Mode Of Operation - Toshiba HWS-G1901CNMR-E Service Manual

Domestic Hot Water Heat Pump
Class Code Menu Item
I10 MWh th
I
I11 EL MWh
R1 Extra
R2 Defrost
R
R3 Fan
R4 HP
R5 EL
Er1 BT1 Error
Er2 BT2 Error
Er3 BT3 Error
Er4 BT4 Error
Er5 BT5 Error
Er
Er6 Err HP
Er7 Err Evap
Er8 Err C Evap
Er9 Err H Evap
Er10 Filter
*Optional

10.1.2 Mode of operation

Different strategies to heat the water can be selected from the main control panel pressing 5 or
6 (Scroll down or scroll up) from the home view.
The possible modes of operation to choose from are found in the following table:
Description
The total calculated hot water production is displayed in
MWh since last Reset All
The electricity consumption of the electric resistance in
MWh since last Reset All
The operation of the extra relay, for example for the operation of a circulation
pump
The operation of the relay that controls the solenoid valve for the defrosting
function is shown
The fan speed is shown in %
The operation of the compressor is shown
The electric heater operation is shown
The temperature sensor BT1 is out of range
The temperature sensor BT2 is out of range
The temperature sensor BT3 is out of range. If BT3 Error occurs, the unit does not heat
the water in any way
The temperature sensor BT4 is out of range. The error Er4 is ignored and the unit runs
normally
The temperature sensor BT5 is out of range. The error Er5 is ignored and the unit runs
normally
The pressure switch opens, when the pressure in the heating circuit is above the limit of
pressure specified on the high pressure switch
The temperature sensor BT2 is above BT1 - 2°C for more than one hour
The temperature BT2 is below - 25°C
The temperature BT2 is above D11 (Evaporator T max)
Replace filter. The alarm is displayed on the main screen, but the operation of the unit is
not affected.
Figure 18 – Modes of operation
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Service Manual