Sanyo CHDX09663, CHDXR07263, CHDXR09663, CHDX07263 service manual Test Pin, Output Operation

	W-2WAY ECO-i SYSTEM
7. Test Pin	Trouble Diagnosis

When the test pin on the outdoor unit control PCB is short-circuited, each part can be operated individually.

•After turning OFF the main unit power, short circuit the test pin (CN022, WHT), then turn the power back ON. Output is performed in the sequence shown in the table below, for 0.5 seconds each.

	Output	Operation		Output	Operation
1	Relay RY024	4-way valve (205)	11	Relay RY012	Save valve (SAVE)
2	—	—	12	—	—
3	—	—	13	Relay RY003	Crank case 2 (CH2)
4	—	—	14	Relay RY002	Crank case 1 (CH1)
5	Relay RY005	Bypass valve (BPV)
6	Relay RY007	Recovery valve (ORVR)
7	—	—
8	—	—
9	Relay RY017	Refrigerant balance valve (RBV)
10	Relay RY016	Refrigerant adjustment valve (RCV)

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