Regency Fireplace Products Energy U31-NG10 Repair manual

FPI FIREPLACE PRODUCTS INTERNATIONAL LTD. 6988 Venture St., Delta, BC Canada, V4G 1H4
919-435
MODELS: U31-NG10 Natural Gas U31-LP10 Propane
12.23.15
Energy™U31 Gas Insert
Owners &
Installation Manual
www.regency-re.com
Tested by:
Installer: Please complete the details on the back cover
and leave this manual with the homeowner.
Homeowner: Please keep these instructions for future reference.
U31 Video
- 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 neighbour'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
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious
injury, death, or property damage.

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TO THE NEW OWNER
Congratulations! You are the owner of a state-of-the-art Gas Insert by FPI.
The FPI Gas Insert Series of hand crafted appliances has been designed to provide you with all the warmth and charm
of a fireplace, at the flick of a switch. The models U31-NG10 and U31-LP10 of this series have been approved by
Warnock Hersey/Intertek for both safety and efficiency. As it also bears our own mark, it promises to provide you with
economy, comfort and security for many trouble free years to follow. Please take a moment now to acquaint yourself
with these instructions and the many features of your FPI Fireplace.
U31 Video

Regency U31-10 Gas Fireplace Insert | 3
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table of contents
CONTENTS
Dimensions with Standard Faceplate ...........................................4
Dimensions with Low Profile Faceplate ........................................5
Safety label for the U31-10 ...........................................................6
Ma code - co detector ...................................................................7
For your safety ..............................................................................8
important: save these instructions ................................................9
Specifications ...............................................................................9
Policy for solid fuel burning and factory built fireplaces ................9
Before you start ............................................................................9
Installation checklist ......................................................................10
Materials required .........................................................................10
Minimum fireplace Dimensions .....................................................10
Clearances to combustibles ..........................................................10
Combustible mantel clearances in masonry installation ...............11
Conversion from natural gas to propane .....................................12
Gas connection ............................................................................13
High elevation ...............................................................................13
Draft hood connection ..................................................................13
Venting ..........................................................................................13
Gas pressure test .........................................................................13
Gas insert aeration system ...........................................................14
Test for flue spillage ......................................................................14
Optional brick panel ......................................................................14
Log set installation ........................................................................15
Wiring diagram .............................................................................18
Standard faceplate & hearth trim install .......................................19
Flush louver installation ................................................................20
Low profile faceplate installation ...................................................21
Safety screen installation / removal ..............................................23
Optional wall thermostat ..............................................................24
Final check ...................................................................................24
Operating instructions ..................................................................24
First fire .........................................................................................24
Lighting procedure ........................................................................25
Shutdown procedure ....................................................................25
Automatic convection ...................................................................25
Fan operation ................................................................................25
Normal operating sounds of gas appliances ................................25
Copy of the lighting plate instructions ..........................................26
Maintenance instructions ..............................................................27
Log replacement ...........................................................................27
Glass gasket .................................................................................27
Door glass replacement ................................................................27
Fan maintenance ..........................................................................28
Low profile faceplate ....................................................................31
Warranty: limited lifetime ..............................................................35

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4dimensions
UNIT DIMENSIONS WITH STANDARD FACE PLATE

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dimensions
UNIT DIMENSIONS WITH LOW PROFILE FACE PLATE

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For the State of Massachusetts, installation and repair must be done by a plumber or gasfitter licensed in the Commonwealth of
Massachusetts.
For the State of Massachusetts, flexible connectors shall not exceed 36 inches in length.
For the State of Massachusetts, the appliances individual manual shut-off must be a t-handle type valve.
The State of Massachusetts requires the installation of a carbon monoxide alarm in accordance with NFPA 720 and a CO alarm
with battery back up in the same room where the gas appliance is installed.
This is a copy of the labels that accompany each U31-10 Gas Insert. We have printed a copy of the contents here for your review. The safety label is
located on a plate inside the base of the unit visible when the bottom louver is opened.
NOTE: FPI units are constantly being improved. Check the label on the unit and if there is a difference, the label on the unit is the correct one.
SAFETY LABEL FOR THE U31-10

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requirements
5.08: Modifications to NFPA-54, Chapter 10
(2) Revise 10.8.3 by adding the following additional requirements:
(a) 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 finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall
be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is
installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shallobserve that a battery
operated or 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
qualified licensed professionals for the installation of hard wired carbon monoxide detectors
a. 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 floor level.
b. 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 batteryoperated carbon
monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions
shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification 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".
4. 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.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. 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
2. 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.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product
Approved side wall horizontally 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:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - 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 flue gases, but identifies
"special venting systems", the following requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and
2. 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.
(e) 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 equipmentat the completion of
the installation.
MA Code - CO Detector
(for the State of Massachusetts only)

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8installation
CLOTHING OR OTHER FLAMMABLE
MATERIAL SHOULD NOT BE PLACED
ON OR NEAR THE APPLIANCE.
CHILDREN AND ADULTS SHOULD BE
ALERTED TO THE HAZARDS OF HIGH
SURFACE TEMPERATURES, ESPE-
CIALLY THE FIREPLACE GLASS, AND
SHOULD STAY AWAYTO AVOID BURNS
OR CLOTHING IGNITION.
INSTALLATION AND REPAIR SHOULD
BE DONE BY AN AUTHORIZED
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 IMPERATIVETHAT
CONTROLCOMPARTMENTS,BURNERS
AND CIRCULATING AIR PASSAGEWAYS
OF THE APPLIANCE BE KEPT CLEAN.
DUE TO HIGH TEMPERATURES, THE
APPLIANCE SHOULD BE LOCATED
OUT OF TRAFFIC AND AWAY FROM
FURNITURE AND DRAPERIES.
WARNING: FAILURE TO INSTALL THIS
APPLIANCE CORRECTLY WILL VOID
YOUR WARRANTY AND MAY CAUSE A
SERIOUS HOUSE FIRE.
YOUNG CHILDREN SHOULD BE CARE-
FULLY SUPERVISED WHEN THEY ARE
IN THE SAME AREA AS THE APPLI-
ANCE. TODDLERS,YOUNG CHILDREN
AND OTHERS MAY BE SUSCEPTIBLE
TO ACCIDENTAL CONTACT BURNS. A
PHYSICAL BARRIERS IS RECOMMEND-
ED IFTHERE ARE AT RISK INDIVIDUAL
INTHE HOUSE. TO RESTRICT ACCESS
TO A FIREPLACE OR STOVE, INSTALL
AN ADJUSTABLE SAFETY GATE TO
KEEP TODDLERS, YOUNG CHILDREN
AND OTHER AT RISK INDIVIDUALS OUT
OF THE ROOM AND AWAY FROM HOT
SURFACES.
FOR YOUR SAFETY
This appliance requires air for proper combustion.
Always provide adequate combustion and
ventilation air. Follow instructions and information
in CSA B149.1 (in Canada) or the National Fuel Gas
Code ANS Z223.1/NFPA (in the USA), regarding
requirements for combustion and ventilation air.
ANY SAFETY SCREEN, GUARD, OR
BARRIER REMOVED FOR SERVICING
THE APPLIANCE,MUST BE REPLACED
PRIORTOOPERATINGTHEAPPLIANCE.
IFTHE BARRIER BECOMES DAMAGED,
THE BARRIER SHALL BE REPLACED
WITHTHEMANUFACTURER'SBARRIER
FOR THIS APPLIANCE.
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

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installation
IMPORTANT:
SAVE THESE INSTRUCTIONS
The Regency Gas Insert must be installed in
accordance with these instructions. Carefully
read all the instructions in this manual first.
Consult the building authority having jurisdic-
tion to determine the need for a permit prior to
starting the installation.
NOTE: Failure to follow the instructions
could cause a malfunction of the
heater which could result in death,
serious bodily injury, and/or prop-
erty damage. Failure to follow these
instructions may also void your re
insurance and/or warranty. This appli-
ance can be used with a thermostat.
FOR YOUR SAFETY
This appliance requires air for proper combus-
tion. Always provide adequate combustion
and ventilation air. Follow instructions and
information in CAN/CGA B149 (in Canada) or
the National Fuel Gas Code ANSI Z223.1 (in the
USA), regarding requirements for combustion
and ventilation air.
SPECIFICATIONS
At pressures over 1/2 psig, the pipe to the unit
must be disconnected.
Gas Input Capacity:
Natural Gas 30,000 Btu/h
Propane 28,000 Btu/h
Fuels: Approved for use with both natural gas,
and propane. Approved as is for use at 0' to 2,000'.
With a field installed conversion kit 0' - 4,500'.
Electrical: 120V A.C. system.
Circulation Fan: Variable speed, 127 CFM.
Log Set: Ceramic fibre, 7 per set.
Vent System: Minimum 4" B-Vent or listed
gas fuel vent liner.
GAS PRESSURE TESTING
The appliance must be isolated from the gas
supply piping system by closing its individual
manual shut off valve during any pressure
testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig. (3.45
kPa). Disconnect piping from valve at test pres-
sures over 1/2 psig (3.45 kPa).
POLICY FOR SOLID FUEL
BURNING AND FACTORY
BUILT FIREPLACES
The FPI U31-10 may be installed and vented into
any solid fuel fireplace that has been installed
in accordance with the National, Provincial and
local building codes and is constructed of non-
combustible materials.
1. Installer must mechanically attach the supplied
label to the inside of the firebox of the fireplace
into which the gas fireplace insert is installed.
WARNING: This fireplace has been con-
verted for use with a gas fireplace insert
only and cannot be used for burning wood or
solid fuels unless all original parts have been
replaced, and the fireplace re-approved by
the authority having jurisdiction.
2. Do not cut any sheet-metal parts of the fireplace,
in which the gas fireplace insert is to be installed.
3. If the factory-built fireplace has no gas access
hole(s) provided, an access hole of 1-1/2"
(37.5mm) or less may be drilled though the
lower sides or bottom of the firebox in a proper
workmanship like manner. This access hole
must be plugged with a non-combustible insula-
tion after the gas supply line has been installed.
4. The fireplace flue damper can be fully blocked
open or removed for installation of the gas
fireplace insert.
5. The fireplace and fireplace chimney must be
clean and in good working order and constructed
of non-combustible materials.
6. The chimney cleanouts must fit properly.
7. Refractory (firebricks), glass doors, screen rails,
screen mesh and log grates can be removed
from the fireplace before installing the gas
fireplace insert.
8. Smoke shelves, shields and baffles may be
removed if attached by mechanical fasteners.
If any part is removed it must not weaken the
structural integrity of the factory built.
9. Trim panels or surrounds shall not seal ventila-
tion openings in the fireplace.
BEFORE YOU START
Safe installation and operation of this appliance
requires common sense, however, we are required
by the Canadian Safety Standards and ANSI Stand-
ards to make you aware of the following:
GENERAL SAFETY INFORMATION
1. The appliance installation must conform with
local codes or in the absence of local codes,
with CAN/CGA B149 (in Canada) or the
National Fuel Gas Code ANSI Z223.1. This
appliance should be installed by a qualified
gas fitter technician only.
2. Installation and repair should be done by a
qualified service person.
3. 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, animal hair, etc. It is imperative that
control compartments, burners and circulating
air passageways of the appliance be kept clean.
4. See general construction and assembly instruc-
tions. This appliance may only be installed in a
vented, noncombustible fireplace.
5. This appliance is Listed for bedroom installa-
tions. In Canada room heaters must be installed
with a Listed Millivolt Thermostat. Some areas
may have further requirements, check local
codes before installation.
6. This unit is not approved for installation into a
mobile home.
7. Always connect this insert to a vent system
venting to the outside of the building envelope.
Never vent to another room or inside a building.
Make sure that the vent is properly sized and is
of adequate height to provide the proper draft.
8. Inspect the venting system annually for blockage
and any signs of deterioration.
9. Any glass removed for servicing must be re-
placed prior to operating the appliance.
10. To prevent injury, do not allow anyone who is
unfamiliar with the operation to use the fireplace.
11. Failure to position the parts in accordance with
the diagrams in this manual or failure to use only
parts specifically approved with this appliance
may result in property damage or personal injury.
12. Due to high temperatures, the appliance should
be located out of high traffic areas and away
from furniture and draperies. Children and
adults should be alerted to the hazards of high
surface temperatures, especially the fireplace
glass and gold trims, 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. Clothing or
other flammable material should not be placed
on or near the appliance.
Emissions from burning wood or gas could
contain chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm.

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10 installation
MINIMUM FIREPLACE
DIMENSIONS
The minimum fireplace dimensions for the FPI gas
fireplace insert are shown in the following diagrams:
8-1/8 ”
Low prole
Standard
Faceplate
INSTALLATION
CHECKLIST
The Regency Gas Insert is installed as listed below.
1. Unit Location - check Clearances to Combus-
tibles.
2. Make the gas connections.
Convert to Propane Gas if necessary.
3. Install the flue or liner to the sliding draft hood.
4. Install Venting. Slide the unit into the fireplace.
Attach draft hood to the insert.
5. Test gas pressure.. Check aeration
6. Test for flue spillage.
7. Install the optional brick panels.
8. Install the log set.
9) Assemble and install the faceplate.
10) Install the glass front.
11) Install Safety Screen, Remote Control and
Optional Wall Thermostat.
12) Final check: Before leaving this unit with the
customer, the installer must ensure that the
appliance is firing correctly. This includes:
a) Clocking the appliance to ensure the
correct firing rate.
b) Adjusting the primary air, if required, to
ensure that the flame does not carbon.
c) Ensuring that the appliance is venting
correctly.
MATERIALS REQUIRED
No electrical power supply is required for the gas
control to operate. A 120 Volt AC power cord is
hooked up to the fan. Plug the 3 wire cord into a
suitable receptacle. Do not cut the ground terminal
off under any circumstances. When connected
with 120 volts, the appliance must be electrically
grounded in accordance with local codes, or in the
absence of local codes, with the current Canadian
Electrical Code CSA C22.1 (in Canada) or with
the current National Electrical Code ANSI/NFPA
70-1987 (in U.S.A.).
CLEARANCES TO
COMBUSTIBLES
From Unit
Sides A 10" / 255 mm
Ceiling B 47.5" / 1205 mm
Mantle C See mantle
clearances
Max. Mantel Depth G 12" / 305 mm
Min. Alcove Width K 48" / 1220 mm
Max. Alcove Depth L 36" / 915 mm
* No Hearth Required
NOTE: This unit is equipped with a heat sensor
thermodisc which will prevent the blower
from operating until the unit reaches the
correct temperature.

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installation
COMBUSTIBLE MANTEL CLEARANCES IN MASONRY INSTALLATION
Clearances for Low Profile Faceplate with Safety Screen Clearances for Standard Faceplate /
Contour Faceplate with Safety Screen

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12 installation
THIS CONVERSION MUST BE DONE BY A QUALIFIED GAS
FITTER IF IN DOUBT DO NOT DO THIS CONVERSION !!
CONVERSION FROM NATURAL GAS TO PROPANE
1) Turn the unit off and allow it to cool to room
temperature.
2) Unplug or disconnect power source to stove.
3) Remove safety screen and glass front (see
manual).
4) Remove logs and brick panels (if installed).
5) Remove the Grate by removing the screws
on each side of the grate.
Remove the 2 screws holding
the grate in position.
Remove the 2 screws,
push Burner Tray to the left, and lift off.
6) Remove the Burner Tray by removing the
screws on each side of the tray. Push the
tray to the left and lift up.
7) Remove burner orifice with 1/2" wrench and
replace with the #52 orifice in the Kit.
8) Turn control knob to the “OFF” position
Burner
Orice
17) Pull off the pilot cap to expose the pilot orifice.
18) Unscrew the pilot orifice with the allen key and
replace with the LP pilot orifice in the kit.
19) Replace Burner Tray and reverse steps 5) to
1).
20) Adjust the burner aeration setting to 3/8" to
3/8" as required for the best flame picture.
Fig. 1
9)Remove the black
protection cap by hand
from the hi-low knob (Fig.1).
Fig.2
12) Flip the screw (Fig. 3).
Fig.4
Fig.3
13) Using the Allen wrench as
shown in Fig.4, rotate the
screw clockwise until snug,
do not overtighten.
10) Insert a 5/32” or 4mm Allen
wrench into the hexagonal
key-way of the screw (Fig. 2),
rotate it counter-clockwise
until it is free and extract it.
11) Check that the screw is clean and if necessary
remove dirt.
WARNING!
Do not over tighten the screw.
Recommended to
grip the wrench by the short side.
14) Verify that if the conversion is from NG to LPG,
the screw must be re-assembled with the red
o-ring visible (Fig. 5).
LPG Configuration
Red o-ring visible
Fig.5
15) Re-assemble the black protection cap
(Fig. 6).
Fig. 6
16) Reverse steps 6 - 1.

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installation
GAS CONNECTION
3) Locate the center point where the vent will
pass through the chimney above the appli-
ance. Move the appliance into the exact
location where it is to be installed. Ensure
that the Insert is level.
4) The installer must provide a valve with a
plugged tapping, accessible for test gauge
connection, immediately upstream of the
gas supply connection to the appliance.
HIGH ELEVATION
This unit is approved in Canada for altitude 0 to
2000 ft. with the orifice supplied. For 0' - 4500'
use the optional field conversion kit (Part #400-
970 for Natural Gas units and Part #400-971 for
Propane units). In USA refer to ANSI Z223.1-
1988, Appendix F, for re-sizing orifice.
GAS CONNECTION WARNING:
Only persons licensed to work
with gas piping may make the
necessary gas connections to
this appliance.
1) If the appliance is to be installed into an
existing chimney system, thoroughly clean
the masonry or factory built fireplace.
2) The appliance is provided with an opening on
the left hand side of the control compartment.
A 1/2" gas supply pipe must be brought near
this inlet hole. (See Diagram 3 on page 11).
NOTE: Final gas connection should be after unit
is in place to avoid damage to line when
pushing the unit into position.
Diagram 1
WARNING: Operation of this appli-
ance when not connected to a prop-
erly installed and maintained venting
system or tampering with the blocked
vent shutoff system can result in
carbon monoxide (CO) poisoning and
possible death.
Combustion and Ventilation Air
WARNING: This appliance needs
fresh air for safe operation and must
be installed with provisions for ad-
equate combustion and ventilation
air available to the room in which it
is to be operating.
Follow CAN/CGA B149 (in Canada) or ANSI Z223.1
(in the USA) requirements, and any local codes or
regulations of the enforcing authority.
Air for combustion is drawn in through the front
of the unit, therefore, the front of the unit must be
kept clear of any obstructions.
GAS PRESSURE TEST
The unit is preset to give the correct gas input at the
specified manifold pressures shown on the label.
The maximum gas manifold pressure is:
Natural Gas 3.5" w.c.
Propane 10" w.c.
The manifold pressure is controlled by a regulator
built into the gas control, and should be checked at
the pressure test point. The pressure check should
be carried out with the unit burning and the setting
should be within the limits specified.
Flue
Drafthood
Draft Check Tube
Drafthood
Locking Tab
Drafthood Guides
Outer Shell Top
Shown Partly
Transparent
VENTING
This appliance is designed to attach to a 4" diam-
eter type B-Vent or listed gas fuel type vent liner
running the full length of the chimney. A minimum
flue height of 12 feet is recommended. B-Vent
must be supported by a vent support - supplied
by vent manufacturer. See chart on this page
for minimum distances from roof.
The Regency Insert incorporates its own internal
draft hood, so no additional external draft hood
is required.
DRAFT HOOD
CONNECTION
1) Attach the vent to the flue collar on the detach-
able draft hood. The flue collar of the appliance
will fit inside a standard vent and may be fas-
tened directly to the vent by sheet metal screw.
Diagram 1.
2) Before pushing the appliance into position
inside the fireplace, align the draft hood with
the guides on the insert top and pull forward.
While pushing the unit back into place, keep
pulling the draft hood forward until the screw
hole in the spill tube aligns with the screw hole
in the draft hood locking tab on the underside
of firebox top. The screw is secured through the
draft hood locking tab into the front of the spill
tube. (If screw holes do not line up then draft
hood is not positioned correctly.
Periodically check that the vent is unrestricted and
an adequate draft is present when the unit is in
operation. (See page 8 for spillage test.)
Before installing vent system ensure that the damper
plate is open and secure to prevent the damper plate
from falling down and crushing the liner.

14 | Regency U31-10 Gas Fireplace Insert
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14 installation
Diagram 1
The smoke should be drawn into the spill tube. If
the smoke is still not drawn into the spill tube, turn
the unit off and check for the cause of the lack of
draft. If necessary, seek expert advice.
For wind turbulent sites, a wind cap may remedy
the problem.
Note:The thermally activated safety switch will
sense the change in temperature and shut down
the gas valve in the event of a severe downdraft
or a blocked or disconnected vent.The switch
acts as a safety shut-off to prevent a build-up
of carbon monoxide. If the flue is blocked or
has no "draw", the switch will automatically
shut off the supply of gas within 5 - 10 minutes.
Tampering with the switch can result in carbon
monoxide (CO) poisoning and possible death.
If the heater turns off because of lack of draft
during the spillage test,check for the cause and
if necessary, seek expert advice.
The thermally actuated safety switch will auto-
matically reset after it has cooled off.The switch
will continue to cycle until the draft problem is
corrected. DO NOT BYPASS OR DISCONNECT
THIS SWITCH.
OPTIONAL
BRICK PANEL
1. Unwrap the brick pattern panels from the pro-
tective wrapping.
2. Remove the safety screen and glass front if it
is already installed.
3. Put the rear brick panel flat against the back of
the unit.
TEST FOR FLUE
SPILLAGE
A " spillage" test must be made before the
installed unit is left with the customer. Follow
the procedure below:
1. Start all exhaust fans in the home and then
close all external doors and windows in the
house.
2. Light the unit and set controls to maximum.
Turn fan off.
3. After five minutes, test that there is a “pull” on
the flue by placing a smoke match, cigarette
or similar device which gives off smoke, in
front of the spill tube. To ensure a valid test,
place a scrap piece of sheet metal (or other
noncombustible material) between the spill
tube and the upper louver, this will prevent the
natural convection of the unit from interfering
with the test. See Diagram 1.
GAS INSERT AERATION
SYSTEM
The aeration adjustment rod is attached to the air
shutter which is located just above the orifice bracket.
The rod is used to adjust the aeration on the main
burner without having to take the appliance apart.
The burner aeration is factory set but may need
adjusting due to either the local gas supply, air
supply or altitude.
Natural Gas: 3/8" (9.5mm) open
Propane: 3/8" (9.5mm) open
Note: Any damage due to carboning resulting
from improperly setting the aeration
controls is NOT covered under warranty.
Note: Aeration Adjustment should only be
performed by an authorized FPI Installer
at the time of installation or service.
4. Before installing the side brick panels, loosen
the screws for the brick tabs enough so that you
can slide the brick clips on to the screws easily
but that the tabs are secure. For the location
of the side brick tab screws see Diagram 2.
5) Slide brick panel under brick clips, tighten screws
securing clips to complete installation.
Back Panel
Brick clip
Diagram 1
Diagram 2
Diagram 3
Check for proper draft by placing a match close to
the draft check opening. This should be checked
after the unit has been operating for 15 min.

Regency U31-10 Gas Fireplace Insert | 15
| 15
installation
LOG SET INSTALLATION
GAS INSERT
908-783a 03/30/09
U31-2 / IG34
Page 1 of 3
LOG SET INSTALLATION
Read the instructions below carefully and refer to the diagrams. If logs are broken do not use the unit until
they are replaced. Broken logs can interfere with the pilot operation.
The gas log kit contains the following:
a) 02-43 Rear Log
b) 02-45 Front Right Log
c) 02-56 Middle Left Log
d) 02-46 Left Top Log
e) 02-47 Center Log
f) 02-48 Middle Right Log
g) 02-44 Front Left Log
h) 902-154 Embers
i) 902-153 Rockwool
j) 902-179/P Vermiculite
k) 946-669 Platinum Embers
(supplied with packaged manual)
Note: Install Optional Brick Panels prior to installing logs.
1) Carefully remove the logs from the box and unwrap
them. The logs are fragile, handle with care - do not
force into position.
2) Sprinkle the vermiculite around the fi rebox base. Ta ke
some of the embers (approx. 1/3 of the bag) and
sprinkle over the vermiculite.
3) Place Rear Log A)02-43 on the two pins on the rear
log support.
Vermiculite
and embers Vermiculite
and embers
Vermiculite
and embers
Pins on Rear Log Support
4) Place Front Right Log B)02-45 on the two pins as
shown.
A)02-43
B)02-45
The "02" refer numbers (i.e. 02-43) are
molded into the rear of each log.

16 | Regency U31-10 Gas Fireplace Insert
|
16 installation
908-783a 03/30/09
GAS INSERT U31-2 / IG34
Page 2 of 3
Logs D)02-46 and E)02-47 in position.
6) Place the Left Top Log D)02-46 on the pin on Log
C)02-56 and on top of the cutout on Log A)02-43.
7) Place the notch in Center Log E)02-47 over Log B)02-
45 and across the cutout on Log A)02-43.
Cutout
Pin
Cutout
Notch
8) Position notch in Front Right Log F)02-48 on Log
E)02-47 and push the bottom right edge against the
bracket on the burner tray and the front edge of the
rear burner.
Notch
Bracket
D)02-46
E)02-47
F)02-48
C)02-56
A)02-43
B)02-45
A)02-43
B)02-45
E)02-47
Logs A)02-43, C)02-56, and B)02-45 in position
C)02-56
5) Place the Middle Left Log C)02-56 on the two pins as
shown.

Regency U31-10 Gas Fireplace Insert | 17
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installation
GAS INSERT
908-783a 03/30/09
U31-2 / IG34
10) Place the embers and Rockwool on the exposed front
burner tray.
9) Place Front Left Log G)02-44 onto the 2 front pins as
shown.
G)02-44
F)02-48
B)02-4
Bracket
A)02-43
Front edge of
rear burner
Te botto rgt edge of og F ut t nug agant
te bracket and te front edge of te rear burner
Side View
Page 3 of 3
11) Separate platinum embers and place on and around
the embers and rockwool on the burner tray. oid
stacking platinum embers.
12) est re to ensure proper light off makesure ame
ows smoothly from one end of burner to the other. f
there is any ame hesitation check that area for any
blockage of the burner port.
The "02" refer numbers (i.e. 02-43) are
molded into the rear of each log.
A) 02-43 D) 02-46 G) 02-48
C) 02-44 B) 02-56 F) 02-47 E) 02-45

18 | Regency U31-10 Gas Fireplace Insert
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18 installation
WIRING DIAGRAM
This heater does not require a 120V A.C. supply for operation. In case of a power failure, the remote control/thermostat will continue to operate. However, a
120V A.C. power supply is needed for the fan/blower operation.
CAUTION: Label all wires prior
to disconnection when servic-
ing controls. Wiring errors can
cause improper and dangerous
operation.
WARNING: Electrical Grounding Instructions
This appliance is equipped with a three pronged (grounding) 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.
Caution: Ensure that the wires do
not touch any hot surfaces and are
away from sharp edges.

Regency U31-10 Gas Fireplace Insert | 19
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installation
Diagram 4
Diagram 5
Rear View: Trim Assembly
Diagram 2
Diagram 3
Rear View: Faceplate Assembly
Diagram 1
STANDARD FACEPLATE &
HEARTH TRIM INSTALL
1. Lay the faceplate panels flat, face down on
something soft so they don't scratch.
2. Take the top faceplate and align the holes in it with
the holes in the side panels. Using the screws
provided, attach from the top of the panel (the
holes in the top panel are slightly larger than
the holes in the side panel to facilitate easier
installation). Diagram 1.
Hint: Don't tighten the screws down completely at
this point, continue on with steps 3 and 4 and
do a trial fit to the unit. Make any necessary
adjustments and when it fits properly then tighten
down the screws.
Hearth Trim Option: Hearth Trim is an option
that can be used to finish off the installation
when the bottom of the fireplace is higher than
the hearth or to raise the fireplace. Attach the
Hearth Trim to the bottom of the faceplate side
panels with the screws provided. See Diagram
1.
3. Using the connectors provided, join the left side
trim (with the ON/OFF switch) to the top trim.
Diagram 2. Connect the right side trim to the
top trim.
4. Place the trim on the assembled faceplate
panels, aligning the wire connections from the
switches with the notch on the left side panel.
5. Connect the fan switch wires by taking the
black and red wires with the male ends (in
the grey harness) and connect them with the
wire connectors from the fan speed control.
6. Tuck the wires into the faceplate to keep them
away from the insert using the clip provided.
Attach the clip to the rear of the faceplate to
ensure that the wires do not touch the side
of the unit. Diagram 3.
7. The power cord should be run behind the
faceplate panel.
8. Attach the brass trim to the faceplate by
drilling a 1/8" hole through into the faceplate
using the hole in the trim as a guide. Fasten
the trim to the faceplate panels using the
plated screws. Diagram 4.
9. Attach the faceplate panels to the insert
body using the 4 remaining black screws.
Diagram 5.
10. Push the Regency logo plate into the two
holes in the bottom left corner of the face-
plate.