andrews CWH 30/201, Operating Instructions Manual

Page: 40 / 48

Engineer 40 MAXXfl o EVO
4.5 COMPLETE PARAMETER LIST TABLE (CONTINUED)
PARAMETER DESCRIPTION FACTORY
DEFAULT
NOTES
DHW storage tank (continued)
5101 Pump speed minimum
DHW EVO 30 = 44%
EVO 60 = 59%
EVO 90 = 58%
EVO 120 = 67%
Used to increase the minimum pump speed whilst in DHW
heating.
Increasing minimum pump speed decreases the DeltaT of the
water being heated
General functions (used for controlling the optional BUFFER SS300-10
5570 Temp diff on dT contr 1 2.0
OI
C If the temperature diff erence between the BUFFER SS300-10
tank and the MAXXfl o EVO tank is greater than this value,
K21 transfer pump output will be turned on
5571 Temp diff off dT contr 1 1.0
o
C If the temperature diff erence between the BUFFER SS300-10
tank and the MAXXfl o EVO tank is less than this value, K21
transfer pump output will be turned off
5572 On temp min dT contr 1 0 o C Not used
5573 Sensor 1 dT contr 1 DHW sensor B3 Sensor used for delta T comparison for K21 transfer pump
activation
5574 Sensor 2 dT contr 1 Special temper-
ature sensor 1
Sensor used for delta T comparison for K21 transfer pump
activation
5575 On time min dT contr 1 30s Represents the minimum time that K21 will be activated even
if parameter 5571 conditions are met
5577 Pump/valve kick K21 On Pump output on
5580 Temp diff on dT contr 2 2.0 OI C If the temperature diff erence between the BUFFER SS300-10
tank and the MAXXfl o EVO tank is greater than this value,
K22 transfer pump output will be turned on
5581 Temp diff off dT contr 2 1.0
o
C If the temperature diff erence between the BUFFER SS300-10
tank and the MAXXfl o EVO tank is less than this value, K22
transfer pump output will be turned off
5582 On temp min dT contr 2 0
o
C Not used
5583 Sensor 1 dT contr 2 DHW sensor B3 Sensor used for delta T comparison for K22 transfer pump
activation
5584 Sensor 2 dT contr 2 Special temper-
ature sensor 1
Sensor used for delta T comparison for K22 transfer pump
activation
5585 On time min dT contr 2 30s Represents the minimum time that K22 will be activated even
if parameter 5581 conditions are met
5587 Pump/valve kick K22 On Pump output on
Confi guration
6020 Function extension
module 1 None Defi nes purpose of AGU2.550 clip-in extension module.
When using an extension module with the MAXXfl o EVO this
setting should be changed to “Multifunctional”
6024 Function input of EX21
module 1 None Defi nes purpose of AGU2.600 clip-in extension module.
6030 Relay output QX21
module 1 None Defi nes the purpose of the output QX21 on a AGU2.550 clip-
in extension module
6031 Relay output QX22
module 1 None Defi nes the purpose of the output QX22 on a AGU2.550 clip-
in extension module
6032 Relay output QX23
module 1 None Defi nes the purpose of the output QX23 on a AGU2.550 clip-
in extension module
6040 Sensor input BX21
module 1 None Defi nes the purpose of the sensor input BX21 on a AGU2.550
clip-in extension module
6041 Sensor input BX22
module 1 None Defi nes the purpose of the sensor input BX21 on a AGU2.550
clip-in extension module
6031 Relay output QX22
module 1 None Defi nes the purpose of the output QX22 on a AGU2.550 clip-
in extension module