BOILER BOOK CFC-E
CB FALCON CONTROLLER
49
3. Main Voltage Connection - 115V/single phase/60Hz
4. Local/Remote demand switch
5. Combustion Air Proving Switch - This input is used for proving airflow sufficient for proper
combustion throughout the burner run sequence.
6. High Air Pressure Switch - prevents boiler operation in the event of high stack back pressure
(blocked flue or condensate drain).
7. Gas Pressure Switch - Gas pressure switches for low gas pressure and high gas pressure prevent
the burner from being activated if either is open. Each switch is a physical manual reset device,
requiring physical depression of the reset button if either switch is not closed prior to burner start
or during burner operation.
8. NTC (Negative Temperature Coefficient) Thermistor Inputs (10k
@ 25
o
C)
A.Flow Temperature (Outlet water temperature)
B.Return Temperature (Inlet water temperature)
C.Optional Domestic Water Temperature
D.Optional Outdoor Temperature
E.Optional Stack Temperature
F.Optional Header Temperature
9. System Configuration - CB Falcon configuration is arranged into the following functional groups:
Table 18. CB Falcon burner sequence (Central Heat)
1. Heat request detected (CH demand)
2. CH pump switched on
3. Safe Start Check, dynamic ILK input test (if enabled), blower switched on
4. If ILK input and CAPS switch closed and purge rate fan speed achieved, begin 15
second prepurge
5. When purge complete, blower RPM changed to lightoff speed
6. Trial for Ignition - 4 seconds
7. Ignition and gas valve switched on
8. Ignition turned off at the end of direct ignition period; 5 sec. stabilization time*
9. Release to modulation (Run)
10. At the end of CH heat request, burner is switched off and blower stays on for 15
sec. post purge period. Boiler enters standby mode.
System Identification and
Accesss
CH - Central Heat
Outdoor Reset
DHW - Domestic Hot Water
DHW Storage
DHW Plate
Warm Weather Shutdown
Demand Priority
Modulation Configuration
Pump Configuration
Statistics Configuration
High Limit
Stack Limit
Delta T Limits
T-Rise Limit
Heat Exchanger High Limit
Anti-condensation
Frost Protection
Configuration
Annunciation Configuration
Burner Control Interlocks
Summary of Contents for CFC-E 1000
Page 1: ...CFC E ClearFire Condensing Boiler Boiler Book 02 2018...
Page 52: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 52 Figure 38 Primary Secondary Single Boiler...
Page 53: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 53 Figure 39 Primary Secondary Two Boilers...
Page 54: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 54 Figure 40 Primary Secondary Three Boilers...
Page 55: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 55 Figure 41 Primary Variable Flow Single Boiler...
Page 56: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 56 Figure 42 Primary Variable Flow Two Boilers...
Page 57: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 57 Figure 43 Primary Variable Flow Three Boilers...
Page 60: ...BOILER BOOK CFC E EXAMPLE SYSTEM SCHEMATICS 60...
Page 61: ...BOILER BOOK CFC E e mail info cleaverbrooks com Web Address http www cleaverbrooks com...
