andrews CWH 30/201 Operating Instructions Manual page 44

4.5 COMPLETE PARAMETER LIST TABLE (CONTINUED)
PARAMETER DESCRIPTION
Diagnostics producer
8304 Boiler pump Q1
8308 Boiler pump speed
8310 Boiler temp
8311 Boiler set point
8312 Boiler switch point
8314 Boiler return temp
8315 Boiler return sensor setpoint
8316 Flue gas temp
8318 Flue gas temp max
8323 Fan speed
8324 Set point fan
8325 Current fan control
8326 Burner modulation
8329 Ionisation current
8330 Burner hours run stage 1
8331 Number of burner starts stage 1
8390 Current phase number
Diagnostics consumers
8830 DHW temperature (B3)
8831 DHW temperature setpoint
8835 DHW circulating temperature
8836 DHW charging temperature
8950 Common fl ow temperature
8951 Common fl ow temperature setpoint
9009 Water pressure H3
9016 Special temp 1
9017 Special temp 2
9031 State relay output QX1
9032 State relay output QX2
9033 State relay output QX3
9034 State relay output QX4
9050 State relay output QX21 module 1
9051 State relay output QX22 module 1
9052 State relay output QX23 module 1
Engineer
FACTORY NOTES
DEFAULT
--- Status of Primary system pump
--- Internal pump speed
--- Current primary fl ow temperature
--- System calculated fl ow temperature set point
--- Indicates next fl ow temperature demand target for current
heater activity
--- Current primary return temperature
--- Indicates next return temperature demand target for
current heater activity
--- Current fl ue gas temperature
--- COUNTER CAN BE RESET Maximum fl ue gas
temperature reached.
--- Current fan speed in rpm
--- System calculated fan speed set point
--- Current fan control as a percentage
--- Current burner modulation rate in percent
--- Current Ionisation fl ame signal (> 9.0A is a strong fl ame
signal < 7.0A is a weak fl ame signal, with the burner at
100% modulation)
--- COUNTER CAN BE RESET Total number of hours the
heater has been operating
--- Total number of burner starts performed by the heater
--- Current phase stage of burner operation
--- Actual DHW tank temperature
--- Current DHW temperature set point
--- Actual DHW circulating return temperature (if fi tted)
--- Current DHW charging temperature at heat engine outlet.
--- Same as parameter 8310
--- Same as parameter 8311
--- Current primary system pressure. Internal water pressure
of the heaters internal primary circuit. NB This pressure
must not be allowed to drop below 0.1 bar or the heater
will stop.
--- If using the BUFFER SS300-10 expansion tank system
the temperature of the fi rst BUFFER SS300-10 tank will
be displayed here.
--- If using the BUFFER SS300-10 expansion tank system
the temperature of the second BUFFER SS300-10 tank
will be displayed here.
--- Current status of DHW circulation pump Q4
--- Current status of DHW primary pump Q1
--- Current status of fan power
--- Current status of DHW pump Q3
--- Current status of QX21 output
--- Current status of QX22 output
--- Current status of QX23 output
44 MAXXfl o EVO