Enviro C34 User manual

1
INSTRUCTION MANUAL
This Cool Surface System has been tested for compliance to Standards:
ANSI Z21.88-2014 and CSA Z2.33-2014.
This Cool Surface System has been approved for use on the ENVIRO C34/44/60 Direct Vent
replaces only and must be installed at the time of replace installation.
The following instructions must be followed in conjunction with the replace installation
instructions to comply with the standards and allow safe operation of the installed replace.
Version Française: www.enviro.com/fr.html
4001609
Cool Surface System
SIDE VENT [50-3455]
PLEASE KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
C Series
50-3455

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General Information
Figure 1. Cool Surface System Side Vent - Parts Diagram
The purpose of this optional Cool Surface System, or CSS, is to naturally re-direct the convective heat
from the replace. Using this kit lowers the temperatures of the front wall for installations where a
TV, artwork etc. is desired directly above the replace. It can also be used if you are intending to use
combustible framing and combustible facing materials depending on conguration.
The Side Vented CSS is a modular system that can be installed in either a Horizontal or Vertical
orientation.
Note: You can install the Cool Surface System without the Combustible Facing Kit. Doing so requires a
non combustible facing material (see Owner’s Manual for replace installation instructions).
Note: Dual Convection Fan Kit (50-3212) may not be used in conjunction with CSS.
Prior to installation of the CSS make sure the desired location is large enough to comply with the
combustible clearances of both the CSS and the replace (see Owner’s Manual for replace installation
instructions). Refer to the Framing and ClearanCes section of this manual for the required installation
dimensions of the CSS in tis different congurations.
Please refer to Figure 1 to ensure that all CSS parts are accounted for and have not been damaged.
Item Description Item Description Item Description
1 Top Standoff 4 C34 Main Wall 7 C44 Extension
2 Main Body 5 C60 Extension 8 Bag of Screws
3Trimable Deector 6 Vent Collars

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8.00
8.00
7.67
13.64
6.17
10.75
0.88 2.63
7.47
11.74
0.50
4.68 6.07
12.18
14.92
12.24
1.39
Figure 2. Cool Surface System Side Vent- Overall Dimensions
36.00
36.00
26.00
9.95
4.75
4.75
4.75
0.50
0.50
0.92 4.75
2.00
2.48
0.49
Dimensions
Figure 3. Combustible Facing Kit - Overall Dimensions

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Framing & Clearances
QUALIFIED INSTALLERS ONLY
Figure 4. C-Series - CSS Front Framing & Rough Opening
Front Framing & rough opening:
Min. Height
51-3/8”
( 130cm)
C34 = 45” (114cm)
C44 = 55” (140cm)
C60 = 71” (180cm)
Min Framing and rough opening for C-Series. C44 Shown.

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Framing & Clearances
QUALIFIED INSTALLERS ONLY
15.00” (38cm)
11.50”
(29cm)
Min. Height
to Ceiling
14.50
Min. Height
66.00”
(168cm)
Min. to
Ceiling
5” (12.5cm)
Min. Height
from oor
69.5” (176.5cm)
39” (99 cm) Min.
Length 5” dia. ex vent
(not supplied)
Min. Vent
The CSS has been designed to allow for installations where a vertical run of vent is required without
having to jog the vent pipe around the CSS. The horizontal vent shield supplied with the replace is not
required (see Owner’s Manual) when vertically venting and the vent pipe can simply be run straight up
between the side vents of the CSS.
Shown below in Figure 5 are the minimum framing and clearances for the CSS with the side vents
installed horizontally and when the replace is installed with the minimum allowable vent length:
Figure 5. CSS Horizontal Vent - Min. Framing & Clearances
minimum ClearanCes - horizontal instalation - minimum vent:

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Framing & Clearances
QUALIFIED INSTALLERS ONLY
Min. Distance to
wall 5.00” (13cm)
Min. Ceiling
Height
18.75”
(48cm)
*15.75” (40cm)
11.5” (29cm)
Min. Dist
61.75”
(157cm)
*NOTE: 15.75” from the
header is required for min.
ceiling height. Rest unit on
lower standoff. There will be
a 3/4“ (2cm) gap on from
the top standoff to the
header in this confirguration.
Min Framing is 15” x 11.5”
3/4” (2cm)
Gap Shown
Min. Distance
to Ceiling
4.5” (11.5cm)
Min. Distance
to oor
64” (162.5cm)
minimum ClearanCes - vertiCal vent - minimum vent:
The CSS has been designed to allow for installations where a vertical run of vent is required without
having to jog the vent pipe around the CSS. The horizontal vent shield supplied with the replace is not
required (see Owner’s Manual) when vertically venting and the vent pipe can simply be run straight up
between the side vents of the CSS.
Shown below in Figure 6 are the minimum framing and clearances for the CSS with the vents installed
vertically and when the replace is installed with the minimum allowable vent length:
Figure 6. CSS Horizontal Vent - Min. Framing & Clearances
Min. Vent
39” (99 cm) Min.
Length 5” dia.
ex vent
(not supplied)

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Initial Installation
QUALIFIED INSTALLERS ONLY
revised mantel requirements:
Refer to Figure 7, 8 for a combustible mantel installation, measurement is from bottom of the unit to the
bottom of the mantel.
If you are planning on installing a TV above the replace refer to page 9 to see the options available.
Note: Minimum height of mantle if you intend on using a surround is 31”
1 2 3 4 5 6 7 8 9 10 11 12 13 14
MANTLE HEIGHT
MANTLE DEPTH
Minimum Mantle Clearances
8” MANTLE
4”MANTLE
35”
34”
33”
32”
31”
30”
29”
27”
28”
12” MANTLE
Figure 7: Minimum Mantel Height

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29 “
(74cm)
31 “
(79cm)
Min. Height
For Surround
33“
(84cm)
4” (102mm)
8” (203mm)
12” (305mm)
2-1/16”
(75cm)
Min. Height
to Ceiling
55-1/16”
(1399cm)
Initial Installation
QUALIFIED INSTALLERS ONLY
Figure 8. Mantle Instalation

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Installation
tv installation Considerations:
If you are planning to mount a TV above your replace some considerations must be made to ensure
it is protected from the heat.
During testing temperatures did not exceed 121°F (49°C) midway up the front wall (Figure 9 &
10). There is no guarantee that these temperatures will not harm the longevity of your TV. Make sure
to consult your TV manufacturer’s specications to nd the maximum allowable operating temperature.
Since every home and installation is unique, temperatures should be veried at the time of install
if possible. If desired, front wall temperatures can be lowered to 104°F (40°C) with the use of a
mantle (Figure 10). Refer to Owner’s Manual for full mantle clearances. A TV should not be installed if
temperatures exceed the manufacturers maximum allowable temperature.
Installation and service must be performed by a qualied installer,
service agency or the gas supplier.
29°F 41”
21°F 35”
21°F 29”
24°F 23”
17°F 17”
20°F 11”
30°F 5”
0”
Above
Ambient
Height from
Opening
4” Mantle
29” from oor.
Combustible
Facing Kit
1/2” Combustible Base
Material (Drywall)
Up to 1” Combustible
Material.
NOTE: You cannot install a Surround
with the mantle at its lowest position.
Install mantle at 31” for a Surround
Min.
2-1/2”
(6.4cm)
Min. 2” (5cm)
Gap
Combustible
Facing Kit
1/2” Combustible Base
Material (Drywall)
Up to 1” Combustible
Material
29°F 41”
29°F 35”
29°F 29”
27°F 23”
35°F 17”
38°F 11”
49°F 5”
0”
Above
Ambient
Height from
Opening
1-1/2” Air Gap behind the TV.
(Typically provided by a wall
mount)
Figure 9. CSS - TV Clearances Figure 10. CSS - TV Clearances
TV must be 5” min from
discharge if no mantle

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Installation
QUALIFIED INSTALLERS ONLY
duCt Collars:
Prior to replace installation, the two supplied duct collars
must be attached to the top of the replace as shown in
the steps below:
Step 1: Using a T20 screwdriver, remove the inner and
outer cover plates from the replace as shown (Figure
11). Each cover plate has four (4) mounting screws.
Both sets of cover plates are no longer required and can
be recycled. Retain eight (8) of the removed mounting
screws to secure the duct collars.
Inner Cover
Plate (x2)
Outer Cover
Plate (x2)
Figure 11. Cover Plate Removal
Step 2: Attach the supplied duct collars to the top
of the cabinet as shown (Figure 12). Secure the
collars by re-using the eight (8) screws saved in the
previous step.
Duct Collars
Figure 12. Duct Collars Installed
Figure 13. Trimmable Deector trim notches
Note: You can install the Cool Surface System
without the Combustible Facing Kit. Doing so
requires a non combustible facing material
(see Owner’s Manual for replace installation
instructions).
Step 1: Prior to installation of the CSS Combustible
Facing Kit determine your unit. Then retreive the
trimable defelctor. The deector is trimable to t the
unit being installed. It comes in the length required
to t a C60 and must be trimmed to t either the
C44 or the C34. Notches on the top and bottom of
the trimable deector show where to cut it. The rst
notch on the far left will size it for a C44 and the
second notch will size it for a C34.
Combustible FaCing Kit (optional):

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Combustible FaCing Kit (optional):
Step 2: All the Units use the C34 panel as a base. If installing a C44, use both the C34 and C44
panels. If installing a C60, use both the C34 and C60 panels. Once you have your required panels
locate the anges in the gure 14 below. Bend these anges inwards 90deg to match the gure 14
below.
Installation
QUALIFIED INSTALLERS ONLY
B
B
Step 4: All the middle anges must be bent 90deg inwards towards the unit as shown below.
Figure 15. Rear Panel hand bent anges
Figure 14. Rear Panel hand bent anges
Step 3: Verify that all the hand bends shown above are bend inwards 90deg as shown.

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Combustible FaCing Kit (optional):
Step 4: Make sure all your hand bend anges are bent prior to assembly and that you have the
correct length deector before instalation to the unit.
Step 5: If installing a C44 or C60, attach your extension piece to the C34 main panel.
Step 6: Attach your deector to your panel conguration as shown below.
Step 7: Remove the top cabinet T20 screws on the left and right side so that you can reuse them to
fasten the Combustible Facing Kit asembly to the unit.
Step 8: Use the provided self tapping screws to fasten the assembly via the remaining pilot holes.
Installation
QUALIFIED INSTALLERS ONLY
Figure 16. Combustible Facing Kit C34
Figure 17. Combustible Facing Kit C44 Left, C60 Right

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1/2” Drywall
Figure 18. CSS - 1/2” Base Layer
Installation
QUALIFIED INSTALLERS ONLY
Before installing your chosen facing material, a 1/2” base layer must be placed over the framing up to
the Combustible Facing Kit assembly as shown below. Up to a 1” thick material may be placed on top
of the base layer and the combustible facing kit assembly afterwards.
Combustible FaCing Kit (optional):

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Installation
QUALIFIED INSTALLERS ONLY
side vent:
Prior to installing your Cool Surface System Side Vents you will need to set up your Side Vents in the
conguration required for your instalation. A T20 screwdriver is required for assembly and dissaembly.
Step 1: Pop off your front bezel from the side vent. Its retained by clips on both sides.
Step 2: Remove the the grill by removing the 4 T20 screws.
Step 3: Remove the duct collar register.
Step 4: Attach your 5” ex vent to the duct collar register using self tapping screws.
Step 5: Adjust your side vent to your facing
material depth. The side vent trim surround
can be adjusted to account for 1/2”, 3/4” or 1”
material thickness.
Figure 19. CSS Side Vent Set-Up
Figure 20. CSS Side Vent Depth Adjustment
1/2” Facing
Material
1” Facing
Material

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Installation
QUALIFIED INSTALLERS ONLY
Step 6: Fasten the top standoff to the Side Vent body using your T20 screwdriver and T20 screws
provided.
Step 7: Place your block off plates on the sides of the side vent body not in use.
NOTE: The Cool Surface Systme will not fucntion properly if the block of plates are not installed.
side vent:
Figure 21. CSS Side Vent Assembly
Figure 22. CSS Side Vent block off plate adjustment

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Installation
QUALIFIED INSTALLERS ONLY
Step 8: Connect the required lengths of 5” dia. stainless steel or aluminium ex vent (not supplied)
to the duct collar registers. Secure the venting to the collars using either sheet metal screws or band
clamps. Both side vents of the CSS must be connected to the replace via 5” dia. ex vent.
Feed the ex vent through the CSS Side vent body. This will facilitate instalation.
side vent:
Figure 23. Flex Vent Connection
Step 9: Push the duct collar register into the side vent body while pulling the ex ent through the
other side. Fasten the duct collar register to the inside of CSS Side by the screws on both sides.
Step 10: Insert the assembled CSS Side Vents into the framed rough opening by rotating them slightly
to allow the side vent bodies to pass through.
Step 11: Conrm the CSS is centered within the rough opening and secure in place using screws or
nails through the four (6) holes along the edges the standoffs.
Step 12: Connect the 5” dia. stainless steel or aluminium ex vent (not supplied) to the unit using
either sheet metal screws or band clamps. Both side vents of the CSS must be connected to the
replace via 5” dia. ex vent.Secure the ex venting where necessary to maintain standard venting
clearances:
Vertical Pipe to
the Side Walls Horizontal Pipe to the Sides & Bottom Above an Elbow Above the Unit
Above an Elbow
Not Above the Unit
Above Horizontal
Vent Pipe
1”
(25.4 mm) 1” (25.4 mm) 3” (76.2 mm) 3” (76.2 mm) 2” (51 mm)
Step 13: Replace the grill and bezel in reverse order of their removal. The grill and bezel can be
painted to match the colour of the wall if desired (must be hi-temperature rated).
Note: Flex venting must be non-insulated and listed to UL 1777 and ULC S635 standards

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Replacement Parts
Item Description Part Number
1 Side Vent Duct Collar 50-3483
2 Side Vent Grill 50-3484
3 Side Vent Front Bezel 50-3485
4Vent Collars (Set of 2) 50-3309
5CSS Side Vent Instruction Manual 50-3482
1
2
3
4
5

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Notes

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Learn more about our products at
Detailed Product Lineup
Model Photo Galleries
Downloadable Manual PDF’s
Unit Comparison Charts
Youtube Burn Example Videos
Online Brochures
Dealer Locator Tool

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MANUFACTURED BY:
SHERWOOD INDUSTRIES LTD.
6782 OLDFIELD RD. SAANICHTON, BC, CANADA V8M 2A3
www.enviro.com
October 10, 2017
C-15196