Toshiba HWS-G2601ENXR-E - PV ECO Operation in AUTO Mode

Domestic Hot Water Heat Pump Service Manual
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7.10.1 PV ECO operation in AUTO mode
When the photovoltaic mode is set to PV ECO and the DHW-HP mode is set to AUTO, there is no
operation of the electrical heater, even if the 0~10V input rises above the D21 (PV Min Voltage EL)
set point.
 0~10V input raised in small steps until >5V, set from D20 (PV Min Voltage HP)
 HP starts after 5 minutes delay, set from D22 (PV Min Time)
 In ECO / AUTO mode the heater should not operate, Voltage raised to >8V D21 (PV Min Voltage
EL)
 0~10V input decreased until <5V, set from D20 (PV Min Voltage HP)
 HP stops after 5 minutes delay, set from D22 (PV Min Time)
Note: If water set point temperature is achieved then the heat pump stops operation.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
0
10
20
30
40
50
60
70
80
90
00:00:00 00:01:20 00:02:40 00:04:00 00:05:20 00:06:40 00:08:00 00:09:20 00:10:40 00:12:00 00:13:20 00:14:40 00:16:00 00:17:20 00:18:40 00:20:00 00:21:20 00:22:40 00:24:00 00:25:20 00:26:40 00:28:00 00:29:20 00:30:40 00:32:00 00:33:20 00:34:40 00:36:00 00:37:20 00:38:40 00:40:00 00:41:20 00:42:40 00:44:00 00:45:20 00:46:40 00:48:00 00:49:20 00:50:40 00:52:00 00:53:20 00:54:40 00:56:00 00:57:20 00:58:40 01:00:00 01:01:20 01:02:40 01:04:00 01:05:20 01:06:40 01:08:00
Voltage
Temperature
Time
T3 T water top R3 Fan R4 HP
R5 El heater V in (0-10V)
Fan Off
Fan On
HP Off
HP On
El H Off
El H On
Fan Off
Fan On
HP Off
HP On
El H Off
El H On
Fan Off
Fan On
HP Off
HP On
El H Off
El H On
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