Steffes Comfort Control Relay Panel (CCRP) User Manual
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Comfort Control Relay Panel (CCRP)
NOTES
(Refer to the Circuit Board Configuration Diagram on page 3 of this manual.)
NOTE 1: Line Voltage Connections
This device can be powered with 120V or 208V/240V. In most applications, optimum performance is
achieved when connected to 208V/240V. The CCRP is equipped with a factory installed wiring and is config-
ured for 208V/240V. If the CCRP is to be connected to 120V, the transformer tapping MUST be changed.
To change the transformer tapping to 120V, move the wire jumper to positions P2 and N in the line voltage
connections terminal strip. (See Circuit Board Configuration Diagram for reference to proper placement of the
jumper and line voltage field wiring connections.)
NOTE 2: Green LED Lights
These lights indicate various circuit board functions:
LED 2 = When illuminated, indicates the relay panel is energized.
LED 3 = When illuminated, indicates the microprocessor has energized relays 1, 2, and 3.
LED 4 = When illuminated, indicates the microprocessor has energized relays 4, 5, and 6.
LED 5 = When illuminated, indicates the microprocessor has energized relays 7, 8, and 9.
LED 6 = When the CCRP is energized, this light should illuminate, either in a flashing or a continuous
illumination mode, indicating the microprocessor is processing information.
No Illumination: Microprocessor is unable to process information. Check system wiring.
Continuous Illumination: Will occur any time a peak control signal is being received.
Slow Flash (4 second duration): Will occur during off-peak times. The illumination time of
the light is in direct relation to the temperature information the CCRP is receiving from the
outdoor temperature sensor. A long illumination time indicates warmer temperatures and a
short illumination time indicates colder temperatures.
NOTE 3: Outdoor Sensor
If using the CCRP with microprocessor based ETS room heating system(s) and utilizing the automatic charge
control option, an outdoor temperature sensor is required. This sensor attaches to the two “OS” positions of the
terminal strip in the CCRP. The outdoor sensor sends outside temperature information to the CCRP and the
power line carrier transmitter within sends this information to the heater(s), eliminating the need for direct wire
connections between the heater(s) and the CCRP.
•
If utilizing the automatic charge control option with fluid regulated ETS room heating
systems (i.e., Steffes "S" series heaters and most European models), the CCRP must
be special ordered from the factory in this configuration.
•
If NOT utilizing the automatic charge control feature of the CCRP, a 4300 ohm resistor
must be placed between the two OS terminals to prevent the 2100, 3100, 4100, or 5100
Series heating system(s) from displaying Error 6 (Er 06).
Outdoor Temperature Versus LED 6 Illumination Time
During Off-Peak Times
Outdoor Temperature (Degrees Fahrenheit)
Percentage of Indicator
"On" Time