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ADB INITIAL START-UP
CAUTION: Verify that the vent system and
combustion air supply have been approved.
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
WARNING: DO NOT TURN ON GAS AT THIS
TIME.
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.
WARNING: Failure to do this may burn out 120V-
24V transformer, or may cause other safety control
damage or 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
CAUTION: Make sure there is no ignition source in
the boiler room.
•
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
NOTE: Reference the start-up pressures settings
located on the side of the control box.
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-
48
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