Majestic fireplaces UVHK31MP Manual de instruções de instalação e funcionamento - Página 11

Procurar online ou descarregar pdf Manual de instruções de instalação e funcionamento para Aquecedor a gás Majestic fireplaces UVHK31MP. Majestic fireplaces UVHK31MP 20 páginas. Vermont castings gas log heaters installation and operating instructions

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1. Repair Parts

Gas Connection

Check Gas Type. Use only the gas type indicated on the

heater's rating plate. If the gas type indicated on the plate is

not your type of gas supply, DO NOT INSTALL. Contact your

dealer for the proper model.

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH.

Make sure the heater is equipped to operate on

the type of gas available. Models designated as

natural gas are to be used with natural gas only.

Heaters designated for use with liqueﬁed petro-

leum (l.p.) gas have oriﬁces sized for commercial-

ly pure propane gas. They cannot be used with

butane or a mixture of butane and propane.

Gas Piping. The gas supply line must be of an adequate size

to handle the BTU/HR requirements and length of the run for

the unit being installed.

Determine the minimum pipe size from the piping size chart on

Page 12. The normal gas connection at this appliance is 1/2"

NPT made at the left of the unit.

Always use an external regulator for all LP installations to reduce

the supply tank pressure to a maximum of 13" w.c. This is in ad-

dition to the regulator ﬁtted to the heater.

All piping must comply with local codes and ordinances or with

the National Fuel Gas Code (ANSI Z223.1/NFPA 54), whichever

applies.

WARNING: Connecting directly to an unregulated

LP tank can cause an explosion.

Gas Connection. If installation is for L.P. gas, have L.P. in-

staller use two-stage regulation and make all connections from

storage tank to heater. Refer to the National Fuel Gas Code for

the proper supply tank size with the Btu's/Hr requirements. If

this is the ONLY gas appliance, we recommend a minimum 200

pound cylinder with a ﬁll gauge. Use of a 100 pound cylinder

is not recommended. Other household gas appliances may

require the tank size to be larger.

Use two pipe wrenches when making the connection to the

valve to prevent turning or damage to gas valve or regulator.

Connection between the manual shut-off valve and the gas

valve can be made with a CSA design certiﬁed ﬂexible connec-

tor if allowed by local codes. A 10 inch, 1/2" NPT listed stain-

less steel ﬂexible connector is supplied with the gas log heater.

Tighten all joints securely.

CAUTION: Failure to install a drip leg (sediment trap)

may result in improper combustion that will produce soot.

Reference Sections 3.7 and 5.5.7 and Figure 5.5.7 of the

National Fuel Gas Code for guidance.

20008056

Typical Gas Line Connection

Step 1: With the engine assembly free from the ﬁreplace, check

tightness of ﬂexible connector ﬁttings.

CAUTION: Use one wrench to hold the valve and one

wrench to loosen and tighten the brass adapter and the ﬂex

line connection. Failure to hold the valve while loosening

and tightening the ﬁttings can damage the unit and cause

gas leaks.

Step 2: Set the engine assembly into the ﬁreplace and connect

the ﬂexible connector to the gas piping that has been installed

per local codes, or in the absence of local codes, ANSI Z223.1/

NFPA 54 latest edition.

Step 3: After the last connection is made, screw the engine as-

sembly to the bottom of the ﬁreplace. (Fig. 3)

Step 4: Test all connections on the unit and piping for gas

leaks.

Testing the Gas Piping. Test all piping for leaks. When check-

ing gas piping to the heater with gas pressure less than 1/2

PSI, shut off manual gas valve for the heater. If gas piping is to

be checked with the pressure at or above 1/2 PSI, the heater

and manual shut off valve must be disconnected during testing

to prevent damage to the regulator on the unit, (see warning

below).

WARNING

DANGER OF PROPERTY DAMAGE,

BODILY INJURY OR DEATH.

Never use a match or open ﬂame to test for leaks. Never

exceed speciﬁed pressures for testing. High pressures

may damage the appliance regulator which would re-

quire replacement. Liqueﬁed petroleum (L.P.) is heavier

than air and it will settle in any low area, including open

depressions and it will remain there unless area is ven-

tilatedNever attempt start-up of unit before thoroughly

ventilating area.A.

WARNING: Be sure that the gas type indicated on the

gas log rating plate concurs with the gas system in your

building.

To ensure that the gas lines and connections do not have any

leaks, a pressure test should be performed. Only a qualiﬁed

installer should perform the pressure test to ensure that

the unit is not damaged by high pressures!

If you connect natural gas to an LP gas unit, you may be un-

able to ignite the pilot. If the pilot does ignite, the front burner

ﬂame on the low setting will be bright blue but only 1/4" to 1/2"

long and most likely lifting off the burner ports. If this is the

case, turn the unit off immediately and contact the dealer where

the unit was purchased.

If you connect LP gas to a natural gas unit, the front burner

ﬂame on the low setting will be about 6" - 8" long. On the

medium and high setting, the front burner ﬂames will be bright

yellow and about 10" in length. Turn the unit off immediately! If

the unit is allowed to run in this condition, substantial amounts

of soot will be generated and emitted into the house. Contact

the dealer where the unit was purchased.