Procom ML170EPC Installation Manual download pdf (Page 10)

10

*A CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap

is an acceptable alternative to test gauge connection. Purchase the optional

CSA/AGA design-certified equipment shutoff valve from your dealer.

Figure 12 -Gas Connection

r

CHECKING GAS

CONNECTIONS

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 com

pressed 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 13).

2. Pressurize supply piping system

by either using compressed air

or opening propane/LP supply

tank valve.

3. Check all joints from propane/LP

supply tank to equipment shutoff

valve (see Figure 14). Apply

mixture of liquid soap and water

to gas joints. Bubbles forming

show a leak.

4. Correct all leaks at once.

IMPORTANT: Install an equipment

shut off valve in an accessible

location. The equipment shutoff

valve is for turning on or shutting

off the gas to the appliance.

from going into heater controls. If

sediment trap is not installed or is

installed wrong, heater may not run

properly.

Apply pipe joint sealant lightly to

male threads. This will prevent

excess sealant from going into pipe.

Excess sealant in pipe could

result in clogged heater valves.

State of Massachusetts : The installa-

tion must be made by a licensed

plumber or gas fitter in the Common-

wealth of Massachusetts.

Sellers of unvented propane or natural

gas-fired supplemental room heaters

shall provide to each purchaser a copy

of 527 CMR30 upon sale of the unit.

In the State of Massachusetts,unvented

propane and natural gas-fired space

heaters shall be prohibited in bed-

rooms and bathrooms.

Install sediment trap in supply line

as shown in Figure 12. Locate

sediment trap where it is within

reach for cleaning. Locate sedi-

ment trap where trapped matter is

not likely to freeze. A sediment trap

traps moisture and contaminants.

This keeps them

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 al joints. Bubbles

forming show a leak. Correctall

leaks at once.

CAUTION: Make sure exter-

nal regulator has been installed be-

tween gas supply and heater. See

guidelines under Connecting to Gas

Supply.

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