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Innovative Hearth Products
DRT35ST and DRT35PF Direct-Vent Gas Fireplaces
TABLE OF CONTENTS
Safety and your Fireplace ..................Page 2
Important Safety Information ............Page 4
Packaging .........................................Page 5
Introduction ......................................Page 5
General Information ..........................Page 5
Requirements for the
Commonwealth of Massachusetts .Page 7
Cold Climate Insulation .....................Page 8
Manufactured Home Requirements ..Page 8
Location ............................................Page 8
Vent Termination Clearances ............Page 9
Appliance and Vent Clearances .........Page 11
Detailed Installation Steps .................Page 12
Typical Installation Sequence ...........Page 13
Step 1. Framing .................................Page 13
Fireplace and Framing Specifications .Page 14
Step 2. Routing Gas Line ..................Page 16
Step 3. Appliance Vent Collar ............Page 16
Step 4. Install The Venting System ...Page 17
Vertical Termination Systems ............Page 18
Vent Section Length Chart ................Page 18
Vertical Vent Tables and Figures ........Page 21
Horizontal Termination System .........Page 23
Horizontal Vent Tables and Figures ...Page 25
Venting Using Flexible Vent Pipe .......Page 28
Step 5. Field Wiring .........................Page 29
Step 6. Optional Blower Kit Wiring ..Page 30
Step 7. Connecting Gas Line ...........Page 31
Step 9. Installing Logs ...................Page 33
Step 10. Remove/Install Glass Door .Page 35
Step 11. Burner Adjustments ............Page 35
Step 12. Hood Installation .................Page 36
Finishing Requirements ....................Page 36
Installation Accessories ....................Page 38
Gas Conversion Kits .................. Page 40
Operation/Care of Your Appliance .....Page 43
Gas Controls Access .........................Page 43
Variable Flame Adjustment ................Page 46
Maintenance ......................................Page 48
Burner Flame Appearance/Sooting ....Page 53
Burner Flame Adjustments ................Page 54
Electronic Appliance Checkout ..........Page 54
Wiring Diagrams ...............................Page 55
Accessory Components ....................Page 56
Maintenance Schedule ......................Page 57
Lighting Instructions - Electronic .....Page 58
Troubleshooting Guide - Electronic ..Page 60
Replacement Parts List .....................Page 61
Warranty ...........................................Page 63
Please read and understand these
instructions before beginning your
installation.
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 located
in the bottom compartment.
3 - one poly bag containing the literature
package which consists of Installation and
Operation manual, Hot Glass Safety Flyer,
and Safety-In-Operation Warning Labels,
8 (DRT35ST) and 4 (DRT35PF) nailing
flanges, on/off rocker switch and wire
harness; poly bag is located in the bottom
compartment.
4 - one vent restrictor to be applied as shown on
Page 14; restrictor is taped to the envelope.
5 - two hoods on see-through units and three
hoods on peninsula fireplaces.
6 - top standoffs taped to top of unit.
7 - front face assemblies with barriers.
NOTE:
• If the barrier becomes dam-
aged, the barrier shall be re-
placed with the manufacturer's
barrier for this appliance.
• For use with barrier(s) Part
No(s). J7424 (ST Models) and
J7424 and J7425 (PF Models).
INTRODUCTION
The Electronic appliances are designed to op-
erate on natural or propane gas. An electronic
intermittent pilot ignition system provides safe,
efficient operation. External electrical power is
required to operate these units.
These vented gas fireplace heaters are sealed
combustion, air-circulating gas fireplaces de-
signed for residential applications.
Approved Vent Components - These fireplaces
are designed, tested and listed for operation
and installation with the following vent com-
ponents only:
•
Secure Vent
Direct-Vent System Compo-
®
nents manufactured by IHP,
•
Secure Flex
Flexible Vent Components
®
manufactured by IHP and
•
Z-FLEX
Model GA Venting Systems listed
®
to UL1777 and ULCS635 manufactured by
Flexmaster Canada Limited.
Use only the correct size venting (4-1/2" inner
and 7-1/2" outer).
These approved vent system components are
labeled for identification. DO NOT use any
other manufacturer's vent components with
these appliances.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Installation and Operation Instructions
900300-00, 01/2019
GENERAL INFORMATION
WARNING
Young children should be care-
fully supervised when they are
in the same room as the appli-
ance. Toddlers, young children
and others may be susceptible
to accidental contact burns. A
physical barrier is recommended
if there are at risk individuals in
the house. To restrict access to
a fireplace or stove, install an
adjustable safety gate to keep
toddlers, young children and
other at risk individuals out of
the room and away from hot
surfaces.
AVERTISSEMENT
Les jeunes enfants devraient être
surveillés étroitement lorsqu'ils
se trouvent dans la même pièce
que l'appareil. Les tout petits,
les jeunes enfants ou les adultes
peuvent subir des brûlures s'ils
viennent en contact avec la sur-
face chaude. Il est recommandé
d'installer une barrière physique
si des personnes à risques habi-
tent la maison. Pour empêcher
l'accès à un foyer ou à un poêle,
installez une barrière de sécu-
rité; cette mesure empêchera les
tout petits, les jeunes enfants et
toute autre personne à risque
d'avoir accès à la pièce et aux
surfaces chaudes.
Children and adults should be alerted to the
hazards of high surface temperature and
should stay away to avoid burns or clothing
ignition.
Les enfants et les adultes devraient être infor-
més des dangers que posent les températures
de surface élevées et se tenir à distance afin
d'éviter des brûlures ou que leurs vêtements
ne s'enflamment.
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.
5
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