:
| JPH11159880A | 1999-06-15 | |||
| JP2014134368A | 2014-07-24 | |||
| JP2002277060A | 2002-09-25 |
Attorney, Agent or Firm:
Creation International Patent Office