Procom ML300HGA Installation Manual download pdf (Page 10)

Figure 15 -Equipment Shutoff Valve

CHECKING GAS

CONNECTIONS

WARNING: Test all gas piping

and connections for leaks after

installing or servicing. Correct all

leaks at once.

WARNING: Never use an open

flame to check for a leak. Apply a

mixture of liquid soap and water

to all joints. Bubbles forming

show a leak. Correct all leaks at

once.

Pressure Testing Gas Supply

Piping System

Test Pressures In Excess Of

1/2 PSIG (3.5 K Pa)

1. Disconnect appliance with its

appliance main gas valve

(control valve) and equipment

shutoff valve from gas supply

piping system. Pressures in

excess of 1/2 psig will damage

heater regulator.

2. Cap off open end of gas pipe

where equipment shutoff valve

was connected.

3. Pressurize supply piping

system by either using

compressed air or opening

propane/LP supply tank valve.

4. Check all joints of gas supply

piping system. Apply mixture of

liquid soap and water to gas

joints. Bubbles forming show

a leak.

5. Correct all leaks at once.

6. Reconnect heater and equipment

shutoff valve to gas supply. Check

reconnected fittings for leaks.

Test Pressures Equal To or

Less Than 1/2 PSIG (3.5 K Pa)

1. Close equipment shutoff valve

(see Figure 15).

2. Pressurize supply piping system

by either using compressed air

or opening propane/LP supply

tank valve.

3. Check all joints from gas meter

to equipment shutoff valve

(see Figure 16). Apply mixture

of liquid soap and water

to gas joints. Bubbles forming

show a leak.

4. Correct all leaks at once.

Pressure Testing Heater Gas

Connections

1. Open equipment shutoff valve

(see Figure 15).

2. Open propane/LP supply tank

valve.

3. Make sure control knob of

heater is in the OFF position.

4. Check all joints from equipment

shutoff valve to control valve

(see Figure 16 ). Apply mixture of

liquid soap and water to gas

joints. Bubbles forming show

a leak.

5. Correct all leaks at once.

6. Light heater (see Operating

Heater, pages 10 and 11 for

thermostat model or page 12

for non-thermostat model).

Check the rest of the internal

joints for leaks.

7. Turn off heater (see To Turn Off

Gas To Appliance, page 11 for

thermostat model or page

12 for non-thermostat model).

8. Replace lower front panel.

THERMOSTAT MODEL

ML300TGA

nFOR YOUR SAFETYn

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.

A. This appliance has a pilot which

must be lighted by hand.

When lighting the pilot, follow

these instructions exactly.

B. BEFORE LIGHTING smell all

around the appliance area for

gas. Be sure to smell next to

the floor because some gas is

heavier than air and will settle

on the floor .

WHAT TO DO IF YOU SMELL GAS

l Do not try to light any appliance.

l Do not touch any electric switch;

do not use any phone in your

building.

l Immediately call your gas

supplier from a neighbor’s

phone. Follow the gas

supplier’s instructions.

l If you cannot reach your

gas supplier, call the fire

department.

C. Use only your hand to push in

or turn the gas control knob.

Never use tools. If the knob

will not push in or turn by

hand, don’t try to repair it, call

a qualified service technician or

gas supplier. Force or attempted

repair may result in a fire or

explosion.

D. 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.

Figure 16 -Checking Gas Joints

INSTALLATION

OPERATING YOUR HEATER

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 21 22

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Procom ML300HGA Installation Manual Page 10

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