HydroTherm HeatNet KN -6 User Information page 51

WIRING CONNECTIONS
Figure 31 Heating Method 3 4–20 ma/ 0-10 VDC
This Method allows direct modulation of the boiler based on a 4-20 mA control signal. A control
This Method allows direct modulation of the boiler based on a 4-20 mA control signal. A control
capable of transmitting a 4-20mA/0-10 VDC control signal for the purpose of modulating a boiler
capable of transmitting a 4-20mA/0-10 VDC control signal for the purpose of modulating a boiler
and to control a common system temperature must be used with this method.
and to control a common system temperature must be used with this method.
NOTE: If using a 0-10 VDC signal multiply any references to current in the manual by .5. Example:
NOTE: If using a 0-10 VDC signal multiply any references to current in the manual by .5. Example:
5ma * .5 = 2.5 VDC
5ma * .5 = 2.5 VDC
(-)
Channel 1:
(+)
4-20mA/0-10VDC
Closing this contact enables the 4-20 mA/
0-10 VDC input on channel 1
HeatNet Control V3 2.x
24 VDC Return
(+)
Channel 2:
4-20mA/0-10VDC
(-)
24 VDC
S6 along with the
SETUP:ADVANCED:4-20mA INPUT
2
menu configures the channel for
1
operation.
S6 switch 1 DOWN: 4-20mA channel 1
S6 switch 1 UP: 0-10VDC channel 1
S6 switch 2 DOWN: 4-20mA channel 2
S6 switch 2 UP: 0-10VDC channel 2
Page 51