Bradford-White Corp BRHHV, BRHHH warranty Operating Instructions, Filling the Boiler System

Page 36 ΒΡΑΔΦΟΡΔ ΩΗΙΤΕ ΧΟΡΠ.

Section 6

OPERATING INSTRUCTIONS

6.1 Filling the Boiler System

1.Ensure the system is fully connected. Close all bleeding devices and open make-up water valve. Allow system to fill slowly.

2.If make-up water pump is employed, adjust pressure switch on pumping system to provide a minimum of 12 psi (81.8 kPa) at the highest point in the heating loop.

3.If a water pressure regulator is provided on the make-up water line, adjust the pressure regulator to provide at least 12 psi (81.8 kPa) at the highest point in the heating loop.

4.Open bleeding devices on all radiation units at the high points in the piping throughout the system, unless automatic air bleeders are provided at such points.

Note that there is an air bleed (coin vent) located in the back of the unit, on top of the flue collector, to bleed air from the secondary (stainless steel) heat exchanger.

5.Run system circulating pump for a minimum of 30 minutes with the boiler shut off.

6.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.

7.Recheck all air bleeders as described in Step 4.

8.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.

9.Start up boiler according the procedure in this manual. Operate the entire system, including the pump, boiler, and radiation units for one (1) hour.

10.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.

11.Shut down the entire system and vent all radiation units and high points in the system piping, as described in Step 4.

12.Close make-up water valve and check strainer in pressure reducing valve for sediment or debris from the make-up water line. Reopen make-up water valve.

13.Check gauge for correct water pressure and also check water level in the system. If the height indicated above the boiler insures that water is at the highest point in the circulating loop, then the system is ready for operation.

14.Refer to local codes and the make-up water valve manufacturer’s instructions as to whether the make-up water valve should be left open or closed.

15.After placing the unit in operation, the ignition system safety shutoff device must be tested. First, shut off the manual gas valve, and call the unit for heat. Main gas terminals will be energized, attempting to light, for seven (7) seconds, and then will de-energize. The unit will go into lockout mode. Second, turn the power off, press the manual reset button on the ignition control, open the manual gas valve and allow the unit

to light. While the unit is operating, close the manual gas valve and ensure that power to the main gas valve has been cut.

16.Within three (3) days of start-up, recheck all air bleeders and the expansion tank as described in Steps 4 and 8 above.

Important: The installer is responsible for identifying to the owner/operator the location of all emergency shutoff devices.

WARNING

Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance

and to replace any part of the control system and any gas control that may have been

under water.

6.2Operating the Burner and Set Up

The Brute Magnum modulating appliance utilizes

an advanced, state-of-the-art design. The setup must be checked before the unit is put in operation. Problems such as failure to start, rough ignition, strong exhaust odors, etc. can be due to improper setup. Damage to the boiler resulting from improper setup is not covered by the limited warranty.

REQUIRED TOOLS:

Differential pressure gauge capable of reading negative 0.01 inches W.C. (0.002kPa).

1.Using this manual, make sure the installation is complete and fully in compliance with the instructions.

2.Determine that the appliance and system are filled with water and all air has been bled from both. Open all valves.

3.Observe all warnings on the Operating Instructions label and turn on gas and electrical power to appliance.

4.There is a gas/air test panel to the left of the control panel, at the front of the unit (see Figures 25 and 32). Ensure that all four valves on the test