Operating instructions

20
Red stage light is not lit, but the System Combustion Air Damper or Pump is on
The BCP-6/12 is not calling for the unit to run. Remove any wires attached to the BCP-6/12 SYSTEM output terminals. Check the
N.O. terminals are open. Then check the N.C. terminals are closed. If both conditions are true, the BCP-6/12 output is working
correctly. Check the unit for any other operating controls which may be causing it to energize.
SET POINT CAN NOT BE ADJUSTED
Set Point reads ON
There is a sensor fault. The sensor is registering either it is open or shorted. In the outdoor reset mode, the outdoor sensor
could be the one with the fault.
Set Point reads OFF
There are three reasons the set point will read off:
1. The HEAT DEMAND contact is open
2. The outdoor temperature sensor is above the Outdoor Starter
3. If using the external set point, the 4-20mA input is not connected, or does not provide a signal between 4 and 20mA
Set Point reads 200
°°
°°
°F
There is a call for DHW priority. Check terminals 9 and 10 for a short. If the two terminals are not shorted together, the unit may
be damaged.
.
Notes:
1. The most commonly used sensors are the Temperature Sensor & Control Well (P/N 389-900-175) and the Mounting Clip &
Sensor (P/N 389-900-177). These are typically used for residential and semi-commercial applications where the sensor leads
are exposed.
2. The Temperature Sensor with Housing & Control Well (P/N 389-900-176) and Outdoor Weather Head Enclosure with Sensor
(P/N 511-624-640) are more typically used on commercial applications where the sensor leads need to be run inside of
conduit.
Notes:
1. The most commonly used sensor is the Mounting Clip & Sensor (P/N 389-900-177). Typical use is for residential and semi-
commercial applications where the sensor leads are exposed.
2. The Outdoor Weather Head Enclosure with Sensor (P/N 511-624-640) is typically used on commercial applications where
the sensor leads need to be run inside of conduit.
BCP-6 and BCP-12 Sensor Selection for Water Systems
For Each Operating Mode Choose 1 Indoor Sensor Choose 1 Outdoor Sensor
Outdoor Reset
Set Point
with Outdoor Starter
Set Point
without
Outdoor Starter
Temperature Sensor &
Control Well
Use Part #389-900-175
-OR-
Temperature Sensor with
Housing and Control Well
Use Part #389-900-176
None used for Set Point without
Outdoor Starter
Mounting Clip and Sensor
Use Part #389-900-177
-OR-
Outdoor Weather Head
Enclosure and Sensor
Use Part #511-624-640
BCP-6 and BCP-12 Sensor Selection for Steam Systems
For Each Operating Mode Choose 1 Indoor Sensor Choose 1 Outdoor Sensor
Set Point
with Outdoor Starter
Set Point
without
Outdoor Starter
Pressure Sensor Assembly
with Pigtail
Use Part #511-624-643
None used for Set Point without
Outdoor Starter
Mounting Clip and Sensor
Use Part #389-900-177
-OR-
Outdoor Weather Head
Enclosure and Sensor
Use Part #511-624-640