CLEAN BURN CB-200-CTB, Руководство оператора

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Coil Tube Boiler Operator's Manual: Models CB-200-CTB, CB-350-CTB, and CB-500-CTB
3-8
Assembly for ALL Boilers
Refer to Figures 3A, 3C, and 3D. Connecting the boiler involves three activities:
• Supply Side Connections
• Return Side Connections
• Wiring
NOTE: If you are installing dual-stacked boilers, each boiler must be installed in the same manner
according to the following guidelines for connections/wiring. Each boiler must be protected with its
own low water cut-off and MUST be piped individually (i.e. piping dual-stacked units together with
a single supply or return line is strictly PROHIBITED).
Supply Side Connections
• Install the pre-assembled low water cut-off onto the supply piping flange.
• Place a flange gasket between the two flanges, and tighten the bolts to secure this part.
• Install the temperature/pressure gauge into the first tee (the 1/2" tapping). Be sure to use
pipe dope on the threads of the gauge. Tighten the gauge into the tee.
• Install the probe of the low water cut-off into the upper tee, using pipe dope on the threads of
the probe. Tighten into the tee.
• Install the low water cut-off control onto the probe and secure.
• Connect the wiring harness from the CTB control box to the low water cut-off. Refer to the
CTB wiring diagram in Appendix B at the back of this manual.
Return Side Connections
• Mount the boiler circulator onto the flanged check valve assembly mounted on the boiler.
Place a gasket between the two flanges and tighten.
• Install the return piping assembly onto the other side of the circulator flange. Place a gasket
between the two flanges and tighten.
Wiring
• For each boiler, connect the wire from the CTB control box to the circulator. Refer to the
CTB wiring diagram in Appendix B as needed. If necessary, excess length may be trimmed
from the circulator wires.
Connecting the CTB