Crown Aruba 5 Installation Manual

X Start-up and Checkout

NOTE

SAFE LIGHTING AND OTHER PERFORMANCE CRITERIA WERE MET WITH THE GAS MANIFOLD AND

CONTROL ASSEMBLY PROVIDED ON THE BOILER WHEN THE BOILER UNDERWENT THE TESTS

SPECIFIED IN Z21.13.

Use the following procedure for initial start-up of the boiler:

1) Make sure that the boiler and system are lled with water.

2) Check all gas piping for leaks and purge piping sections that are lled with air. See of the National Fuel Gas Code for

additional information on testing and purging gas lines.

3) Verify that vent system is complete and free of obstructions before attempting to re boiler.

4) Inspect all wiring for loose or uninsulated connections.

5) Make sure the main burners are seated properly in the rear of burner tray and on orices.

6) Adjust thermostat to the highest setting.

7) Start the boiler using the operating instructions on page 25. The red LED display on boiler control should illuminate

as soon as power is applied to the boiler, but it will take approximately 1 minute from the time power is applied to the

boiler, and the thermostat is closed, until the rst trial for ignition. For additional information on boiler operation, see

Section XI.

8) Upon initial start-up, the gas train will be lled with air. Even if the gas line has been completely purged of air, it

may take several tries for ignition before a ame is established. Once a ame has been established for the rst time,

subsequent calls for burner operation should result in a ame on the rst try.

9) Inspect the pilot burner ame. The pilot burner produces three ames. The center one should be a steady medium blue

ame covering around 3/8” to 1/2” of spark electrode/ame rod. (Figure 10.1)

10) Make sure vent damper is in open position when main burners are ring.

11) Inspect the main burner ames visible through the observation port in burner access panel. The ame should be stable

and mostly blue (see Figure 10.2). No yellow tipping should be present; however, intermittent ecks of yellow and

orange in the ame are normal.

WARNING

• GAS LEAKS MAY RESULT IN FIRE OR EXPLOSION.

• NEVER USE A FLAME TO CHECK FOR GAS LEAKS.

• MAKE SURE THAT THE AREA AROUND THE BOILER IS CLEAR AND FREE FROM

COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLE VAPORS AND

LIQUIDS.

• WATER LEAKS MAY CAUSE EXTENSIVE PROPERTY DAMAGE.

WARNING

DO NOT LEAVE THE BOILER IN SERVICE IF IT FAILS ANY OF THE FOLLOWING

START-UP CHECKS. DOING SO MAY RESULT IN FIRE, EXPLOSION, OR CARBON

MONOXIDE (CO) POISONING.