Desa BQMV24N - Manual (Page 7)

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INSTALLING APPLIANCE
WARNING: Special care is
required if you are installing the
unit into a sunken fireplace. You
must raise the fireplace floor to
allow access to gas log controls.
This will insure adequate air
flow and guard against sooting.
Raise the fireplace floor using
noncombustible material.
CAUTION: Do not pick up ap-
pliance assembly by logs. This
could damage unit. Only handle
assembly by grate.
IMPORTANT: Make sure appliance is level. If
unit is not level it will not work properly.
Center the appliance in the fireplace. Make certain
the grate front feet sit inside the front edge of
the fireplace and that there is adequate clearance
around the appliance for access and operation.
Note:
The installation of appliances designed for
manufactured home (U.S. only) or mobile home
installation must conform with the standard CAN/
CSA Z240, Mobile Housing, in Canada, or with
the Manufactured Home Construction and Safety
Standard, Title 24 CFR, Part 3280, in the United
States, or when such a standard is not applicable,
ANSI/NCSBCSA225.1/NFPA501A, Manufactured
Home Installations Standard .
CONNECTING TO GAS SUPPLY
WARNING: A qualified service
person must connect heater to gas
supply. Follow all local codes.
WARNING: This appliance
requires a 3/8" NPT (National Pipe
Thread) inlet connection to the
control valve.
INSTALLATION
Continued
CAUTION: Never connect
propane/LP unit directly to the
propane/LP supply. This unit re-
quires an external regulator (not
supplied). Install the external
regulator between the unit and
the propane/LP supply.
WARNING: Never connect
natural gas fireplace to private
(non-utility) gas wells. This
gas is commonly known as
wellhead gas.
Installation Items Needed
Before installing heater, make sure you have the
items listed below.
• approved flexible gas hose and fittings (supplied
with appliance -if allowed by local codes)
• external regulator (propane/LP models only)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve*
• test gauge connection*
• sediment trap
• tee joint
• pipe wrench
* A CSA design-certified equipment shutoff valve
with 1/8" NPT tap is an acceptable alternative to
test gauge connection. Purchase the optional CSA
design-certified equipment shutoff valve from your
dealer. See Accessories, page 17.
For propane/LP units, the installer must supply an
external regulator. The external regulator will reduce
incoming gas pressure. You must reduce incoming gas
pressure to between 11 and 14 inches of water. If you
do not reduce incoming gas pressure, control valve
damage could occur. Install external regulator with the
vent pointing down as shown in Figure 6. Pointing the
vent down protects it from freezing rain or sleet.
Propane/LP
Supply Tank
External
Regulator
Vent
Pointing
Down
Figure 6 - External Regulator with Vent
Pointing Down