16
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Installation Instructions
901140-00, 01/2021
Innovative Hearth Products
DRT63ST-B Power-Vent Direct-Vent Fireplace
Power Vent Components
Locate the fireplace as per the instructions in
this manual. Make the following modifica-
tions to add the components used with the
Power Vent Kits. This kit can only be used in
conjunction with “Direct-Vent” series electronic
fireplaces. This installation must conform with
local codes or, in the absence of local codes,
with the Natural Fuel Gas Code, ANSI Z223.1/
NFPA 54, or the Natural Gas and Propane Instal-
lation Code, CAN/CGA B149.1.
CAUTION: This Power Vent Kit cannot be
used with Millivolt appliances. Use kit only
with the Electronically controlled fireplaces
listed for its use as shown in this document.
Figure 16A - Flex Adaptor (87L00)
Figure 16B - Power Vent Kit Components
1
1
2
3
5
4
6
7
Item No.
Description
Qty.
1
Vacuum Hose
1
2
Termination Assembly
1
3
SV Termination Adaptor (SV4.5RCH)
1
4
Strain Relief - 3/8”
2
5
Firestop Assembly (Horizontal)
1
6
Hose Clamp - 11/32”
2
7
Snap Bushing
1
8
Ring Terminal - #10
2
9
Insulated 1/4” Male Terminal
4
8
9
Power vent kit H7920 contains the items below:
NOTE:
87L00 and F4502 are required if using flex vent and is not provided in kit.
Please see
Page 35
and
Figure 16A
):
Vent Restrictor
The adaptor/probe assembly for this appli-
ance has a pre-installed vent restrictor with a
1-3/4" hole in the center
(see
Figure 15
)
. This
pre-installed vent restrictor is
not
for use with
any venting configuration for this fireplace
model and must be replaced with one of the two
provided vent restrictors, as described below.
Vent Restrictor Size Guidelines
• For venting systems
30 ft in length or less
,
replace the factory installed vent restrictor
with the provided vent restrictor with a
1-5/8"
dia. hole
.
• For venting systems
greater than 30 ft in
length
, replace the factory installed vent
restrictor with the provided vent restrictor
with a
2-1/4" dia. hole
.
Vent Restrictor Installation Instructions
Install the appropriate vent restrictor (as
described above) into the adaptor/probe
assembly per the instructions in
Figure 15
.
Figure 15 - Vent Restrictor
Vent Restrictor Installation Instructions
1. Turn the adaptor/probe assembly upside-
down, as shown.
2. Remove the four screws securing the
vent restrictor in place. Lift out the vent
restrictor.
3. Install the appropriate vent restrictor,
using the four screws previously
removed. See “
Vent Restrictor Size
Guidelines
,” above.
Adaptor/Probe Assembly
(shown upside-down)
Vent Restrictor
< 30 ft. 1-5/8" Dia.
> 30 ft. 2-1/4" Dia.
