4
3940011 12.12
Gas
Valve
ON/OFF damper
and actuator with
end-switch
ON/OFF
Contact
ON/OFF
Contact
ON/OFF
Contact
ON/OFF
Contact
ENERVEX
Stack Probe
XTP
Transducer
EBC30 Control
RSV Chimney Fan
ISOKERN fireplace
Multiple ISOKERN Fireplace system
with Single stack and Draft Control
Gas
Valve
ON/OFF damper
and actuator with
end-switch
ISOKERN fireplace
Gas
Valve
ON/OFF damper
and actuator with
end-switch
ISOKERN fireplace
Gas
Valve
ON/OFF damper
and actuator with
end-switch
ISOKERN fireplace
Fig. 1
1.3 System Description
During operation, the EBC 30 maintains a constant negative pressure in the vertical common vent and
fireplace connectors. When the ADM opens to its preset, open position and the pilot is lit, the burner
receives a signal to release the gas valve. The XTP senses the change in pressure and the EBC30 speeds
up the chimney fan until the draft set-point is satisfied. The speed of the fan modulates and varies
depending on the number of fireplaces in operation. The fan is sized based on the amount of draft needed
when all fireplaces are burning (worst-case scenario).
