Below Grade Installation; Check Gas Type; Installing Gas Piping To Fireplace/Burner System Location; Installation Items Needed - MHSC CDVR33N/PV7 Installation And Operating Instructions Manual

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 con-
version kit.
InSTall GaS pIpInG To FIReplaCe / BuRneR SySTeM loCaTIon
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.
•
External regulator
(supplied by installer)
•
Sediment trap (recommended)
•
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 39. Pointing the vent down protects it from freezing rain or sleet.
External
Regulator
Figure 39 -
External Regulator with Vent Pointing Down
(Propane/LP Only)
FP1977
external regulator
69D3011
•
Piping (check local codes)
•
Equipment shutoff valve*
•
Tee joint
100 lb. (min)
Propane/LP
Supply Tank
Vent Pointing
Down
FP1977
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.
•
Sealant (resistant to propane/LP gas)
•
Test gauge connection*
•
Pipe wrench
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.
When using copper of flex connectors use only fittings
approved for gas connections. The gas control inlet is
3/8" NPT.
CDV7 Series Gas Fireplace
5