Monessen Hearth HDV500NV/PV User Manual
56D3048
7
HDV Series Direct Vent Gas Fireplace
FIRePlACe INStAllAtIoN
CHeCK GAS tyPe
CHeCK GAS tyPe
Use proper gas type for the fireplace you are installing. If you have conflicting gas type, do not install fire-
place. See dealer where you purchased the fireplace for proper fireplace according to your gas type.
place. See dealer where you purchased the fireplace for proper fireplace according to your gas type.
INStAll GAS PIPING to FIRePlACe loCAtIoN
W
ARNING
A qualified installer or service person must
connect appliance to gas supply. Follow
all local codes.
connect appliance to gas supply. Follow
all local codes.
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ut
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For propane/lP units, never connect
fireplace 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.
fireplace 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.
INStAllAtIoN IteMS NeeDeD
Before installing fireplace and burner system, make sure you have the items listed below.
•
External regulator (supplied by installer)
•
Sealant (resistant to propane/LP gas)
•
Tee joint
•
Test gauge connection*
•
Piping (check local codes)
•
Sediment trap (optional but recommended)
•
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.
dealer.
For propane/LP connections only, the installer must supply an external regulator. The external regula-
tor 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 41. Pointing
the vent down protects it from freezing rain or sleet.
tor 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 41. Pointing
the vent down protects it from freezing rain or sleet.
FP1977
external regulator
external regulator
External
Regulator
Regulator
100 gal. (min)
Propane/LP
Supply Tank
Propane/LP
Supply Tank
Vent Pointing
Down
Down
Figure 41 -
External Regulator with Vent Pointing Down
(Propane/LP Only)
External Regulator with Vent Pointing Down
(Propane/LP Only)
FP1977
When using copper or flex connectors use only fittings
approved for gas connections. The gas control inlet is
3/8" NPT.
approved for gas connections. The gas control inlet is
3/8" NPT.
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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 flow rate (Btu/hr).
undue pressure loss will occur if the pipe
is too small.
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 flow rate (Btu/hr).
undue pressure loss will occur if the pipe
is too small.
W
ARNING
external regulators may be necessary for
natural gas. one- or two-pound systems
will damage this appliance and may cause
fire hazard.
natural gas. one- or two-pound systems
will damage this appliance and may cause
fire hazard.