Toshiba RAV-SP454ATZG-E Compressor protective control SP80 only, Start of heating operation

<SP80 only>

1)In heating operation, defrost operation is performed when TE sensor satisfies any condition in A zone to D zone.

2)During defrosting operation, it finishes if TE sensor continued 12°C or higher for 3 seconds or continued 7°C ≤ TE < 12°C for 1 minute. The defrost operation also finishes when it continued for 10 minutes even if TE sensor temperature was 7°C or lower.

3)After defrost operation was reset, the compressor stopped for approx. 40 seconds and then the heating operation starts.

Start of heating operation

TE [˚C] 0 10 15 39 45 55 d [min.]

–2

–5

A zone

–10

B zone

–25

∗ C zone

D zone

∗The minimum TE value and To value between 10 and 15 minutes after heating operation has started are stored in memory as TE0 and To0, respectively.

	In normal To			In abnormal To
A zone	When status (TE0 – TE) – (To0 – To) ≥	3°C		When status (TE0 – TE) ≥	3°C
	continued for 20 seconds			continued for 20 seconds
B zone	When status (TE0 – TE) – (To0 – To) ≥	2°C		When status (TE0 – TE) ≥	2°C
	continued for 20 seconds			continued for 20 seconds
C zone	When the status (TE ≤		–25°C) continued for 20 seconds
D zone	When compressor operation status of TE < –2°C is calculated as d minutes

4)The time of above d can be changed by exchanging jumper [J805] and [J806] of the outdoor control P.C. board.

(Setting at shipment: 150 minutes)

J805	J806	d
¡	¡	150 minutes
		Setting at shipment
¡	×	90 minutes
×	¡	60 minutes
×	×	30 minutes

¡ : Short circuit, × : Open

11.Compressor protective control <SP80 only>

1)This control purposes to raise the operation frequency until 45Hz for 2 minutes in order to protect the compressor (Prevention of oil accumulation in the refrigerating cycle) when the status that the operation frequency is 45Hz or less has continued for 10 hours was calculated. The operation frequency follows the normal indoor command after controlling.

2)Although the compressor may stop by THERMO-OFF control when the room temperature varies and then attains the set temperature by this control, it is not abnormal.

3)During this control works, if stopping the operation by the remote controller, the operation does not continue.

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