PSG CADDY ALTERNA II User manual

45816A
Printed in Canada 16-11-2017
PSG
250, de Copenhague, Saint-Augustin-de-Desmaures
(Quebec), Canada G3A 2H3
After-sale service: 418-908-8002
E-mail: [e-mail]
Installation and operating instructions
for the CADDY ALTERNA II (PF09010)
pellet furnace
READ THIS MANUAL THOROUGHLY
BEFORE OPERATING THE FURNACE
CERTIFIED ACCORDING TO CAN/CSA B366.1, UL391,
CAN/CSA C22.2 NO.236, UL 1995 by an accredited laboratory.
FURNACE MODELS INCLUDED IN THIS MANUAL
CADDY ALTERNA II PELLET AND 15 kW/20 kW
COMBINATION FURNACE
CONGRATULATIONS!
You have purchased one of the finest pellet or combination furnaces available
on the market. We are confident that your furnace will provide years of comfort
and safe operation.
Please keep this document for future references and quick service
This manual is available for free download on the manufacturer’s web site. It is a
copyrighted document. Re-sale is strictly prohibited. The manufacturer may update this
manual without prior notice and cannot be held responsible for problems, injuries, or
damages arising out of the use of information contained in any manual obtained from
unauthorized sources.

2
•Do not operate your furnace if you smell
smoke coming from it. Turn it off, monitor it, and
call your dealer.
•Keep foreign objects out of the hopper.
•Never use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or similar
liquids to start or “freshen up” a fire in this
furnace. Keep all such liquids well away from
the furnace while in use.
•Do not throw this manual away. This
manual has important operating and
maintenance instructions that you will need at
a later time. Always follow the instructions in
this manual.
•Do not unplug the furnace if you suspect a
malfunction. Turn the furnace off and call your
dealer.
•Do not place clothing or other flammable
items on or near the furnace.
•Never try to repair or replace any part of the
furnace unless instructions are given in this
manual. All other work should be done by a
trained technician.
•The viewing panel must be closed and
latched during operation.
•The furnace will not operate during a power
outage. If an outage does occur, check the
furnace for smoke spillage and open a window if
any smoke spills into the room.
•Do not operate the furnace if the flame
becomes dark and sooty or if the burn pot
overfills with pellets. Turn the furnace off,
periodically inspect it, and call your dealer.
•Disconnect power before performing any
maintenance or repairs on the furnace.
NOTE: Turning the furnace “off” does not
disconnect all power from the furnace.
•Do not touch the hot surfaces of the
heater. Educate all children of the danger of a
high temperature furnace. Young children
should be supervised when they are in the
same room as the furnace.
•Contact your local building officials to obtain
a permit and information on any installation
restrictions or inspection requirements in your
area. Notify your insurance company of this
furnace as well.
•The exhaust system must be completely
airtight and properly installed. All vent
connector joints must be sealed and fastened
in accordance with the pellet pipe
manufacturer's instructions to ensure
consistent performance and avoid smoke and
ash spillage.
•This unit must be properly installed to
prevent the possibility of a house fire. The
instructions must be strictly adhered to. Do not
use makeshift methods or compromise in the
installation.
•Your furnace requires periodic
maintenance and cleaning. Failure to
maintain your furnace may lead to smoke
spillage in your home.
•Allow the furnace to cool before carrying out
any maintenance or cleaning. Ashes must be
disposed in a metal container with a tight lid and
placed on a non-combustible surface well away
from the home structure.
•This furnace is designed and approved
for pelletized fuel only. Any other type of fuel
burned in this heater will void the warranty
and safety listing.
•This furnace must be connected to a 120 V,
15 A 60 Hz electrical circuit breaker panel with a
grounded electrical outlet. Do not route the
electrical cord underneath, in front of, or over
the furnace.
•Stove Builder International Inc. grants
no warranty, implied or stated, for the
installation or maintenance of your
furnace, and assumes no responsibility for
any consequential damage(s).
•The exhaust system should be checked, at
a minimum, at least twice a year for any build up
of soot or creosote.
SAFETY PRECAUTIONS

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TABLE OF CONTENTS
1PELLET OR PELLET/ELECTRIC COMBINATION FURNACES.........................................................................6
2GENERAL INFORMATION ALTERNA II (PF09010)............................................................................................7
2.1 APPLIANCE PERFORMANCE(1)..................................................................................................................7
2.2 GENERAL FEATURES .................................................................................................................................8
3CADDY ALTERNA II TECHNICAL DATA............................................................................................................8
3.1 GENERAL TECHNICAL DATA......................................................................................................................9
3.2 ELECTRICAL INFORMATION –PELLET FURNACE AND ELECTRICAL ELEMENT.................................9
3.2.1 TECHNICAL DATA –OTHER COMPONENTS .......................................................................................9
4SAFETY RULES....................................................................................................................................................9
4.1 GENERAL REQUIREMENTS .......................................................................................................................9
4.2 ODOR FROM THE PAINT...........................................................................................................................10
4.3 ASH DISPOSAL ..........................................................................................................................................10
4.4 CREOSOTE BUILD-UP AND REMOVAL....................................................................................................10
4.5 SOOT AND FLY ASH (FORMATION AND NEED FOR REMOVAL)...........................................................10
4.6 SMOKE DETECTOR...................................................................................................................................10
4.7 DOOR GLASS.............................................................................................................................................10
4.7.1 GLASS SPECIFICATIONS.....................................................................................................................11
4.8 ASH DRAWER............................................................................................................................................11
5APPLIANCE INSTALLATION.............................................................................................................................11
5.1 REMOVING THE HOPPER AND BLOWER ASSEMBLY (IF REQUIRED).................................................11
5.1.1 HOPPER REMOVAL..............................................................................................................................12
5.1.2 BLOWER ASSEMBLY REMOVAL .........................................................................................................13
5.2 UNIT LOCATION AND FIXATION TOTHE FLOOR....................................................................................15
5.3 HOPPER’S LID OPENING..........................................................................................................................16
5.4 CLEARANCES TO COMBUSTIBLE MATERIALS......................................................................................17
5.4.1 FLOOR PROTECTION...........................................................................................................................18
5.4.2 CLEARANCES TO COMBUSTIBLE MATERIALS FOR THE CHIMNEY...............................................19
5.4.3 CLEARANCES TO COMBUSTIBLE MATERIALS FOR THE PLENUMS..............................................19
5.5 PARALLEL INSTALLATION........................................................................................................................19
5.6 SERIES INSTALLATION.............................................................................................................................21
5.7 VENTING SYSTEM.....................................................................................................................................21
5.7.1 GENERAL...............................................................................................................................................21
5.7.2 STANDARDS..........................................................................................................................................21
5.7.3 INSTALLATION CONFIGURATIONS.....................................................................................................22
5.7.4 EQUIVALENT VENT LENGTH (EVL).....................................................................................................23
5.7.5 HORIZONTAL AND VERTICAL VENT CHART .....................................................................................24
5.7.6 PERMITTED TERMINATION LOCATION..............................................................................................25
5.8 COMBUSTION AIR .....................................................................................................................................28
5.9 AIR RETURN DUCTING SUPPORT INSTALLATION ................................................................................29
5.10 INSTALLING THE LINK BOARD BOX AND ELECTRICAL WIRING ..........................................................30
5.11 INSTALLING THE LCD USER INTERFACE...............................................................................................33
5.12 HOT AIR PLENUM TEMPERATURE PROBE CONNECTION (RTD).........................................................34
5.13 WALLTHERMOSTAT WIRING...................................................................................................................35
5.14 ELECTRICAL ELEMENT CONNECTION...................................................................................................36

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5.15 INSTALLATION OF AN AIR-CONDITIONING UNIT...................................................................................37
5.16 HEATPUMP INSTALLATION......................................................................................................................38
5.17 ADD-ON INSTALLATION............................................................................................................................40
6GENERAL INFORMATION.................................................................................................................................41
6.1 OPERATION WARNINGS, CAUTIONS AND RECOMMENDATIONS.......................................................41
6.2 COMBUSTIBLE...........................................................................................................................................43
6.2.1 PROPER FUEL.......................................................................................................................................43
6.2.2 WHERE TO STORE BAGS OF PELLETS.............................................................................................43
7CONFIGURATION AND OPERATING INSTRUCTIONS...................................................................................43
7.1 GENERAL INFORMATION.........................................................................................................................43
7.1.1 LCD TOUCH SCREEN CONTROLS, OPERATION AND CONFIGURATION ......................................44
7.1.2 DESCRIPTION OF EACH MAIN STATUS ICON:..................................................................................45
7.2 SYSTEM CONFIGURATION.......................................................................................................................45
7.2.1 SELECTING THE LANGUAGE AND TEMPERATURE SCALE ( ⁰ F OR ⁰ C)..........................................45
7.2.2 OPTIONS SELECTION ..........................................................................................................................46
7.2.3 PRIORITIZING HEATING SOURCES....................................................................................................46
7.2.4 SETTING THE DISTRIBUTION FAN SPEEDS......................................................................................46
7.2.5 SYSTEM BALANCING ...........................................................................................................................47
7.2.6 CHOOSING THE INPUT BTU................................................................................................................47
7.3 UNIT OPERATION......................................................................................................................................48
7.3.1 ADJUSTING THE COMBUSTION LEVEL (HEAT OUTPUT).................................................................48
7.3.2 COMBUSTION SETTINGS AND PILOT SETTINGS DEPENDING ON FUEL QUALITY......................48
7.3.3 SELECTING THE PILOT CYCLE...........................................................................................................49
7.3.4 START, STOP AND TIME DELAY PARAMETERS ADJUSTMENTS....................................................50
7.3.5 VIEWING STATISTICS...........................................................................................................................50
7.3.6 PURGE SCREW.....................................................................................................................................51
8OPERATING THE FURNACE.............................................................................................................................51
8.1 FIRST STARTUP ........................................................................................................................................51
8.2 EVERYDAY STARTUP...............................................................................................................................51
8.3 GENERAL OPERATION AND ADVICES....................................................................................................52
8.3.1 EARLY SIGNS OF AN OVER-FIRED FURNACE..................................................................................52
8.3.2 RUNNING OUT OF PELLETS................................................................................................................52
8.3.3 REFUELING............................................................................................................................................52
8.3.4 SHUTDOWN PROCEDURE...................................................................................................................52
8.3.5 CHIMNEY FIRES....................................................................................................................................52
9MAINTENANCE...................................................................................................................................................53
9.1 MAINTENANCE OF THE HEAT EXCHANGER AND BAFFLE...................................................................53
9.2 CLEANING THE BAFFLE............................................................................................................................57
9.3 VENTING SYSTEM MAINTENANCE..........................................................................................................58
9.4 ASH REMOVAL AND VACUUM USE .........................................................................................................59
9.5 CLEANING THE BURN POT.......................................................................................................................59
9.6 CLEANING THE DISTRIBUTION BLOWER...............................................................................................60
9.7 CLEANING THE COMBUSTION BLOWER...................................................................................................60
9.8 CLEANING THE EXHAUST BLOWER........................................................................................................60
9.9 MAINTENANCE OF THE PRESSURE SWITCH TAP.................................................................................61
9.10 FILTER........................................................................................................................................................61
9.11 DOOR GASKET MAINTENANCE...............................................................................................................61
9.12 RECOMMENDED MAINTENANCE SCHEDULE........................................................................................62

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10 TROUBLESHOOTING ........................................................................................................................................62
10.1 VALIDATING STATUS................................................................................................................................63
10.2 TESTING COMPONENTS..........................................................................................................................64
10.3 MAIN ERROR CODES, POSSIBLE CAUSES AND SOLUTIONS ..............................................................64
10.3.1 BLOCKED FLUE.....................................................................................................................................65
10.3.2 NO FUEL.................................................................................................................................................66
10.3.3 FAILED IGNITION ..................................................................................................................................67
10.3.4 DEFECTIVE IGNITER FUSE..................................................................................................................68
10.3.5 AUGER FUSE.........................................................................................................................................68
10.3.6 UNIT OVERHEAT...................................................................................................................................69
10.3.7 HOPPER LID OPEN...............................................................................................................................70
10.3.8 POWER LOSS........................................................................................................................................71
10.3.9 COMMUNICATION ERROR...................................................................................................................71
10.3.10 SMOKE SMELL ......................................................................................................................................72
10.3.11 COMBUSTION AIR LACK......................................................................................................................72
10.3.12 THE LCD TOUCH SCREEN DOES NOT LIGHT-UP.............................................................................73
11 REPLACEMENT PARTS ....................................................................................................................................73
11.1 DOOR GLASS.............................................................................................................................................73
11.2 GASKET......................................................................................................................................................73
11.3 THE AUGER MOTOR .................................................................................................................................74
11.4 AUGER REPLACEMENT............................................................................................................................76
11.5 EXHAUST BLOWER REPLACEMENT.......................................................................................................77
11.6 COMBUSTION BLOWER REPLACEMENT................................................................................................78
11.7 DISTRIBUTION BLOWER REPLACEMENT...............................................................................................79
11.8 IGNITER REPLACEMENT..........................................................................................................................80
11.9 ACCESS THE FUSES.................................................................................................................................81
12 EXPLODED VIEWS AND REPLACEMENT PARTS..........................................................................................83
13 GENERAL ELECTRIC DIAGRAM ....................................................................................................................101
14 WIRING DIAGRAM WITH OPTIONAL ELECTRICAL ELEMENT (PA08570/PA08580).................................102
15 LINK BOARD OPTIONS CONNECTIONS .......................................................................................................103
15.1 ELECTRICAL CONSUMPTION ................................................................................................................103
15.2 OUTDOOR PROBE...................................................................................................................................103
15.3 HOT WATER OPTION ..............................................................................................................................104
15.4 24V ADDITIONAL EQUIPMENT ...............................................................................................................104
15.5 AIR CONDITIONING DAMPER.................................................................................................................104
15.6 HUMIDIFIER .............................................................................................................................................105
15.7 HEAT PUMP..............................................................................................................................................105
16 WHY PURCHASE THROUGH AN AUTHORIZED PSG DEALER? ................................................................106
PSG LIMITED LIFETIME WARRANTY (REGULAR)................................................................................................107
PSG LIMITED LIFETIME WARRANTY (PRIVILEGE) ..............................................................................................108

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IMPORTANT NOTE:
THE INSTALLATION OF THIS CENTRAL HEATING SYSTEM MUST BE
PERFORMED BY A QUALIFIED TECHNICIAN. PSG RESERVES ITSELF
THE RIGHT TO VOID ITS WARRANTY OR DENY TECHNICAL ADVICE IF
THE FURNACE HAS NOT BEEN SOLD OR INSTALLED BY A
PROFESSIONAL.
REGISTER YOU WARRANTY ONLINE
To receive full warranty coverage, you will need to show evidence of the date you purchased your furnace.
Keep your sales invoice. We also recommend that you register your warranty online at
http://www.caddyfurnaces.com/en/warranty/
Registering your warranty online will help us track rapidly the information we need on your furnace.
1 PELLET OR PELLET/ELECTRIC COMBINATION FURNACES
The Caddy Alterna II furnace was tested using the guidelines of the CSA B415.1-10 Standard.
To optimize the efficiency of your furnace, here are a few advice you should follow when installing or operating
your Caddy Alterna II.
•Respect the local codes (when in doubt, consult your local dealer);
•Make sure your furnace is installed according to the instructions on the certification label;
•All controls and adjustments must be performed by a qualified technician. The blower speed must
conform to the recommendations of the local construction code concerning static pressure ranges in the
hot air plenum of the furnace.

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2 GENERAL INFORMATION ALTERNA II (PF09010)
2.1 APPLIANCE PERFORMANCE(1)
Fuel type
Wood Pellet (Premium grade or better)(☨)
Recommended heating area[*]
600 to 3,000 ft2(56 to 279 m2)
Hopper capacity
240 lb (90 kg)
Maximum burn time[*]
200 h
Maximum heat input rate(2)
101,000 BTU/h (29.6 kW)
Overall heat output rate (min. to max.)(3)
25,216 BTU/h to 72,447 BTU/h (7.4 kW to 21.2 kW)
Average overall efficiency(4)
67.9 % (HHV)(5)
73.2 % (LHV)(6)
Delivered heat output rate (min. to max.)(7)
22,537 BTU/h to 64,737 BTU/h (6.6 kW to 19.0 kW)
Average delivered efficiency(8)
60.5 % (HHV)(5)
65.0 % (LHV)(6)
Optimum efficiency(9)
82.4%
Burn rate
1.2 lb/h to 11.8 lb/h (0.4 kg/h to 4.4 kg/h)
Average particulate emissions rate(10)(11)
0.442 lb/mmBTU (0.190 g/MJ)
Average CO(12)
15.41 lb/mmBTU (6.63 g/MJ)
Average electrical power consumption(13)
860 W
(1) Values are as measured per CSA B415.1-10, except for the recommended heating area, hopper capacity,
maximum burn time and maximum heat input rate. Results may vary depending on pellet quality, density,
length, and diameter.
[*] Recommended heating area and maximum burn time may vary subject to location in home, chimney draft,
heat loss factors, climate, fuel type, feed rate, fuel level, and other variables. The recommended heated
area for a given appliance is defined by the manufacturer as its capacity to maintain a minimum acceptable
temperature considering that the space configuration and the presence of heat distribution systems have a
significant impact on making heat circulation optimum.
(☨)Grades of pellet fuel are determined by organizations such as Pellet Fuels Institute (PFI), ENplus and
CANplus.
(2) Based on the maximum burn-rate and a dry energy value of pellet at 8,600 BTU/lb.
(3) Overall : Radiated and delivered heat together.
(4) Efficiency based on radiated and delivered heat when allowing cycling from high to low burn to simulate
thermostat demand.
(5) Higher Heating Value of the fuel.
(6) Lower Heating Value of the fuel.
(7) Delivered: Remotely provided to other rooms through ducting.
(8) Efficiency based on delivered heat when allowing cycling from high to low burn to simulate thermostat
demand.
(9) Optimum overall efficiency at a specific burn rate (LHV).
(10) Based on delivered heat output.
(11) This appliance is officially tested and certified by an independent agency.
(12) Carbon monoxide. Based on overall heat output.
(13) Unless stated otherwise, measures were taken directly at the main power source and include all electrical
components present in the appliance.

8
2.2 GENERAL FEATURES
Heating area range*
600 to 3,000 ft2(55 to 280 m2)
Maximum burn time*
200 h
Burn rate**
1.2 lb to 12 lb per hour
Exhaust vent diameter
4 in. (102 mm)
Required type of chimney
Listed to ULC S629 or UL 103 HT (2100 °F) or
Type L chimney UL 641, CAN/ULC S609 and ULC/ORD
C441
Baffle material
Stainless Steel
Alcove installation
Not approved
Mobile home installation‡
Not approved
Appliance weight (without options)
490 lb (222.7 kg)
Shipping weight
573 lb (260 kg)
Blower
Included –1650 CFM –1/2HP/0.373 KW
Filter
Included (20” x 16” x 1”)
* Burn time and heating area may vary subject to location in home, chimney draft, chimney diameter, locality,
heat loss factors, climate, fuel and other variables. The recommended heated area for a given appliance is
defined by the manufacturer as its capacity to maintain a minimum acceptable temperature, considering that
the space configuration and the presence of heat distribution systems have a significant impact on making
heat circulation optimum.
** May vary depending on the pellet density, length, and diameter.
‡Mobile home (Canada) or manufactured home (USA): The US department of Housing and Urban
Development describes “manufactured homes” better known as “mobile homes” as followed; buildings built
on fixed wheels and those transported on temporary wheels/axles and set on a permanent foundation. In
Canada, a mobile home is a dwelling for which the manufacture and assembly of each component is
completed or substantially completed prior to being moved to a site for installation on a foundation and
connection to service facilities and which conforms to the CAN/CSA-Z240-MH standard.
3 CADDY ALTERNA II TECHNICAL DATA
CADDY
ALTERNA II
A
56 ¼”
B
26 ½”
C
47”
D
21 ¼”
E
22”
F
22”
G
29 ¾”
H
16”
FLUE
PIPE
4”

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3.1 GENERAL TECHNICAL DATA
MODEL
DIRECT DRIVE
THEORETICAL
FLOW
TEMP
VAR.
BTU
INPUT
STATIC PRESSURE
FILTER
FAN
MOTOR
SPEED
(CFM)
(OF)
(PELLET)
MIN.
MAX.
(1)
IN.W.C.
CADDY
ALTERNA II
G-10
1/2HP
4*
1650
110
100,000
0,2
0,5
16” x 20” X 1”
Class 2
*INPUT ENERGY POTENTIAL
PILOT MODE
10 000 BTU
SPEED 1
50 000 BTU
SPEED 2
65 000 BTU
SPEED 3
85 000 BTU
SPEED 4
100 000 BTU
3.2 ELECTRICAL INFORMATION –PELLET FURNACE AND ELECTRICAL ELEMENT
MODEL
OUTPUT
(CFM)
TEMP.
VAR. (°F)
BTU/HR
AMPS
TOTAL
BREAKER
REQUIRED
FEEDER
GAUGE
VOLTAGE
SINGLE
PHASE
ELEMENTS
QTY
15 kW
1,650
65
51,180
65
100 amps
4
120/240
3 x 5 kW
20 kW
1,650
75
68,240
85
125 amps
3
120/240
4 x 5 kW
PELLET
1,650
110
100,000
6
15 amps
14
120
N/A
3.2.1 TECHNICAL DATA –OTHER COMPONENTS
Igniter: lda00068, 500 Watts, 120 volts
Fuses: Midget 30 amps Time-Delay (Littelfuse®)
4 SAFETY RULES
4.1 GENERAL REQUIREMENTS
MAKE SURE THE CHIMNEY OUTLET AND THE PIPES ARE CLEAN AND IN GOOD CONDITION.
DANGER: RISK OF FIRE OR EXPLOSION - DO NOT BURN WASTES, GASOLINE, DRAIN OIL, NAPHTHA
OIL, OR FLAMMABLE LIQUIDS OR OTHER UNSUITABLE MATTERS.
DO NOT USE CHEMICALS OR FLUIDS TO START THE FIRE.
WARNING: RISK OF FIRE - DO NOT OPERATE WITH FUEL LOADING OR ASH REMOVAL DOORS OPEN.
HOT WHILE IN OPERATION. KEEP CHILDREN, CLOTHING AND FURNITURE AWAY, CONTACT MAY
CAUSE SKIN BURNS.
WARNING
THE ASH DRAWER AND EXCHANGERS ACCESS PANEL GET VERY HOT WHILE THE FURNACE IS IN
USE AND MUST NOT BE HANDLED WITH BARE HANDS.

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4.2 ODOR FROM THE PAINT
It is normal that smoke and odors emanate from the unit when you first light it. This is due to the paint curing
process. It is recommended to burn the unit at a high rate and ventilate the furnace room and the building until
the odors disappear. The smoke is not toxic. In order to prevent the spread of smoke throughout the
building, this step should be performed before the furnace is connected to the ductwork.
4.3 ASH DISPOSAL
Ashes must be placed in a metal container with a tight-fitting lid. The container should be stored outdoors, well
away from combustible materials. This container should not receive any other type of waste. If the ashes are
meant to be buried in soil, wait until all embers have thoroughly cooled before burying.
4.4 CREOSOTE BUILD-UP AND REMOVAL
When fuel is burned slowly, it produces tar and other organic vapors which, when combined with moisture, form
creosote. The creosote vapors condense in a relatively cool chimney flue. As a result, creosote residues
accumulate on the flue lining.
When ignited, creosote produces an extremely hot fire inside the chimney.
In the first year of use, in order to avoid chimney fires, inspect the chimney system at regular intervals to
determine a cleaning cycle. Depending on the type of pellet used and its quality, a semi-annual cleaning may be
required. A yearly cleaning is mandatory.
If a significant layer of creosote has accumulated, it must be removed immediately to eliminate the risk
of chimney fire.
It is highly recommended to prepare an emergency procedure in case of a chimney fire.
It is recommended to clean the heat exchangers thoroughly at the end of the season in order to prevent
corrosion.
N.B.: In order to obtain the minimum fuel moisture rate and optimize the efficiency of the unit, store the
combustible in a dry place. Do not store fuel or combustible materials within the installation minimum clearances
or the space required to reload the appliance and remove ashes.
4.5 SOOT AND FLY ASH (FORMATION AND NEED FOR REMOVAL)
The products of combustion will contain small particles of fly ash. The fly ash will collect in the exhaust venting
system and restrict the flow of the flue gases. The exhaust venting system should be inspected at least once
every year to determine if cleaning is necessary.
4.6 SMOKE DETECTOR
We highly recommend the use of a smoke detector. It should be installed at least 15 feet (4,57 m) from the
appliance.
4.7 DOOR GLASS
Fly ash will cause the glass to become dirty after a full hopper of pellets has been burned. If you can still see a
fire in the burn pot, you do not need to clean the glass immediately. However, when it becomes difficult to see
the orange glowing produced by the fire, it is time to clean the glass. The frequency at which you clean the
glass will depend on the type of fuel you use and thermostatic demand. You will have to clean it using a wet
cloth and a fireplace cleaner. Clean the glass ONLY when the unit has cooled down. Do not use abrasive
cleanser. Fireplace glass cleaners are available in most home centers and specialty hearth retailers.

11
WARNING: Avoid knocking or scratching the glass. It might crack or break.
Do not operate your furnace with a broken glass, as this could seriously damage your furnace and cause ashes
to be dispersed through the ductwork.
4.7.1 GLASS SPECIFICATIONS
The glass is made of 3/16” (5 mm) thick Pyroceram.
You can purchase a replacement glass from your PSG dealer.
4.8 ASH DRAWER
Your furnace is equipped with an ash drawer to collect ashes produced by the combustion of pellets. The
drawer must not be left open during combustion as this may cause ash dispersion through the ductwork. The
drawer must be emptied regularly. Once clean-up is completed, use an ash vac to carefully remove any
ash around the drawer. Failure to perform this important step may cause ashes to be dispersed through
the ductwork.
5 APPLIANCE INSTALLATION
WARNING: DISCONNECT POWER BEFORE PERFORMING ANY MAINTENANCE OR REPAIRS ON THE
FURNACE.
5.1 REMOVING THE HOPPER AND BLOWER ASSEMBLY (IF REQUIRED)
Should you need to install the furnace in an area that if difficult to access, both the hopper and blower assembly
located at the back of the furnace may be removed. To do so, follow the instructions below.
Also, it is important that the door and the ash drawer be kept closed while the appliance is in
use. Maintain all gaskets in good condition; in case of deterioration contact your dealer for a
genuine replacement gasket.

12
5.1.1 HOPPER REMOVAL
1. Remove the screws
(8) located at the
bottom of the hopper.
Then, slightly
unscrew the vertical
panel screws (4).
2. Disconnect the
hopper switch’s
connector by
removing the right
side panel to access
the connector.
3. After the bottom
screws are removed
and the vertical panel
screws are slightly
unscrewed, gently lift
the hopper to clear
the screws heads
and pull the hopper
towards the back.

13
5.1.2 BLOWER ASSEMBLY REMOVAL
The blower removal is done in three steps:
Step #1: Remove the covers
Remove the blower
box and the feed
motor covers by
removing the screws
(11).
Once all the screws
are removed, slide
the covers assembly
towards the back to
remove it.

14
Step #2: Unplug electrical wires and rubber tube.
Unplug the quick connect (A) and the rubber tube (B) (rubber tube must be put back on the right sensor side).
Unplug the four pellet feeding motors wires (C).
Step #3: Unscrew the blower box.
Unscrew the screws located on each side of the blower box and the four screws located on the front. Slightly lift
the front of the blower box and pull it towards the back to release it.

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5.2 UNIT LOCATION AND FIXATION TO THE FLOOR
The furnace must be installed where outside air supply is sufficient for proper combustion. In airtight houses or
in certain local codes, it might be necessary to install an outside air intake (see Section 5.8: Combustion Air).
Once you have determined the location of the furnace and that clearances to combustible materials are
respected, it is highly recommended to secure the unit to the floor to prevent it from tipping backwards due to the
weight of hopper full of pellets.
The last step consists of installing the coil handle supplied with the owner’s manual to the handle rod.

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5.3 HOPPER’S LID OPENING
The standard hopper’s opening is from the back to the front. However, it is possible to change the opening
direction of the hopper’s lid to facilitate the pellet filling of the hopper depending on the different ducts installation
(chimney, fresh air return, fresh air inlet, etc.). For that, open the hopper’s lid, unscrew the three screws holding
each of the hinges, rotate the lid 180° and put the hinges in place with the holes intended for this purpose at the
back of the hopper using the same six screws removed previously.
Note: When finished, make sure the lid, when closed, rest well on the safety switch.

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5.4 CLEARANCES TO COMBUSTIBLE MATERIALS
N.B. This appliance must be installed according to the instructions on the unit’s certification label.
DO NOT USE MAKESHIFT MATERIALS OR COMPROMISES IN THE INSTALLATION OF THIS
UNIT.
The furnace can be installed on a combustible floor. However, a non-combustible floor protector must
cover all surfaces underneath the furnace. It must be prolonged 18’’ in front of the furnace and 8’’ on
each side of the loading door. The non-combustible floor protector must also cover all surfaces
underneath the chimney connector and extending at least 2’’ on either side of the chimney connector.
The Alterna II furnace’s air return plenum can be connected to a new or to an existing air return
ductwork. In both cases, the minimum clearance to combustible material is 0” (0 mm).
MINIMUM CLEARANCES
A
63"
G
0"
B
4"
J
Note 1*
C
24"
K
24"
D
24"
E
0"
F
2"
DIMENSIONS
H
60" Min.
I
13" Min.
L
7" Min.
M
22" Min. Note 2*
N
22" Min. Note 2*
O
22" Min. Note 2*
* NOTE 1: REFER TO THE CHIMNEY MANUFACTURER’S MANUAL FOR REQUIRED FOR CLEARANCE.
* NOTE 2: THE RECOMMENDED PLENUM DIMENSIONS MUST MATCH THE OPENING ABOVE THE
FURNACE. THE WIDTH (M) OF DUCT MUST EXTEND HORIZONTALLY TO MEET AT LEAST THE VALUE
(H) WHICH IS 60 INCHES OF.
REFERENCES
P
Ceiling
Q
Opposite side wall (room)
R
Back wall
S
Hot air plenum
T
Static pressure measurement point

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VALUES (B) AND (C) CAN BE INVERTED DEPENDING ON THE POSITION OF THE COMBUSTIBLE WALL.
VALUE (C) MEETS THE MINIMUM STANDARD REQUIREMENTS TO PERFORM MAINTENANCE SAFELY.
HOWEVER, WE RECOMMEND A 30" CLEARANCE TO FACILITATE MAINTENANCE OR REPLACEMENT
OF CERTAIN PARTS.
5.4.1 FLOOR PROTECTION
-If the floor is made of non-combustible material,
no floor protector is required.
-If the floor is made of combustible material, a non-
combustible material floor protector is required
(see table below).
FLOOR PROTECTION*
CANADA
USA
A
18" (457 mm)
From door opening
16" (406 mm)
From door opening
B
N/A (USA only)
8" (203 mm)
From door opening
C
8" (203 mm)
N/A (Canada only)
D
8" (203 mm) –Note 1
N/A (Canada only)
E
N/A (USA only)
Note 2
*Steel with a minimum thickness of 0.015" (0.38 mm) or ceramic tiles sealed together with grout. No protection is
required if the unit is installed on a non-combustible floor (ex: concrete).
Note 1: The floor protection at the back of the furnace is limited to the furnace’s required clearance (A) if such
clearance is smaller than 8 inches (203 mm).
Note 2: Only required under the horizontal section of the connector. Must exceed each side of the connector
pipe by at least 2 inches (51 mm).

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5.4.2 CLEARANCES TO COMBUSTIBLE MATERIALS FOR THE CHIMNEY
N.B. THE SIZE OF THE AIR RETURN DUCT SHOULD BE AT LEAST EQUAL TO THE SIZE OF THE AIR
RETURN PLENUM OPENING. THE AIR RETURN DUCT MAY BE INSTALLED AT ZERO CLEARANCE TO
COMBUSTIBLE MATERIAL.
5.4.3 CLEARANCES TO COMBUSTIBLE MATERIALS FOR THE PLENUMS
The plenums installed to the furnaces must be constructed of metal in accordance with NFPA 90B, 2-1.3. The
hot air plenum can be passed through the side wall with 2 inches of clearances around the plenum.
Hot air plenum minimal height.
5.5 PARALLEL INSTALLATION
The installation of the Caddy Alterna II with another furnace using the same ductwork is not allowed in Canada.
This type of installation is only allowed in the United States. The maximum BTU input of the existing oil,
gas, or electric furnace should be equal or higher than the maximum BTU input of the furnace. It is mandatory to
respect minimum clearances between the ductwork and combustible material as if the wood furnace was
installed as a standalone unit. The ductwork and furnace should be adjusted in order to reach a static pressure
of at least 0.20 IN.WC, but not more than 0.50 IN.WC. A back-flow damper should be installed in the hot air
plenum to prevent the hot air to return into the furnace that is not in operation. Depending on your installation
(see examples below), a back-flow damper may be required in each hot air plenum.
CANADA; The installation in parallel i.e. the Caddy Alterna II furnace combined with another, using the same
system of hot air ducts is not allowed in Canada.
UNITED STATES; The installation in parallel i.e. the Caddy Alterna II furnace combined with another, using the
same hot air duct system is allowed in the United States.
Conditional to;
•The maximum input power of the existing gas, oil or electric furnace should be equal or superior
to that of the wood furnace.
•The clearances required for pellet furnace must be respected.
•The clearances between the hot air ducts and combustible materials must meet the highest
values between the two furnaces.
•The necessary adjustments are made to the furnace or hot air ducts to maintain a static
pressure of between 0.20 and 0.50 IN.W.C.
13" min
(330 mm)

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DAMPER
•A backflow damper be installed to prevent air return in one or the other of the two furnaces and
to ensure that hot air will flow into the house and will not return through the plenum of the other
furnace. Depending on your system configuration, it is possible that more than one register is
required to prevent air returns in the different hot air ducts (see examples below).