| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that control can not be performed based on the essential performance when a user or a service man alters the air conditioning capacity after shipment from a factory. SOLUTION: When an up key 53 or a down key 54 is pushed, a settable format is indicated at an indicating section 51. When a set key 55 is pushed for 1 sec or longer while indicating a formed to be set, that format is fixed definitely. In case of an air conditioner employing refrigerant of R22, the refrigerant can be altered to R407C. When a substrate for which the capacity is not yet set is supplied at the time of replacing the substrate, all controllable machine types can be dealt with by that substrate. |
