9-5.Operation Check By Pc Board Switch; 9-5-1.Operation Check Mode - Toshiba HWS-803XWHM3-E Service Manual

9-5. Operation check by PC board switch
9-5-1. Operation check mode
This mode allows to check the operations of the water 2-way valve, water 3-way valve, mixing valve, and circulating
pump. This operation is valid when the hydro unit and the outdoor unit are turned on the power.
Operation check mode
(1) Preparation
1) Turn all of the remote controls "OFF" for the hot water supply and heating.
2) Turn off the hydro unit and the outdoor unit.
3) Remove the front panel of the hydro unit.
4) Set SW06_2 "ON".
(2) Operation check
1) Turn on the hydro unit and the outdoor unit.
2) Rotate switch DIP SW01 to position "1" and press tactile switch SW07 for 5 sec. or longer.
3) Rotating the rotary SW01 allows to check each operation.
4) Set the DIP SW06_2 "OFF" to finish.
Rotary
switch
1 None
2WV_W
2
3 3WV_W
Mixing valve
4
5 Built-in AC pump
6 Extended AC pump 1
7 (Extended AC pump 2)
Water heat exchange backup
8
heater
9 Hot water cylinder heater
Backup heater
10
11 Check the alarm output.
12 Check the boiler output.
13 Check the defrost output.
14 Check the operation output.
15 None
Built-in AC pump continuous
16
operation
Check contents
Alive for approx. 2 sec, not alive for 3
sec
Alive for 30 sec in the forward direction
Alive for 30 sec in the reverse direction
Alive / not alive for 20 sec
Alive / not alive for 20 sec
Alive / not alive for 20 sec
Repeat heater 1, heater 2, and OFF
every 20 sec
Alive / not alive for 10 sec
Alive / not alive for 10 sec
Output for 10 sec / no output for 10 sec
Output for 10 sec / no output for 10 sec
Output for 10 sec / no output for 10 sec
Output for 10 sec / no output for 10 sec
Continuously alive
123
Remark
Reserved
The built-in AC pump operates.
The built-in AC pump and external AC pump
operate.
Do not operate the AC pump alive
continuously without any water in hydro unit.