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106918-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
18
VENTING INSTALLATION
Gas Line Hook-Up
INSTALLATION
Continued
GAS LINE HOOK-UP
WARNING: Gas line hookup should be done by
your gas supplier or a qualified service person.
WARNING: Before you proceed, make sure your
gas supply is OFF.
An equipment shutoff valve has been included in the appliance’s gas
supply system. You may consider installing an extra gas shutoff
valve outside the appliance’s enclosure (check with local codes)
where it can be accessed more conveniently with a key through a
wall as shown in Figure 38.
Route a 1/2" NPT black iron gas line towards the appliance coming
in from the left. It is recommended to route the pipe between the
stand of the firebox and the surround of the fireplace (see Figure 39).
IMPORTANT:
The appliance and its individual shutoff valve must
be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of 1/2 psig.
(3.5 kPa). The appliance must be isolated from the gas supply piping
system by closing its individual equipment shutoff valve during any
pressure testing of the gas supply piping system at test pressures
equal to or less than 1/2 psig. (3.5 kPa).
CAUTION: Compounds used on threaded joints
of gas piping shall be resistant to the action of
Liquefied Petroleum (LP or propane), and should be
applied lightly to ensure excess sealant does not
enter the gas line.
CAUTION: Do not kink flexible gas line.
1. Install a sediment trap between the incoming gas line and the
gas control valve (see Figure 39). The sediment trap should
extend down the center of the pipe. Refer to your local codes.
2. Prepare incoming gas line and check with local codes regard-
ing the use of teflon tape. Complete your gas line installation
by connecting incoming gas line with flexible gas line. Se-
cure tightly with a wrench, but Do NOT overtighten.
WARNING: All gas piping and connections must
be tested for leaks after the installation is completed.
After ensuring that the gas valve is open, apply a soap
and water solution to all connections and joints. If
bubbles appear, leaks can be detected and corrected.
Do not use an open flame for leak testing and do not
operate any appliance if a leak is detected.
WARNING: Improper installation, adjustment, al-
teration, service, or maintenance can cause injury or
property damage. Refer to this manual. For assis-
tance or additional information, consult a qualified
installer, service agency, or gas supplier.
GAS RATING
TYPE OF GAS NATURAL PROPANE/LP
Max. Input Rating: 30,000 Btu/hr 28,000 Btu/hr
Orifice Size (0-4,500 Ft.): 7/64" #52
Minimum Input Rating: 21,000 Btu/hr 20,000 Btu/hr
(When the Valve is in
the LOW Position)
Manifold Pressure: 3.5 in. WC 10.0 in. WC
**Minimum Supply 4.5 in. WC 11.0 in. WC
Pressure:
**Maximum Supply 10.5 in. WC 13.0 in. WC
Pressure:
** For the purpose of input adjustment.
Back Wall
Of Appliance
Incoming 1/2"
Gas Line
Permitted by
Local Codes
Figure 39 - Sediment Trap
Sediment Trap (Not Supplied)
Figure 38 - Typical Exterior Wall Gas Shutoff Installation
Key
Extension
Shutoff Valve