Monessen Hearth CDVR33N/PV7 User Manual

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CDVSC7 & CDV7 Series Gas Fireplace
69D3011
7
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
InSTallaTIon ITeMS neeDeD
Before installing fireplace and burner system, make sure you have the items listed below.
  External regulator  
  Piping (check local codes) 
  Sealant (resistant to propane/LP gas)
  (supplied by installer) 
  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 40. Pointing the vent down protects it from freezing rain or sleet. 
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a qualified installer or service person must 
connect appliance to gas supply. Follow 
all local codes.
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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 
FP1977
external regulator
Figure 40 - 
External Regulator with Vent Pointing Down 
(Propane/LP Only)
FP1977
External 
Regulator 
100 lb. (min) 
Propane/LP 
Supply Tank 
Vent Pointing 
Down
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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.
When using copper of flex connectors use only fittings 
approved for gas connections. The gas control inlet is 
3/8" NPT.