Beckett CG50 - Manual (Page 6)

6
CG15 CG25 CG50
Input Firing Range † :
High Fire (Max.)
High Fire (Min.)
Low Fire (Max.)
Low Fire (Min.)
USA Canada USA Canada USA Canada
1,500 MBH
800 MBH
560 MBH
350 MBH
1,370 MBH
800 MBH
560 MBH
350 MBH
2,700 MBH
1,300 MBH
990 MBH
550 MBH
2,300 MBH
1,300 MBH
990 MBH
550 MBH
5,000 MBH
2,000 MBH
1,400 MBH
730 MBH
4,000 MBH
2,000 MBH
1,400 MBH
730 MBH
Fuel:
Natural Gas
Propane (LP)
0.6 Specifi c Gravity Typical
1.53 Specifi c Gravity Typical 0.6 Specifi c Gravity Typ.
1.53 Specifi c Gravity Typ. 0.6 Specifi c Gravity Typ.
1.53 Specifi c Gravity Typ.
Gas Train:
Standard
Options
UL Listed / CSD-1 confi guration
IRI, FM UL Listed / CSD-1 confi guration
IRI, FM UL Listed / CSD-1 confi guration
IRI, FM
Gas Train Inlet Pressure:
Minimum
Maximum
3.7” WC*
10 PSI 3.5” WC*
10 PSI 3.5” WC*
10 PSI
Manifold to Furnace
Pressure Drop:**
Highest High Fire
Lowest High Fire
3.7” WC
2.7” WC 3.5” WC
2.5” WC 3.5” WC
2.5” WC
Firing Modes Available: Low Fire Start
High/Low
Modulation -
High/Low
Modulation -
High/Low
Modulation
Standard Flame
Safeguard:
Low Fire Start
High / Low
Modulation
RM7897A
RM7897C
RM7897C -
RM7897C
RM7840L -
RM7897C
RM7840L
Flame Detector:
Standard
UV UV UV
Airfl ow Proving Switch: Standard Standard Standard
Gas Pressure Switches: Standard High and Low Standard High and Low Standard High and Low
Ignition: Direct Ignition of Main Flame Direct Ignition of Main Flame Direct Ignition of Main Flame
Motor:
HP
RPM
Standard Voltage
Motor FLA
Optional Voltages
1/2HP
3450 RPM
120 volt, 1 ph, 60 Hz
6.4 Amps @120 volt AC
208/230v, 1 ph, 60 Hz
208/230v, 3 ph, 60 Hz
460v, 3 ph, 60 Hz
575v, 3 ph, 60 Hz 3/4 HP
3450 RPM
120 volt, 1 ph, 60 Hz
10.4 Amps @120 volt AC
208/230v, 1 ph, 60 Hz
208/230v, 3 ph, 60 Hz
460v, 3 ph, 60 Hz
575v, 3 ph, 60 Hz 2 HP
3450 RPM
208/230v, 1 ph, 60 Hz
13.4 Amps @230 volt AC
208/230v, 3 ph, 60 Hz
460v, 3 ph, 60 Hz
575v, 3 ph, 60 Hz
Weight: 125 lbs. 145 lbs. 165 lbs.
Dimensions: Refer to Figures 4 & 5.
*See manufacturer’s nameplate settings for specifi c minimum gas pressure requirements.
** See Figures 14A, 14B, & 14C.
† Canada High Fire rate is reduced to accomodate 25% reserve air.
Table 1 – Burner Specifi cations
Figure 1 - Burner Label Location
Section: Pre-installation Checklist
General Model Information
Serial Number,
Including Date Code
Rating Information
Approval Agency Symbols
Fuel
R.W. Beckett Construction
& Setting Data
R.W. Beckett Specifi cation
Number and Revision
Boiler Manufacturer and
Model, When Applicable
Additional Codes