Toyotomi FB-38N(FS) - Manual (Page 34)

15
TEMPERATURE CONTROL (DIFFERENTIAL SWITCH AND DIP SWITCH)
NOE: Make sure that the power supply cord is disconnected when the position of DIP Switch is
selected.
1. The differential switch on the main circuit board controls the heat exchanger water
temperature. The switch can be set at a delta (on/off) of 2°C, 6°C, 9°C or 12°C. A higher
delta reduces burner short cycling.
And you can set the maximum setting temperature at approx. 50°C, 60°C, 70°C or 80°C.
2. The position of DIP Switch is set to 6°C differential from factory. The maximum setting
temperature is set to approx. 80°C at factory. If you like to change the differential, select
the DIP Switch as follows.
HOW TO SELECT DIP SWITCH
NOTE: DIP Switch is located on the main circuit board.
(1) DIP Switch No. 1: Error history
When turning the DIP Switch No.1 to “OFF” position at the operation
switch off, the burner lamp will flash and it indicates when the error
occurred by number of flashing times and the error code is displayed
on the remote control.
Example:
In case that the error occurred two times before;
1 Error History
2
3 Differential
4
5 Max. Temp.
Setting
6
7 High
Altitude
8
(2) DIP Switch No. 2 and No.3: Temperature differential
Differential
Dip No.
2°C
6°C
(Factory setting)
9°C 12°C
2 ON ON OFF OFF
3 OFF ON ON OFF
(3) DIP Switch No. 4 and No.5: Maximum setting temperature
Set Temp
Dip No.
9 (80°C)
(Factory setting)
8
(70°C)
7
(60°C)
5
(50°C)
4 ON ON OFF OFF
5 ON OFF ON OFF
(4) DIP Switch No. 7: High altitude setting
When using at high altitude (800~1300m), turn the DIP Switch No.7 to
“OFF” position.
This water heater will be not able to be used at more than 1300m
higher altitude.