Control behavior (P01) - Data Sheet - RDH100RF/SET

The factory setting for control is “PID slow”, ideal for most heating systems. Optimum control can be selected if control does not provide the desired result:

2-position, 1 K

2-position controller with 1 [K] switching hysteresis

• For systems with small capacity that appear slow
• For applications requiring extended runtimes or where frequent switching causes problems
• For difficult control loops where hunting may result

Typical applications:

• Dry floor heating systems
• Heat pumps
• Electric heating with contactors

2-position, 0.5 K

• 2-position controller with 0.5 [K] switching hysteresis.
• For general control situations. Provides better comfort than 1 [K] switching hysteresis.
• Can also be used for difficult control situations.

PID slow

PID control behavior for slow heating systems that require longer minimum On times and a limited number of switching cycles per hour.

Typical applications:

• Wet floor heating systems, oil fired boilers
• Can also be used for all other types of heating applications. (Alternative setting)

PID fast

PID control behavior for fast heating systems that tolerate a high number of switching cycles.

Typical applications:

• Electric heaters with current valve
• Gas boilers
• Fast thermal actuators

WARNING

Do not use PID fast for oil boilers or
electric mechanical actuators!