5. START-UP
5.1. Filling the boiler
- Open a tap (air vent and end-of-fill check).
- Check that the drain valve is closed.
- Open the cold water supply valve.
- Close the tap opened previously once the storage tank has been completely
filled and vented.
- Check the water pressure, which must be less than 7 bar, and the safety
valve, which must not leak.
5.2. Starting-up
WARNING:
Never operate the water heater if it is not filled with water.
1. Switch on the main circuit breaker.
2. Create a request for heat via the comfort mode using the customer
interface (see the NAVISTEM H3100 manual).
3. After starting the burner, check the gas tightness of the gas line connections
using a foaming product. Check the combustion hygiene using a smoke
analyser via a sampling plug on the fume nozzle.
CO
2
value range: refer to chapter 3.3
4. Adjust the DHW setpoint (settings 1610 and 1612 - refer to the table
summarising customer parameters at the end of this manual).
6. CHECKS AFTER COMMISSIONING
6.1. Condensate removal
Check that the removal of condensates is not obstructed, on both the boiler
side and the pipe side.
6.2. Gas supply
Check that the gas pipe diameter is correctly sized:
It is necessary to stop all the gas appliances from the boiler room together
abruptly using the boiler room main circuit breaker to check that the gas
pressure regulator safety device is not triggered.
If this is triggered, the gas pipe is undersized. After this operation, reengage
the circuit breaker. The storage tanks must start automatically, if not, consult
the supplier of the gas pressure regulator.
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00U07337760-A
DORCHESTER DR-SG -
Installation, Operation and Maintenance