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Installation & Service Manual
The Copper-fin - How it works...
1. Control panel cover
The control panel cover provides access to the thermostat,
ignition module, and transformer.
2. Drain port (not shown)
Location from which the heat exchanger can be drained.
3. Flue outlet
The flue outlet allows the connection of the vent pipe to the unit.
4. Gas connection pipe
The gas pipe connection on this appliance should be connected to
the incoming gas supply for the purpose of delivering gas to the
appliance.
5. Gas valve
The gas valve allows the proper amount of gas to pass into the
burner for combustion.
6. Heat exchanger
The heat exchanger allows system water to flow through specially
designed tubes for maximum heat transfer. The glass lined
headers and copper finned tubing are encased in a jacket that
contains the combustion process.
7. High limit sensor
Device that monitors the outlet water temperature to ensure
safe operation. If the temperature exceeds its setting , it will break
the control circuit, shutting the appliance down.
8. Ignition module (F9 and M9 models only)
The ignition module responds to a call for heat signal to provide
burner operation .
9. Junction box
The junction box contains the connection points for the line
voltage power and the pump.
10. Relief valve
The relief valve is a safety device that ensures the maximum
pressure of the appliance is not exceeded. Water heaters are
supplied with a temperature and pressure relief valve.
11. Terminal strip
The boiler is equipped with a terminal strip on the left side of the
control panel to allow easy connection to contact points on the
unit.
12. Thermostat
The thermostat monitors the water temperature via a temperature
sensor and will initiate a call for heat when the water temperature
drops below the setpoint plus the differential on the thermostat.
13. Temperature gauge (CW models only)
The temperature gauge monitors the inlet temperature of the
water heater as well as the outlet temperature.
14. Transformer
The transformer reduces 120 VAC supply voltage to 24 VAC for the
control circuit.
15. Water inlet
The water inlet is a 2" pipe connection that receives water from the
system and delivers it to the heat exchanger.
16. Water outlet
The water outlet is a 2" pipe connection that supplies water to
the system .
17. Burner (not shown)
The burner is a cylindrical stainless steel tube used to regulate
burner flame.
18. Pilot (not shown)
( F9 and M9 models only)
The pilot is a spark ignition device is used to light a pilot flame
which in turn is used to light the main burners.
( F1 models only)
The pilot uses a standing flame to light the main burner.
19. Sight Glass (not shown)
The sight glass provides a view of the burner surface, burner
flame, and the pilot flame.
20. Temperature and pressure gauge (CB models only)
The temperature and pressure gauge monitors the outlet
temperature of the boiler as well as the system water pressure.
21. Pump (shipped with CW models only)
The pump ensures adequate flow to operate the unit.
22. Pump relay
The pump relay energizes the pump on a call for heat.
23. Temperature sensor
This sensor monitors inlet water temperature. If selected as the
controlling sensor, the appliance will maintain the setpoint at this
sensor.