Raypak 122-322 manual Pre-Start-Up, Initial START-UP

PRE-START-UP

Filling System-Heating Heaters

Fill system with water. Purge all air from the system using purge valve sequence. After system is purged of air, lower system pressure. Open valves for normal system operation, fill system through feed pressure. Manually open air vent on the compression tank until water appears, then close vent.

Domestic Hotwater Heaters

Purge all air from system before lighting heater. This can be normally be accomplished by opening a down- stream valve.

Inspect Venting System:

1.Check all vent pipe connections and flue pipe material.

2.Ensure vent terminations are installed per code and are clear of all debris or blockage.

For Your Safety Read Before Lighting

WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

1.This appliance does have an intermittent pilot. It is equipped with an ignition device which automati- cally lights the pilot. DO NOT try to light the pilot or burner by hand.

2.BEFORE OPERATING, smell all around the appli- ance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.

3.WHAT TO DO IF YOU SMELL GAS

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any telephone in your building.

•Immediately call your gas supplier from a neigh- bor's telephone. Follow the gas supplier's instructions.

•If you cannot reach your gas supplier, call the fire department.

4.Use only your hand to push in or turn the gas con- trol knob. Never use tools. If the knob will not turn by hand, do not try to repair it, call a qualified serv- ice technician. Forced or attempted repair may result in a fire or explosion.

5.Do not use this appliance if any part has been under water, immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.

6.Check around unit for debris and remove com- bustible products, i.e. gasoline, etc.

Pre-Start-Up Check

1.Verify heater is filled with water.

2.Check system piping for leaks. If found, repair immediately.

3.Vent air from system. Air in system can interfere with water circulation.

4.Purge air from gas line up to heater.

INITIAL START-UP

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

Preparation for Start-Up

WARNING: Do not turn on gas at this time.

Check Power Supply

With volt meter at incoming power check voltage between:

Hot - Common (~120 VAC)

Hot - Ground (~120 VAC)

Common - Ground (< 1 VAC)

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