External heat source
status
154
This code is use to define the external heat source status when EHS is activated
and OAT < temperature value set in Code 148: 0. Always On
1. On/Off depending by actual Room Temperature vs room temperature set-point
(same hysteresis of Thermostat functio
0
2
1
Main water pump logic vs
ehs status
155
This code is use to define the water pump logic when EHS is activated and OAT
< (temperature value set in Code 148):
0. Always Off
1. On/Off depending by EHS On/Off status
2. Always On
0
2
1
Trace heater / additional
wp logic
156
This code is use to select the output connected at PIN 11 on terminal strip. In
case an additional water pump option is active, this code is use to select its
operating logic vs the SHW request (if OAT > (temperature value set in Code
148)).
0. Trace he
0
2
1
Additional water pump
logic
157
This code is use to define the additional water pump logic, if it has been installed,
when OAT < temperature value set in Code 148:
0. Always Off
1. On/Off depending by EHS On/Off status
2. Always On”
0
2
2
Delta air set-point
158
This code is use to define the hysteresis versus the temperature room Set-Point
to Off the Unit when the System Type is Control panel installed and used as
Thermostat (100 Control panel code = 4).
0.2°C
1°C
0.3 °C
33
