48
ADB INITIAL START-UP
Tools Needed
• One 8-0-8 , 16” scale manometer (or larger)
• Four 4-0-4, 8” scale manometers (or larger)
• “T” fitting
• 7/16” and 1/2" open end wrenches
• Small and large flat-head screwdrivers
• Volt meter
• Amp probe
• Elec. Dual reading thermometer with strap on sen-
sors
• 3/16” Allen wrench
• Combustion analyzer
Preparation for Start-up
Check Power Supply
With voltmeter at incoming power check voltage
between:
Hot - Common (»120 VAC)
Hot – Ground (»120 VAC)
Common - Ground (< 1 VAC)
If Common - Ground is > 1 VAC - STOP: Contact elec-
trician to correct ground failure.
Attach Manometers to Measure
Pressures (See Fig. 37)
• Attach 16" scale manometer to the first gas shut-
off valve pressure tapping, Location (1)
• Attach one 8" scale manometer to each manual
gas valve pressure tapping, Locations (2) and (3).
• Attach one 8" scale manometer to the outlet side
of pilot gas valve pressure tapping, Location (4).
• Attach one 8" manometer to “T” fitting, air pressure
switch, and aluminum tubing, Location (5).
Turn Off The 1 1/2” Manual Gas Valve;
Turn Off Pilot Gas Valve;
Reset Low Gas Pressure Cut-off Switch;
Bleed Air from Gas Line
• With power off, slightly open union outside the
cabinet to bleed air.
• Close union when you smell gas.
• Wait minimum 5 minutes to clear the gas out of the
boiler room before continuing.
Check the Gas Supply Pressure,
Location (1)
• Leave pilot gas valve and first manual gas valve
closed;
• Slowly turn on main gas shut-off valve (outside the
unit);
• Read the gas supply pressure from the manome-
ter (Location 1);
• If pressure is > 14" W.C., Turn off the valve;
• Check if the service regulator is installed and/or
adjust the service regulator.
START-UP
Blower Adjustment
1. Main gas shut-off valve is still closed;
2. Turn power on;
3. Check blower manometer reading, Location (5).
Compare your reading to the “Pre-Fire” values
shown in tables T and U. If not, adjust the air shut-
ter on the blower to attain the correct value;
4. Turn power off.
Pilot Adjustment
1. Turn on the gas shut-off valve, the main gas man-
ual valve, and the pilot manual valve;
2. Turn off the manual gas valves at Locations (2)
and (3);
3. Turn power on, after 40-45 seconds, ignition con-
trol will energize and send spark to ignition,
observe through view port for spark;
4. If you do not see spark, turn off power, check igni-
CAUTION: Verify that the vent system and
combustion air supply have been approved.
WARNING: DO NOT TURN ON GAS AT THIS
TIME.
WARNING: Failure to do this may burn out 120V-
24V transformer, or may cause other safety control
damage or failure.
CAUTION: Make sure there is no ignition source in
the boiler room.
NOTE: Reference the start-up pressures settings
located on the side of the control box.
