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8 Control and electrical connections
8
Control and electrical connections
8.1
General
36
The boiler is equipped with electronic control and safety equipment
with ionization flame protection.
The advanced boiler control Comfort Master, is a microprocessor that
protects and controls the boiler. The boiler is fully prewired; all
external connections are made on the terminal strips (24V and 120V).
Connect the boiler to the mains supply in accordance with the local
electricity supplier's instructions and NEC/NFPA 70 & CEC CSA 22.1
Electrical codes.
Each boiler must be fused protected for a single phase power source
120/160 @ 15A. The circuit must be earth grounded (bonded) and
provided with a service switch that is within the general vicinity of the
boiler and within hand reach (clearly marked and identified).
Electrical shock hazard, can cause personal injury or loss of life,
including property damage.
All electrical wiring to the boiler and controls must be protected from
ingest of water and be properly grounded and bonded according to
CEC Part I CSA 22.1 & NEC NFPA 70.
8.1.1
Boiler control
The heat output of the C230 ECO-A can be controlled as follows:
Modulating, where the output modulates between the minimum
and maximum values on the basis of the flow temperature defined
by the modulating controller.
On/off control, where the heat output modulates between the
minimum and maximum values on the basis of the flow
temperature set in the unit. This can be combined with an outside
sensor so that the internal heating curve is used.
Analogue control (0-10 V), where the heat output or temperature
is controlled by a 0-10 V signal, see Section 8.5. Only possible
with optional 0 - 10 V control PCB (IF-01).
Analogue control (0-20 mA), where the heat output or
temperature is controlled by a 0-20 mA signal, see Section 8.6.
Only possible with optional 0 - 20 mA control PCB.
C230 ECO-A
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