Bosch SSB1000 TL - Page 27

SSB 6720892984 (2019/02) US
Main control | 27
Relevant variables
Specic Parameters Level
(Default) Value Range
°C °F °C °F
CH_Mode 2: Installer 0 0, 1, 2, 3, 4
CH_Setpoint
Sets the required supply temperature.
[°C/°F] 1: User 60 140 20..90 68..194
Post_Pump_Period [sec] 1: User 120 sec. 10..900 sec.
Max_Flue_Gas_Temp
Sets the max ue gas temperature.
[°C/°F] 3: Factory 95 203 10..120 50..248
CH_Hysterese_Up [°C/°F] 3: Factory 5 9 0..20 0..36
CH_Hysterese_Down [°C/°F] 3: Factory 5 9 0..20 0..36
Anti_Cycle_Period [sec] 2: Installer 180 sec. 10..900 sec.
Anti_Cycle_T_Diff
Aborts anti-cycle time when setpoint – actual supply temp > Anti_Cycle_T_
Diff.
[°C/°F] 2: Installer 16 29 0..20 0..36
Hx_Diff_Delta_T_Min
Minimum differential over heat exchanger
(T_Supply - T_Return) at which burner load is decreased.
[°C/°F] 3: Factory 40 72 10..80 18..144
Hx_Diff_Max_Wait_Time
Wait time after upper limit primary heat exchanger differential has been
exceeded.
[sec] 3: Factory 0 sec. 1..255
P_CH_Max
Maximum burner power for CH operation
[%] 2: Installer 100 1..100
P_CH_Min
Minimum burner power for CH operation
[-] 2: Installer 1 1..50
PID_P 3: Factory 100 0..1275
PID_I 3: Factory 500 0..1275
PID_D 3: Factory 0 0..1275
Status variables Level
Value/Range
°C °F
CH control state
Central heating controller state
0 ¨ Idle
1 ¨ Request
2 ¨ Demand
3 ¨ Post circulation
4 ¨ Off
RT_Input
Room thermostat open or closed
0 ¨ Open
1 ¨ Closed