Raypak 1501 - Manual (Page 59)

SECTION O: ADB INITIAL START-UP
59
CAUTION: Verify that the vent system and combustion air supply have been approved.
1.0 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 sensors
• 3/16” Allen wrench
• Combustion analyzer
2.0 PREPARATION FOR START-UP
WARNING: DO NOT TURN ON GAS AT THIS TIME
2.1 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 electrician to correct ground failure.
WARNING: Failure to do this may burn out 120V-24V transformer, or may cause other safety control damage or
failure.
2.2 Attach Manometers to Measure Pressures (See Figure: O-1)
• 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 ½ “ Manual Gas Valve;
Turn Off Pilot Gas Valve;
Reset Low Gas Pressure Cut-off Switch;
2.3 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.