Making The Electrical Connections | Baxi Potterton 30 HE instruction

10.0 Installation

Control Box Cover

Fig. 41

Fig. 40

	Fig. 42	Facia Panel
	Cable Clamp	Facia Panel
	Cable Clamp

10.8Making The Electrical Connections

To connect the mains input cable proceed as follows:-

1.	Slacken the facia securing screws and lift the
outercase panel so that its locating tabs are clear of the
facia. Remove the panel.
2.	Completely undo the screws securing the facia panel
and hinge it down (Fig. 40).
3.	Remove the control box cover securing screws.
Disengage the barbs on the control box from the
cover. Remove the cover (Fig. 41).
4.	Slacken the cable clamp on the LH side of the boiler
chassis (Fig. 42). Insert the cable through the clamp and
route it to the terminal block.
5.	Slacken the screws in the terminal block, connect
the input cable, and tighten the screws.
6.	If an external control is to be connected it can be
done at this point. Run the input cable from the

Fuse

Fused supply 3A	Always fit fast
230V ~ 50Hz	blow 2A fuse

Live (brown) br

Neutral (blue) b

Earth (green/yellow) g/y

230V 1 bk

2 bk

Terminal Block

Fig. 43

Frost Thermostat
	L	br
L	N	b
N
External Clock		g/y
	1	bk
	230 V
N	2	bk
	2	bk
	SL
Room Thermostat

IMPORTANT: If an integral timer is fitted to the boiler an external frost thermostat wired as shown will not operate correctly. Only external timers may be used in such installations, as in the diagram.

external control through the second cable clamp on

the boiler chassis. Refer to the instructions supplied

with the control.

7. To connect external control(s) remove the link

between terminals 1 & 2. The 230V supply at terminal

1 must be connected to the external control. The

switched output from the external control must be

connected to terminal 2 (Fig. 43).

NOTE: If the room thermostat being used incorporates an anticipator it MUST be wired as shown in Fig. 43

IMPORTANT: The external control MUST be suitable for 230V switching.

Functional Flow Diagram

8. Ensure that both mains input and, where fitted,

external control input cables have sufficient slack to

allow the control box to drop down. Tighten the cable

External		L
Controls		230 V

Selector /

Reset Switch

	br
	br
	b
	b
	r
	r
	g
	g
PCB	bk
	bk
	bk
	b

Pump

b N

b Pressure Switch br

Fan

Flue Thermostat

Safety Overheat Thermostat

Central Heating

NTC Sensor

DHW

NTC Sensor

Gas Valve Modulator

Spark Electrode

clamp(s) on the boiler chassis.
9. If the optional integral timer is to be used it should
be fitted at this point. Refer to the instructions supplied
with the timer. NOTE: An external frost thermostat
cannot be used with the integral timer.
10.9	Preliminary Electrical Checks

1. Prior to commissioning the boiler preliminary

Key to Wiring b - blue

br - brown bk - black r - red

g - green

Fig. 44

Gas Valve

Condensate Trap

Flame Sensing Electrode

Hydraulic Differential Pressure Switch

DHW Flow Priority Microswitch

electrical system checks should be carried out.

2. These should be performed using a suitable meter,

and include checks for Ground Continuity,

Resistance to Ground, Short Circuit and Polarity.

30 HE specifications

The Baxi Potterton 30 HE is a popular choice among homeowners seeking an efficient and reliable boiler solution. Recognized for its compact design and advanced technologies, this boiler is ideal for various residential heating needs.

One of the standout features of the Baxi Potterton 30 HE is its high efficiency rating, which ensures lower energy consumption and reduced utility bills. With an impressive efficiency of up to 90%, this boiler operates at a much higher capacity compared to older models, making it both environmentally friendly and cost-effective. The 30 HE is particularly well-suited for medium to larger homes with a higher demand for hot water.

The Baxi Potterton 30 HE incorporates a range of innovative technologies aimed at enhancing performance and reliability. The automatic modulation function adjusts the boiler's output according to demand, ensuring that it only works as hard as necessary. This not only prolongs the lifespan of the unit but also maximizes comfort levels in the home.

Another feature of the 30 HE is its low noise operation. This boiler has been specifically designed to minimize sound, allowing it to operate quietly in the background without disturbing daily activities. This makes it an ideal choice for homes where noise can be a concern, particularly in open-plan living spaces.

The compact dimensions of the Baxi Potterton 30 HE make it easy to install in various locations, whether it be in a kitchen, utility room, or even a loft space. Its lightweight construction further simplifies the installation process, saving both time and labor costs.

In terms of user-friendliness, the boiler is equipped with an intuitive control panel that allows homeowners to easily adjust settings and monitor performance. This user-centric design ensures that even those who may not be technically inclined can manage their heating requirements with ease.

Safety features are also a priority in the design of the Baxi Potterton 30 HE. It includes built-in safety mechanisms such as frost protection and a burner pressure monitoring system, which work to prevent overheating and ensure optimal operation.

Overall, the Baxi Potterton 30 HE is an efficient, reliable, and user-friendly boiler that meets the heating demands of modern homes. Its blend of advanced technologies, compact size, and focus on safety make it a standout choice for homeowners seeking a high-performance heating solution.

Baxi Potterton 30 HE manual Making The Electrical Connections, Preliminary Electrical Checks

Models: 30 HE