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Setting the Heat Load for The
Outdoor Reset Control Mode
•
Move No. 2 PCB DIP switch in the ON direction.
ON
1 2 3 4 5 6 7 8
•
Press the MODE and
buttons for 5 seconds. The outdoor
reset lamp will turn on, and C7 and ON or OFF will be displayed
repeatedly on the screen.
•
At this time, you can set ON or OFF using the
C7 : ON = The boiler operates in outdoor reset mode using the
ambient temperature sensor.
C7 : OFF = The boiler operates according to the heating water
temperature.
•
When you set ON for C7 and press the MODE button, C8 and "1"
will be displayed repeatedly.
•
You can set a value from 0 to 6 using the
(The factory default value is 1.)
The meaning of each number is as follows.
Outdoor reset heat load types
0: Finned tube heat load types
1: Fan coil
2: Cast iron baseboard
3: Low mass radiant
4: High mass radiant
5: Radiator
6: Custom
The set temperature for each heat load type is as follows.
Heat load
Finned
or
button.
tube heat
load types
Fan coil
Cast iron
baseboard
Low mass
radiant
High mass
radiant
Radiator
Custom
Minimum
Maximum
Out temperature
set-point
set-point
118°F(48°C)
180°F(82°C)
120°F(60°C)
180°F(82°C)
Minimum out
temperature: 14°F(-10°C)
100°F(38°C)
170°F(77°C)
Maximum out
82°F(28°C)
140°F(60°C)
temperature: 68°F(20°C)
82°F(28°C)
122°F(50°C)
118°F(48°C)
170°F(77°C)
User define
and
buttons.
Min-maximum
47
Operating the Boiler
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