Monessen Hearth Direct Vent Gas Fireplace KHLDV SERIES - Manual (Page 23)

73D0024 23
Figure 23 - External Regulator with Vent Pointing
Down (Propane/LP Only)
Use only new black iron or steel pipe.
Internally tinned copper or copper
tubing can be used per National Fuel
Code, section 2.6.3, providing gas
meets hydrogen sulfide limits, and
where permitted by local codes. Gas
piping system must be sized to provide
minimum inlet pressure (listed on
data plate) at the maximum fl ow rate
(BTU/hr). Undue pressure loss will
occur if the pipe is too small.
CAUTION
FIREPLACE INSTALLATION
CHECK GAS TYPE
Use proper gas type for the fireplace you are installing. If you have conflicting gas type, do not install fireplace. See dealer
where you purchased the fireplace for proper fireplace for your gas type or conversion kit.
INSTALLING GAS PIPING TO FIREPLACE / BURNER SYSTEM LOCATION
For propane/LP units, never connect fi replace directly to the propane/LP supply. This
burner system requires an external regulator (not supplied). Install the external regulator
between the burner system and propane/LP supply.
CAUTION
A qualifi ed installer or service person
must connect appliance to gas supply.
Follow all local codes.
W
A
RNING
INSTALLATION ITEMS NEEDED
Before installing fireplace and burner system, make sure you have the items listed below.
• External regulator (supplied by installer) • Piping (check local codes)
• Sealant (resistant to propane/LP gas)
• Equipment shutoff valve* • Test gauge connection* • Sediment trap (recommended)
• Tee joint • Pipe wrench
• Approved flexible gas line with gas connector (if allowed by local codes — not provided)
* A CSA design-certified equipment shutoff valve with
1 /
8
" NPT tap is an acceptable alternative to test gauge connection.
Purchase the CSA design-certified equipment shutoff valve from your dealer.
For propane/LP connections only, 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 13 inches of water. If you do not reduce incoming
gas pressure, burner system regulator damage could occur. Install external regulator with the vent pointing down as shown
in Figure 23. Pointing the vent down protects it from freezing rain or sleet.
External
Regulator
100 gallon
(min)
Propane/LP
Supply Tank
Vent
Pointing
Down
When using copper of flex connectors use only fittings
approved for gas connections. The gas control inlet is
3 /
8
" NPT.