30
4-20mA/ 2-10Vdc Firing Rate Operation (Standalone)
Description
Electrical Connection(s)
Programming Instructions
•
Boiler operates with variable
setpoint determined by 4-
20mA incoming signal
•
Modulates on header sensor
•
Heat demand is generated
when Remote Operator is
closed and 4-20mA or 2-
10Vdc signal is present.
1)
Place both toggle switches in
LOCAL
2)
Press
and
3)
Press
[Lead Lag Master Configuration]
4)
Press
[Advanced Settings >]
5)
Press the to arrive at
Central Heat
6)
Select
Modulation rate source = S2 (J8-6) 4-20mA and burner on/off
7)
Place toggle switch to
REMOTE
for remote operation (if required)
System Sensor Enable (Standalone)
Description
Electrical Connection(s)
Programming Instructions
•
Method to enable system
sensor for Standalone
applications
1)
Press
and
2)
Press
[Sensor Configuration]
3)
Select
S5 (J8-11) Sensor
:
10K NTC Single Non-Safety
4)
The control will proceed into a Lockout 2 condition
5)
Press
[Verify]
>
[Begin]
>
[Yes]
6)
Press the reset button on the ignition control within the alotted time
Summary of Contents for DRH300
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Page 38: ...32 13 Place toggle switch setting to REMOTE for remote operation if required...
Page 69: ...63 PART 12 EXPLODED VIEW 19 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20...
Page 70: ...64 21 22 23 24 26 35 34 33 32 31 30 29 28 27 25 36 37 38 39 40 42 43 56...
Page 77: ...71 PART 13 ELECTRICAL DIAGRAMS...
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