Lennox Hearth B-MNC0353VDE - Manual (Page 2)

2 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 1
TABLE OF CONTENTS
Packaging ........................................ page 2
Introduction ..................................... page 2
General Information ......................... page 2
Location .......................................... page 4
Appliance and Vent Clearances ....... page 5
Vent Termination Clearances ........... page 5
Typical Installation Sequence .......... page 6
Detailed Installation Steps ............... page 6
Step 1. Framing ............................. page 6
Step 2. Routing Gas Line ............... page 6
Fireplace Specifications ................... page 9
Step 3. Install the Vent System ...... page 9
Requirements for Commonwealth
of Massachusetts .......................... page 10
Vertical Termination Systems .......... page 11
Vent Section Length Chart ............... page 11
Vertical Vent Tables and Figures ...... page 14
Horizontal Termination System ........ page 16
Horizontal Vent Tables and Figures . page 18
Venting Using Flexible Vent Pipe ..... page 21
Step 4. Field Wiring ....................... page 22
Step 5. Optional Blower Kit Wiring page 23
Step 6. Connecting Gas Line .......... page 23
Step 7. Installing Logs ................... page 24
Step 8. Checking Unit Operation ..... page 24
Step 9. Installing Glass Door ......... page 24
Step 10. Burner Adjustments ........... page 25
Step 11. Hood Installation ............... page 25
Finishing Requirements ................... page 25
Cold Climate Insulation .................... page 26
Installation Accessories ................... page 26
Gas Conversion Kits .................. page 28
TYPICAL INSTALLATION
INTRODUCTION
These fireplaces are designed, tested and listed
for operation and installation with, and only with,
Secure Vent™ Direct Vent System Components,
Secure Flex™ Flexible Vent Components manu-
factured by Security Chimneys International and
Z-Flex™ Model GA Venting Systems, listed to
UL1777 and ULCS635 manufactured by Flex-
master Canada Limited. These approved vent
system components are labeled for identifica-
tion. DO NOT use any other manufacturer's vent
components with these appliances.
Millivolt appliances are designed to operate
on natural or propane gas. A millivolt gas
control valve with piezo ignition system pro-
vides safe, efficient operation. External electri-
cal power is required to operate the optional
blower if installed in these units.
PACKAGING
The assembled vented gas fireplace heater is
packaged with:
1 - the logs are packaged in a carton located
within the firebox.
2 - one plastic bag of glowing embers is lo-
cated in the bottom compartment.
3 - one envelope containing the literature
package which consists of the homeowner's
manual, installation instructions, log set
supplement and warranty; envelope is lo-
cated in the bottom compartment.
4 - one vent restrictor to be applied as shown
on page 10 ; restrictor is taped to the
envelope.
5 - one hood taped to the front of the standoff
bracket at the top of the unit.
6 - three-piece ceramic ember panel.
The appliance, when installed, must be elec-
trically grounded in accordance with local
codes or, in the absence of local codes, with
the
National Electrical Code, ANSI/NFPA 70,
or the Canadian Electrical Code, CSA C22.1.
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATION AND LISTINGS OF THIS UNIT.
GENERAL INFORMATION
Note: Installation and repair should be per-
formed by a qualified service person. The appli-
ance should be inspected annually by a qualified
professional service technician. More frequent
inspections and cleanings may be required due
to excessive lint from carpeting, bedding mate-
rial, etc. It is imperative that the control compart-
ment, burners and circulating air passage ways
of the appliance be kept clean. S'assurer que le
brùleur et le compartiment des commandes sont
propres. Voir les instructions d'installation et
d'utilisation qui accompagnent l'appareil.
Provide adequate clearances around air open-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
These appliances are designed to operate on
natural or propane gas only.
This installation manual will help you obtain a
safe, efficient, dependable installation for your
appliance and vent system.
Please read and understand these
instructions before beginning your
installation.
Electronic appliances are designed to operate
on natural or propane gas. An electronic inter-
mittent pilot ignition system provides safe,
efficient operation. External electrical power is
required to operate these units.
These appliances comply with National Safety
Standards and are tested and listed by Omni-
Test Laboratories (Report No. 116-F-05-5) to
ANSI Z21.88 (in Canada, CSA-2.33), and CAN/
CGA-2.17-M91 in both USA and Canada, as
vented gas fireplace heaters.
Both millivolt and electronic versions of
these appliances are listed by Omni-Test
Laboratories for installation in bedrooms
and mobile homes.
The Installation must conform to local codes
or, in the absence of local codes, with the
National Fuel Gas Code, ANSI Z223.1/NFPA
54, or the Natural Gas and Propane Installa-
tion Code, CSA B149.1.