Regency Fireplace Products Excalibur P90EX Quick start guide

MODELS: P90EX-NG Natural Gas P90EX-LP Propane
Excalibur®P90EX Zero Clearance
Direct Vent Gas Fireplace
Owners &
Installation Manual
www.regency-re.com
- 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.
REGENCY FIREPLACE PRODUCTS. 6988 Venture St., Delta, BC Canada, V4G 1H4
920-527 08.17.22
Installer: Please complete the details on the back cover and leave this
manual with the homeowner.
Homeowner: Please keep these instructions for future reference.
Certied to/Certié pour: CSA 2.17-2017
ANSI Z21.88-2019
CSA 2.33-2019
Tested by :

2| Regency Excalibur®P90EX Direct Vent Gas Stove
owner's information
To the New Owner:
Congratulations!
You are the owner of a state-of-the-art Excalibur®Gas Fireplace by FPI FIREPLACE PRODUCTS INTERNATIONAL LTD.
The P90EX is a hand crafted appliance and has been designed to provide you with all the warmth and charm of a
wood replace at the ick of a switch. The model P90EX has been approved by Warnock Hersey/Intertek for both
safety and eciency. 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 Excalibur®Fireplace.
920-408
4.34.7
Instruction Plate
For a glass-fronted gas appliance where the temperature of the glass
viewing area outside surface exceeds the limits specified in Clause 5.14.4, the following
graphic danger and statements shall be shown on a Class IIIA-2 Permanent Label.
4.34.6
Instruction Plate
Each appliance shall bear a Class IIIB marking with letters on a contrasting background, located
adjacent to the controlling device or in an equally conspicuous position where the instruction can be easily read.
April 22/14: Created draft
Double sided
Material: Synthetic Paper
Size 5.965" W x 5.71" H
Color: As shown in artwork
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 must be installed for the protection
of children and other at risk individuals.
!DANGER
!
920-408
CAUTION:
HOT WHILE IN OPERATION. DO NOT TOUCH.
SEVERE BURNS MAY RESULT. KEEP CHILDREN, CLOTHING, FURNITURE,
GASOLINE, AND ANY OTHER LIQUIDS WITH FLAMMABLE VAPOURS AWAY.
KEEP BURNER AND CONTROL COMPARTMENT CLEAN.
SEE INSTALLATION AND OPERATING INSTRUCTIONS ACCOMPANYING
APPLIANCE.
Front Back
LA SURFACE VITRÉE CHAUDE
PEUT CAUSER DES BRÛLURES.
NE TOUCHEZ PAS À LA
SURFACE VITRÉE NON REFROIDIE.
NE LAISSEZ JAMAIS UN
ENFANT TOUCHER LA SURFACE
VITRÉE.
DANGER
!
L’écran pare-étincelles fourni avec ce foyer réduit le risque de brûlure en cas de
contact accidentel avec la vitre chaude et doit être installé pour la protection des
enfants et des personnes à risque.
920-408-fr
ATTENTION
S'assurer que le brûleur et le compartiment des commandes sont propres.
Voir les instructions d’installation et d’utilisation qui accompagnent
l'appareil.
Risque de brûlures graves.
Ne pas toucher l’appareil lorsqu’il fonctionne.
Ne pas laisser les enfants s’approcher de l’appareil. Garder les
vêtements, les meubles et tout gaz ou liquide inflammable (carburant)
à distance de l'appareil.

Regency Excalibur® P90EX Direct Vent Gas Stove | 3
INFORMATION FOR MOBILE/MANUFACTURED HOMES AFTER FIRST SALE
This Regency® product has been tested and listed by Intertek as a Direct Vent Wall Furnace to the following standards: to Vented Gas
Fireplace Heaters ANSI Z21.88-2019 • CSA 2.33-2019 and Gas-red Appliances for Use at High Altitudes CSA 2.17-2017.
This Direct Vent System Appliance must be installed in accordance with the manufacturer's installation instructions and the Manufactured Home Construction
and Safety Standard, Title 24 CFR, Part 3280, or the current Standard of Fire Safety Criteria for Manufactured Home Installations, Sites, and Communities
ANSI/NFPA 501A, and with CAN/CSA Z240-MH Mobile Home Standard in Canada.
This appliance installation must comply with the manufacturer's installation instructions and local codes, if any. In the absence of local codes follow the current
National Fuel Gas Code, ANSI Z223.1 and the current National Electrical Code ANSI/NFPA 70 in the U.S.A., and the current CSA B149.1 Gas Installation Code
and the current Canadian Electrical Code CSA C22.1 in Canada.
This Excalibur® Mobile/Manufactured Home Listed appliance
comes factory equipped with a means to secure the unit.
This Excalibur® Mobile/Manufactured Home listed appliance
comes equipped with a dedicated #8 ground lug to which
an 18 gauge copper wire from the steel chassis ground must
be attached.
This appliance may only be installed in an aftermarket
permanently located, manufactured (mobile) home,
where not prohibited by local codes.
This appliance is only 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.

4| Regency Excalibur®P90EX Direct Vent Gas Stove
table of contents
Exterior Vent Termination Locations...................................25
4” x 6-5/8” Rigid Pipe Cross Reference Chart...................... 26
5” x 8” Rigid Pipe Cross Reference Chart............................ 28
Rigid Pipe Venting Systems ...............................................30
Horizontal &Vertical Terminations 4''x6-5/8'' Venting ........... 30
Horizontal & Vertical Terminations for 5''x8'' Venting ........... 31
Rigid Pipe Venting Arrangements - Horizontal Terminations 32
Rigid Pipe Venting Arrangements - Vertical Terminations .... 33
Horizontal Terminations .................................................... 36
Vertical Terminations ........................................................37
Installation Procedures for FPI Direct Vent System.............. 38
Vertical Termination 4" x 6-7/8" Venting - Vertical Flex Vent
Kit (part #946-755).......................................................... 39
Vertical Flue Extension Kit (part #946-756)........................40
Ceiling Firestop / Firestop Spacer (part #946-757).............. 40
System Data ....................................................................41
High Elevation.................................................................. 41
Gas Line Installation.........................................................41
Flame Pattern .................................................................. 41
Gas Pipe Pressure Testing .................................................41
885 SIT Valve Description .................................................41
Conversion from NG to LP ................................................ 42
Optional Brick Panels........................................................ 44
Log Set Installation ..........................................................45
Glass Door Installation......................................................49
Double Door Installation ................................................... 49
Arch Surround and Safety Screen Installation .....................49
Remote Control Wall Mount Holder/Cradle.......................... 50
Wiring Diagram with Optional Wall Thermostat................... 51
Operation
First Fire..........................................................................52
Operating Instructions...................................................... 52
Operation Using an Optional Wall Thermostat..................... 52
Normal operating Sounds of Gas Appliances....................... 53
Maintenance
Maintenance Instructions..................................................53
Flame Pattern .................................................................. 53
Maintenance Instructions..................................................54
Log Replacement .............................................................54
Glass Gasket ....................................................................54
Door Glass.......................................................................54
Glass Replacement ...........................................................54
Fan Maintenance ..............................................................55
Valve Assembly Maintenance.............................................55
Gas Appliance Maintenance...............................................57
Troubleshooting ...............................................................58
Parts List
Main Assembly.................................................................59
Burner Assembly & Log Set...............................................61
Arch Surround and Safety Screen Assembly........................ 62
Warranty
Warranty .........................................................................64
On Demand Pilot (seven day safety timer)
Important information if using the appliance in CPI (continuous
pilot mode) only
This appliance is a Dexen control system tted with the “On Demand”
Pilot, a safety feature which will shut down the gas valve completely
by extinguishing the pilot light in the event of a continuous full seven
days of inactivity.
This only applies if the CPI (continuous pilot) switch is in the “on” posi-
tion in your remote control transmitter.
Each time the main burner shuts down, manually or through the call
from the thermostat, the seven day timer starts again.
The seven day inactivity timer is controlled within the circuit board.
Therefore, if in CPI mode and when the pilot light is extinguished after
seven straight days of inactivity, the CPI setting on the remote control
transmitter will remain in the “CPI” (continuous pilot) position. There-
fore, all that is required to relight the pilot would be to press the power
button on the remote control transmitter from “on” to “o” and back to
“on”. Once the pilot has re-established operation will resume as normal.
There is no requirement to do anything with the IPI/CPI mode on the
remote control transmitter.
If the unit never goes as long as seven full days without a call for heat,
the pilot will remain lit until it is manually shut-o.
If the unit is being operated in IPI (intermittent pilot) mode, neither the
above instructions nor the seven day timer will apply.
See the instructions in this manual and on the Lighting Instructions plate
on the appliance to light or re-light the pilot.
Owner’s Information
Copy of Safety Decal for P90EX ...........................................6
Important Message ..........................................................9
Before You Start.................................................................9
Remote Control Operating Instructions ..............................10
Copy of the Lighting Plate Instructions...............................14
Warranty ...........................................................64
Unit Dimensions.................................................................5
Gas Installation Checklist ....................................................7
General Safety Information ...............................................16
Installation Checklist.........................................................16
Locating Your Gas Appliance ............................................. 17
Manufactured Mobile Home Additional Requirements .......... 17
HeatWave Duct System Optional Kit .................................. 17
Clearances.......................................................................17
Unit Base Standos ..........................................................18
Framing and Finishing ......................................................18
Facing Requirement..........................................................19
Hearth Requirements........................................................ 19
Combustible Mantels .......................................................20
Mantel Leg Clearance .......................................................20
Optional Framing Kit.........................................................21
Wall Mount On/O Switch and Battery Holder Installation ... 22
Unit Assembly Prior To Installation.....................................23
Venting Introduction.........................................................23
Venting - FPI Direct Vent System (Flex) Horizontal Termina-
tions Only ........................................................................24
Installer’s information

Regency Excalibur®P90EX Direct Vent Gas Stove | 5
dimensions
ALL PICTURES / DIAGRAMS SHOWN THROUGHOUT THIS MANUAL ARE FOR ILLUSTRATION PURPOSES ONLY.
ACTUAL PRODUCT MAY VARY DUE TO PRODUCT ENHANCEMENTS.
Unit Dimensions
NOTE
Gas connection is from the righthand side of the appliance & electrical connection on lefthand side of the appliance.
A metal receptacle box is supplied / installed with the appliance to make all 120 volt electrical connections.

6| Regency Excalibur®P90EX Direct Vent Gas Stove
safety decal
This is a copy of the label that accompanies each
P90EX Zero Clearance Direct Vent Gas Fireplace.
We have printed a copy of the contents here
for your review. The safety label is located on
the front inside base of the unit, visible when
the bottom louver is open.
NOTE: Regency®units are constantly being
improved. Check the label on the unit and if
there is a dierence, the label on the unit is
the correct one.
Copy of Safety Decal for P90EX
For the State of Massachusetts, installation
and repair must be done by a plumber or
gastter licensed in the Commonwealth of
Massachusetts.
For the State of Massachusetts, exible con-
nectors shall not exceed 36 inches in length.
For the State of Massachusetts, the appli-
ances individual manual shut-o 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.
DO NOT REMOVE THIS LABEL / NE PAS ENLEVER CETTE ÉTIQUETTE
576
576
DOOR SEAL: Please check that the door is properly sealed
FPI Fireplace Products International Ltd.
Delta, BC, Canada
DUPLICATE SERIAL NO.
Serial No./ No de série
Model/Modèle : P90EX-NG Model/Modèle :
P90EX-LP
Made in Canada/ Fabriqué au Canada
This appliance must be installed in accordance with local codes, if any; if none, follow the National Fuel Gas Code, ANSI Z223.1, or Natural Gas and Propane Installation Code, CSA B149.1.
This appliance must be installed in accordance with the Standard CAN/CSA Z240 MH, Mobile Housing, in Canada, or with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, in the United States, or
when such a standard is not applicable, ANSI/NCSBCS A225.1/NFPA 501A, Manufactured Home Installations Standard or ANSI A119.2 ou NFPA 501C Standard for Recreational Vehicles
This appliance is only for use with the type of gas indicated on the rating plate and may be installed in an aftermarket, permanently located, manufactured (mobile) home where not prohibited by local codes. See owner's manual for
details. Replacement Fan (Part # 910-331/P) Optional Heat Wave Kit # 946-556
Installer l'appareil selon les codes ou règlements locaux, ou, en l'absence de tels règlements, selon les codes d'installation ANSI Z223.1, National Fuel Gas Code ou CSA-B149.1 en vigueur.
Installer l'appareil selon la norme CAN/CSA-Z240, Série MM, Maison mobiles ou CAN/CSA-Z240 VC, Véhicules de camping, ou la norme 24 CFR Part 3280, Manufactured Home Construction and Safety Standard. Si ces normes
ne sont pas pertinentes, utiliser la norme ANSI/NCSBCS A225.1/NFPA 501A, Manufactured Home Installations Standard, ou ANSI A119.2 ou NFPA 501C Standard for Recreational Vehicles.
Cet appareil doit être utilisé uniquement avec le type de gaz indiqué sur la plaque signalétique. Cet appareil peut être installé dans une maison préfabriquée ou mobile (É.-U. seulement) installée à demeure si les règlements locaux
le permettent. Voir le manuel d'utilisation pour plus de renseignements. Cet appareil ne peut pas être utilisé avec d'autres gaz sauf si une trousse de conversion certifiée est fournie.
This vented gas fireplace heater is not for use with air filters. Ne pas utiliser de filtre à air avec ce foyer au gaz à évacuation.
For use with glass doors certified with the appliance only À utiliser uniquement avec les portes en verre certifiées avec l'appareil
(See Instruction Manual for
Detailed Instructions)
Minimum Clearances to Combustibles
Dégagements minimaux par rapport aux matériaux combustibles
0" Clearance to
combustibles from:
Top, bottom, sides & rear of unit
Mantel Clearances from Top:
Min. 19" (483mm)
Side Wall Clearance
from Side Facing
6-1/2" (165mm)
Minimum Vent Clearances:
Horizontal Top 2-1/2" (64mm)
Horizontal Side 1-1/2" (38mm)
Horizontal Bottom 1-1/2" (38mm)
Alcove Clearances:
Max. Depth 36" (914mm)
Min. Width 72" (1829mm),
Min. Height 72" (1829mm)
6-1/2" 6-1/2"
Wall
Wall
19"
44" To Ceiling
NATURAL GAS: Model P90EX-NG
L
Minimum supply pressure
Manifold pressure high
Manifold pressure low
Orifice size
Minimum input
Maximum input
Altitude
5" WC (1.25 kPa)
3.5" WC (0.87 kPa)
1.6" WC (0.40 kPa)
# 34 DMS
23,500 Btu/h (6.89 kW)
35,000 Btu/h (10.26 kW)
0-4500 ft/pi (0-1372 m)
APPAREIL FONCTIONNANT AU GAZ NATUREL
Modèle P90EX-NG
Pression d'alimentation minimale
Pression manifold - haute
Pression manifold - basse
Taille de l’orifice
D bit calorifique minimalé
D bit calorifique maximalé
Altitude
APPAREIL FONCTIONNANT AU GAZ PROPANE
Modèle P90EX-LP
Pression d'alimentation minimale
Pression manifold - haute
Pression manifold - basse
Taille de l’orifice
D bit calorifique minimalé
D bit calorifique maximalé
Altitude
PROPANE: Model P90EX-LP
Minimum supply pressure
Manifold pressure high
Manifold pressure low
Orifice size
Minimum input
Maximum input
Altitude
11" WC (2.74 kPa)
10" WC (2.49 kPa)
6.4" WC (1.60 kPa)
# 51 DMS
25,500 Btu/h (7.47 kW)
31,500 Btu/h (9.23 kW)
0-4500 ft/pi (0-1372 m)
VENTED GAS FIREPLACE HEATER - NOT FOR USE WITH SOLID FUELS. CATEGORY I.
NE PAS UTILISER AVEC UN COMBUSTIBLE SOLIDE. CATÉGORIE I.FOYER AU GAZ À ÉVACUATION -
Part #: 920-528
Colour: Everything black on grey except what is highlighted is printed red.
Material: 2 ml silver matt polyester (DPM SMS)
Size: 100% 9.88’’W x 6.215’’H
May 19/2022: Created decal
ELECTRICAL SUPPLY/ALIMENTATION ÉLECTRIQUE: 115V - 60HZ less than/moins de 2A
For Use Only with Barrier (Part #792-920) Follow installation instructions. Utiliser uniquement avec l’écran (pièce n° 792-920) Suivre les consignes d'installation.
MAY BE INSTALLED IN MANUFACTURED (MOBILE) HOMES AFTER FIRST SALE.
Listed/Nom: VENTED GAS FIREPLACE / FOYER AU GAZ À ÉVACUATION
Certified to/Certifi : é ANSI Z21.88-2019 • CSA-2.33-2019
CSA 2.17-2017
C #: 4001172
Refer to Intertek's Directory of Building Products for detailed information.
Pour plus de détails , se reporter au Répertoire des produits de construction de Intertek.
920-528
CSA P.4.1 Fireplace Efficiency (FE) /Efficacité énergétique des foyers (EEF) CSA P.4.1
Natural Gas / Gaz naturel 71.36%
Propane Gas / Gaz propane 72.79%
CANADIAN ENERGY
PERFORMANCE
VERIFIED
RENDEMENT
ÉNERGÉTIQUE
VÉRIFIÉ
EP5011169
Fold down access door by ipping down 90oonce you
have gained access the rating plate will be located on the
left hand side (see image below).
DO NOT REMOVE DECAL FROM UNIT.
Decal location

Regency Excalibur®P90EX Direct Vent Gas Stove | 7
installation
05/18/21
1
REGENCY GAS INSTALLATION CHECKLIST
Customer: Date Installed:
Install Address: Location of Fireplace:
Serial No: Installer:
Model No:
Site Requirements YES NO
If applicable, are the insulation, vapour barrier, and drywall present if installed on an outside wall or chase?
Does the area have a solid continuous base to support the unit?
Will the area accommodate the size of the applliance and all clearances?
Are the gas and electrical roughed into the area where the unit is being installed?
In City & Grandview series cool wall applications, is the chase enclosure sealed to prevent heat from escaping? All hot air
from the unit must exit via the mandatory ventilation openings.
In City & Grandview applications, Is the chase enclosure vented with the mandatory heat ventilation openings? See manual
for details.
If applicable, is the masonry/factory built freplace in its original condition with no modifications?
If applicable, have the hearth requirements been met?
Unit Setup YES NO
If applicable, are the standoffs and top nailing flange extensions installed and at the correct depth to accommodate finishing
material? See manual for details.
If applicable, is the fireplace level and secured, meeting framing clearances? See manual for details.
If applicable, is the unit converted to top or rear vent per manual instructions, and the insulation discarded?
Venting YES NO
Are the venting components approved for the unit installed?
Does the venting configuration comply with venting diagrams?
Is venting installed and secured, and are clearances for the vent pipe and termination cap maintained?
If applicable, was a 1/4" rise maintained for every foot of horizontal run?
Was the termination installed and sealed?
Is the direct vent termination at the highest point in the vent assembly?
If applicable, are both chimney liners continuous from flue collars to termination?
Electrical and Wiring YES NO
Is the appliance connected to the household's 110/120v per local codes? Check local codes for receptacle placement.
Were the connections in the fireplace tested with a circuit tester?
Is the appliance properly grounded?
If applicable, is the supplied electrical/gang box affixed to the wall to facilitate the mounting of the receiver/battery box ?
Gas YES NO
Does the supply pressure meet the requirements shown on the rating plate?
Was a conversion performed?
Was a leak check performed and manifold pressures verified?
Is the shut-off valve installed and easily accessible to the customer?
This general checklist does not contain all pertinent installation details or specifics and does not supersede the guidelines in this manual. Your
Regency dealer/installer should use it in conjunction with manual instructions. Please follow all local codes and jurisdictions in authority.
Gas Installation Checklist

8| Regency Excalibur®P90EX Direct Vent Gas Stove
installation
05/18/21
2
REGENCY GAS INSTALLATION CHECKLIST
Finishing YES NO
If applicable, is only noncombustible material installed in the noncombustible areas?
Do clearances meet installation and manual requirements?
Do the mantels and/or projections comply with the installation manual?
If applicable, was the solid fuel fireplace warning plate installed?
Appliance Media Setup YES NO
Do commands from the remote or wall switch light the pilot and main burner?
Are the burner media/log set, glass door, and screen installed per instructions in the manual?
Was the air shutter on the proper setting after running the unit for 20 minutes?
If applicable, were the surround and trims installed according to the manual?
Was the operation of the fan, lights (if installed), and flame modulation checked?
Customer Tutorial and Presentation YES NO
Is the customer confident operating the new gas appliance and aware of all the features on the remote?
Confirm that the rating and lighting plates are attached to the appliance. Do not remove.
Was the customer informed of the location of the rating and lighting plates?
Was accessing unit controls in a power outage explained to the customer?
Are the model and serial numbers and the date of installation of the unit written in the manual and on the checklist?
Were the warranty and unit registration reviewed with the customer?
Comments:

Regency Excalibur®P90EX Direct Vent Gas Stove | 9
owner's information
Important Message
SAVE THESE
INSTRUCTIONS
The P90EX-NG or P90EX-LP Direct Vent Fireplace
must be installed in accordance with these
instructions. Carefully read all the instructions in
this manual rst. Consult the "authority having
jurisdiction" to determine the need for a permit prior
to starting the installation. It is the responsibility
of the installer to ensure this replace is installed
in compliance with manufacturer's instructions and
all applicable codes.
Before You Start
Safe installation and operation of this appliance
requires common sense, however, we are required by
the Canadian Safety Standards and ANSI Standards
to make you aware of the following:
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,
ESPECIALLY THE FIREPLACE GLASS,
AND SHOULD STAY AWAY TO 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 IMPERATIVE
THAT CONTROL COMPARTMENTS,
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 RECOM-
MENDED IF THERE ARE AT RISK INDI-
VIDUAL IN THE HOUSE. TO RESTRICT
ACCESS TO A FIREPLACE OR STOVE,
INSTALL AN ADJUSTABLE SAFETY
GATE TO KEEP TODDLERS, YOUNG
CHILDREN AND OTHER AT RISK IN-
DIVIDUALS OUT OF THE ROOM AND
AWAY FROM HOT SURFACES.
ANY SAFETY SCREEN, GUARD,
OR BARRIER REMOVED FOR
SERVICING THE APPLIANCE, MUST
BE REPLACED PRIOR TO OPERATING
THE APPLIANCE.
IF THE BARRIER BECOMES DAMAGED,
THE BARRIER SHALL BE REPLACED
WITH THE MANUFACTURER'S
BARRIER 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

10 | Regency Excalibur®P90EX Direct Vent Gas Stove
owner's information
Remote Control Operating Instructions
05.13.22
1
U39EX
DEXEN Operating Instructions
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING
THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
The TX580 multifunctional remote control was designed for maximum compatibility with
hearth products.
The remote control is designed to control pilot light, ame height, blower speed on your gas
replace. The TX580 is equipped with thermostat functions which can automatically control
the temperature in the room in which it is installed.
The TX580 uses a streamline design with simple button layout and informative LCD display to
keep the interface simple for the user.
PRECAUTIONS
GENERAL PRECAUTION
This control is a precision instrument and should be handled carefully. Rough
handling or distorting components could cause the control to malfunction.
Before operating verify that no gas is in the area surrouding the 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.
CAUTION
To prevent electrical shock and/or equipment damage, disconnect
electric power to system at main fuse or circuit breaker box until
installation is complete.
Label all wires prior to disconnection when servicing control.
Wiring errors can cause improper and dangerous operation. This
control is not intended for use in locations where it may come
in contact with water. Suitable protection must be provided to
shield the control from
exposure to water.
WARNING
Electrostatic discharge can aect electronic components.
Take precautions during installation and service to protect
the electronic controls. Neutralize electrostatic charge before
performing any service procedures.
Do not use on circuit exceeding specied voltage. Higher voltage
will damage control and could cause shock or re hazard.
SPECIFICATION
Supply Voltage: 4.5VDC (three 1.5V AAA batteries)
Ambient Temperature Rating: 0 to 50 ᵒC (32 to 122 ᵒF)
Radio Frequency: 434 MHz
Certication:
IC: 8474A-TX581
FCC ID: UMPTX581 (FCC Rule Part 15.231)
CE: 2112CE33, 2112CE34, 2112CR27, 2111CF23

Regency Excalibur®P90EX Direct Vent Gas Stove | 11
owner's information
05.13.22
2
DISPLAY SCREEN
(NOT AVAILABLE)
(NOT AVAILABLE)
(NOT AVAILABLE)
FUNCTION BUTTONS
Button Function
''Power Button''
Use to turn the unit on and o.
“Flame Button”
Used to change the ame
height setting.
“Fan Button”
Used to change the fan speed
setting.
“Light Button”
Used to change the light
intensity setting.
(Not available)
Button Function
“Mode Button”
Used to access the AUX
component and Split burner.
(Not available)
“Thermostat / Timer Button”
Used to access the Timer,
Thermostat, and the ame
function.
“UP Button”
“Down Button”
Use the UP and DOWN arrow
to
toggle through function and
value selection.

12 | Regency Excalibur®P90EX Direct Vent Gas Stove
owner's information
05.13.22
3
U39EX
OPERATION
This remote is paired with the control module. If this ever requires programming/pairing, refer to this manual to
program/pair the remote control to the ignition control board.
Operation Content:
Temperature Unit Selection
Stand By Mode
Turning On the System
Adjusting Flame Height
Adjusting Fan Speed
Adjusting Light Intensity - NOT APPLICABLE
Automatic Flame Control (Thermostat/Timer)
- Adjusting Thermostat
- Adjust Timer
- Cancelling Thermostat and Timer
Adjusting Split Burner (-P2 Only) - NOT APPLICABLE
Adjusting AUX (-P1 & P2 Only) - NOT APPLICABLE
Child Lock
Continuous Pilot
Programming/pairing the remote to the control module
Temperature Unit Selection:
1. Remove the cover from the back of the remote control.
2. Install 3xAAA battery.
3. Reinstall the cover back to the remote control.
4. Use the “UP Button” and “Down Button” to toggle between ᵒC or
ᵒF on the remote display.
5. Wait ~3s for the program to proceed.
6. On the “ROOM TEMP DISPLAY” the temperature unit will appear.
Standby Mode:
The remote control will enter standby mode if no buttons are pressed
within 1 minute. Press the “Power button” once to escape the standby
mode. Active functions will be displayed.
Turning On the System:
1. Press the “Power button” to turn the system ON.
2. “SIGNAL INDICATOR” will momentarily ash and transmit the
command.
3. The system will ignite the pilot.
4. The system will ignite the main burner.
NOTE
Flame setting is stored in memory. When the system is cycled
from OFF to ON, the main burner will light on high for 10
seconds before returning to the previous ame setting.
NOTE
If unit selection is not performed after installing the battery, the
program will automatically proceed forward after ~3s with the
default temperature unit.
Adjusting Flame Height:
1. Press the “Flame Button” to control the ame height.
2. “FLAME HEIGHT” will ash on the remote display.
3. Use the “Flame Button” to select the ame height between 1 (min)
to 5 (max).
a. “UP Button” & “Down Button” can also be used for selection.
4. Wait ~1s for the command to transmit.
5. “SIGNAL INDICATOR” will momentarily ash and transmit the
command.
Adjusting Fan Speed:
1. Press the “Fan Button” to control the fan speed.
2. “FAN SPEED” will ash on the remote display.
3. Use the “Fan Button” to select the fan speed between 0 (OFF)
to 3 (max). “UP Button” & “Down Button” can also be used for
selection.
4. Wait ~1s for the command to transmit.
5. “SIGNAL INDICATOR” will momentarily ash and transmit the
command.
Automatic Flame Control (Thermostat/Timer):
During automatic ame control, the ame height control on the
“Flame Button” is disabled. To reenable the ame height control the
automatic ame control needs to be disabled.
Adjusting Thermostat:
1. Press the “Thermostat / Timer Button” once to start the
thermostatic function.
2. “SET ICON” and a value on the “TIMER/T-STAT DISPLAY” will ash
on the remote.
3. Select the desired temperature between 45ᵒF to 90ᵒF (7ᵒC to
35ᵒC) by pressing the “Up Button” or “Down Button”.
4. Wait ~1s for the command to transmit.
5. “SIGNAL INDICATOR” will momentarily ash and transmit the
command.
6. “SET ICON” with the selected value on the “Timer/T-STAT Display”
will remain displayed.
NOTES
• If the Timer was set prior to the Thermostat, the “TIMER/
T-STAT DISPLAY” on the remote control will toggle the
display between the Thermostat temperature and the
remaining time on the timer.
• If the Thermostat has been set and needs to be changed,
the Thermostat can be changed by the “UP Button” or
“Down Button” when the “TIMER/T-STAT DISPLAY” has
the “SET ICON” displayed.
Adjusting Timer:
1. Press the “Thermostat / Timer Button” twice to start the timer
function.
2. “TIMER ICON” and a value on the “TIMER/T-STAT DISPLAY” will
ash on the remote.
3. Select the desired timer setting between 15 to 180 minutes in 15
minutes increments by pressing the “Up Button” or “Down Button”.
4. Wait ~1s for the command to transmit.
5. “SIGNAL INDICATOR” will momentarily ash and transmit the
command.
6. “TIMER ICON” with the selected value on the “Timer/T-STAT
Display” will remain displayed.
NOTES
• If the Thermostat was set prior to the Timer, the “TIMER/
T-STAT DISPLAY” on the remote control will toggle the
display between the Thermostat temperature and the
remaining time on the timer.
• If the Timer has been set and needs to be changed, the
timer can be changed by the “UP Button” or “Down Button”
when the “TIMER/T-STAT DISPLAY” has the “TIMER ICON”
displayed.

Regency Excalibur® P90EX Direct Vent Gas Stove | 13
owner's information
05.13.22
4
Cancelling Thermostat/Timer:
1. Press the “Thermostat / Timer Button” to select the “FLAME
HEIGHT” on the remote display.
2. “FLAME HEIGHT” will ash on the remote display.
3. Use the “Flame Button” to select the ame height between 1 (min)
to 5 (max).
4. “SIGNAL INDICATOR” will momentarily ash and transmit the
command.
5. Thermostat and the timer function is cancelled and the “TIMER
ICON”, “SET ICON”, and “Timer/T-STAT Display” are removed from
the remote display.
Child Lock:
To enable the child lock, press and hold the “Up Button” and the
“Down Button” at the same time. The “CHILD LOCK” icon will appear
on the remote display screen and disables all buttons on the remote.
To disable the child lock, press and hold the “Up Button” and the
“Down Button” at the same time. The “CHILD LOCK” icon will be
removed from the remote display screen and enables all buttons on
the remote.
Continuous Pilot:
To enable the continuous pilot, press and hold the “Thermostat
/ Timer Button” and the “Down Button” at the same time. The
“CONSTANT PILOT” icon will appear on the remote display screen
and keep the pilot ame on after shutting down the system.
To disable the continuous pilot, press and hold the “Thermostat
/ Timer Button” and the “Down Button” at the same time. The
“CONSTANT PILOT” icon will be removed from the remote display
screen and turn o the pilot ame when shutting down the system.
Programming/Pairing the remote to the Control Module:
1. Connect the power supply or the battery power to the control
module.
2. Move the "ON/OFF/REMOTE" three-way switch to the "REMOTE"
position.
3. Green LED light will ash three times.
4. Beep will be heard after a ~5s delay.
5. The control module is ready for a command.
6. Use a small item (such as a paper clip) to press and release the
"Pairing Button".
7. Control module will beep once.
8. LED will ash green for 10 seconds.
9. Press the power button on the remote while the LED is ashing.
10. A double beep will be heard from the control module.
11. The remote is now paired to the control module.
Pairing Button
Three-Way Switch
(ON/OFF/REMOTE)

14 | Regency Excalibur®P90EX Direct Vent Gas Stove
owner's information
Copy of the Lighting Plate Instructions
920-521
Part #: 920-521
Colours: Black on Grey, except for parts indicated as being Red.
Punch out .25" hole top right corner where indicated.
Size: 100%
w- 6.52"
h- 11.13"
May 09/22: Created decal
DO NOT REMOVE THIS INSTRUCTION PLATE
NE PAS ENLEVER CETTE ÉTIQUETTE D’INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE / POUR COUPER LE GAZ AU NIVEAU DE L'APPAREIL
CAUTION: Hot while in operation. Do not touch. Severe burns may result. Due to high surface temperatures keep
children, clothing and furniture, gasoline and other liquids having ammable vapors away. Keep burner and control
compartment clean. See installation and operating instructions accompanying appliance.
ATTENTION : Surfaces chaudes lorsque l’appareil est en marche. Ne pas toucher. Risque de brûlures graves. En raison
des températures élevées, les enfants, les vêtements et le mobilier, le carburant et tout autre liquide aux vapeurs
inammables doivent être tenus éloignés de l’appareil. Nettoyer régulièrement le brûleur et le compartiment des
commandes. Voir les consignes d’installation et d’utilisation fournies avec l’appareil.
OPERATING INSTRUCTIONS / CONSIGNES DE FONCTIONNEMENT
FOR YOUR SAFETY READ BEFORE LIGHTING
POUR VOTRE SÉCURITÉ – À LIRE AVANT LA MISE EN MARCHE
WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage,
personal injury or loss of life. Improper installation, adjustment, alteration, service or maintenance can cause
injury or property damage. Refer to the owner’s information manual provided with this appliance. For assistance
or additional information consult a qualified installer, service agency or gas supplier.
AVERTISSEMENT : Le non-respect scrupuleux des instructions de la présente notice risque de déclencher un incendie ou
une explosion pouvant entraîner des dégâts matériels ou des blessures pouvant être mortelles.
Tout défaut d'installation, de réglage, de modication, de service ou d'entretien peut entraîner des blessures ou des dom-
mages matériels. Se reporter au manuel d'utilisation fourni avec cet équipement. Pour obtenir de l'aide ou des informa-
tions complémentaires, consulter un installateur ou un service d'entretien qualié ou le fournisseur de gaz.
A) This appliance is equipped with an ignition device which automatically lights the pilot.
Do not try to light the pilot by hand.
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 try to light any appliance.
- Do not touch any electric switch, do not use any phone in your building.
- Leave the building immediately.
- Immediately call your gas supplier from a neighbours phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call the re department.
C) 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 underwater.
A) Cet appareil est muni d’un dispositif d’allumage qui allume automatiquement la veilleuse.
Ne tentez pas d’allumer la veilleuse manuellement.
B) AVANT LA MISE EN MARCHE, reniez tout autour de l’appareil pour déceler une odeur de gaz. Reniez au niveau du plancher, car certains gaz sont plus
lourds que l’air et peuvent s’accumuler au niveau du sol.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
• Ne tentez pas d’allumer l’appareil
• Ne touchez à aucun interrupteur; n'utilisez pas le téléphone se trouvant dans le bâtiment.
• Quittez immédiatement le bâtiment.
• Appelez immédiatement votre fournisseur de gaz depuis un téléphone extérieur. Suivez les instructions du fournisseur.
• Si vous ne pouvez pas rejoindre le fournisseur, appelez le service incendie.
C) N’utilisez pas cet appareil s’il a été plongé dans l’eau, même partiellement. Faites inspecter l’appareil par un technicien qualié et remplacez tout élément du
système de contrôle ou de commande qui a été plongé dans l’eau.
1) STOP! Lire les instructions de sécurité sur la portion supérieure de cette étiquette.
2) S’assurer que que l'interrupteur va-et-vient du module de commande d'allumage est en position <REMOTE> et que l'interrupteur à
bascule à contact sec/dérogation à distance est en position <OFF/REMOTE>.
3) Si la télécommande est en mode veille, appuyer et relâcher le bouton d'alimentation pour la réveiller. Appuyer et relâcher à nouveau
ce bouton pour un appel de chau󰀨age. Le module de commande d'allumage doit émettre un bip sonore pour conrmer la commande.
Si la télécommande n'est pas utilisée, l'appareil peut également être mis en marche en mettant l'interrupteur à bascule à contact sec/de
dérogation à distance en position <ON/MANUAL> (la télécommande sera désactivée).
4) La valve de la veilleuse s'ouvre et l'allumage (étincelle) démarre (jusqu'à 90 secondes maximum).
5) La amme du brûleur de la veilleuse s'allume et un second bip se fait entendre pour la détection de la amme de la veilleuse.
6) La amme du brûleur principal s'allume.
Remarque : L'essai d'allumage de la veilleuse dure environ 90 secondes. S'il n'y a pas de détection de amme au niveau de la veilleuse
(quatre clignotements rouges sur le module), le système se verrouille. Le système devra être réinitialisé comme suit :
a) Éteindre l’appareil en appuyant sur la touche OFF du bouton d'alimentation de la télécommande.
b) Attendre 5 minutes, puis répéter les étapes 3 à 6.
7) Si l'appareil ne fonctionne pas, suivre les instructions "Pour couper le gaz au niveau de l'appareil" et appeler un technicien qualié ou
votre fournisseur de gaz.
Cet appareil est équipé d'une veilleuse sur demande qui s'éteint après sept jours.
1) STOP! Read the safety information above on this label.
2) Ensure the three-way switch on the ignition control module is in the <REMOTE> position and the dry contact/remote override toggle
switch is in the <OFF/REMOTE> position.
3) If the remote is in sleep mode, press and release the Power Button once to wake it. Press and release the Power Button again to call
for heat. An audible beep should be heard from the ignition control module to conrm command. If not using the remote, the unit
can also be turned on by putting the dry contact/remote override toggle switch to <ON/MANUAL> position (remote will be disabled).
4) The pilot valve will open and the ignition (spark) will start (up to 90 seconds maximum).
5) The pilot burner ame will light and a second beep will be heard for pilot ame detection.
6) The main burner ame will ignite.
Note: Pilot ignition trial will last approximately 90 seconds . If there is no pilot ame detection ( four red ashes on module) the system will
go into lock out. The system will need to be reset as follows:
a) Turn the system OFF by pressing the Power Button on the remote.
b) Wait 5 minutes then repeat step 3 to 6.
7) If the appliance will not operate, follow the instructions, "To Turn O󰀨 Gas to Appliance" and call your service technician or gas supplier.
This appliance is equipped with an on-demand pilot that shuts o󰀨 after seven days.
1) Wake the remote then Press the Power Button to turn the unit o󰀨.
2) If in <ON/MANUAL> mode on the override toggle switch, ip the switch to <OFF/REMOTE>.
3) If service is to be performed, you must disconnect power and shut o󰀨 gas to the unit.
1) Réveiller la télécommande en appuyant sur le bouton d'alimentation pour éteindre l'appareil.
2) Si l'interrupteur à bascule de dérogation est en mode <ON/MANUAL>, basculer l'interrupteur sur <OFF/REMOTE>.
3) En cas d'entretien de l'appareil, débrancher le courant et couper l'alimentation au gaz au niveau de l'appareil.

Regency Excalibur®P90EX Direct Vent Gas Stove | 15
requirements
installer's information
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, butidentifies
"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)

16 | Regency Excalibur®P90EX Direct Vent Gas Stove
installation
Installation
Checklist
1. Locate appliance, refer to the following sections:
a) Locating Your Gas Fireplace
b) Combustible Mantels
c) Unit Base Standos
d) Framing & Finishing
e) Facing Requirements
f) Hearth Requirements
g) Venting
2. Assemble Top Standos, page 9. (Refer to the
"Unit Assembly Prior to Installation" section.)
NOTE: must be done before installing unit into
replace.
3. Install vent, refer to the "Venting" section.
4. Wire 120 volt AC power to the supplied receptacle
box located on the lower lefthand side of the
appliance. The Duplex receptacle and receptacle
cover are included in the manual package.
5. Install the junction box supplied with the
appliance. Install the control module and
AUX300. Hook the power supply of control
module and AUX300 to the junction box to
enable operation of the burner.
6. Make gas connections. Test the pilot. Must be
as per diagram. Refer to the "Pilot Adjustment"
section.
6. Install standard and optional features. Refer
to the following sections where applicable:
7. a. Brick Panels
b. Log Set Installation
c. Arch Surround
d. Glass Door Installation
e. Remote battery box
(See instructions in manual)
Before leaving this unit with the customer, the
installer must ensure that the appliance is ring
correctly and operation fully explained to
customer.
General Safety
Information
1. The appliance installation must conform with
local codes or, in the absence of local codes,
with the current Canadian or National Gas
Codes, CAN1-B149 or ANSI Z223.1 Installation
Codes.
2. The appliance when installed, must be
electrically grounded in accordance with local
codes, or in the absence of local codes with the
current National Electrical Code, ANSI/NFPA 70
or CSA C22.1 Canadian Electrical Code.
3. See general construction and assembly
instructions. The appliance and vent should
be enclosed.
4. This appliance must be connected to the
specied vent and termination cap to the outside
of the building envelope. Never vent to another
room or inside a building. Make sure that the
vent is tted as per Venting instructions.
5. Inspect the venting system annually for
blockage and any signs of deterioration.
6. Venting terminals shall not be recessed into a
wall or siding.
7. Any safety glass removed for servicing must
be replaced prior to operating the appliance.
8. To prevent injury, do not allow anyone who
is unfamiliar with the operation to use the
replace.
9. Wear gloves and safety glasses for protection
while doing required maintenance.
10. Be aware of electrical wiring locations in walls
and ceilings when cutting holes for termination.
11. Under no circumstances should this appliance
be modied. Parts that have to be removed for
servicing should be replaced prior to operating
this appliance.
12. Installation and any repairs to this appliance
should be done by a qualied service person.
A professional service person should be called
to inspect this appliance annually. Make it a
practice to have all of your gas appliances
checked annually.
13.Do not slam shut or strike the glass door.
14. Under no circumstances should any solid fuels
(wood, paper, cardboard, coal, etc.) be used
in this appliance.
15.The appliance area must be kept clear and free
of combustible materials, (gases and other
ammable vapours and liquids).
NOTE
Though this heater does not require
120 volt AC supply for burner operation,
it is recommended as a primary power
source and is required for the blower.
Batteries should only be used as a sec-
ondary power source when power is lost
within the home.
This includes:
1. Clocking the appliance to ensure the correct
ring rate (rate noted on label 35,000 Btu/h)
after burning appliance for 15 minutes.
2. If required, adjusting the primary air to ensure
that the ame does not carbon. First allow the
unit to burn for 15-20 min. to stabilize.
CAUTION: Any alteration to the product that
causes sooting or carboning that results
in damage is not the responsibility of the
manufacturer.

Regency Excalibur®P90EX Direct Vent Gas Stove | 17
installation
Side Wall Clearance 6-1/2" (165mm)
Horizontal Vent Clearances
Top 2-1/2" (64mm)
Side 1-1/2" (38mm)
Bottom 1-1/2" (38mm)
Vertical Vent Clearances 1-1/4" (32mm)
Alcove Clearances**:
Max. Depth 36" (914mm)
Min. Width 72" (1829mm)
Min. Height 72" (1829mm)
* See mantle clearance instructions
(Refer to the "Combustible Mantels" section).
Clearances
The clearances listed are Minimum distances unless
otherwise stated:
A major cause of chimney related res is
failure to maintain required clearances (air
space) to combustible materials. It is of the
greatest importance that this replace and
vent system be installed only in accordance
with these instructions.
Locating Your
Gas replace
1. When selecting a location for your replace,
ensure that the clearances outlined on this
page are met.
2. Provide adequate clearances for servicing.
3. The appliance must be installed on a at, solid,
continuous surface (e.g. wood, metal, concrete).
This may be the oor, or raised up on a platform
to enhance its visual impact. If the appliance is
going to be installed on carpeting, combustible
linoleum tile or other combustible material other
than wood ooring, the appliance must be
installed on a metal or wood panel extending
the full width and depth of the appliance.
4. The P90EX Direct Vent Gas Fireplace
can be installed in a recessed position or
framed out into the room as in A, B, C, D.
See Diagram 1.
Manufactured Mobile Home
Additional Requirements
1. Ensure that structural members are not cut or
weakened during installation.
2. Ensure proper grounding using the #8 ground
lug provided. See the "Wiring Diagram" section.
5. This appliance is Listed for bedroom installations
when used with a Listed Millivolt Thermostat.
Some areas may have further requirements,
check local codes before installation.
6. The P90EX Direct Vent Gas Fireplace is
approved for alcove installations, which meet
the clearances listed on this page.
7. We recommend that you plan your installa-
tion on paper using exact measurements for
clearances and oor protection before actu-
ally installing this appliance. Have a qualied
inspector, dealer, or installer review your plans
before installation.
Note: For vent terminations see the
"Exterior Vent Termination
Locations" section.
Diagram 1
A) Flat on Wall
B) Flat on Wall Corner
C) Recessed into
Wall/Alcove
D) Corner
HeatWave Duct System
Optional Kit #946-556
The HeatWave Air Duct Kit increases the
eectiveness of your replace by dispersing warm
air from the replace to remote locations in the
same room or other rooms in your home.
Up to two kits may be installed on the replace.
Please Note: Only 1 HeatWave kit may be operated
at one time. This includes the internal blower
option as well.
WARNING:
Fire hazard is an extreme risk if
these clearances are not adhered
to.
Clearances for HeatWave Kit
The HeatWave Duct Kit has dierent
clearance and framing requirements, check
the HeatWave manual for details.
Clearance to Combustibles from:
Back 0" (0mm)
Side 0" (0mm)
Floor 0" (0mm)
(below rebox base)
NOTE: The minimum oor clearance must
be maintained from the top surface of
the carpeting, tile, etc.
See Hearth Requirements in this manual.

18 | Regency Excalibur®P90EX Direct Vent Gas Stove
installation
Framing and Finishing
1. Determine the total thickness of facing
material (e.g. drywall plus ceramic tiles) to
allow the nished surface to be ush with the
front of the unit. Total facing thickness can
vary from 1/2" (13mm) to 3-3/8" (86mm)
thick.
2. Frame in the enclosure for the unit with
framing material. The framed opening is
45-1/4" high(46-3/8" - if using base
standos) x 46-1/2" wide x 21-1/2" deep
(1149mm high x 1181mm wide x 546mm
deep).
3. For exterior walls, insulate the enclosure to
the same degree as the rest of the house,
apply vapour barrier and drywall, as per local
installation codes. (Do not insulate the
replace itself.)
Unit Base Standos
To accommodate varying thicknesses and nishes
of hearth materials, we have increased the overall
height of the appliance by a further 1 1/8”. This
increase is added with the inclusion of two stand-
os at the bottom of the unit, below the outer box,
taking the overall height of the framing dimensions
from 45-1/4” up to 46-3/8”.
In the event that you should choose to use thinner
materials to nish the hearth, you can omit the
standos provided for raising the unit. However, we
recommend that you leave the framing dimensions
as they are in the manual and alter only the facing
requirement by reducing it by the same distance
that you have lowered the unit.
Insert the 2 unit base standos underneath
the unit as shown in the diagram below. Space
the standos centrally, approximately 2 or 2-1/2
feet apart. Ensure that the unit is not unstable.
Install Top Standos & Side Nailing Strips
before unit is slipped into position. See
the "Unit Assembly Prior to Installation"
section for assembly details.
Framing Dimensions
A B C D
46-1/2"
1181mm
45-1/4"
1149mm 21-1/2" 546mm 53-3/4" 1365mm
*46-3/8"
1178mm
*If raised 1-1/8" using base standos.
Note: After unit is framed in, steel studs can
be used inside of the wood framing to attach
the noncombustible material. An optional steel
stud framing kit is available for this purpose–see
manual for details. If choosing not to purchase
this kit, steel studs can be used in place–to
attach the non combustible material. Use the
optional steel stud kit instructions as a guide.

Regency Excalibur®P90EX Direct Vent Gas Stove | 19
installation
Fireplace
Stand
No hearth is
required when
the unit is
raised
3" (76mm) offof
the floor surface
Flooring
Hearth Requirements
Floor Mounted Fireplaces
Raised Fireplaces
Facing Requirement
This replace requires a non-combustible material extending from the
framing header and sides.
The anges on the front face of the replace are for a facing thickness
of 3-3/8" (86mm).
Facing Over 3-3/8" (86mm) Thick
If the facing material is over 3-3/8" (86mm) thick (example: brick or river
rock), install the facing around the perimeter of the face. You may wish to
make a face template as shown on the diagram.
Note:The template should be slightly larger than the actual surround itself to
accommodate the removal of the surround when having this serviced. The
surround when tted must be lifted up and out in order to remove it.
Regency provides a template
on the box.
NOTE: If using a brick hearth,
the replace will need to be
raised to accommodate the
brick thickness. Example: If the
brick is 2" thick, the unit must
be raised 1".
Note: 48" (1219mm)
is the minimum
height for both
ex termination or
Rigid Pipe venting.
4. Note: The unit does not
have to be completely
enclosed in a chase.
The clearance on top
of the unit is 0" to the
standos so combustible
building materials can
be laid directly on top of
the standos. You must
maintain clearance from
the vent to combustible
materials for both
rigid and ex, see the
"Clearances" section.
You must take into account
the depth of the oor covering
(carpet, tile, linoleum, etc.)
when determining the height
of the replace stand.
The HeatWave Duct Kit has dierent
clearance and framing requirements, check
the HeatWave manual for details.
Please note that all vertical measurements are taken from
the base of the unit excluding risers or bottom stand-os.

20 | Regency Excalibur®P90EX Direct Vent Gas Stove
installation
Combustible Mantels
Because of the extreme heat this replace emits, the mantel clearances are critical. Combustible mantel clearances from top of unit are shown
in Diagram below.
Mantel Leg Clearance
Note: A non-combustible mantel may be installed
at a lower height if the framing is made
of metal studs covered with a non-
combustible board. The non-combustible
mantle when installed at a lower overall
height may not be lower than 6 inches from
the top of the replace opening.
Mantel can be installed anywhere in shaded area or higher
using the above scale.
Note: Ensure the paint that is used on the mantel
and the facing is "heat resistant" or the
paint may discolour.