84
21.10.3
R
ATE AT
M
INIMUM
V
OLTS
When programmed for BMS control through the 0 - 10V BMS input or through ModBus/BACnet and the BMS
Type is programmed as POWER, the modulation percentage represented by the Volts at Minimum parameter is set
by the Rate at Minimum Volts parameter. The minimum value is 0% and the maximum is the Rate at Maximum Volts
setting. The default value is model dependant.
21.10.4
R
ATE AT
M
AXIMUM
V
OLTS
When programmed for BMS control through the 0 - 10V BMS input or through ModBus/BACnet and the BMS
Type is programmed as POWER, the modulation percentage represented by the Volts at Maximum parameter is set
by the Rate at Maximum Volts parameter. The minimum value is the Rate at Minimum Volts setting and the
maximum is 100%. The default value is 100%.
21.10.5
S
ET
P
OINT AT
M
INIMUM
V
OLTS
When programmed for BMS control through the 0 - 10V BMS input or through ModBus/BACnet and the BMS Type is
programmed as SETPOINT, the set point represented by the Volts at Minimum parameter is set by the Set Point at
Minimum Volts parameter. The minimum value is 32°F (0°C) and the maximum is the Set Point at Maximum Volts
setting. The default value is 70°F (21°C).
21.10.6
S
ET
P
OINT AT
M
AXIMUM
V
OLTS
When programmed for BMS control through the 0 - 10V BMS input or through ModBus/BACnet and the BMS
Type is programmed as SETPOINT, the set point represented by the Volts at Maximum parameter is set by the Set
Point at Maximum Volts parameter. The minimum value is the Set Point at Minimum Volts setting and the maximum
is 190°F (88°C). The default value is 180°F (82°C).
21.10.7
V
OLTS AT
M
INIMUM
When programmed for BMS control through the 0 -10V BMS input or through ModBus/BACnet, the Volts at Minimum
parameter should be set to the minimum voltage signal sent to the SMART SYSTEM control. The range of this
parameter is 0.0V to the Volts at Maximum value. The default setting is 2.0V.
21.10.8
V
OLTS AT
M
AXIMUM
When programmed for BMS control through the 0 -10V BMS input or through ModBus/BACnet, the Volts at Maximum
parameter should be set to the maximum voltage signal sent to the SMART SYSTEM control. The range of this
parameter is the Volts at Minimum value to 10.0V. The default value is 10.0V.
21.10.9
BMS
T
HERMOSTAT
I
NPUT
When controlling the boiler through the 0 - 10V BMS input, BACnet, or ModBus, the boiler can be enabled one of two
ways. With the BMS Thermostat Input parameter set to ACTIVE, the boiler will be enabled by closing the Heat/ Loop
Demand 1 input. When set to INACTIVE, the boiler will be enabled by the voltage level on the 0 - 10V input (in the
case of 0 - 10V BMS control), or the 0 - 10V input value received through BACnet or ModBus. The default value is
INACTIVE.
The boiler will still fire on a DHW demand if the Herald is directly controlling the DHW via the
sensor point at 29-30
21.10.10
O
N
V
OLTS
When programmed for BMS control through the 0 -10V BMS input or through ModBus/BACnet and the BMS
Thermostat Input is set to INACTIVE, the On Volts parameter determines the 0 - 10V BMS input voltage at which
the boiler is enabled. The minimum value is 0.5V and the maximum is 10.0V. The default value is 2.0V.
Содержание HERALD HCB116CE
Страница 8: ...8 3 1 2 PRINCIPLE PARTS TO BE USED IN CONJUNCTION WITH TABLE 3 1 1...
Страница 11: ...11 5 2 CLEARANCES 5 2 1 ENCLOSURE INSTALLATION CLEARANCES MM 5 2 2 PLANT ROOM INSTALLATION CLEARANCES MM...
Страница 31: ...31 Max distance between brackets...
Страница 32: ...32...
Страница 33: ...33...
Страница 37: ...37...
Страница 53: ...53 15 8 WIRING DIAGRAM 15 8 1 WIRING DIAGRAM...
Страница 54: ...54 15 9 LADDER DIAGRAM 15 9 1 LADDER DIAGRAM...
Страница 92: ...92...
