Baxi MainEco Heat 15 Service Manual download pdf (Page 45)

7215845 - 01 (08/14) MainEco Heat 45

Operation 8

8 Operation

8.1 General

1. It is the responsibility of the installer to instruct the user in the

day to day operation of the boiler and controls and to hand over

the completed Benchmark Checklist at the back of this manual.

2. Set the central heating and hot water temperatures to the

requirements of the user. Instruct the user in the operation of the

boiler and system.

3. The temperature on the boiler rotary knob must be set to a

higher temperature than the cylinder thermostat to achieve the

required hot water demand.

4. Instruct the user in the operation of the boiler and system

controls.

5. Demonstrate to the user the action required if a gas leak

occurs or is suspected. Show them how to turn off the gas

supply at the meter control, and advise them not to operate

electric light or power switched, and to ventilate the property.

6. Show the user the location of the system control isolation

switch, and demonstrate its operation.

7. Advise the user that they may observe a plume of vapour from

the flue terminal, and that it is part of the normal operation of the

boiler.

8. When installed on a sealed system the method of

repressurising the primary system should be demonstrated.

8.2 Start-up

1. Switch on the boiler at the fused spur unit and ensure that the

time control is in the on position and any other controls (i.e.

room thermostat) are calling for heat.

2. The boiler will begin it start sequence.

3. The orange LED will flash at EVERY heating demand. The

number of flashes will correspond with the output of the boiler

e.g. 4 orange flashes = 21kW. This is normal and does not

indicate a fault condition.

8.3 Shutdown

1. If the CH system is shut down for remedial work requiring

either the electrical power to be switched off or the gas supply to

be turned off then any frost protection present will be inactive.

2. Switching off the boiler’s power supply or turning off the gas

supply will disable any frost protection that has been

incorporated into the control system.

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Baxi MainEco Heat 15 Service Manual Page 45