Installer - Toshiba HWS-G1901CNMR-E Service Manual

Domestic Hot Water Heat Pump

10.1.6 Installer

The installer menu should be accessed only by qualified personnel. Some of the set points that
can be regulated from this menu can have large effects on the unit performance depending on
the type of commissioning and installation. There should be a proper match between installer set
points and type of installation in order to optimize the performance and lifetime of the unit.
In order to access the Installer Menu, a 4-digits password needs to be entered. The password is:
2016. All temperatures are expressed in °C.
Set point
Code Description
name
All the set points are reset to original factory settings. Also the
D0 Reset all
Information menu and the installer set points are modified.
D1 Errors The alarms of the unit can be checked here.
D2.0 Modbus address. The Modbus address can be selected between 1
Address and 247.
Modbus baud rate. The ModBus baud rate can be selected between
D2.1 Baud
19200 and 9600.
Rate
D2
Modbus parity. The ModBus parity can be chosen between Even or Odd
D2.2 Parity
or deactivated.
D2.3 Modbus modify. If this function is activated, it is possible to modify the set
Write
points kept for development with a data logger.
enable
The maximum fan speed (%) can be regulated. This is the highest limit at
Fan max
which the fan can run both when the ventilation function is active and when
D3
speed
the heat pump is in standard operation.
Fan medium The medium fan speed (%) can be adjusted.
D4
speed
Fan min The minimum fan speed (%) can be adjusted.
D5
speed
The automatic speed of the fan (%) when the heat pump is running in
AUTO and ECO mode can be regulated. This is a nominal value while the
AUTO
D6
speed
fan speed may automatically vary its speed at a higher level, depending
on the operating conditions.
The minimum air temperature allowed during the operation of the heat
pump can be regulated here. If BT1 is below Air T min the electric heater
D7 Air Temp min
starts and it works alone until the set point is reached. (Even if the air
temperature increases in the meanwhile).
The maximum air temperature allowed during the operation of the heat
Air Temp
D8
max
pump can be regulated here.
The maximum allowed temperature in the tank.
Water Temp
D9
max
The temperature of BT2 at which the defrosting function stops. The
Defrosting
D10
defrosting function is automatic and it occurs not more often than once
Temp Stop
every hour.
The maximum evaporator temperature allowed during the operation of the
Evaporator
heat pump can be regulated here. If BT2 has a higher temperature than
D11
Temp max
the set point, then use electric heater. This function is active 10 minutes
after the compressor start.
55
Service Manual
Factory
Range
setting
OFF/ON OFF
- -
1-247 30
9600/
19200
19200
Even/
Even
Odd/
None
OFF/ON ON
0-100 70
0-100 50
0-100 40
0-100 57
(-7) -
-7
(+10)
30-40 40
55-65 65
0-10 4
10-40 30