Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
4-17
Wiring the Coil Tube Boiler
WARNING:
To avoid electrical shock, make sure that power to the CTB is turned OFF before
connecting any wires. All wiring must be in accordance with the National Electrical Code and
local codes. Properly size all wires and use Greenfield or Thin-wall Conduit for all electrical lines.
Refer to
Figures 4A/4B
at the beginning of this chapter for the Clean Burn recommended typical CTB
installation. Specific wiring schematics are provided in
Appendix B
at the back of this manual.
Wiring your boiler requires the installation of the following lines/circuits:
(1) A dedicated electrical line to the CTB (see IMPORTANT NOTE below)
(2) A pump electrical circuit from the CTB to the oil pump (see IMPORTANT NOTE below)
(3) A separate circuit for the load loop circulator
IMPORTANT NOTE:
Separate, dedicated lines/circuits must be wired
for each boiler
in the dual-stacked
unit.
Wiring to the Coil Tube Boiler
1.
Install a dedicated electrical circuit to the electrical junction box on the CTB. Note that a
dual-stacked boiler will require two circuits, each with a single pole, single throw breaker.
CAUTION:
DO NOT tie into an existing circuit or electrical overload may occur.
2.
Wire the CTB according to the Wiring Schematic in Appendix B.
Use 12-gauge copper wire
for a 15 or 20 amp breaker. A 30 amp breaker requires 10-gauge copper wire.
3.
Check for correct voltage at the CTB and refer to the following chart. Incorrect voltage may
damage the CTB components.
Model
Voltage
Breaker Qty. & Size*
Phase Hertz
CB-200-CTB (single)
110/120
(1) @ 15 amps
Single
60
Dual-Stacked (200-CTB)
110/120
(2) @ 15 amps
Single
60
CB-350-CTB (single)
110/120
(1) @ 20 amps
Single
60
Dual-Stacked (350-CTB)
110/120
(2) @ 20 amps
Single
60
CB-500-CTB (single)
110/120
(1) @ 20 amps
Single
60
Dual-Stacked (500-CTB)
110/120
(2) @ 20 amps
Single
60
*NOTE: Breaker size with optional equipment is 30 amps.
When installing any optional equipment
(e.g. air compressor), you must use a 30 amp breaker. Make sure a qualified electrician properly sizes and
installs this electrical circuit. Note that minimum wire size with a 30 amp breaker is 10-gauge copper wire.
CAUTION:
DO NOT turn on main power until instructed to do so.
Summary of Contents for CB-200-CTB
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