Owners
ManualMODEL VC120
SOLID FUEL FURNACEFor use as an add-on to electric, gas, or oil furnaces or an
independent wood furnace when equipped with a blower.

SAVE THESE INSTRUCTIONS

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OM-VC120.PUB

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Version 1.04

1Date printed: February 15, 2008

Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

SPECIFICATIONS
Model

VC120

Rating120,000 btu. nominal

HeightWidth
Length50 1/2"
29 1/2"
36"

Flue collar
Flue pipe center to rear
Recommended flue pressure7" I.D.
5 1/2".04" water column (draft)

Hot air plenum opening

22" L x 26" W

Fire door opening

15" x 13"Firebox length
Width
HeightCapacity

27"
17"
32"
8.5 cu. ft.

Fuel length26"

Firebox design features

1) distributed draft system with preheatedprimary air2) Post burn preheated secondary air
3) Brick baffle system to retain highcombustion temperatures

Construction

10 ga. firebox brick lined
10 ga. heat exchanger
24 ga. cabinet
brick baffles

Weight

660 lbs.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

SAFETY PRECAUTIONS Comply with all local codes and regulations.
 Never operate a furnace that has been improperly installed.
 DO NOT USE CHEMICALS OR FLUIDS TO START OR FRESHEN A
FIRE. Keep all flammable fluids well away from the furnace.
 DO NOT BURN GARBAGE, GASOLINE, NAPHTHA, ENGINE OIL, OR
RAGS SOAKED IN THESE FLUIDS.
 Combustible materials, including fire wood, must be stored wellaway from the furnace meeting the distances specified on the label.
 Never operate the furnace unless you are sure the smoke pipe andchimney are in safe condition. Flue gasses may contain carbon
monoxide which is poisonous.
 Keep smoke pipe and chimney clean to prevent a chimney fire. In
the event of a chimney fire turn down all thermostats and close off
combustion air. Call a fire department if necessary. Have a clearly
understood plan to handle a chimney fire.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

Congratulations on your choice of a wood furnace from Valley Comfort. We thank you
for the confidence you have placed in us.
A word about Valley Comfort -- In 1953 when most folks were excited about getting rid of
their wood burning appliances, a determined entrepreneur, Pete Stoopnikoff, was convincedthat he could make a better wood heater. After many years of packing "too much wood", hewas determined to produce a more efficient Canadian heater. He succeeded! That's over 40
years ago and since then Valley Comfort has researched, designed, produced and marketed an
expanding line of fine products. In the late 1970's safety standards were introduced to the industry and our products were some of the first to be approved. Today, all of our heaters andfurnaces are tested and approved to the national standards. We have built our reputation on
quality and are committed to that end when making all of our products.
This instruction booklet provides you with important instructions assuring maximum usage andservice life of your furnace. Please read this booklet thoroughly and save it for future reference. Carefully follow instructions for installation.

OPERATING INSTRUCTIONSLIGHTING THE FIRE
NEVER START A FIRE UNLESS ALL BRICKS AND BAFFLES HAVE BEEN
CORRECTLY INSTALLED IN THE FIREBOX. CHECK THE INSTALLATIONINSTRUCTIONS CAREFULLYTurn up the thermostat to open the draft



NEVER USE FLAMMABLE FLUIDS TO START THE FIRE

On top of crumpled paper place split dry kindling and then small wood. Once you
have a fire going add larger pieces of wood.

High temperature paints will give off an odor the first time you light your furnace.
Open a window to ensure adequate ventilation.



The damper will close when either the plenum temperature reaches the limit levelor the room temperature reaches the thermostat setting.



The circulation blower should cycle off and on automatically, according to plenum
temperature.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

Operations
Draft


Draft is created by the heated air rising in the chimney system. This draft will pull
fresh combustion air into the firebox. Recommended draft is .04 in. w.c. Too little
draft results in a sluggish fire and smoking when the furnace door is opened. Toomuch draft (over .07 in. w.c.) is unsafe and wastes fuel. The damper opening has
been set at the factory and should not be adjusted.



Ashes should be cleaned out when they reach a depth of 4" in the firebox (half way
up the lower bricks). Dispose of ashes in an airtight, metal container and store it
outside away from combustibles.

OPEN THE FIRING DOOR ONLY TO RELOAD FUEL.

Your appliance must be vented by a chimney system suitable for solid fuel fired
appliances and should be checked periodically to insure its safe condition.

Use extreme caution not to over fire during a power failure . Do not fill wood above
the top of the liner bricks. The furnace is designed as a forced air furnace andexcess firing without the blower running will overheat the firebox and damage will

result.


If your furnace is operating as an add-on combination unit remember both units will
not fire at the same time. If wood is to be your main source, set the wood thermostat at your desired room temperature and set the backup thermostat approximately 5 degrees lower.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

OPERATION DURING POWER FAILURE CONDITIONSSAFETY FIRSTYour system was designed as a forced air system; do not expect regular performance
without the fan running. Do not over fire to compensate for the lack of a fan. Yoursystem will perform at approximately 50% capacity in the gravity mode.
During a power failure never fill the firebox above the top of the firebox liner bricks.



Remove the cabinet door from the blower. Remove the air filters and open all registers to facilitate free air flow.

Lift the left manual draft control lever until it "clicks". This will open the draft to a
pre set level, see fig. 1A. (Page 16)When the power returns the damper motor will open and the manual control will
return to normal position. Even without the manual control open the factoryadjusted bleed air system will provide some combustion air. To close the power
failure combustion air lift the right hand lever, see fig 1A. (Page 16)When power is restored replace the blower system, air filters, and door.

Without the blower running, high temperature in the system builds up quickly and overfiring will result in permanent damage to the firebox. Maintain a small fire only. Overfiring voids all product warranties.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

CREOSOTE
Creosote can be a problem In any wood-burning appliance. Creosote is a black, ill
smelling liquid that results from distillation of wood gases during the combustion process. It solidifies depending on temperature and in either state is highly combustible.
The best way to prevent or minimize creosote build up is to follow proper firing methods. The amount of creosote depends on several factors that include:
1) Moisture content of the fuel2) Stack or flue temperature3) Amount of draft
4) Efficiency of the appliance5) Turbulence of smoke.
At stack temperature below 120oC (250oF), the creosote will condense out of the gasses (smoke). Once a flue pipe becomes heavily coated with creosote, the only safe
way to remove it is mechanically with a proper chimney cleaner or brush. A combination of wet fuel and poor operating procedure may necessitate weekly cleaning to remove creosote buildup.
Remember - the hotter the fire the less creosote, Therefore small intense fires create
less creosote than large, smoldering fires. We recommend that each day a small intense fire be built , preferably in the morning. This daily practice should burn out thesmall deposits of creosote before they build to a dangerous level. The draft should be
opened for at least 20 minutes by turning the thermostat up in the morning and evening. NEVER "burn out" large deposits of more than one days accumulation.
Always assure safety by having a clearly understood plan of how to handle a chimney
fire, should one occur.
In conclusion, creosote can best be controlled as follows:
1. Burning dry split wood.
2. Mixing small and large pieces of wood
3. During warm weather using smaller split wood
4. Keeping stack temperature up by using double wall pipe on flue runs andprotect outside chimney installations in a chase. Minimize elbows and keep
flue runs as short as possible and ensure tight connections.
5. Checking daily for creosote until experience shows how often cleaning is required. Remember a clean chimney is a safe chimney.
6. Having a clearly understood plan should a chimney fire occur.

WARNING: FAILURE TO INSPECT AND CLEAN YOUR CHIMNEYSYSTEM REGULARLY CAN RESULT IN A SERIOUS FIRE WHICH MAYDAMAGE YOUR CHIMNEY OR CAUSE A HOUSE FIRE

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

WHAT KIND OF WOOD?
There is an old idea that using some green wood will insure long burn times. THISIS WRONG! Always remember, the dryer the wood the better it is. It takes a great
deal of energy to evaporate the moisture contained in green wood and that energy
will not be heating your house. Also, green or wet wood will greatly increase creosote
problems.
In most cases the harder the wood the more heat. In all cases, the dryer the wood themore heat it products. We recommend at least 12 months drying time, protected fromrain, for split firewood,
Our wood furnaces are not designed for burning coal and doing so will void thewarranty.
Never burn salt-water driftwood. It is very corrosive and will damage the firebox.
Burning salty wood also voids the warranty.
This controlled combustion firebox has been designed for high efficiency and long
burn times. The proper time to add more wood is when the last charge has been reduced to a glowing charcoal bed. There will be very little smoke at this stage in theburn cycle.
WARNING: BURNING WET UNSEASONED WOOD CAN CAUSE EXCESSIVECREOSOTE ACCUMULATION. WHEN CREOSOTE IS IGNITED IT CAN CAUSEA CHIMNEY FIRE WHICH MAY RESULT IN A SERIOUS HOUSE FIRE.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

MAINTENANCE
Maintain fire door gaskets to ensure a tight seal. Use 7/8" replacement gasket.
WARNING:
DO NOT OPERATE THIS WOOD FURNACE IF THE DOOR GASKET IS MISSING
OR DAMAGED. DANGEROUS OVERFIRING CAN OCCUR WHICH CAN DAMAGE
THE APPLIANCE OR IGNITE CREOSOTE IN THE CHIMNEY, POSSIBLY CAUSINGA HOUSE FIRE. IF ANY PART OF THE WOODSTOVE OR FLUE SYSTEM ISGLOWING THE FURNACE IS BEING OVERFIRED.
A broken firebrick should be replaced to prevent warping of the firebox.
OPERATE THE ALTERNATE ELECTRIC, GAS OR OIL FURNACE PERIODICALLYTO ENSURE THAT IT WILL OPERATE SATISFACTORILY WHEN NEEDED.
INSPECT VENT PIPES, VENT PIPE JOINTS AND VENT PIPE SEALS REGULARLYTO ENSURE THAT SMOKE AND FLUE GASES ARE NOT DRAWN INTO, OR CIRCULATED BY, THE AIR CIRCULATION SYSTEMYour appliance has been manufactured in the Valley Comfort tradition of high quality.
To ensure years of trouble free operation, have your furnace serviced regularly by yourValley Comfort dealer.
After each heating season thoroughly clean the chimney and firebox so your system isready for next fall. Inspect all firebricks and replace any damaged bricks.
Have a warm safe winter!

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

INSTALLATION INSTRUCTIONSGENERAL
Please take time to read these instructions thoroughly. Not following the instructions
could result in a faulty installation causing serious problems. Along with these general
instructions you must follow the specific instructions which pertain to your particularinstallation i.e.: add-on to electric, gas, oil or independent installations.

FREIGHT DAMAGE
This product was carefully inspected before it left Valley Comfort. Inspect the unit thoroughly upon its arrival. If damage is found report it to the carrier and then immediately
file a freight damage claim. Your local Valley Comfort dealer will assist if required.

PARTS INCLUDED WITH VC120
1. Furnace
2. 3 Fan limit controls and bracket
3. Thermostat (Honeywell T822d or equivalent)
4. Large baffle brick holders
5. Small baffle brick holder
6. Full size firebricks
7. Cut firebricks
8. Mesh cover for combustion air inlet
9. Poker
10. Ash shovel
11. Instruction book

OPTIONAL EQUIPMENT
1. Blower and cabinet for independent use (900 cfm. to 1200 cfm.)
2. 24 volt control transformer

USAGE
The VC120 may be installed as follows:
1. An add-on to any of the following furnaces:
A. An electric forced air furnace rated at 15 KW to 30 KW with a minimum size fan of 900 cfm.
B. A forced air gas furnace with a maximum output of 140,000 btu. anda minimum size fan of 900 cfm.
C. An oil furnace having an oil input as shown on the nameplate of not
more than 1.25 usgph. and a fan capacity of not less than 900 cfm..
2. As an independent forced air wood furnace equipped with a blower of notless than 900 cfm. capacity.
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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

CAUTIONS
1. All installations must comply with local building safety codes.
2. Installation shall be by a licensed, qualified installer experienced in heating equipment installations.
3. THE WOOD SECTION MUST BE VENTED INTO A CHIMNEY APPROVED FOR SOLID FUEL USE IN
GOOD CONDITION. MOST GAS FURNACES ARE VENTED INTO "B" VENTS, THIS IS UNACCEPTABLEFOR SOLID FUEL APPLIANCES. THE VC120 MUST NOT BE VENTED INTO ANY TYPE OF CHIMNEY
THAT ALSO SERVES AS A GAS APPLIANCE VENT.
4. DO NOT CONNECT THE DUCT WORK SO REVERSE OR PARALLEL FLOW IS POSSIBLE.
5. DO NOT RELOCATE ANY OF THE CONTROLS ON THE ORIGINAL OR ALTERNATE FURNACE.

6. Ensure that all existing or alternate furnace systems are in good operating condition before installing the add-on.
Valley comfort Systems Inc. supports the Wood Energy Technology Transfer Inc. This organization provides training and certification for personnel involved in installation and maintenance ofwood heating systems across Canada.

MINIMUM CLEARANCES TO COMBUSTIBLES
Wood charging end
One side
Other side for servicing
Single wall flue to combustibles
including electric wiring and electric furnace
Plenum and first 6 ft. of supply duct

- 48 in.
- 6 in.
- 24 in.
- 18 in.
- 2 in.

If the furnace sits on a combustible floor, a non-combustible shield must be used underneath and extending 6 in. out from all sides and 18 in. out from the charging end. Thisfloor protection is required to prevent sparks from falling onto the combustible floor. See
CSA B365-M87) It is not required to be a heat protective covering.
This furnace must be installed in compliance with all local codes and regulations.

LOCATION RE ALTERNATE FURNACE
The VC120 can be located on either side of the alternate furnace, and in a series downstream
configuration, as space permits. Minimum size of the interconnect duct is 10 in. x 18 in. DO
NOT USE INTERCONNECT DUCT ELBOWS THAT HAVE AN INSIDE RADIUS OF LESS
THAN 6" (150mm.). NOTE: After interconnect duct opening has been cut into the side of the
VC120 , insulation must be fastened back to the furnace cabinet all around the opening. Use
the metal strips provided to hold the insulation tightly against the cabinet inside. This will prevent the insulation from dislodging due to blower induced vibration. (see diagram below)

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

Typical installation illustration
PRESSURE LOSS
Before any changes are made to the existing furnace system you must establish the working parameters of that system. You can then insure that addition of the add-on has not degraded theoperation of the original system, and correct air flow will be maintained. Change all filters in thesystem to insure maximum free air flow. Using an accurate manometer check the static pressure
at the end of a typical duct near the exit to the house. Check the static pressure in the plenum
above the existing furnace also.
Pressure drop = Static pressure at furnace -(minus) static pressure at duct exit
Record the pressure drop of the original system.
Addition of the add-on furnace will add airflow resistance in the system. After installation is complete measure the pressure drop in the same run measured before add-on installation. If the air
flow has diminished the blower speed should be adjusted to compensate. When using a belted
blower the pulley size should be changed or adjusted to speed up the blower. If the pulley size isadjusted measure the blower motor current to insure that it is still within the nameplate rating. It
may be necessary to replace the motor with a more powerful motor. If a direct drive blower isused change to a higher speed. Do not change the blower size.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

COMBUSTION AIR
Insure adequate combustion air allowing for all other exhausting type appliances in the dwelling (range hoods, dryers, etc). Outside combustion air can be connected directly to the combustion air inlet on either side of the lower front cover. Cut an opening 3 1/2" x 9 1/2" (Fig 1A).
Use a 4"x10" to 6" round boot to connect outside air duct. Minimum duct for outside air is 6"
with not more than 2 90o elbows in line, keep this outside air line as short as practical. If you
do not use outside combustion air you must cover the opening cut in the lower front coverwith the mesh screen provided in the furnace accessory kit.

LOCATION RE FLUE
The Chimney must be an approved chimney for use with solid fuel fired appliances, It must be
in good repair, free from leaks and obstructions. If using a masonry chimney, it must meet theminimum standards of the building code of Canada. The wood flue must always enter thechimney below the oil flue. You must comply with the local authority having jurisdiction and CSA installation standard B365-M87. DO NOT OPERATE THE VC120 WITH A
DRAFT OF OVER .06 INCHES WATER COLUMN. HIGHER DRAFT LEVELS MAY CAUSETHE FIRE TO BURN OUT OF CONTROL AND CREATE A FIRE HAZARD.
Flue pipe between the furnace and the chimney should be as short and direct as possible andhave a minimum rise of 1/4" per running foot. The chimney connector must be attached toeither an approved masonry chimney or one of the listed factory built chimneys suitable foruse with solid wood fuel. All joints must be tight and fastened with sheet metal screws. Placethe small (crimped) end of the pipe into the furnace collar and into each preceding length ofpipe to insure that any creosote which might form will run back down into the furnace see fig
10 below..
WARNING: Chimney connector is to be used only within the room, between the stoveand ceiling/wall. Never use a chimney connector to pass through a combustible ceiling or wall. Always maintain the minimum clearances to combustibles as required by
the applicable building codes. Recommended draft is .04 in. water COLUMN. It is unsafe
to operate the furnace with more than .06 in. water column draft. Use a barometric control ifnecessary to achieve this.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

CHIMNEY HEIGHT REQUIREMENTS
Regardless of whether you use a masonry chimney, or a listed metal chimney, it must be therequired height above the roof and other obstructions. The minimum requirement is that thechimney must be at least 3 feet higher than the highest point where it passes through the roof
and at least 2 feet higher than the highest part of the roof or structure that is within 10
feet,measured horizontally, from the chimney

The height requirement is necessary in the interest of safety and does not necessarily assure
proper flue draft. Use a minimum total system height of 12 feet, measured from the stove flue
collar to the top of the chimney, not including the chimney cap.
CABINET INSTALLATION
Attach the cabinet parts to the firebox using the drill/self tapping screws provided. Following
is the sequence of cabinet assembly:
1. place the top rear panel over the smoke pipe and install the adjustable collar
around the flue pipe.
2. Remove temporary screws around bottom pan edges. Install side panels with lower
edge inside bottom pan lip. Secure around bottom edge and with 1 screw in upper
front flange.
3. Install rear panel over side panels and secure with screws along sides.
4. Install upper front panel and secure with 2 screws on each side.

THERMOSTATSYour system uses two thermostats - one to control the wood add-on and one to control thealternate furnace. The alternate (electric, gas or oil) thermostat must be interlocked to thelimit switches provided on the wood furnace plenum. This is to prevent the alternate furnacefrom operating when the plenum temperature rises above 150oF. Thermostats should be
mounted side by side on an inside wall out of direct sunlight or other heat sources.
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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

ELECTRICAL GENERAL
All wiring on the VC120 shall be fastened to the insulated cabinet surfaces only. This is toprevent overheating by direct contact with firebox components.
Electrical installation must be done by a qualified licensed electrician, experienced in control
circuit wiring.

FAN LIMIT INSTALLATION
Using the bracket provided, install the fan limit junction box assembly onto the furnace cabinet and warm air plenum, centering it above the firebox fuel door. All wiring must be routed
on the outside of the cabinet surface. Installation of wiring must be by a qualified electrician. See instructions for wiring diagrams which apply to your specific installation.
TEMPLATE FOR DRILLING HOLES—CUTOUT LINES

Ø0.80 in (3x)3.50 inVersion 1.04

3.50 in16

Date printed: February 15, 2008

Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

BRICK AND BAFFLE INSTALLATION
Firebox bricks and baffle components are shipped separately to reduce unit weight and ease installations.
NEVER OPERATE THE FURNACE WITHOUT FIRST INSTALLING ALL
BRICKS AND BAFFLES IN THE FIRE BOX.
Caution: Firebricks are heavy. Use all necessary precautions to prevent injury from bricks
falling during installation.
Install the bricks in the baffle holders and install the baffles in the upper firebox on the supports provided as per the following diagram below. Care must be taken to ensure that the baffle holders are
situated correctly and sitting solidly on the side supports to prevent flue gases from escaping aroundthe baffle. Missing or improperly installed baffle bricks will increase flue gas temperatures resulting
in dangerous conditions. Operating efficiency is also greatly reduced which means you will burnmore wood than necessary. (FIG 2). Hang the rear firebox protection plate on the hooks provided.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

Install firebox liner brick in the sequence indicated by number in the following diagram. (FIG 3)

ADD-ON TO ELECTRIC FURNACE
The VC120 may be added to an electric furnace with heating capacity between 15KW and 30KW.
Minimum blower capacity must be at least 900 cfm. Electric furnaces approved for installation in any
position can be inverted and used in a down flow position using an adapter duct between the furnace and the add-on as indicated in fig. 1. The electric furnace may be located on either side of the
VC120 but clearances to combustibles must be maintained. Refer to general and pressure loss (pg13) instruction portions of this manual also.
If changes are made to the installation of the electric furnace they must comply with CSA Standard
C22.1.
An interlock limit switch must be included in the control circuitry to prevents the electric furnace fromoperating when the output plenum temperature is above 150oF. Typical wiring diagram follows, Fig
4 and 4A.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

ELECTRICAL CONNECTIONS WOOD/ELECTRIC WITH W1,R,G
AND C CONNECTIONS.
This Figure is not a physical representation of your electrical connections. Limit switches and relays may be laid out differently than shown. The words and letters marked on the switches andrelays should be followed and connections made to the proper locations.

L4 064 R1 027
I NT E RL OC K L IM I T
15 0 DE G F

L4 064 R1 043
L I M IT22 0 DE G F

L4 064 N1 058
L I M IT MA N UA L R E S E T / FA N
25 O F (1 21 C)

BreakJumperJunction
Box

ALTERN ATE THER MOSTATWOOD THER MOSTATW1

R (24V IN)

D AMP ERMOT ORC (Common)

G

Optional
CF-6KIT

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

ADD-ON TO GAS FURNACE
The VC120 may be connected to a gas furnace having a rated input of up to 140,000 BTU.
Minimum blower capacity must be at least 900 cfm. A counter flow gas furnace may be usedwith an interconnect duct as indicated in Fig 1. A regular up flow gas furnace may be used andconnected as per Fig 1. The VC120 can be located on either side of the gas furnace. Minimum
interconnect duct size is 10" x 18" with minimum 6" inside radius elbows. Do not, under any
circumstances, connect the VC120 flue to a chimney that also vents the gas furnace. The wood
furnace requires a chimney approved for solid fuel use. Maintain clearances to all combustibles.
Refer to general instructions portions of this manual also.
THE OPERATION OF THE GAS FURNACE MUST BE VERIFIED FOR ACCEPTABLEOPERATION, BEFORE AND AFTER INSTALLATION OF THE ADD ON, BY A GAS FITTER
WHO IS RECOGNIZED BY THE REGULATORY AUTHORITY. DO NOT CONNECT TO ANYFURNACE THAT HAS NOT BEEN CERTIFIED INITIALLY AS COMPLYING WITH CGA
STANDARD CAN1-2.3 OR ITS PRECEDENTS. DO NOT CONNECT TO ANY FURNACE THATIS NOT EQUIPPED WITH AN AIR CIRCULATION BLOWER.
DO NOT CONNECT, UNDER ANY CIRCUMSTANCES, TO A CHIMNEY SERVING A GASFURNACE OR OTHER GAS APPLIANCE.
AN INTERLOCK LIMIT SWITCH MUST BE INCLUDED IN THE CONTROL CIRCUITRY PREVENTING THE GAS FURNACE FROM OPERATING WHEN THE SYSTEM OUTPUT
PLENUM TEMPERATURE IS ABOVE 150°F. TYPICAL WIRING DIAGRAM FOLLOWS: FIG 5.

ADD-ON TO OIL FURNACE
The VC120 may be connected to an oil furnace having a rated input of up to 1.25 USGPH. Minimum blower capacity must be at least 900 cfm.. A regular up flow oil furnace may be used andconnected as per fig. 1. The VC120 can be located on either side of the oil furnace. Minimum
interconnect duct size is 10" X 18" with minimum 6" inside radius elbows. The wood furnace requires a chimney approved for solid fuel use. Maintain clearances to all combustibles. Refer togeneral instructions portions of this manual also.
If changes are made to the installation of the oil furnace these changes must comply with CSA
Standard B139.
An interlock limit switch must be included in the control circuitry preventing the oil furnace fromoperating when the system output plenum temperature is above 150°F. Typical wiring diagram
follows:

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

ELECTRICAL CONNECTIONS WOOD/OIL WOOD/GAS AND
WOOD/ELECTRIC (WITHOUT R, G AND C CONNECTIONS).
This Figure is not a physical representation of your electrical connections. Limit switches and relays
may be laid out differently than shown. The words and letters marked on the switches and relays
should be followed and connections made to the proper locations.

L4 064 R1 027
I NT E RL OC K L IM I T
15 0 DE G F

L4 064 R1 043
L I M IT22 0 DE G F

L4 064 N1 058
L I M IT MA N UA L R E S E T / FA N
25 O F (1 21 C)

BreakJumperJunction
Box

ALTERN ATE THER MOSTATWOOD THER MOSTAT

W1(24V out tofutnace control)

24V INC (Common)

D AMP ERMOT OR

Fan Control to
Alternate Furnace (High Voltage)

Optional
CF-6KIT

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

INDEPENDENT WOOD FURNACE
When installed with a blower cabinet mounted on either side the VC120 becomes an
INDEPENDENT wood only furnace. The blower must have a minimum 900 cfm. capacity(1/3 hp.). In this configuration the interlock limit is not used. Figure 6 shows the electricalconnections, (use only 2 limit switches).

L4 064 R1 027
I NT E RL OC K L IM I T
15 0 DE G F

L4 064 R1 043
L I M IT22 0 DE G F

L4 064 N1 058
L I M IT MA N UA L R E S E T / FA N
25 O F (12 1 C)

Junction
Box

120V IN

TRANSFORMER
24V OUT

Optional
CF-6KITN
120VAC IN

WOOD THER MOSTATND AMP ERMOT OR

120VAC Out to Blower

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

VB1000 Valley Comfort Blower Specifications
For use with Valley Comfort MP80 & VC120 Wood Furnace(Stand Alone Applications)This opening
6"
5 /1
1
attaches to17
the plenum
22 "
3/4"

1"
1"

19 7/16 "This opening
attaches tothe furnace

1 29/32 "13 23/32"

11 13/16 "13 1/4 "1/3 HP 110V Motor 6 3/16 " Adjustable from 900cfm to24"1200 cfm
 20ga Steel Cabinet Construction
 High Quality Baked Enamel Finish
 Color matched to Valley Comfort Wood
Furnaces
 Complete with 24" X 20" Air Filter
Please check the dimensions on this drawing against the unit you are installing, as there may besome slight variation in the dimensions due to manufacturing tolerances and or changes.

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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

1

5
91

/1 6

"

VALLEY COMFORT SYSTEMS INC.
LIMITED WARRANTY - VC120
WARNING: TO VALIDATE THIS WARRANTY YOU MUST COMPLETE AND RETURN THE WARRANTY CARD WITHIN 20 DAYS OF THE DATE OF PURCHASE.
WHAT THE WARRANTY COVERS:
This warranty contains different terms that cover different parts of the furnace. VALLEY COMFORT SYSTEMS INC warrants the STEEL COMPONENTS including the COMBUSTION CHAMBER and CAST LINERS of the VALLEY COMFORT
furnace, which is delivered with this warranty, against defects in material or workmanship to you, the original retail purchaser (hereafter referred to as purchaser), for a period of up to five (5) years following the date of original retail purchase,subject to the provisions of RESPONSIBILITIES OF THE COMPANY below. VALLEY COMFORT SYSTEMS INC warrants the FAN LIMIT CONTROLS, THERMOSTAT, DAMPER MOTOR, DOOR GASKETS, ELECTRICAL RELAYS (ifapplicable) and the BLOWER MOTOR (if applicable) of the VALLEY COMFORT furnace, which is delivered with this warranty, against defects in material or workmanship, to the purchaser, for a period of one (1) year following the date of original retail purchase, subject to the provisions of RESPONSIBILITIES OF THE COMPANY below.
No person is authorized to modify this warranty or to make any additional warranties on behalf of the manufacturer, VALLEY COMFORT SYSTEMS INC.

WHAT THE WARRANTY DOES NOT COVER:
Unless otherwise provided by law or covered by this warranty, VALLEY COMFORT SYSTEMS INC is not responsible forremoval, transportation or re-installation of any product repaired or replaced pursuant to this warranty. VALLEY COMFORT SYSTEMS INC shall in no event be liable for special, incidental, consequential, indirect or other similar damages
arising from the breach of the warranty, even if VALLEY COMFORT SYSTEMS INC has been advised of the possibility ofsuch damages. Some provinces do not allow the exclusion or limitation of incidental or consequential damages, so theabove limitation or exclusion may not apply to you. VALLEY COMFORT SYSTEMS INC limits all implied warranties, ifany, including the warranties of merchantability or fitness for particular purpose, to one (1) year from the date of originalretail purchase. Some provinces do not allow limitations on how long implied warranty lasts, so the above limitation may
not apply to you. Actions for breach of this warranty must be brought within one (1) year of the expiration of this warranty.

HOW YOU CAN GET SERVICE:
If this product requires repair or replacement due to defects in material or workmanship covered by this warranty, contact
your VALLEY COMFORT dealer and explain the defect. If the dealer does not repair or replace the product to your satisfaction, contact the Service Department of VALLEY COMFORT SYSTEMS INC at 1-250-493-7444 or write to 1290 Commercial Way, Penticton, BC, V2A 3H5. Please explain the defect and state the model, serial number, date of retail purchase, and the name and address of your VALLEY COMFORT dealer. VALLEY COMFORT SYSTEMS INC may requestthat the defective part, parts, or the entire furnace, be shipped to VALLEY COMFORT SYSTEMS INC at the purchaser’s
expense.

RESPONSIBILITIES OF THE COMPANY:
IF the purchaser has complied with all of the terms and conditions of this warranty and IF the purchaser has notified VALLEY COMFORT SYSTEMS INC of a defect prior to the expiration of the respective warranty period and after shipment,
VALLEY COMFORT SYSTEMS INC will either repair or replace the product, AT ITS ELECTION, or MAY ELECT to refund
a portion of the purchase price, based on the formula below, if it cannot readily and quickly provide the purchaser with areplacement, if the purchaser is willing to accept such a refund. The repaired product or replacement will be returned to a
VALLEY COMFORT dealer nearest the purchaser at VALLEY Comfort’s expense. IF it is determined by VALLEY COMFORT SYSTEMS INC that there is no defect, or that the defect resulted from causes not within the scope of this warranty,
THEN the purchaser must bear the cost of storing the product and of returning the product to the purchaser. For parts ofthis furnace warranted beyond the first year, VALLEY COMFORT SYSTEMS INC will have the same obligations as described in this paragraph, provided, however, that the purchaser shall pay the following percentage of the then-current
retail cost of the repair or the replacement, according to the year after purchase in which the defect is brought to the attention of VALLEY COMFORT SYSTEMS INC:
during the 2nd year .................... purchaser pays 20%
during the 3rd year .................... purchaser pays 40%
during the 4th year ..................... purchaser pays 60%
during the 5th year ..................... purchaser pays 80%

VALLEY COMFORT SYSTEMS INC
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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

LIMITED WARRANTY - VC120
MISUSE OF FURNACE NULLIFIES WARRANTY:
The above warranty is conditional upon the proper installation and use of the furnace according to the
manufacturer’s directions embodied in the Owner’s Installation and Operation Instructions published by
VALLEY COMFORT SYSTEMS INC and in compliance with the local building or fire codes in the area
where it is installed. The furnace should be inspected by the Local Building Inspector or Fire Department
prior to beginning use. A copy of the Owner’s Installation and Operation Instructions is provided witheach unit, or can be obtained by writing to VALLEY COMFORT SYSTEMS INC at the address shown below. READ THE OWNER’S INSTALLATION AND OPERATION INSTRUCTIONS BEFORE INSTALLING
OR USING THE FURNACE. SAVE THESE INSTRUCTIONS FOR FURTHER MAINTENANCE AND
SAFETY PROCEDURES. Alteration of, abuse of, damage to, lack of maintenance of, faulty repair, OR
misuse of the furnace, VOIDS this warranty. Use of fuel other than natural untreated wood (such as artificial logs, wood exposed to salt water, or coal that may burn at excessively high temperatures or may release fumes that can explode) will VOID this warranty. Burning the furnace with the loading door open
(other than during the brief start-up period) will also VOID this warranty.

OTHER LEGAL RIGHTS OF THE PURCHASER:
This warranty gives you specific legal rights, and you may have other rights that vary from province toprovince. All parts of this warranty are to be interpreted in accordance with the laws of British Columbia/
Canada. If you do not agree to the purchase of the furnace on the terms and conditions set out in thiswarranty, then you must return the furnace to the dealer prior to use or installation, and the purchaseprice will be refunded.

THIS WARRANTY ONLY COVERS UNITS INSTALLED IN CANADA OR THE U.S.A.
_____________________________________________________________________________________________PLEASE KEEP YOUR RECEIPT AS PROOF OF PURCHASE.
ALL WARRANTY CLAIMS SHOULD BE MADE THROUGH THE DEALER YOU
ORIGINALLY PURCHASED YOUR HEATER FROM.

WARNINGTO VALIDATE THIS WARRANTY YOU MUSTCOMPLETE AND RETURN THE WARRANTY CARD
WITH 20 DAYS OF THE DATE OF PURCHASE
this product is proudly manufactured in Canada by:

VALLEY COMFORT SYSTEMS INC.
1290 COMMERCIAL WAY
PENTICTION, BRITISH COLUMBIAV2A 3H5(250) 493-7444
www.valleycomfort.com
Email sales@blazeking.com
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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

INDEX
BRICK AND BAFFLE INSTALLATION

17CABINET INSTALLAION

15CHIMNEY HEIGHT

15

CLEARANCES12COMBUSTION AIR

12CREOSOTE

8

DRAFT

6

ELECTRIC ADD ON

18

ELECTRICAL GENERAL INFORMATION16FAN LIMIT INSTALLATION

16

FLUE LOCATION14GAS FURNACE ADD ON

20

INSTALLATION INSTRUCTIONS

11

MAINTENANCE

10OIL FURNACE ADD ON

20

OPERATION INSTRUCTIONS

5OPERATIONS

5,6

OPTIONAL EQUIPTMENT

11

PARTS LIST

11

POWER FAILURE

7

PRESSURE LOSS

11

SAFETY PRECAUTIONS

4

SPECIFICATIONS

3

THERMOSTATS

15

VB1000 INSTALLATION23WARRANTY

24, 25WIRING DIAGRAM WOOD/ELECTRIC

19WIRING DIAGRAM STAND ALONE22

WIRING DIAGRAM WOO/OIL, WOOD GAS

21

WOOD TYPE
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Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444

Version 1.04

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Date printed: February 15, 2008

Valley Comfort Systems Inc
1290 Commercial Way, Penticton, B.C. V2A 3H5 250-493-7444