Vermont Castings Radiance RADVTSCBM, Radiance RADVTSCBD, Radiance RADVTCBSB, Radiance RADVTBSSB, Radiance RADVTBDSB Installation And Operating Instructions Manual

RADVT Series Radiance® Direct Vent Gas Heater

S

Installation and Operating Instructions

Models: RADVTSCCB, RADVTSCBS, RADVTSCBD, RADVTSCBM,

RADVTCBSB, RADVTBSSB, RADVTBDSB, RADVTBMSB

WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly

could result in serious injury, death or
property damage.

• Do not store or use gasoline or other

ammable vapors and liquids in the

vicinity of this or any other appliance.

• WHAT TO DO IF YOU SMELL GAS
– Do not try to light any appliance.

– Do not touch any electrical switch; do

not use any phone in your building.
– Leave the building immediately.
– Immediately call your gas supplier from

a neighbor's phone. Follow the gas

supplier's instructions.

– If you cannot reach your gas supplier,

call the re department.

• Installation and service must be performed

by a qualied installer, service agency or

the gas supplier.

WARNING: Improper installation, adjustment,

alteration, service or maintenance can cause

injury or property damage. Refer to this manual.
For assistance or additional information consult
a qualified installer, service agency or the

gas supplier.

This appliance may be installed in an aftermarket,*
permanently located, manufactured home (USA
only) or mobile home, where not prohibited by
local codes.

This appliance is for use only with the type of gas

indicated on the rating plate. This appliance is
not convertible for use with other gases, unless
a certied kit is used.

* Aftermarket: Completion of sale, not for purpose of resale, from

the manufacturer.

CERTIFIED

AFETY BARRIER

DANGER

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of burns from

the hot viewing glass is provided with this

appliance and shall be installed.

INSTALLER: Leave this manual with the appliance.

CONSUMER: Retain this manual for

future reference.

20306759 0416 Rev. 5

CONTENTS

Radiance® Direct Vent Gas Heater

PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING APPLIANCE.

Thank you and congratulations on your purchase of a Vermont Castings stove. IMPORTANT: Read all instructions and

warnings carefully before starting installation. Failure to follow these instructions may result in a possible re hazard

and will void the warranty.

Table of Contents

Important safety information ....................................... 3

Massachusetts Residents Only ......................................... 4

Pre-installation.............................................................. 5

Stove Dimensions ............................................................. 5

Installation Requirements .................................................. 6

Clearance Requirements................................................... 6

Parallel Installation ............................................................ 7

Corner Installation ............................................................. 7

Wall and Ceiling Clearances ............................................. 7

Hearth Requirements ....................................................... 7

Gas Specications............................................................. 8

Gas Inlet and Manifold Pressures ..................................... 8

High Elevations ................................................................. 8

Horizontal Termination ...................................................... 8

Vertical Termination ........................................................... 9

Restrictor Plate Adjustment

for Extended Pipe Runs .................................................... 9

Vent Termination Clearances .......................................... 10

General Venting Information - Termination Location ........11

Termination clearances. .................................................. 12

Assembly and installation ......................................... 13

Venting Requirements and Options................................. 13

Assembling the Stove ..................................................... 14

Install the Optional Fan - RADVT Model (Millivolt only) �� 15

Venting System Assembly ............................................... 16

Before You Start .............................................................. 16

Install the Vent Adapter Pipe ........................................... 17

Assemble Slip Sections ................................................... 18

Secure the Vent Sections ................................................ 18

Disassemble Vent Sections ............................................. 19

Horizontal Termination Cap ............................................. 19

Divert Roof Run-off .......................................................... 20

Vertical Side Wall Installation .......................................... 20

Vent Termination Below Grade ........................................ 21

Vertical Through-The-Roof Application/Installation ......... 22

Install Log Set.................................................................. 24

Install ON/OFF Switch - RADVT Model (Millivolt only) .... 26

Thermostat Connection (optional) ................................... 26

Signature Command® System (SC) ............................... 26

Junction Box Wiring......................................................... 27

Command Center Wall Installation .................................. 27

Wall Switch Installation ................................................... 27

Connect the Gas Supply Line.......................................... 28

Burner Information........................................................... 28

Signature Command Wiring Diagram.............................. 29

Install the Safety Barrier .................................................. 30

Install the Mesh and Grill ................................................. 30

Operating instructions ............................................... 31

Pilot and Burner Inspection ............................................. 31

Flame & Temperature Adjustment ................................... 31

Flame Characteristics...................................................... 31

Lighting and Operating Instructions................................. 32

Troubleshooting ............................................................... 33

Read before lighting ........................................................ 34

Signature command operating instructions ............ 36

Features .......................................................................... 36

Battery installation ........................................................... 36

System conguration/setup ............................................. 36

Operating instructions ............................................... 38

Turning on the stove ........................................................ 38

Command Center Operations ......................................... 38

Initialization and Setting up ............................................. 39

Safety Features ............................................................... 43

Troubleshooting ......................................................... 44

Fuel conversion .......................................................... 46

Cleaning and maintenance ........................................ 51

Annual System Inspection ............................................... 51

Logset and Burner / Cleaning and Inspection ................. 51

Care of Cast Iron ............................................................. 51

Cleaning the Glass .......................................................... 51

Gasket Replacement ....................................................... 52

Inspect the Vent System Annually ................................... 52

Check the Gas Flame Regularly ..................................... 52

Glass Replacement ......................................................... 52

Wiring diagrams ......................................................... 53

Replacement parts ..................................................... 55

Optional accessories ................................................. 58

Limited lifetime warranty .......................................... 59

22 20306759

Radiance® Direct Vent Gas Heater

IMPORTANT SAFETY INFORMATION

The Radiance Direct Vent Room Heater, Model Nos. RAD­VTCBSB, RADVTBSSB, RADVTBDSB, RADVTBMSB, RAD­VTSCCB, RADVTSCBS, RADVTSCBD, RADVTSCBM, is a
vented gas appliance listed to the ANSI Standard Z21.88-2014
and CSA 2.33-2014 for Vented Room Heaters, and CSA 2.17­M91, Gas-Fired Appliances For Use at High Altitudes.

The installation of the Radiance Direct Vent Room Heater must
conform with local codes, or in the absence of local codes, with
National Fuel Gas Code, ANSI Z223.1/NFPA 54 — latest edition
and CSA B-149.1 Installation Code. (EXCEPTION: Do not
derate this appliance for altitude. Maintain the manifold pressure
at 3.5 inches w.c. for Natural Gas and 10 inches w.c. for LP gas
at maximum input.)

This appliance is only for use with the type of gas indicated on the
rating plate. This appliance is not convertible for use with other

gases unless a certied kit is used.

Installation and replacement of gas piping, gas utilization
equipment or accessories, and repair and servicing of equip­ment shall be performed only by a qualied agency, prefer­ably NFI or WETT (Canada) certied. The term “qualied
agency" means any individual, rm, corporation, or company
that either in person or through a representative is engaged
in and is responsible for (a) installation or replacement of gas
piping, or (b), the connection, installation, repair, or servic­ing of equipment, who is experienced in such work, familiar
with all precautions required, and has complied with all the
requirements of the authority having jurisdiction.

The Radiance Direct Vent Room Heater should be inspected
before use and at least annually by a qualied service agency.
It is imperative that control compartments, burners, and
circulating air passageways of the appliance be kept clean.

The Radiance Direct Vent Room Heater and its individual shut-off
valve must be disconnected from the gas supply piping during
any pressure testing of that system at test pressures in excess
of 1/2 psig (3.5 kPa).

The Radiance Direct Vent Room Heater must be isolated from the
gas supply piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply piping system
at test pressures equal to or less than 1/2 psig.

An accessible tap is located above the pilot/On-Off knob for
checking the inlet pressure.

‘Direct Vent’ describes a sealed combustion system in which
incoming outside air for combustion and outgoing exhaust enter
and exit through two separate concentric passages within the
same sealed vent system. The system does not use room air
to support combustion. The Direct Vent system permits the gas
appliance to be vented directly to the outside atmosphere through
the side of the house or vertically through the roof. Conventional
venting systems (Natural Vent) take air from the room for com­bustion and vent the exhaust vertically through the roof to the
atmosphere.

This appliance is approved for bedroom installations in the U.S.
and Canada.

This appliance may be installed in an aftermarket* manufactured
(mobile) home, where not prohibited by state or local codes.

WARNING: Operation of this heater when not connected to a
properly installed and maintained venting system can result
in carbon monoxide (CO) poisoning and possible death.

The Radiance Direct Vent Room Heater, when installed, must
be electrically grounded in accordance with local codes or, in the
absence of local codes, with the National Electrical Code ANSI/
NFPA 70, (latest edition), or of the current Canadian Electrical
Code C22.1.

Due to high temperatures this appliance should be located
out of trafc and away from furniture and draperies.

WARNING: This appliance is hot while in operation. Keep

children, clothing, and furniture away. Contact may cause
burns or ignition of combustible materials.

Children and adults should be alerted to the hazards of high
surface temperatures and should stay away to avoid burns

or clothing ignition.

Young children should be carefully supervised when they
are in the same room as the appliance. 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 stove
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.

Clothing or other ammable materials should not be placed

on or near the appliance.

Any safety screen, glass or guard removed for servicing an
appliance must be replaced prior to operating the appliance.

The appliance area must be kept clear and free from com­bustible materials, gasoline, and other ammable vapors
and liquids.

The ow of combustion and ventilation air must not be
obstructed. The installation must include adequate acces­sibility and clearance for servicing and proper operation.

WARNING: Do not operate the Room Heater with the glass

panel removed, cracked or broken. Replacement of the panel
should be done by a licensed or qualied service person.

Do not use this appliance if any part has been under water.
Immediately call a qualied service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.

Do not burn wood, trash or any other material for which this
appliance was not designed. This appliance is designed to
burn either natural gas or propane only.

This gas appliance must not be connected to a chimney ue
serving a separate solid-fuel burning appliance.

CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation.

Verify proper operation after servicing.

Aftermarket: Completion of sale, nor for purpose of resale,

*

from the manufacturer�

20306759

3

IMPORTANT SAFETY INFORMATION

Radiance® Direct Vent Gas Heater

REQUIREMENTS FOR THE
COMMONWEALTH OF MASSACHUSETTS

All gas tting and installation of this heater shall only be
done by a licensed gas tter or licensed plumber.

For all side wall horizontally vented gas fueled equipment

installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those
owned or operated by the Commonwealth and where
the side wall exhaust vent termination is less than seven

(7) feet above nished grade in the area of the venting,

including but not limited to decks and porches, the following

requirements shall be satised:

Installation of Carbon Monoxide Detectors

At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gas tter

shall observe that a hard wired carbon monoxide detec­tor with an alarm is installed on each additional level of
the dwelling, building or structure served by the side wall

horizontal vented gas fueled equipment. It shall be the

responsibility of the property owner to secure the services

of qualied licensed professionals for the installation of

hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fueled

equipment is installed in a crawl space or an attic, the hard
wired carbon monoxide detector with alarm and battery

back-up may be installed on the next adjacent oor level.

In the event that the requirements of this subdivision can
not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply with
the above requirements; provided, however, that during
said thirty (30) day period, a battery operated carbon mon­oxide detector with an alarm shall be installed.

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and

ANSI/UL 2034 listed and IAS certied.

Signage

A metal or plastic identication plate shall be per­manently mounted to the exterior of the building at a
minimum height of eight (8) feet above grade directly in
line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The
sign shall read, in print size no less than one-half (1/2)
inch in size, “GAS VENT DIRECTLY BELOW, KEEP
CLEAR OF ALL OBSTRUCTIONS".

Inspection

The state or local gas inspector of the side wall horizontally

vented gas fueled equipment shall not approve the installa­tion unless, upon inspection, the inspector observes carbon
monoxide detectors and signage installed in accordance
with the provisions of 248 CMR 5.08(2)(a)1 through 4.

Exemptions

The following equipment is exempt from 248 CMR 5.08(2)
(a)1 through 4:

• The equipment listed in Chapter 10 entitled “Equipment
Not Required To Be Vented" in the most current edition
of NFPA 54 as adopted by the Board; and

• Product Approved side wall horizontally vented gas fu­eled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or
in part for residential purposes.

MANUFACTURER REQUIREMENTS

Gas Equipment Venting System Provided

When the manufacturer of Product Approved side wall hor-

izontally vented gas equipment provides a venting system

design or venting system components with the equipment,
the instructions provided by the manufacturer for installation
of the equipment and the venting system shall include:

• Detailed instructions for the installation of the venting
system design or the venting system components; and

• A complete parts list for the venting system design or
venting system.

Gas Equipment Venting System NOT Provided

When the manufacturer of a Product Approved side wall

horizontally vented gas fueled equipment does not provide
the parts for venting the ue gases, but identies “special

venting systems", the following requirements shall be sat-

ised by the manufacturer:

• The referenced “special venting system" instructions
shall be included with the appliance or equipment in­stallation instructions; and

• The “special venting systems" shall be Product Ap­proved by the Board, and the instructions for that sys­tem shall include a parts list and detailed installation
instructions.

A copy of all installation instructions for all Product
Approved side wall horizontally vented gas fueled equip­ment, all venting instructions, all parts lists for venting
instructions, and/or all venting design instructions shall
remain with the appliance or equipment at the completion
of the installation.

Radiance Direct Vent

Certied to:

ANSI Z21.88-2014 / CSA 2.33-2014

Vented Gas Heaters

44 20306759

Proposition 65 Warning: Fuels used in gas, wood-burning

or oil red appliances, and the products of combustion of

such fuels, contain chemicals known to the State of California
to cause cancer, birth defects and other reproductive harm.
California Health & Safety Code Sec. 25249.6

Radiance® Direct Vent Gas Heater

29-3/4"

(758 mm)

31"

(787 mm)

7" Outer Dia.
(178 mm)

Flue Collar

L

C

4-3/4"

(120 mm)

14-7/8"

(378 mm)

RADIANCE

28"

(711 mm)

5"

(127 mm)

18-1/4"

(464 mm)

Supply

Inlet

PRE-INSTALLATION

RADIANCE DIRECT VENT

Weight: Fully assembled; 350 lbs.

STOVE DIMENSIONS

Fig. 1 Radiance dimensions.

20306759

5

A

B

E

C

D

PRE-INSTALLATION

INSTALLATION REQUIREMENTS

The installation must conform with local codes or, in the
absence of local codes, with the National Fuel Gas Code,
ANSI Z223.1/NFPA 54 - latest edition. (EXCEPTION: Do
not derate this appliance for altitude. Maintain the mani­fold pressure at 3.5" w.c. for Natural Gas, and 10" w.c. for
Propane).

In Canada, installation must be in accordance with the
current CSA B-149.1 Installation Codes and/or local codes.

The installation should be done by a qualied service

person who is familiar with the building codes and instal­lation techniques appropriate for your area to accomplish
a safe and effective installation.

Your dealer or your local gas supplier will be able to refer

a qualied service person.

WARNING

Due to high temperatures, the heater should be located

out of trafc and away from furniture and draperies.

The surface of the Heater Is hot when it is in use. Young
children should be watched carefully when they are in
the same room when the Heater is in use, and they
should be taught to avoid the hot surface. Keep any
objects that can burn well away from the Heater, and
observe the recommended clearances that follow.

DANGER

Radiance® Direct Vent Gas Heater

Direct Vent System Only

A. Flat on corner wall
B. Room Divider
C. Island

Fig. 2 Possible stove locations.

D. Cross Corner
E. Flat on wall

ST207a

CLEARANCE REQUIREMENTS

Minimum Clearances to Combustible Materials

Measure side clearances as shown in Figures 3, 4 and 5
from the outer edge of the cast iron stove top. Measure
rear clearances from the outermost surface of the steel
rear skirt.

The Radiance heater is approved for installation into an
alcove constructed of combustible materials to the dimen­sions and clearances shown on the next page.

The same clearances apply in a standard parallel instal­lation.

HOT GLASS WILL

CAUSE BURNS.

WARNING

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of burns from

the hot viewing glass is provided with this

appliance and shall be installed.

In choosing a location for the stove, consider:

• The location of outside walls;

• Where additional heat is needed:

• Where family members gather most often;

• The vent system requirements.

NOTE: We do not recommend the use of wallpaper
next to this stove. Over time, radiant heat may cause
the wallpaper to shrink, or may adversely affect the
binders in the wallpaper adhesive.

66 20306759

• Always maintain required clearances (air spaces) to

nearby combustibles to prevent re hazard. Do not
ll air spaces with insulation. All venting components

must maintain a 1" (25 mm) clearance to combus­tible materials. The gas appliance and vent system
must be vented directly to the outside of the building
and never be attached to a chimney serving a sepa­rate solid fuel or gas-burning appliance.

• Refer to the manufacturer’s instructions included
with the venting system for complete installation pro­cedures.

Radiance® Direct Vent Gas Heater

42" (1070mm)

Min. Alcove Width

48"

(1220mm)

Max. Alcove

Depth

6"

(150mm)

6"

(150mm)

4" (102mm)

18"

(457mm)

18"

(457mm)

6"

(150mm)

6"

(150mm)

C

L

C

L

A

A

C

D

B

PRE-INSTALLATION

PARALLEL INSTALLATION

Minimum Clearance and Flue Centerline

ST130

Fig. 3 Parallel installation, minimum back and side clearances,
and ue centerlines.

CORNER INSTALLATION

Minimum Clearance and Flue Centerline

Wall Centerline from Floor

Direct Vent Only

ST131b

A
Effective Minimum
Centerline 57" (1448 mm) (HHT Pipe)
55" (1399 mm) (DuraVent Pipe)

Fig. 5 Minimum wall centerline.

WALL AND CEILING CLEARANCES

Fig. 4 Corner installation, minimum corner clearances and ue

centerline.

ST129

Direct Vent Only

A: Rear Wall 4" (102 mm)
B: Min. Clearance 44" (1118 mm)*
C: Min. Alcove Height 72" (1830 mm)*
D: Max. Alcove Depth 48" (1220 mm)
Sidewall Clearance 6" (150 mm)

*needed for installing DuraVent Minimum Vent Kit #2792 or
HHT Minimum Vent Kit #SLP-FSSK.

Fig. 6 Dimensions and clearances to ceiling or alcove.

ST101b

HEARTH REQUIREMENTS

The Radiance Heater must be installed on rigid ooring.

When the heater is installed directly on any combustible

surface other than wood ooring, a metal or wood panel

extending the full width and depth of the unit must be used
as the hearth. There are no other hearth requirements.

20306759

7

20

19

18

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Vertical Run (in feet)

(Measured from the appliance flue collar to the top of the vent pipe.)

Horizontal Run (in feet)

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

ST134b
Radiance
Horizontal
vent run
6/07

PRE-INSTALLATION

Radiance® Direct Vent Gas Heater

GAS SPECIFICATIONS

Max.

Input

Model Fuel Control

RADVT Nat.

RADVT LP

RADVTSC Nat.

RADVTSC LP

Millivolt
Manual

Millivolt
Manual

Signature

Command

Signature

Command

BTU/h

38,000 25,000

36,000 25,000

38,000 25,000

36,000 25,000

GAS INLET AND MANIFOLD PRESSURES

Natural Liquid Propane

Inlet Minimum 5.5" w.c. 11.0" w.c.

Inlet Maximum 14.0" w.c. 14.0" w.c.

Manifold Pressure 3.5" w.c. 10.0" w.c.

The installation of your Vermont Castings stove must
conform with local codes, or in the absence of local
codes, with the National Fuel Gas Code ANSI Z223.1/
NFPA 54 - latest edition, or CSA B149.1 Installation
code. (EXCEPTION: Do not derate this appliance
for altitude up to 2,000 (610 m) for natural gas and
4,500 feet (1,370 m) for LP Gas. Maintain the mani­fold pressure at 3.5" w.c. for Natural Gas and 10.0"

w.c. for LP Gas.

HIGH ELEVATIONS
Input ratings are shown in BTU per hour and are
certied without deration for elevations up to 2,000
feet (610 m) for natural gas and 4,500 feet (1,370 m)
for LP gas above sea level.

In the USA installations with elevations above 2,000
feet (610 m) for natural gas and 4,500 feet (1,370 m)
for LP gas must be in accordance with the current
ANSI Z223.1/NFPA 54 and/or local codes having

jurisdiction.

In Canada, please consult provincial and/or local
authorities having jurisdiction for installations at
elevations above 2,000 feet (610 m) for natural gas
and 4,500 feet (1,370 m) for LP gas.

Improper installation, adjustment, alteration, service
or maintenance can cause injury or property damage.
Refer to this manual for correct installation and oper­ational procedures. For assistance or additional infor-

mation consult a qualied installer, service agency, or

the gas supplier.

88 20306759

WARNING

Min. Input

BTU/h

HORIZONTAL TERMINATION

The vent must rise vertically a minimum of 24" (610 mm)

off the top of the unit, before the rst elbow. The horizontal

run may extend up to 20’ (6m) and include a vertical rise

of up to 40’ (12 m). (Figure 7) Horizontal termination must

also meet the criteria shown in Figures 10 through 12.

• Approved vent systems must terminate above and in­cluding the heavy line in Figure 7.

• Two 45° elbows may be substituted for each single 90°
elbow.

• With a rise between 2’ - 5’, one 90° or two 45° elbows
may be used.

May use up to

three 90° Elbows

No Restrictor Plate

Required

One 90°

Elbow

Fig. 7 Horizontal vent termination window.

Unacceptable

Venting Conguration

ST134a

Radiance® Direct Vent Gas Heater

20

19

18

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

20

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Vertical Run (in feet)

(Measure from the appliance flue collar to the top of the vent pipe.)

Horizontal Run (in feet)

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

ST132a
FDV28
Vertical
vent run
12/3/99 djt

PRE-INSTALLATION

VERTICAL TERMINATION

A vertical vent system must terminate no less than 8’ (2.44

m) and no more than 40’ (12 m) above the appliance ue

collar. A restrictor plate (supplied) must be used, where

specied, in all vertically terminated vent systems. (Refer

to Figure 8) NOTE: The restrictor plate supplied with
the vertical termination should be discarded. Adjust the
restrictor plate according to recommendations in Figure

10. A vertically terminated vent system must also conform
to the following criteria:

• No more than three 90° elbows may be used.

• Two 45° elbows may be substituted for one 90° elbow.
No more than six 45° elbows may be used.

• Vent must rise a minimum of 2 feet (305 mm) before
offset is used.

• Termination height must conform to roof clearance as

specied in Figure 11.

All Vertical Ter-

minations in this

area Require use

of the Restrictor

Plate*

RESTRICTOR PLATE ADJUSTMENT
FOR EXTENDED PIPE RUNS

The Radiance stove is shipped with a restrictor plate in
the Parts Bag. Adjustments can be made by loosening the
adjustment screw to allow the restrictor plate to slide up or
down. (Figure 9) A guide for usage is shown in Figure 10.

NOTE: Some installations may require some adjustment

by the installer for optimum ame appearance. Optimum
ame appearance is a ame that is not subject to tall, dirty
yellow ames producing soot or ames lifting off of the

ember bed ports.

Restrictor Plate Adjustment

• Remove the screw in the back wall of the rebox.

• Install restrictor plate as shown in Figure 9 with cut out
on left side. Secure with adjustment screw.

• Measure from center of screw to top edge of diverter
(Figure 9) to adjust plate according to guidelines in
Figure 10.

• Tighten attachment screw.

• Install logs following log installation instructions.

Adjustment Screw

**No Restrictor
Plate

Fig. 8 Vertical vent termination window.

20306759

Vertical terminations

must be within this

area

Unacceptable

Venting Conguration

**

ST132a

Fig. 9 Loosen screw to adjust restrictor plate.

Examples for Extended Run/Restrictor Plate Settings

Vertical 20’

(6 m), 90°

elbow, out 8’

(2.4 m)

Vertical 11’

(3.4 m), 90°

elbow, out 2’

(610 mm)

Vertical 40’

(12 m)

Vertical 5’

(1.5 m), 90°

elbow, out 5’

(1.5 m)

Restrictor plate measurement from top of plate to
center of screw:

3

⁄4” (70 mm)

2

from center

of screw to

top edge of

plate

Figure 10

Plate down

to top of slot

Plate down

to top of slot

23⁄8” (60 mm)

from center
of screw to
top edge of

plate

ST917

9

PRE-INSTALLATION

Radiance® Direct Vent Gas Heater

VENT TERMINATION CLEARANCES

When planning the installation, consider the location of the
vent terminal and clearances. Some of the most common
clearances to keep in mind are shown in Figure 11.

Important: All vent clearances must be maintained.
Check your vent termination clearances against Fig­ures 11 and 12.

The vent should be placed so that people cannot be burned
by accidentally touching the vent surfaces when the stove
is operating.

The vent termination should be located where it cannot be
damaged by such things as automobile doors, lawn mowers
or snowblowers and it should be located away from areas
where it could become blocked by snow, etc.

Some considerations are:

• Obstructions or impediments to venting.

• Nearby combustible materials that could come into con­tact with combustion exhaust gases.

• Other nearby openings {within 12" (305 mm)} through
which exhaust gas could reenter the building.

• All vegetation within 3’ (76 mm) that may interfere with
the draft.

Other factors that inuence where the installation will be

sited include the location of outside walls, where additional
heat may be desired in the home, where the family mem­bers gather most regularly, and perhaps most importantly,
the distance limitations of the venting system.

IMPORTANT

The horizontal termination must not be recessed into
the exterior wall or siding.

Horizontal vent runs must be level toward the vent

termination.

Clearances around the vent termination must be
maintained.

For installations using DuraVent pipe, parallel instal­lations with minimum wall clearance have restricted
access for connecting the Horizontal Vent Cap straps
to the vent pipe. See the maker’s instructions for rec­ommended installation procedures.

Your stove is approved to be vented either through the side
wall, or vertical through the roof.

• HHT does not require any opening for inspection of vent
pipe.

• Only HHT SLP venting components or DuraVent vent-

ing components specically approved and labeled for

this stove may be used.

• Minimum clearances between vent pipes and combus­tible materials is one (1") inch (25 mm), except where
stated otherwise.

• Venting terminals shall not be recessed into a wall or
siding.

• Horizontal venting must be installed on a level plane
without an inclining or declining slope.

There must not be any obstruction such as bushes, garden
sheds, fences, decks or utility buildings within 24" from the
front of the termination hood.

Do not locate termination hood where excessive snow or
ice build up may occur. Be sure to check vent termination
area after snow falls, and clear to prevent accidental block­age of venting system. When using snow blowers, make
sure snow is not directed towards vent termination area.

LOCATION OF VENT TERMINATION

It is imperative the vent termination be located observing
the minimum clearances as shown in this manual.

1010 20306759

Radiance® Direct Vent Gas Heater

V

X

X

X

D

E

B

B

B

C

B

M

B

A

J

K

F

L

VENT TERMINATION AIR SUPPLY INLET

AREA WHERE TERMINAL IS NOT PERMITTED

H

I

Fixed

Closed

Operable

Operable

Fixed

Closed

B

INSIDE

CORNER DETAIL

A

G

CFM145a

V

V

V

V

V

V

V

V

N

GENERAL VENTING INFORMATION - TERMINATION LOCATION

PRE-INSTALLATION

A = Clearance above grade, veranda, porch, deck

CANADIAN INSTALLATIONS

1

12" (30cm) 12" (30cm)

US INSTALLATIONS

2

or balcony

B = Clearance to window or door that may be

opened

C = Clearance to permanently closed window 12" (305mm) recommended to prevent window

D = Vertical clearance to ventilated soft located

6" (15cm) for appliances <10,000 BTU/h (3kW)

12" (30cm) for appliances >10,000 BTU/h (3kW)
and <100,000 BTU/h (30kW)

36" (91cm) for appliances >100,000 BTU/h
(30kW)

6" (15cm) for appliances <10,000 BTU/h (3kW)

9" (23cm) for appliances >10,000 BTU/h (3kW)
and <50,000 BTU/h (15kW)

12" (30cm) for appliances >50,000 BTU/h
(15kW)

12" (305mm) recommended to prevent window

condensation

condensation

18" (458mm) 18" (458mm)

above the terminal within a horizontal distance

of 2' (610 mm) from the center line of the
terminal

E = Clearance to unventilated soft 12" (305mm) 12" (305mm)

F = Clearance to outside corner see next page see next page

G = Clearance to inside corner see next page see next page

H = Clearance to each inside of center line

extended above meter/regulator assembly

3' (91cm) within a height of 15' (5m) above the
meter/regulator assembly

3' (91cm) within a height of 15' (5m) above the
meter/regulator assembly

I = Clearance to service regulator vent outlet 3' (91cm) 3' (91cm)

J = Clearance to non-mechanical air supply inlet

to building or the combustion air inlet to any
other appliance

6" (15cm) for appliances <10,000 BTU/h (3kW)

12" (30cm) for appliances >10,000 BTU/h (3kW)
and <100,000 BTU/h (30kW)

36" (91cm) for appliances >100,000 BTU/h
(30kW)

6" (15cm) for appliances <10,000 BTU/h (3kW)

9" (23cm) for appliances >10,000 BTU/h (3kW)
and <50,000 BTU/h (15kW)

12" (30cm) for appliances >50,000 BTU/h
(15kW)

K = Clearance to mechanical air supply inlet 6' (1.83m) 3' (91cm) above if within 10' (3m) horizontally

L = Clearance above paved sidewalk or paved

7' (2.13m)

†

7' (2.13m)

†

driveway located on public property

M = Clearance under veranda, porch, deck or

12" (30cm)

‡

12" (30cm)

‡

balcony

N = Clearance above a roof shall extend a minimum of 24” (610mm) above the highest point when it passes through the roof

surface, and any other obstruction within a horizontal distance of 18” (450mm).

1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel

Gas Codes

† A vent shall not terminate directly above a sidewalk or paved

driveway which is located between two single family dwellings and
serves both dwellings

‡ Only permitted if veranda, porch, deck or balcony is fully open on a

minimum 2 sides beneath the oor.

Fig. 11 Vent termination clearances.

20306759

NOTE: 1. Local codes or regulations may require different

2. The special venting system used on Direct Vent

3. HHT assumes no responsibility for the improper

clearances.

Fireplaces are certied as part of the appliance, with

clearances tested and approved by the listing agency.

performance of the appliance when the venting system does
not meet these requirements.

11

PRE-INSTALLATION

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Inside Corner

G =

G

Combustible
6" (152 mm)

Noncombustible

V

2" (51 mm)

Outside Corner

V

F

F =

Combustible
6" (152 mm)

Noncombustible
2" (51 mm)

Radiance® Direct Vent Gas Heater

Alcove Applications*

C

D

C

V

O

E

Balcony -
with no side wall

V

M =

Combustible &
Noncombustible
12" (305 mm)

*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions

specied for vinyl or non-vinyl siding and softs. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All me­chanical air intakes within 10’ (1 m) of a termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity
air intakes within 3’ (914 mm) of a termination cap must be a minimum of 1’ (305 mm) below the termination cap.

Fig. 12

TERMINATION CLEARANCES.

Balcony -
with perpendicular side wall

E = Min. 2” (51 mm) for

non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls

O = 8’ (2.4 m) Min.

M

Combustible &
Noncombustible

M = 12" (305 mm)
P = 6” (152 mm)

M

V

P

No.

of Caps D
1 3’ (914 mm) 2 x D
2 6’ (1.8 m) 1 x D
3 9’ (2.7 m) 2/3 x D
4 12’ (3.7 m) 1/2 x D

D

= # of Termination caps x 3

Min.

C

= (2 / # termination caps) x D

Max.

C

Min.

Max.

Actual

Actual

Actual

Actual

Actual

584-15

1212 20306759

Radiance® Direct Vent Gas Heater

ASSEMBLY AND INSTALLATION

VENTING REQUIREMENTS AND OPTIONS

Approved Vent System Components

The Radiance Heater must be vented to the outdoors
through an adjacent exterior wall or through the roof. The
venting system must be comprised of the appropriate listed

venting components specied on this page. These parts

are available from DuraVent Corporation or your Vermont
Castings Dealer.

See Figure 4 for dimensions relevant to the standard
minimum-vent kits.

HHT Components*

Free Standing Stove Kit w/adj.
Termination Cap, SLP24-BK, SLP6-BK,
SLP6A-BK, SLP90-BK, SLP-WT-BK &
CCSLP

Vertical Termination cap - High Wind
(includes storm collar)

Decorative Wall Thimble Cover SLP-WT-BK

Decorative ceiling restop - black SLP-DCF-BK

Cathedral ceiling support - black SLP-CCS-BK

4" (100mm) pipe length - black SLP4-BK

6" (150mm) pipe length - black SLP6-BK

12" Pipe length-black SLP12-BK

24" Pipe length-black SLP24-BK

36" (915mm) pipe length - black SLP36-BK

48" Pipe length-black SLP48-BK

3"–6" (75 - 150mm) telescoping pipe
extension - black

3"–12" telescoping pipe extension-black SLP12A-BK

45 degree elbow-black SLP45-BK

90 degree elbow-black SLP90-BK

Radiance, Stardance, Oxford SLP adapter CCSLP

*CCSLP adapter is required when using HHT components.

SLP-FSSK

SLP-TVHW

SLP6A-BK

DuraVent Components

Minimum Horizontal Vent Kit 2792

Starter Pipe Assembly (incl. inner &

2768*

outer sections)

90° Elbow, Blk. 46DVA-E90B*

45° Elbow, Gal. 46DVA-E45

6" Straight, Blk. 46DVA-06B*

9" Straight, Blk. 46DVA-09B

11" - 14

5

⁄8" Adjustable Straight Section 46DVA-08AB

12" Straight 46DVA-12

24" Straight 46DVA-24B*

36" Straight 46DVA-36B

48" Straight 46DVA-48

Horizontal Vent Cap 46DVA-HC*

Wall Plate 46DVA-DC

Vinyl Siding Shield 46DVA-VSS

Snorkel Termination - 14" 46DVA-SNK14

Snorkel Termination - 36" 46DVA-SNK30

Wall Strap 46DVA-WS

Cathedral Ceiling Support Box 46DVA-CS

Storm Collar 46DVA-SC

Firestop Spacer 46DVA-FS

Flashing 0/12 - 6/12 46DVA-F6

Flashing 6/12 - 12/12 46DVA-F12

Steel Chimney Conv. Kit A (6

Steel Chimney Conv. Kit B (6

5

⁄8" - 85⁄8") 46DVA-KCA

5

⁄8" -

46DVA-KCB

101⁄2")

Steel Chimney Conv. Kit C (6

5

⁄8" - 13") 46DVA-KCC

Masonry Chimney Conversion Kit 46DVA-KMC

Vertical Termination Cap (High Wind) 46DVA-VCH

Vertical Termination Cap (Low Prole) 46DVA-VC

*Included in Minimum Horizontal Vent Kit #2792

20306759

All DuraVent Straight vent pipe sections have a net length

1

⁄2" (37mm) less than the nominal dimension; i.e., a 6"

1
(152 mm) Straight pipe section has an effective length of
41⁄2" (115 mm).

13

ASSEMBLY AND INSTALLATION

ASSEMBLING THE STOVE

Tools Required

• Phillips screwdriver (stub)

• Utility knife

• Metal drill bit: size 28 (.140"/3.5mm)

• Flat-blade screwdriver

• Power drill

• Reciprocating saw

• 9/16" wrench

Parts Bag Contents:

• Three (3) Vent Screws

• Two (2) Switch bracket screws

• Wood handle w/insert lifter (handle for operable door)

• Restrictor Plate

• 4" Starter pipe

• On-Off switch, housing, and wiring harness

• Three (3) Phillips round-head bolts, 1/4"- 20 x 1/2"

• One (1) Tube of Vent Gasket Cement

• Four (4) CS, Hex Hd 3/8-16 x 1 Gr 2-Z

• Four (4) Washer, Fl 3/8-Z

• LP Conversion Kit

• Homeowner’s Installation and Operating Manual

Unpack and Assemble Legs

The Radiance is shipped upright. Cut the shipping straps
before beginning assembly.

1. Slide stove to the rear of the pallet just far enough to
access rear leg holes. Make sure the stove does not
tip over backwards. (Figure 13)

2. Attach the rear legs using 3/8" hex head bolts and

at washer supplied. Tighten with a 9/16" wrench

or socket. Remove and discard the large slot-head

screws using the at-blade screwdriver.

3. Carefully tip the stove onto its rear legs. Adjust the
pallet to allow access to one of the front leg holes. Be
sure to leave the pallet under the stove to prevent the
stove from falling fully forward. (Figure 14)

CAUTION

To prevent valve tubing from being crushed or damaged,
do not rest valve or ignitor on wooden pallet.

Radiance® Direct Vent Gas Heater

ST720

Fig. 13 Slide stove back just far enough to access rear leg holes.

Washer

ST721

Fig. 14 Carefully tip stove onto back legs. Leave pallet under
stove to keep stove from falling fully forward.

4. Have your assistant attach one leg using the hard­ware described.

5. Move the pallet to allow access to the other front leg
hole. Attach remaining leg.

6. Remove pallet and allow stove to gently rest on all
four legs.

7. Adjust leg levelers to compensate for irregularities in
the hearth.

Hex Head Bolt

1414 20306759

NOTE: Verify the two relief doors (located on top of
the rebox) are properly seated on the gasket. The
doors should sit ush on the gasket, and should
lift easily from the seal around the opening.

Radiance® Direct Vent Gas Heater

WARNING

This appliance is equipped with a three-prong (grounded)

plug for your protection against shock hazard and should

be plugged directly into a properly grounded three-prong
receptacle. Do not cut or remove the grounding prong
from this plug.

INSTALL THE OPTIONAL FAN - RADVT MODELS

(MILLIVOLT ONLY - SEE PAGE 27 FOR SC MODEL)

If you are installing the optional convection Fan Kit #2767
(FK26), continue here. It is easiest to install fan kit before
connecting gas line.

1. The fan kit includes a Blower Assembly and a Rheostat
Assembly, connected by a cable. (Fig. 15) The Blower
Assembly mounts to the bottom rear of the stove, and
the Rheostat mounts to the valve cover plate. The as­sembly includes a ‘snapstat’ which automatically turns
the fan On (or Off) above (or below) approximately
109°. The Rheostat also provides a range of fan speed
settings from Off (which overrides the snapstat func­tion) to High. Unpack and inspect the Blower assem-

bly. Conrm that the fan spins freely.

ASSEMBLY AND INSTALLATION

ST147

Fig. 16 Remove rear shroud.

Side Shield

Snapstat

Snapstat
Bracket

Not
Used On
Radiance

Blower
Assembly

ST473a

Fig. 15 Fan kit components.

Snapstat/
Extension
Assembly

Rheostat
Assembly

2. Remove the rear shroud panel (Fig. 16) and fasten

the blower assembly to the rebox back with the two

bolts provided. (Fig. 17)

3. Attach the snapstat assembly to the snapstat brack­et with two sheet-metal screws. Attach the snapstat
bracket to the side shield. (Fig. 17)

4. The rheostat control switch attaches to the left side
of the valve bracket at the front of the stove. (Fig. 18)

• Remove retaining nut from shaft of rheostat. (if pre­installed)

Bolts

Fig. 17 Attach blower assembly and snapstat.

Rheostat

Rheostat
Retaining Collar

Rheostat Knob

Fig. 18 Attach the fan rheostat.

ST149

ST347a

• Insert the rheostat through the hole in the back of the
left side of the valve bracket, aligning the locator pin
with the smaller hole in that bracket.

• Thread the retaining nut onto the shaft of the rheo­stat, tightening with a wrench. Do not overtighten.

• Attach the control knob to the rheostat shaft.

• Use the wire tie to secure the fan and rheostat wire
harnesses together.

20306759

15

Outside Wall

Finishing Material
(Vinyl Siding, etc.)

ASSEMBLY AND INSTALLATION

Radiance® Direct Vent Gas Heater

VENTING SYSTEM ASSEMBLY

CAUTION

All HHT Direct Vent Stoves have been tested and
approved to ANSI/CSA Standards and will operate
safely when installed in accordance with this instruction
manual. Read all instructions before starting installation,

then follow these instructions carefully to maximize

stove performance and safety. Report damaged parts
to your dealer.

WARNING

Always maintain minimum clearances around vent

systems. Rear/Top Vent Vertical Side wall: Horizontal

sections of this vent system require a minimum of 3”
(76 mm) clearances to combustibles at the top of the

ue and 1” (25 mm) clearance at the sides and bottom
until the ue penetrates the outside wall. A minimum 1”
clearance all around the ue is acceptable at this point of
penetration. If vertical rise is 71⁄2 feet (2.3 m) or higher

when top venting, the clearance to combustibles is 1” on

all sides of the horizontal run. FOR VERTICAL RUNS

ONLY, maintain a 1” (25 mm) minimum clearance to all
sides. Do not pack the open air spaces around the stove

or ue with insulation or other materials. Any horizontal

run must have a 1/4” rise for every one (1) foot of run
towards the vent termination. Never run the vent level
or down.

• These models are approved to use HHT direct vent
pipe components and HHT termination kits, and Du­raVent components. No other venting system compo­nents may be used.

• Horizontal runs must be supported every 3 feet (914
mm) using wall straps. Vertical runs must be supported
every 8 feet (2.4 m) using wall straps. Slip wall straps
loosely on to pipe. Attach straps to framing members
using nails or screws. Tighten nut/bolt to secure pipe.

• The stove and venting system should be inspected

before initial use and at least annually by a qualied
eld service person. Inspect the external vent cap on a

regular basis to make sure that no debris is interfering

with the airow. Inspect entire venting system to ensure

proper function.

Failure to follow these instructions may create a possible

re hazard and will void the warranty.

Any common venting of this gas appliance with other
gas appliances is not allowed.

Important Safety Information

The termination cap MUST be vented directly to the out­side. The termination kit MUST NEVER be connected to

a chimney ue(s) servicing a separate solid-fuel burning

appliance or any other appliances.

• Termination cap MUST NOT be recessed into a wall
(see Figure 19).

• The installation must conform with local codes or in
the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.1 (in the United States) or with the
current installation code CSA B149 (in Canada).

WARNING

WARNING

Fig. 19 Termination cap on wall

BEFORE YOU START

Plan your installation. Set the stove in place and survey how
to best vent the unit. Select the appropriate termination kit
and vent pipe for the installation. Read these instructions
and the stove Homeowner’s Manual before beginning

installation. After vent conguration has been decided,

begin attaching pipe to unit.

Items required for installation:

Tools:

Phillips screwdriver Hammer

Saw and/or saber saw Level

Measuring Tape Electric drill and bits

Pliers Square

Building Supplies:

Framing materials

Wall nishing materials

Caulking Material (noncombustible)

1616 20306759

Radiance® Direct Vent Gas Heater

Align

Seams

Rotate

WARNING

Refer to pages 8 and 9 of this manual for the minimum
and maximum venting requirements of your stove and

for approved horizontal vent termination locations prior
to installation. Failure to do so may cause re hazard.

WARNING

Any horizontal run must have a 1/4” rise for every one

(1) foot of run towards the vent termination. Never allow
the vent pipe to run down. This could cause high tem-

peratures and may present a re hazard.

WARNING

Termination cap must be positioned so the embossed
arrow is pointed up.

General Information

The Radiance is approved for installation only with the vent
components listed on page 13. Follow the vent component
instructions exactly.

For U.S. installations: The venting system must conform
with local codes and/or the current National Fuel Gas Code,
ANSI Z223.1/NFPA 54.

For Canadian installations: The venting system must con­form to the current CSA B149.1 installation code.

INSTALL THE VENT ADAPTER PIPE

(Vermont Castings SLP Vent Components)

1. Attach Inner Starter Pipe, (found in the Parts Bag), to
the next section of inner pipe.

2. Run a bead of sealant about 1/2" from the upper end
of the Inner starter pipe and join the two sections to­gether.

3. Drill three pilot holes into the Inner Starter and secure
the assembly with three sheet metal screws. (Figure

20)

4. Dry t the Inner Pipe assembly to the stove for the
purpose of determining the center line of the pipe on
the wall.

5. Side Wall Terminations: Dry t the outer elbow with

the vertical outer vent and conrm the centerline

ASSEMBLY AND INSTALLATION

ST211

Fig. 20 Connect the inner starter with the next section of inner
vent pipe.

alignment with the wall thimble opening.

6. Attach the Inner Vent Assembly to the stove.

7. Place a 3⁄8" bead of millpack caulk around the inside
of the cast starter collar. Insert the 65⁄8" outer adapt­er into the cast outer starting collar and press down

rmly.

8. Install the CCSLP Outer Adapter Pipe.

9. Place a 3⁄8" bead of millpack caulk around the 4"
crimped end of the starter collar on the stove. Attach
the SLP pipe to the adapter, and secure by aligning

adapter and pipe seams, pressing down rmly until

pipe stops, and twisting to lock into place. (Figure 21)

20306759

ST648a

Fig. 21 Attach inner assembly to ue collar.

17

ASSEMBLY AND INSTALLATION

ASSEMBLE SLIP SECTIONS

The outer ue of the slip section should slide over the outer
ue of the pipe section and into (inner ue) the last pipe

section (see Figure 23).

Slide together to the desired length, making sure that a

11⁄2" outer ue overlap is maintained between the pipe

section and slip section.

The pipe and slip section need to be secured by driving
two 1/2 in. screws through the overlapping portions of the

outer ues using the pilot holes (see Figure 24).

This will secure the slip section to the desired length and
prevent it from separating. The slip section can then be
attached to the next pipe section.

If the slip section is too long, the inner and outer ues of

the slip section can be cut to the desired length.

WARNING

Risk of Fire/Explosion! DO NOT break seals on slip
sections. Use care when removing termination cap from
slip pipe. If slip section seals are broken during removal
of the termination cap, vent may leak.

Radiance® Direct Vent Gas Heater

Fig. 24 Screws into Slip Section

SECURE THE VENT SECTIONS

Vertical sections of SLP pipe must be supported every 8 ft.

The SLP restop includes tabs that may be used to secure

vertical sections.

The vent support or plumber’s strap (spaced 120° apart)
may be used to secure the vertical sections of pipe (see
Figure 25).

Horizontal sections of vent must be supported every 5 ft

with a vent support or plumber’s strap (see Figure 26).

CORRECT INCORRECT

Fig. 22 Make sure the seams are not aligned to prevent
unintentional disconnection.

Fig. 23 Slip Section Pilot Holes

WARNING

Risk of Fire/Explosion/Asphyxiation! Improper support
may allow vent to sag and separate. Use vent run
supports and connect vent sections per installation
instructions. DO NOT allow vent to sag below connection
point to appliance.

Fig. 25 Securing Vertical Pipe Sections

1818 20306759

Radiance® Direct Vent Gas Heater

ASSEMBLY AND INSTALLATION

HORIZONTAL TERMINATION CAP

WARNING

Risk of Fire! The telescoping ue section of the termina­tion cap MUST be used when connecting vent.

• 11⁄2” (38 mm) minimum overlap of vent and telescop-

ing ue section is required.

Failure to maintain overlap may cause overheating and

re.

Fig. 26 Securing Horizontal Pipe Sections

DISASSEMBLE VENT SECTIONS

To disassemble any two pieces of pipe, rotate either section
(Figure 27), so that the seams on both pipe sections are
aligned (Figure 28). They can then be carefully pulled apart.

Fig. 27 Rotate Seams for Disassembly

Note: For horizontal vent runs through a combusti­ble wall and framing dimensions, refer to appliance

installation manual.

Install the Horizontal Termination Cap

Attach slip section of cap to last vent section. Maintain 11⁄2"
overlap between slip and vent sections.

Note: For installations using black pipe, slide the
decorative wall thimble over the last vent pipe
before connecting the termination to the pipe.
When this connection has been made, slide the
wall thimble up to the interior wall surface and
attach with screws provided.

Secure termination cap to exterior wall using provided
holes and fasteners.

Vent termination must not be recessed in the wall. Siding
may be brought to the edge of the cap base.

CAUTION

Risk of Burns! Local codes may require installation of a
termination guard to prevent anything or anyone from
touching the hot cap.

Fig. 28 Align and Disassemble Vent Sections

20306759

Flash and seal as appropriate for siding material at outside
edges of cap.

When installing a horizontal termination cap, follow the cap

location guidelines as prescribed by current ANSI Z223.1
and CAN/CGA-B149 installation codes.

19

ASSEMBLY AND INSTALLATION

Radiance® Direct Vent Gas Heater

DIVERT ROOF RUN-OFF

HHT recommends, where excessive water run-off is
possible, use of one of the two options shown in Figure
29 to prevent water running off the roof and onto/into the

horizontal termination cap.

Install gutter

Vent Opening for Combustible Walls

9"

(244 mm)

9"

(244 mm)

Stove Hearth

Opening for Noncombustible Wall

7"

(190 mm)

Stove Hearth

Fig. 30 Locate Vent Opening on Wall

Framing Detail

2. Secure restop to the inside frame, center in the 9" x
9" vent opening.

3. Place stove into position. Measure the vertical height

(X) required from the base of the ue collars to the

center of the wall opening. Figure 31

Install L-shaped
diverter

Fig. 29 Locate Vent Opening on Wall

VERTICAL SIDE WALL INSTALLATION

NOTE: For all top vent vertical through-the-roof

installations, install the supplied ue restrictors
onto the top edge of the firebox flue adapter
according to the Vertical Side wall Installation Flue

Restrictor Chart.

1. Locate vent opening on the wall. It may be necessary

to rst position the stove and measure to obtain hole

location. Depending on whether the wall is combus-

tible or noncombustible, cut opening to size. Figure
30 (For combustible walls rst frame in opening.)

Combustible Walls: Cut a 9"H x 9"W (244 x 244 mm) hole
through the exterior wall and frame as shown. Figure 30

Noncombustible Walls: Hole opening must be 7" (178
mm) in diameter.

X

Fig. 31 Vertical Height Requirements

4. Using appropriate length of pipe section(s) attach to
stove by twisting collar.

5. Measure the horizontal length requirement including
a 2” (51 mm) overlap, i.e. from the elbow to the out­side wall face plus 2” (51 mm) (or the distance re­quired if installing a second 90° elbow). Figure 32

NOTE: When using ex vent, the opening will have
to be measured according to the 1/2” (13 mm) rise
in 12” (305 mm) vent run.

2020 20306759

NOTE: Always install vertical side wall horizontal

venting with a 1/4" rise for every 12" of run.

Radiance® Direct Vent Gas Heater

ASSEMBLY AND INSTALLATION

6. Use appropriate length of pipe sections – telescopic

or xed – and install. The sections which go through

the wall are packaged with the starter kit, and can be
cut to suit if necessary.

5

7. Guide the vent terminations 4" and 6

⁄8" collars into

their respective vent pipes. Double check that the
vent pipes overlap the collars by 2" (51 mm). Secure
the termination to the wall with screws provided and
caulk around the wall plate to weatherproof. As an
alternative to screwing the termination directly to the
wall, you may also use expanding plugs or an ap­proved exterior construction adhesive.

X

Fig. 32 Horizontal Length Requirement

FP1182

NOTE: Support horizontal pipes every 5' (152 cm)

with metal pipe straps.

VENT TERMINATION BELOW GRADE

Install Snorkel Kit #SLP-SNORK when it is not possible to
meet the required vent termination clearances of 12" (305
mm) above grade level. The snorkel kit will allow installation
depth of down to 7" (178 mm) below grade level. The seven

inches is measured from the center of the horizontal vent

pipe as it penetrates the wall. If the venting system is

installed below grade, a window well must be installed
with adequate and proper drainage. (Figure 35)

NOTE: Be sure to maintain side wall clearances
and vent run restrictions. Refer to Page 7, Figures

3, 4, 5, 6.

1. Establish the vent hole through the wall.

2. Remove soil to a depth of approximately 16" (406

mm) below the base of the snorkel. Install a window

well (not supplied). Rell the hole with 12" (305 mm)

of coarse gravel and maintain a clearance of at least
4" (102 mm) below the snorkel. (Figure 35)

3. Install the vent system as described on Pages 16-18.

4. Be sure to make a watertight joint around the vent

pipe joint at the inside and outside wall joints.

5. Apply high temperature sealant around the inner and

outer snorkel collars. Join the pipes and fasten the
snorkel termination to the wall with the screws pro­vided.

6. Level the soil to maintain a 4" clearance below the

snorkel.

7. If the foundation is recessed, use extension brack-

ets (not supplied) to fasten the lower portion of the

snorkel. Fasten the brackets to the wall rst, and then

fasten to the snorkel with self-tapping #8 x 1/2" sheet
metal screws. Extend the vent pipes out as far as the
protruding wall face. (Figure 35)

Cutout On Vinyl

Termination Cap

Fig. 33 Horizontal Termination Cap on a Vinyl Siding Wall

20306759

Vinyl Siding Wall

Recessed Wall

Firestop

Sheet Metal
Screws and
Bracket

Wall Screws
and Anchors

Waterproof Seal
Around Pipe

ST219

Fig. 34 Use extension brackets to mount snorkel against
recessed wall.

Finishing
Collar

7" Pipe

Wall Plate

21

RADIANCE

ASSEMBLY AND INSTALLATION

Radiance® Direct Vent Gas Heater

Wall Screws
and Anchors

Snorkel
Termination
Cap

4" Clearance

Gravel

Drain

Window Well

Fig. 35 Snorkel kit installation.

Waterproof Seal
Around Pipe

Firestop

list.)

• The maximum angular variation allowed in the system

is 270°. Figure 39

• For the minimum height of the vent above the highest

point of penetration through the roof refer to Figure 39�

Vertical Through-the-Roof Installation

Flue Restrictor Setting Chart

Vertical Run Restrictor Setting

8-12 feet of pipe Medium restriction
(2.4 – 3.7 m) Figure 36

12-40 feet of pipe Maximum restriction
(3.7 – 12 m) Figure 37

ST653

VERTICAL THROUGH-THE-ROOF

APPLICATION/INSTALLATION

For all vertical through-the-roof installations, the supplied

ue restrictors must be installed. Install the ue restrictor

according to the settings shown in the Vertical Through-the­Roof Installation Flue Restrictor Chart in order to balance

the airow in and out of the unit and to maintain proper
ame height.

This gas stove has been approved for:

• Vertical installations up to 40' (12 m) in height. Up to

a 10' (3 m) horizontal vent run can be installed within

the vent system using a maximum of two 90° elbows.

Figure 38

• Up to two 45° elbows may be used within the horizontal

run. For each 45° elbow used on the horizontal plane,
the maximum horizontal length must be reduced by

18" (450 mm).

Example: Maximum horizontal length:

No elbows = 10' (3 m)
1 x 45° elbow = 8.5' (2.6 m)
2 x 45° elbows = 7' (2.1 m)

• A minimum of an 8' (2.5 m) vertical rise is required.

(Figure 38)

• Two sets of 45° elbow offsets may be used within the

vertical sections. From 0 to a maximum of 8' (2.5 m) of
vent pipe can be used between elbows. Figure 38

• SLP-HVS supports offsets. This application will require

that you rst determine the roof pitch and use the ap­propriate starter kit. (Refer to Venting Components

FP3042

Fig. 36 Flue Restrictor Set at Medium Restriction

FP3043

Fig. 37 Flue Restrictor Set at Maximum Restriction

2222 20306759

Radiance® Direct Vent Gas Heater

Horizontal
overhang

12

X

20 in.

(508 mm)

Lowest

Discharge

Opening

Termination

Cap

Roof Pitch
is X / 12

Vertical
wall

H (min.) - Minimum height
from roof to lowest
discharge opening.

24 in. min.

(610 mm)

Roof Pitch H (Min.) Ft. Roof Pitch H (Min.) Ft.

Storm Collar

Roof

Flashing

Storm Collar

Vertical Termination

24 in. min.

(610 mm)

Termination

Cap

ASSEMBLY AND INSTALLATION

Horizontal
overhang

20 in.

(508 mm)

Lowest

Discharge

Opening

Vertical
wall

Firestop
Spacer

Flashing

Offset

Support Collar

Storm Collar

Roof

Flashing

H (min.) - Minimum height
from roof to lowest
discharge opening.

Flat to 6/12 1.0* Over 11/12 to 12/12 4.0
Over 6/12 to 7/12 1.25* Over 12/12 to 14/12 5.0
Over 7/12 to 8/12 1.5* Over 14/12 to 16/12 6.0
Over 8/12 to 9/12 2.0* Over 16/12 to 18/12 7.0
Over 9/12 to 10/12 2.5 Over 18/12 to 20/12 7.5
Over 10/12 to 11/12 3.25 Over 20/12 to 21/12 8.0

* 3 ft. minimum in snow regions

X

12

Roof Pitch
is X / 12

Fig. 39 Minimum Height from Roof to Lowest Discharge Opening

Plate

Figure 38. Typical Vertical Venting Conguration

Ceiling Support CollarCeiling Support

Trim Plate

20306759

23

ASSEMBLY AND INSTALLATION

INSTALL LOG SET

Before beginning log installation, remove stove front and
glass frame. Refer to Figures 40 and 41.

Note: Remove the safety barrier before you remove
the glass frame. To remove the barrier, simply lift
up and pull out until the tabs are clear of their
corresponding slots on the rebox. Then proceed
to remove the glass frame by following the steps
below.

Radiance® Direct Vent Gas Heater

DANGER

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of burns from

the hot viewing glass is provided with this

appliance and shall be installed.

Fig. 40 Remove the safety barrier and stove front.

Fig. 41 Release the latches to remove the glass frame.

ST139

ST141

2424 20306759

Radiance® Direct Vent Gas Heater

ASSEMBLY AND INSTALLATION

Before installation, inspect ember bed burner for damage.
Do not use ember bed if damaged or cracked. Small, shal­low surface cracks are acceptable.

1. Remove the logs from their packaging and inspect
each piece for damage. DO NOT INSTALL DAM­AGED LOGS.

2. Install the rear log by placing it on the ember bed

toward the back of the rebox. (Figure 42) The log
should touch the back wall of the rebox. When the

log is in place, the two (2) notches on the bottom of
the log rest on the two (2) ribs on the back side of the
ember bed. (Figure 43)

Fig. 42 Rear Log

Ribs for Rear Log

Rear Log

LG488

Ember Bed

3. Install the front left and right logs (Figure 44) by plac­ing them on the ribs shown in Figure 43. Make sure

the logs line up with the at spots on the ember bed

intended for location purposes. (Figure 43)

4. Install the left cross log by engaging the hole on the
bottom with the pin on the left side of the rear log. Set
front side of cross log on notch in ember bed. (Figure

45)

5. Install the right cross log by engaging the hole on the
bottom with the pin on the right side of the rear log.
Set front edge of cross log on ember bed as shown
in Figure 45.

LG489

Front Right Log

Front Left Log

Fig. 44 Front Logs

Rib Flat Spot for
Front Left Log

Fig. 43 Ribs for Logs

Rib and Flat Spot
for Front Right Log

LG487

Left Cross
Log

Front Left Log

Fig. 45 Completed Installation

Rear Log

Right
Cross Log

Front
Right Log

LG490

Ember Bed

20306759

25

P

I

L

O

T

TPTH

TP

TH

ASSEMBLY AND INSTALLATION

Radiance® Direct Vent Gas Heater

INSTALL ON/OFF SWITCH - RADVT MODELS

The switch assembly parts are found in the parts bag.

1. Attach switch assembly to left rear side of stove
shroud (when facing shroud) using two screws and
existing holes in shroud. (Figure 46)

2. Run wires down back of stove, under bottom of rear
shroud to valve.

3. Attach wires to valve terminals. (Figure 47)

Switch As­sembly

Screws

Fig. 46 Attach switch assembly to rear shroud.

Existing
Holes

ST315

SIGNATURE COMMAND® SYSTEM

General

RADVTSC models are equipped with the Signature Com­mand control valve (Figure 48) which operates on 6 volts.
The A/C module plugs into the stove junction box A/C power
supply. Four (4) “AA” batteries are used for back up during
power outages.

The Signature Command System can also be operated
without A/C power. The system can run on four (4) “AA” bat­teries for approximately six (6) months under normal use.

A/C power must be used to power the A/C module and
blowers.

Pressure Inlet

Valve

SIT VALVE

Thermopile

ON/OFF Switch or

Millivolt Thermostat

Fig. 47 Install wiring to switch before connecting to valve.

Pressure Outlet

Fig. 48 Signature Command Valve

FP1622

FP1909a

Pilot Adjust­ment Screw

WARNING

THERMOSTAT OR WALL SWITCH

CONNECTION (OPTIONAL)

Use only a thermostat rated for 500 - 750 millivolts.

Check the table below for the appropriate gauge thermostat
wire to use for the length of lead required in your installation.

Thermostat

Wire / Gauge Maximum Run

18 20 feet
16 20 - 40 feet
14 up to 60 feet

1. Install the wall thermostat or switch in the desired
location and run the wires to the stove location. Ter­minate these leads with 1/4" female connectors.

2. Connect the thermostat wires to the valve. (Figure

2626 20306759

47)

Electrical connections should only be performed by a

qualied, licensed electrician. Main power must be off

when connecting to main electrical power supply or
performing service. All wiring shall be in compliance
with all local, city and state codes. The appliance, when
installed, must be electrically grounded in accordance
with local codes or in the absence of local codes, with the
National Electrical Code ANSI/NFPA 70 (latest edition)
and Canadian Electrical Code, CSA C22.1.

CAUTION

Label all wires before disconnecting when servicing
controls. Wiring errors can cause improper and dan­gerous operation.

Radiance® Direct Vent Gas Heater

ASSEMBLY AND INSTALLATION

JUNCTION BOX WIRING

This should be done before framing the stove. Wire the
receptacle into an electrical circuit. Wire with minimum
60° C wire in accordance with prevailing codes.

Remove the external junction box cover by removing the

screw from the side of the outside rebox wall. Junction

box was installed at the factory.

The junction box cover has a factory installed “romex” style
strain relief connector. After connecting the wires, route
the wire leads through this connector. Refer to the wiring
diagram in Figure 49.

120V AC

60Hz

Factory Supplied
Not Supplied

Junction Box

Fig. 49 Junction Box Wiring Diagram

COMMAND CENTER WALL INSTALLATION

The command center may be mounted on the wall with
the use of the SCSWEK Kit (15ft. cable, junction box, wall
cover).

Mount the junction box provided at the desired lo­cation on the wall. Do not extend beyond the 15 ft.
wire cable provided. If a longer distance is required,
the 15 ft. may be extended up to 30 ft. maximum by
using two (2) SCSWEK cables plugged together.

Route the wire from junction box to lower control area
at bottom of stove. Unplug the 12" cable from the com­mand center. Attach the connector to the pins from wire
by pushing in to connector making sure to follow the color
code on connector. Plug the 15 ft. extension cable into
the 2 ft. cable. Remove command center from the stove
and plug the other end of the extension cable into the
command center. Snap on wall cover provided and screw
to junction box.

CAUTION

Electrical connections should only be performed by a

qualied, licensed electrician. Main power supply must

be turned off before connecting fans to the main elec­trical power supply or performing service.

WARNING

Electrical Grounding Instructions: This appliance is
equipped with a three-prong (grounding) plug for your

protection against shock hazard and should be plugged

directly into a properly grounded three-prong receptacle.

Install the Fan - RADVTSC Models

It is easiest to install the fan kit before connecting a gas line.

• Unpack and inspect the blower assembly. Conrm
that the fan spins freely.

• Unfasten the two machine bolts attached to the lower
back of the stove. Figure 51

• Using the two bolts secure the blower assembly to
the rear of the stove. Figure 51

• Connect the blower wires to the wire control board.
See Figure 53 on page 29.

ST473aED

Blower
Assembly

Fig. 50 RADVTSC Blower assembly

WALL SWITCH INSTALLATION

The wall switch wire connection is located off the 2 ft. wire
harness from the control box to the command center. Figure

52. The connection is labeled “Wall Switch”. Unplug the
male and female connectors and connect the two (2) low
voltage wires provided. Run wire to desired location on
wall. Up to 50 ft. of 18 ga. wire may be used if necessary.
Attach wires to wall switch. Mount the wall switch in to
junction box and screw on cover.

WARNING

Do not connect wall switch to 110 V circuit.

20306759

ST147

Fig. 51 Secure Blower assembly to lower back of the stove.

27

ASSEMBLY AND INSTALLATION

Radiance® Direct Vent Gas Heater

CONNECT THE GAS SUPPLY LINE

Check the Rating Plate attached by a steel cable to the

rebox, to conrm that you have the appropriate rebox for

the type of fuel to be used. The Radiance may be converted
from one gas to another using the appropriate Fuel Con­version Kit listed in this manual under Replacement Parts.

In the U.S.; Gas connection should be made in accordance
with current National Fuel Gas Code, ANSI Z223.1/NFPA

54. Since some municipalities have additional local codes,
be sure to consult your local authority.

In Canada; consult the local authority and CSA-B149.1
installation code.

NOTE: Always check for gas leaks with a mild soap
and water solution. Do not use an open ame for
leak testing.

Light the pilot according to the directions in the Operation
section of this manual.

BURNER INFORMATION

The appliance must only use the gas specied on the rating

plate, unless converted using a Vermont Castings Fuel
Conversion Kit. To convert from Natural Gas to LP use Kit
20012729 or 20012900. To convert from LP to Natural Gas
use Kit 20012899 or 20012902.

Conversion instructions are provided with each kit and in
this manual.

CAUTION

This appliance should only be connected by a qualied
gas technician. Test to conrm manifold pressures as
specied below.

The Radiance Heater and its individual shutoff valve
must be disconnected from the gas supply piping during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa).

The Radiance Heater must be isolated from the gas
supply piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressure equal to or less
than 1/2 psig.

There must be a gas shutoff between the stove and
the supply.

In order to connect Natural Gas, use a tting with 1/2"

NPT on the valve side and 1/2" natural gas supply line
with an input of 38,000 BTUs at a manifold pressure
of 3.5" between minimum inlet supply of 5.5" w.c. and
maximum of 14.0" w.c.

In order to connect Propane, use a tting with 1/2" NPT

on the valve side and 1/2" propane gas supply line
with an input of 36,000 BTUs at a manifold pressure of

10.0" between a minimum inlet supply of 11.0" w.c. and
maximum of 14.0" w.c.

THIS APPLIANCE SHOULD BE CONNECTED TO THE GAS SUPPLY ONLY BY A QUALIFIED GAS
SERVICE TECHNICIAN. FOLLOW ALL LOCAL CODES.

THERE MUST BE A GAS SHUT-OFF BETWEEN THE STOVE AND THE SUPPLY.

2828 20306759

Radiance® Direct Vent Gas Heater

SIGNATURE COMMAND WIRING DIAGRAM

ASSEMBLY AND INSTALLATION

Pilot

TO JUNCTION BOX

IN FIREPLACE

WHITE

Opt. Blower

BLACK
BLACK

Opt. Aux.

WHITE

300 Watt
Max.

NOTE: Wall switch wires
must be connected together
if a wall switch is not being used.

GREEN

PLUG-IN

CONNECTOR

Ground

Plug-in Connector
Control Board to
Solenoid

Gas In

A/C MODULE

Control Board

Conversion
NG/LP

Plug-in Connector
Stepper Motor to
Control Board

DC Power/Green

RF Receiver
ON/OFF Button

Black / Thermopile
Red / Thermopile

Sensor

Ignitor / Sparker

Plug-in Connector
Control Board to Command Center

OFF/LO

LED

ON/HI

Master Switch

Command Center

Gas Out

Optional

Wall Switch

Fig. 52 Signature Command Wiring Diagram

To Junction Box
In Fireplace

Fig. 53 Blower Wiring Diagram

BLACK

WHITE

Optional
AUX

Light

Valve

{

{

WHITE
BLACK

BLACK
WHITE

GREEN

Pilot Gas Tubing

Connector
Pin To Contro l Box

20306759

29

ASSEMBLY AND INSTALLATION

INSTALL THE SAFETY BARRIER

CERTIFIED

SAFETY BARRIER

NOTE: A barrier designed to reduce the risk of
burns from the hot viewing glass is provided
with this appliance and shall be installed for the
protection of children and other at risk individ­uals. If the barrier becomes damaged, the bar­rier shall be replaced with the manufacturer's
barrier for this appliance.* Any safety screen,
guard, or barrier removed for servicing the
appliance must be replaced prior to operating

the appliance.

* See parts list for model number�

The safety barrier has been designed to work with the
doors open or closed.

1. Remove screen from packaging.

2. Place the two bottom hooks over the bottom
edge of the stove opening Figure 54

3. Press the screen against the stove snapping the

two spring ngers until the screen ts securely

in place.

Radiance® Direct Vent Gas Heater

Bottom
Hooks

Fig. 54 Install safety barrier screen.

WARNING

The safety screen barrier must be installed after the
glass front is in place. It is not a replacement for the
glass and the unit must not be operated without the
glass in place.

INSTALL THE MESH AND GRILLE

Place the mesh and grille on the top of the Radiance stove
to complete assembly.

NOTE: It is the responsibility of the installer to
ensure the barrier is afxed to the stove at the time

of installation.

DANGER

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of burns from

the hot viewing glass is provided with this

appliance and shall be installed.

3030 20306759

Radiance® Direct Vent Gas Heater

L

O

H

I

Turn

counterclockwise

to increase

flame height

Turn clockwise

to decrease

flame height

OPERATING INSTRUCTIONS

OPERATION

The Radiance is operated with the front plate in place with
the doors open or closed. To open the front doors, pull
forward to separate the magnetic catch. Ensure the safety
barrier screen is in place during operation.

YOUR FIRST FIRE

Read these instructions carefully and familiarize yourself

with the burner controls shown on Page 32 (RADVT
models) or page 35 (RADVTSC models). Locate the pilot
assembly, Figure 56. Follow the lighting instructions in this
manual exactly.

During the rst re, it is not unusual to smell some odor

associated with new logs, paint and metal being heated.

Odors should dissipate within the rst eight to ten hours,

however, you can open a window to provide fresh air to
alleviate the condition.

PILOT AND BURNER INSPECTION

Each time you light your heater check that the pilot ame
and burner ame patterns are as shown in Figure 55. If
ame patterns are incorrect, turn the heater off. Contact
your dealer or a qualied gas technician for assistance.
Do not operate the heater until the pilot ame is correct.

Follow regular maintenance procedures as described in the
Cleaning and Maintenance section of this manual.

FLAME CHARACTERISTICS

It is important to periodically perform a visual check of the

pilot and the burner ames. Compare them to Figure 56. If
any of the ames appear abnormal, call a service person.

RADVT MODELS

Sensor

Thermopile

Pilot Assembly

Fig. 55 Pilot Assembly location.

20306759

ST476

RADVTSC MODELS

Figure 56 Correct pilot and burner ame appearance.

FP2453

FLAME & TEMPERATURE ADJUSTMENT

For RADVT models which are equipped with HI/LO valves,

ame adjustment is accomplished by rotating the HI/LO

adjustment knob located near the center of the gas control
valve. (Figure 57)

Figure 57 Flame adjustment knob for SIT valve.

31

PILOT

ON

OFF

ON

P

I

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O

T

O

F

F

O

F

F

OPERATING INSTRUCTIONS

Radiance® Direct Vent Gas Heater

LIGHTING AND OPERATING INSTRUCTIONS FOR RADVT MODELS (MILLIVOLT ONLY)

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING: If you do not follow these instructions exactly, a re or explosion

may result causing property damage, personal injury or loss of life.

A. This heater has a pilot which must be lit manually.

When lighting the pilot follow these instructions exactly.

B. BEFORE LIGHTING smell all around the heater area

for gas. Be sure to smell next to the oor because some
gas is heavier than air and will settle on the oor.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any stove

• Do not touch any electric switch

• Do not use any phone in your building

• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the Fire
Department

Lighting Instructions

1. STOP! Read the safety information above.

2. Turn off all electrical power to the stove.

3. Turn the On/Off switch to “OFF" position, set the remote
to OFF or set thermostat to lowest level.

4. Open control access panel.

5. Push in gas control knob slightly and turn clockwise

to “OFF".

C. Use only your hand to push in or turn the gas control

knob. Never use tools. If the knob will not push in or

turn by hand, do not try to repair it, call a qualied

service technician. Applying force or any attempted

repair may result in a re or explosion.

D. Do not use this stove if any part has been under wa-

ter. Immediately call a qualied service technician

to inspect the heater and to replace any part of the
control system and any gas control which has been
under water.

10. Push the control knob all the way in and hold. Im­mediately light the pilot by repeatedly depressing the

piezo spark ignitor until a ame appears. Continue

to hold the control knob in for about one (1) minute
after the pilot is lit. Release knob and it will pop back
up. Pilot should remain lit. If it goes out, repeat steps
5 through 8.

SIT NOVA

6. Wait ve (5) minutes to clear out any gas. Then smell
for gas, including near the oor. If you smell gas, STOP!

Follow “B" in the safety information above. If you do
not smell gas, go to the next step.

7. Remove glass door before lighting pilot. (See Glass
Frame Removal section).

8. Visibly locate pilot by the main burner.

9. Turn knob on gas control counter-clockwise to
“PILOT".

1. Turn the On/Off switch to Off position or set the ther­mostat to lowest setting.

2. Turn off all electric power to the stove if service is to
be performed.

3232 20306759

• If knob does not pop up when released, stop and
immediately call your service technician or gas
supplier.

• If after several tries, the pilot will not stay lit, turn
the gas control knob to “OFF" and call your service
technician or gas supplier.

11. Replace glass door.

12. Turn gas control knob to “ON" position.

13. Turn the On/Off switch to “ON" position or set
thermostat to desired setting.

14. Turn on all electrical power to the stove.

To Turn Off Gas To Heater

3. Open control access panel.

4. Push in gas control knob slightly and turn clockwise

to “OFF". Do not force.

5. Close control access panel.

Radiance® Direct Vent Gas Heater

OPERATING INSTRUCTIONS

TROUBLESHOOTING THE GAS CONTROL SYSTEM (RADVT MODELS)

SIT NOVA 820 MILLIVOLT VALVE

NOTE: Before trouble shooting the gas control system, be sure external gas shut off is in the “On" position.

Symptom Possible Causes Corrective Action

Spark Ignitor will not
light

Pilot will not stay
lit after carefully
following lighting
instructions

Pilot burning, no
gas to main burner

1. Defective or mis­aligned electrode at
pilot

2. Defective ignitor
(push button)

1. Defective pilot gener­ator (thermocouple),
remote wall switch

2. Defective automatic
valve

1. Wall switch or wires
defective

2. Thermopile may not
be generating suf­cient millivoltage

1. Using a match, light pilot. If pilot lights, turn off pilot and push the red button
again. If pilot will not light - check gap at electrode and pilot-should be 1/8” to
have a strong spark.

2. With the control knob in the pilot position, push the control knob all the way and
hold. Check for spark at electrode and pilot. If no spark to pilot, and electrode
wire is properly connected, replace the battery in the ignitor module and try
again. Refer to Maintenance Section. If the problem still exists, replace the
ignitor module box.

1. Check pilot ame. Must impinge on thermocouple/thermopile. NOTE: This
pilot burner assembly utilizes both a thermocouple and a thermopile. The

thermocouple operates the main valve operation (On and Off). Clean and or

adjust pilot for maximum ame impingement on thermopile and thermocouple.

2. Turn valve knob to “Pilot”. Maintain ow to pilot; millivolt meter should read

greater than 10mV. If the reading is okay and the pilot does not stay on, replace
the gas valve. NOTE: An interrupter block (not supplied) must be used to
conduct this test.

1. Check wall switch and wires for proper connections. Jumper wire across termi­nals at wall switch, if burner comes on, replace defective wall switch.. If okay,
jumper wires across wall switch wires at valve, if burner comes on, wires are
faulty or connections are bad.

• Be sure wire connections form thermopile at gas valve terminals are tight

and thermopile is fully inserted into pilot bracket.

• One of the wall switch wires may be grounded. Remove wall switch wires

form valve terminals if pilot now stays lit, trace wall switch wiring for ground.
May be grounded to stove or gas supply.

• Check thermopile with millivolt meter. Take reading at thermopile terminals

of gas valve. Should read 250-300 millivolts (minimum 150) while holding
valve knob depressed in pilot position and wall switch “Off”. Replace faulty

thermopile if reading is below specied minimum.

3. Plugged burner

orice

4. Defective automatic
valve operator

Frequent pilot out­age problem

1. Pilot ame may be

too low or blowing
(high) causing the
pilot safety
to drop out

2. Possible blockage of
the vent terminal

20306759

3. Check burner orices for debris and remove.

4. Turn valve knob to “On”, place wall switch to “On” millivolt meter should read
greater than 150mV. If the reading is okay and the burner does not come on,
replace the gas valve.

1. Clean and/or adjust pilot ame for maximum ame impingement on thermopile

and thermocouple.

2. Check the vent terminal for blockage (recycling the ue gases)

33

OPERATING INSTRUCTIONS

Radiance® Direct Vent Gas Heater

FOR YOUR SAFETY READ BEFORE LIGHTING

WARNING

If you do not follow these instruction exactly, a re or explosion may result causing property damage,
personal injury or loss of life.

A. This appliance is equipped with an ignition device which automatically lights the pilot. Refer

to the instructions.

B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to

the oor because some gas is heavier than air and will settle on the oor.

WHAT TO DO IF YOU SMELL GAS:

• Do not attempt to light any appliance.

• Do not touch any electric switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's
instructions.

• If you cannot reach your gas supplier, call the re department.

C. Use only your nger to push in the master switch. Never use tools. If the switch will not function

by hand, do not try to repair it. Call a qualied service technician. Force or attempted repair
may result in a re or explosion.

D. Do not use this appliance if any part of it has been under water. Immediately call a qualied

service technician to inspect the appliance and to replace any part of the control system and
any gas control that has been under water.

3434 20306759

Radiance® Direct Vent Gas Heater

OPERATING INSTRUCTIONS

LIGHTING AND OPERATING INSTRUCTIONS

FOR RADVTSC MODELS

1. STOP! Read the safety information above.

2. This appliance is equipped with an ignition device which automatically lights the burner. Do not try
to light the burner by hand.

3. With ve (5) minutes to clear out any gas. Then smell for gas, including near the oor. If you smell

gas, STOP! Follow "B" in the safety information on Page 34. If you do not smell gas, go to next
step.

4. Press the master switch to the "ON" (-) position. Within eight (8) seconds it will beep once. This
indicates the system is ready.

5. Press "ON " button. Sparker will spark and pilot ame will light.

6. Once pilot ame is established, the main burner ame will light automatically.

7. If the pilot will not stay lit after several tries, turn the master switch to "OFF" and call your service
technician or gas supplier.

Master
Switch

ON

OFF

OFF

ON

Command Center

TO TURN OFF GAS TO APPLIANCE

1. Turn master switch to "OFF".

2. Turn off all electrical power to the appliance if service is to be performed.

20306759

35

SIGNATURE COMMAND OPERATING INSTRUCTIONS

FEATURES

Command Center (Figure 57)

• Easy Access Function Operation and System Cong­uration

• Operation Conrmation/Fault Diagnostic Indications

(LED/Buzzer)

• ON/OFF/HI/Med/Low Operation

• Optional Wall Mounting

Control Board

• Electronic Ignition

• Pilot Lockout safety feature

• Electric Power Regeneration from Thermopile to save
battery

• 6-hour Automatic Shut Down Option

• Convenient NG/LP Gas Type Conversion

• Standing Pilot/Intermittent pilot Conversion

• Previous settings Restoration Ability (Memory Off)

• Uninterrupted Operation During Power Outage (Auto­matic Battery Backup)

• ON/OFF RF Remote Receiver

• Optional Transmitter Learn Capability

AC Module (Requires TSFSC Remote)

• Easy Snap-on Design

• Embedded Compact 120 VAC Adapter with Auto Bat­tery Back up Feature

• Remote Controlled 3-step Blower, Lighting, and On/Off
Auxiliary AC Outputs

Transmitter (TSFSC)

• Three Flame Height Settings

• Low battery Indication for Transmitter

• Child Proof Lock-out

• LCD Backlight

• Security Codes (16)

• Countdown 6 hr Timer

• Standard Thermostatic Control Mode

• Smart Mode® Thermostat (Auto Flame & Blower Modula-

tion)

• Three Brightness Settings for Lights

• Three Speed Control for Blower

• On/Off Auxiliary

• Programmable Timer to turn blower on and off

NG/LP
Conversion

OFF

Battery Door

Command

Center

Fig. 58 Signature Command System Components

BATTERY INSTALLATION

The Command Center uses four (4) "AA" batteries as
back up for power outages. The system can operate for
approximately six (6) months on battery power.

To Install Batteries (not included):

1. Press down the battery door tabs and pull out to re­move battery door.

2. Install the batteries as indicated on Command Center.

3. Close battery door by snapping in place.

4. When the four (4) batteries are installed the system
will operate without power.

5. The batteries should be replaced when the LED indi­cates low battery or at least once a year.

RF Receiver
ON/OFF

Control
Board

ON

LED

Radiance® Direct Vent Gas Heater

To Thermopile

To Sensor

To Sparker

To Command
Center

To Stepper Motor

To Valve

Master Switch

AC Module

FP1917

3636 20306759

Radiance® Direct Vent Gas Heater

SIGNATURE COMMAND OPERATING INSTRUCTIONS

SYSTEM CONFIGURATION/SETUP

All System conguration/setup is done on the Command

Center. Choose the mode that best suits your needs.

NOTE: When using On/Off wall switch, the switch

must be in the ON position to perform all congu­ration set ups at the command center.

Cold Climate Option

The Signature Command System is designed to operate
in either Standing Pilot or Intermittent Pilot mode.

• The Standing Pilot Mode is best for colder climates
when the pilot must remain on continuously to prevent
condensation and ensure reliable operation.

• The Intermittent Pilot Mode is ideal for maximum ef­ciency, igniting the pilot only when needed to start your
stove, lowering fuel consumption and reducing your
carbon footprint.

Either mode benefits from the instantaneous battery
back-up, so you never have to worry about a power outage.

NOTE: The Signature Command System comes
standard in the Intermittent Pilot mode, so you
must follow the instructions below to switch to
Standing Pilot Mode if needed.

Intermittent/Standing Pilot Setup (Default intermit-

tent)

Holding the ON button on the Command Center while
turning on the master switch will toggle between standing
pilot and intermittent pilot.

After the above operation, one beep (for standing pilot)
or two beeps (for intermittent pilot) will be given as con-

rmation.

Six-hour Safety Shutdown Option (Default ON)

The system comes preset from the factory with a six (6)
hour shutdown from its last command of operation. This
is done to prevent the stove from continuing to operate if
unattended. You may disable this feature if you wish.

When the master switch is in the ON position (“-”), pressing
the ON button and the OFF button on the Command Center
simultaneously will toggle between enabling and disabling
the six-hour shutdown option.

After the above operation, one beep (for enabling the
six-hour shutdown option) or two beeps (for disabling the

six-hour shutdown option) will be given as conrmation.

Remote Transmitter Learn Function (Default OFF)

The RF receiver button located on the Control Board must
be in the on position before the learn function can begin.
Use paper clip to depress button. One beep for RF receiver
ON or two beeps for RF receiver OFF will be given as

conrmation. Refer to Figure 57 for location.

After the RF receiver is on, holding the OFF button on the
Command Center while turning on the master switch will
activate the learn function for the transmitter.

After the above operation, two beeps will be given and

the green LED on the Command Center will ash for 10

seconds.

During the 10 seconds, press the OFF button on a trans-

mitter to learn. Another two beeps will be given to conrm

a successful learning. Refer to transmitter instructions for
remote operations.

Shutting Off the Standing Pilot (Temporary Shut Off)

To shut off the standing pilot for service or summer shut
down, press and hold the ON button on the Command
Center for 3 seconds when the master switch is in the ON
position (“-”) and the main burner is off.

Note: Pilot will resume the next time system is turned on.

Key Combinations for System Settings

NOTE: When On/Off wall switch is used, it must be

in the On position to perform all system setups.

NOTE: By disabling this feature, your stove may
continue to operate unattended.

Function Operation Default Setting

Intermittent/Standing Hold the ON p button while turning on the master switch Intermittent
Pilot Setup (Beep once for standing pilot, twice for intermittent pilot) Pilot
Standing Pilot Temp. Hold the ON p button 3 seconds (when the master switch
Shutoff on the main burner is off)
RF Remote Receiver Push the RF receiver On/Off button on the control board RF OFF

On/Off Beep once for ON and beep twice for OFF
Learn Remote Hold the OFF q button while turning on the master switch
Transmitter (Beep twice then press any handheld remote button)
6-hour safety Press the ON p button and OFF q button simultaneously ON
shutdown setup (Beep once for ON, twice for OFF)

20306759

37

OPERATING INSTRUCTIONS

Radiance® Direct Vent Gas Heater

TURNING ON THE STOVE

Turn on the master switch and wait for a beep. Press the
ON button on the Command Center or turn on wall switch.
Pilot will light and burner will come on High setting or
last memory setting (See Turning Off Stove below). For
memory feature.

Pilot Safety Lockout Function

If the pilot doesn’t light after sparking for 30 seconds, pilot
trial lockout happens. The LED on the Command Center

ashes Green once every 2 seconds, until reset.

If the pilot ame is lost during normal operation, the system
will try three (3) times to relight after three (3) failures, ame

loss lockout happens. The LED on the Command Center

ashes Red-Green once every 2 seconds, until reset.

Turning the master switch on the Command Center to the
off position, then ON again will reset the system.

Flame Height Control

Press the ON button (on the Command Center) once to

turn on the main burner with maximum ame height.

Press the OFF button to decrease ame height. The rst
two presses will decrease the ame height to medium

and low. The third press on OFF will turn off the main

burner. In standing pilot conguration, the pilot will stay;
in intermittent pilot conguration, the pilot will be shut off.

Function Operation

Power Up Flip the master switch to the ON ("–")

position to power up the system

Stove ON Press the ON s button on the Com-

mand Center or turn on wall switch to
turn the stove on

Stove OFF Flip the master switch to the OFF ("o")

position OR press the OFF t button
3 times OR for Memory Off, hold the
OFF t button 3 seconds, or turn off
wall switch

Flame Height UpPress the ON s button once to turn on

the stove with maximum ame height

Flame Height
Down

Press the OFF t button to lower the

ame height to Medium and Low

COMMAND CENTER OPERATIONS

The following functions are available on the Command
Center.

Self Diagnostics Chart

The Command Center has a self-diagnostic LED enabling
you to troubleshoot problems and potentially avoid a service
call. Please refer to the charts below for indicator reference.

Fault LED Indication

Conversion Cover
Missing

Spark Fail Two RED (1 time)

No Sensor Signal Three RED (1 time)

Pilot Lockout - trial One GREEN, every 2 sec.

Pilot Lockout - ame

loss

Low Battery One RED, every 10s (contin-

No or Low Thermopile
Power

Learning GREEN Flashes, every 1

AC Power On GREEN solid

Pressure Switch Failed
(Power Vent only)

NOTE: Due to the sensitive temperature monitor­ing components in the transmitter, it is neces-

sary to allow the transmitter to stabilize to room
temperature before accurate room temperatures
are displayed. If the transmitter is activated from
a severe cold condition, allow 15 minutes for
accurate temperature readings to appear on the
LCD display.

One RED (1 time)

(until manual reset)

One RED-GREEN, every 2
sec. (until manual reset)

uously)

Two RED, every 10s (contin­uously)

sec. (for 10 sec.)

One RED every 2 sec. (until
manual reset)

WARNING

Turn appliance OFF (at the Master Switch) if you are away
from your house for an extended period of time. Never
leave anything on top of the surface of the transmitter.

Turning the Stove Off

There are three ways to turn the stove off.

1. Flip the master switch to the off (“O”) position. (This
will turn the entire system OFF.)

2. Press the OFF button to Medium, Low, then Off.

3. Hold the OFF button anytime for three seconds or by
turning off the wall switch. These two commands of
OFF are (Memory Off) the system will remember all
last settings before turning off. The next time the stove
is turned on, all settings will resume. To reset, change
to the desired settings and shut off by using the Mem­ory Off commands and the system will be reset to

those new settings.

3838 20306759

Function Areas of the LCD Display

Figure 59 shows the display of the TSFSC LCD.

Information Bar

The information bar shows the room temperature, the
“sending signal” radio icon, the low battery indication icon,

the child-proof icon, and the ame icon. This area doesn’t

have touch buttons.

• The room temperature will always be shown after pow­er-up. It displays the room temperature from 40 °F to
99 °F. “Lo” and “HI” will be displayed when the room
temperature is lower than 40°F or higher than 99°F, re­spectively.

Radiance® Direct Vent Gas Heater

OPERATING INSTRUCTIONS

• The radio icon will be shown when the transmitter is
sending a signal.

• The low battery indication icon will be shown when the
battery voltage is low.

• The child-proof icon will be shown when the child-proof
mode is activated.

• The ame icon indicates the current ame height - Off,
Low, Medium and High

Touch Area

The touch area contains all touch buttons to control the
transmitter. It consists of two categories: menus and
adjustment arrows. The blue LED backlight lights up for 8
seconds when any of the touch buttons is pressed.

• The menus include TIMER, THERMO, LIGHT, FAN and
AUX.

• The adjustment arrows include ON/up and OFF/down.

Their default function is to adjust the ame height.

When a button from the menu is pressed, the ON/up
and OFF/down buttons will temporarily become adjust­ment controls for the selected item. When the adjust­ment is done, the ON/up and OFF/down buttons go

back to ame height controller again.

Logo Bar

The Logo Bar contains the brand logo: Signature Com­mand System.

INITIALIZATION AND SETTING UP

Installing Batteries

Figure 60

The remote transmitter has two battery compartments,
one on each end of the transmitter. Always change all

four (4) batteries at the same time.

To install batteries,

1. Press down the battery door tab and pull out to remove
the battery door.

2. Install the batteries as indicated inside the battery
compartments.

3. Close the battery door by snapping in place.

4. When all four batteries are installed, the transmitter

will initialize for 5 seconds and then is ready for use.

5. The batteries should be replaced every 12 months or
when the low battery icon indicator is displayed.

Battery Door
Tabs

Information

Bar

Touch Area

Logo

Bar

Fig. 59 Functional areas of LCD Display

Menus

Adjustment

Controls

Fig. 60 Replacing the battery

Changing Temperature Unit

When batteries are installed in the transmitter, all available
icons on the LCD will be turned on then be cleared.

The LCD will display temperature unit: °F. Use ON ∆ to
toggle the units between °F and °C within the rst 5 sec-

onds.

The transmitter enters Manual Mode

The LCD displays room temperature with the chosen unit.

20306759

39

OPERATING INSTRUCTIONS

Setting Privacy Code on Transmitter

Figure 61

The remote transmitter privacy code is preset in factory.
In the event of activation or interference from other nearby
transmissions, change the code using the following pro­cedures (learn function must be performed after changing
the code):

• Press the ON/arrow button and the
TIMER button at the same time to
enter privacy code setup mode.

• The setup display is shown in the g-
ure. The four digits on the top stand
for the privacy code (as the actual
DIP switches on Ambient’s previous
remotes). The default values of the
four digits will be all “1” (ON).

• The rst digit will be ashing upon
entering the setup mode. Push the
ON button to toggle its value be­tween “0” (OFF) and “1”(ON), and push the “OFF” but­ton to jump to the next digit. The next digit will then start

ashing and the rst one stops ashing. Set up the four

digits to your choice.

• After setting up all the four digits, push “OFF” to nish
the process and return to the previous mode.

• The Signature Command control board then needs to
re-learn the new setting.

Performing Learn Function

• The RF receiver button on the control board in the stove
must be in the ON position before the learn function can
begin. With the Command Center master switch in the
ON position, use paper clip to depress the recessed
button on Control Board, one beep for RF receiver ON or
two beeps for RF receiver OFF. Figure 62

• Holding the OFF button on the Command Center while
turning on the master switch will activate the learn
function for the transmitter. Figure 62

• After the above operation, two beeps will be given and

the green LED on the Command Center will ash for 10

seconds.

• During the 10 seconds, press the OFF button on the
transmitter to learn. Another two beeps will be given to

conrm a successful learning. Figure 63

Resetting the Transmitter

If the transmitter is not working properly, reinstall the bat­teries to reset the transmitter.

• Pull out at least one of the batteries.

• Press any key on the screen to discharge.

• Wait for 10 seconds and reinstall the batteries.

Pushing and holding any key for more than 10 seconds
until the display refreshes will also reset the transmitter.

Figure 61

Radiance® Direct Vent Gas Heater

ON

LED

OFF

Battery Door

RF Receiver
ON/OFF

Figure 62 Command center
and control board

CONTROL

Do not use two (2) or more remote control

systems in the same area with the same privacy

code setting, as they will communicate with

each other. This may cause the appliances to
malfunction.

WARNING

Master Switch

FP1917

Front Panel Bezel

Optional

BOARD

FUNCTIONS AND OPERATIONS

General

The TSFSC Remote Control has four (4) operating modes:
Manual, Timer, Thermostatic and Smart Mode® thermo­stat. The control system can be set to temperature range

between 45° F and 90° F. The blower speed and ame

height can be adjusted in the manual, timer and thermo­static mode. The Smart Mode® thermostat will automat-

ically adjust ame height and blower speed according to

the difference between Set and Room temperatures.

The transmitter will operate the remote receiver from 1 foot
to a maximum of 30 feet. The distance is reduced when
batteries are low.

Manual Mode

Figure 63

In this mode, the TIMER button and the THERMO button
will only display “TIMER” and “THERMO”, respectively with­out showing the time and the SET temperature. Pressing

the ON/up and OFF/down buttons will change the ame

height if none of the menu buttons (TIMER, THERMO,

LIGHT, FAN, AUX) are pressed and ashing.

• Press the ON/up button to turn on the stove. The ame
icon on the LCD displays High.

4040 20306759

Radiance® Direct Vent Gas Heater

OPERATING INSTRUCTIONS

• Press the OFF/down button to decrease the ame
height and turn off the stove.
When the OFF/down button
is pressed for three times, the

ame icon changes form High to

Medium, to Low, then to Off.

• If the OFF button is held for
more than 3 seconds at any

ame height, the stove will be
turned off and the ame icon

disappears.

• Sliding up and down on the ar­row buttons can also turn on or
turn off the stove.

• If the stove is shut off using the
above methods in 3 and 4, all

Figure 63

the settings will be remembered and will be resumed
next time the stove is turned on (Memory Off).

Timer Mode

Figure 64

Press the TIMER button to enter timer mode. The stove will

stay on for a period of time as specied by the timer and

then be shut off by the transmitter when the timer counts

down to zero.

• When the TIMER button is
pressed, the Set Time appears
in the frame of the button and

ashes.

• Use ON/up and OFF/down to
increase or decrease the Set
Time in 15 min. increments, be­tween 0:00 to 6:00. Sliding up
and down on the arrow buttons
will increase or decrease the Set
Time in 1 hour increments.

• Push the TIMER button again to
conrm the Set Time, the trans-

Figure 64

mitter sends an ON signal to
turn on the stove.

• The ashing stops and the ON/up and OFF/down but-

tons become ame height controller again. The ame

height will then stay as set up by the ON/up and OFF/
down buttons.

• The TIMER button can be used when the transmitter is
in Manual Mode or in Thermostat Mode. In both modes,
the stove will be shut down completely when the timer

counts down to zero.

To exit Timer Mode, you can do one of the following:

• Push and hold the TIMER button for 3 seconds

• Use the OFF/down buttons to decrease the Set Time to

zero.

• Slide down on the arrow buttons to exit TIMER mode
and shut off the stove.

Thermostat Mode Figure 65

NOTE: The Command Center buttons will disable
when thermostat is being
used.

Press the THERMO button to
set the transmitter in thermostat
mode. The transmitter will auto­matically turn on the stove when
the room temperature is below
the set temperature and turn off
the appliance when the room
temperature is above the set
temperature within one degree.

1. When the THERMO button
is pressed, the Set tempera­ture appears in the frame of

Figure 65

the button and ashes.

2. Use ON/up and OFF/down to increase or decrease
the Set temperature in 1 degree increments, between
45 degrees and 90 degrees. Slide up and down on the
arrow buttons will increase or decrease the Set Tem­perature in 10 degrees increments.

3. Press the THERMO button again to conrm the Set

Temperature. The transmitter will send out an On
signal or an Off signal depending on the relationship
between the Set temperature and the Room tempera­ture.

4. The ashing stops and the ON/up and OFF/down but­tons become ame height controller again. The ame

height will then stay as set up by the ON/up and OFF/
down buttons.

5. To exit Thermostat Mode:
a. push and hold the THERMO buttons for 3 sec-

onds or

b. slide down on the arrow buttons to exit Thermo-

stat mode and shut off the stove.

®

Smart Mode

Thermostat Option for Thermostat Mode

Figure 66

Press and hold the THERMO
button and the ON/UP button at
the same time for 3 seconds to
toggle between Smart Mode

®

Smart
Mode
Icon

thermostat and the regular
Thermostat Mode. The icon
“Smart Mode” will appear un­der the Set Temperature. The
transmitter will automatically
adjust the ame height accord­ing to the difference between
the set temperature and the
room temperature. There is no
manual ame height adjust­ment. The fan speed will also

Figure 66

automatically adjust if turned on.

20306759

41

OPERATING INSTRUCTIONS

Radiance® Direct Vent Gas Heater

NOTE: there will a 10 second delay for the ame
adjustment when the stove is turned on.

• When Set Temp. is 3° F or higher than Room Temp.,

ame height will be on High.

• When Set Temp. is 2° F higher than Room Temp., ame
height will be on Medium.

• When Set Temp. is 1° F higher than Room Temp., ame
height will be on Low.

• When Set Temp. is equal to Room Temp., ame height
does not change (stays on low).

• When Set Temp. is lower than Room Temp., the stove
will be shut off.

• When Set Temp. is 1° F higher than Room Temp.,

again the ame height will be on Low.

• The fan speed follows the ame height, if the fan is
turned on.

To exit Smart Mode® thermostat and shut off the stove;

• Push and hold the THERMO buttons for 3 seconds, Or

• Press the OFF button, Or

• Slide down on the arrow buttons.

To shut off the Smart Mode® thermostat option and return
to regular thermostat mode, press and hold the THERMO
button and the ON/UP button at the same time for 3 sec­onds again.

Blower Speed Control

Figure 67

• If the blower is turned on using the FAN button, the
blower speed will adjust automatically when using
Smart Mode® thermostat (See Smart Mode® thermostat
section).

Blower On Delay Time and Off Delay Time Setup

Figure 68

• Hold the FAN button for 3 seconds until two numbers
appear on the LCD screen. The left number is blow­er On Delay and the right number is blower Off Delay
Time.

• When the rst number is ashing, use the ON/up button
to set the desired On Delay Time from 0 to 15 min.

• Press the OFF/down button to jump to the Off Delay
Time setup.

• When the second number is ashing, use the ON/up
button again to set the desired Off Delay Time from 0
to 15 min.

• Press the OFF/down button again to nish the setup
and the new settings will be transmitted to the receiver.

• The default settings are 5 minutes for the On Delay
Time and 8 minutes for the Off Delay Time, as shown.

NOTE: Blower will only work with ame on.

The blower speed control function is used to adjust the
speed of the blower connected to
the Signature Command System.
There are four speed levels, Off,
Low, Medium, High.

• Press the FAN button to enter
the blower speed control mode.

The fan icon will start ashing.

• Press the ON/up and OFF/down
button to increase/decrease the
blower speed.

• Press the fan button again to

conrm the speed setting. If the

stove is on, the blower speed
will take effect right away; if the

Fig. 67

stove is off, the receiver will remember this setting and
the blower is still off (see blower On Delay and Off De­lay in the next section).

• After the signal is sent, the ON/up and OFF/down but-

tons become ame height controller again.

• When the fan button is ashing, slide up and down on
the arrow buttons will turn the blower speed to High or
Off directly without pressing the fan button again to con-

rm.

Fig. 68

4242 20306759

Radiance® Direct Vent Gas Heater

OPERATING INSTRUCTIONS

Setting up Blank Screen or Constant Display in Idle

Figure 69

There is an option to set up how the LCD displays and func­tions when the transmitter is in idle. There are two choices:

• A) Mode. When the transmitter is in idle, the icons in the
“touch area” (timer, thermostat, blower, light and AUX)

will disappear, as shown in the gure on the left. When

any of the touch buttons is pressed, those icons will ap­pear and are ready to operate (default).

• B) Mode. The transmitter always displays all available
icons showing current status of timer, thermostat, blow-

er, light and AUX as shown in the gure on the right.

Press TIMER and THERMO buttons at the same time for
3 seconds to toggle between A) and B).

• When the current setting is A), touch any place in the
touch area to bring up the icons then press TIMER but­ton and THERMO button at the same time for 3 sec-

onds. The backlight will ash once to indicate that the

setting has changed to B).

• When the current setting is B), pressing TIMER button
and THERMO button at the same time for 3 seconds
will switch to A) Mode. The touch area icons will disap­pear.

Thermal Shutdown

When the ambient temperature is more than 99°F, the
transmitter will turn off the stove.

• The LCD will display “HI”.

• The Transmitter will not function until the room tem­perature has dropped below 99 degree Fahrenheit.

Low Temperature Condition

When the ambient temperature is less than 40 degrees
Fahrenheit, the LCD will display “LO”, and NO SIGNAL
will be sent to turn on the appliance.

All functions still remain the same for both
Manual Mode and Thermostat Mode

Child-proof Protection

The child-proof icon will be shown when the
child-proof mode is activated by pressing the
ON button and the OFF button at the same
time for three seconds.

• Enter childproof mode by pressing and
holding both the ON button and the OFF
button simultaneously for 3 seconds. The
Childproof indicator will be shown on the
LCD.

• Deactivate childproof mode by press­ing and holding the ON button and the
OFF button simultaneously for 3 seconds again. The
Childproof indicator disappears on the LCD.

• The transmitter cannot be operated in childproof
mode.

Fig. 69

SAFETY FEATURES

Low Battery Detection

When low battery condition occurs, the transmitter
will turn off the stove.

Battery voltage is checked every one minute.
When the battery voltage is low, the LCD displays
a low battery icon which will exist in all modes.

• The transmitter will not operate with low bat­tery voltage. Change the batteries before the batteries
become too weak for normal operations.

Power On Initialization

After the power-on initialization, the transmitter sends a

signal to turn off the stove.

Using the Mounting Base

Figure 70

The transmitter comes with a mounting base which allows
you to hang the transmitter on the wall.

Secure the mounting base on the wall with supplied screws.
For best viewing angle, make it the same height as your
eyes.

Hang the transmitter on the hook of the mounting
base, then push down so the

transmitter is ush to the

mounting base.

Fig. 70 Using the Mounting Base

20306759

43

TROUBLESHOOTING

Radiance® Direct Vent Gas Heater

TROUBLESHOOTING - SIGNATURE COMMAND SYSTEM

Troubleshooting the Transmitter

Symptom Causes Action

Battery icon on LCD on
transmitter

LCD display is blank Low Battery Check battery installation or replace batteries

LCD display shows “funny”
display

Appliance does not come on The transmitter did not match with the receiver. Make sure the transmitter has learned to the re-

Blower is not on after the
stove is turned on

General Troubleshooting

Low Battery Replace batteries. Change batteries every 6

months.

Low Battery Reset the transmitter (see “Resetting the Trans-

mitter” setting)

ceiver.

Transmitter measures temperature exceeding
99°F and shows “HI” on LCD.

Distance between the transmitter and receiver
is more than 30 feet

Move transmitter to a cooler place and wait until
temperature drops below 99°F.

Make sure the opening distance is less than 30
feet.

Blower setting is off. Press FAN key to select fan speed desired.

Blower delay setting is set too high. Press and hold FAN key to set desired ON/OFF

delays. This is done in minutes.

OPERATION

Install batteries and/or
plug in the AC board

Flip the master switch
(rocker switch) to the
ON position

After the beep

Press the ON button on
the Command Center

FAULT

No beep in about
8 seconds

No beep
or
no sound from the
valve indicating pilot
solenoid open

No sparking on
the pilot

Sparking doesn’t
continue

Pilot doesn’t light

Main burner doesn’t
light

DIAGNOSIS

Using

Make sure
Command
Center and

A

the control
board are
connected by
a 2 feet or 15
feet cable

Check NG/LP
conversion cap

B

and control
board
connections

C

Check pilot
connections

D

The Control Board is having interference from the
surrounding metal (Ground)

E

Check gas supply

F

Go through

battery?

E

Battery polarity wrong?

Battery voltage low?

AC plug is plugged to
AC mains?

The 5-pin connector on
the AC board broken or
bent?

LED on the Command
Center does not show
solid green?

Check valve
connections

Check
grounding

Go through

The sensor on the pilot
is not in the flame
(pilot flame too small)?

Check power
supply (go
through )

A

Go through

B

C

ACTION

Re-install batteries

Change batteries

Plug the AC plug to
AC mains

Repair or replace the
AC Board

Replace the AC Board

Replace the Control
Board or
Command Center

Sparking is happening
elsewhere (under the
pilot), re-install/replace
the pilot

Re-install the Control
Board, move it around
or change the
Control Board

Sparking is not in the
path of gas flow, adjust
sparker position or
replace the pilot

Adjust sensor position
or replace the pilot

4444 20306759

Radiance® Direct Vent Gas Heater

BURNER, PILOT AND CONTROL

COMPARTMENT

WARNING

Turn off gas before servicing stove. It is recommended

that a qualied service technician perform these check-

ups at the beginning of each heating season

Keep the control compartment, stones and burner areas
surrounding the stones clean by vacuuming or brushing
at least twice a year. Make sure the burner porting, pilot
air opening and burner air opening are free of obstructions
at all times.

Pilot Flame

The ames from the pilot should be visually checked as

soon as the heater is installed and periodically during

normal operation. The pilot ame must always be present
when the stove is in operation. Figure 71. The pilot ame
has three distinct ames, one engulng the sensor, one
engulng the thermopile, and the other reaching to the

main burner.

Burner

Inspect area around the injector. Remove any lint or foreign
material with a brush or vacuum.

Burner Flame

The ames from the burner should be visually checked

as soon as the heater is installed and periodically during
normal operation. In normal operation, at full rate, and after

operating for about 15 to 30 minutes, the ame should be

yellow.

If the ame is blue and candle-like in appearance, adjust

glass or add more glass over ports.

TROUBLESHOOTING

Sensor

Thermopile

FP2453

Fig.71 Pilot Flame

NOTE: The type of installation, vent system con-

guration, and wind effects may cause the ame

patterns to vary.

20306759

45

FUEL CONVERSION

PILOT

ON

OFF

PILOT

ADJ

L

O

H

I

Radiance® Direct Vent Gas Heater

WARNING

This conversion kit shall be installed by a qualied

service agency in accordance with the manufacturer’s
instructions and all applicable codes and requirements
of the authority having jurisdiction. If the information in

these instructions is not followed exactly, a re, explosion

or production of carbon monoxide may result causing
property damage, personal injury or loss of life. The

qualied service agency is responsible for the proper

installation of this kit. The installation is not proper and
complete until the operation of the converted appliance
is checked as specied in the manufacturer’s instruc­tions supplied with the kit.

CAUTION

The gas supply shall be shut off prior to disconnecting
the electrical power, before proceeding with the conver­sion (Figure 72).

Main

Shut

Gas

off

Line

Gas Supply Inlet

Fig. 72 Attach the gas line to the right side of the valve.

Valve

ST226a

VALVE CONVERSION

RADVT Series Models (Millivolt)

• Turn control knob to the OFF position, and shut off the
gas supply to the valve.

• Allow the valve to cool to room temperature.

• Remove the black protection cap by hand. (Figure 73)

I

H

O

L

I

H

O

L

Fig. 73

Fig. 74

• Insert a 5/32" or 4 mm Allen wrench into the hexagonal
key-way of the screw (Figure 74), rotate it counterclock­wise until it is free and extract it.

• Check that the screw is clean and if necessary remove
dirt. Flip the screw. (Figure 75)

• Using the Allen wrench as shown in Figure 76, rotate
the screw clockwise and tighten until snug.

NOTE: Do not over-tighten the screw. Recom-

mended to grip the wrench by the short side.

CONVERSION PRECAUTIONS

Before proceeding, turn control knob on valve to OFF and
turn gas supply OFF. Turn OFF any electricity that may be
going to the appliance.

CONVERSION PROCEDURE

• Remove stove front. Lift stove front up and then swing
bottom out and away to disengage from the stove body.

• Undo the right and left latches at the top of the glass
frame.

• Pull the top edge of the glass and frame assembly away

from the rebox face. Place the assembly out of the
way on a at, padded surface such as a counter pro-

tected by a towel.

• Remove the logset from the rebox.

4646 20306759

Fig. 75

I

H

O

L

I

H

O

L

Fig. 76

Radiance® Direct Vent Gas Heater

H

I

L

O

H

I

L

O

LP Configuration

Natural Gas
Configuration

8. Verify that if the conversion is from NG to LP, the screw
must be reassembled with the red o-ring visible. (Fig­ure 77)

9. Replace the black protection cap.

Red O-ring Visible

Red O-ring NOT Visible

Fig. 77

NOTE: Check that also the pilot and main burner
injectors are appropriate for the gas type.

Pilot Orice Conversion

• Locate pilot. (Figure 78)

• Replace pilot orice.

• Remove pilot hood by lifting up. (Figure 79) Do not re-

move the snap ring to remove the pilot hood.

CO141

FUEL CONVERSION

Index tab

Snap ring

Fig. 80 Remove pilot orice.

• Reinstall pilot hood. Be sure to align hood with index
tab.

Allen wrench

NOTE: It is not necessary to remove the pilot tube

for conversion.

• Remove pilot orice with Allen wrench. (Figure 80)

• Install the conversion orice.

Pilot

ST916

Fig. 78 Locate pilot.

Pilot hood

Pilot bracket

Fig. 79 Remove pilot hood.

20306759

47

FUEL CONVERSION

Radiance® Direct Vent Gas Heater

Burner Orice Conversion

• Remove three (3) 3/8” nuts on bottom side of burner
pan. (Figure 81)

• Carefully remove ember bed by tilting the right side up
and lifting out toward the right side of the unit. (Figure

82)

Remove Nut

Bottom View

ST918

Fig. 81 Remove three (3) nuts securing ember bed in place.

Orice

Bracket

Venturi Bracket

Remove Nuts

• Remove injector orice from left burner bracket with a
1/2" wrench. Use a back up wrench to prevent damage
to the manifold. (Figure 83)

• Install conversion orice. (Refer to Table 2)

• The air shutter is factory set according to Table 3 and
should not need adjustment. The air shutter opening

may be veried by measuring as shown in Figure 84.

Fig. 83 Use two wrenches to avoid damage to manifold.

CO145

Pem Studs

Fig. 82 Tilt ember bed slightly to correctly place on venturi and

air shutter.

ST919

Orice

Bracket

Fig. 84 The air shutter setting is 1/2" (13 mm) from the orice
bracket to the edge of the air shutter.

Orice

Air Shutter

CO142

4848 20306759

Fig. 86

Radiance® Direct Vent Gas Heater

FUEL CONVERSION

RADVTSC Series Models

• Using Torx T20 driver or slotted screwdriver, remove
and discard the regulator and rubber gasket in the face
of the valve. Figure 85

• Install the new regulator with rubber gasket from the
conversion kit. Make sure the gasket is seated properly.
Figure 85

• Convert the control box by using a small at head
screwdriver. Lift the conversion cap from the control box
and replace with new one marked LP. Be sure to place
correctly. Figure 86

Regulator

Rubber gasket

All Models

Replace burner making sure venturi on bottom of ember

bed aligns with orice and is seated properly on air shutter

assembly. Make sure burner is slid into place at a slight
angle and opposite to how it was removed. When burner is
slid into place, the three (3) pem studs should slide down
through clearance holes into the bottom of the control
panel.

Thread and tighten 3/8” nuts back onto pem studs on
underneath side of control panel, reversing Step 1 shown
in Figure 82.

Refer to Log Installation section of this manual to reinstall
logs.

Place conversion label supplied with kit on rating plate.

Replace glass and stove front.

Restore gas to system and relight appliance according to
Lighting Instructions on Page 32 (RADVT models) or Page
35 (RADVTSC models).

Leak check the system using a gas leak detector solution.

Relight the main burner in both the “HI” and “LO” positions
to verify proper burner ignition and operation.

Conversion is complete.

Fig. 85

Valve Regulator

Fig. 86

Convert Control Box

20306759

49

FUEL CONVERSION

Model Kit # Orice Part # Minimum Maximum

RADVT 20012729

RADVTSC 20308379

Model Kit # Orice Part # Minimum Maximum

RADVT 20012899

RADVTSC 20308415

RADVT/ RADVTSC 1/2" Open 1/2” Open 1/2” Open

Table 2. Injector Orice Size Matrix

Conversion to LP

#51 20008557 25,000 36,000

Conversion to Natural Gas

#33 / 0.113” 20012554 25,000 38,000

Table 3. Air Shutter Adjustment

Model Natural Gas

Natural Gas

High Altitude

Radiance® Direct Vent Gas Heater

Input (BTU/h)

Input (BTU/h)

LP

*LP models do not need re-oriced up to 4500’ (1,370 m) above sea level.

5050 20306759

Radiance® Direct Vent Gas Heater

CLEANING AND MAINTENANCE

Your Radiance Gas Heater will provide years of service with
minimal upkeep. The following procedures will help ensure

that your stove continues to function properly.

ANNUAL SYSTEM INSPECTION

Have the entire heater and venting system inspected

annually by a qualied gas technician. Replace any worn

or broken parts.

LOGSET AND BURNER / CLEANING AND

INSPECTION

Cleanliness is critical to the proper function of the heater.
The logset and burner must all be kept free of dust and
unobstructed by debris. Inspect these areas before each
use and clean as necessary.

1. Turn the burner OFF and let the heater cool com­pletely before cleaning.

2. Remove the safety barrier and lift the stove front up
and then swing the bottom out to disengage it from
the heater shell. (Figure 90)

3. Carefully remove the glass and frame assembly and

place it out of the way on a at, padded surface such

as a counter protected by a towel.

4. Carefully inspect the Logs for damage. Contact your
local dealer if any damage is evident.

5. Use a soft bristled brush to sweep dust or debris from
the Logs, Pilot and Burner. Use care as the logs are
fragile and susceptible to damage.

6. Replace the glass panel and frame assembly.

7. Replace the stove front and safety barrier.

CARE OF CAST IRON

An occasional dusting with a dry rag will help keep the
painted surfaces looking new. Use high-temperature stove
paints, available through your local dealer, to touch-up
areas as needed. Clean areas to be painted with a wire
brush and be sure to cover the logs, burner and valve
assembly, glass and frame assembly. Apply the paint
sparingly; two light coats of paint will give better results
than a single heavy coat.

Clean porcelain enamel surfaces with a soft, damp cloth.
Do not use abrasive cleaning agents. If necessary, use only
a cleaning agent formulated especially for use on porcelain
enamel surfaces.

CLEANING THE GLASS

WARNING

Allow the glass to cool completely before attempting
to clean.

DANGER

HOT GLASS WILL

CAUSE BURNS.

DO NOT TOUCH GLASS

UNTIL COOLED.

NEVER ALLOW CHILDREN

TO TOUCH GLASS.

A barrier designed to reduce the risk of burns from

the hot viewing glass is provided with this

appliance and shall be installed.

It will be necessary to clean the glass periodically. During
start-up, condensation, which is normal, forms on the inside
of the glass and causes lint, dust and other airborne par­ticles to cling to the glass surface. Also initial paint curing
may deposit a slight lm on the glass. It is therefore rec­ommended that the glass be cleaned two or three times
with a non-ammonia household cleaner and warm water
(we recommend gas stove glass cleaner). After that the
glass should be cleaned two or three times during each
heating season depending on the circumstances present.

NOTE: Clean glass after rst two weeks of oper­ation.

CAUTION

Turn the pilot off before painting. Allow the heater to cool
completely before painting.

20306759

51

CLEANING AND MAINTENANCE

Radiance® Direct Vent Gas Heater

GLASS REPLACEMENT

Replace glass only with HHT approved parts. Refer to
Replacement Parts section for correct glass. Refer to
Figures 87 and 88 and previous instructions for removal
of the damaged glass frame.

ST139a

Fig. 87 Remove the stove front.

3. Starting on a long edge, remove about 6" of the pro-

tective paper strip and apply the at adhesive face

of the gasket around the outside-facing edge of the
panel. Continue around the panel, applying about 6"
at a time and being careful to not stretch the material.
Do not overlap the gasket ends. (Figure 89)

4. Apply a thin bead of high temperature silicone rubber
sealant along the inside corner of the glass frame, all

around the perimeter. Place the at gasketed side of

the glass panel back into the steel frame. Pinch the
rounded inside-facing gasket material to bulk it up.

5. Replace the glass frame and front panel as previously
described.

ST179

ST141

Fig. 88 Release the latches to remove the glass frame.

GASKET REPLACEMENT

The Radiance Gas Heater uses a ‘tadpole’ type gasket to
seal between the glass panel and the frame. In time, this
gasket can become brittle and compressed and should be
replaced. New gasket is available from your dealer.

Shut off the gas supply and allow the stove to cool. Wear
safety goggles and a dust mask.

1. Remove the Front, Glass Frame and Glass Panel.
(Figs. 87 & 88) Remove the old gasket. Use a ra-

zor blade to separate the glass and gasket from the

frame, and to clean the glass of any remaining ce­ment or bits of gasket. Use a cold chisel if necessary.

2. Determine the correct length of gasket by laying it
out around the edge of the glass. Allow an extra 1 ­2" (25-50mm). Mark the spot to be cut. Use a utility
knife.

Fig. 89 Wrap the gasket material around the outside edge of the

glass.

INSPECT THE VENT SYSTEM ANNUALLY

Have the vent system inspected annually by a qualied

technician. Shut off the main gas supply before inspecting
the system. Both the inner exhaust pipe and the outer

combustion supply pipe must be checked to conrm that

they are unblocked and in good condition.

CHECK THE GAS FLAME REGULARLY

To ensure that the stove is operating properly, check the

ames periodically to conrm they match Figure 90. The
ames will be blue during the rst 15-20 minutes of oper-

ation, and will gradually turn to yellow after that.

Do not use your stove if the ame pattern differs from that

shown here. Contact your Vermont Castings dealer or a

qualied technician for help.

Fig. 90 Proper ame appearance

5252 20306759

Radiance® Direct Vent Gas Heater

OFF

ON



Thermopile

Black

Black

Millivolt

Gas Valve

TP/TH

TP

TH

Thermostat

(Optional)

Thermopile

Black

Black

Millivolt

Gas Valve

TP/TH

TP

TH

FAN JUNCTION BOX

FAN

POWER

CORD

Strain Relief

Chassis Ground

BLK

GRN

GRN

WHT

ON / OFF
Rheostat

Chassis
Ground

RHEOSTAT / SNAPSTAT

BOX

Snapstat

BLK

BLK

BLK

BLK

BLK

WHT

MOTOR

SNAPSTAT

ON/OFF
RHEOSTAT

WHT

WHT

BLK

BLK

BLK

GRN

BLK

WIRING DIAGRAMS - RADVT

On/Off Switch
Wiring

Optional Thermostat
Wiring

WIRING DIAGRAMS

ST124b

Fig. 91 On/off switch and optional thermostat circuit.

NOTE: If any of the original wire, as supplied
with the appliance, must be replaced, it must
be replaced with type SF-2, 200°C wire or its
equivalent.

ST124c

Optional Blower Kit Wiring Diagram

Optional Blower Kit

Schematic Diagram

Fig. 92 Fan circuit.

ST153

ST236

20306759

53

WIRING DIAGRAMS

WIRING DIAGRAMS - RADVTSC

Radiance® Direct Vent Gas Heater

Pilot

TO JUNCTION BOX

IN FIREPLACE

WHITE

Opt. Blower

BLACK
BLACK

Opt. Aux.

WHITE

300 Watt
Max.

NOTE: Wall switch wires
must be connected together
if a wall switch is not being used.

GREEN

PLUG-IN

CONNECTOR

Ground

Plug-in Connector
Control Board to
Solenoid

Gas In

A/C MODULE

Control Board

Conversion
NG/LP

Plug-in Connector
Stepper Motor to
Control Board

DC Power/Green

RF Receiver
ON/OFF Button

Black / Thermopile
Red / Thermopile

Sensor

Ignitor / Sparker

Plug-in Connector
Control Board to Command Center

OFF/LO

LED

ON/HI

Master Switch

Command Center

Gas Out

Optional

Wall Switch

Fig. 93 Signature Command Wiring Diagram

Fig. 94 Blower Wiring Diagram

To Junction Box
In Fireplace

BLACK

WHITE

Optional
AUX

Valve

Light

{

{

WHITE
BLACK

BLACK
WHITE

GREEN

Pilot Gas Tubing

Connector
Pin To Contro l Box

5454 20306759

Radiance® Direct Vent Gas Heater

10

1a

38

14

16

7

40

42

35a,b,c

44

6

7

8

15

27a,b

29

30

28

31

33

32

34a,b

9

22

23

13

21

11

12

52

20

45

3

5

4

26

53

36

19

17

18

25

39

1

1c

1b

1e

1d

2

47

48

49

41

56

55

60

24

50

50a

54

RADIANCE DIRECT VENT GAS HEATER

Replacement Parts

REPLACEMENT PARTS

HHT reserves the right to make changes in design, materials, specications, prices and discontinue colors and products at any time, without notice.

20306759

55

REPLACEMENT PARTS

Radiance® Direct Vent Gas Heater

RADIANCE DIRECT VENT GAS HEATER (CONTINUED)

Replacement Parts

Ref. Description RADVT/RADVTSC

1. Log Set - Complete 20012550

1a. Log, Rear 20012541

1b. Log, Right Front 20012543

1c. Log, Left Front 20012542

1d. Left Cross Log 20012544

1e. Right Cross Log 20012545

2. Ember Bed Assembly 20012206

3. Top Refer to Enamel Parts Chart

4. Screen, Top 1601970

5. Grille 1301195

6. Front II Refer to Enamel Parts Chart

7. Door, Left Refer to Enamel Parts Chart

8. Door, Right Refer to Enamel Parts Chart

9. Control Door Refer to Enamel Parts Chart

10. Left End Refer to Enamel Parts Chart

11. Right End Refer to Enamel Parts Chart

12. Leg Refer to Enamel Parts Chart

13. Glass Frame Assembly 5003075

14. Frame, Glass 1409112

15. Gasket, Glass Med. Knit 1203702

16. Glass, GFP Firebox 1601290

17. Wood Handle 1600664

18. Pan Hd, Sl 1/4-20 x 3-Z 1201310

19. Brushed Nickel Insert 30002714

20. Control Door Handle Assembly 30002730

21. Washer, Flat 1/4 - Blk. 266 x .629.064 1202473

22. CS, Hex Hd 1/4-20 x 5/8" - Blk 1201372

23. Latch, Front Door 30001249

24. Front Door Steel Handle w/Screw 30002720

25a. Fan Blower (RADVTSC Series Only) 20308374

25b Fan Blower (RADVT Series Only) FK26

26. Valve Nova SIT820.852 20012218

27a. Pilot Assembly 3Way N/DV RN 0.199.706 10002264

27b. Pilot Assembly 3Way N/DV RP 0.199.703 10002265

28. Pilot Top Convertible 10002266

29. Thermocouple 24" 24D0808

30. Electrode Ignitor w/ Cable SIT24 10001297

31. Thermopile 18" RS 26D0566

32. Nut Electrode SIT #0.974.144 37D0018K

33. Tubing Pilot w/ Fitting 1/8 x 24" 26D0665

34a. Pilot Orice #62 - NG Top Convertible 37D0022

34b. Pilot Orice #35 - LP Top Convertible 37D0023

35a. Orice Hood #51 LP 20008557

35c. Orice - High Altitude #33 (0.113") Natural 20012554

5656 20306759

Radiance® Direct Vent Gas Heater

REPLACEMENT PARTS

RADIANCE DIRECT VENT GAS HEATER (CONTINUED)

Replacement Parts

Ref. Description RADVT/RADVTSC

36. Ignitor Piezo w/ Nut SIT 057958

37. Bracket Piezo Ignitor/Control (not shown) 20010876

38. Manifold Assembly 20012202

39. Air Shutter Assembly 20012204

40. Trim ON/OFF Switch 30000874

Remote Transmitter (full function for RADVTS008C

41.
only)

42. Wire w/ Straight Term 2 End 50" 10002582

44. Gasket Base Pan 20004287

45. Gasket, HE Door 1203687

46. Gasket Cement, 3 oz. Tube (not shown) 1206122

47. Restrictor Plate 20013028A

48. Right Burner Support Assembly 20012443

49. Tie Bracket Assembly 20012442

50. Rear Shroud Assy. (RADVT Series Only) 20004194

50a. Rear Shroud Assy. (RADVTSC Series Only) 20300123

51. Bracket Igniter (not shown) (RADVTSC Series Only) 20300111

52. Safety Screen Barrier 30007253

53. Gas Valve Assembly 80D0001

54. Pilot Assembly 80D0006

55. Control Box 80D0018

56. Command Center 80D0005

57. Wire Valve/Control (not shown) 80D0010

58. Wire AC Module (not shown) 80D0009

59. Wire Command Center (not shown) 80D0008

60. AC Module SCSACM

Shell Enamel Parts - Radiance Direct Vent

Enamel

Color

Classic
Black

Biscuit

Bordeaux

Brown
Majolica

Ebony
Black

Model Top Left End

RADVTCB/
RADVTSCCB

RADVTBS/
RADVTSCBS

RADVTBD/
RADVTSCBD

RADVTBM/
RADVTSCBM

RADVTEB/
RADVTSCEB

1301194 30001751 30001752 30001376 30001378 30001377 30001413 30001753

30003244 30003239 30003238 30003240 30003242 30003241 30003243 30003245

30006794 30006789 30006788 30006790 30006792 30006791 30006793 30006795

30004933 30004927 30004926 30004928 30004930 30004929 30004931 30004934

30003262 30003257 30003256 30003258 30003260 30003259 30003261 30003263

Right

End

Front Left Door

TSFSC

Right
Door

Control

Door

Legs (4)

Fuel Conversion Kits

Model Nat. Gas to LP LP to Nat. Gas

RADVT 20012729 20012899

RADVTSC 20308379 20308415

20306759

57

OPTIONAL ACCESSORIES

Radiance® Direct Vent Gas Heater

FK26 FAN KITS - RADVT SERIES

The FK26 fan helps distribute heated air from within the

rebox out into the room. The fan is controlled by a snapstat
that turns power on and off as the rebox temperature

rises above and falls below a preset temperature. A rheo­stat provides for variable fan speeds. Used with standard
millivolt models.

Specications

115 Volt / 60Hz / .75 Amps

Maintenance

The fan itself does not require regular maintenance, how­ever, periodic cleaning of the fan and the surrounding area
is required.

Remote Controls - RADVT

The remote control allows you to turn the heater on or off
from anywhere in the room. Refer to Page 53 for wiring
diagrams. These remote controls are for use with standard
millivolt models.

ON/OFF Remotes ON/OFF Thermostat Remote

RCB,RCMT TSST, RCST

WARMING SHELF

Warming shelves add versatility to your stove; they can be
used to keep foods warm at mealtime.

Model Color

1560 Classic Black

1553 Brown Majolica

1555 Biscuit

1571 Bordeaux

Shelf Installation

1. Attach the shelf loosely to the stove, leaving the

screws loose enough to allow nal adjustments.

2. Position the shelf and adjust the brackets so the shelf

ts correctly.

3. Tighten the screws.
Refer to the instructions included with each warming shelf

for complete installation procedures.

5858 20306759

LIMITED LIFETIME WARRANTY

PRODUCT COVERED BY THIS WARRANTY

All Vermont Castings brand gas stoves, gas inserts, and gas replaces installed in the United States of America
or Canada.

LIMITED LIFETIME WARRANTY

HHT warrants that all cast iron parts, the combustion chamber,
ceramic burner, and heat exchanger of every Vermont Castings gas
product will be free of defective material or workmanship during
the period the product is owned by the original owner subject to
proof of purchase and the conditions and limitations listed on this
warranty document.

BASIC ONE-YEAR WARRANTY

HHT warrants to the original owner that your new Vermont Castings
Gas Appliance is free from defects in material or workmanship for a
period of one year from the date of purchase, subject to the following
conditions and limitations. Labor to replace these parts is covered
for one year, reimbursed per our warranty service fee schedule.

COMPONENT WARRANTY LIMITATIONS

PORCELAIN ENAMEL FINISHED PARTS: HHT offers no war-

ranty on chipping of enamel surfaces. Inspect all products prior
to accepting them for any damage to the enamel. The salt air
environment of coastal areas or a high humidity environment can

be corrosive to the porcelain enamel nish. These conditions can
cause rusting of the cast iron beneath the porcelain enamel nish,
which will cause the nish to ake off. Color lot variations with parts

and/or accessories can occur and are not covered by warranty.
GLASS: Glass is not warranted for breakage due to misuse or

accident. Glass is not covered for discoloration or stains due to
environmental issues, or improper cleaning and maintenance.

PLATED PARTS AND ACCESSORIES: Brass, nickel, and gold
parts should be cleaned with Lemon oil only. Commercial cleaners
cannot be used. Mortar mix and masonry cleaners corrode the

brass nish. The HHT will not be responsible for, nor will it warrant

any brass parts which are damaged by external chemicals or down
draft conditions.

ACCESSORIES: Unless otherwise noted, HHT supplied accesso­ries are covered for a period of one year.

GENERAL CONDITIONS AND LIMITATIONS

This Vermont Castings product must be installed or serviced by a

qualied installer, preferably NFI or WETT (Canada) certied, as

prescribed by the local jurisdiction. It must be installed and oper­ated at all times in accordance with the Installation and Operating
instructions furnished with the product. Any alteration, willful abuse,
accident, or misuse of the product shall nullify this warranty.

This warranty is non-transferable, and is made to the original owner,
provided that the purchase was made through an authorized sup­plier of Vermont Castings branded HHT products.

Parts covered under the Limited Lifetime Warranty will be covered
for the lifetime of the appliance up to a maximum of seven (7)
years after HHT discontinues the model. The maximum amount
recoverable under this warranty is limited to the purchase price of
the product and, if HHT is unable to provide replacement or repair
in an expedient and cost effective manner, HHT may discharge all
obligations under this warranty by refunding the purchase price of
the product.

Any labor and related repair charges relating to the cost and
expenses of replacing or repairing defective components under
the Limited Lifetime Warranty are not covered, except as provided
for under the Basic One-Year Warranty.

Any part or component replaced under the provisions of this war­ranty is covered for six months or the remainder of the original
warranty, whichever is longest.

Any installation, labor, construction, transportation, or other related
costs/expenses arising from defective part(s), repair, replacement,
or otherwise of same, will not be covered by this warranty, nor shall
the Company assume responsibility for same. IN NO EVENT SHALL
HHT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES CAUSED BY DEFECTS IN THE PRODUCT except
as provided by law

SOME STATES DO NOT ALLOW FOR THE EXCLUSION OR LIM­ITATIONS OF INCIDENTAL AND CONSEQUENTIAL DAMAGES
OR LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY
LASTS, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO
YOUR CIRCUMSTANCES. THIS WARRANTY GIVES YOU SPE­CIFIC RIGHTS AND YOU MAY HAVE OTHER RIGHTS WHICH
VARY FROM STATE TO STATE.

All other warranties expressed or implied with respect to the product,
its components and accessories, or any obligations/liabilities on the
part of the Company are hereby expressly excluded.

The Company neither assumes, nor authorizes any third party to

assume on its behalf, any other liabilities with respect to the sale
of this Vermont Castings product

The warranties as outlined within this document do not apply to
chimney components or other non HHT accessories used in con­junction with the installation of this product.

Damage to the unit while in transit is not covered by this warranty
but is subject to claim against the common carrier. Contact the
dealer from whom you purchased your stove (do not operate the
appliance as this might negate the ability to process the claim with
the carrier).

The Company will not be responsible for:

• Down drafts or spillage caused by environmental conditions
such as near-by trees, buildings, roof tops, hills, or mountains.

• Inadequate ventilation or negative air pressure caused by
mechanical systems such as furnaces, fans, clothes dryers, etc.

This warranty is void if:

• The stove has been operated in atmospheres contaminated by

chlorine, uorine, or other damaging chemicals.

• The stove has been subjected to prolonged periods of dampness
or condensation

• Any damages to the stove, combustion chamber, heat exchanger
or other components due to water, or weather damage, which
is the result of but not limited to, improper chimney/venting
installation.

• Any alteration, willful abuse, accident, or misuse of the product
has occurred.

IF WARRANTY SERVICE IS NEEDED...

Contact your installing Vermont Castings dealer. Make sure you
have your warranty, your sales receipt, the model number and
serial number of your HHT product. If you’re the installing dealer
is unknown or unable to provide necessary parts or service, a list of

Authorized Vermont Casting dealers can be located on the Internet

at www.vermontcastings.com

EFFICIENCY RATINGS

MODEL

ENERGUIDE RATINGS

STOVE EFFICIENCY

PERCENTAGE

(AFUE PERCENTAGE)

D.O.E.

RADVT Series 66.0 68.4

RADVTSC Series 66.0 68.4

www.vermontcastings.com