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

Domestic Hot Water Heat Pump Service Manual
26
7.10.2 PV ECO operation in BOOST mode
When the photovoltaic mode is set to PV ECO and the DHW-HP mode is set to BOOST, 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 until >8V, set from D20 (PV Min Voltage HP) & D21(PV Min Voltage EL)
 HP starts after 5 minutes delay, set from D22 (PV Min Time). Electric heater does not start due to
PV ECO mode being selected.
 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 00:01:10 00:02:20 00:03:30 00:04:40 00:05:50 00:07:00 00:08:10 00:09:20 00:10:30 00:11:40 00:12:50 00:14:00 00:15:10 00:16:20 00:17:30 00:18:40 00:19:50 00:21:00 00:22:10 00:23:20 00:24:30 00:25:40 00:26:50 00:28:00 00:29:10 00:30:20 00:31:30 00:32:40 00:33:50 00:35:00 00:36:10 00:37:20 00:38:30 00:39:40 00:40:50 00:42:00 00:43:10 00:44:20 00:45:30 00:46:40 00:47:50 00:49:00 00:50:10 00:51:20 00:52:30 00:53:40 00:54:50 00:56:00 00:57:10 00:58:20 00:59:30 01:00:40 01:01:50
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
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