Robur GAHP-W, Инструкция по установке, эксплуатации и обслуживанию, Страница: 32 / 68

GAHP-W – Installation, start-up, use and maintenance manual
30
Edition: 2014-08
The appliance is not equipped with any expansion tank. It is necessary to install a
properly sized expansion tank.
The water pumps must be installed on the inlet (to the unit) water line.
The installation of the water strainer is mandatory. The manufacturer will not be
held responsible or liable for any damage caused by the absence of this
component.
If an automatic filling system is used, a seasonal check of the antifreeze
concentration or glycol fill device is recommended.
The unit has not been designed to produce direct DHW. For this purpose a
dedicated boiler, built and installed according to CSA 1.91-1992 code and following
revisions and to any local codes, has to be used.
FILLING THE SYSTEM (to be carried out by an authorized contractor/installer)
1. Ensure the system is fully connected. Close all air bleed devices and open make-up
water valve. Allow system to fill slowly.
2. Open air bleed devices on all radiator units at the high points in the piping
throughout the system, unless automatic air bleeders are provided at such points.
3. Fill the system adding antifreeze/glycol if necessary. See Table 15 and Table 16, on
page 27.
4. Run the water pumps for a minimum of 15 minutes with the GAHP unit shut off.
5. Open all strainers in the circulating system, check flow switch operation, and check
for debris. If debris is present, clean out to ensure proper circulation.
6. Check liquid level in expansion tank. With the system full of water and under normal
operating pressure, the level of water in the expansion tank should not exceed
¼
of
the total, with the balance
filled with air. The
pressure of the water in the system must
not be lower than 14.5 PSIg and not higher than 45 PSIg.
7. Start up the GAHP unit according to the procedure in this manual.
8. Operate the entire system for one (1) hour.
9. Recheck the water level in the expansion tank. If the water level exceeds
¼
of the
volume of the expansion tank, open the tank drain, and drain to that level.
10. Shut down the entire system and vent all radiator units at the highest point.
11. Within three (3) days of start-up, recheck all air bleeds and the expansion tank as
described
above.
The installer is responsible for identifying to the owner/operator the location of all
emergency shutoff devices.