Introduction, Instant Domestic Hot Water

Hinged Lower

Door Panel

Facia Panel

		PREHEAT
30o 40o 50o 60o 70o 80o		OFF
			2
Reset	ON	1	3
		0	4
			bar

	1	2		3		4	5
Fig. 3	6	7	8	9	10	11
Fig. 3
	30o	40o	50o	60o	70o	80o

2.0Introduction

2.1Introduction

1.Your Baxi Combi Instant 80 HE or 105 HE is a gas fired, room sealed, powered flue condensing combination boiler, providing central heating for your home and mains fed domestic hot water to taps and shower. It is fully automatic and does not have a pilot light.

2.Priority is given to the hot water mode - when a hot water tap is turned on the supply of heat to the central heating circuit is interrupted.

3.Due to the high efficiency and resultant low flue gas temperature when in condensing mode a white plume of condensate will be emitted from the terminal. This will be particularly evident during periods of low outside temperature.

2.2Instant Domestic Hot Water

1. The boiler expansion vessel incorporates a small

volume of stored primary hot water.

2. When the boiler has been off and there is then a

demand for domestic hot water the stored primary hot

water ensures that domestic hot water is supplied

instantly at temperature.

3. The stored hot water is part of the primary circuit. This

is not supplied as domestic hot water, which is fresh

mains water heated by a heat exchanger within the boiler.

4. The stored primary hot water temperature is

maintained whilst the boiler is in operation. During a

period when there is no demand for heating or hot water

the temperature of the stored primary hot water will

eventually fall. The boiler will operate occasionally in

order to maintain the temperature. This is indicated by

the domestic hot water mode neon flashing (item 13 of

Fig. 3).

12 13 14

KEY TO FACIA PANEL (Fig. 3)

1.On/Off/Reset Selector Switch

2.Central Heating Temperature Control

3.Pre-Heat Control

4.Central Heating System Pressure Gauge

5.Optional Integral Timer Position

Neon Indicators

6.Flame Failure or Blocked Condensate Drain

7.Safety Thermostat Activated (Boiler or Flue)

8.Fault on Fan or Flue

9.Fault on Pump or Low System Pressure

10.Fault on Hot Water Sensor

11.Fault on Central Heating Sensor

12.Power On

13.Domestic Hot Water Mode

14.Central Heating Mode

15.Burner On

When neons 6 to 11 are

constantly illuminated, they

indicate the temperature of the

central heating water.

2.3	Facia Panel

1.The facia panel is behind the hinged lower door panel. As well as the on/off/reset selector switch, central heating temperature control knob, pre-heat control and pressure gauge, the facia incorporates ten neon indicator lights.

2.Neons 12 to 15 indicate the operational status of the boiler. Neons 6 to 11 have a dual function, indicating the temperature of the central heating water when constantly illuminated. If a fault develops the appropriate neon will begin to flash. Refer to Sections 3.3 to 3.7.

80 HE, 105 HE specifications

The Baxi Potterton 105 HE is a popular choice for homeowners seeking an efficient and reliable heating solution. Known for its innovative technology and user-friendly features, this boiler is designed to meet the demands of any household while ensuring comfort and energy efficiency.

One of the standout features of the Baxi Potterton 105 HE is its impressive energy efficiency rating. With a high Seasonal Efficiency of Heating (SEDBUK) rating, it can significantly reduce energy bills by maximizing heat output while minimizing fuel consumption. This is particularly important for environmentally conscious consumers looking to decrease their carbon footprint.

The boiler employs a compact design, making it suitable for various installation scenarios, including tight spaces. Weighing relatively light and equipped with rear flue option, it facilitates easier placement in kitchens, utility rooms, or lofts without requiring significant alterations to existing layouts.

The Baxi Potterton 105 HE boasts a reliable and user-friendly digital display, allowing users to monitor their heating system effortlessly. It features a built-in time clock that can be programmed for heating schedules, providing flexibility and ensuring warmth when needed most. Additionally, a wide range of system control options is available, enabling integration with smart thermostats for even greater control over home heating.

This boiler is equipped with a modulating burner, which adjusts the heat output based on the heating demand. This technology enhances comfort by maintaining consistent temperatures and reducing the risk of overheating or underheating rooms. It further supports efficiency by using only the necessary amount of fuel during operation.

Maintenance is simplified with the Baxi Potterton 105 HE, which is designed with easy access points for servicing. The inclusion of fewer components in its construction helps minimize the likelihood of mechanical failures, promoting reliability and longevity.

Safety features are also paramount in the design of the Baxi Potterton 105 HE. It incorporates advanced diagnostics and safety cut-offs to protect both the appliance and the household from potential hazards.

Overall, the Baxi Potterton 105 HE combines energy efficiency, modern technology, and practical design to deliver a top-tier heating solution for today's homes. Its well-rounded features make it a wise investment for anyone looking to enhance their home comfort while remaining mindful of energy consumption.