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11.0
ELECTRICAL SUPPLY
Wiring external to the equipment must be installed in accordance with the I.E.E. Regulations and any local
regulations that apply.
TABLE 11.1
WARNING: THIS APPLIANCE MUST BE EARTHED
A suitably competent person MUST check wiring. Normal supply required is 230 volts AC, single phase,
50 Hz. An isolator with a contact separation of at least 3mm in all poles should be sited close to the
equipment and must only serve that equipment. The double pole switch must be readily accessible under
all conditions.
11.1
CONNECTOR STRIP
1
2
3
4
5
6
7
8
PIN
CONNECTION
NOTES
When an outside temperature sensor is connected, the boiler setpoint will be compensated in relation to the
outside temperature. The addition of this sensor will reduce the flow temperature of the boiler in warmer
Outside
temperatures, increasing energy efficiency.
1 - 2
Temperature
Sensor
A change in control parameters will be required when this sensor is connected and the control system should
be configured to function as required. For further information, please refer to Section 12.10: OUTSIDE
TEMPERATURE COMPENSATION.
When a multiple boiler cascade is used, the master boiler requires a flow sensor to be fitted to the common
pipework in order to control the firing rate whilst acting as a "lag" boiler.
Cascade Flow
3 – 4
Temperature
The sensor should be located on the system flow adjacent to the low velocity header.
Sensor
No change in control parameters will be required when this sensor is connected.
Calorifier
Where a DHW calorifier is used, a hot water sensor or an on/off thermostat can be connected. When a
5-6
Sensor or
sensor is connected, the water temperature will be shown on the display; when a thermostat is used the flow
Thermostat
temperature to the indirect storage vessel will be shown.
Where an interlock with a safety system such as a flue fan or mechanical ventilation system is required, the
safety circuit should be wired to terminals 7 and 8. Where more than one safety system is used, each system
General
7-8
should be wired in series.
Blocking
When the link on 7 and 8 is broken, all heat demands, including frost protection are blocked.
9-10
Empty
N/A
A water pressure sensor is mounted in the boiler with a maximum pressure of 4.0 bar. As an option, the
External Water
sensor can be replaced by a water pressure switch, which can be wired to the terminals. When terminals 11-
11-12
Pressure
12 are not bridged, the boiler will lock-out.
Switch
A change in control parameters is required to activate this function.
Normal Supply
Model
Voltage
CP-M+60
CP-M+80
230V AC
CP-M+100
50 Hz
CP-M+120
1 PH
CP-M+150
CP-M+180
ELECTRICAL SUPPLY REQUIREMENTS
9
10 11 12
13 14 15 16
+
-
FIGURE 11.1 CONNECTOR STRIP
External Fuse
Power Consumption
Rating
355
355
355
6.0 Amps
370
600
600
17 18
19 20 21 22 23 24
A
B
25 26
27
28
29 30 31
L
N
L1
N
L2
41
32 33 34
L
N
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