Fireplace Installation; Check Gas Type - Monessen Hearth MDV500, MDV600 Installation & Operating Instructions Manual

MDV Series Direct Vent Gas Fireplace
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 according to your gas type.
gas pIpe InstallatIon
a qualified installer or service person must
connect appliance to gas supply. follow
all local codes.
InstallatIon Items needed
Before installing fireplace and burner system, make sure
you have the items listed below.
•
Tee joint
•
Equipment shutoff valve*
•
Sediment trap (recommended)
•
External regulator (supplied by installer)
•
Piping (check local codes)
•
Sealant (resistant to propane/LP gas)
•
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 equip-
ment 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 regula-
tor damage could occur. Install external regulator with the
vent pointing down as shown in Figure 45. Pointing the
vent down protects it from freezing rain or sleet.
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.
28
•
Pipe wrench
•
Test gauge connection*
fIreplace InstallatIon
External
Regulator
Figure 45 -
External Regulator with Vent Pointing Down
(Propane/LP Only)
FP1977
external regulator
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.
external regulators may be necessary for
natural gas. one- or two-pound systems
will damage this appliance and may cause
fire hazard.
When using copper or flex connectors use only fittings
approved for gas connections. The gas control inlet is
3/8" NPT.
100 gal. (min)
Propane/LP
Supply Tank
Vent Pointing
Down
FP1977
75D2523