Beckett CG4 - Manual (Page 17)

17 CG4 Burner Manual
Section: WIRE THE BURNER
Wire the Burner
Install the burner and all wiring in accordance with the
National Electric Code ANSI/NFPA 70 (Canada CSA
C22.1) and all applicable codes and requirements.
Wire the burner in compliance with all instructions and
diagrams provided by the appliance manufacturer.
Verify operation of all controls in accordance with the
appliance manufacturer’s guidelines.
See Figure 13 for a typical wiring
diagram, with the GeniSys 7590.
Maximum fuse size for the 120
Vac 60 Hz electrical power supply
to the burner is 20 Amps.
Keep Service Access
Covers Securely Installed
All covers must be securely in place to prevent
electrical shock, protect against injury from
moving parts and prevent damage from external
elements.
All covers or service access plates must be in place at
all times except during maintenance and service.
This applies to all controls, panels, enclosures, switches,
and guards or any component with a cover as part of its
design.
(3/16” QC)
(1/4” QC)
Igniter
Transformer
Burner
Motor
Gas
Valve
Flame Sensor Com Port (COM 1)
on side of control
Air Pressure
Switch
AP1 AP2
Burner Ground
Limit LWCO
(If Required)
Thermal
Switch
L2 (IGN)
Igniter
L2 (MTR)
Motor
L2
L1
T
TT Terminals on top
of control
Field Wiring
Valve Common
Valve
Sense
24V 24V GROUND
T Beckett
7590
Control
120 Vac
60 Hz
Provided by
Installer
BR BR
G
Y
Y
W
V
W W
W
Y/W W/R
Y BK
W
W
O
BK
BK
BK
Figure 13 – Typical CG4 Wiring (Boiler Applications)
Electrical Shock Hazard
Electrical shock can cause severe
personal injury or death.
Disconnect electrical power before installing or servicing the
burner.
Provide ground wiring to the burner, metal control
enclosures and accessories. (This may also be required to
aid proper control system operation.)
Perform all wiring in compliance with the National Electrical
Code ANSI/NFPA 70 (Canada CSA C22.1)
Explosion, Fire and
Asphyxiation Hazard
Tampering with, or bypassing safety
controls could lead to equipment
malfunction and result in asphyxiation,
explosion or fire.
Safety controls are designed and installed to provide
protection.
Do NOT tamper with or bypass any safety control.
If a safety control is not functioning properly, shut off all
main electrical power and gas supply to the burner and
call a qualified service agency immediately.