Instruction/ maintenance manual of the product CFX24 Monessen Hearth
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V ent-free Fireplace Systems Models: CFX24, CFX32 Natural Gas or LP , Millivolt Installation and Operating Instructions W ARNINGS If the information in this manual is not followed exactly , a fire or explosion may result causing property damage, personal injury or loss of life.
2 CFX V ent F ree F ireplace S y stem 20301726 CONTENTS Important Safety Information ..................................... 3 Product Features and Specifications ........................ 5 Gas Pressures .................................................
3 CFX V ent F ree F ireplace S y stem 20301726 1 1. Correct installation of the ceramic fiber logs, proper location of the heater , and annual cleaning are neces- sary to avoid potential problems with sooting. Sooting, resulting from improper installation or operation, can settle on surfaces outside the fireplace.
4 CFX V ent F ree F ireplace S y stem 20301726 IMPORT ANT SAFETY INFORMA TION 18. Dur ing man ufac tu rin g, fab ric at ing an d shi pp ing , v ari ous components of this appliance are treated with certain oils, films or bonding agents.
5 CFX V e nt F ree F ireplace S ys te m 20301726 PRODUCT FEA TURES & SPECIFICA TIONS OPERA TION This unvented gas heater requires no outside venting and burns cleanly with high heating efficiency . This zero-clearance unvented gas heater can be installed against any wall that is accessible to a gas line.
6 CFX V e nt F ree F ireplace S ys te m 20301726 FIREPLACE & SYSTEM DIMENSIONS Figure 2 - Firebox Dimensions E D C A B F G H I 1726 CFX Barrington dims H Ref.
7 CFX V e nt F ree F ireplace S ys te m 20301726 GETTING ST ARTED Make sure you have received all parts: Check your packing list to verify that all listed parts have been received.
8 CFX V e nt F ree F ireplace S ys te m 20301726 ADEQUA TE COMBUSTION AND VENTILA TION AIR This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air .
9 CFX V e nt F ree F ireplace S ys te m 20301726 FP2110a fireplace locations 12/08 Carefully select the best location for installation of your unvented fireplace. The following factors should be taken into consideration. • Clearance to side wall, ceiling, woodwork and window or other combustibles.
10 CFX V e nt F ree F ireplace S ys te m 20301726 9” Min. 9” Min. 42” Min. FP21 1 1a min clearances CLEARANCES and HEIGHT REQUIREMENTS Ensure that minimum clearances shown in Figure 5 are maintained. Left and right clearances are deter - mined when facing the front of the firebox.
1 1 CFX V e nt F ree F ireplace S ys te m 20301726 FP2109a remov e screen REMOVE SCREEN Figure 6 1. Remove bottom access door . 2. Remove fireplace screen frame panel by pushing screen frame panel up and out. GENERAL INST ALLA TION INFORMA TION Figure 6 - Remove Fireplace Screen Frame Panel NOTE: Fireplace screen must be removed to access log box.
12 CFX V e nt F ree F ireplace S ys te m 20301726 INST ALL MANTEL 1. Place base near final position. Make sure you have access to all four (4) sides. 2. Place sides in the approximate location on base. Align back edge of side with back of base. Secure joining block #1 to bottom of side using two (2) 1 Zv ” screws.
13 CFX V e nt F ree F ireplace S ys te m 20301726 FIREPLACE INST ALLA TION FIREBOX TO MANTEL INST ALLA TION 1. Slide fireplace into mantel. 2. Use the two (2) 'L' brackets provided to secure the fireplace to the mantel.
14 CFX V e nt F ree F ireplace S ys te m 20301726 FP2108a install firebrick GENERAL INST ALLA TION INFORMA TION INST ALL OPTIONAL FIREBRICK P ANELS 1. Remove optional firebrick panels from packaging.
15 CFX V e nt F ree F ireplace S ys te m 20301726 CONNECT THE GAS FP1977 external regulator Figure 13 - External Regulator with V ent Pointing Down (Propane/LP Only) CHECK GAS TYPE Use proper gas type for the fireplace you are installing. If you have conflicting gas type, do not install fireplace.
16 CFX V e nt F ree F ireplace S ys te m 20301726 CONNECT THE GAS 3" Minimum FP1978 gas connection A listed manual shutoff valve must be installed upstream of the appliance. Union tee and plugged 1/8" NPT pressure tapping point should be installed upstream of the appliance.
17 CFX V e nt F ree F ireplace S ys te m 20301726 CHECK GAS PRESSURE 1. Check gas type. The gas supply must be the same as sta ted on th e app lia nce ’s ra tin g dec al. If the gas sup ply is diffe rent from the fire place, ST OP! Do not instal l the appliance.
18 CFX V e nt F ree F ireplace S ys te m 20301726 ELECTRICAL WIRING (MILLI-VOL T) Th e mi ll i- vol t val ve is a se lf- po we red co mb ina ti on ga s co nt rol that DOES NOT REQUIRE 1 10V AC TO OPERA TE. CONNECTING OPTIONAL W ALL SWITCH OR THERMOST A T 1.
19 CFX V e nt F ree F ireplace S ys te m 20301726 ELECTRICAL WIRING (MILLI-VOL T) CONNECT REMOTE RECEIVER TH ESE IN ST RUC TI ON S SUP ERS ED E THE SE CTI ON EN TIT LE D “HE ART H MOU NT ” IN TH E MILLI-VOL T HAND-HELD REMOTE INSTRUCTIONS SUPPLIED WITH THE REMOTE.
20 CFX V e nt F ree F ireplace S ys te m 20301726 LOG PLACEMENT Before you begin — This unit is supplied with a set of three ceramic fiber logs. Do not handle these logs with your bare hands. Always wear gloves to prevent skin irritation from ceramic fibers.
21 CFX V e nt F ree F ireplace S ys te m 20301726 LOG & ROCKWOOL PLACEMENT PROPER INST ALLA TION SEQUENCE (CFX32) Figure 19 1. Install front right log (#1) on two pins on right side of burner . 2. Install left front log (#2) on two pins on left side of burner .
22 CFX V e nt F ree F ireplace S ys te m 20301726 L G592 CFX32 log flame L G591 CFX24 log flame Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed. In addition, periodically check the flames visually during operation.
23 CFX V e nt F ree F ireplace S ys te m 20301726 OPERA TING INSTRUCTIONS A void any drafts that alter burner flame patterns. Do not allow fans to blow directly into the fireplace. Do not place a blower inside the burn area of the firebox. Ceiling fans may create drafts that alter flame patterns.
24 CFX V e nt F ree F ireplace S ys te m 20301726 FP2750 CFX controls CFX Controls FOR YOUR SAFETY READ BEFORE LIGHTING A. This appliance is equipped with a piezo ignition device which automatically lights the pilot. If piezo is not working properly refer to Match Lighting Instructions, Page 26.
25 CFX V e nt F ree F ireplace S ys te m 20301726 FP2118 piezo OPERA TING INSTRUCTIONS MILLI-VOL T CONTROL LIGHTING INSTRUCTIONS 1. ST OP! Read the safety information label. 2. Make sure the manual shutof f valve is fully open. 3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot.
26 CFX V e nt F ree F ireplace S ys te m 20301726 OPERA TING INSTRUCTIONS CLEANING AND SERVICING Ann ual insp ectio n and cl ean ing by your deale r or qua lif ied servi ce techn ician is reco mme nde d to prevent malfunction and/or sooting. Remove fireplace screen.
27 CFX V e nt F ree F ireplace S ys te m 20301726 CAUTION BLOWER and OTHER OPTIONAL EQUIPMENT OPTIONAL EQUIPMENT FORCED AIR KIT If you are installing the forced air kit (Models BLO24-T or BLOT), see the installation instructions provided with the kit for electrical wiring requirements or the blower installation section.
28 CFX V e nt F ree F ireplace S ys te m 20301726 Note: All troubleshooting items are listed in order of operation. TROUBLESHOOTING OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed, there is no spark at ODS/pilot. 1. Ignitor electrode positioned wrong.
29 CFX V e nt F ree F ireplace S ys te m 20301726 TROUBLESHOOTING OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights, but flame goes out when control knob is released. 1. Control knob not fully pressed in. 1. Press in control knob fully . 2. Control knob not pressed in long enough.
30 CFX V e nt F ree F ireplace S ys te m 20301726 REPLACEMENT P ARTS Item Description Qty . CFX24 CFX32 1. Assy Door , Painted 1 88D0032K 88D0107K 2. Assy Screen Frame, Painted 1 88D0034K 88D0109K 1 2.
31 CFX V e nt F ree F ireplace S ys te m 20301726 REPLACEMENT P ARTS 1 3 2 10 8 7 1 1 14 13 12 5 6 88001 1 CFX burner parts 9 4 13 12 14 15 16 Fai lure to posi tion the parts in acc orda nce with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury .
32 CFX V e nt F ree F ireplace S ys te m 20301726 REPLACMENT P ARTS REPLACEMENT P ARTS ARE A V AILABLE THROUGH YOUR RET AILER. CFX24 CFX32 Item Description Qty . Natural Propane Natural Propane 1. Burner/Grate Assembly 1 33D4043 33D4043 33D5050 33D5050 2.
33 CFX V e nt F ree F ireplace S ys te m 20301726.
34 CFX V e nt F ree F ireplace S ys te m 20301726.
35 CFX V e nt F ree F ireplace S ys te m 20301726 LIMITED LIFETIME W ARRANTY POLICY LIFETIME W ARRANTY The following components are warranted for life to the original owner , subject to proof of pur- chase: Firebox, Combustion Chamber , Heat Exchanger , Grate and Stainless Steel Burners.
MHSC 149 Cleveland Drive • Paris, Kentucky 40361 www .mhsc.com.
An important point after buying a device Monessen Hearth CFX24 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Monessen Hearth CFX24 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Monessen Hearth CFX24 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Monessen Hearth CFX24 you will learn all the available features of the product, as well as information on its operation. The information that you get Monessen Hearth CFX24 will certainly help you make a decision on the purchase.
If you already are a holder of Monessen Hearth CFX24, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Monessen Hearth CFX24.
However, one of the most important roles played by the user manual is to help in solving problems with Monessen Hearth CFX24. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Monessen Hearth CFX24 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
