Installation Instructions - Vermont Castings UVL18RP Installation And Operation Instructions Manual

Vent-free gas log sets
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WARNING
Do not allow fans to blow directly into the
fireplace. Avoid any drafts that alter burner
flame patterns.
WARNING: Do not use a blower insert, heat
exchanger insert, or other accessory not
approved for use with this gas logset.
DO NOT burn solid fuels in a fireplace where
an unvented gas room heater or logset is
installed.
Any outside air ducts and/or ashdumps in the
fireplace must be permanently closed at time
of appliance installation.
Preparing the Fireplace
Gas Line Preparation
Before connecting the appliance, turn off all gas
appliances. Close the main gas valve at the gas
meter or appliances. Close the main gas valve at the
gas meter or LP tank. Make certain there is good
ventilation where the installation will be made.
Installation should comply with all applicable building
codes and ANSI Z223.1/NFPA 54, latest edition, or
CSA B-149.1. Use LP gas-resistant pipe compound
to seal threaded joints.
Installation to Existing Gas Line
There should be a manual ON/OFF valve within
easy reach of the appliance. If not, before installation
of the appliance make certain a valve is installed.
There may be a second valve on the line close to the
point where the fireplace line branches off the main
gas supply line. During installation, make certain this
valve is OFF.
Manufactured Fireplace Preparation
Refer to the manufacturer's fireplace installation
manual for the specific method of running the gas
line into the fireplace. The following method is typical
of most manufactured fireplaces.
Insert a 1/2" gas pipe through the gas line tube pro-
vided by the manufacturer, from outside the fireplace,
as marked by the manufacturer. An ON/OFF valve
should be placed within easy reach of the appliance.
After the gas supply is installed, reinstall the insulation
removed from the gas line tube, and pack it around the
pipe, to prevent cold air entry and to protect the gas
line. (Fig. 3)
NOTE: The gas pipe should not come into contact
with any wood structure until it has reached a point
at least one (1) inch away from the fireplace side.
(Fig. 3)
UVL Series

Installation Instructions

Do not install this appliance in bedrooms or
bathrooms.
WARNING: Any change to this heater or its
controls can be dangerous.
Hole in
Outer
Casing
Electrical
Access
Fig. 3 Gas line installation - factory built fireplace.
A 1/2 inch gas supply line must be supplied to the
firebox. In most cases, this will require drilling a gas
line access hole through the masonry wall. The gas
supply line should then be sealed in the access hole
with mortar. The gas supply line should also have a
valve within easy reach of the appliance. Use only
1/2" rigid pipe or approved 3/8" copper tubing. (Do
not use cast-iron pipe).
Clean the fireplace and chimney (if used) of any
ashes, soot, creosote, or obstruction. This will
minimize any smell from the fireplace. We recom-
mend cleaning by a chimney sweep.
The vented fireplace damper should be fully opened
when operating the appliance as a vented log set. A
damper stop clamp with set screw is provided as a
means to prevent full closure of the fireplace damper
blade. The clamp is designed to prevent accidental
closure of the damper when in use. (Fig. 4) (If the
damper stop cannot be installed, the installer should
install a permanent damper stop that will keep the
damper open a minimum of 1¹⁄₂").
1"
Ceramic
Knockout
Gas Access
Holes
Outside Air Access
Masonry Fireplace Installation
Preparation
Flue Damper Preparation
Gas
Supply
Line
Repack
Insulation
760
7

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