Robur GAHP-W, Инструкция по установке, эксплуатации и обслуживанию, Страница: 50 / 68

GAHP-W – Installation, start-up, use and maintenance manual
48
Edition: 2014-08
If the error persists, contact an authorized Robur Service Company.
c. If the ignition does not fail, the unit should be in normal operation.
6. Switch off the appliance though the DDC (if present) or through the on/off switch
connected to the electronic board (S61).
a. The shut down cycle lasts approximately 10 minutes.
4.2 LONG INACTIVITY PERIOD
Operations to be performed by a qualified installer.
It is necessary to disconnect the appliance, if it has to be inactive for a long period.
1.
Switch off the appliance though the DDC (if present) or through the on/off switch
connected to the electronic board (S61). Wait till the shut down cycle is completed.
2. Switch off the power to the DDC (if present).
3. Switch off the power to the unit.
4. Close the main gas shut off valve.
5. Be sure there is the correct quantity of antifreeze in the primary loop if the unit has to
be off during winter (see Table 15 and Table 16 at page 27).
As an alternative, completely drain the primary water loop.
To re start the unit after a long inactivity period:
1.
Fill the water loop if it has been drained.
2. Add antifreeze if necessary (see Table 15 and Table 16 at page 27) and properly
pressurize the water loop (not lower than 14.5 PSI and not higher than 45 PSI).
If you smell gas, close the main gas shut off valve and call your gas supplier.
3. Switch on the power of the unit.
4. Switch on the power of the DDC (if present).
5. Switch on the unit.
6. Check that the correct water flow is guaranteed to the unit.
7. Switch on the appliance though the DDC (if present) or through the on/off switch
connected to the electronic board (S61).
8. Check the water flow (see Table 2 on page 8).
9. Check the manifold gas pressure (See Table 13 on page 25).
4.3 ELECTRONIC BOARD
The following information refers to the electronic board with firmware version 3.023.
The appliance is equipped with two electronic boards:
-
S61 with a microprocessor that controls the appliance and displays information,
warning and error messages during the unit operation.