Raypak 122-322, Operating And Installation Instructions

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SECTION N: INITIAL START-UP
1.0 TOOLS NEEDED
• One 12-0-12, 24” scale manometer
• Two 6-0-6, 12” scale manometers
• 7/16” open end wrench
• 1/2” open end wrench
• Screwdriver
• Volt meter
• 3/16” Allen wrench
2.0 PREPARATION FOR START-UP
WARNING: DO NOT TURN ON GAS AT THIS TIME
2.1 Check Power Supply
With volt meter 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
• Attach 24" scale manometer to the first main gas shut-off valve pressure tapping.
• Attach one 12" scale manometer to the manifold gas pressure tapping. (See gas valve detail on page 7.)
• Attach one 12" scale manometer to — Pull rubber tube from air pressure switch off the aluminum tubing and
connect the manometer using a tee.
Turn Off Main Gas Valve;
2.3 Check the Gas Supply Pressure
1. Slowly turn on main gas shut-off valve.
2. Read the gas supply pressure from the manometer; minimum supply pressure is 5” W.C., recommended supply is
7” W.C. for natural gas (minimum 12” W.C. for LP gas).
3. If pressure is > 14" W.C., turn off the valve.
4. Check if the service regulator is installed and/or adjust the service regulator.
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