43
8 - ELECTRICAL CONNECTIONS
FIGURE 8-8 Analog Output 0-10V
Jumper 2
Input
Signal (V)
Temperature
(°F/°C)
Description
0 - 1.5
32-59
(0-15)
Boiler off
1.5 - 1.8
59.0-64.4
(15.0-18.0)
Hysteresis
1.8 - 10.0
64.4-176.0
(18.0-80.0)
Temperature
required
4.
Analog Temperature-Based Control -
0 - 10 V
signal controls boiler supply temperature between 32ºF
(0ºC )and 176ºF (80ºC). Control modulates on basis
of supply temperature, heat output varies between
minimum and maximum values based on supply
temperature set point calculated by the controller.
Jumper 2 on the interface is used to select either
temperature control ( ) or heat output control (%).
Jumper 2
Input
Signal (V)
Temperature
(°F/°C)
Description
%
0.0 - 2.0
32-68
(0-20)
Boiler off
2.0 - 2.2
1
68-72
(20-22)
Hysteresis
2.0 - 10.0
1
72-176
(20-80)
Temperature
output required
(1)
Dependent on minimum modulation depth (set speeds, standard 20%)
5.
Analog Heat Output - Based Control -
0-10V signal
controls boiler output between 0% and 100%. Minimum
and maximum values are limited. Minimum output
is linked to boiler's modulation depth. Output varies
between minimum and maximum value on basis of value
determined by controller.
Jumper 1
Input
Signal (V)
Temperature
(°F/°C)
Description
0
32-59
(0-15)
Boiler off
0.5
59-72
(15-20)
Hysteresis
2.0 - 10.0
1
72-176
(20-80)
Temperature
required
(1)
Dependent on minimum modulation depth (set speeds, standard 20%)
FIGURE 8-7 Analog Temperature Based Control
6.
Analog Output - 0-10V -
Temperature or heat
output can be chosen for this feedback message.
The two controls are described briefly below.
Jumper 1
on the interface is used to select either
temperature control ( ) or heat output control (%).
P/N 240011656, Rev. E [07/30/2018]
