Page 2 - CDVX Series Direct Vent Gas Fireplace; Table of Contents; Logs
2 CDVX Series Direct Vent Gas Fireplace 20012253 PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE. Thank you and congratulations on your purchase of a MHSC fireplace.IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follo...
Page 3 - PLEASE REVIEW THE FOLLOWING CAREFULLY; Installation & Operating Instructions; Proposition 65 Warning:; Certified To; Vented Gas Fireplace Heaters; OFF
3 CDVX Series Direct Vent Gas Fireplace 20012253 This gas appliance should be installed by a qualified installer, preferably NFI or WETT (Canada) certified, in accordance with local building codes and with current CSA-B149.1 Installation codes for Gas Burning Appliances and Equipment. For USA Instal...
Page 4 - “GAS VENT DIRECTLY BELOW, KEEP; MANUFACTURER REQUIREMENTS; Gas Equipment Venting System NOT Provided
4 CDVX Series Direct Vent Gas Fireplace 20012253 Requirements for the Commonwealth of Massachusetts All gas fitting and installation of this heater shall only be done by a licensed gas fitter or licensed plumber.For all side wall horizontally vented gas fueled equipment installed in every dwelling, ...
Page 5 - Fireplace Dimensions - Rear Vent; Fireplace specifications and framing dimensions.
5 CDVX Series Direct Vent Gas Fireplace 20012253 7 6 ” (187 mm) 16 6 ” (422 mm) 36 56M ” (921 mm) Minimum Rough Opening Width MinimumRoughOpeningHeight MinimumRoughOpeningDepth *48 56M ” (1226 mm) **41 6 ” (1051 mm) *68 56M ” (1734 mm) **58 6 ” (1483 mm) 17 56 ” (435 mm) 25” (635 mm) 22” (559 mm) 1...
Page 6 - Fireplace Dimensions - Top Vent
6 CDVX Series Direct Vent Gas Fireplace 20012253 7 6 ” (187 mm) 16 6 ” (422 mm) 36 56M ” (921 mm) Minimum Rough Opening Width MinimumRoughOpeningHeight MinimumRoughOpeningDepth 41 6 ” (1051 mm) 58 6 ” (1483 mm) 17 56 ” (435 mm) 25” (635 mm) 21 56 ” (537 mm) 35 56M ” (895 mm) 35” (889 mm) 34 6M ” (88...
Page 7 - Appliance; Mantels; Combustible mantel leg minimum installation.; Mantel Chart; Combustible mantel minimum installation.; Locating Your Fireplace; Locate gas fireplace.
7 CDVX Series Direct Vent Gas Fireplace 20012253 Top of Unit to Ceiling ............................... 36” (914 mm)Front of Unit to Combustibles .................. 36” (914 mm) Appliance Top .......................................................... 0” (0 mm) Bottom ...................................
Page 8 - Cold climate installation recommendation:; Hearth; must; Hood Installation; CAUTION: Hood MUST be permanently installed.; flange location; Flange Location for Desired; standoff location; DO NOT; Final Finishing
8 CDVX Series Direct Vent Gas Fireplace 20012253 A hearth is not mandatory but is recommended for aesthetic purposes. We recommend a noncombustible hearth which projects out 12” (305 mm) or more from the front of the fireplace. Cold climate installation recommendation: When installing this unit agai...
Page 9 - Gas Specifications; Installation; INSTA VENT FREE; Typical gas supply installation.; Remote switch; Remote switch wiring diagram.; Gas Line Installation
9 CDVX Series Direct Vent Gas Fireplace 20012253 Gas Specifications Max. Min. Input Input Model Fuel Gas Control BTU/h BTU/h 36CDVXRRN Nat Millivolt 21,000 14,700 36CDVXRRP* Prop Millivolt 21,000 15,750 36CDVXTRN Nat Millivolt 21,000 14,700 36CDVXTRP* Prop Millivolt 21,000 15,750 *Using conversion k...
Page 10 - electric cover plate and secure.; 20V Electrical Hook Up; Insert the house wire through the connector on the; Electric receptacle.; There must not be any obstruction; General Venting; Location of Vent Termination
10 CDVX Series Direct Vent Gas Fireplace 20012253 The fireplace, when installed, must be electrically connected and grounded in accordance with local codes or, in the ab-sence of local codes, with the current CSA C22.1 Canadian Electrical Code. For USA installations follow local codes and the nation...
Page 11 - General Venting Information - Termination Location; Canadian Installations
11 CDVX Series Direct Vent Gas Fireplace 20012253 V V V V V V V X X X D E B B B C B M B A J K F L VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED H I Ýi` Ãi` Operable Operable Fixed Closed V B CFM145aDV Termin Location5/01/01 Rev. 12/05/01 sta INSIDE CORNER DETAIL V A G N N...
Page 12 - General Information Assembling Vent Pipes; Canadian Installations:; MHSC can; Flex Vent Pipes; Termination clearances.; Apply high temperature sealant to 4” and 7” pipes.; Termination Clearances; of Caps
12 CDVX Series Direct Vent Gas Fireplace 20012253 General Information Assembling Vent Pipes Canadian Installations: Venting system must be installed in accordance with the current CSA-B149.1 installation code. USA Installations: The venting system must conform with local codes and/or the current Nat...
Page 13 - How to Use the Vent Graph; Horizontal dimension from the outside face of the; ertical dimension from the floor of the unit; DV Graphic; Rear Wall Venting Applications; Twist Lock Pipes; 6CDVXR Venting
13 CDVX Series Direct Vent Gas Fireplace 20012253 The vent chart should be read in conjunction with the following vent installation instructions to determine the relationship of the vertical and horizontal dimensions of the vent system.1. Determine the height of the center of the horizontal vent pip...
Page 14 - Top View; Rear vent applications.; Rear Wall Installation; Combustible Walls; Vent Opening for Combustible Wall; Locate vent opening on wall.
14 CDVX Series Direct Vent Gas Fireplace 20012253 • Minimum clearances between vent pipe and com-bustible materials are as follows: Top - 1” (25 mm) Sides - 1” (25 mm) Bottom - 1” (25 mm) • The maximum horizontal distance between the end of the transition elbow in a corner application and the outsid...
Page 15 - Rear Wall Vent Installations -; Locate the center of the hole 29; Grasp the vent pipe close to the collar and bend to
15 CDVX Series Direct Vent Gas Fireplace 20012253 FP1005 Side View Vent Termination 1/25/00 djt 22” (559 mm) CL Finished Wall Secure with Screw Vent Termination Firestop FP1005a Fig. 19 Side view of final unit location. Rear Wall Vent Installations - 45° Flex Vent Pipe Using Kit 7TCD45KT NOTE: The c...
Page 16 - Bend flex pipe up 90° as close to fireplace as pos-; IMPORTANT: Vent must have a 2; The centerline of the termination must be 24; Locate the hole 27; The centerline of the termination must be 27
16 CDVX Series Direct Vent Gas Fireplace 20012253 &0REARFLEXVENT Fig. 21 Bend flex pipe up 90° as close to fireplace as pos- sible. FP1604 &0REARVIEWFLEXVENT Do Not Exceed 45° Bend Corner Framing Termination FP1606 Fig. 22 Rear view of corner installation. &0FLEXTERM Screw Collar Screws ...
Page 17 - Vertical Sidewall Applications; Maximum vent run with elbows.; Maximum horizontal vent run.
17 CDVX Series Direct Vent Gas Fireplace 20012253 needs to have an immediate rise before going hori-zontal. NOTE: Be careful not to distort the outer flex as this will affect the performance of the fireplace. 6. Secure the collar to the firestop by bending the tab out on the firestop and running a s...
Page 18 - Maximum number of elbows.; •IMPORTANT•; Minimum clearance between vent; Vertical Sidewall Installation; Always start vertical run with 7TCDV90 on 36CDVR; Measure horizontal length including 2” overlap.
18 CDVX Series Direct Vent Gas Fireplace 20012253 1 2 3 4 1 + 2 + 3 + 4 = 270 o CFM132 Insert Rear Vent Sidewall 2/26/01 sta CFM132 Fig. 29 Maximum number of elbows. Example: Elbow 1 = 90‡ Elbow 2 = 45‡ Elbow 3 = 45‡ Elbow 4 = 90‡ Total angular variation = 270‡ •IMPORTANT• Minimum clearance between ...
Page 19 - Apply high temperature sealant.; Below Grade Installation; Ensure sidewall venting clearances are observed.; Below grade installation; Below grade installation.
19 CDVX Series Direct Vent Gas Fireplace 20012253 STEP 6 Support the horizontal pipes every 36” (914 mm) with metal pipe straps. Make sure that the horizontal vent pipe is installed on a level horizontal plane. STEP 7 Re-check the fireplace to make sure that it is levelled, properly positioned, and ...
Page 20 - Snorkel installation, recessed foundation.; Up to two 45° elbows may be used within the; Support straps for horizontal runs.; Typical vertical; Typical vertical roof applications.; above and mark position.
20 CDVX Series Direct Vent Gas Fireplace 20012253 Do not back fill around snorkel. A clearance of at least 4” (102 mm) must be maintained between the snorkel and the soil. BG401 Snorkel 2/10/99 djt Foundation Recess Snorkel Wall Screws Recess Brackets Watertight Seal Around Pipe Sheet Metal Screws B...
Page 21 - Upper Floor; Install appropriate pipe sections until the venting is; Minimum termination to roof clearance.
21 CDVX Series Direct Vent Gas Fireplace 20012253 CFM100 Firestop-Vertical 09/20/00 11" 11" Joist Joist Firestop Spacer Nails (4) Upper Floor Attic Insulation Shield Ceiling Installation CFM100 Fig. 38 Place firestop spacer(s) and secure. If there is room above ceiling level, firestop spacer...
Page 22 - From the point of this intersection, draw a vertical; 6CDVXT Vertical Venting; 6 CDVXT Top Vent Baffle; Tighten the screws in the flue baffle and insert the; Loosen screws securing flue baffle.
22 CDVX Series Direct Vent Gas Fireplace 20012253 How to Use the Vent Graph The vent chart should be read in conjunction with the following vent installation instructions to determine the relationship of the vertical and horizontal dimensions of the vent system.1. Determine the height of the center ...
Page 23 - According to the chart the maximum; Noncombustible Walls:; Vertical Sidewall Installations
23 CDVX Series Direct Vent Gas Fireplace 20012253 Since it is very important that the vent-ing system maintain its balance between the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to. The vent graph showing the relat...
Page 24 - Maximum number of elbow degrees.; cal height (X) required from the base of the flue collars; Vertical height requirement.
24 CDVX Series Direct Vent Gas Fireplace 20012253 1 2 3 4 Example: Elbow 1 = 90° Elbow 2 = 45° Elbow 3 = 45° Elbow 4 = 90° Total angular variation = 270° 1 + 2 + 3 + 4 = 270° FP1239 Fig. 48 Maximum number of elbow degrees. STEP 2 Place fireplace into position. (Fig. 49) Measure the verti- cal height...
Page 25 - Apply high temperature sealant to collars or termina-; Below Grade Installations; coming through the wall.
25 CDVX Series Direct Vent Gas Fireplace 20012253 FP1242 Fig. 51 Through the wall. FP1243 Fig. 52 Apply high temperature sealant to collars or termina- tions. Below Grade Installations When it is not possible to meet the required vent ter-minal clearances of 12” (305 mm) above grade level a snorkel ...
Page 26 - Top Vent; Snorkel; This Gas Fireplace has been approved for:; through the roof; ceiling above and mark position.
26 CDVX Series Direct Vent Gas Fireplace 20012253 BG402a Top Vent Below grade installation 1/26/00 djt Firestop 7” Pipe 7TDVSNORK (Snorkel) 4” (102mm) Clearance Min. Window Well Gravel Drain BG402 Fig. 53 Below grade installation. Zero Clearance Sleeve (if required) *A minimum of 24” (610mm) ver- ti...
Page 27 - Typical offset application.; Typical ceiling/roof support; Typical Roof Support; Roof and ceiling supports.
27 CDVX Series Direct Vent Gas Fireplace 20012253 1 2 3 4 Max. 8' (2.4m) FP1245 through the roof 90 & 45 degree 12/02 1 + 2 + 3 + 4 = 270° FP1245 Fig. 56 Typical offset application. CFM100 Firestop-Vertical 09/20/00 11" 11" Attic Insulation Shield Joist Ceiling In-stallation Joist Upper ...
Page 28 - Vent Components; Elbow; Must order a 7TCDV90 elbow
28 CDVX Series Direct Vent Gas Fireplace 20012253 Venting Components 584G Venting Components Firestop spacer 2/25/99 djt 584H Venting components attic insulation shield 2/25/99 djt 584I vent components offset support 2/25/99 djt 584D Vent Components 90 degree elbow 2/25/99 djt 10/20/99 twist lock 58...
Page 29 - Care must be taken to avoid breakage of the glass.; Operating Instructions; Glass Information; the window frame assembly by pulling down on the; Glass Cleaning; Louvre removal; Remove top louvre; remove glass frame; Window frame assembly removal.; Tilt the window frame assembly out slightly at the
29 CDVX Series Direct Vent Gas Fireplace 20012253 Only glass approved by MHSC should be used on this fireplace. The top louvre panel is removed by lifting the panel vertically and pulling it away from the appliance. (Fig. 61) The lower access door is removed in the same manner. • The use of any non-...
Page 30 - Flame adjustment knob for SIT valve.; Ember Material and Lava Rock Placement; Under no circumstances should this lava
30 CDVX Series Direct Vent Gas Fireplace 20012253 ,'#$68LOGS Logs The 36CDVX logs are shipped in place. If a log is broken, refer to the replacement parts list for a replace-ment. Figure 63 shows where the logs are secured to the fireplace. RN/RP & EN/EP Models For units equipped with “HI/LO” va...
Page 31 - FOR YOUR SAFETY READ BEFORE LIGHTING; Follow the gas supplier’s instructions.; To Turn Off Gas to Fireplace; Lighting and Operating Instructions; Lighting Instructions; Euro SIT
31 CDVX Series Direct Vent Gas Fireplace 20012253 3. Open control access panel.4. Push in gas control knob slightly and turn clock- wise to “OFF”. Do not force. 5. Close control access panel. 1. STOP! Read the safety information above. 2. Turn off all electrical power to the fireplace.3. For MN/MP/T...
Page 32 - For Fireplaces equipped with SIT822 Gas Valve (EN or EP)
32 CDVX Series Direct Vent Gas Fireplace 20012253 Lighting and Operating Instructions For Fireplaces equipped with SIT822 Gas Valve (EN or EP) A. This fireplace is equipped with an ignition device which automatically lights the pilot. DO NOT try to light the pilot by hand. B. BEFORE OPERATING, smell...
Page 33 - SYMPTOM; NOTE; SIT NOVA 820 MILLIVOLT VALVE
33 CDVX Series Direct Vent Gas Fireplace 20012253 WARNING: BEFORE DOING ANY GAS CONTROL SERVICE WORK, REMOVE GLASS FRONT. SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION 1. Spark ignitor will not light A. Defective or misaligned Using a match, light pilot. If pilot lights, turn off electrode at pilot. pil...
Page 34 - Fuel Conversion Instructions; Remove lava rock and ember material.
34 CDVX Series Direct Vent Gas Fireplace 20012253 The conversion of this appliance from one gas to another must be carried out by an authorized service provider. 1. Disconnect power to the unit and shut off the gas sup- ply. 2. Remove window frame assembly.3. Remove the lava rock and ember material....
Page 35 - Nova SIT820 Gas Valve.; Using a Torx T20 or slotted screwdriver, remove and; gas conversion; Remove pilot orifice and replace with conversion; valve body where it can be easily seen.; Testing for Leaks; Correct pilot flame appearance.; Reassembly; reassemble fireplace.
35 CDVX Series Direct Vent Gas Fireplace 20012253 Fig. 74 Nova SIT820 Gas Valve. D E F FC108 SIT regulator conversion 10/03 OFF PIL OT O FC107 SIT820 valve conversion 10/03 A B C OFF PIL OT O FC107/108 Valve Regulator ConversionSIT 820 NOVA Gas Control Valve (Fig. 74) 1. Using a Torx T20 or slotted ...
Page 36 - Burner and Burner Compartment; Cleaning the Standing; If repair is necessary, it should; Maintenance
36 CDVX Series Direct Vent Gas Fireplace 20012253 Burner and Burner Compartment It is important to keep the burner and the burner compartment clean. At least once per year the logs and lava rock/ember material should be removed and the burner compartment vacuumed and wiped out. Remove and refit the ...
Page 37 - CDVX; b. Log Middle Assy
37 CDVX Series Direct Vent Gas Fireplace 20012253 MHSC reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products at any time, without notice. CDVX 16 14a,b 13 20 2 6a,b 7 10 11 12 15 17 21 22 23 3 8 19 1a 1b 18 12253CDVX parts2/07 26 25 Ref. ...
Page 38 - Clamp Frame Window; Fuel Conversion Kits
38 CDVX Series Direct Vent Gas Fireplace 20012253 CDVX (continued) 15. Flexible Gas Line w/ON/Off Shut-Off Valve 20002500 16. Fan Assy (FK12 Option) ZA1110 17. Electrical Cord (6 ft.) 51865 18. Door Assy 20010207 19. Frame Window 20010320 20. Clamp Frame Window 10000949 21. Top Louvre Assy 20010179 ...
Page 39 - Optional Accessories Available; Fan Kits; fan install; FK12 fan placement.; Wiring Instructions
39 CDVX Series Direct Vent Gas Fireplace 20012253 FK12 This auxiliary fan system increases the efficiency of the circulation of the heating air. The FK12 Fan Assembly is a fixed speed fan system and does not allow for variable speed control. Specifications 115 Volts / 60 Hz / 56 Watts. Maintenance T...
Page 43 - Lifetime Warranty; Technical Services; LIMITED LIFETIME WARRANTY
43 CDVX Series Direct Vent Gas Fireplace 20012253 Lifetime Warranty The following components are warranted for life to the original owner, subject to proof of purchase: Firebox, Combus-tion Chamber, Heat Exchanger, Grate and Stainless Steel Burners. Five Year Warranty The following components are wa...
Page 44 - Efficiency Ratings; Model; MHSC
Efficiency Ratings Model EnerGuide Ratings Steady State (%) D.O.E. Fireplace Efficiency (%) Fan-OFF Fan-ON (AFUE%) 36CDVXRRN 66.9 76 76.5 63 36CDVXRRP 66.9 77 78 63 36CDVXTRN 57 76 76.5 63 36CDVXTRP 57 77 78 63 MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www.mhsc.com
Monessen WR400
Manual
Monessen EYF24
Manual
Monessen LSTF36
Manual
Monessen 7408INT
Manual
Monessen CSDV40SLP
Manual
Monessen MCUF42D-R
Manual
Monessen Outdoor Gas Fireplace
Manual
Monessen HVFL18
Manual
Monessen BUF400
Manual
Monessen VFCS20DPV
Manual
Monessen DFS42PVC
Manual
Monessen SBV500
Manual
Monessen MCUF36D-R
Manual
Monessen CDVR33
Manual
Monessen BLDV400
Manual
Monessen BWBC500IA
Manual
Monessen GLX28
Manual
Monessen DFS36
Manual