7
Adjustment of Settings
• If the outdoor temperature is cold and the rooms are cold, increase the
Curve setting by 0.1 per day.
• If the outdoor temperature is near the WWSD temperature and the rooms are cold, increase the
Starting Temp. setting.
• If the boiler is cycling too often, increase the
Differential setting or set control to Ad (Auto Differential).
STEP NINE
BEFORE YOU LEAVE
• Install the wiring cover over the wiring chamber and secure it with the screw provided.
• Place the front cover on the control and snap it into place.
• Place this brochure, and all other brochures relating to the installation, in the protective plastic bag supplied with the control.
• Place the bag in a conspicuous location near the control for future reference.
• It is important to explain the operation of this control within the system to the end user, and to anyone else who may be operating
the system.
Error Messages
Whenever a fault is detected, an error message will be displayed to indicate the location of the problem. For detailed sensor testing
instructions see Data Brochure D 070.
Refer to the troubleshooting section above for operation details
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
OUTDOOR
H. Dem
Boiler
Outdoor Sensor
Open Circuit
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
OUTDOOR
H. Dem
Boiler
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
OUTDOOR
H. Dem
Boiler
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
Outdoor Sensor
Short Circuit
OUTDOOR
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
Internal
Fault
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
Boiler Sensor
Short Circuit
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
Boiler Sensor
Open Circuit
WWSD
Boiler Supply
Target Boiler
Starting Temp.
Minimum Boiler
Differential
Curve
H. Dem
Boiler
flashes
between
flashes
between
flashes
between
flashes
between
flashes
between
Notes
