Vermont Castings UVS27R User manual

1 m
Vermont Castings UVS27
V ENT F REE G AS H EATER
O WNER ’ S G UIDE
Models UVS27R & UVS27M
INSTALLATION, OPERATION AND MAINTENANCE PROCEDURES
for use with
STARDANCE FREESTANDING STOVE SHELL
OR
PINNACLE HEARTHMOUNT STOVE SHELL
Tested and listed to ANSI Z21.11.2a 1997 by International Approval Services.
WARNING: If the information in this manual is not followed exactly, a fire
or explosion may result, causing property damage, injury or loss of life.
Do not store gasoline or other flammable vapors or liquids near this or
any other appliance.
WHAT TO DO IF YOU SMELL GAS:
•Shut off all gas to the appliance.
•Do not try to light any appliance.
•Do not touch any electrical switch; do not use any phone in your building.
•Immediately call your gas supplier from a neighbor’s phone.
Follow the supplier’s instructions.
•If you cannot reach the gas supplier, phone the fire department.
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
WARNING: Improper installation, adjustment, alteration, service or mainte-
nance can cause injury or property damage. Refer to this manual for correct
installation and operational procedures. For assistance or additional infor-
mation consult a qualified installer, service agency or the gas supplier.
THIS IS AN UNVENTED GAS-FIRED HEATER. IT USES AIR (OXYGEN)
FROM THE ROOM IN WHICH IT IS INSTALLED. PROVISIONS FOR AD-
EQUATE COMBUSTION AND VENTILATION AIR MUST BE PROVIDED.
SAVE THIS MANUAL FOR FUTURE REFERENCE
30000468h / 0601

2
Vermont Castings UVS27
Attention Consumer:
In order to ensure safe and effective installa-
tion, this unit must be installed only by a
qualified agency, individual, firm, corporation
or company that is experienced in the instal-
lation, repair and servicing of this type of
appliance and is familiar with the building
codes and installation techniques appropri-
ate in your area. Contact your hearth prod-
ucts dealer or local gas supplier for the name
of a qualified service person.
Installer:
Please read this manual carefully before you
begin the installation procedures. Failure to
follow instructions may result in property
damage, bodily injury or loss of life. This
manual contains important user information.
Keep this manual with the fireplace after
installation is complete.
Table of Contents
Specifications ....................................... 3
Installation Requirements..................... 6
Assembly Procedures ............................
Operation ...........................................13
Maintenance....................................... 16
Illustrated Part Lists............................ 20

3 m
Vermont Castings UVS27
Shell Dimensions
Hearthmount
DRAWINGS NOT TO SCALE
C
L
C
L
11"
(279mm)
Floor Hole
Street Elbow Union
1" Nipple
25"
(635mm)
26³⁄₄"
(680mm)
Valve Inlet
1¹⁄₂"
(38mm)
16"
(406mm)
0468a
Freestanding Stove
C
L
C
L
11"
(279mm)
26⁵⁄₈"
(676mm)
26"
(660mm)
3¹⁄₄"
(38mm)
Valve Inlet
14¹⁄₂"
(368mm)
Street Elbow Union
1" Nipple
To Clear Stove Leg
Valve Inlet
15⁵⁄₈"
(
379mm
)
0468

4
Vermont Castings UVS27
Safety Information
WARNINGS
IMPORTANT: READ THIS OWNER’S MANUAL CAREFULLY AND COMPLETELY BEFORE TRYING TO AS-
SEMBLE, OPERATE OR SERVICE THIS HEATER. IMPROPER USE OF THIS HEATER CAN CAUSE SERIOUS
INJURY OR DEATH FROM BURNS, FIRE, EXPLOSION, ELECTRICAL SHOCK AND CARBON MONOXIDE POI-
SONING.
DANGER
CARBON MONOXIDE POISONING MAY LEAD TO DEATH!
Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizzi-
ness or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have the
heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women,
people with heart or lung disease or anemia, those under the influence of alcohol and those at high altitudes.
Make certain you read and understand all Warnings. Keep this manual for reference.
It is your guide to safe and proper operation of this heater.
1. Use only Natural Gas with UVS27RN or UVS27MN.
Use only Propane with UVS27RP or UVS27MP. Do
not use any other fuels.
2. Install only in accordance with the National Fuel
Gas Code, ANSIZ223.1-latest edition.
3. Use only the installation instructions provided by
the manufacturer for this appliance. Installation
and repair should be done by a qualified service
person. The appliance should be inspected before
use and at least annually by a professional service
person. More frequent cleaning may be required
due to excessive lint from carpeting, bedding
material, etc. It is imperative that control compart-
ments, burners and circulating air passageways of
the appliance be kept clean.
4. Warning: Any change to this heater or its con-
trols can be dangerous. DO NOT make modifica-
tions to any heater or associated parts.
5. DO NOT install this heater in a bedroom or bath-
room.
6. Due to high surface temperatures, DO NOT install
this heater
•in a recreational vehicle,
•where curtains, furniture, clothing or other
flammable objects are less than 36 inches from
the front, top or sides of the heater,
•in high traffic areas,
•in windy or drafty areas.
7. DO NOT place clothing or other flammable mate-
rial on or near the appliance.
8. DO NOT obstruct the top grille at all. Doing so will
cause high levels of carbon monoxide that will
lead to death.
9. This heater needs fresh, outside air ventilation to
operate properly. See Fresh Air Requirements on
pages 6 and 7.
10. If heater shuts off, heater may not have enough
fresh air ventilation. Provide more fresh air. If
heater keeps shutting off, see Troubleshooting
pages 17-18.
11. DO NOT operate this heater
•where flammable liquids or vapors are used
or stored
•under dusty conditions.
12. The heater becomes very hot when operating.
Alert children and adults to stay away from hot
surfaces to avoid burns or clothing ignition. The
heater will remain hot for a time after shutdown.
Allow surface to cool before touching.
13. Carefully supervise young children when they are
in the room with the heater.
14. Do not use the heater if any part has been ex-
posed to or under water. Immediately call a
qualified service technician to inspect the room
heater and to replace any part of the control
system and any gas control which has been
under water.
15. DO NOT operate the heater if any log is broken or
damaged.
16. Turn heater off and let cool before servicing. Only
a qualified service person should service and
repair heater.
17. DO NOT operate this appliance with the safety
screen removed. If the safety screen is removed
from the appliance for service or cleaning, it must
be replaced before operating the heater.
High Altitude Derating
Input ratings are shown in BTU per hour and are for
elevations up to 4,500 feet (1370m). For elevations
above 4,500 feet (1370m) consult local building codes.
Nuisance outages may occur at altitudes above 4,500
feet (1370m) if dirt, dust, lint and/or cobwebs are
allowed to accumulate on burner and/or ODS pilot.
Monthly inspection and cleaning is recommended for
altitudes above 4,500 feet (1370m)

5 m
Vermont Castings UVS27
UVS27 Specifications
UVSRN UVSRP
UVSMN UVSMP
Fuel NG LP
Manifold Pressure 1.7”/3.5” 5.4”/11.0” (RP)
Min./Max. 4.4”/10.0” (MP)
Min. Inlet Supply
Pressure for adjustment: 5.0” w.c. 11.0”w.c.
Max. Inlet Supply
Pressure for adjustment: 8.0”w.c. 12.0”w.c.
Min. Output, BTU/hr: 19,500 19,500
Max. Output, BTU/hr: 28,000 28,000
Ignition: Piezo
Firebox Weight/shipping: 110 lbs.
General Information
Vent Free Features
The UVS27R and UVS27M Gas Heaters are unvented
gas appliances tested and listed to the ANSI standard
Z21.11.2a-1997. The Vent Free Gas Heater is config-
ured to use Natural Gas, (UVS27RN and UVS27MN) or
Propane (UVS27RP and UVS27MP). Because these
heaters are clean-burning and highly energy-efficient,
no venting system is required.
The firebox is shipped completely assembled and
ready for installation with either the Stardance (SUV) or
the Pinnacle (PUV) shell assemblies.
The firebox assembly is composed of the NG or LP
Burner, a base plate, firebox and screen. The log set,
burner tube, gas valve and pilot comprise the Burner
assembly. (Fig. 1)
The UVS27M is equipped with SIT control for manual
use only.
The UVSR is equipped with a Honeywell control
valve that allows thermostatic control, on/off switch or a
remote switch (not supplied).
Both models incorporate variable regulators that
allow you to adjust burner heat output between HIGH,
(28,000 BTU), and LOW, (19,500 BTU). See the
Operation Section for details.
The standing pilot incorporates an Oxygen Depletion
System (ODS/pilot) which shuts off gas flow to the
Unpack the Firebox
Remove the firebox assembly from the shipping carton
and inspect it for loose or damaged parts. The burner,
firebox and base plate should all be secured as a unit.
Do not install this appliance if any parts are loose or if
there is any visual or suspected damage resulting from
shipping or handling. Report damage to your dealer/
distributor immediately. The log set is packaged in the
box shipped inside the firebox.
To remove the packaged log set from the firebox,
swing the cam latch outward, remove the screen frame,
remove box and set aside. Contact your dealer if the
burner is loose or damaged in any way.
Optional Accessories
• Fan Kit 2960/FK28 is available to enhance circula-
tion of heated air into the living areas.
• Glass Panel / Catalytic Combustor Kit UVGDCK
• Warming Shelf; Classic and all porcelain enamel
colors.
This appliance may be installed in an aftermarket*
manufactured (mobile) home, where not prohibited
by state or local codes.
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 gasses.
*Aftermarket: Completion of sale, not for purpose of resale, from the
manufacturer.
Fig. 1 UVS27 gas firebox.
Safety
Screen
Supply
Line Inlet
OFF/ON/Pilot
Control Knob
Variable Regulator Honeywell or
SIT Control
Valve
Piezo Ignitor
ST100

6
Vermont Castings UVS27
WARNING
THIS HEATER MUST HAVE FRESH AIR FOR PROPER
OPERATION. IF IT DOES NOT, POOR FUEL COMBUS-
TION COULD RESULT. READ THE FOLLOWING IN-
STRUCTIONS TO ENSURE PROPER FRESH AIR
SUPPLY FOR THIS AND OTHER FUEL-BURNING
APPLIANCES IN YOUR HOME.
Modern construction standards have resulted in homes
that are highly energy-efficient and that allow little heat
loss. Your home needs to breathe, however, and all
fuel-burning appliances need fresh air to function
properly and safely. Exhaust fans, clothes dryers,
fireplaces and other fuel burning appliances use the air
inside the building. If the available fresh air supply is
insufficient to meet the demands of these appliances,
problems can result.
The UVS27R and UVS27M heaters have specific
fresh air requirements. You must determine that these
requirements will be met within the space where the
appliance will be installed. The following information will
help you insure adequate fresh air is available for the
heater to function properly.
Provide for Adequate Ventilation
Any space within a home can be classified in these
categories:
1) Unusually tight construction
2) Confined space
3) Unconfined space
First, determine which classification defines the in-
tended installation space.
Unusually Tight Construction
You must provide additional fresh air if the space falls
into this classification. Unusually Tight Construction is
defined as construction wherein:
a. Walls and ceilings exposed to the outside atmo-
sphere have a continuous water vapor barrier with a
rating of one perm or less, with openings gasketed or
sealed, and
b. weather stripping has been added on openable
windows and doors and
c. caulking or sealants are applied to areas such as
joints around windows and door frames, between sole
plates and floors, between wall and ceiling joints,
between wall panels, at penetrations for plumbing,
electrical and gas lines and at all other openings.
If your home meets all of the above criteria, you must
provide additional fresh air for the appliance as detailed
on Page 7.
If your home does not meet the above criteria, follow
the procedure below.
Determine If You Have a Confined or Un-
confined Space
Use the following formula to determine if you have a
confined or unconfined space.
Space is defined as the room in which you will
install the heater, plus any adjoining rooms with
doorless passageways or ventilation grilles between the
rooms.
The National Fuel Gas Code defines a confined
space as a space whose volume is less than 50 cubic
feet per 1,000 BTU per hour input rating (4.8m3 per Kw)
of the aggregate (total) input rating of all appliances
installed in that space and an unconfined space as a
space whose volume is not less than 50 cubic feet per
1,000 BTU per hour (4.8m3per Kw) of the aggregate
input rating of all appliances installed in that space.
Rooms communicating directly with the space in which
the appliances are installed, through openings not
furnished with doors, are considered a part of the
unconfined space.
1. Determine the volume of space (length x width x
height). Include adjoining rooms connected by doorless
passageways or ventilating grilles.
Example: Aroom that is 18’ x 12’ x 8’ has a volume of
1728 cubic feet. An adjoining open kitchen that is 10’ x
12’ x 8’ has a volume of 960 cubic feet. An adjoining
open dining room is 12’ x 12’ x 8’ with a volume of 1152
cubic feet. The total volume is 3840 feet. (1728 + 960 +
1152)
2. Divide the volume of space by 50 cubic feet. The
result is the maximum BTU/hour the space can support.
Example: 3840 cubic feet divided by 50 = 76.8 or
76,800 BTU/hour.
3. Add the BTU/hour ratings of all fuel-burning appli-
ances installed in the same space, including the
following:
Gas Water Heater Gas Furnace
Gas Fireplace Logs Vent-free Gas Heater
Vented Gas Heater* Other Gas Appliances*
*Do not include Direct-vent appliances as these use
outdoor air for combustion and vent to the outdoors.
Example:
Gas Range 55,000 BTU/hour
Vent-free Logset +25,000 BTU/hour
Total 80,000 BTU/hour
Installation Requirements
Fresh Air Requirements for
Combustion and Ventilation

7 m
Vermont Castings UVS27
4. Compare the maximum BTU/hour rating the space
can support with the total BTU/hour used by the
appliances.
Example: 76,800 BTU/hour the space can support
80,000 BTU/hour used by appliances
In this example, the maximum BTU/hour that the space
can support is less than the total used by the appli-
ances. The space is considered to be Confined Space.
Additional air must be provided to meet the require-
ments of the vent-free heater.
A confined space may be ventilated in two ways:
A. Open or provide at least two ventilating grilles to an
adjoining unconfined space. (Fig. 2)
Each of the two grilles must provide an opening of at
least 50 square inches, with all opening dimensions
being at least 3”. One grille must be within 12” of the
ceiling; the other within 12” of the floor. (If the total
exceeds 100,000 BTU/hour, additional grilles will be
needed.)
B. Vent the room directly to the outdoors. (Provide one
square inch of opening for each 4,000 BTU/hour)
WARNING
THIS HEATER SHALL NOT BE INSTALLED IN A
CONFINED SPACE UNLESS PROVISIONS ARE MADE
FOR ADEQUATE COMBUSTION AND VENTILATION
AIR.
WARNING
IF THE AREA IN WHICH THE HEATER MAY BE
OPERATED IS SMALLER THAN THAT DEFINED AS AN
UNCONFINED SPACE, PROVIDE ADEQUATE COM-
BUSTION AND VENTILATION AIR BY ONE OF THE
METHODS DESCRIBED IN THE NATIONAL FUEL GAS
CODE, ANSI Z223.1, 1992 SECTION 5.3,.
For further information on ventilation guidelines and
sizing specifications, follow the National Fuel Gas
Code/NFPA 54/ANSI Z223.1, Section 5.3.
If the total BTU/hour used by the appliances is less
than the maximum BTU/hr the space can support, the
room meets the Unconfined Space criteria and no
further ventilation is needed.
Option 1 -
Vents to
Adjoining
Rooms Option 3 -
Vents to
Adjoining
Room
Option 2 -
Remove Door to
Adjoining Room
Fig. 2 Supplementing ventilation air.
VO370-2
12”
12”

8
Vermont Castings UVS27
Clearance Requirements
Minimum Clearances to
Combustible Materials
Maintain clearance, (empty space), between combus-
tible materials and the heater as specified for the
appropriate firebox shell being installed.
BAC
D
Freestanding Stove
BAC
D
Hearthmount
B
A
C
D
B
Alcove Clearances
UVS27R/UVS27M Hearth
Requirements
The Freestanding Stove and Hearthmount Shell
must be installed on rigid flooring. If the appliance is
installed on any combustible surface other than
wood flooring, such as carpet or tile, a metal or
wood panel must be installed to extend the full
length and width of the unit.
WARNING
• DO NOT INSTALL THIS HEATER IN A BATH-
ROOM OR BEDROOM.
• INSTALLATION OF THIS HEATER MUST
CONFORM WITH LOCAL CODES OR, IN THE
ABSENCE OF LOCAL CODES, WITH THE
NATIONAL FUEL GAS CODE, ANSI Z223.1.
• THIS HEATER CREATES WARM AIR CUR-
RENTS. THESE CURRENTS MOVE HEAT TO
WALL SURFACES NEXT TO THE HEATER.
INSTALLING THE HEATER NEXT TO VINYL OR
CLOTH WALL COVERINGS OR OPERATING
THE HEATER WHERE IMPURITIES IN THE AIR
SUCH AS TOBACCO SMOKE EXIST, MAY
DISCOLOR WALLS.
• DO NOT USE A BLOWER INSERT, HEAT
EXCHANGER INSERT OR OTHER ACCESSORY
NOT APPROVED FOR USE WITH THIS HEATER.
A: Mantel/Trim* ......... 35”/2” C: Rear Wall................. 0”
B: Side Wall/Trim*..... 2” D: Max. Mantel Width .. 13”
* Trim is 1” thick maximum
A: Ceiling.................. 35” C: Rear Wall ................... 0”
B: Side Wall.............. 2” D: Max. Alcove Depth .... 13”
ST101
ST102
ST103
Mantel Clearances- Freestanding and
Hearthmount
Wall
Stove
5”
10”
15”
20”
25”
30”
35”
13”
11¹⁄₄”
9³⁄₈”
5³⁄₄”
7¹⁄₂””
4”
2¹⁄₄”
2”
1”
FP599a

9 m
Vermont Castings UVS27
Assembly Procedures
WARNING
FAILURE TO POSITION THE PARTS IN ACCOR-
DANCE WITH THESE DIAGRAMS OR FAILURE
TO USE ONLY PARTS SPECIFICALLY AP-
PROVED FOR USE WITH THIS HEATER MAY
RESULT IN PROPERTY DAMAGE OR PER-
SONAL INJURY.
CAUTION
Porcelain enamelled surfaces are fragile.
Handle porcelain enamelled castings tenderly.
Familiarize yourself with the assembly steps
before you begin and proceed with delibera-
tion and care. If possible, have assistance
available.
Place enamelled castings on a soft, cush-
ioned surface until you are ready to assemble.
Avoid contact between the castings and other
hard surfaces or objects.
Shell / Firebox Assembly
1. Assemble side heat shields to both sides of the back
shroud using two (2) sheet metal screws per side.
(Fig. 3) Heat shields are found in the Owner’s
Manual bag assembly.
2. Attach the Back Panel to the Left Side Plate by
aligning the key holes in the shroud with the bolts in
the Side. (Fig. 3) Slide the shroud panel downward
to engage it behind all three washers on the side
plate and then tighten the upper and lower wingbolt.
Refer to the specific assembly instructions for the shell
appropriate to your UVS27R or UVS27M Heater
installation.
NOTE: If you intend to hard-plumb the gas supply line
to the burner, you may wish to install the union or
elbow at the burner control valve inlet before installing
the firebox within the shell.
Also, install the optional Fan Kit on the Freestanding or
Hearthmount before proceeding with this assembly.
Follow the instructions included with the kit.
3. Attach the Right Side Plate to the Back Panel in a
similar manner. Tighten the upper and lower
wingbolt. (Fig. 4) Move this assembly into the final
position and align the two side plates perpendicular
to the Back Panel as in Figure 5.
Wingbolt
Left
Side
Back Panel
Fig. 3 Secure Left Side to the Back Panel.
Heat Shield
Heat
Shield
ST104
Wingbolt
Fig. 4 Secure Right Side to the Back Panel.
ST105

10
Vermont Castings UVS27
4. The Firebox is completely assembled. The Burner and
Valve assembly require no adjustment, however, be
sure to remove the packaged logs from within the
firebox. If you have not yet done so, swing the two
cam latches outward on the screen frame to release it
from the unit. Remove the screen frame by lifting up
and away from firebox. Remove the box of logs from
inside the unit and set aside for later log placement.
5. Connect the gas supply line to the burner control valve
before you install the firebox. This may be a flexible
line, (not supplied), or hard plumbing.
6. Lift the firebox assembly as a unit and slide it back to
position it within the shell. The base of the firebox
should rest on the side support shelves as in Figures
5 and 6. The side plates interlock with the firebox by
use of a pair of steel tabs that engage with the ribs on
the base of the firebox. (Fig. 6) Properly positioned,
the firebox will be level and locked in place. If not,
adjust the levelling screws as required to keep the
entire assembly level.
Install Optional Fan Kit
• Attach the fan to the firebox by engaging the upper
flange of the fan skirt under the lower edge of the
shroud and secure the skirt with the four screws and
one star washer provided. (Fig. 7, 8 )
• Feed the snapstat wire lead up between the inner
and outer rear shroud panels and secure the snapstat
to the upper right side of the inner shroud. (Fig. 9)
• Secure the snapstat wire harness to the shroud
panel using the wire tie provided.
• Route the rheostat control switch and wire forward
under the stove. Use the wire tie to secure the fan and
rheostat wire harnesses together to the tubing under
the bottom heat shield.
UVS27R/ Honeywell Miillivolt Valve: Install the
rheostat onto the control panel at the hole to the right
of the valve, as in Figure 10.
UVS27M/SIT Manual Valve: Install the rheostat onto
the bracket to the left of the valve.
Upper
Flange
Fig. 7 Place upper flange behind lower edge of shroud.
ST344
Fig. 8 Correct position of fan skirt installation.
ST345
Screw & Washer Support Shelf
Side
Plate
Back Panel
Firebox
90°
Fig. 5 The sides must be at right angles to the Back Panel in
order for the firebox to fit properly.
Remote Switch
Knockout
ST106
Fig. 6 Install the Firebox Assembly. Be sure steel tabs engage
ribs on base of firebox.
Steel Tab
Side Plate
Support Shelf
Base
ST125

11 m
Vermont Castings UVS27
Install remote switch (Millivolt valve only)
• Thread wire through the electrical knockout
located on either side of the fireplace. Do not cut the
wire or insulation on metal edges. Ensure that the
wire is protected. Run the other end to a conve-
niently located wall receptacle box.
• Attach the wire to the switch and install the
switchinto the receptacle box. Attach the cover plate
to the switch.
• Connect the remaining ends of the optional switch
to the valve at Terminal 3 and the tab connector on
Terminal 1. (Fig. 12)
NOTE: If any of the original wire as supplied with the
appliance must be replaced, it must be replaced with a
wire of at least 105°F temperature rating.
Connect the gas supply line to the flex or hard pipe
from the control valve as required by local codes.
Install the Log Set
• Remove the logs from their packaging, and inspect
each piece for damage. DO
NOT INSTALL DAMAGED LOGS.
• Install the rear log A, by engaging it with the pins
on the sheet metal shelf at the back of the firebox.
(Fig. 13)
• Install the left and right middle logs, B and C, by
engaging holes on their bottoms with pins on the
burner brackets. (Fig. 13)
• Press the burner assembly fully to the rear, by
hand. Place the two front ember log sections, D and
E, in the slot at the front of the firebox. (Fig. 14)
• Loosely sprinkle the lava rocks directly on top of
the burner between the ember logs and the middle
logs. Do not place any ember material behind the
middle logs. (Fig. 14)
• Engage the socket in the upper right log, F, with the
pin on the right middle log C, as shown in Figure 15.
The back end of log F should rest on log A and touch
the back of the firebox.
• Engage the socket in the bottom of upper left log,
G, with the pin on the left middle log B, as shown in
Figure 15. Rest the back end of log G on top of log
F. Adjust logs F and G to contact the back wall of
the firebox.
Fig. 9 Attach snapstat to inner shroud.
ST346
Control Panel Retaining Nut
Control Knob
Rheostat
Fig. 10 Attach rheostat to control panel.
ST347
MOTOR
SNAPSTAT
ON/OFF
RHEOSTAT
WHT
WHT
BLK
BLK BLK
GRN
BLK
Fig. 11 Fan wiring diagram.
ST236
Fig. 13 Install the back, left and right logs.
C
B
A
ST109
PILOT
ON
OFF
PILOT
ADJ
L
O
H
I
TPTH TH
TP
1
2
3
T'STAT
OFF
ON
TP/TH Terminal
TH Terminal
To Optional GWSK
Wall Switch
Fig. 12 Connecting wall switch to valve terminals.
ST349

12
Vermont Castings UVS27
Complete the Assembly
Replace the screen frame or glass assembly and swing
the fastening cams inward to fasten the assembly in
place.
Grasp the Front Plate by the window bars and lift into
position engaging the two steel tabs behind the adja-
cent bosses in the Side Plates. (Fig. 16) Then seat the
Front against the sides so that the tabs at the bottom lip
engage with the notches in the stove legs.
On the Pinnacle, the Front tabs will engage behind the
notched cutouts in the base of either Side Plate. (Fig.
17)
When properly installed, the bottom of the Front Plate
cannot be pulled away from the sides without lifting it.
NOTE: Be sure that the Control Door can swing out. It
should close against the steel tab stop.
If installing the optional warming shelf, you may find it
most easy to attach it to the Top Plate before placing
the Top in position on the stove. Follow the instructions
supplied with the kit.
Tilt the Top Plate to engage its rear rib in front of the
Back Panel, then carefully lower it onto the sides. (Fig.
18) The upper edge of the side plates should seat into
the channel in the underside of the Top.
Lay the mesh and top grille in place.
This completes assembly of the Stardance Freestand-
ing and Pinnacle Hearthmount shells.
Left Ember Log Lava Rock
Right
Ember
Log
Fig. 14 Install left and right ember strips and lava rocks.
E
D
ST110
Fig. 15 Install the two top logs; engage pins on the middle
logs with the sockets of the top logs.
F
G
A
BC
ST111
Top Plate
Grille
Levelling
Screws
Fig. 18 Install the Top Plate and Grille.
ST114
Bottom Tabs engage
notch in the base
Fig. 17 Engage the Hearthmount Front with the notch in the
base of each side plate.
ST113
Engage steel tabs behind
the cast iron bosses.
Control Door
Fig. 16 Install the Front Plate. Your Front may look different
from that depicted.
Bottom Tabs engage
notch in the leg.
ST112

13 m
Vermont Castings UVS27
Your First Fire
Read these instructions carefully and familiarize
yourself with the burner controls of this heater.
The UVS27R uses a Honeywell control valve that
allows thermostatic, on/off switch regulation and has a
separate Piezo ignition button. Figures 19-21 illustrate
the operating positions for the Honeywell valve.
The UVS27M is equipped with an SIT control valve for
manual use only. Figures 22-24 illustrate the operating
positions for the manual valve.
Locate the Pilot assembly to the right behind the
burner. (Fig. 25) Follow the lighting instructions on page
15 exactly.
During the first fire, it is not unusual to smell some odor
associated with new logs, paint and metal being
heated. Odors should dissipate within a few hours or
so, however, you can open a window to provide plenty
of fresh air to alleviate this condition.
Pilot and Burner Inspection
Each time you light your heater, check that the pilot
flame and burner flame pattern are as shown in Figures
26 and 27. If flame patterns are incorrect, turn the
heater off. See Troubleshooting , page 17.
Do not operate the heater until the pilot flame is correct.
Follow regular maintenance procedures as described
on page 16.
PILOT
ON
OFF
PILOT
ADJ
L
O
H
I
TPTH TH
TP
Fig. 19 UVS27R/Honeywell Control Valve OFF.
HV101b
PILOT
ON
OFF
PILOT
ADJ
L
O
H
I
TPTH TH
TP
PILOT
ON
OFF
PILOT
ADJ
L
O
H
I
TPTH TH
TP
Fig. 20 UVS27R/Honeywell Control Valve in Pilot position.
Fig. 21 UVS27R/Honeywell Control Valve in ON position.
Use this position for remote switch operation.
Piezo
Ignitor
Operation
Fig. 22 UVS27M/SIT Control Valve OFF.
Fig. 23 UVS27M/ SIT Control Valve in Pilot position.
Fig. 24 UVS27M/SIT Control Valve in ON position.
HI
OFF
PILOT
LO
HI
OFF
PILOT
LO
HI
OFF
PILOT
LO
Piezo Ignitor
ST107

14
Vermont Castings UVS27
Lifting Flame
Weak Flame
Fig. 28 Examples of Incorrect Pilot Flame.
ST118
PILOT
ADJ
Pilot
Assembly
Fig. 25 Pilot Assembly Location
ST115
Fig. 26 Proper flame pattern with Regulator in HIGH position.
ST116
Thermopile
Fig. 27 UVS27RN: Correct Pilot Flame.
Pilot Orifice
ST117

15 m
Vermont Castings UVS27
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR EX-
PLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS
OF LIFE.
A. This appliance has a pilot. When lighting the pilot, follow these instructions exactly.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor be-
cause some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
•Do not try to light any gas 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 fire department.
C. Use only your hand to turn the gas control knob. Never use tools. If the knob will not turn by hand, don’t
try to repair it. Call a qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of the control system and any gas control that has been
under water.
LIGHTING INSTRUCTIONS
1. STOP! Read the safety information above on this panel.
2. If applicable, turn thermostat to lowest setting or set remote switch to OFF position.
3. Push in gas control knob slightly and turn clockwise to “OFF” (Fig. 19 or 22)
NOTE: Knob cannot be turned from “PILOT” to “OFF” unless knob is pushed in slightly. Do not force.
4. Wait five (5) minutes to clear out any gas. If you then smell gas, STOP! Follow “B” in the safety information
above on this panel. If you do not smell gas, go to the next step.
5. HONEYWELL: Turn knob on gas control counterclockwise to “PILOT”. Push in control knob all the
way and hold in. Immediately light the pilot by pushing the button located directly to the right of the pilot
knob. 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 3 through 5. (Fig. 20)
5. SIT (Manual Valve): Turn control knob counterclockwise to “PILOT”. Push in control knob all the way
and hold in. Immediately light the pilot by pushing the ignitor button loacted to the left. Continue to hold
the control knob in for about one (1) minute after pilot is lit. Release knob and it will pop back up. Pilot
should remain lit. If it goes out, repeat steps 3 through 5. (Fig. 23)
6. • If knob does not pop up when released, stop and immediately call your service technician or gas sup-
plier.
• If the pilot will not stay lit after several tries, turn the gas control knob clockwise to “OFF:” and
call your service technician or gas supplier.
7. HONEYWELL: Turn gas control knob counterclockwise to “ON”. (Fig. 21)
8. SIT (Manual valve): Turn gas control knob counterclockwise to anywhere between low and high as
you desire. (Fig. 24)
TO TURN OFF GAS TO APPLIANCE
1. Turn off all electric power to the appliance if service is to be performed.
2. Push in gas control knob slightly and turn clockwise to “OFF”.
NOTE: Knob cannot be turned from “PILOT” to “OFF” unless knob is pushed in slightly. Do not force.

16
Vermont Castings UVS27
Your Vent Free Heater will provide years of service with
minimal upkeep. The following procedures will help
ensure that your stove continues to perform safely and
efficiently.
Firebox Cleaning and Inspection
Cleanliness is critical to correct operation of the heater.
The log set, burner, valve controls and air circulation
areas must all be kept free of dust and unobstructed by
debris. Inspect these areas before each use and clean
whenever accumulation is evident. Follow the simple
procedure outlined below.
Frequent cleaning may be necessary in living
environments subject to excessive carpet lint or pet
hair. For example, if you live with a dog that sheds
continuously, you will need to inspect the burner area
frequently and clean it as often as the accumulation
requires. In extreme conditions, it may be necessary to
clean the burner and log set monthly or bi-weekly.
This appliance should be inspected and thor-
oughly cleaned annually by a qualified gas techni-
cian.
Cleaning Procedure
1. Turn the burner OFF and let the heater cool com-
pletely before cleaning.
2. Freestanding or Hearthmount: Lift the Front Plate up
and then swing the bottom out to disengage from
heater shell. (Fig. 16)
3. Remove the safety screen by swinging the cam
latches on the frame outward. (Fig. 29)
4. Carefully inspect the log set for damage. Contact
your local dealer if any damage is evident. DO NOT
OPERATE THE HEATER WITH A DAMAGED LOG
SET.
5. Use a soft-bristled brush vacuum attachment to
sweep dust or debris from the log set, pilot and
burner. Use care as the log set is fragile.
6. Replace the screen and Front Plate. DO NOT
OPERATE THE HEATER WITH THE SAFETY
SCREEN REMOVED.
Care of Cast Iron
An occasional dusting with a dry rag will help keep the
painted surfaces looking new.
Porcelain enamel surfaces shoul be cleaned with a soft
damp cloth. Do not use abrasive cleaning agents. If
necessary, use only a cleaning agent formulated
specifically for use on porcelain enamel surfaces.
PILOT
ADJ
Cam Latches
Fig. 29 Swing Cam Latch to free screen frame and remove
away from unit.
ST119
Maintenance
WARNING
DUST AND DEBRIS ACCUMULATION CAN
RESULT IN POOR PERFORMANCE. INSPECT
THE VALVE COMPARTMENT, BURNER PARTS
AND LOG SET FREQUENTLY AND CLEAN
THESE PARTS MONTHLY OR AS OFTEN AS
ACCUMULATION WARRANTS.

17 m
Vermont Castings UVS27
Troubleshooting
Follow these procedures in the order presented.
WARNING
TURN OFF HEATER AND ALLOW TO COOL
COMPLETELY BEFORE SERVICING.
CONDITION POSSIBLE CAUSE SOLUTION
No spark at pilot when Ignitor is
operated. 1. Ignition Electrode is discon-
nected from ignition wire,
broken or incorrectly positioned.
2. Ignitor wire is broken.
3. Bad Piezo Ignitor.
1. Inspect and re-connect, replace
or repair as necessary.
2. Replace wire.
3. Replace Piezo Ignitor.
The Ignitor Electrode sparks,
but Pilot does not light. 1. Gas supply is turned off or supply
line shut-off valve is closed.
2. Control Knob is not in PILOT
position.
3. Control Knob not pressed in while
in PILOT position.
4. Air present in gas lines.
5. Inlet supply pressure is not within
correct settings.
6. Other conditions that should be
identified only by a qualified gas
technician.
1. Turn on gas supply or open
supply line shut-off valve.
2. Turn Control Knob to PILOT.
3. Press Control Knob in while in
the PILOT position.
4. Continue holding in Control
Knob and repeat ignition
procedure until air is bled from
the lines.
5. Call local gas supplier. Adjust
inlet supply pressure to specifi-
cation: NG; 5” W.C.-
8”W.C.(5”w.c.-7”w.c. at eleva-
tions over 8000 ft.). LP; 11”
w.c.-12”w.c.
6. Call qualified gas technician.
PILOT
ON
OFF
PILOT
ADJ
L
O
H
I
TPTH TH
TP
HI
OFF
PILOT
LO
Pilot /Main Control Piezo Ignitor
Regulator Piezo Ignitor Pilot/Main Control
Fig. 30 UVS27R/Honeywell Control Valve Assembly. Fig. 31 UVS27M/SIT Control Valve Assembly
ST120 ST120

18
Vermont Castings UVS27
Troubleshooting cont’d.
CONDITION POSSIBLE CAUSE SOLUTION
Pilot lights but flame goes out
when Control Knob is released. 1. Control Knob not fully de-
pressed or held in long enough.
2. Gas supply line shut-off valve is
not fully open.
3. Thermocouple connection is
loose at the Control Valve.
4. Pilot flame does not touch the
Thermocouple. (Figs. 31, 32)
This can be caused by:
A) Incorrect gas pressure, and/
or
B) other conditions that should
be identified only by a qualified
service technician.
5. Thermocouple is damaged.
6. Control Valve is damaged.
1. Depress Control Knob fully and
hold in for a full 30 seconds.
2. Fully open gas supply line shut-
off valve.
3. Inspect and tighten securely.
4. A) Contact the local gas
company. Inlet supply pressure
should be 5” w.c.-8”w.c. for NG
(5”w.c.-7”w.c. over 8000 ft.
elevation) and 11”w.c.-12”w.c.
for LP. Adjust as necessary.
B)Call local gas service techni-
cian.
5. Call local gas service techni-
cian.
6. Call local gas service techni-
cian.
Fig. 33 Pilot flame is weak -
does not touch Thermocouple.
Fig. 32 Pilot flame is lifting.
Thermocouple
Fig. 34 Correct LP Pilot Flame -
UVS27M shown Fig. 35 Correct NG Pilot Flame - UVS27R shown.
Pilot lights but Main Burner
does not. 1. Gas supply line shut-off valve is not fully open.
2. Foreign material is blocking
Burner ports.
3. Main Burner orifice is clogged.
4. Thermostat or remote switch
not activated on UVS27R.
5. Bad Thermocouple.
1. Fully open gas supply line shut-
off valve.
2. Insptect and clear debris away
from Burner ports.
3. Call local gas service techni-
cian.
4. Set thermostat to higher tem-
perature or check remote
switch.
5. Call local gas service techni-
cian.
Main Burner shuts off and Pilot
flame goes out while in opera-
tion.
1. Insufficient fresh air.
2. Incorrect inlet supply pressure.
1. Determine that adequate
ventilation exists to provide
sufficient fresh air. Open a
window or provide additional
ventilation. (See Fresh Air
Requirements, Pages 6-7)
2. Contact the local gas company.
Adjust inlet supply pressure to
specification: NG; 5”w.c.-
8”w.c.(5”w.c.-7”w.c. at eleva-
tions over 8000 ft.) LP; 11”w.c.-
12”w.c.

19 m
Vermont Castings UVS27
WARNING
IF YOU SMELL GAS:
•SHUT OFF GAS SUPPLY
•DO NOT TRY TO LIGHT ANY APPLIANCE.
•DO NOT TOUCH ANY ELECTRICAL
SWITCH; DO NOT USE ANY PHONE IN
YOUR BUILDING.
•IMMEDIATELY CALL YOUR GAS SUP-
PLIER FROM A NEIGHBOR’S PHONE.
FOLLOW THE GAS SUPPLIER’S INSTRUC-
TIONS.
•IF YOU CANNOT REACH YOUR GAS
SUPPLIER, CALL THE FIRE DEPARTMENT.
Odor During Operation
Neither natural gas nor propane gas give off an odor
when burned. The nature of a vent free combustion
system, however, is such that odors may occasion-
ally be produced during heater operation when
impurities exist in the immediate area. Cleaning
solutions, paint, solvents, cigarette smoke, candles,
adhesives, new carpet or textiles, etc., all can create
fumes. These fumes may mix with combustion air
and can create odor. Such odors will disappear over
time, however, the condition can be alleviated by
opening a window or otherwise providing additional
ventilation to the area.
UVS27R / Wiring Diagram, Millivolt Valve
T'STAT OFF ON
Thermostat
(Optional)
Thermopile
White
White
Black
Red
Black
TP/TH
TP
TH
Millivolt
Gas Valve

20
Vermont Castings UVS27
Stardance Freestanding Shell
1. UVS27R Firebox Assembly / NG 0002797
UVS27R Firebox Assembly / LP 0002798
UVS27M Firebox Assembly / NG 0002795
UVS27M Firebox Assembly / LP 0002796
2. Rear Shroud Assembly 20001007
3. End, Left 1301240
4. End, Right 1301239
5. Top 30000361
6. Front 1301084
7. Hinge, Control Door 1601670
8. Control Door 1301087
9. Heatshield 1409065
10. Tab, Steel 1601488
11. 1/4-20x3/8” Phillips Screw 1200993
13. Washer, Wingscrew 1202470
16. 1/4-20 Wingscrew 1201621
17. Snap Ring 1201987
18. Levelling Bolt 1201745
19. Screen Frame 20000996
20. Grille 30000393
21. Mesh 30000508
22. Wire Harness 1601913
23. ON/OFF Switch 1601597
Item/Model Number Part Number Item/Model Number Part Number
The Vermont Castings Majestic Products Company reserves the right to make changes in design, materials, specifications, prices and discontinue colors and products
at any time, without notice.
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