Set Appliance State:
Mains Power Off
DHW Demand
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
This test consists of two checks.
1. Make sure there is no demand for heating. Inspect the Indicator lever on the side of the Heating valve, at rest with no demand the lever should be in the A position.
Is the valve at rest with no heating demand?
2. If the system is cold, place a demand for hot water and monitor the temperature of the radiators.
Does the temperature of the radiators increase during a Hot Water only demand?
Note: If the system is already hot it may be difficult to gauge an increase in the radiator temperature, you will need to question the customer as to the symptoms of the fault.
1. Make sure there is no demand for heating. Inspect the Indicator lever on the side of the Heating valve, at rest with no demand the lever should be in the A position.
Is the valve at rest with no heating demand?
2. If the system is cold, place a demand for hot water and monitor the temperature of the radiators.
Does the temperature of the radiators increase during a Hot Water only demand?
Note: If the system is already hot it may be difficult to gauge an increase in the radiator temperature, you will need to question the customer as to the symptoms of the fault.
