Honeywell S7999D1048 Manual page 65

Application:
Description:
G
UDC
L1 L1
CONTROLLER
L2
L2
25 R
26
+
SHIELD
-
27 16
RTD SENSOR
100 OHM
C
MODBUS COMMUNICATION
HONEYWELL S7810M
Digital Inputs:
Analog Inputs:
Setpoints:
Optimal supply water temperature (0-300°F)
Application File:
Range
Controller Model
Algorithm:
CTRALG
TIMER
Output:
OUTALG
Input 1:
IN1TYP
IN1 HI
APPLICATION NOTE
Thermal Shock
Modulate a hydronic mixing valve (or pump) to maintain an optimal boiler supply water
temperature.
+ 19
FIRING RATE
MOTOR
-
21
INTERFACE
7
8
L1
D+ D-
17 18 9
ALARM (LOW
INLET TEMP)
A B
None
Water supply sensor
temperature (0-300°F)
(4-20mA)
shock01.nge
0–300°F
DC2500-CE-200R-200-00000-00-0
PIDA
DIS
CURRENT
100L
300
S7999D1048 COMBUSTION SYSTEM OPERATOR INTERFACE DISPLAY
M24240
Digital Outputs:
Analog Outputs:
65
Optimal Temperature Alarm
(ON when below alarm
setpoint, OFF when at or above
alarm setpoint)
Proportional modulation (4-
20mA) to control actuator for
mixing valve. Modulation based
on optimal temperature
setpoint.
65-0321—01